EP4227464A1 - Dispositif d'enlèvement de sol de culture avec plaque latérale divisée - Google Patents

Dispositif d'enlèvement de sol de culture avec plaque latérale divisée Download PDF

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Publication number
EP4227464A1
EP4227464A1 EP23154856.1A EP23154856A EP4227464A1 EP 4227464 A1 EP4227464 A1 EP 4227464A1 EP 23154856 A EP23154856 A EP 23154856A EP 4227464 A1 EP4227464 A1 EP 4227464A1
Authority
EP
European Patent Office
Prior art keywords
axis
component
removal device
soil removal
base structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23154856.1A
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German (de)
English (en)
Inventor
Stefan Abresch
Marcel Joisten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wirtgen GmbH
Original Assignee
Wirtgen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP4227464A1 publication Critical patent/EP4227464A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/241—Digging wheels; Digging elements of wheels; Drives for wheels digging wheels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/26—Safety or control devices

Definitions

  • Such cultivation soil removal device is from EP 1 222 333 B1 or from those belonging to the same family WO 2001/025545 A known.
  • the side shields of this known soil removal device are formed in one piece and are also formed in one piece with the soil contact section.
  • the known side plates can be moved orthogonally to the working axis by means of a crank pin, guided in a first slot, of an eccentric lever of a lifting drive which can be pivoted relative to the base structure.
  • the removal depth is also adjusted by pivoting the crank pin.
  • the known side shields have a second elongated hole into which a guide pin fixed to the base structure engages.
  • the guide pin fixed to the base structure and the crank pin of the eccentric lever run parallel.
  • the curved elongated holes, in which the two pins each engage, run twisted relative to one another about an axis of rotation parallel to the pins, so that the two pins define the position of a substantially flat side plate orthogonally to the direction of extension of the two pins relative to the base structure.
  • the two elongated holes, in which the two pins each engage are curved about a common axis of curvature.
  • the side shields can therefore rotate about the axis of curvature relative to the base structure, with the maximum possible angle of rotation of the rotation being predetermined by the length of the shortest elongated hole.
  • the design of the known side shields and the base structure is such that the axis of curvature of the elongated holes ideally coincides with the working axis.
  • a self-propelled working vehicle that carries the attached soil removal device during soil removal can tilt in a pitching movement about the pitch axis, which often happens in such soil removal processes, without this pitching movement changing the effective removal depth of the soil removal device.
  • the side plates that determine the excavation depth rotate about the pivot axis defined by the common axis of curvature of the two oblong holes. The closer this is to the working axis, the less influence the pitching movement has on the removal depth.
  • the side plates on the known soil removal device can only be moved relative to the base structure, which carries the working drive, either a purely rotational passive movement, driven by the described pitching movement of the working vehicle, or a combined translational and perform rotational movement.
  • Another cultivation soil removal device is from EP 3 350 373 B1 known.
  • the side plate also has slots in which a crank pin and a guide pin are slidably received and guided. This side plate can also be changed in position relative to the base structure.
  • the difference between this soil removal device and the previous one is that the guide pin of this soil removal device is arranged coaxially with the working axis, so that only the elongated hole of the side plate, in which the crank pin engages, is curved, while the elongated hole in which the guide pin engages is a straight slot.
  • ground contact sections of the side shields are subject to high wear due to their ground contact and due to their proximity to the excavation tool, from which abrasive grains, often made of mineral soil material, are flung away at high speed during excavation operation.
  • Replacing worn ground contact sections always requires replacing the entire side shield. Because the side plate is usually made of steel, this replacement is complicated and requires a lot of strength, possibly using lifting gear.
  • At least one side plate is made up of the first and second side plates and has a multi-part design and a lifting component that can be displaced in a translatory manner relative to the base structure transversely to the working axis, and a lifting component that can be displaced in a translatory manner together with the lifting component and is relatively to the lifting member about the pivot axis pivotable pivoting member, wherein the ground contact portion of the side plate is indirectly connected with the interposition of the pivoting member to the lifting member.
  • the lifting component which determines the setting of the excavation depth of the soil removal device during excavation operation due to its position relative to the base structure, can remain on the device housing, since the ground contact section is not formed directly on the lifting component, but is only indirectly connected to it.
  • the working drive is preferably a motor with a rotary output element, in particular with an output shaft.
  • the working drive is preferably a hydraulic motor. Deviating from this, the working drive can also be an electric motor or an internal combustion engine.
  • the work drive is supplied with drive energy by the work vehicle, regardless of its physical mode of operation.
  • the add-on soil removal device preferably has corresponding lines with line couplings, which can be coupled with corresponding counter-couplings on the work vehicle for the transmission of energy.
  • the line couplings can, for example, be couplings of hydraulic lines or of electrical lines.
  • the driven component is a component driven by the working drive, by means of which drive energy can be transmitted to the removal tool.
  • the output component can be an output shaft of the working drive provided for rotation.
  • the output component is preferably a flange coupled for joint rotation with the output shaft, with which a removal tool that is particularly suitable for the respective removal task can be connected to transmit torque thereto and will be connected to perform removal tasks.
  • the removal tool can be a milling drum with a drum shell that is equipped with cutting tools, such as milling tools.
  • the cutting bits are then rotated around the working axis in the excavation mode and remove material from the soil by engaging in it.
  • the milling drum has, preferably radially inside its drum shell, a connecting flange with which it can be connected to the driven component, preferably detachably.
  • the removal tool may be a cutting wheel, cutting or saw blade, or a plurality of axially spaced apart ones cutting or saw blades.
  • a removal tool also has a connecting flange, preferably radially within its cutting circle.
