EP4060118B1 - Self-propelled building or mining machine - Google Patents

Self-propelled building or mining machine Download PDF

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Publication number
EP4060118B1
EP4060118B1 EP22161844.0A EP22161844A EP4060118B1 EP 4060118 B1 EP4060118 B1 EP 4060118B1 EP 22161844 A EP22161844 A EP 22161844A EP 4060118 B1 EP4060118 B1 EP 4060118B1
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EP
European Patent Office
Prior art keywords
clearing
machine
accordance
ground surface
mining machine
Prior art date
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Application number
EP22161844.0A
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German (de)
French (fr)
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EP4060118A1 (en
EP4060118C0 (en
Inventor
Holger Thieme
Winfried Schönebeck
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
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Wirtgen GmbH
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Publication date
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Publication of EP4060118A1 publication Critical patent/EP4060118A1/en
Application granted granted Critical
Publication of EP4060118C0 publication Critical patent/EP4060118C0/en
Publication of EP4060118B1 publication Critical patent/EP4060118B1/en
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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
    • 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
    • E01C23/12—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/127—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 taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C47/00—Machines for obtaining or the removal of materials in open-pit mines

Definitions

  • the invention relates to a self-propelled construction or mining machine according to the preamble of claim 1.
  • Construction or mining machines in particular milling machines, such as surface miners, road milling machines or recyclers for processing a subsoil, are known and have a machine frame.
  • a working device in particular a milling drum, is usually provided on the machine frame for processing the subsurface.
  • the working device is mounted on the machine frame, with the working device being at least partially enclosed by a housing.
  • at least one movable side plate is often provided, which closes off the housing at least in one of the two sides of the working device, with the movable side plate resting on the ground in a floating position during work.
  • the floor covering processed with the work equipment is often not loaded onto a transport vehicle but remains on the processed area of the subsoil.
  • such machines can have a milling drum and a material conveyor consisting of conveyor belts as working equipment, via which the processed floor covering can be loaded.
  • the movable side plate does not rest on the area being worked on or on the area that is yet to be worked on. Since the milling depth is often determined using the movable side plate, this can lead to inaccuracies. This disadvantage occurs both in machines that do not have a material conveying device such as. B. have conveyor belts, as well as machines in which such a conveyor device is generally present, but is not used for the work task at hand.
  • Such a device is from the EP2050875 or US10094078 known.
  • the present invention is therefore based on the object of creating a self-propelled construction or mining machine, in particular milling machines, for processing a subsoil, in which more precise processing of the subsoil is possible.
  • the invention advantageously provides that a clearing element is arranged in front of the at least one movable side plate in the direction of travel, the clearing element having at least one clearing edge with which the clearing element can penetrate into ground material lying on the ground in front of the movable side plate and the ground material for the movable side shield clears so that the movable side shield can rest on the ground.
  • Milling machines can be, for example, surface miners, road milling machines or recyclers.
  • the present invention has the advantage that by providing an additional clearing element, the area in front of the movable side shield is cleared and the movable side shield can rest on the ground. In this way, a more precise determination of the milling depth is possible.
  • the clearing element can be pivotable about a pivot axis, the pivot axis preferably running essentially orthogonally to the direction of travel.
  • the working device can be, for example, a milling drum.
  • the milling drum can have a milling drum axis which is mounted on the machine frame.
  • the pivot axis can preferably be arranged parallel to the milling drum axis.
  • the pivot axis In the operating position, the pivot axis can be arranged horizontally and/or vertically offset from the clearing edge.
  • the clearing element can have a stowage position and an operating position.
  • the clearing element in the operating position means that the clearing element can penetrate into soil material to be cleared in front of the movable side plate or is at the level of the ground on which a driving device of the soil processing machine rests.
  • the clearing element can also be pivoted into a retracted position when it is not in the operating position. This position can also be called the stowage position or the transport position.
  • the clearing element In this stowed position, the clearing element is pivoted in such a way that the clearing element does not protrude downwards relative to the driving device of the tillage machine or is not at the level of the ground on which the driving device of the tillage machine rests.
  • the clearing element is located above the ground and therefore does not come into contact with the ground in the stowed position. In the stowed position, the clearing element cannot penetrate into the ground material lying on the ground in front of the movable side plate.
  • the pivot axis In the operating position, the pivot axis can be arranged in front of the clearing edge in the direction of travel.
  • the pivot axis can be further away from the ground than the clearing edge, at least when the clearing element is in the operating position.
  • the clearing edge can have a first contour, at least in a first clearing edge region, which is curved towards the ground in the operating position in the direction of travel.
  • this first clearing edge region Due to the contour of this first clearing edge region, the force that acts on this first clearing edge region by penetrating the ground material on the first clearing edge region can be aligned in such a way that the clearing edge digs deeper into the ground material.
