A rock bolt and meshing assembly for installation of meshing sheet against a surface of rock strata. The rock bolt comprises an adapter having a first portion connectable to a trailing end of an elongate shaft of the rock bolt and means configured to receive and mount a meshing clamp to overlay a second section of meshing sheet against an already laid first section of meshing sheet.
E21D 11/00 - Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
E21D 21/00 - Anchoring-bolts for roof, floor, or shaft-lining protection
2.
SCREENING ASSEMBLY AND MOBILE MATERIAL PROCESSING MACHINE
A screening assembly for screening material and comprising of an assembly frame (201), a multi-deck screening device (202), a transfer conveyor (205) and a drive means, wherein the drive means is operable to shift at least one of the discharge ends of the screening device and the receiving end of the first conveyor relative to the assembly frame, to allow the transfer conveyor to selectively receive material from an upper screen and from both screens at their respective discharge ends. A mobile material processing plant comprising said screening assembly is included.
A tool body (2) includes a damping apparatus for damping vibrations in a machining tool having besides the tool body a member with at least one cutting edge to be secured to the tool body. The damping apparatus is arranged in an internal room (7) of the tool body and comprises a damper mass body (9) with an axial bore (10) and a central tube (11) extending through the bore and which is rigidly secured to the damper mass body inside the through bore. A central tube (11) is also at both ends (12, 13) thereof rigidly connected to a tool body fixed part (14, 15) and the central tube is made of a material with a spring property allowing the damper mass body (9) to oscillate in the internal room (7) perpendicularly to the longitudinal extension of the central tube.
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
A cutting drum for a borer-type continuous miner and in particular, although not exclusively, to a bottom cutting drum mountable immediately behind forwardmost primary cutting rotors. The cutting drum comprises a plurality of material transport blades extending lengthwise along the drum between the pick holders and positioned side-by-side in a circumferential direction around the drum to cover an outward facing drum face. The blades are effective to provide transport of cut material to minimise power consumption of the cutting head and accelerated wear of cutting picks.
E21C 25/52 - Machines incorporating two or more of the slitting means according to groups , , , and
E21C 27/12 - Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
E21C 27/22 - Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills
E21C 27/24 - Mineral freed by means not involving slitting by milling means acting on the full working face
A cutting head attachment assembly for a cutting tool. The assembly comprises a body forming an axially forward part of the cutting tool attachable to a cutting head via a clamping element and a fixation element. A guide surface provided at the body or cutting head extends in both a radial and an axial direction to support movement of the clamping element in both the radial and axial directions via actuation of the fixation element to force and clamp together axially the head and body.
A down the hole rock drilling machine and a method of drilling rock. The drilling machine comprises a casing (15) inside which is a control sleeve (20). A reciprocating piston (19) is arranged to move inside the control sleeve and control feeding and discharging of working chambers (20, 21). Between the control sleeve and an inner surface of the casing are all the fluid passages (28, 29, 30, 31) needed for fluid routing. The piston opens and closes transverse openings and controls the work cycle.
A ferritic alloy comprising the following elements in weight% [wt%] C 0.01 to 0.1; N: 0.001 to 0.1; O: = 0.2; Cr 4 to 15; Al 2 to 6; Si 0.5 to 3; Mn: = 0.4; Mo + W = 4; Y = 1.0; Sc, Ce, La and/or Yb = 0.2; Zr = 0.40; RE = 3.0; balance Fe and normal occurring impurities and also fulfilling the following equation has to be fulfilled: 0.014 = (Al + 0.5SQ (Cr + 10Si + 0.1) = 0.022.
A friction rock bolt assembly to frictionally engage an internal surface of the bore formed in rock strata. The rock bolt comprises a loading mechanism provided at a rearward end of the rock bolt having a load absorber to absorb an initial predetermined loading force followed by transfer of the force to a main load element.
A friction rock bolt assembly to frictionally engage an internal surface of a bore formed in rock strata. The rock bolt comprises an expander mechanism having at least two radially outer wedge elements engageable by an inner wedge element. The expander mechanism is configured for symmetrical displacement of the expander elements to provide a controlled means of enlargement by the rock bolt within the borehole for secure anchorage.
A cutter (127) for a cutting unit (700) used in cutting apparatus (100) suitable for creating tunnels or subterranean roadways. The cutter (127) includes: a disc body (711) having an underside (732), an upper side (730) arranged substantially opposite to the underside (732), and a radially peripheral part (738); a plurality of buttons (710) for abrading rock, said buttons (710) are mounted in the radially peripheral part (738) of the disc body and protrude outwardly therefrom to engage rock during an undercutting operation, wherein at least some of the buttons (710) have a cutting part (710b) comprising a dome-shaped cutting surface.
E21C 35/183 - Mining picks; Holders therefor with inserts or layers of wear-resisting material
E21D 9/10 - Making by using boring or cutting machines
E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
Cutting apparatus (100) for creating tunnels or subterranean roadways comprises: a support structure (800) having first and second cutting assemblies (900), with a rotatable cutting head (128) and a mounting assembly (902), which includes a first pivot axis (400) wherein the cutting head is movable about the first pivot axis (400) thereby enabling the cutting head (128) to move in a generally sideways direction, mounting assembly includes second pivot axis (401) wherein the cutting head (128) is movable about the second pivot axis (401) thereby enabling the cutting head (128) to move in an upwards-downwards direction; cutter (127) includes disc body (711) and buttons (710) for abrading rock, wherein some buttons (710) have a central longitudinal axis (745) that subtends an angle with respect to reference axis (746), which extends perpendicularly outwards from the central longitudinal axis (704) of the shaft, wherein the angle is between 20° and 34°.
A cutting head (128) for cutting apparatus (100) for creating tunnels or subterranean roadways having: a rotatable cutting head body (131); a plurality of cutting units (700A,700B) mounted on the cutting head body (131), said cutting units including different types of cutting units, wherein the different types of cutting units (700A,700B) are different from one another by at least the arrangements of their buttons (710A,710B).
Conveyor belt deflection apparatus for deflecting a conveyor belt to extend between a first longitudinal direction and a second longitudinal direction. The apparatus comprises a set of belt deflector rollers and supporting frame sections. A plurality of belt adjusters are mounted at different regions of the apparatus to provide a different respective translational adjustment of the belt as it travels from a first section to a second section.
The present disclosure relates to the use of a solution-annealed object comprising a duplex stainless steel, having the following composition in weight% (wt %): C less than or equal to 0.03; Si less than or equal to 0.5; Mn less than or equal to 1.0; Ni 5.0 to 7.0; Cr 22.0 to 26.0; Mo 2.5 to 4.5; N 0.1 to 0.2; P less than or equal to 0.03; S less than or equal to 0.03; Cu less than or equal to 0.3; Al less than or equal to 0.10; the balance being Fe and inevitable impurities; wherein the duplex stainless steel fulfills the equation of Cr+50N = 35; and wherein the duplex stainless steel has a ferrite phase content in the range of from 40% to 60 % by volume and an austenite phase content in the range of 40 to 60 % by volume; in sea water applications.
