A slip form paving machine includes a machine frame (10), a plurality of ground engaging wheels or tracks (30,30F,30R) and front and rear height adjustable lifting columns (32,32F,32R) supporting the machine frame from the ground engaging wheels or tracks, the lifting columns being adjustable to adjust a longitudinal inclination of the machine frame in a paving direction (12). A slip form mold (24) is supported from the machine frame for molding a mass of concrete (16A) into a formed not yet hardened concrete slab as the paving machine moves forward in the paving direction. A swelling sensor (220) is arranged to detect a swelling of the formed not yet hardened concrete slab relative to the machine frame behind the slip form mold. A method of controlling the slip form paving machine is also disclosed.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
2.
SELF-PROPELLED GROUND WORKING MACHINE WITH AN ELECTTRICALLY DRIVEN WORK DEVICE AND BALANCED WEIGHT DISTRIBUTION
A self-propelled ground working machine (10) comprises a machine frame (14) and a undercarriage (12), wherein the undercarriage (12) has a plurality of rollable drives (18, 22), wherein the machine frame (14) supports a work device (28) for ground clearing work, wherein the work device (28) is held on the machine frame (14) such that it can rotate about a rotation axis (R), wherein the ground working machine (10) has an electric work drive (50) in order to drive the work device (28) to carry out a rotating work movement performing the ground clearing work, wherein the ground working machine (10) has an electrical energy source (56) which outputs electrical energy to the work device (28) during the ground working operation, and wherein the ground working machine (10) has a receiving formation (42) for receiving a conveying device (40) for transporting cleared ground material. According to the invention, the electrical energy source (56) is an electrical energy store (56), wherein, in a reference state in which the ground working machine (10) is standing on level ground (U), the electrical energy store (56) on the one hand and the receiving formation (42) on the other are arranged on different sides of a reference plane (BE) which contains the rotation axis (R) and is orthogonal to the standing surface of the ground (U).
The invention relates to an interchangeable chisel holder (40) which can be fixed to a milling drum (15) of a ground-working machine (10), having a forward chisel holder (42) for the interchangeable holding of a forward chisel (20), preferably a round-shaft chisel, and having a rearward chisel (30, 31), which is held on the interchangeable chisel holder (40), wherein, as based on a working movement (76) of the interchangeable chisel holder (40) when used in the ground-working machine (10), the rearward chisel (30, 31) is arranged behind the forward chisel holder (42). In such an interchangeable candleholder (40) provision can be made, according to the invention, for the rearward chisel (30, 31) to be held on the interchangeable chisel holder (40) axially and fixed in the circumferential direction of the chisel holder. Maintenance-induced stoppages of the ground-working machine can thus be reduced and the loss of chisels can at least be lowered.
The invention relates to a tool combination consisting of a chisel holder, which can be fastened to a milling drum of a soil tillage machine, and at least one leading and one trailing chisel, which are retained on the chisel holder, wherein the trailing chisel is arranged after the leading chisel, based on a working movement of the tool combination in use in the soil tillage machine, and wherein each chisel has a chisel tip having a cutter. According to the invention the trailing chisel tip of the trailing chisel has, at least in some areas, a greater hardness than the leading chisel tip of the leading chisel. Thus stoppage times of the soil tillage machine for maintenance can be reduced and the loss of chisels can at least be decreased.
The invention relates to a skid segment (10) for an edge protection (5) on a road road milling machine or similar ground processing machine having a base part (11) and at least one first skid section (12) mounted thereupon, wherein the first skid section (12), in a first operating position of the base part (11), can be directed in direction (A) onto the surface of the road or ground. At least one second skid section (13) is mounted on the base part (11), which, in a second operating position of the base part (11), can be directed in direction (A) onto the surface of the road or ground. The invention further relates to an edge protection for a road milling machine or similar ground processing machine having skid segments of this kind, wherein the edge protection has an edge which is designed to receive at least one skid segment.
Disclosed is a wear pad for a track (2) of a tracked vehicle, said wear pad (1) comprising an outer wearing surface (14) and a bottom surface (16) opposite the wearing surface (14); at least one protrusion (30) protrudes from the bottom surface (16); the wear pad (1) includes fastening means (26) that are to be secured to the track (2). According to the invention, the protrusion on the bottom surface (16) of the wear pad (1) has a contour which at least partly extends at an angle from the longitudinal direction (34) of the wear pad (1).