  • the aligned force therefore acts in the direction of the soil material.
  • the clearing edge can have such a contour, at least in a second clearing edge region, which is curved towards the ground in the operating position in a direction opposite to the direction of travel.
  • the contour in the second clearing edge area can be shaped in such a way that the clearing element tapers towards the free end.
  • the force that acts on the second clearing edge region in the operating position by penetrating the floor material can be aligned by the contour of the second clearing edge region in such a way that the force acts upwards, i.e. away from the floor covering, and thus the clearing element moves upwards out of it Soil material presses.
  • the second clearing edge area is preferably arranged in the area of the free end of the clearing edge element. This means that just when the clearing edge element hits a solid surface in the lower area, this force, which emanates from this ground, acts on the second clearing edge area and the force is aligned by the special contour of the second clearing edge area in such a way that it pushes the clearing edge element out of the ground material.
  • upward means in a direction that acts upwards away from the ground.
  • downwards in the sense of the invention means towards the underground.
  • the first clearing edge area can be arranged above the second clearing edge area.
  • the ground on which the movable side plate rests can be an already milled area of the ground and the ground material into which the clearing element penetrates can be already milled ground material that rests on the ground.
  • the floor material can also be floor material that merely rests on the subsurface as loose floor material.
  • the center of gravity of the clearing element can be arranged in the operating position in relation to the pivot axis in such a way that the own weight of the clearing element presses the clearing element towards the ground.
  • the contour of the first clearing edge region can be shaped such that in the operating position, the force that acts on the first clearing edge region due to the penetration into the ground material is aligned in such a way that at least part of the force presses the clearing element towards the ground.
  • An actuator element can be provided that can transfer the clearing element from the operating position to the stowage position.
  • a dissimulation of the The stowed position in the operating position can be carried out without the application of additional force, for example solely by the force of gravity acting on the clearing element.
  • the adjustment of the clearing element from the stowed position to the operating position can also be carried out by the actuator element or can be supported by it.
  • an actuator element can be provided which can pivot the clearing element.
  • the actuator element can pivot the clearing element from an operating position into a stowage position.
  • the actuator element would apply a force to the clearing element such that the force pivots the clearing element away from the floor covering.
  • the actuator element can be a hydraulic or pneumatic cylinder.
  • the actuator element can also be used to apply an additional force to the clearing element in the operating position, with the force pushing the clearing element towards the ground.
  • the actuator element can then also carry out the adjustment of the clearing element from the stowed position to the operating position, or support this.
  • the clearing element is pivoted about the pivot axis that the clearing element moves away from the floor covering.
  • the horizontal portion of the force can also contribute to pivoting of the clearing element.
  • the contour of the second clearing edge region can be shaped such that in the operating position, the force that acts on the second clearing edge region due to the penetration into the ground material is aligned in such a way that at least part of the force of the clearing element is pivoted and removed from the ground.
  • the own weight and/or the force of the actuator element and/or the contour of the first and/or the second clearing edge region can be selected such that the clearing element can penetrate into the ground material that has a density that is less than a predefined density.
  • the clearing element and/or the actuator element and/or the contour of the first or second clearing edge region can be selected such that, for example, loose material is cleared away by the clearing element, with the clearing element not penetrating into firmer material.
  • comparative tests can be carried out that are tested for certain materials and different densities of the materials that are usually processed by such a self-propelled construction or mining machine, such as a surface miner. It is possible to choose individually for each individual construction or mining machine by the correct choice of the own weight and/or force of the actuator element and/or the contour of the first and/or the second clearing edge element what type of material or what density of material it will be used in Room element can still penetrate and which one cannot. This can be found out through comparative tests and adjusted accordingly for a specific series of tillage machines.
  • the force of the actuator element could also be adjustable, so that in an existing soil cultivation device it could be adjustable into which material or into which density of material the clearing element can still penetrate and which not.
  • the clearing element can be arranged on a driving device of the construction or mining machine.
  • the driving device can be, for example, a chain drive or wheels of the construction or mining machine.
  • the construction or mining machine can also have at least two clearing elements, with one clearing element being provided on each side of the machine, i.e. in front of each of the side shields.
  • the clearing elements can then be pivoted individually into the operating position or stowage position on each of the two sides of the construction or mining machine as required.
  • the work equipment can work on the ground.
  • Fig. 1 shows a self-propelled construction or mining machine 1.
  • the self-propelled construction or mining machine 1 can be, for example, a surface miner.
  • the self-propelled construction or mining machine 1 preferably has one Machine frame 2 on.
  • a working device can be arranged on the machine frame 2.
  • the working device 6 can preferably be a milling drum.