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
C21D 8/06 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for strips
A crushing segment (14) forming a part of a crushing roll (12) of a roll crusher (10), the segment (14) comprising a main body to mount at least one crushing tooth. A filler material (49) interposed between and extending over a majority of each of the positionally opposed first (22) and second (34) mount faces provided at the tooth and main body so as to provide enhanced surface area contact between the tooth and segment and increase the capability of the tooth and segment assembly to withstand significantly high loading forces during use.
A system for monitoring a status of attachment of a ground engaging tool (GET) at a mining, earth moving or rock processing machine. The system comprises providing GET with at least one proximity sensor configured to sense a proximity of the GET relative to a mount region of heavy machinery to which the GET is mountable. The proximity sensor is configured to generate proximity data that is transmitted from the GET via a wireless communication pathway to a receiver located remote from the GET with the receiver configured to output in real-time the attachment status of the GET. The present system is advantageous to identify partial detachment or loosening of a GET so as to prevent undesirable GET loss and contamination of extracted or processed raw material.
E02F 9/28 - Small metalwork for digging elements, e.g. teeth
G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
G07C 3/08 - Registering or indicating the production of the machine either with or without registering working or idle time
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
Screening media to screen oversized material having a main body and a plurality of openings extending through the main body between an upward facing contact face and a downward facing bottom face. A textured pattern is provided at the contact face to provide a roughened surface for the partial entrapment of material fines. Such a configuration protects the screen media from aggressive contact with the material to be screened and provides a bedding layer that is maintained by material-on-material attrition during bulk material flow over the media.
The present disclosure relates to a screening media for a vibratory separator wherein said media comprises of two or more layers of rubber, wherein the layer below the top layer is reinforced with fabric rendering the media more durable (i.e. better hole tolerance and increased hole capacity in comparison to its predecessors). Additionally, the fabric-reinforced layer acts as a wear-indicator for the operator of the assembly, since the fabric has a color different from the color of the rubber. When the top rubber layer gets torn due to excessive wear, the fabric-reinforced layer is exposed which serves as an indication for the operator to replace the screen. The screening media is lighter, capable of being rolled into a mat, easy to transport and install, and cost-effective to produce when compared to currently existing screening media. Said rubber screening media is manufactured using rotating drum vulcanization process.
A roller cutter unit (13) mountable at a cutting head (15) of undercutting mining machines (10). The cutter unit comprises an elongate mount shaft (23) to position and support a cutter ring (14). The cutter ring (14) is secured to the mount shaft via a bracket (17) having a wedge segment (24) configured to be wedged axially and radially between the cutter ring and the shaft. Accordingly, a mounting mechanism is provided to achieve a desired force transmission pathway from the cutter ring into the shaft so as to maximise the locking action of the cutter ring at the cutter unit.
A method for cutting a groove of a predetermined groove width in a work piece, comprising the steps of providing a metallic work piece (18) having a peripheral surface (31); providing a grooving tool (1) comprising a blade portion (2) having a constant or substantially constant blade width (13), and an insert (3) having a maximum insert width (14) defined by a main cutting edge (11); selecting the insert width (14) to be greater than the blade width (13); connecting the grooving tool (1) to a machine interface (19) of a machine tool; rotating the work piece (18) about a rotational axis (A) thereof in a rotational direction (24); cutting a groove (33) in the work piece (18) by moving the tool (1) in a feed direction (15) towards the rotational axis (A) of the work piece (18) such that the groove width is equal to or substantially equal to the insert width (14) and such that a tangential cutting force (37) is directed towards or substantially towards the machine interface (19).
A blade portion (2) for a grooving tool (1); the blade portion (2) comprising: opposite first and second surfaces (4, 5), wherein a blade width (13) is defined as a shortest distance between the first and second surfaces (4,5); opposite third and fourth surfaces (8, 9); a fifth surface (6) and an opposite blade portion end (7); wherein the blade width (13) is constant or substantially constant from the fifth surface (6) up to the blade portion end (7); an insert seat (10) separating the third surface (8) and the fifth surface (6); wherein the insert seat (10) can receive an insert (3) comprising a main cutting edge (11), an associated rake face (12), and an associated main clearance surface (25); wherein the main cutting edge (11) defines an insert width (14) being greater than the blade width (13). The insert (3) is mountable in the insert seat (10) such that the main clearance surface (25) and the third surface (8) are facing in the same direction (15) or in substantially the same direction (15); and a shortest distance (16) from the fifth surface (6) to the opposite blade portion end (7) is greater than a shortest distance (17) from the third surface (8) to the fourth surface (9).
The invention relates to an operation arrangement and a method for operating a mobile haulage arrangement for continuously conveying fragmented material in a conveying direction. The operation arrangement comprises a first and a second operation unit arranged at a first or second transport unit, respectively and adapted for exchanging, storing and processing data and for generating a steering signal for steering the first or second transport unit, respectively. The first and second operation units comprise first and second sensors to scan at least a section of the surroundings. The operation arrangement is adapted to compare second scan results from the second sensor with first scan results from the first sensor, with the second scan results being obtained at a travel position of the second transport unit corresponding to a travel position of the first transport unit at which the first scan results were obtained.
A tool body (2) includes a damping apparatus comprising a damper mass body (9) with an axial through bore (10) and a central tube (11) received in the through bore while being surrounded by a cavity (14). An elastic element (15, 16) is arranged on each side of the damper mass body (9) and provided with two socket-like portions (25, 26) extending axially through a central hole of two disc-like members (19, 20) clamping the elastic element (15,16) therebetween. These socket-like portions (25,26) project in a rest state of the elastic element (15,16) axially beyond the respective axially directed side of the respective disc-like member (19,20) and are in an assembled state of the tool body (2) compressed for sealing the cavity (14) with respect to the exterior.
A rock drill insert made of cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented 5 carbide comprises 4-18 mass % Co and balance WC and unavoidable impurities, characterized in that said cemented carbide also comprises Cr in such an amount that the mass ratio Cr/Co is within the range of 0.04-0.19, and, the difference between the hardness at 0.3 mm depth at any point of the surface of the rock drill insert and the hardness of the bulk of the rock drill insert is at least 40 HV3. 10
C04B 35/56 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
A computer program (102) includes data defining tool paths for manufacturing a component (108). The component geometry is estimated (403) based on the program. Deviation of a first type is estimated (404) as deviation between the estimated geometry and geometry of the component as defined by a 3D model (102). Deviation of a second type is estimated (409), based on machining process characteristics indicated by sensor data (301) captured during manufacturing (213) of the component, as deviation between a tool path a machine (107) is instructed via the program to provide and an actual tool path provided by the machine. Deviation of a third type is computed (410) as deviation between geometry defined by the 3D model and measured geometry of the manufactured component. An error propagation model is updated (411) based on the estimated and computed deviations for multiple components. The error propagation model approximates relations between deviations of the first and second type and deviations of the third type.