  • a single cutting or saw blade is chosen when only one cut is to be made in the ground, such as to lift a clod of soil off the ground as a whole.
  • the plurality of spaced apart cutting or saw blades may be used, for example, to machine a desired surface texture into the surface of a floor, such as mutually parallel grooves of predetermined groove depth.
  • the present invention essentially relates to the configuration of at least one side plate, it is irrelevant whether the soil removal device, which is basically designed to accommodate a removal tool, actually has a removal tool or not.
  • the torque-transmitting coupling between the removal tool and the driven component is preferably established via detachable connecting means, for example using at least one screw component, for example using a plurality of threaded pins arranged in the circumferential direction at a circumferential distance from one another and at a radial distance from the working axis, as is also the case, for example, with Coupling of vehicle wheels with the wheel hub of the vehicle is known.
  • detachable connecting means for example using at least one screw component, for example using a plurality of threaded pins arranged in the circumferential direction at a circumferential distance from one another and at a radial distance from the working axis, as is also the case, for example, with Coupling of vehicle wheels with the wheel hub of the vehicle is known.
  • a central screw component whose screw axis runs coaxially to the working axis, such as a central threaded pin or a central nut, can be used to fix the removal tool on the driven component.
  • the device housing essentially serves to protect the surroundings of the soil removal device from removal grains, which are detached from the soil material by the removal tool and are thrown away from the removal site at high speed in all conceivable directions immediately after their removal.
  • the carrier part which carries the working drive, serves as the coordinate origin of the device housing.
  • Each movement of components of the device housing is described in the present application as a relative movement relative to the carrier part or to the base structure formed with the participation of the carrier part.
  • the base structure includes the carrier part and all other components of the device housing rigidly connected to the carrier part, regardless of whether they are integrally connected to the carrier part or are mounted directly or indirectly on the carrier part.
  • the carrier part can be, for example, an arm and/or a plate on which the drive motor is accommodated and supported in terms of torque.
  • the apparatus housing may also include a shroud shield which extends circumferentially around a circumferential portion of the working axis and spaced therefrom.
  • the casing shield then surrounds the cutting tools on the removal tool rotating about the working axis at a radial distance. Since the excavation tool must be able to engage with the ground, the casing shield does not surround the excavation tool in a closed manner, but only over a circumferential section that is smaller than a full circle.
  • the jacket shield thus surrounds a receiving space for receiving the removal tool.
  • the jacket shield is preferably at least partially part of the base structure, but can have components that are movable relative to the base structure, such as maintenance flaps.
  • the carrier part can be arranged on an axial end area of the jacket shield.
  • a removal tool connected to the drive component then protrudes axially from this on one side. If there is only one cutting or saw blade, the one-sided overhang extends only over the thickness of the blade. In the case of a milling drum or the plurality of cutting or saw blades described above, however, the axially one-sided overhang can lead to a not insignificant tilting moment on the driven component, which must be supported accordingly by design measures.
  • the shell shield if present, is located axially between the first and second side shields.
  • the side shields preferably close axially on both sides of the receiving space of the removal tool surrounded by the casing shield of the recording room.
  • the carrier part and/or generally a section of the base structure such as a rigid housing wall connected to the casing shield and oriented transversely to the working axis, can be located axially between a side shield and the receiving space.
  • a section of the base structure delimiting the receiving space can be formed with an opening that penetrates the section axially, for example to accommodate the working drive in the opening or to accommodate operating fluids such as for example to conduct hydraulic fluid and/or lubricant and/or coolant through the opening. This is particularly advantageous when the working drive is arranged entirely or partially in the receiving space of the removal tool.
  • the side plates of the add-on soil removal device discussed here determine the removal depth at which the removal tool removes soil material during removal operation, starting from the soil surface pointing to the soil removal device.
  • the translationally displaceable lifting component of the at least one side plate is preferably connected in a self-locking manner to a lifting drive for the translational adjustment of the lifting component. Then the lifting component and thus the side plate can only be displaced translationally by the lifting drive, but not by a force exerted by the base structure on the side plate, such as a weight of the base structure and possibly a weight of a working vehicle connected to the soil removal device and/or how an excavation reaction force of the excavation tool.
  • the self-locking between the lifting component and an output part of a lifting drive can be achieved by selecting a contact angle between the lifting component and the output part depending on the material pairing between lifting component and output component and thus depending on the effective coefficient of friction between the components mentioned.
  • This contact angle can be the pitch angle of a screw drive if the lifting drive includes a screw drive.
  • the contact angle can also be the slope angle of a flank of a slot in which the crank pin engages and along which flank the crank pin slides during a translational displacement of the lifting component, for example if the lifting drive has an eccentric lever already known in the prior art for this purpose.
  • crank pin is preferably carried on the eccentric lever and protrudes from it, particularly preferably orthogonally to the translatory direction of movement of the lifting movement, it should not be ruled out that the slot can be formed on the eccentric lever and the crank pin protrudes from the lifting component.
  • the lifting component can be fixed in translation relative to the base structure by the lifting actuator, in which the lifting actuator is blocked for movement.
  • This can be realized by positive engagement or frictional engagement of a locking member, which can be switched between locking engagement and release, with an output member of the lifting actuator.
  • this can be effected by appropriate switchable check valves which separate the hydraulic pressure prevailing in the lifting actuator or the hydraulic fluid present in the lifting actuator from the hydraulic oil circuit which is basically connected to the hydraulic lifting actuator.
  • the side shields not only determine the excavation depth of the soil excavation device in the respective excavation operation, but also axially close off any existing gaps between the base structure and the soil surface of the soil to be processed as well as possible. Due to the adjustability of the excavation depth, such a gap between the base structure and the ground surface is almost unavoidable.
