The invention relates to a structural element (11) for a security structure, having a hollow part (10) that has a receiving region (15) that is delimited, at least in some regions, by means of one or more wall elements (12, 13, 14) of the hollow part (10), wherein the receiving region (15) receives a composite material, wherein the composite material has hard material particles (16), wherein at least some adjacent hard material particles (16) are connected to one another by means of a solder material (16.1) in the region of connection portions (16.2), and wherein at least some adjacent hard material particles (16) are arranged, at least in some regions, in a manner spaced apart from one another, thereby forming spacing regions. For this structural element (11) there is a high degree of resistance to attack by drilling and severing tools and simultaneously a relatively low inherent weight if it is provided that at least some of the spacing regions are filled by means of a connection layer (16.2), wherein the connection layer (16.2) connects the adjacent hard material elements (16) to one another in an integral manner.
B22F 7/04 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers with one or more layers not made from powder, e.g. made from solid metal
B23K 35/32 - Selection of soldering or welding materials proper with the principal constituent melting at more than 1550°C
E05B 15/16 - Use of special materials for parts of locks
The invention relates to a cemented carbide material, in particular hard metal, with 80-95 wt.%, preferably with 90-94 wt.%, hard material particles, in dispersed form, having or consisting of tungsten carbide, and a binder phase, wherein the binder phase has cobalt as metal binder material, wherein the proportion of metal binder material in the cemented carbide material is 4-20 wt.%, preferably 5-10 wt.%, wherein the particle size distribution of the hard material particles is such that the ratio (d90 – d10)/d50 is smaller than 1.5, wherein the d50 value of the particle size distribution of the hard material particles is greater than or equal to 3 µm and wherein the particle diameter of the maximum value of the particle size distribution of the hard material particles is greater than the particle diameter of the median value (d50 value) of the particle size distribution. Such a cemented carbide material is characterised with respect to the prior art by better wear resistance and breaking strength.
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
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
C22C 1/051 - Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
The invention relates to a plough unit (1) for use with a plough, wherein the plough unit (1) has a unit body (1.1) having a discharge side (2), a rear side (3) opposite the discharge side, and a bottom side (4) that connects the discharge side and the rear side, the unit body having wear protection element receptacles (10) in which wear protection elements (20) made of hard material are received. Incorporating wear protection element receptacles on the bottom side and designing the wear protection elements (20) as pins achieves a simple design, low production costs, and high wear resistance.
The invention relates to a stripping solution (14), to a method (41), and to a device (10) for a wet chemical removal of a PVD or CVD titanium nitride layer from a hard metal support element using such a solution (14). According to the invention, the stripping solution (14) consists of: - 70-85 wt.% of water, - 1-10 wt.% of a hydrogen compound which is not water (e.g. hydrogen peroxide), and - 10-20 wt.% of an ammonium salt (e.g. ammonium bifluoride), wherein the stripping solution (14) has a pH value of less than 7, preferably less than 5, at room temperature. Additionally, a proportion of 1-3 wt.% of a carboxylic acid (e.g. citric acid) can be added to the solution (14).
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
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
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
6.
METHOD FOR PRODUCING A CEMENTED CARBIDE MATERIAL HAVING A REINFORCED BINDER PHASE
The invention relates to a cemented carbide material, in particular a hard metal, comprising 70-95 wt.%, preferably 80-95 wt.%, tungsten carbide in dispersed form, and a binder phase, the binder phase comprising metallic binder material, the metallic binder material comprising Co, the binder phase comprising intermetallic phase material and/or the dissolved elements Ni and Al, said intermetallic phase material, if present, being formed according to the structural formula (M,Y)3 (Al,X), where M = Ni, Y = Co and/or another constituent, and X = tungsten and/or another constituent, said binder phase having the following chemical element composition: Ni > 25 wt.%, Al > 4 wt.%, and the remainder Co and dissolved binder constituents, for example W and/or C. Such a cemented carbide material is characterised by a high resistance to wear and at the same time a high breaking strength.