A cutting tool (100), a turning machine (200) comprising the cutting tool, and an associated method (400) are provided. The cutting tool comprises a tool bar (110) extending along an axis (111), a cutting head (120) located at the tool bar, and at least one sensor (130) integrated with the tool bar or the cutting head. A rotational orientation of the cutting tool with respect to the axis is estimated based on output provided by the at least one sensor. In at least some embodiments, the at least one sensor comprises accelerometers configured to measure acceleration in at least two directions (131, 132).
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
B23B 27/00 - Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
G01C 9/06 - Electric or photoelectric indication or reading means
A cutting tool (100), a turning machine (200) comprising the cutting tool, and an associated method (400) are provided. The cutting tool comprises a tool bar (110), a cutting head (120), a strain gauge (130), and an accelerometer (140). The cutting head is located at the tool bar and has a cutting edge (121). The strain gauge measures strain at the tool bar. The accelerometer measures acceleration at the tool bar or the cutting head. Deflection of the cutting edge is estimated based on output from the strain gauge and the accelerometer. In some embodiments, the accelerometer is arranged close to the cutting edge while the strain gauge is arranged where the tool bar is susceptible to the largest strain. In some embodiments, low frequency vibrations of the cutting edge are estimated based measured strain, high frequency vibrations are estimated based on measured acceleration, and medium frequency vibrations are estimated based on output from both sensor types.
B23B 25/06 - Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
B23B 27/00 - Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
B23Q 17/22 - Arrangements for indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
A down-the-hole hammer drill bit retaining assembly to releasably retain a drill bit at a hammer arrangement of a percussion drilling apparatus. The retaining assembly comprises a drive sub and a retainer ring in which the drive sub comprises at least one indent to provide a fluid communication pathway for a flushing fluid extending over a radially outward facing surface of the retainer ring and into an internal region of the drive sub in contact with the inwardly projecting splines.
The invention relates to a mesh handler (1) for a mining machine (1000), comprising a generally U-shaped frame (2) for receiving and positioning a mesh (100) against a roof (110) portion of an underground tunnel; the frame (2) comprising at least one generally U- shaped rail (4, 6); and guide means (8) for guiding the mesh (100) along the rail (4, 6) in a direction substantially perpendicular to a longitudinal direction (A) of the mining machine (1000). Moreover the invention relates to a mining machine (1000).
E21D 11/15 - Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
E21D 11/40 - Devices or apparatus specially adapted for handling or placing units of linings for tunnels or galleries
Sensor module (6) for a tool holder (1) for a cutting tool (10), wherein, when the sensor module is arranged to the tool holder (1) having a cutting tool (10) connected thereto, an axial portion (13) of the cutting tool is positionable in a predefined rest position with respect to the sensor module, characterized in that the sensor module comprises at least one position sensor (7, 14, 15, 16, 17, 21), wherein, when the sensor module is arranged to the tool holder having a cutting tool connected thereto, the position sensor is located radially spaced from the axial portion of the cutting tool for measuring deflection of the cutting tool with respect to the rest position.
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
B23B 31/00 - Chucks; Expansion mandrels; Adaptations thereof for remote control
B23B 49/00 - Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centring devices for holes to be bored
A drive mechanism for an inertia cone crusher comprising a drive transmission (55) to rotate an unbalanced mass body (30) within the crusher and to cause a crusher head (16) to rotate about a gyration axis at a tilt angle formed by an axis of the crusher head relative to the gyration axis. A torque reaction coupling (32) is positioned in the drive transmission between the mass body and a drive input component (42) and is elastically displaceable and/or deformable. In particular, the torque reaction coupling is configured to: i) transmit a torque from the drive input to the mass body and ii) to dynamically displace and/or deform elastically in response to a change in the torque resultant from a change in the tilt angle of the crusher head so as to dissipate the change in the torque to the drive transmission.
A torque reaction pulley (42) for an inertia cone crusher having an elastically deformable component (77,78) responsive to a change in torque through the drive transmission of the crusher due to rotation of an unbalanced weight (30) within the crusher.
A friction bolt assembly to frictionally engage a bore formed in rock strata. The assembly comprises an elongate tube and an expander mechanism acted on by an anchor mechanism via an elongate bar or cable. A retainer mechanism is mounted to act between the bar or cable and the tube to prevent ejection of the bar or cable from the assembly should the bar or cable break.
The invention relates to an extendable apparatus, in particular an extendable apparatus for a drill head. The invention further relates to a drill head comprising an extendable apparatus, and a method of operating a drill head. The extendable apparatus (50) comprises a base section (550) and a drive section (560); an extension section (650) and a functional section (660); the base section (550) and the drive section (560) being moveable with respect to the extension section (650) and the functional section (660) along a longitudinal axis (LA); the drive section (560) and the functional section (660) being rotationally rigid coupled to each other; the base section (550) and the extension section (650) being rotationally rigid coupled to each other; the drive section (560) and the functional section (660) being rotationally moveable coupled to the extension section (650).
A method to form a surface (53) on a metal work piece (50) comprising a first machining step of providing a turning insert (1) comprising a first cutting edge (11), a second cutting edge (12) and a convex nose cutting edge (10) connecting the first (11) and second (12) cutting edges, selecting a nose angle (a) formed between the first (11) and second (12) cutting edges to be less than or equal to 85°, The method comprises the further steps of adapting the second cutting edge (12) such that it forms a back clearance angle (?) of more than 90° in a feed direction (99), positioning all parts of the turning insert (1) ahead of the nose cutting edge (10) in the feed direction (99), rotating the metal work piece (50) around a rotational axis (A3) in a first direction, and moving the turning insert (1) in a direction parallel to or at an angle less than 45° relative to the rotational axis (A3) such that the first cutting edge (11) is active and ahead of the nose cutting edge (10) in the feed direction (99) and such that the surface (53) at least partly is formed by the nose cutting edge (10).
B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
36.
A METHOD OF PRODUCING A TUBE ARRANGEMENT, A TUBE ARRANGEMENT AND A FURNACE PROVIDED WITH SUCH A TUBE ARRANGEMENT
The present disclosure relates to a method of producing a tube arrangement, in which a first tube is joined with a second tube, both the first tube and the second tube being metal tubes. The present disclosure also relates to a tube arrangement comprising a first metal tube provided with a first outer threading in an end region thereof, a second metal tube provided with a second outer threading in an end region thereof, a first butt weld joining said end regions of the first and second tubes, and a sleeve provided on the outside of first and second metal tubes forming a thread coupling with the outer threading of the first and second tubes. The present disclosure also relates to a furnace comprising a chamber which is provided with a burner arrangement for generating heat. Said chamber is provided with a tube arrangement as defined hereinafter for conduction of a hot gas or steam through the furnace.