B62D 55/28 - Ground-engaging parts or elements detachable
7.
SYSTEM FORMED BY A CONSTRUCTION MACHINE, TRANSPORT VEHICLE WITH A LOADING SPACE AND IMAGE-CAPTURING DEVICE, AND METHOD FOR DISPLAYING AN IMAGE STREAM WHEN LOADING OR UNLOADING A TRANSPORT VEHICLE
The invention relates to a system (1) formed by a construction machine (2), transport vehicle (3) having a loading space (4) and image-capturing device (5, 36), wherein the image-capturing device (5, 36) is arranged on the construction machine (2) and at least also oriented towards the loading space (4) of the dumper transport vehicle (3), wherein, according to the invention, a receiving and display device (18) is arranged on or in the transport vehicle (3), wherein the data captured by the image-capturing device (5, 36) is transferred to the receiving and display device (18) by a transmission device (46) arranged on the construction machine (2).
E01C 19/00 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
G05D 1/02 - Control of position or course in two dimensions
The invention relates to a self-propelled construction machine, in particular a road-milling machine, recycler, stabilizer, or surface miner, comprising a machine frame (2), which is carried by a chassis (1), which has wheels or traveling units (1A, 1B). A milling roller (4) is arranged on the machine frame. The wheels or traveling units (1A, 1B) and the milling roller (4) are driven by a drive unit (8). Furthermore, the construction machine has a control unit (19) for controlling the drive unit (8) and a signal-capturing unit (18) for sensing at least one measured quantity (M(t)) characteristic of an operating state of the milling roller (4). The construction machine is distinguished in that the rotational speed of the milling roller (4) is adapted to the operating conditions of the construction machine in accordance with at least one measured quantity (M(t)) characteristic of a critical operating state of the milling roller in such a way that the milling roller is operated in a non-critical operating state. The adaptive control of the milling roller rotational speed makes allows for the construction machine to be operated at an optimal working point with respect to the milling roller rotational speed.
The present disclosure provides a machine (100) for surface mining or road milling. The machine (100) is arranged to remove material from a ground region (102) while moving along the ground region (102) and comprises a ground engager for removing a portion of the material from the ground region (102). The machine (100) further comprises a detecting system (110) that has at least one detector element coupled to a component of the machine (100) to move with the machine (100) and arranged to detect at least one quantity associated with an electrical property of the ground region (102). The detecting system (110) is arranged to provide composition information concerning a composition of at least one material layer in the ground region (102) and thickness information concerning a thickness of at least one material layer (102a,b,c,d). The detected at least one quantity associated with the electrical property is used to provide at least one of the composition information and the thickness information.
E21C 39/00 - Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools
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 an automotive milling machine (1a, 1b) which comprises a height-adjustable machine frame (2), a control unit (3) for the travel and milling operations, a work roll, and a pivotable conveyor belt device which is arranged in front of or behind said work roll in the travel direction of the milling machine (1a, 1b), the final or the only conveyor belt of the conveyor belt device (12) in the conveyor direction being pivotable relative to the machine frame (2), laterally through a pivoting angle about an axis (23) which extends substantially vertically and through a height angle about an axis (21) which extends orthogonally to said axis (23), and said conveyor belt (12) unloading the milled material at a pre-determined conveyor speed onto an point of incidence (16) on a loading surface (15) of a transport vehicle (10). According to the invention, the control unit (3) comprises a determination-and-control system (24) that continuously locates the varying position of the loading surface (15) of the transport vehicle (10) and of the conveyor belt (12) relative to the machine frame (2), or the varying position of the loading surface (15) of the transport vehicle (10) relative to the conveyor belt (12), and automatically continuously controls the positioning of the point of incidence (16) of the milled material (14) by means of the pivot angle and/or the height angle and/or the conveyor speed of the conveyor belt (12) in such a manner that falling milled material (14) lands within the loading surface (15).