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
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
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
The invention relates to a cemented carbide material, in particular a hard metal, comprising 70-95 wt.% tungsten carbide in dispersed form, and a binder phase, the binder phase comprising metallic binder material and intermetallic phase material, the proportion of metallic binder material in the cemented carbide material being 2-28 wt.%, the proportion of intermetallic phase material in the cemented carbide material being 2-28 wt.%, the metallic binder material comprising Co, the intermetallic phase material being formed according to the structural formula (M,Y)3 (Al,X), where M = Ni, Y = Co and/or another constituent, and X = tungsten and/or other constituent. Such a cemented carbide material is characterised by particularly good resistance to wear.
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
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
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
The invention relates to a method for processing hard metal, more particularly hard metal scrap, wherein: - the hard metal is alloyed with a low-melting alloying metal in a reaction chamber of a reactor (10) while heat is applied; - the alloying metal is then converted into a vapor phase in the presence of inert gas; - subsequently the alloying metal is at least partially condensed in a condensation step; and - in the reaction chamber, there is a positive pressure with respect to ambient pressure at least during the condensation phase. More particularly, according to the invention, the inert gas is continuously supplied to the reaction chamber from an inert gas source (60) outside of the reaction chamber via an inert gas supply line (61) at least temporarily during the condensation phase, and the inert gas is discharged from the condenser (30) into the environment at least in phases during the condensation phase. In this way, the plant complexity can be considerably reduced in comparison with hard-metal decomposition methods known from the prior art.
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
F27B 14/04 - Crucible or pot furnaces; Tank furnaces adapted for treating the charge in vacuum or special atmosphere
F27B 17/00 - Furnaces of a kind not covered by any of groups
F27D 7/02 - Supplying steam, vapour, gases, or liquids
The present invention relates to a milling pick, in particular a straight shank pick with a pick head (40) comprising a pick bit (30) made of hard material as the cutting element, wherein a pick shaft (10) is further coupled directly or indirectly to the pick head (40), a wear protection disk (20) with a passage, in particular a bore, slipped on the pick shaft (11), wherein the wear protection disk (20) on the side facing the pick head (40) comprises a countersurface (23) designed to abut a support surface (41) of the pick head (40), the wear protection disk, away from the countersurface (23), comprising a bottom support surface (21) that is parallel to the countersurface (23), and having a disk thickness (d) between the countersurface (23) and the support surface (21), the milling pick being characterised in that the ratio between the diameter of the pick shaft (10) in the area of the passage (25) and the thickness (d) of the disk ranges from 1.5 to 3.75, preferably from 2 to 3.
E21C 35/197 - Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
B28D 1/18 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
The invention relates to a milling pick, in particular a round-shank pick, having a pick head and a pick tip, consisting of a hard material, wherein the pick tip has a fastening region, in which it is joined to the pick head, wherein the pick tip has a concave region that extends in the direction of the longitudinal centre axis of the pick tip, and wherein the concave region has an elliptical contour. In order to achieve a better load capacity in such a milling pick, the invention provides that the ellipse that creates the elliptical contour is arranged such that the major half-axis of the ellipse and the longitudinal centre axis of the pick tip enclose an acute angle.
The invention relates to a milling pick, in particular a straight shank pick with a pick head (40) and a pick bit (30) consisting of a hard material, wherein the pick bit (30) comprises a fastening region where it is connected to the pick head (40), the pick bit (30) comprises at its end opposite the pick head (40) in the longitudinal direction an end section (39) located around the pick bit (3) and comprising a tapering section (39.1) and an end cap (39.2), wherein the tapering section (39.1) has a maximum first radial extension (e1) in a first end region facing the pick head (40) and a maximum second radial extension (e2) in its end region away from the pick head, and wherein the end cap (39.2) that forms the free end of the pick bit (30) is coupled to the tapering section (39.1). According to the invention, improved wear properties of the milling pick are obtained when the end cap (39.2) is formed by a spherical dome having a base circle with a diameter (306), and the ratio between double the maximum first extension (twice e1) and the diameter of the base circle (306) ranges between 1.25 and 2.25.