The invention relates to a cutter assembly (1) for an undercutting machine for cutting a rock workface and a method of assembling a cutter assembly. The cutter assembly (1) comprises a shaft (100) mountable on the machine with one end extending from the machine, and a cutter device (200) arranged in connection to the extended end of the shaft (100), wherein the cutter device (200) is connected releasably and rotationally rigid to the shaft (100) with a locking arrangement (800), wherein the locking arrangement (800) comprises a first locking device (300) arranged and adapted to transfer substantially axial loads, and a second locking device (400) arranged and adapted to transfer substantially radial loads.
E21C 25/16 - Machines slitting solely by one or more rotating saws, cutting discs, or wheels
E21C 27/12 - Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by acting on the vertical face of the mineral, e.g. by percussive tools
E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
38.
CUTTER ASSEMBLY WITH ROLLING ELEMENTS AND METHOD OF DISASSEMBLING
The invention relates to a cutter assembly (1) for an undercutting machine for cutting a rock workface and a method of disassembling a cutter assembly. The cutter assembly comprises a shaft supporting structure (10); a shaft (100) at least partly arranged within the shaft supporting structure; a cutter device (200) arranged on the shaft or the shaft supporting structure; a first rolling element (510) arranged between the shaft supporting structure and the shaft in floating or slidable manner in axial direction; a second rolling element (520) arranged between the shaft supporting structure and the shaft, wherein a line orthogonal to an outer surface of the second rolling element crosses the longitudinal axis (X) of the shaft at a centre plane of the first rolling element or within a range of +/- 25% of an axial extension of the first rolling element from said centre plane.
The invention relates to a mountable construction in the form of a deflection device for a belt for continuously conveying material and a method for deflecting a belt. The mountable construction (100) is in the form of a deflection device for a belt (500) for continuously conveying material, the mountable construction (100) comprises: a first support frame (1000) arranged in a first direction (1) and a second support frame (2000) arranged in a second direction (2); the support frames (1000, 2000) are coupleable with each other; the mountable construction further comprises first and second belt deflectors (121, 122; 231, 232, 233, 234) being arranged in connection to the support frames (1000, 2000), wherein the first belt deflector (121, 122) is arranged substantially vertically and the second belt deflector (231, 232, 233, 234) is arranged substantially horizontally; and the mountable construction includes a connection module (2100) for coupling the second support frame (2000) with the first support frame (1000), the connection module (2100) being adapted such that the second support frame (2000) is coupleable to the first support frame (1000) at a variable or different horizontal angle (Z).
B65G 39/16 - Arrangements of rollers mounted on framework for aligning belts or chains
B65G 15/60 - Arrangements for supporting or guiding belts, e.g. by fluid jets
B65G 21/14 - Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively- movable parts; Devices for moving framework or parts thereof to allow adjustment of length or configuration of load-carrier or traction element
A raise boring head for rotary boring in rock having a main body mountable at a drive shaft in which a mount face provides a supporting surface for a plurality of saddles that mount, in turn, respective roller cutters. At least one guide block is attached to the main body to protect upwardly from the mount face and comprises at least one guide face to facilitate the transport of cut material away from the mount face.
E21B 10/28 - Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
E21B 7/28 - Enlarging drilled holes, e.g. by counterboring
E21B 10/10 - Roller bits with roller axle supported at both ends
41.
THREADED COUPLING END FOR A PERCUSSION DRILL STRING COMPONENT
A threaded coupling for a drill string component having a body on which is formed a thread. A reduction in stress concentrations and a resistance to bending moments are achieved at the thread by reducing a thread depth at at least one axial end (300) of the thread and by adapting an endmost flank of a crest or root of the thread at an endmost helical turn.
An elongate component, such as a drill rod or adaptor, to form part of a drill string having a shoulder contact male spigot coupling. The male spigot comprises a non-threaded shank and a threaded section in which an axial length of the non-threaded shank is provided at a predetermined minimum relative to an outside diameter of the spigot at the threaded section.
The invention relates to a control unit (1) for controlling machine functions of a mining machine (100), in particular of an underground mining machine, tunneling machine or bolting rig, having a flameproof housing (9) having at least one fluid inlet (27) and at least one fluid outlet (29), and a plurality of fluid control valves (59, 61, 63) respectively communicating with the at least one inlet and outlet. In particular, the fluid control valves are formed inside at least one valve monoblock (37, 39, 41 ), said monoblock comprising a plurality of distinct fluid passages.
The invention relates to a multi-functional connector for connecting a functional drill element to a drill head (2000), in particular to an extendable cylinder (10) of a drill head. The multi-functional connector (10000) comprises a first connecting element (1 100) with a first receptacle (1 1 10), a second connecting element (1300) with a second receptacle (1310), a retainer element (1200) with a retainer opening (1210). The first receptacle (1 1 10) has at least two driving surfaces (1 1 1 1 ) for transferring a torque in a first direction, the second receptacle (1310) has at least two driving surfaces (131 1, 1312) for transferring a torque in a first direction and in a second, opposite direction, and the retainer element (1200) has at least one retaining section to prevent a movement of a second functional drill element relative to the second connecting element in a retracting position of the second functional drill element.
F16B 21/00 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding it; Stud-and-socket releasable fastenings without screw-thread
A cutter 100 for a boring head (106) having a shaft (102) mountable at a saddle (104). A roller body (101) is rotatably mounted about the shaft (102) via bearings (401,402) housed at a cavity (219) located radially between the shaft and the roller body. A lubrication fluid is configured to flow internally within the shaft (102) via a first and second passageway (201,202). An elongate overflow chamber (203) is provided in fluid communication with the passageways to receive thermally expanded lubrication fluid from the cavity (219).
A rock drill button, comprising a body made of sintered cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase comprising Co, wherein the cemented carbide comprises 4-12 mass% Co and balance WC and unavoidable impurities. The rock drill button is characterized in that said cemented carbide also comprises Cr in such an amount that the Cr/Co ratio is within the range of 0.043-0.19, and that the WC grain size mean value is above 1.75 µm.
C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
The invention relates to a transport unit, a material transfer structure and a material transfer unit for a mobile haulage arrangement for continuously conveying fragmented material in a conveying direction. The invention further relates to a mobile haulage arrangement and a method for continuously conveying fragmented material in a conveying direction. The transport unit (100) comprises two ground transportation structures (110, 120, 210, 220); a support frame (130, 230) suitable for fitting a belt (10) of an enclosed belt conveyor (20) thereunder; the ground transportation structures comprising at least one height adjustment device; wherein the support frame comprises at least one connector (160, 260), which is adapted for connecting a support structure (1000) thereto; and wherein the height adjustment devices (140, 150, 240, 250) are adapted to vary the position of at least a portion of the support frame in relation to the ground transportation structures.