In a self-propelled road mill (1) for processing road surfaces (2), comprising a machine frame (8) borne by a height adjustable chassis (4), a milling drum (12) rotatably supported in a milling drum housing (10), a milling drum drive (14) for the milling drum (12), and a height adjustable scraping shield (64) that closes the milling drum housing at the rear and that is arranged in the milling track (68) of the milling drum (12), the scraping shield, laterally in the milling track (68) of the milling drum (12), is intended to lie resiliently against the milling edge (70) of the milling track (68) orthogonal to the road surface (2).
The invention relates to a chisel holder for a ground-processing machine, in particular a surface miner, a road-milling machine or the like, comprising a holding extension which has a chisel receptacle and/or bears a cutting element. In order to improve the operational reliability of a ground-processing machine, it is proposed according to the invention that the holding extension has, behind the cutting element or behind a receiving region of the chisel receptacle, as viewed in the tool advance direction, a wear protection element with a hard material element for fulfilling an emergency running property.
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 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
The invention relates to a chisel holder for a soil treatment machine, especially a road miller, said chisel holder having a chisel seat (27) in the region of a treatment side of a support base (21) and carrying an add-on (30) indirectly or directly on an add-on side of the support base, wherein the support base (21) has two stripping surfaces [first and second stripping surfaces] forming a pair of stripping surfaces that are at angles (ε1, ε2) relative to each other. In order to provide a chisel holder that has a stable and rigid design, the support base according to the invention comprises at least one additional stripping surface (29.1, 29.4) that is at an angle (γ', ω) relative to the two stripping surfaces of the pair of stripping surfaces.
In a method for determining an area cut with a cutting roll (2) by at least one construction machine or at least one mining machine by working a predefined area in a plurality of cutting trajectories by means of at least one machine (1), determining the length of the cutting trajectories at which a cutting operation has taken place, by evaluating the continuous machine positions, summing the previously cut part-areas taking into account the length of the cutting trajectory and the installed width of the cutting roll (2), wherein the part-area currently cut along the cutting trajectory is checked continuously or subsequently for overlapping or multiple overlapping with previously cut part-areas, and overlapping part-areas are subtracted as overlap areas from the summed, previously cut part-areas, the total summed cut part-areas minus the total established overlap areas produce the cut area.
E01C 19/00 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
The invention relates to a chisel holder for a soil treatment machine, especially a road miller, comprising a support base (21) to which an add-on (30) is connected indirectly or directly on an add-on side, the support base (21) having two first and/or two second stripping surfaces (29.1, 29.4) that are at angles relative each other, the supporting base (21) having a treatment side with a chisel seat (27). In order to design a stable and rigid chisel holder, the first and/or second stripping surfaces (29.1, 29.4) diverge from the add-on side towards the treatment side.
A chisel holder comprises a body zone (12) having a chisel receiving opening (18) that is open at least in the direction of a chisel insertion end (14) of the body zone (12), and also comprises a fastening shaft (26) which extends from a supporting end (20) of the body zone (12) and has a longitudinal shaft axis (LB), the body zone (12) having a first supporting surface region (22) at its supporting end (20). Said chisel holder is characterized in that the body zone (12) has a second supporting surface region (24) at its supporting end (20), said second surface region (24) extending at an angle from the first supporting surface region (22), or/and the first supporting surface region (22) comprises a first supporting surface (28) and a second supporting surface (30) extending at an angle from the first supporting surface (28).
A chisel holder comprises a body zone (12) having a chisel receiving opening (18) that is open at least in the direction of a chisel insertion end (14) of the body zone (12), and also comprises a fastening shaft (26) which extends from a supporting end (20) of the body zone (12) and has a longitudinal shaft axis. A fastening member-affecting zone is provided on a first side of the fastening shaft (26), and a supporting zone (78) that has supporting surface regions (88, 90) which are inclined relative to each other and adjoin each other in a transition zone (92) extending in the direction of the longitudinal shaft axis is provided on a second side of the fastening shaft (26), said second side lying opposite the first side relative to the longitudinal shaft axis. Said chisel holder is characterized in that the transition zone (92) is designed like a cavity, or/and at least some sections of at least one supporting surface region (88, 90) project radially outward from a basic outer peripheral surface (94) of the fastening shaft (26) in relation to the longitudinal shaft axis.