  • the working device 6 is at least partially surrounded by a housing 10.
  • At least one movable side plate 8 is provided, which closes off the housing 10 from at least one of the two sides of the working device 6, the movable side plate 8 resting on the surface 11 in a floating position during working operation.
  • In floating position means that the movable side plate 8 follows the contour of the ground or the floor material on which it rests, due to its own weight or slight pressure applied by an adjusting device (not shown), in order to shield the housing 10 from the outside.
  • the clearing element 12 is arranged on one of the driving devices 4 in the direction of travel A in front of the movable side plate 8.
  • the room element is in Fig. 2 shown in more detail.
  • the clearing element 12 is arranged in front of the at least one movable side plate 8 in the direction of travel A, the clearing element 12 having at least one clearing edge 14 with which the clearing element 12 can penetrate into ground material 16 lying on the ground in front of the movable side plate and the ground material 16 for that movable side shield 8 clears so that the movable side shield 8 can rest on the surface 11.
  • the clearing element 12 can be pivotable about a pivot axis 18, the pivot axis 18 preferably running essentially orthogonally to the direction of travel A. If the working device 6 is a milling drum, this milling drum 6 can have a milling drum axis 21 which is mounted on the machine frame 2.
  • the pivot axis 18 is preferably arranged parallel to the milling drum axis 21.
  • the pivot axis 18 is arranged horizontally and/or vertically offset from the clearing edge 14 in the operating position.
  • the pivot axis 18 is arranged in front of the clearing edge 14 in the direction of travel A.
  • the pivot axis 18 is above the clearing edge in the present exemplary embodiment 14 arranged.
  • above the clearing edge means in the direction away from the ground.
  • the clearing element 12 is shown in the operating position. In the operating position means that the clearing element 12 penetrates into the floor material 16. This is always the case when the clearing element 12 protrudes downwards relative to the driving device 4 or rests on the surface on which the driving devices stand.
  • the center of gravity S of the space element 12 is in Fig. 2 shown.
  • the center of gravity S of the clearing element 12 is arranged in relation to the pivot axis 18 in such a way that the own weight of the clearing element 12 presses towards the floor covering.
  • An actuator element 19 is preferably also provided, which in the operating position applies an additional force to the clearing element 12, the force pushing the clearing element 12 towards the ground.
  • the actuator element 19 can be, for example, a hydraulic or pneumatic cylinder.
  • the actuator element 19 can also be used to move the clearing element into the stowed position. In the stowed position, the clearing element 12 does not protrude downwards relative to the lower edge of the driving device.
  • the clearing element 12 becomes so pivoted about the pivot axis so that the clearing element 12 moves away from the surface 11.
  • the clearing element 12 should also be set or selected in such a way that the clearing element 12 does not penetrate a solid material, as the clearing element 12 should only clear loose material to the side and should not penetrate into the subsurface 11 to be milled.
  • the contour of the clearing edge 14 can also be shaped in such a way that the clearing element 12 is supported in penetrating into loose ground material on the one hand and on the other hand in being pivoted away from ground material 16 that is too solid.
  • the clearing edge 14 has a first and second clearing edge region 20, 22.
  • the first clearing edge region 20 can be shaped in such a way that in the operating position, the force that acts on the first clearing edge region 20 due to the penetration into the ground material 16 is aligned in such a way that at least part of the force presses the clearing element 12 towards the ground.
  • the clearing edge has such a contour, at least in the first clearing edge region 20, which is curved towards the ground in the operating position in the direction of travel A.
  • the clearing edge 14 can have at least one second clearing edge region 22, which has such a contour that is curved towards the ground in the operating position in a direction opposite to the direction of travel A.
  • the second clearing edge region 22 can be shaped such that the clearing element 12 tapers towards the free end 24.
  • the clearing edge area 20 is preferably arranged above the second clearing edge area 22.
  • the contour of the second clearing edge region 22 can be shaped such that in the operating position, the force that acts on the second clearing edge region 22 due to the penetration into the ground material 16 is aligned such that at least part of the force pivots the clearing element 12 and removes it from the ground .
  • the own weight and/or the force of the actuator element 19 and/or the contour of the first and/or second clearing edge region 20, 22 can thus be adjusted in such a way be selectable that the clearing element 12 can penetrate into the floor material 16, which can have a density that is less than a predefined density.
  • the actual dead weight, the force of the actuator element and the contour of the first and/or second clearing edge region 20, 22 are tested through comparison tests with different contours, different dead weights and forces of actuator moments and different materials with different densities and then selected accordingly.
  • the clearing element 12 is, as shown, preferably arranged on a driving device 4 of the construction or mining machine 1.
  • FIG. 3 A schematic image is shown which schematically represents the driving devices 4, which rest on the surface to be milled, and the clearing element 12.
  • the clearing element like the floor material 16, clears in the direction of travel A in front of the movable side plate 8.
  • the clearing element 12 does not penetrate into the area 11a of the subsurface 11, over which milling has already taken place.
  • Fig. 4 shows schematically the example in which the soil material 16, which rests on the already milled area 11a of the subsoil, has already been cleared away.
  • the movable side plate 8 can rest on area 11a of the subsurface 11 over which milling has already been carried out. The milling depth can therefore be determined using the movable side plate 8.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Road Repair (AREA)
  • Soil Working Implements (AREA)
  • Shovels (AREA)