The invention relates to a cultivator for an agricultural soil processing machine, comprising a base part which has a cutting element on a cutter support. The base part has at least one screw receiving area for securing to a support, in particular a tine of the agricultural soil processing machine. The screw receiving area is designed as a blind hole with an inner thread and is recessed into a cultivator support surface aligned opposite the tool advancing direction of the cultivator, or the screw receiving area is designed as a through-bore with an inner thread and is covered by at least one wear protection element in the tool advancing direction. The cultivator is characterized by reduced wear.
The invention relates to a pick, in particular a round-shank pick, comprising a pick head and a pick shaft, comprising a support element which has a seat surface on the lower face and a centering projection that protrudes beyond the seat surface. The centering projection has a centering surface which runs at an angle to the central longitudinal axis of the pick and which transitions directly or indirectly into the seat surface, and the support element is interrupted along the central longitudinal axis by a receiving bore with an internal diameter D for receiving the pick shaft. A collar height, which is measured in the direction of the central longitudinal axis between a centering projection end facing away from the seat surface and the seat surface or between the end of the centering projection and an inner termination of an opening recessed into the support element relative to the seat surface, is designed such that the ratio between the internal diameter D, the receiving bore of the support element, and the collar height is smaller than 8 and/or the collar height is greater than an axial clearance of the pick mounted in a pick holder. The pick is characterized by reduced wear.
The invention relates to a machining tool (20) for comminuting wood, rock, or similar biological or mineral materials, comprising a base part (21) and a mounting part (27) which is connected directly or indirectly to the base part and which has or supports a cutting element (32). The base part (21) has a bearing receiving area (26) for forming a pivot bearing together with a bearing (12) of a working machine. Such a machining tool can be reliably secured to a rotor of a working machine with little complexity if the mounting receiving area (26) is open laterally in the radial direction in order to form an access for the bearing (12), and the open side can be blocked at least in some areas by means of a securing device (50).
The invention relates to a scraping device for scraping carried material from a moving tool surface of a tool of an agricultural or forestry machine, in particular a plough disk of a seeding disk coulter, wherein the scraping device has a main body that is elastic at least in some regions, by means of which main body at least one scraping edge or at least one scraping surface of the scraping device can be pressed against the tool surface of the tool, which tool is guided past the scraping device. According to the invention, the scraping edge or the scraping surface is formed by at least one anti-wear element, which is connected by means of a welded joint to a surface of the main body of the scraping device that is oriented toward the tool surface. The scraping device is characterized by low wear.
The invention relates to a tool having a hard material for processing mineral and/or plant-based material layers, in particular of traffic areas and/or agricultural floor areas or combinations thereof with one another. According to the invention, at least one part of the cutting element is formed or covered with a hard material containing fullerite or formed from fullerite. The wear resistance of the tool can be significantly improved by the extremely hard material.
The invention relates to a cutting body having at least one mallet and having a bearing receptacle for connecting the cutting body to a machine-side receptacle, in particular a quick-release axle. Provision is made here for at least one mallet holder of the cutting body to be configured to be connected directly or indirectly to the machine-side receptacle, and for a force- and/or form-fitting connection that acts radially and in the circumferential direction with respect to the bearing receptacle and is releasable or does not act at least in an axial direction of the bearing receptacle to be arranged between the mallet and the mallet holder. The cutting body allows the mallet to be exchanged easily.
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragments; Mincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
The invention relates to a tool (10, 20) for fastening on a machine, in particular a screen machine, a road groover, or similar, the tool having a tool body (12, 50, 53), on which a functional unit (11, 11.1, 11.2, 11.4, 40, 30) comprising at least two materials of different damping properties is fastened, one material being a mechanically resistant material (11, 11.1, 11.2, 31, 32) and an intermediate material (11.4, 42, 43) being provided between the mechanically resistant material (11, 11.1, 11.2, 31, 32) and the tool body (12, 50, 53). An improved wear resistance compared to the wear resistance known from prior art is achieved in that the modulus of elasticity of the intermediate material (11.4, 42, 43) amounts to 30 % of the modulus of elasticity of the mechanically resistant material (11, 11.1, 11.2, 31, 32).