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 chisel holder for a ground processing machine, in particular a road miller, comprising a supporting member to which a plug-in attachment is indirectly or directly connected at a plug-in attachment end. The plug-in attachment has at least one convex contact surface and a pressure surface. In order to deflect the processing forces in such a chisel holder in an optimized manner with respect to the load conditions, the plug-in attachment has two convex contact surfaces that are located at a distance from each other.
The invention relates to a slipform paver, comprising a chassis (3), which carries a height-adjustable machine frame (2), on which a conveying apparatus (23) for supplying a flowable material is provided, the machine frame comprising a mounting unit (8) for fastening a device (10) for shaping flowable material. The slipform paver according to the invention is characterized in that the mounting unit (8) for fastening the device for shaping flowable material comprises at least two claw-shaped fastening elements (16), which are arranged on the mounting unit in such a way that the claw-shaped fastening elements are opened in the same direction. At least two cylindrical retaining elements (17A to 17E) are associated with the at least two claw-shaped fastening elements (16A to 16E) of the mounting unit (8) of the slipform paver (1). The at least two cylindrical retaining elements are arranged on the mounting unit (9) of the device for shaping the flowable material (10) in such a way that the axes thereof extend transversely to the working direction (A). The claw-shaped fastening elements of the slipform paver, which are opened in the same direction, accommodate the cylindrical retaining elements of the device for shaping the flowable material. In an alternative embodiment, cylindrical retaining elements are arranged on the mounting unit of the slipform paver and claw-shaped fastening elements are arranged on the mounting unit of the device for shaping flowable material. It is advantageous that the fastening elements or retaining elements of the slipform paver can absorb both the weight force of the device for shaping and a force acting against said weight force without it being necessary to pressurize hydraulic or pneumatic cylinder arrangements.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
28.
EJECTOR OR EJECTOR UNIT FOR A ROAD MILLING MACHINE OR THE LIKE
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
29.
EJECTER UNIT FOR A ROAD MILLING MACHINE OR THE LIKE
The invention relates to a chisel holder (20) for a cutting machine, road milling machine, surface miner, or the like, having a chisel receptacle (29), which comprises an insertion opening, and having a chisel supporting surface (26), wherein at least one wear protection element (40) is arranged in an area associated with the chisel supporting surface. In order to bring about effective wear protection in such a chisel holder at low cost, it is provided that the at least one wear protection element is designed as a weld (40) and is arranged at least in areas in at least one opening (41).
The invention relates to a method for milling an open cast surface or for milling away layers of an asphalt or concrete traffic surface with a milling machine that removes the ground surface. According to the invention, by milling the ground surface along a predetermined milling track having a predetermined length, by transporting the milled material via a conveying device to at least one container of a truck that travels along next to the milling machine, said truck having a predetermined maximum load volume per load, and by replacing a completely loaded truck with an unloaded truck when the maximum load volume of a truck load is reached, the following features can be achieved: the maximum total load volume that results from the length of the current milling track is calculated as a function of the current effective working width and an optimized milling depth with respect to a predetermined, preferably maximum milling power; the number of truck loads required for the maximum total load volume of a milling track is calculated; an effective total load volume of the current milling track resulting from the volume of the nearest whole number of loads is determined; and the adjustable total milling volume of the milling machine over the length of the milling track is adjusted to match the effective total load volume, resulting in a whole number of loads.
The invention relates to a self-propelled road construction machine (1) comprising a working roller (6) supported on a machine frame (4) for processing a ground or traffic surface (3), an internal combustion engine (10) for driving the working roller (6), and a drive train (8) between the internal combustion engine (10) and the working roller (6), at least one vibration damper (5) and/or oscillation damper being located on the working roller (6) or in the drive train (8) downstream of the internal combustion engine (10), eliminating or reducing the rotational vibrations generated by the internal combustion engine (10).
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
33.