  • a component consisting of a lifting component and a pivoting component can have at least one curved slot, preferably have a plurality of curved oblong holes into which or into which respectively a guide pin protrudes protruding from the respective other component made up of the lifting component and the pivoting component.
  • the curvature of the at least one slot is chosen such that the axis of curvature of the at least one slot, preferably of the plurality of slots, is the pivot axis of the pivot component.
  • the pivoting component can be pivotably mounted on the lifting component via a pivot pin forming a pivot bearing, the axis of the pivot pin being coaxial with the pivot axis. It is freely selectable whether the lifting component carries the pivot pin and the pivot component carries a sliding bush surrounding the pivot pin or vice versa.
  • the at least one guide pin preferably has a sliding section surrounded by the elongated hole and a locking section, the locking section having a larger dimension orthogonal to the guide pin axis, in particular a diameter, than the sliding section, and a larger dimension orthogonal to the guide pin axis than the elongated hole penetrated by the sliding section.
  • the sliding section of a guide pin then lies along the guide pin axis between the locking section and the component carrying the guide pin.
  • the locking section allows the guide pin to absorb and support transverse forces acting along the working axis.
  • a ground contact section generally has a contact surface designed for contact with the ground to be worked and/or a contact point designed for contact with the ground to be worked.
  • the direction of advance is then a direction that is parallel to the contact surface or parallel to a virtual ground surface defined by the totality of the contact points and that runs orthogonally to the working axis.
  • the Floor surface is determined directly by the contact area or by the virtual floor surface mentioned.
  • the pivot pin if present, can also have a blocking section, which has a larger dimension orthogonal to the pivot pin axis, in particular a diameter, than a sliding opening, in particular a sliding bush, through which the pivot pin passes, so that the pivot pin can also absorb transverse forces acting in the direction of the working axis.
  • the slide opening, in particular the slide bushing is then located along the longitudinal axis of the pivot between the component carrying the pivot and the locking section of the pivot.
  • pivoting component can basically be provided that at least one further component is provided between the pivoting component and the ground contact section, which is connected on the one hand to the pivoting component and on the other hand to the ground contact section.
  • the pivoting component has the ground contact section.
  • the ground contacting portion may be assembled to the pivot member, or may be integrally bonded to the pivot member, such as by welding, or may be integrally formed with the pivot member, such as an end face of a plate-shaped pivot member.
  • At least one further intermediate component is provided between the lifting component and the base structure, so that the lifting component is guided directly on the intermediate component in a translatory displaceable manner and thereby has a translatory relative mobility to the lifting component.
  • the lifting component is guided in a translationally displaceable manner on the base structure.
  • at least one guide formation can be provided on the base structure, which interacts with a guide counter formation on the lifting component.
  • the leadership formation can be formed in one piece with the base structure, for example by milling a guide groove in a surface of the base structure pointing towards the lifting component, or the guide formation can be realized on a guide component which is mounted on the base structure. The same applies, mutatis mutandis, to the guide counter-formation on the lifting component.
  • a translational rolling element guide between the base structure and the lifting component is conceivable, a translational sliding guide between the lifting component and the base structure is preferred due to the intended dirt loading of the lifting component and the base structure.
  • the translatory direction of movement of the lifting component can be inclined to the working axis, for example if the device housing is designed to widen towards its outlet opening of the cutting tool facing the ground during cutting operation, in order to avoid reactions of forces acting along the working axis on the translatory displaceability of the lifting component, if the lifting component is translationally displaceable orthogonally to the working axis.
  • the lifting component can be displaced in a translatory manner, preferably transversely, particularly preferably orthogonally, to the outlet opening of the excavation tool and thus to the site of the excavation engagement of the excavation tool with the ground.
  • the pivot axis is oriented parallel or coaxially to the working axis.
  • the coaxiality of two axes is the parallelism of the axes with a distance of 0 between them.
  • the lifting component can perform a further relative movement to the base structure in addition to the translational displacement movement.
  • the former can be achieved in that the lifting component is only translationally displaceable relative to the base structure.
  • the second can be achieved in that the pivoting component is only pivotally movable relative to the lifting component.
  • the component of the side plate that carries the ground contact section is preferably designed to be smaller than the lifting component. Then both the storage of ground contact sections and their assembly is easier due to smaller size and thus lower weight.
  • the ground contact section it is preferable for the ground contact section to be provided on the pivoting component, particularly preferably connected to the pivoting component in a materially bonded manner for reasons of stability.
  • the fact that the pivoting component is smaller than the lifting component can be expressed simply by the fact that the surface of the pivoting component facing away from the base structure in the direction of the pivoting axis is less than 40%, preferably less than 30%, of that in the direction of the pivoting axis from the Base structure has pioneering surface of the lifting component.
  • the surface pointing in the direction of the pivot axis is a good measure of the size and weight of the component concerned.
  • the pivot axis of the ground contact section is as close as possible to the working axis, preferably coaxial to the working axis.
  • the advantageous use of a pivot component that is as small as possible makes it more difficult to arrange the pivot axis coaxially with the working axis.
  • Adequate sealing of the engagement zone of the removal tool from the outside environment can also be ensured, however, in that the pivot axis during a translational displacement of the lifting component over its entire operational displacement path is always on the same side of one containing the working axis and for a projection of the translatory displacement path along the working axis orthogonal threshold plane is located.
  • the position of the pivot axis changes relatively as a result of the lifting movement of the lifting component to the threshold plane, with the pivot axis preferably always being located at a distance from the threshold plane, even when the pivot axis approaches the threshold plane as closely as possible, exhausting the maximum possible lifting path.