B65G 15/60 - Arrangements for supporting or guiding belts, e.g. by fluid jets
B65G 15/08 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
B65G 41/00 - Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
E21F 13/02 - Transport specially adapted to underground conditions in galleries
48.
TRANSPORT UNIT, MATERIAL TRANSFER STRUCTURE, MATERIAL TRANSFER UNIT, MOBILE HAULAGE ARRANGEMENT METHOD
The invention relates to a transport unit, a material transfer structure and a material transfer unit for a mobile haulage arrangement for continuously conveying fragmented material in a conveying direction. The invention further relates to a mobile haulage arrangement and a method for continuously conveying fragmented material in a conveying direction. The transport unit (100) comprises two ground transportation structures (110, 120); a support frame (130) suitable for fitting a belt of an enclosed belt conveyor (20) thereunder; the ground transportation structures comprising at least one height adjustment device; wherein the support frame comprises at least one connector (160), which is adapted for connecting a support structure thereto; and wherein the height adjustment devices (140, 150) are adapted to vary the position of at least a portion of the support frame in relation to the ground transportation structures.
B65G 15/60 - Arrangements for supporting or guiding belts, e.g. by fluid jets
B65G 41/00 - Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
E21F 13/02 - Transport specially adapted to underground conditions in galleries
B65G 15/08 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
49.
SUPPORT STRUCTURE AND METHOD FOR SUPPORTING AN ENCLOSED BELT CONVEYOR
The invention relates to a support structure for supporting a belt of an enclosed belt conveyor between two transport units and a corresponding method. The support structure (1000) between two transport units (100) comprises a first end element (1100) with a main extension in a longitudinal direction (L11), a width extension in a width direction (W11) orthogonal to the longitudinal direction and a height extension in a height direction (H11) orthogonal to the longitudinal and the width direction, at least one guide assembly (30, 36) for engaging opposite longitudinal edges of a belt of an enclosed belt conveyor, a first telescopic element (1500) connected to the first end element, wherein an outer end (1101) of the first end element has a first end connector (1110) adapted to form a connection with a first transport unit.
B65G 41/00 - Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
B65G 15/60 - Arrangements for supporting or guiding belts, e.g. by fluid jets
E21F 13/02 - Transport specially adapted to underground conditions in galleries
B65G 15/08 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
50.
DRIVE ARRANGEMENT FOR BELT, MOBILE HAULAGE ARRANGEMENT, AND METHOD
The invention relates to a drive arrangement for driving a belt of an enclosed belt conveyor. The invention further relates to a mobile haulage arrangement for continuously conveying fragmented material in a conveying direction and to a method for driving a mobile haulage arrangement. The drive arrangement (2000) for driving a belt (10) of an enclosed belt conveyor comprises a conveyor drive assembly (2100) arranged to drive the belt (10) of the conveyor run (21) in the conveying direction, and a return drive assembly (2200) arranged to drive the belt (10) of the return run (22) in an opposite direction.
B65G 15/60 - Arrangements for supporting or guiding belts, e.g. by fluid jets
B65G 15/08 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
B65G 23/00 - Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
B65G 41/00 - Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
E21F 13/02 - Transport specially adapted to underground conditions in galleries
A drill rod comprising a main length and a threaded male spigot coupling projecting axially from a first end o fthe main length and a threaded female coupling provided at a second end o f the main length. The axial length o fthe male and female threads are maintained to a minimum so as to maximise the drilling length o fthe rod.
The invention is directed to a manipulator (300) for providing drilling expendables (201, 203, 205) to a drill head (101) of an underground drill rig, said manipulator (300) having a gripper, said gripper being adapted to selectively grip and release the drilling expendables (201, 203, 205), and said manipulator (300) being adapted to move the gripper between a first position facing a supply magazine and a second position facing the drill head (101), wherein the manipulator (300) is adapted to automatically take and return expendables (201, 203, 205) from and to the magazine and drill head (101). The invention is further directed to a supply device for proving expendables (201, 203, 205) to a drill head (101) of an underground drill rig (100) having a supply magazine, and to an underground drill rig (100) as well as an underground mining vehicle (1).
An elongate capping (102) to support cross-tensioned or pre-tensioned screening media (100) at a screen deck. The capping (102) comprises a pair of arms (105) to grip a carrier beam (101) of the screen deck and a head (104) attached to the arms (105) via a neck (301) wherein the head (104) comprises flexible widthwise extending flanges (302) that are configured to bend and compress towards the arms (105) to support the screening media when mounted on the head (104) under tension.
F16B 2/22 - Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material
A crusher unit comprising a mainframe that supports a crusher suitable for crushing bulk material. The unit comprises a primary motor carried by the frame to drive a crusher via a first drive belt extending around a first drive pulley and a first flywheel mounted at the crusher. The unit further comprises a secondary motor carried by the frame to provide a secondary drive to the crusher via a second drive belt extending around a first or a second flywheel mounted at the crusher and a second drive pulley.
The invention relates to a device (1) for the installation of rock bolts (3a, 3b), comprising a supporting structure (7), and first and second bolting units (9a, 9b) mounted to the supporting structure (7), wherein each bolting unit (9a, 9b) is configured for drilling an installation hole (5a-5k) and/or for installing a rock bolt (3a, 3b) into a rock face (11), wherein the supporting structure (7) is configured for rotatably moving the first and second bolting units (9a, 9b) about a common axis of rotation (13) and at least one actuator (15a, 15b) is mounted to the supporting structure (7) and configured for additionally moving at least one of the first and second bolting units (9a, 9b).
A cutting apparatus (100) suitable for creating tunnels or subterranean roadways and the like comprising: a main frame (102) having generally upward (300), downward (301) and side (302) facing regions; at least one arm (121) pivotally mounted via an arm pivot axis (401) aligned in a direction extending transverse including perpendicular to a generally upright direction relative to the upward (300) and downward (301) facing regions to enable the arm (121) to pivot relative to the main frame (102) in an upward and downward direction relative to the upward (300) and downward (301) facing regions; at least one arm actuator (122, 130) to actuate pivoting movement of the arm (121) relative to the main frame (102), a rotatable cutting head (128) mounted at the arm (121) rotatable about a head axis (402) orientated to extend substantially transverse to the arm pivot axis (401), a pair of crawler tracks (103) or a set of wheels allowing a forward and rearward movement of the cutting apparatus (100) over ground, and a set of floor engaging members (106, 115) mounted at the main frame (102), wherein the floor engaging members (106, 115) are extendable to provide a cutting mode of the cutting apparatus (100), in which the cutting apparatus (100) rests on the floor engaging members (106, 115), and are retractable to provide a non-cutting mode of the cutting apparatus (100), in which the cutting apparatus (100) rests on the pair of crawler tracks (103) or set of wheels, wherein the pair of crawler tracks (103) or the set of wheels define a plane inclined relative to the main frame such that upon changing from the cutting mode to the non-cutting mode the cutting head (128) is raised away from the ground.