ROAD MILLING MACHINE, AND METHOD FOR POSITIONING THE MACHINE FRAME PARALLEL TO THE GROUND
Disclosed are a road milling machine and a method for positioning the machine frame parallel to the ground surface (8). An automotive road milling machine (1), particularly a cold-milling machine, comprises a chassis that supports the machine frame (4) via lifting columns (12, 13), a milling roller (6) mounted on the machine frame (4) for machining a ground surface (8) or road surface (8), vertically adjustable lateral shields (10) as edge guards which rest on the ground surface (8) or road surface (8) that is to be machined, a vertically adjustable doctoring device (14) which is disposed behind the milling roller (6) in the direction of travel and can be lowered into the milled track (17) created by the milling roller (6), and a controller (23) for regulating the milling depth of the milling roller (6). The controller (23) determines the milling depth of the milling roller (6) from measured values of at least one measuring instrument (16). In said automotive road milling machine (1), the controller (23) automatically regulates the lifted state of at least one rear and/or front lifting column (12, 13), 'rear' and 'front' being in relation to the direction of travel, in order to position the machine frame (4) parallel to the ground surface (8), road surface (8) or a predefined milling plane.
In a road-making machine (1) for working road surfaces, having a cutting drum (3) vertically adjustable with respect to the cutting depth, having a levelling device (4) with at least one controller (6a, 6c) which receives setpoints for the milling depth and/or the inclination of the cutting drum (3), and having at least one interchangeable sensor (A, B, C) or having a plurality of switchable sensors for detecting the current actual value of the cutting depth and/or of the inclination of the cutting drum (3) in relation to a reference surface, wherein the controller (5a, 6c) performs a milling-depth closed-loop control and/or an inclination closed-loop control for the cutting drum (3) as a function of predetermined setpoints and the currently measured actual values of the at least one sensor (A, B, C) by output of a manipulated variable for achieving or maintaining the setpoint during cutting operation, wherein the levelling device (4) has an indicating and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B, C), provision is made for the indicating and setting device (2) of the levelling device (4) to have, apart from an indicating and setting unit (2a, 2c) provided for the at least one currently used sensor (A, B), an additional indicating and setting unit (2b) for a selectable sensor (B) to be exchanged for the currently used sensor (A, C).
Disclosed is an automotive road construction engine (1), particularly a recycler or a cold stripping machine, comprising an engine frame (4) that is supported by a chassis (2), a working roller (6) which is stationarily or pivotally mounted on the engine frame (4) and is used for machining a ground surface or road surface (24). The chassis (2) is provided with wheels (10) or tracked running gears which are connected to the engine frame (4) via lifting column (14) and are vertically adjustable relative to the engine frame (4). The lifting columns (14) are composed of two hollow cylinders (13, 15) that can be inserted into each other, are used as a guiding unit, and preferably coaxially accommodate at least one piston-cylinder unit (16) therein for vertical adjustment purposes. Each individually vertically adjustable lifting column (14) is equipped with a device (18) for measuring the actual vertical state of the lifting column (14). Said measuring device (18) is coupled to lifting column (14) elements that can be adjusted relative to each other according to the vertical position in such a way that the measuring device (18) can continuously detect a path signal regarding the vertical position of each lifting column (14). A controller (23) which receives the measured path signals of the measuring devices (18) of all lifting columns (14) regulates the vertical state of the lifting columns (14) in accordance with the measured path signals of the measuring devices (18) and/or the changes thereof over time.
The invention relates to a construction machine, in particular a road milling machine, recycler or stabiliser, comprising a machine frame (4) that is carried by a chassis (2), a working roller (6) and a drive train (8), which comprises at least the following elements: a drive motor (10); a tractive element gear (12) for the mechanical drive of the working roller (6), comprising a drive element, a driven element and a tractive element (30); a unit (14) for switching the torque between the drive motor (10) and the working roller (6); and a unit (16) for driving at least one hydraulic pump. According to the invention, the elements of the drive train (8) are divided into at least two groups, the first group (3) containing at least the drive motor (10) and the second group (5) containing at least the drive element (11) of the tractive element gear. The first and second groups (3, 5) are interconnected by means of an articulated coupling unit (20).