Description

Die Erfindung betrifft eine selbstfahrende Bau- oder Gewinnungsmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a self-propelled construction or mining machine according to the preamble of claim 1.

Es sind Bau- oder Gewinnungsmaschinen, insbesondere Fräsmaschine, wie z.B. Surface Miner, Straßenfräse oder Recycler zum Bearbeiten eines Untergrunds bekannt, die einen Maschinenrahmen aufweisen. An dem Maschinenrahmen ist üblicherweise eine Arbeitseinrichtung, insbesondere eine Fräswalze zum Bearbeiten des Untergrunds vorgesehen. Die Arbeitseinrichtung ist an dem Maschinenrahmen gelagert, wobei die Arbeitseinrichtung von einem Gehäuse zumindest teilweise umschlossen ist. Ferner ist häufig zumindest ein bewegliches Seitenschild vorgesehen, das das Gehäuse zumindest in einer der beiden Seiten der Arbeitseinrichtung abschließt, wobei das bewegliche Seitenschild im Arbeitsbetrieb in Schwimmstellung auf dem Untergrund aufliegt.Construction or mining machines, in particular milling machines, such as surface miners, road milling machines or recyclers for processing a subsoil, are known and have a machine frame. A working device, in particular a milling drum, is usually provided on the machine frame for processing the subsurface. The working device is mounted on the machine frame, with the working device being at least partially enclosed by a housing. Furthermore, at least one movable side plate is often provided, which closes off the housing at least in one of the two sides of the working device, with the movable side plate resting on the ground in a floating position during work.

Bei selbstfahrenden Bau- oder Gewinnungsmaschinen, insbesondere Surface Minern, wird der mit der Arbeitseinrichtung bearbeitete Bodenbelag, häufig nicht auf ein Transportfahrzeug verladen sondern verbleibt auf dem bearbeiteten Bereich des Untergrunds liegen. Grundsätzlich kann es sein, dass solche Maschinen als Arbeitseinrichtung eine Fräswalze und eine aus Transportbändern bestehende Materialfördereinrichtung aufweisen können über die der bearbeitete Bodenbelag verladen werden kann.In the case of self-propelled construction or mining machines, in particular surface miners, the floor covering processed with the work equipment is often not loaded onto a transport vehicle but remains on the processed area of the subsoil. In principle, such machines can have a milling drum and a material conveyor consisting of conveyor belts as working equipment, via which the processed floor covering can be loaded.

Es existieren jedoch auch Maschinen, die als Arbeitseinrichtung eine Fräswalze aufweisen und das abgefräste Material nicht über Transportbänder abtransportieren, sondern das Material zum späteren Abtransport oder Weiterbearbeitung bearbeiteten Bereich des Untergrunds belassen. In einem solchen Betrieb ist das die Arbeitseinrichtung umgebendes Gehäuse in einem Bereich hinter der Fräswalze nicht bis zu Untergrund verschlossen, sondern das bearbeitete Material kann hinter der Fräswalze das Gehäuse verlassen und verbleibt nach der Bearbeitung auf dem Untergrund. Wenn die Bau- oder Gewinnungsmaschine neben der ersten Frässpur eine zweite Frässpur fräst, so besteht häufig das Problem, dass das zumindest eine bewegliche Seitenschild auf dem bereits abgefrästen Bodenmaterial aufliegt und nicht auf dem Bereich des Untergrunds, der bereits bearbeitet worden ist. Das bewegliche Seitenschild liegt weder auf dem bearbeiteten Bereich noch auf dem noch zu bearbeiteten Bereich auf. Da mittels des beweglichen Seitenschilds häufig die Frästiefe ermittelt wird, kann es dadurch zu Ungenauigkeiten kommen. Dieser Nachteil tritt sowohl bei Maschinen auf, die nicht über eine Materialfördereinrichtung wie z. B. Transportbänder verfügen, als auch bei Maschinen, bei denen eine solche Fördereinrichtung grundsätzlich vorhanden ist, diese jedoch für die vorliegende Arbeitsaufgabe nicht verwendet wird.However, there are also machines that have a milling drum as a working device and do not transport the milled material away via conveyor belts, but rather leave the material in the processed area of the subsurface for later removal or further processing. In such an operation, the housing surrounding the working device is not closed to the ground in an area behind the milling drum, but the processed material can leave the housing behind the milling drum and remains on the ground after processing. If the construction or mining machine mills a second milling track in addition to the first milling track, there is often the problem that the at least one movable side plate rests on the ground material that has already been milled away and not on the area of the subsoil that has already been processed. The movable side plate does not rest on the area being worked on or on the area that is yet to be worked on. Since the milling depth is often determined using the movable side plate, this can lead to inaccuracies. This disadvantage occurs both in machines that do not have a material conveying device such as. B. have conveyor belts, as well as machines in which such a conveyor device is generally present, but is not used for the work task at hand.

Eine derartige Vorrichtung ist aus der EP2050875 oder US10094078 bekannt.Such a device is from the EP2050875 or US10094078 known.

Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, eine selbstfahrende Bau- oder Gewinnungsmaschine, insbesondere Fräsmaschinen , zum Bearbeiten eines Untergrundes zu schaffen, bei dem eine genauere Bearbeitung des Untergrunds möglich ist.The present invention is therefore based on the object of creating a self-propelled construction or mining machine, in particular milling machines, for processing a subsoil, in which more precise processing of the subsoil is possible.

Zur Lösung dieser Aufgabe dienen die Merkmale des Anspruchs 1.The features of claim 1 serve to solve this problem.