  • a pitching movement of a work vehicle connected to the soil removal device for the removal work leads to an effective change in the depth of penetration of the removal tool in the soil due to the given distance between the pivot axis and the sleeper level, but these changes are tolerable as a percentage of the set removal depth, in particular because the attached soil removal devices discussed here are usually used for rather rough removal work, in which strict planarity of the worked soil after removal by the soil removal device is not so important.
  • operation lifting distance The maximum possible lifting distance during an excavation operation is referred to as "operational lifting distance". This is not intended to rule out the possibility of a different stroke distance from the operational stroke distance being available for assembly purposes.
  • the base structure carries a lifting actuator whose output member cooperates with the lifting component of the at least one multi-part side plate in order to translate the lifting component in opposite directions.
  • the casing plate as part of the base structure offers sufficient accommodation space for accommodating the lifting actuator.
  • the lifting actuator is preferably arranged on the outside of the jacket shield, namely on the side of the soil removal device opposite the outlet opening for the removal tool for soil engagement with respect to the working axis.
  • the lifting actuator can be an electric motor, for example with a spindle drive or screw drive.
  • the lift actuator is a fluid operated piston and cylinder assembly.
  • This stroke actuator with a linear-translatory movable output member can pivot an eccentric lever that is articulated pivotably on the base structure about an eccentric pivot axis parallel to the pivot axis, in particular also to the working axis, and thus an eccentric lever at a distance from the eccentric pivot axis on the eccentric lever shift formed formation of slot and crank pin, to thereby move the lifting component provided with the other formation of slot and crank pin relative to the base structure translationally.
  • the crank pin is preferably arranged on the eccentric lever and the elongated hole, preferably as a straight, uncurved elongated hole that is easy to produce, on the lifting component.
  • the pivoting component is preferably passively pivotable relative to the lifting component on the rest of the device housing, stored in particular on the lifting component.
  • the pivoting component can ensure the sealing of the engagement point of the excavation tool, since it can easily be displaced relative to the lifting component by the action of an external force, for example by a pitching movement of the connected working vehicle.
  • both side shields of the device housing are formed as described above. Everything said above about the at least one side panel can therefore be implemented on each of the two side panels.
  • both the first lifting component of the first side plate by a first linear guide device with a first guide distance to be measured orthogonally to the translational displacement path and the second lifting component of the second side plate by a second linear guide device with a second guide distance to be measured orthogonally to the translatory displacement path relative to the base structure be stored.
  • the respective guide distances are formed between partial guide formations of a linear guide formation, in particular the sliding guide already mentioned above, in order to avoid undesirable stick-slip and/or drawer effects during the translational displacement of the lifting component.
  • the working axis runs, optionally thought of as lengthened, between the partial guide formations of a linear guide device of a side plate, preferably each side plate, around the effects of around the working axis to keep the tilting moments acting between the lifting component and the base structure as low as possible.
  • the first and the second side plate can include identical parts.
  • the first and the second lifting component are preferably identical parts and/or the first and the second pivoting component are identical parts. If the first and the second ground contact section are realized on contact components that are each configured separately from the pivot component that carries them, such contact components can also be identical parts.
  • the two side shields are mounted with the same orientation on different or axially opposite sides of the base structure, the use of identical parts is made considerably easier if they are essentially flat and mirror-symmetrical with respect to a plane of mirror symmetry parallel to their plane of extension.
  • a component can then be mounted identically from both sides to another component or to the base structure.
  • the construction of the first linear guide of the first side plate, in particular the first lifting component, on the base structure is different from the construction of the second linear guide of the second side plate, in particular the second lifting component, on the base structure.
  • the amount of the first guide distance differs from the second guide distance in order to take into account the different structural conditions on the two side plates.
  • at least the power supply for the working drive runs on one axial side of the device housing through the relevant side plate, in particular through its lifting component.
  • the side plate can be designed with a larger or smaller guide distance to make the receiving space of the working tool in the device housing accessible in order to remove the working tool axially from the receiving space and insert it into the receiving space and to be able to connect it to the driven component .
  • the ground contact section can comprise a skid which, during the excavation operation, lies slidingly on the surface of the ground to be worked with a contact surface facing the ground.
  • the ground contact section can have at least one roller, which rolls on the surface of the ground to be worked during the removal operation.
  • the ground contact section can have a plurality of rollers rolling on the ground surface, each roller lying on the ground surface with its respective contact point, rolling or ready to roll.
  • skids which, for the above-mentioned reasons, can preferably project symmetrically beyond the pivoting component on both sides, at least in the case of a materially bonded connection with the pivoting component, does not prevent the pivoting component from being designed in a fundamentally planar manner. Due to their function, the skids are usually arranged on the edge of the pivoting component in order to ensure reliable contact with the ground during excavation operation.
  • a roller as a ground contact section is preferably mounted on the pivoting component, particularly preferably detachable.
  • a roller as a ground contact section can be mounted on the pivoting component that is the same part from both sides of the latter.
  • the soil-removing device preferably has a coupling assembly with a coupling formation, wherein the coupling assembly is formed with the coupling formation for releasable coupling to a self-propelled work vehicle, wherein the coupling assembly is movably connected to the base structure relative to the latter.
  • the relative mobility of the coupling assembly relative to the base structure may include rotational mobility about a rotational axis orthogonal to the working axis.
  • the working axis runs when connected to a working vehicle Soil removal device usually parallel to the pitch axis of the work vehicle, so that said axis of rotation then runs parallel or predominantly parallel to the roll axis of the work vehicle.
  • the soil removal device or at least the base structure can be actively adjusted by a rotary actuator as a tilting actuator around the axis of rotation orthogonal to the working axis as a tilting axis and held in this tilted position, for example in order to obtain a processed soil surface in the soil after removal, which is relative to the feed direction when it is generated is inclined about the tilting axis parallel to the feed direction.