E21D 9/10 - Making by using boring or cutting machines
E21C 27/24 - Mineral freed by means not involving slitting by milling means acting on the full working face
E21C 31/08 - Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for adjusting parts of the machines
E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
E21D 9/12 - Devices for removing or hauling away excavated material or spoil; Working or loading platforms
A cutting apparatus (100) suitable for creating tunnels or subterranean roadways and the like comprising:a main frame (102) having regions (300, 301, 302) facing in a first direction, a second direction opposite to the first direction and a third direction perpendicular to the first and second direction and to a lengthwise direction; first and a second arm (121) each pivotally mounted via a respective arm pivot axis (401) aligned in a direction extending transverse including perpendicular to the first and second direction to enable the first and second arms (121) to pivot independently of one another in the first and second direction, at least one first and second arm actuator (122, 130) to actuate independently pivoting movement of the first and second arms (121) relative to the main frame (102), and a rotatable cutting head (128) mounted at each of the first and second arms (121).
E21D 9/10 - Making by using boring or cutting machines
E21C 27/24 - Mineral freed by means not involving slitting by milling means acting on the full working face
E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
E21D 9/12 - Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Cutting apparatus (100) suitable for creating tunnels or subterranean roadways and the like comprising: at least one arm (121) pivotally mounted to the apparatus and adapted to pivot in an upward and downward direction; at least one arm actuator (122, 130) to actuate pivoting movement of the at least one arm (121); wherein the actuator (122) comprises: a drive motor unit (130) and a drive train (123) coupled to the drive motor unit,the drive motor unit and drive train being configured for selective operation in one of: a first operating mode in which a first pivoting velocity and first torque are transmitted to the at least one arm (121), or a second operating mode in which a second velocity and second torque are transmitted to the at least one arm (121), the first velocity being lower than the second velocity and the first torque being higher than the second torque.
E21D 9/10 - Making by using boring or cutting machines
E21C 27/24 - Mineral freed by means not involving slitting by milling means acting on the full working face
E21C 31/08 - Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for adjusting parts of the machines
E21D 9/11 - Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
E21D 9/12 - Devices for removing or hauling away excavated material or spoil; Working or loading platforms
59.
CUTTING APPARATUS USING A PLURALITY OF DRIVE MOTORS
A cutting apparatus (100) suitable for creating tunnels and subterranean roadways. The apparatus comprises at least one arm (121) pivotally mounted to the apparatus and adapted to pivot in an upward and downward direction; at least one arm actuator (122, 130) to actuate pivoting movement of the at least one arm (121) about an arm pivot axis (401); a rotatable cutting head (128) mounted at the at least one arm (121), the head (128) rotatable about a head axis (402) oriented to extend substantially transverse to the arm pivot axis (401), a drive motor unit (125) for supplying a drive power; and a cutter gear drive train coupled between the drive motor unit and the cutting head for transmitting the drive power to the cutting head, wherein the drive motor unit (125) comprises a plurality of drive motors, each drive motor being coupled to the drive train and supplying a portion of the drive power.
A gyratory crusher spider arm shield for releasable mounting to a spider arm. The shield is mounted in position above and around the spider arm via locating feet and is maintained in position by a fixating ring extending circumferentially around the spider arms and positioned at and above a perimeter of the spider.
A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher. The shield comprises a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.
A cutting apparatus (100) suitable for creating tunnels and subterranean roadways. The apparatus comprises independently pivoting supports (120) that each carry a respective independently pivoting arm (121) and a rotatable cutting head (128). Each cutting head via the supports and arms, is configured to slew laterally outward in a sideways direction and to pivot in a vertical upward and downward direction. The supports and arms are mounted on a linear moving sled (104) carried by a main frame (102).
The invention relates to a cutting unit (1) for use with a cutting apparatus (100) suitable for creating tunnels or subterranean roadways and the like, comprising a cutting arm (121) configured for pivotal movement around at least one pivot axis (5), a cutting head (128) mounted to the cutting arm (121), the cutting head (128) comprising at least one rotatable cutting element (127) for detaching material from a rock face, and a clearing arrangement (11) mounted to the cutting arm (121), wherein the clearing arrangement (11) comprises a clearing blade (13) for pushing detached rock material onto a loading table (41) of the cutting apparatus (100), wherein the clearing blade (13) is guided by a first guiding mechanism allowing for a free movement of the clearing blade (13) in a first direction (15).
A mobile bulk material processing apparatus having at least one material processing unit mounted at a hanging assembly capable of being connected or disconnected from the mainframe of the machine via a semi- automated process using a plurality of powered actuators acting on first and/or second couplings.
A rotary drill tool for cutting rock comprising a set of journal legs that rotatably mount rotating cone shaped cutters via respective bearing assemblies (204, 205, 206). A fluid supply passageway (501) extends through the journal legs to provide a cooling and cleaning fluid to the bearings in use. A by-pass passageway (900) extends through a base region of a spindle (200) that mounts each cone cutter and is provided in direct fluid communication with the supply passageway to divert the fluid to a base region of the bearing assembly.
A rotary drill tool for cutting rock having at least one journal leg (105) mounting a spindle (200) and a respective rotary cone cutter (103). The spindle comprises a plurality of fluid distribution passageways (302, 400) to provide a supply of a cooling and cleaning fluid to the bearing assembly. Vent holes are provided through the cutter to allow an exhaust flow of fluid and an annular seal (509, 510) is provided at a base region of the spindle to maintain a positive fluid pressure within the cutter cavity to prevent dust and dirt ingress.
A frictional bolt 40 for frictionally engaging the internal surface of a bore 32 drilled into a rock strata. The friction bolt 40 includes a circular tube 42 which is split longitudinally, and which has a leading end and trailing end and an expander mechanism within the tube towards the leading end. An elongate bar or cable 47 is disposed within the tube 42 and extends between the expander mechanism at one end and an anchor arrangement at the other end. A ring 43 is welded to the trailing end of the tube 42 and the bar or cable 47 extends through the ring 43 into connection with the anchor arrangement. A restrainer member 35 is disposed within the tube 42 adjacent the ring 43 and extends at least partially about the bar or cable 47 and is in engagement with the bar or cable 47. The tube 42 has a weakened region HAZ adjacent the ring 43 and restrainer member 35 extends longitudinally within the tube 42 past the weakened region HAZ in the direction of the leading end of the tube 42. The restrainer member 45 includes a projection 38 that projects through the longitudinal split of the tube 42 for engagement with the facing wall of the bore 32.
A folding hopper for a bulk material processing machine. The hopper comprises walls that are configured to pivot upwardly and downwardly and to interlock when raised to their uppermost use positions. Interlocking of the wall is achieved exclusively via interlocking hook shaped flanges fixed rigidly to end edges of the hopper walls.