Die Erfindung sieht in vorteilhafter Weise vor, dass ein Räumelement in Fahrtrichtung vor dem zumindest einen beweglichen Seitenschild angeordnet ist, wobei das Räumelement zumindest eine Räumkante aufweist, mit der das Räumelement in auf dem Untergrund vor dem beweglichen Seitenschild liegendes Bodenmaterial eindringen kann und das Bodenmaterial für das bewegliche Seitenschild räumt, so dass das bewegliche Seitenschild auf dem Untergrund aufliegen kann. Fräsmaschinen können beispielsweise Surface Miner, Straßenfräse oder Recycler sein.The invention advantageously provides that a clearing element is arranged in front of the at least one movable side plate in the direction of travel, the clearing element having at least one clearing edge with which the clearing element can penetrate into ground material lying on the ground in front of the movable side plate and the ground material for the movable side shield clears so that the movable side shield can rest on the ground. Milling machines can be, for example, surface miners, road milling machines or recyclers.

Die vorliegende Erfindung hat den Vorteil, dass durch Vorsehen eines zusätzlichen Räumelements der Bereich vor dem beweglichen Seitenschild freigeräumt wird und das bewegliche Seitenschild auf dem Untergrund aufliegen kann. Auf diese Weise ist eine exaktere Bestimmung der Frästiefe möglich.The present invention has the advantage that by providing an additional clearing element, the area in front of the movable side shield is cleared and the movable side shield can rest on the ground. In this way, a more precise determination of the milling depth is possible.

Das Räumelement kann um eine Schwenkachse schwenkbar sein, wobei die Schwenkachse vorzugsweise im Wesentlichen orthogonal zur Fahrtrichtung verläuft.The clearing element can be pivotable about a pivot axis, the pivot axis preferably running essentially orthogonally to the direction of travel.

Die Arbeitseinrichtung kann beispielsweise eine Fräswalze sein. Die Fräswalze kann eine Fräswalzenachse aufweisen, die an dem Maschinenrahmen gelagert ist. Die Schwenkachse kann vorzugsweise parallel zu der Fräswalzenachse angeordnet sein.The working device can be, for example, a milling drum. The milling drum can have a milling drum axis which is mounted on the machine frame. The pivot axis can preferably be arranged parallel to the milling drum axis.

Die Schwenkachse kann in Betriebsstellung horizontal und/oder vertikal versetzt zu der Räumkante angeordnet sein.In the operating position, the pivot axis can be arranged horizontally and/or vertically offset from the clearing edge.

Das Räumelement kann eine Verstauungsstellung und eine Betriebsstellung aufweisen.The clearing element can have a stowage position and an operating position.

In Betriebsstellung bedeutet gemäß der vorliegenden Erfindung, dass das Räumelement in zu räumendes Bodenmaterial vor dem beweglichen Seitenschild eindringen kann oder sich auf Höhe des Untergrunds befindet, auf dem eine Fahreinrichtung der Bodenbearbeitungsmaschine aufliegt. Das Räumelement kann auch, wenn es nicht in Betriebsstellung ist, in eine eingeschwenkte Stellung verschwenkt werden. Diese Stellung kann auch Verstaustellung oder auch Transportstellung genannt werden. In dieser Verstaustellung ist das Räumelement derart eingeschwenkt, dass das Räumelement nicht gegenüber der Fahreinrichtung der Bodenbearbeitungsmaschine nach unten hervorsteht oder sich nicht auf Höhe des Untergrunds befindet, auf dem die Fahreinrichtung der Bodenbearbeitungsmaschine aufliegt. Insbesondere findet sich das Räumelement oberhalb des Untergrundes und kommt in der Verstaustellung somit nicht mit dem Untergrund in Kontakt. In der Verstaustellung kann das Räumelement somit nicht in auf dem Untergrund liegendes Bodenmaterial vor dem beweglichen Seitenschild eindringen.According to the present invention, in the operating position means that the clearing element can penetrate into soil material to be cleared in front of the movable side plate or is at the level of the ground on which a driving device of the soil processing machine rests. The clearing element can also be pivoted into a retracted position when it is not in the operating position. This position can also be called the stowage position or the transport position. In this stowed position, the clearing element is pivoted in such a way that the clearing element does not protrude downwards relative to the driving device of the tillage machine or is not at the level of the ground on which the driving device of the tillage machine rests. In particular, the clearing element is located above the ground and therefore does not come into contact with the ground in the stowed position. In In the stowed position, the clearing element cannot penetrate into the ground material lying on the ground in front of the movable side plate.

Die Schwenkachse kann in Betriebsstellung in Fahrtrichtung vor der Räumkante angeordnet sein.In the operating position, the pivot axis can be arranged in front of the clearing edge in the direction of travel.

Die Schwenkachse kann, wenigstens wenn das Räumelement in Betriebsstellung ist, weiter von dem Untergrund entfernt sein als die Räumkante.The pivot axis can be further away from the ground than the clearing edge, at least when the clearing element is in the operating position.

Die Räumkante kann zumindest in einem ersten Räumkantenbereich eine erste Kontur aufweisen, die in Richtung Untergrund in Betriebsstellung in Fahrtrichtung gekrümmt ist.The clearing edge can have a first contour, at least in a first clearing edge region, which is curved towards the ground in the operating position in the direction of travel.