  • the tilt axis crosses or preferably intersects the working axis.
  • the crossing point or the point of intersection is preferably at the position of the axial longitudinal center of the respective removal tool.
  • Such an inclination can alternatively be realized by translational displacement positions, in particular lifting positions, of the first and second side plates relative to the base structure, which differ in terms of amount. Specifically, when the ground contact sections of the two lateral plates displaced differently in translation rest on the ground to be worked, the working axis is inclined, depending on the difference in the translational displacement positions, about the tilting axis parallel to the feed direction.
  • the tilting actuator acting about the tilting axis orthogonal to the working axis is held in a floating position without the effect of force when the tilting of the soil removal device or its base structure and thus its working axis is caused by the different translatory displacement positions of the side shields should be determined.
  • both side shields determine the excavation depth of the excavation tool during soil removal due to their translational displacement position relative to the base structure, both side shields should generally not be made force-free at the same time by their respective lifting actuators, so that they can both be displaced translationally relative to the base structure by external force. In this case, the resulting removal depth would always be the maximum possible removal depth of the soil removal device.
  • this can also be done by the two specific translational displacement positions of the two side plates, which differ in terms of amount, when the tilt actuator is set to be force-free be achieved by setting a defined translational displacement position of only one side plate, by setting a defined tilt position of the base structure by the tilt actuator and by force-free positions of the lifting actuator of the other side plate.
  • a translational displacement position of the respective other side plate can then be set freely under the given boundary conditions.
  • this side plate is preferably not self-lockingly coupled to its associated lifting actuator, since otherwise the self-locking would have the desired free adjustability of the translational displacement position of the side shield relative to the base structure based on the effects prevailing at the side shield.
  • the relative mobility of the coupling assembly relative to the base structure can alternatively or preferably additionally include a translatory displaceability of the base structure relative to the coupling assembly along a displacement path running along the working axis.
  • the displacement path runs parallel to the working axis and usually also to the pitching axis of the working vehicle.
  • a tilting mechanism which provides the above-described tilting mobility of the base structure about a tilting axis that is orthogonal to the working axis and preferably intersects the working axis, is preferably displaceable together with the base structure along the working axis. In this way it can be ensured that the relative axial position of the tilting axis relative to the working axis does not change as a result of a lateral displacement of the base structure along the working axis.
  • the present invention also relates to a self-propelled work vehicle with an attached soil removal device that is detachably coupled to the work vehicle, as described and developed above.
  • a ground engagement area of the ground-removing device for a ground-removing action preferably lies outside of a ground area bordered by the ground contact points of the chassis of the work vehicle.
  • the work vehicle preferably has a manipulation frame that is movable relative to the vehicle frame, in particular that can be pivoted about the pitch axis and/or can be moved translationally along the yaw axis, to which the soil removal device is directly connected.
  • the load on the vehicle axle closer to the soil removal device can be relieved by lowering the manipulation frame towards the soil to be processed, and the soil removal device can thus be loaded towards the soil.
  • FIG. 1 to 6 an embodiment according to the invention of a mounted soil removal device is generally designated 10 .
  • the soil removal device 10 has a device housing 12 with a to the plane of the figure 1 parallel housing wall 14 as a carrier part.
  • the housing wall 14 carries a working drive 16 in the form of a hydraulic motor, for example.
  • a first side plate 18 In figure 1 in front of the rigid housing wall 14 is a first side plate 18 with a central opening 20 through which the viewer of figure 1 the working drive 16 and a section of the housing wall 14 can be seen.
  • a milling drum 22 as a removal tool to a plane of the drawing figure 1 orthogonal working axis A rotatably recorded.
  • the milling drum 22 is indicated by its cutting circle S, which represents the trace of active tips of cutting tools, for example milling tools, as it rotates about the working axis A.
  • the removal tool could include a cutting blade or a saw blade. This would also be due to its cutting circle in the figures 1 , 2 , 4 and 5 represented in the same way as the milling drum 22.
  • the work drive 16 drives a flange F as an output component of the work drive 16 for rotation about the work axis A.
  • the milling drum 22 is detachably connected to the flange F.
  • a casing shield 24 runs along a circumferential section at a radial distance relative to the working axis A around the milling drum 22 in order to prevent direct access to the milling drum 22 with its cutting tools from the outside for reasons of occupational safety, and also to protect the surroundings U to protect the soil removal device 10 from grains of mineral and therefore abrasive soil material that are removed during the intended removal operation.
  • Abrasive grains of this type have a very high kinetic energy immediately after they have been removed.
  • the soil removal device 10 when mounted on a self-propelled work vehicle V, points towards the work vehicle V, which is in figure 1 is only shown schematically.
  • the work vehicle V is symbolized by a machine frame M of the work vehicle V, on which a manipulation frame R is accommodated so as to be displaceable at least in the direction of the yaw axis Gi of the work vehicle V.
  • the machine frame M and the manipulation frame R which can be moved relative to it, together symbolize the working vehicle V.
  • a side thruster 28 can be provided between the working vehicle V and the back plate 26, with which the soil removal device 10 is parallel to the Working axis A and also parallel to the pitch axis Ni of the work vehicle V can be displaced in a translatory manner over a displacement width predetermined by the work vehicle V and/or the lateral thrust mechanism 28 itself.
  • the back plate 26 can in turn be connected to the lateral thrust mechanism so that it can be pivoted about a tilting axis B that is parallel to the rolling axis Ro of the working vehicle V and/or orthogonal to the working axis A, so that the working vehicle V can perform a rolling movement about its rolling axis without the soil removal device 10 thereby moving during its soil removal to affect adversely.
  • the tilting axis B preferably intersects the working axis A.