The invention relates to a road-building machine whose left front wheel (4) or caterpillar, right front wheel (6) or caterpillar, left rear wheel (8) or caterpillar and right rear wheel (10) or caterpillar are connected to the road-building machine chassis by means of an actuating element and are height-adjustable with respect to the road-building machine frame. According to said invention, different actuating elements are rigidly connected to the road-building machine chassis and forcedly coupled to each other in such a way that the left front wheel (4) or caterpillar and the right rear wheel (10) or caterpillar are height-adjustable in the same direction and with respect to the right front wheel (6) or caterpillar and the left rear wheel (8) or caterpillar are adjustable in the opposite directions. The all wheels (4, 6, 8, 10) or caterpillars are equally height-adjustable. The inventive road-building machine provides a high operational stability, the improved compensation of the adjustment of lateral hindrance inclination of the road-building machine and the irregularities in the longitudinal direction thereof.
B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or s the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
The invention relates to a chisel holder system which comprises a base part (10) and a chisel holder (20). The base part (10) comprises a socket (14) wherein the chisel holder (20) comprising a plug-in insert (21) is introduced. Said chisel holder (20) which comprises a bearing surface (27) is supported on a supporting surface (12) of the base part (10), and the base part (10) comprises a shoulder (13) which is connected to the supporting surface (12). A replacement chamber is formed between the shoulder (13) and a facing end surface (28.1) of the chisel holder (20). According to the invention, the supporting surface (12) is placed in the transition region in relation to the shoulder (13) by means of at least one recess (15) of the shoulder (13) such that the flat-shaped connection between the supporting surface and the shoulder (13), in the region of the recess (15), is interrupted in order to optimise the resistance to wear and tear of the base part (10).
The invention relates to construction machinery (1) comprising a frame (2) with a width that is suitable for transporting on a transport vehicle and a length, which is a multiple of the width (2), extending in the longitudinal direction. Said machinery comprises a chassis with several wheels or chain drives (4), which are coupled to the frame (2) via lifting columns (8). The wheels or chain drives (4) can be pivoted from a working position (7) that runs transversally to the longitudinal direction of the frame (2) into a transport position (5) that runs parallel to the longitudinal direction and can be manoeuvred in the transport position (5) by means of a swivel gear (14) that acts on the wheels or chain drives. According to the invention, the lifting columns (8) comprise consoles (10) and the consoles (10) of two neighbouring lifting columns (8) are connected to the frame (2) and to a coupling rod (18) by respective articulations (20, 22, 24, 26). The mutual distances of the articulations (20, 24; 21, 26) on a console (10) are such and/or the coupling rod (18) has such a form that when the coupling rod (18) is pivoted and the swivel gear (14) is in its final position, said rod maintains a distance to the articulations (20, 22) on the frame side and/or to the lifting columns (8) over a pivoting angle range in excess of 90°, starting from the working position, and that the swivel gear (14) executes both the manoeuvring displacement in the transport position (5) and the pivoting displacement from the transport position (5) into the working position and vice versa.
B62D 7/14 - Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
The invention relates to a chisel holder for a road milling machine or similar, comprising a base part (10) which bears a retaining shoulder (30), wherein said shoulder (30) comprises a chisel receiving element (31) and wherein a projection (15) is joined to the base part (10) in the direction of advancement of the chisel holder upstream from the retaining shoulder. In order to improve cutting performance, particularly when the elements that are to be milled exist in the form of large chips, the base part (10) is provided with a connecting section which is embodied as a chip breaker and which is formed on the base part (10) and which extends, from the retaining shoulder (30) onwards, over the projection (15) in at least partial manner.
The invention relates to a tool holder comprising a tool box (10) which is provided with a tool seat (20) in a holding projection (15) for receiving a tool (30) in such a manner that it can be replaced. The tool seat (20) is configured as a bore and comprises a tool insertion opening (24). The tool holder (10) has a fastening side with a fastening projection (11) and, facing away from said fastening side, an exterior, and during use of the tool centrifugal forces are effective in the direction from the fastening side to the exterior. The aim of the invention is to ensure the free rotability of a tool (30) inserted in the tool holder (10) of the aforementioned kind even if overburden material enters the tool seat (20). For this purpose, the holding projection (15) is provided with an opening (22) penetrating the inner wall of the tool seat (20) and creating a spatial connection to the exterior, and the opening (22) opens the tool seat (20) towards the exterior.
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