Durch die Kontur dieses ersten Räumkantenbereichs kann die Kraft, die auf diesen ersten Räumkantenbereich durch Eindringen in das Bodenmaterial auf den ersten Räumkantenbereich wirkt, derart ausgerichtet werden, dass sich die Räumkante tiefer in das Bodenmaterial eingräbt. Die ausgerichtete Kraft wirkt somit in Richtung Bodenmaterial.Due to the contour of this first clearing edge region, the force that acts on this first clearing edge region by penetrating the ground material on the first clearing edge region can be aligned in such a way that the clearing edge digs deeper into the ground material. The aligned force therefore acts in the direction of the soil material.

Die Räumkante kann zumindest in einem zweiten Räumkantenbereich eine derartige Kontur aufweisen, die in Richtung Untergrund in Betriebsstellung in eine Richtung entgegen der Fahrtrichtung gekrümmt ist.The clearing edge can have such a contour, at least in a second clearing edge region, which is curved towards the ground in the operating position in a direction opposite to the direction of travel.

Die Kontur im zweiten Räumkantenbereich kann derart geformt sein, dass das Räumelement sich zum freien Ende hin verjüngt.The contour in the second clearing edge area can be shaped in such a way that the clearing element tapers towards the free end.

Die Kraft, die in Betriebsstellung durch Eindringen in das Bodenmaterial auf den zweiten Räumkantenbereich wirkt, kann durch die Kontur des zweiten Räumkantenbereichs derart ausgerichtet werden, dass die Kraft nach oben, also weg von dem Bodenbelag wirkt und somit das Räumelement in Richtung nach oben aus dem Bodenmaterial drückt.The force that acts on the second clearing edge region in the operating position by penetrating the floor material can be aligned by the contour of the second clearing edge region in such a way that the force acts upwards, i.e. away from the floor covering, and thus the clearing element moves upwards out of it Soil material presses.

Der zweite Räumkantenbereich ist vorzugsweise im Bereich des freien Endes des Räumkantenelements angeordnet. Dies führt dazu, dass gerade, wenn das Räumkantenelement im unteren Bereich auf einen festen Untergrund trifft, diese Kraft, die von diesem Untergrund ausgeht, auf den zweiten Räumkantenbereich wirkt und durch die spezielle Kontur des zweiten Räumkantenbereichs die Kraft derart ausgerichtet wird, dass sie das Räumkantenelement aus dem Bodenmaterial herausdrückt.The second clearing edge area is preferably arranged in the area of the free end of the clearing edge element. This means that just when the clearing edge element hits a solid surface in the lower area, this force, which emanates from this ground, acts on the second clearing edge area and the force is aligned by the special contour of the second clearing edge area in such a way that it pushes the clearing edge element out of the ground material.

Nach oben ist im Sinne der vorliegenden Erfindung bedeutet in einer Richtung, die von dem Untergrund weggerichtet nach oben wirkt. Nach unten im Sinne der Erfindung ist in Richtung Untergrund gemeint.In the context of the present invention, upward means in a direction that acts upwards away from the ground. Downwards in the sense of the invention means towards the underground.

Der erste Räumkantenbereich kann oberhalb des zweiten Räumkantenbereichs angeordnet sein.The first clearing edge area can be arranged above the second clearing edge area.

Der Untergrund, auf dem das bewegliche Seitenschild aufliegt, kann bereits gefräster Bereich des Untergrunds sein und das Bodenmaterial, in das das Räumelement eindringt, kann bereits gefrästes Bodenmaterial sein, das auf dem Untergrund aufliegt.The ground on which the movable side plate rests can be an already milled area of the ground and the ground material into which the clearing element penetrates can be already milled ground material that rests on the ground.

Alternativ kann das Bodenmaterial jedoch auch Bodenmaterial sein, das lediglich als lockeres Bodenmaterial auf dem Untergrund aufliegt.Alternatively, the floor material can also be floor material that merely rests on the subsurface as loose floor material.

Der Schwerpunkt des Räumelements kann in Betriebsstellung in Bezug zu der Schwenkachse derart angeordnet sein, dass das Eigengewicht des Räumelements das Räumelement in Richtung Untergrund drückt.The center of gravity of the clearing element can be arranged in the operating position in relation to the pivot axis in such a way that the own weight of the clearing element presses the clearing element towards the ground.

Die Kontur des ersten Räumkantenbereichs kann derart geformt sein, dass in Betriebsstellung die Kraft, die aufgrund des Eindringens in das Bodenmaterial auf den ersten Räumkantenbereich wirkt, derart ausgerichtet wird, dass zumindest ein Teil der Kraft das Räumelement in Richtung Untergrund drückt.The contour of the first clearing edge region can be shaped such that in the operating position, the force that acts on the first clearing edge region due to the penetration into the ground material is aligned in such a way that at least part of the force presses the clearing element towards the ground.

Wie bereits oben erläutert, kann dies dazu führen, dass das Räumelement weiter in das Bodenmaterial reingedrückt wird und sich somit teilweise das Bodenmaterial eingräbt.As already explained above, this can lead to the clearing element being pushed further into the floor material and thus partially burying the floor material.