B07B 1/46 - Constructional details of screens in general; Cleaning or heating of screens
B23P 15/28 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
B28D 1/18 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
The invention relates to a tool (20) for securing on a tool holder (30) of a machine tool for machining vegetable and/or mineral materials, comprising a tool body (200) which is equipped with a machining attachment that points in a tool feeding direction (V) and comprises a cutting region, in particular a cutting element (20.1), and on which a fitting element (50) for meshing with a mating element (60) provided on the tool holder (30) is formed on a support surface (22) facing the tool holder (30). The dependability and operational reliability when using a machine tool can be ensured if the fitting element (50) has at least two molded regions (51, 53) with different contour regions over the vertical course (x) of the fitting element with respect to the support surface (22).
B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragments; Mincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
The invention relates to a soil-working system for an agricultural soil-working machine, comprising a base element (2), which is designed to hold a bottom element (3), wherein the bottom element (3) has at least one cutting element (4), and comprising an injection element (5) for introducing substances into the soil material to be worked, wherein the soil-working elements are detachably or undetachably connected to a carrier element (6) of the soil-working machine, wherein the detachable connections form an interlocking and/or frictional connection and wherein the elements at least partially form a protection against abrasive wear in relation to each other.
The invention relates to a pick, in particular a round-shank pick, comprising a pick head and a pick shank, wherein the pick head consists of at least a base part and a cutting element, which is connected to the base part and is composed of a hard material, in particular hard metal, wherein the base part has a wear-resistant layer on the outer surface thereof at the connection to the cutting element, which wear-resistant layer covers at least one segment of the outer surface of the base part facing the cutting element and wherein an end face of the wear-resistant layer facing the cutting element is covered by the cutting element. According to the invention, the base part has an axially oriented cut-out for receiving a fastening segment of the cutting element, the base part has a counter surface facing the cutting element and extending around the cut-out, and the counter surface and the end face of the wear-resistant layer form a continuous flat surface. The invention further relates to two methods for producing such a pick. The pick formed in such a way has low abrasive wear.
E21C 35/183 - Mining picks; Holders therefor with inserts or layers of wear-resisting material
E01C 23/08 - Devices or arrangements for working the finished surface; Devices for repairing the surface of damaged paving for removing high spots or material bonded to the surface, e.g. markings
E21B 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
The invention relates to a soil-working tool, in particular a tine body (1) for a rotary harrow machine for working an agricultural soil surface, wherein the tine body (1) comprises a tine tip (2) and a preferably bent retaining element (3) adjoining the tine tip (2) and wherein the tine tip (2) has at least one cutting element (7, 8, 9, 10) on the lateral surface edge of the tine tip pointing in the direction of rotation. The lateral surface edge of the tine body (1) equipped with at least one cutting element (7, 8, 9, 10) has a recessed, preferably angled notch (12) for accommodating the the at least one cutting element (7, 8, 9, 10).
The invention relates to a tool system for an agricultural soil cultivation machine, having a base part which, by means of a detachable connection, is connected to a supporting element, in particular to a prong of the agricultural soil cultivation machine, wherein the base part has a cutter and at least one hard material element adjacent to the cutter, and wherein the supporting element has, in the end region thereof pointing in the working direction, laterally arranged wing shares fitted with hard metal plates. According to the invention the edge of the wing share that is fitted with hard metal plates is led as far as a side surface of the supporting element. The invention further relates to an associated wing share. The tool system has reduced wear and therefore prolonged replacement intervals.
The invention relates to a blade tip and to a tool combination having a blade tip for an agricultural soil cultivation machine, wherein the blade tip has a base part which has a cutter on a cutter carrier, and a guiding element attached to the blade tip, wherein the blade tip has a screw receptacle for fastening to a tine of the agricultural soil cultivation machine. Here, provision is made for the base part to have a receptacle which is covered by means of a covering portion in the tool feeding direction (V), for the guiding element to have a plug attachment which is held in the receptacle, and for a form-fitting connection, which prevents any movement of the guiding element out of the receptacle, to act in the region of the receptacle between the blade tip and the guide element.