A percussive rock drill bit having a head (100) and a shank (101) in which a plurality of flushing grooves (107) extend radially outward and axially rearward from a front face (103). The flushing grooves are configured to optimise the axially rearward flow of rock particles and fines entrained in the flushing fluid. In particular, each groove is generally convex relative to a longitudinal axis (102) of the drill bit and is declined continuously relative to the axis from a first groove end to a second groove end.
A quick release down-the-hole (DTH) hammer drill bit assembly (100) in which a drill bit (105) is releaseably retained at a drive transmission component (drive sub) (110) via a retaining sleeve (123) and respective retaining formations to axially couple and lock the drill bit at the assembly. In particular, the drill bit is retained exclusively at the assembly via retaining formations at the drive sub, the sleeve and the drill bit without a requirement for additional retaining rings that would otherwise axially lock the drill bit at the drive sub.
A gyratory crusher main shaft assembly in which an axially upper region (113) of the main shaft comprises a tapered conical section with a protective sleeve friction (124) fitted over the cone. To facilitate mounting and dismounting of the sleeve (124), at least one groove (121) is indented within a radially external facing surface of the main shaft at the region of the cone to allow fluid to be introduced under pressure to the region between the sleeve and the cone.
A gyratory crusher comprising a spider (114) supported at a top shell (101), the spider having a pair of spider arms (110) protected by respective arm shields (120). The shields are conveniently mounted and dismounted at the respective arms via a locking flange (210) and notch (202) and lug arrangement to avoid attachment by welding or attachment bolts.
A rock drilling shank adaptor comprising an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The flushing hole is optimised to reduce the likelihood of fracture at the wall of the adaptor and in particular comprises straight sections at axially forward and rearward most regions of the hole.
An elongate drill component (20; 120) for percussive drilling comprising a female threaded end (21) having an outer diameter (Dot), a male threaded end (22), a central section (27) between said ends having an outer diameter (Doc) and wherein the outer diameter of the female threaded end is larger than the outer diameter of the central section. A through-going flushing channel comprising a central flushing channel (28;128) having a diameter (Dic) and thread flushing channels (29;129) having a diameter (Dit). The ratio of an elastic section modulus of a threaded joint (31) measured when the female threaded end is connected to the male threaded end of an identical component to an elastic section modulus of the central section (27), St/Sc, is more than 1.5 and in that a ratio of the diameter of the central flushing channel to the outer diameter of the central section, Dic/ Doc is between 0.45 and 0.95.
Mobile bulk material processing apparatus having a main frame to support a material processing unit. A conveyor extends from the main frame and is mounted on a pivot joint to allow the conveyor to slew relative to the main frame, the pivot joint being positioned above the conveyor that is suspended below a region of the main frame.
B65G 21/12 - Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively- movable parts; Devices for moving framework or parts thereof to allow adjustment of position of load-carrier or traction element as a whole
A mobile bulk material processing apparatus (100) having a main frame (102) comprising a pair of opposed beams (108) that are spaced apart in a widthwise direction across the apparatus. The beams (108) are arranged to receive at least part of a conveyor (114) to protect the conveyor in a raised transport position.
A gyratory crusher topshell assembly in which a spacer (filler) ring is mounted radially intermediate a topshell and an outer crushing shell. The spacer ring is locked axially at the topshell via a shape profile of the mating surfaces of the spacer ring and the topshell. Additionally, the spacer ring is rotationally locked at the topshell via contact between abutments extending between the spacer ring and the topshell.
A gyratory crusher outer crushing shell and a crushing shell assembly. The crushing shell comprises a radially inward facing crushing surface and a radially outward facing mount surface provided with radially outward projecting contact regions to contact the topshell or an intermediate spacer ring. A ledge or groove having an abutment face is positioned at or axially above the upper contact region to positionally support a sealing ring for positioning between the crushing shell and the topshell or intermediate spacer ring.
A gyratory crusher crushing shell (105,106) having a mount surface (118) for contacting a support region of the crusher and a crushing surface (117) to contact material to be crushed and passing through the crushing zone (104). A plurality of wedges (127) project radially from the crushing surface, the wedges being spaced apart in a circumferential direction around the axis to define channels (200) extending axially between the wedges.
Drill rod handling apparatus configured to feed rods to and from a drill string created by a drill rig. The apparatus comprises a gripper unit configured to contact and hold a rod to be transported to the drill rig and an alignment tool mounted at the gripper unit to provide correct mating of the rod ends during coupling.
Method and apparatus for disconnecting an end rod (115) from a drill string (100) coupled together by a threaded connection (604, 605). Rod handling apparatus (102) comprises a gripper unit (106) having a 'floating'sled (206) with a sensor unit (208) configured to monitor relative axial position of the sled relative to a frame (205) of the gripper unit to determine a decoupling of the threaded connection and a separation of an end rod from the drill string.
Drill rod gripping apparatus (106) to grip and impart rotational motion to a drill rod (115). A sled (206) is axially mounted at a frame (205) and comprises first and second jaws (301, 302) moveably mounted at the sled to allow a substantially linear lateral movement across the sled to and from one another. A plurality of rod engagers (400, 401) are mounted at each jaw with at least one of the engagers comprising an abrasive surface (703) formed from a coating to increase the frictional force between the drill rod and the gripping apparatus.
A lockable overshot assembly for use in a wireline spearhead system for lowering and retrieving inner tube assemblies and other tools and equipment from a downhole location includes a pair of lifting dogs pivotally mounted to an overshot head on the lockable overshot assembly and configured for latching a spearhead. A locking arrangement mounted into the elongated body and engagable within the lifting dogs such that in a locked state the lifting dogs are in latched position and, in an unlocked state, allows said lifting dogs to move to the release position. The locking arrangement is a pin which can be moved laterally to be between the latching dogs to prevent them moving to the release position.
Screening media of a vibrating screen for screening fractions of stone or gravel. The screening media is formed of ribs (2, 5, 10) extending from one end of the screening media to the opposite end. Pins (3, 6) projecting perpendicular from the ribs (2, 5, 10) are placed on opposite sides of the ribs (2, 5, 10). Each pin (3, 6) ends at a distance from the adjacent rib (2, 5, 10). The dimension and placement of the pins (3, 6) are such that there will be formed a continuous aperture between two adjacent ribs (2, 5, 10). Each aperture is formed of a number of rectangular screening areas (12, 13, 14) of identical size. Each screening area (12, 13, 14) is placed perpendicular to each adjacent screening area (12, 13, 14) and end areas of adjacent screening areas (12, 13, 14) coincide.
A gyratory crusher topshell (100) and topshell assembly comprising an outer crushing shell (1000) and optional intermediate spacer ring (400). The topshell has a radially inward facing surface (207) that is divided into a plurality of regions including an upper (203) and lower (201) mount region axially separated by an intermediate annular rib (204). The rib enables the topshell to be compatible with a variety of different sized and shaped concaves optionally using an intermediate spacer ring without the need for a backing compound.