Es kann ein Aktuatorelement vorgesehen sein, dass das Räumelement von der Betriebsstellung in die Verstaustellung überführen kann. Eine Verstellung von der Verstaustellung in die Betriebsstellung kann ohne das Aufbringen einer zusätzlichen Kraft, zum Beispiel alleine durch die auf das Räumelement wirkende Schwerkraft erfolgen. Die Verstellung des Räumelements von der Verstaustellung in die Betriebsstellung kann aber auch durch das Aktuatorelement erfolgen, oder von diesem unterstützt werden.An actuator element can be provided that can transfer the clearing element from the operating position to the stowage position. A dissimulation of the The stowed position in the operating position can be carried out without the application of additional force, for example solely by the force of gravity acting on the clearing element. The adjustment of the clearing element from the stowed position to the operating position can also be carried out by the actuator element or can be supported by it.

Insbesondere kann ein Aktuatorelement vorgesehen sein, das das Räumelement verschwenken kann. Das Aktuatorelement kann das Räumelement von einer Betriebsstellung in eine Verstaustellung verschwenken. In diesem Fall würde das Aktuatorelement eine Kraft auf das Räumelement derart aufbringen, dass die Kraft das Räumelement von dem Bodenbelag weg verschwenkt.In particular, an actuator element can be provided which can pivot the clearing element. The actuator element can pivot the clearing element from an operating position into a stowage position. In this case, the actuator element would apply a force to the clearing element such that the force pivots the clearing element away from the floor covering.

Das Aktuatorelement kann ein Hydraulik- oder Pneumatikzylinder sein.The actuator element can be a hydraulic or pneumatic cylinder.

Das Aktuatorelement kann auch dafür verwendet werden, dass in Betriebsstellung eine zusätzliche Kraft auf das Räumelement aufbringt, wobei die Kraft das Räumelement in Richtung Untergrund drückt. Das Aktuatorelement kann dann auch die Verstellung des Räumelements von der Verstaustellung in die Betriebsstellung durchführen, oder diese unterstützen.The actuator element can also be used to apply an additional force to the clearing element in the operating position, with the force pushing the clearing element towards the ground. The actuator element can then also carry out the adjustment of the clearing element from the stowed position to the operating position, or support this.

Sobald der horizontale und/oder vertikale Anteil der Kraft, die auf die Räumkante in Betriebsstellung aufgrund des Eindringens in den Boden wirkt, größer ist als die aufgrund des Eigengewichts und/oder des Aktuatorelements ausgeübte Kraft auf das Räumelement, das Räumelement derart um die Schwenkachse verschwenkt, dass sich das Räumelement von dem Bodenbelag entfernt.As soon as the horizontal and/or vertical portion of the force acting on the clearing edge in the operating position due to the penetration into the ground is greater than the force exerted on the clearing element due to its own weight and/or the actuator element, the clearing element is pivoted about the pivot axis that the clearing element moves away from the floor covering.

Durch eine versetzte Anordnung der Schwenkachse zu der Räumkante kann auch der horizontale Anteil der Kraft zu einem Verschwenken des Räumelements beitragen.By arranging the pivot axis offset from the clearing edge, the horizontal portion of the force can also contribute to pivoting of the clearing element.

Dies erfolgt beispielsweise dann, wenn das Räumelement auf ein hartes Hindernis im Bodenbelag trifft. In diesem Fall ist der horizontale und/oder vertikale Anteil der Kraft so groß, dass das Räumelement derart verschwenkt wird, dass es sich vom Bodenbelag entfernt.This happens, for example, when the clearing element hits a hard obstacle in the floor covering. In this case, the horizontal and/or vertical portion of the force is so great that the clearing element is pivoted in such a way that it moves away from the floor covering.

Die Kontur des zweiten Räumkantenbereichs kann derart geformt sein, dass in Betriebsstellung die Kraft, die aufgrund des Eindringens in das Bodenmaterial auf den zweiten Räumkantenbereich wirkt, derart ausgerichtet wird, dass zumindest ein Teil der Kraft des Räumelements verschwenkt und vom Untergrund entfernt.The contour of the second clearing edge region can be shaped such that in the operating position, the force that acts on the second clearing edge region due to the penetration into the ground material is aligned in such a way that at least part of the force of the clearing element is pivoted and removed from the ground.

Das Eigengewicht und/oder die Kraft des Aktuatorelements und/oder die Kontur des ersten und/oder des zweiten Räumkantenbereichs können derart wählbar sein, dass das Räumelement in das Bodenmaterial eindringen kann, das eine Dichte aufweist, die geringer ist als eine vordefinierte Dichte.The own weight and/or the force of the actuator element and/or the contour of the first and/or the second clearing edge region can be selected such that the clearing element can penetrate into the ground material that has a density that is less than a predefined density.

Auf diese Weise kann das Räumelement und/oder das Aktuatorelement und/oder die Kontur des ersten oder des zweiten Räumkantenbereichs derart gewählt werden, dass z.B. lockeres Material von dem Räumelement weggeräumt wird, wobei das Räumelement nicht in festeres Material eindringt.In this way, the clearing element and/or the actuator element and/or the contour of the first or second clearing edge region can be selected such that, for example, loose material is cleared away by the clearing element, with the clearing element not penetrating into firmer material.