  • the tilting axis B can cross the working axis A, then preferably at a distance of no more than half the cutting circle radius, in order to keep a tilting arm between the tilting axis B and working axis A, which is effective during tilting, advantageously short.
  • the back plate, and with it the working axis A can be tilted in a targeted manner about the tilting axis B, which is orthogonal to the working axis A, by means of a tilting actuator, not shown in the figures.
  • a tilting mechanism not shown in the figures which provides the tilting mobility of the base structure 30 about the tilting axis B, is preferably arranged on the side thrust mechanism 28 for the joint displacement movement with the base structure 30 . It can thereby be ensured that the relative axial position of the tilting axis B relative to the working axis A does not change as a result of an actuation of the lateral thrust mechanism 28 .
  • the tilting axis B crosses or preferably intersects the working axis A at the position of the axial longitudinal center of the respective removal tool.
  • the housing wall 14, the shell shield 24 and the back plate 26 are rigidly connected to each other and form a base structure 30 relative to which the Milling drum 22 and the flange F are rotatably movable only about the working axis A.
  • the first side plate 18 is in figure 1 shown in its maximally raised operating position relative to the base structure 30 .
  • the milling drum 22 protrudes from the device housing 12 in an opening pointing to the ground surface G and thus forms a ground engagement area 23.
  • the first side plate 18 is formed in two parts in the example shown and includes an in figure 1 an upper first lifting member 32; and a lower first pivoting member 34.
  • the first pivoting member 34 is pivoted to the first lifting member 32 about a first pivot axis P1.
  • a first ground contact section 36 is cohesively connected to the first pivoting component 34 and is in the present case designed as a skid 38 with a contact surface 40 . With the contact surface 40, the first pivoting component 34 is in soil removal operation sliding on the surface G of the soil to be removed.
  • the pivot bearing of the first pivot component 34 directly on the first lifting component 32 comprises a first pivot pin 42 which is mounted on the first lifting component 32 and has an in figure 1 unillustrated opening of the first pivoting component 34 passes through and which carries a head 44 as a blocking section with a larger diameter than the first pivoting pin 42 and than the opening penetrated by the first pivoting pin 42 on the first pivoting component 34 .
  • the pivot pin is thus roughly mushroom-shaped.
  • the blocking portion prevents the first pivoting member 34 from being axially pulled off the first lifting member 32 .
  • the head 44 as the blocking section, thus absorbs transverse forces acting along the working axis A or along the first pivot axis P1 and holds the first pivot component 34 on the first lifting component 32 even when these transverse forces are exerted.
  • the first pivot member 34 has a front first curved slot 46 and a rear first curved slot 48, the common axis of curvature of which is the first pivot axis P1.
  • the elongated holes 46 and 48 pass through the first pivoting member 34 completely.
  • the slots 46 and 48 penetrated by a front first guide pin 50 and by a rear first guide pin 52.
  • These guide pins 50 and 52 are each held on the first lifting component 32, pass through the associated first elongated hole 46 or 48 with a sliding section and carry a head 44 as a locking section at their free longitudinal end. Consequently, the guide pins 50 and 52 are also roughly mushroom-shaped.
  • the heads 44 again have a larger diameter than the first guide pins 50 or 52 carrying them, their diameter exceeding the width of the slot through which the respective guide pin 50 or 52 passes.
  • the heads 44 thus hold the first pivot member 34 axially on the first lift member 32 and also absorb transverse forces along the working axis A and the first pivot axis P1, respectively.
  • the extension length of the shorter of the first elongated holes 46 and 48 determines the maximum possible pivoting angle of the first pivoting component 34 relative to the first lifting component 32 about the first pivot axis P1. In the example shown, however, the first elongated holes 46 and 48 are of the same length.
  • the first ground contact section 36 can remain in contact with its contact surface 40 with the ground surface G even when the work vehicle V is performing a pitching movement about its pitching axis Ni.
  • the point at which the milling drum 22 engages with the soil to be worked remains shielded from the environment U in the best possible way in the axial direction with respect to the working axis A.
  • the first lifting component 32 is secured at its front end region, ie the end region further away from the work vehicle V, by a clamp 54 encompassing the first lifting component 32 and at its rear end by a strip 56 mounted on the back plate 26 in an axially form-fitting manner on the base structure 30 .
  • Guide blocks 58 indicated by dashed lines guide the first lifting component 32 along the straight translational first lifting path H1 relative to the base structure 30.
  • the first lifting path H1 corresponds to the path generally referred to as the translational "displacement path" in the introduction to the description and runs parallel to that through the sliding or guide blocks 58 predetermined guidance direction.
  • the guide stones 58 which in present example on the by the viewer of the figure 1 are arranged on the side facing away from the first lifting component 32 are in sliding contact with guide rails 60 and 62 arranged one above the other on the housing wall 14 and thus on the base structure 30 (see also figure 3 ).
  • the guide rails 60 and 62 can also be implemented as a one-piece guide rail component, which differs from the illustration.
  • the guide rail 62 has an opening 63 through which the connecting pieces 61a and 61b protrude for connecting supply lines, for example in order to connect the working drive 16 to a hydraulic fluid circuit.
  • the connecting pieces 61a and 61b also pass through the opening 20 in the first side plate 18 or the first lifting component 32.
  • the first pivot axis P1 is located in the in figure 1 shown maximum raised position of the first lifting component 32 and thus of the first side plate 18 at a distance from a threshold plane SE containing the working axis A and orthogonal to the first lifting path H1, below the same. Since the first lifting component 32 and thus the first side plate 18, starting from the in figure 1 The position shown can only be lowered in the direction of the ground surface G in FIG. 1, the distance between the first pivot axis P1 and the threshold plane SE can only increase.