A gyratory crusher topshell and topshell assembly comprising an outer crushing shell and optional intermediate spacer ring. The topshell has a radially inward facing surface that is divided into a plurality of regions including an upper and lower mount region axially separated by an intermediate annular rib. The rib enables the topshell to be compatible with a variety of different sized and shaped concaves optionally using an intermediate spacer ring without the need for a backing compound.
Crasher belt tensioning apparatus for mounting at a crusher and in particular a mobile crushing unit. The belt tensioning assembly comprises a base frame that mounts a moveable swing arm via a plurality of non-rigid mountings to provide vibration and shock absorption during use. A variable belt tension setting is achieved via a linear actuator operating between the swing arm and the base frame to change the relative position, of a tension pulley in contact with the drive belt.
A gyratory crusher hydraulic pressure relief valve (20) comprises a hydraulic fluid vestibule (54), which is adapted to be fluidly connected to a hydraulic fluid space (24) of a gyratory crusher (2), a logic element (72) which is adapted for dumping hydraulic fluid from the hydraulic fluid space (24) and which comprises a plunger (74) which has a first plunger surface (76) and a second plunger surface (78), and a control pipe (56) which is adapted for fluidly connecting the second plunger surface (78) to the hydraulic fluid vestibule (54). A supply orifice (66) restricts the flow of hydraulic fluid from the vestibule (54) towards the second plunger surface (78) to make the time TC it takes for the logic element (72) to switch from open position to closed position exceed the time TF it takes for a closed side setting position of the crusher (2) to make one full round.
A gyratory crusher spider arm shield (120) for releasable attachment to a spider arm (110). The shield comprises a main body (121) having an underside foot (400) for engaging onto an upper region of the arm. The secure attachment is provided by cooperation between an attachment element (207, 403) that extends radially inward from an outermost end (206) of the shield and a mount guide (202) provided at sidewalls (122) of the shield that extend laterally each side of the spider arm.
E21B 25/02 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
An overshot tool for releasable connection to a head assembly as part of a core barrel drilling apparatus. The overshot tool comprises a primary engaging portion and a secondary engaging portion and is configured for the automated coupling and decoupling to a head assembly via selected engagement of the head assembly by the engaging portion. The overshot tool is configured to both deliver and retrieve a head assembly from a latched position at a cutting end the core barrel.
A connector 100 and associated dynamic testing system 200 and method for testing rock bolts or rock anchors in situ. The connector is attached to a rock bolt/anchor and supports a hanging load via a shaft. The connector has a body of two halves 100a,100b retaining upper first 104 and lower second 116 connectors having respective curved surfaces 108,138. Each of the two halves has a curved inner surface 106,136 allowing limited relative rotational movement of the first and second connectors relative to the two halves when a load is applied. A load cell 132 and accelerometer 130 register the load applied to the rock bolt/anchor through the connector and any resulting movement of the rock bolt/anchor.
G01N 3/303 - Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force generated only by free-falling weight
E21D 21/00 - Anchoring-bolts for roof, floor, or shaft-lining protection
This invention relates to a handling means for drill rods, a drill rod support thereof, a method of operation for the handling means, and a drill rig employing the handling means and the drill rod support. The drill rod support comprises a socket configured to receive a portion of a length of a drill rod, and clamping means disposed within the socket and movable between clamping and release positions with respect to the drill rod.
E21B 19/087 - Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods by means of a swinging arm
E21B 19/20 - Combined feeding from rack and connecting, e.g. automatically
A machine (10) for installing cable bolts, including a drill (11) for drilling a bore (12) into a rock wall (13), a grout delivery system (15) for delivering grout (16) into the bore (12), a cable dispensing arrangement (24) for dispensing cable (23) into the bore (12), an attachment device (30) for attaching a bore anchor (21) to the leading end (22) of the cable (23) prior to the cable bolt being fed into the bore (12), and a severing device (35) for severing the cable (23) to form a trailing end (40). A method of installing a cable rock bolt into a bore is also provided.
A crusher wear resistant liner (103) for positioning at a crusher bottom shell (100). The liner comprises a plurality of modular wear resistant plates (200, 201) mountable at an inside surface (102) of the bottom shell and positioned side-by-side to surround and protect the bottom shell interior. To prevent independent dislodgement of each plate and liner, respective interengaging formations (205, 206) are provided at each plate to contact at least one adjacent plate of the assembly to arrest any unintentional downward movement in the event that the primary fixings become ineffective. To form a connecting bridge that interlocks the plates, the interengaging formations (205, 206) of some plates comprise a flange extending from a rear face plate to overlay a rear face of adjacent plate. Each of the interengaging formations are formed as a panel-like bodies mounted at the rear face of the wear plates.
A method of interconnecting a drill rod (11') with a drill string (11) by means of a threaded connection (112, 111') is disclosed. The method comprises axially aligning the drill rod (11') with the drill string (11), rotating the drill rod (11') in a disengagement rotational direction of the threaded connection (112, 111'), identifying a rotational position of the drill rod (11') where thread ends of the rod and the drill string (11) slip over each other, stopping said rotating within a predetermined period of identifying the rotational position, and rotating the drill rod (11') in an engagement direction, such that the drill rod (11') is interconnected with the drill string (11) by the threaded connection (112, 111').
An earthmoving equipment bucket corner (10) has a first portion (12), a second portion (14) and an intermediate portion (16) between the first and second portions, all in different planes to one another. A boss or lug (18) can be provided on the leading edge of the intermediate portion. The intermediate portion is angled relative to both the first and second portions, which alleviates the load stresses otherwise created in a traditional 90° corner. The first portion can have a wall (34) with a taper or bevel (36) towards a forward edge. The second portion can have a wall (20) with a leading flared wall portion (22) that widens the corner at the front (28). The intermediate portion is preferably at an included angle a, /3 of around 120° to 170° with respect to the respective walls of the first and second portions.
A connection assembly (30) for mounting a ground engaging tool (GET) to earthmoving equipment includes a body (32) into which is received a resilient means (34), a force applying member (36), a locking member (38) with an O-ring seal (40) to be received in an annular channel (42) around the locking member, a locking member stop (44) received in a hole (46) in the locking member, a body stop (48) to be fitted into an aperture under the body. The locking member stop (44) prevents the force applying member from rotating within the body when the bolt is rotated and advances the piston by threaded engagement. Embodiments of the present invention need not require a spacer (50).
A gyratory crusher main shaft sleeve (114) for friction fitting over an uppermost end (113) of a crusher main shaft (107). The sleeve comprises an elongate axial wall (209) for positioning in contact with an outward facing surface (202) of the main shaft. The axial wall comprises a thickness that decreases in a direction from a second upper end (208) to a first lower end (207) wherein the internal facing surface (200) of the sleeve extends transverse to a longitudinal axis (115) of the sleeve so as to taper inwardly towards the axis in a direction from the first to the second end.
patents