The invention relates to a guide element for an agricultural soil-cultivation machine comprising a connection region for arranging the guide element on a share tip, and comprising a first screw connection for attaching the guide element on a holder, in particular on a tine of the soil-cultivation machine. The guide element has varying thickness, at least in regions along the longitudinal extension thereof running from the connection region to a turned-away end region. The invention further relates to a corresponding tool combination comprising a guide element and a share tip. The invention enables the carrying capacity of the guide element to be conformed to the loads in the tool insert, and thus conforming of the maintenance interval to that of the share tip.
Soil working tool for an agricultural machine, in particular a cultivator, which is fixed on a tool holder and has a tine-like region to which a preferably guide plate-like element is attached. In order to achieve an improved soil flow across the soil working tool with good wear protection and thus a sufficient service life of the soil working tool, the tine-like region has two side strips which run in the longitudinal direction of the soil working tool and have notch-like recesses extending in the transverse direction, and that an at least approximately smooth center strip region is located between the two side strips in the center in the longitudinal direction of the tine-like region of the soil working tool.
The invention relates to a pick (10, 11), in particular a round-shank pick, for use on a cutting roller, comprising a pick head (20) and a pick shank (40) for holding the pick in a pick holder (50), wherein the pick head of the pick has at least one cutting region (20.3). Provision is made here for a planar and/or recessed ejection region (20.4) to be arranged in a central region of the pick head so as to directly or indirectly adjoin the cutting region. The pick has an optimized conveying function for the material to be removed.
The invention relates to a shear bar (1), in particular for a wood chipper for producing wood chips, comprising at least one cutting edge (31) made of a hard material, and a contact surface (22) leading to the cutting edge (31), said cutting edge (31) being formed by a plurality of hard material elements (30) arranged next to one another along the cutting edge (31) on at least one base body (10). In order to achieve a strength-optimised embodiment having a long service life and simple assembly, the hard material elements (30) are secured to the at least one base body (10) by means of an adhesive connection (19).
The invention relates to a shank chisel (10) with a chisel head (12) and a chisel shank (16), wherein the chisel shank (16) has a securing element retainer (181) in which a securing element (40) is arranged. In order to enable a simple installation of the shank chisel (10) in a chisel holder (30) in a safe and maintenance-optimized operating mode, according to the invention, a tensioning element (20) can be displaced relative to the chisel shank (16) in such a way that at least one part of the outer contour of the securing element (40) is changed. The invention further relates to a corresponding fixing assembly (1) for a shank chisel (10) in a chisel holder (30).
The invention relates to a counter-blade, in particular for a wood chipper, for producing wood chips, comprising at least one cutting edge made of a hard material, and a support surface leading to the cutting edge. According to the invention, the cutting edge is made up of a plurality of hard material elements that are arranged next to one another along the cutting edge on a main member. This results in a counter-blade having a long service life.
The invention relates to a pick, in particular a round shaft pick, having a pick head and a pick shaft, having a support element which has a centring lug on the underside thereof, wherein the centring lug has a centring surface which extends inclined with respect to the central longitudinal axis of the pick and merges into a seat surface. To this end circumferential channel according to the invention is disposed in the transition region from the centring surface to the seat surface and the depth of the channel relative to the seat surface is greater than or equal to 0.3 mm. The pick has an optimised rotatability and thus a low wear.
The invention relates to a chisel holder (20) for a drilling tool, said chisel holder, in a portion adjacent to the drill bit, having a lateral face (22) which is remote from a rotational axis (DA) of the drilling tool. Wear optimization of such a tool system can be achieved by a chisel holder the lateral face (22) of which is at least partly covered by a wear protection plate (23).
The invention relates to a chisel (10) having a chisel head (11) and a chisel shaft (17), wherein near its end facing away from the chisel head the chisel shaft has a threaded portion having a thread (19), wherein the chisel head holds a chisel tip (20) made of a hard material, and wherein near the side facing the chisel shaft the chisel head is provided with a supporting surface (15). Especially when superhard hard materials are used for the chisel tip, a load-optimized chisel design is obtained by a domed supporting surface (15).