  • a first eccentric lever 64 can also be seen in part, from which a first lifting pin 66 is guided parallel to the working axis A and thus parallel to the first pivot axis P1 and parallel to the guide pins 50 and 52 as well as to the pivot pin 42 through a slot 68 of the first lifting component 32 .
  • the roughly mushroom-shaped first crank pin 66 also has a head 44 with a larger diameter at its free longitudinal end, so that the area of the lifting component 32 that has the slot 68 is held in a form-fitting manner between the eccentric lever 64 and the head 44 of the crank pin 66 .
  • the elongated hole 68 runs essentially orthogonally to the first lifting track H1.
  • figure 2 is also more parallel to the working axis A but to the viewing direction of figure 1 opposite viewing direction that of in figure 1 shown Side axially opposite side of the soil removal device 10 in the same operating position of the soil removal device 10 shown.
  • the device housing has a second side plate 70, which is also divided into two and a second, in figure 2 upper lift member 72 and a lower second pivot member 74 pivoted thereto about a second pivot axis P2.
  • the second side panel 70 is also maximally raised relative to the base structure 30.
  • the second pivoting component 74 which is preferably configured identically to the pivoting component 34 of the first side plate 18 and which is preferably configured to be mirror-symmetrical with respect to an axis of mirror symmetry orthogonal to the pivot axes P1 and P2 for use on opposite axial sides of the device housing 12, has a second ground contact section 76 on.
  • the second ground contact section 76 is also designed as a skid 78 with a contact surface 80 for sliding contact engagement with the surface G of the ground to be worked.
  • a second pivot pin 82 which is mounted on the second lifting component 72 and projects from the second lifting component 72 parallel to the working axis A or the second pivot axis P2, supports the second pivoting component 74 on the second lifting component 72 so that it can pivot about the second pivot axis P2.
  • a front first elongated hole 84 and a rear first elongated hole 86 limit the maximum possible pivoting range of the second pivoting component 74 relative to the second lifting component 72 in the manner already described.
  • a clamp 54 surrounding the second lifting component 72 which is identical to the aforementioned clamp 54 on the other axial side of the device housing 12, holds the front area of the second lifting component 72 to the base structure 30 in a form-fitting manner.
  • the rear area of the second lifting component 72, which located closer to the back plate 26 is held by a combined guide and bearing component 88 both in a form-fitting manner on the base structure 30 and guided for translational lifting and lowering movement along the second lifting path H2.
  • first lifting path H1 and the second lifting path H2 are parallel to one another and oriented orthogonally to the working axis A, so that each lifting path H1 or H2 also represents its projection along the working axis.
  • Sliding or guiding blocks 90 in the guiding and bearing component 88 act with a guiding strip 92 fixed to the lifting component and running parallel to the second lifting path H2 on the to the observer of FIG figure 2 pointing side of the second lifting component 72 together.
  • a guiding strip 92 fixed to the lifting component and running parallel to the second lifting path H2 on the to the observer of FIG figure 2 pointing side of the second lifting component 72 together.
  • Below the guide bar 92 are also parallel to the second lifting path H2 sliding or guide blocks 93 added and supported in the second lifting component 72, but on the viewer of the figure 2 opposite side.
  • the sliding blocks 90 of the guide and bearing component 88 interact with the guide strip 92 on the side of the second lifting component 72 pointing away from the base structure 30, the sliding blocks 93 are located between the second lifting component 72 and the base structure 30, approximately between the further down in Related to figure 3 mentioned base structure fixed frame member 120 and the second lifting member 72 in sliding abutment engagement with a groove formed in the frame member 120.
  • the height of the second lifting component 72 is adjusted like that of the first lifting component 32 by means of a second eccentric lever 94, from which a second crank pin 96, also roughly mushroom-shaped in the example shown, is parallel to the guide pins and the second pivot pin 82 and parallel to the working axis A and to the second Pivot axis P2 protrudes and through an example to the second Hubbahn H2 orthogonally extending slot 98 in the second lifting member 72 and is secured by a head 44.
  • a second eccentric lever 94 from which a second crank pin 96, also roughly mushroom-shaped in the example shown, is parallel to the guide pins and the second pivot pin 82 and parallel to the working axis A and to the second Pivot axis P2 protrudes and through an example to the second Hubbahn H2 orthogonally extending slot 98 in the second lifting member 72 and is secured by a head 44.
  • the base structure 30 points to the viewer of figure 2 side facing has such a large opening that after removing the second side plate 70 from the base structure 30, the milling drum 22 can be removed axially from its receiving space in the device housing 12 and a milling drum 22 can be brought axially into the receiving space and connected to the flange F in a torque-transmitting manner .
  • the two pivot axes P1 and P2 can be arranged at different locations and thus parallel to one another, but at a distance from one another, for example when the working vehicle V is rolling, the two pivot axes P1 and P2 are positioned on both side plates or run coaxially if there is no rolling movement of the working vehicle V.
  • the statements made above regarding the first pivot axis P1 apply to the position of the second pivot axis P2 relative to the sleeper plane SE.
  • the two pivot axes P1 and P2 preferably always lie in a common plane, which runs parallel to the first and second lifting tracks H1 and H2, respectively.
  • figure 3 shows a plan view of the soil removal device 10 according to the invention figures 1 and 2 when viewed along arrow III in Figs figures 1 and 2 , ie when viewed orthogonally to the working axis and orthogonally to the surface G of a soil to be processed by the soil removal device 10 .
  • figure 3 12 essentially shows the axial end areas of soil removal device 10.
  • Shell shield 24 is shown shortened between these axial end areas, which is indicated by the zigzag lines.
  • the work vehicle V and the side thruster 28 are in figure 3 not shown.
  • FIGS figures 1 , 2 , 4 and 5 are not or only partially shown.
  • the lifting actuators 104 and 106 are piston-cylinder devices which are articulated with their one longitudinal end, for example on the cylinder side, to the back plate 26 and whose cantilevered longitudinal end of the piston rod 105 or 107 is connected to a first actuating arm 108 of the first eccentric lever 64 or to a second one Actuating arm 110 of the second eccentric lever 94 is coupled.
  • the lifting actuators 104 and 106 are preferably controlled from the work vehicle V for actuator operation and are supplied with fluid, in particular hydraulic fluid.
  • the first and the second lifting drive 100 or 102 are essentially the same, but have a mirror-symmetrical design with respect to an axis of mirror symmetry orthogonal to the drive axis A.
  • Each of the two lifting drives 100 or 102 comprises a scale 112 or 114 which can be moved with the respective driven eccentric lever 64 or 94 and which can be moved together with its eccentric lever 64 or 94 relative to an indicator 116 or 118 which is fixed to the base structure.
  • the operator of the work vehicle V can see and read this robust display of the currently set excavation depth from his operator's station.
  • the indicators 116 and 118 show the maximum working depth of 7 scale divisions.
  • a frame 120 fixed to the base structure is rigidly connected to the outer plate 24 between the outer plate 24 and the second side plate 70 .
  • This frame 120 has the opening for the axial assembly and disassembly of the milling drum 22 and carries the bracket 54 and the guide and bearing component 88.
  • figure 4 is the soil removal device 10 in the same perspective as in FIG figure 1 shown, however, with the first side plate 18 lowered to the maximum.
  • FIG. 5 shows figure 5 the soil removal device 10 in the same perspective as figure 2 , but with the second side plate lowered to a maximum of 70.
  • figure 6 shows the soil removal device 10 in the same perspective as FIG figure 3 , So along the viewing direction VI in the figures 4 and 5 . Since regarding figure 3 the side shields 18 and 70 only orthogonal to the plane of the Figures 3 and 6 were moved, the representation of the side shields is 18 and 70 in figure 6 , compared to that of figure 3 , unchanged. Only the position of the lifting actuators 104 and 106 has changed, the piston rods 105 and 107 of which are now fully extended. Consequently, the relative position of the eccentric levers 64 and 94 has also changed, which have been pivoted about a pivot axis parallel to the working axis A or to the pivot axes P1 and P2. Accordingly, the relative position between the scales 112 and 114 and the indicators 116 and 118 interacting with them has changed in order to indicate to an operator working on the work vehicle V the currently set excavation depth, in this case zero.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Soil Working Implements (AREA)
  • Road Repair (AREA)
EP23154856.1A 2022-02-09 2023-02-03 Dispositif d'enlèvement de sol de culture avec plaque latérale divisée Pending EP4227464A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022103022.9A DE102022103022A1 (de) 2022-02-09 2022-02-09 Anbau-Bodenabtragsvorrichtung mit geteiltem Seitenschild

Publications (1)

Publication Number Publication Date
EP4227464A1 true EP4227464A1 (fr) 2023-08-16

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Application Number Title Priority Date Filing Date
EP23154856.1A Pending EP4227464A1 (fr) 2022-02-09 2023-02-03 Dispositif d'enlèvement de sol de culture avec plaque latérale divisée

Country Status (4)

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US (1) US20230250597A1 (fr)
EP (1) EP4227464A1 (fr)
CN (2) CN219471044U (fr)
DE (1) DE102022103022A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382084A (en) * 1993-07-28 1995-01-17 Alitec Corporation Milling drum with internal drive motor
WO2001025545A1 (fr) 1999-10-05 2001-04-12 Simex Engineering Srl Amelioration d'une reprofileuse de chaussees
DE10105475C1 (de) 2001-02-02 2002-05-29 Thuemer Landschaftsbau Gmbh Grabenfräse
WO2012116821A1 (fr) * 2011-03-01 2012-09-07 Simex S.R.L. Dispositif pour traitement, et, en particulier, pour démolition et/ou ponçage, de surfaces horizontales, verticales ou inclinées avec coupes non étagées
GB2512945A (en) * 2013-04-13 2014-10-15 Auger Torque Europ Ltd Ground planer
EP3350373B1 (fr) 2015-09-15 2021-09-15 Simex Engineering S.r.l. Équipement d'excavation pour l'excavation de surfaces

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382084A (en) * 1993-07-28 1995-01-17 Alitec Corporation Milling drum with internal drive motor
WO2001025545A1 (fr) 1999-10-05 2001-04-12 Simex Engineering Srl Amelioration d'une reprofileuse de chaussees
EP1222333B1 (fr) 1999-10-05 2004-03-17 Simex Engineering Srl Amelioration d'une reprofileuse de chaussees
DE10105475C1 (de) 2001-02-02 2002-05-29 Thuemer Landschaftsbau Gmbh Grabenfräse
WO2012116821A1 (fr) * 2011-03-01 2012-09-07 Simex S.R.L. Dispositif pour traitement, et, en particulier, pour démolition et/ou ponçage, de surfaces horizontales, verticales ou inclinées avec coupes non étagées
GB2512945A (en) * 2013-04-13 2014-10-15 Auger Torque Europ Ltd Ground planer
EP3350373B1 (fr) 2015-09-15 2021-09-15 Simex Engineering S.r.l. Équipement d'excavation pour l'excavation de surfaces

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US20230250597A1 (en) 2023-08-10
DE102022103022A1 (de) 2023-08-10
CN116575522A (zh) 2023-08-11
CN219471044U (zh) 2023-08-04

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