The invention concerns a tool holder (40) for a ground-working machine, in particular a road groover with a base part (41) comprising a tool-receiving part (45), the tool-receiving part having a tool-insertion region, and the tool-receiving part merging directly or indirectly into a mounting receiver (47) for receiving a nut (30) or the like. According to the invention, in order to be able to perform simplified maintenance with a tool holder of this type, the mounting receiver has mounting surfaces (47.1) for securing the nut peripherally.
The invention relates to a beet puller share comprising a base part having a cutting edge, wherein one or more elements made of hard material are arranged near the cutting edge, said elements forming discharge faces on their upper sides, wherein the discharge faces transition into a flat portion of the base part and wherein said flat portion forms a beet guiding zone, in particular a beet ejecting zone. To improve the useful life of the beet puller share and, associated therewith, to improve harvest yields, the invention provides for the hard material elements to be in the form of cutting elements which at least in parts form the cutting edge and for the discharge face of at least one cutting element to be convexly curved and to transition into the convexly curved beet guiding zone, in particular the beet ejecting zone.
The invention relates to a tool combination, comprising a share tip and an adjoining guide element, wherein the share tip and the guide element have threaded receptacles for fastening to a tine. An easy and secure fastening of both the share tip and the guide element is achieved according to the invention in that the guide element has a threaded receptacle which is covered in the tool advancement direction by means of a cover portion of the share tip.
The invention relates to a soil-working tool (20), in particular a cultivator beam for crop production, having a fastening portion (21) and a working part (22) adjoining the same directly or indirectly. A wear-optimized design of the soil-working tool (20) is achieved according to the invention in that the fastening portion (21) has two spaced-apart supporting surfaces (21.6, 21.8), which form part of a fitting connection.
The invention relates to a bit carrier (20) for a drill head having a tool head (26) which rotatably accommodates a drill bit (30) and which has a securing section for interchangeably coupling the bit carrier (20). According to the invention, wear optimization is achieved in such a tool system in that the securing section has a deflecting surface (25.2) at the front in the feed direction V, said deflecting surface merging into a radially outer side surface (25.3).
The invention relates to a protection element against wear, in particular a knob bolt, comprising a head part (10) from a hard material and a connecting part (20). In order to achieve a protection element against wear that has a material-optimized design, it is provided that the head part (10) is designed as an electrode in an electrically conductive manner or comprises an electrode.
The invention relates to a tool insert for a rotor of a rotary impact crusher, comprising a mallet, which has a head having a working part and which has a fastening base, wherein the fastening base has a front clamping surface facing in the advancing direction and a rear clamping surface directed oppositely toward the back face. According to the invention, in order to improve the operational safety of a rotary impact crusher, in the area of the rear clamping surface, a boss protrudes rearward beyond the rear clamping surface, wherein the boss is arranged between two clamping surface parts of the rear clamping surface offset from each other in the radial direction. The invention further relates to a rotor for a rotary impact crusher having improved operating characteristics.
The invention relates to a feed element (10), in particular pin element, having a carrying part (12) which carries a hard-material element (14) in or on a receptacle (13), wherein the hard-material element is supported indirectly or directly with respect to the carrying part by way of a fastening section (18). In the direction of the upper end (17) thereof which faces away from the fastening section, the hard-material element has at least one first inclination surface (24) which is inclined at a first angle (a) with respect to the centre longitudinal axis (ML).
The invention relates to a wear protection element, in particular a boss with a bearing part, which bears a hard material element in or on a mounting, wherein the hard material element is indirectly or directly supported by a bottom supporting surface of a securing portion on an opposing surface of the bearing part. In the case of such a wear protection element, the service life can be optimized by indirectly or directly connecting to the securing portion a transitional portion, which tapers the outer contour of the hard material element, at least over a certain region, in the direction of its end that is remote from the supporting surface.
The invention relates to a tool system comprising a tool holder (40) and a shank tool (10), the tool holder having a tool receiving opening with a first and a second diameter region (21, 23) which lead into one another via a transition section (narrowing (22)) and a tool shank (11) of the shank tool (10) has a first and a second cross-sectional region which lead into one another via a transition section (11.2). To achieve a design for a tool system of this type that is optimised in terms of wear, the transition sections of the shank tool (10) and the tool holder (40) are interspaced in the direction of the central longitudinal axis of the shank tool to form a repositioning area.
The invention relates to a shank tool for a road milling machine or the like, having a tool head (12) and a tool shank (11), wherein the tool shank (11) has a first cylindrical section (11.1) which indirectly or directly adjoins the tool head (12), and wherein the tool shank (11) has a second cylindrical section (11.3) which is remote from the tool head (12) and indirectly or directly adjoins the first cylindrical section (11.1), and wherein the diameter (c) of the second cylindrical section (11.3) differs from the diameter (b) of the first cylindrical section (11.1). With such a shank tool, improved use properties arise in that the first cylindrical section (11.1) has a diameter (b) in the range between 18 mm and 30 mm and an extent (B) in the direction of the centre longitudinal axis of the tool shank of less than 30 mm.
The invention relates to a conveyor region border for an agricultural harvester, in particular a forage harvester, comprising a conveyor surface. The aim of the invention is to effectively protect such a conveyor region border against wear. This is achieved in that wear protection elements are arranged on the conveyor surface in a mutually spaced manner, and the wear protection elements have a support part connected to the conveyor surface and a hard-material element directly or indirectly connected to the support part.
The invention relates to a tool holder for a road milling machine or similar, comprising a base part (40), on which a tool shank (42) and a collar (41) are formed, the collar (41) having a tool receiving opening and said opening being formed from a bush-type insert (20) consisting of a hard material. In a tool holder of this type, in order to promote good rotational behaviour of the tool and guarantee support for the latter without the need for numerous parts, the tool receiving opening is designed as a stepped bore that has a first and a second diameter region (21, 23), the first diameter region having a greater inner diameter than the second diameter region.
The invention relates to a securing element (30) for a shank tool (10), said element at least partially surrounding a mounting opening (31) by means of an elastic clamping part (32). Securing elements of this type offer a secure clamping action and at the same time an excellent rotational mounting for the shank tool (10) if fixing sections (33) are directly or indirectly attached to the outer radius of the clamping part (32), said sections being interspaced in the circumferential direction.
E21C 35/197 - Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
B28D 1/18 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
49.
EXCAVATOR SHOVEL AND EDGE PROTECTOR FOR THE CUTTING EDGE OF AN EXCAVATOR SHOVEL
The invention relates to an edge protector (40) for the cutting edge of an excavator shovel with a support part (41) comprising or bearing a cutting edge carrier (42). n order to protect the cutting lip area of an excavator shovel effectively with such an edge protector, the cutting edge (43.2) of the cutting edge carrier (42) is formed according to the invention at least in part by one or more cutting elements (43) made of hard material, the cutting element (43) being mounted on a carrying section (42.4) of the cutting edge carrier (42).
The invention relates to a drill head comprising a tool holder, to chisel supports mounted thereon and to drill bits. According to the invention, the chisel supports can be separated from the tool holder.
The invention relates to a chisel holder (10) having a plug-in extension (18) and having a bore-like chisel mount (10.2) which has a central longitudinal axis (M), wherein a convexly curved supporting surface (10.1) is provided on a base part (11). Such a chisel holder (10) can be realized with a compact and stable construction in particular in that the central longitudinal axis (M) of the chisel mount (10.2) intersects the supporting surface (10.1).
The invention relates to a soil working tool, in particular a cultivator tip, having a carrier (10) which bears a primary cutting element (20) and at least two secondary cutting elements (21) on a cutter holder (13), wherein both the primary cutting element (20) and the secondary cutting elements (21) comprise a cutting edge (20.3, 21.3). In order to optimize the penetration so as to achieve better cutting results, the cutting edges of the secondary cutting elements (21) are arranged offset with respect to the cutting edges of the primary cutting element (20).
The invention relates to a beater bar for a rock impact crusher, in particular a rotary impact crusher, comprising a carrier which, in the region of a cutting edge, has a plurality of cutting elements made of hard material arranged next to one another. For the purpose of simple maintenance and for improved cost-effectiveness of the beater bar, it is provided according to the invention that two or more cutting elements are fastened on a cutting-element holder, and that two or more cutting-element holders can be interchangeably fastened to the carrier.