Es können beispielsweise Vergleichsversuche gemacht werden, die für bestimmte Materialien und verschiedene Dichten der Materialien getestet werden, die üblicherweise von einer solchen selbstfahrenden Bau- oder Gewinnungsmaschine, wie beispielsweise einem Surface Miner, bearbeitet werden. Dabei kann individuell für jede einzelne Bau- oder Gewinnungsmaschine durch die richtige Wahl des Eigengewichts und/oder Kraft des Aktuatorelements und/oder der Kontur des ersten und/oder des zweiten Räumkantenelements gewählt werden, in welche Art von Material bzw. welche Dichte von Material das Räumelement noch eindringen kann und in welches nicht. Dies kann durch Vergleichsversuche herausgefunden und für eine bestimmte Baureihe von Bodenbearbeitungsmaschinen entsprechend eingestellt werden.For example, comparative tests can be carried out that are tested for certain materials and different densities of the materials that are usually processed by such a self-propelled construction or mining machine, such as a surface miner. It is possible to choose individually for each individual construction or mining machine by the correct choice of the own weight and/or force of the actuator element and/or the contour of the first and/or the second clearing edge element what type of material or what density of material it will be used in Room element can still penetrate and which one cannot. This can be found out through comparative tests and adjusted accordingly for a specific series of tillage machines.

Die Kraft des Aktuatorelements könnte auch verstellbar sein, so dass bei einer bestehenden Bodenbearbeitungsvorrichtung es verstellbar sein könnte, in welches Material bzw. in welche Dichte von Material das Räumelement noch eindringen kann und welches nicht.The force of the actuator element could also be adjustable, so that in an existing soil cultivation device it could be adjustable into which material or into which density of material the clearing element can still penetrate and which not.

Das Räumelement kann an einer Fahreinrichtung der Bau- oder Gewinnungsmaschine angeordnet sein.The clearing element can be arranged on a driving device of the construction or mining machine.

Die Fahreinrichtung kann beispielsweise ein Kettenlaufwerk oder Räder der Bau- oder Gewinnungsmaschine sein.The driving device can be, for example, a chain drive or wheels of the construction or mining machine.

Die Bau- oder Gewinnungsmaschine kann auch mindestens zwei Räumelemente aufweisen, wobei auf jeder Seite der Maschine, also vor jedem der Seitenschilde ein Räumelement vorgesehen ist. Die Räumelemente können dann auf jeder der beiden Seiten der Bau- oder Gewinnungsmaschine einzeln je nach Bedarf in Betriebsstellung oder Verstaustellung verschwenkt werden.The construction or mining machine can also have at least two clearing elements, with one clearing element being provided on each side of the machine, i.e. in front of each of the side shields. The clearing elements can then be pivoted individually into the operating position or stowage position on each of the two sides of the construction or mining machine as required.

In Schwimmstellung bedeutet, dass das bewegliche Seitenschild der Kontur des Untergrunds bzw. des Bodenmaterials, auf dem es aufliegt, aufgrund von Eigengewicht oder aufgebrachten leichten Druck folgt, um das Gehäuse nach außen abzuschirmen.In floating position means that the movable side shield follows the contour of the ground or floor material on which it rests due to its own weight or applied slight pressure in order to shield the housing from the outside.

Wenn das bewegliche Seitenschild im Arbeitsbetrieb in Schwimmstellung auf dem Untergrund aufliegt, kann die Arbeitseinrichtung den Untergrund bearbeiten.If the movable side plate rests on the ground in a floating position during work, the work equipment can work on the ground.

Im Folgenden wird unter Bezugnahme auf die Zeichnungen ein Ausführungsbeispiel der vorliegenden Erfindung näher erläutert.An exemplary embodiment of the present invention will be explained in more detail below with reference to the drawings.

Es zeigen schematisch:

Fig. 1
eine selbstfahrende Bau- oder Gewinnungsmaschine,
Fig. 2
ein erfindungsgemäßes Räumelement,
Fig. 3
eine schematische Ansicht des Eindringens des Räumelements in das Bodenmaterial, und
Fig. 4
eine schematische Ansicht auf das bewegliche Seitenschild.
It shows schematically:
Fig. 1
a self-propelled construction or mining machine,
Fig. 2
a clearing element according to the invention,
Fig. 3
a schematic view of the penetration of the clearing element into the floor material, and
Fig. 4
a schematic view of the movable side plate.

Fig. 1 zeigt eine selbstfahrende Bau- oder Gewinnungsmaschine 1. Die selbstfahrende Bau- oder Gewinnungsmaschine 1 kann beispielsweise ein Surface Miner sein. Die selbstfahrende Bau- oder Gewinnungsmaschine 1 weist vorzugsweise einen Maschinenrahmen 2 auf. An dem Maschinenrahmen 2 kann eine Arbeitseinrichtung angeordnet sein. Die Arbeitseinrichtung 6 kann vorzugweise eine Fräswalze sein. Die Arbeitseinrichtung 6 ist von einem Gehäuse 10 zumindest teilweise umgeben. Es ist zumindest ein bewegliches Seitenschild 8 vorgesehen, das das Gehäuse 10 zumindest von einer der beiden Seiten der Arbeitseinrichtung 6 abschließt, wobei das bewegliche Seitenschild 8 im Arbeitsbetrieb in Schwimmstellung auf dem Untergrund 11 aufliegt. Fig. 1 shows a self-propelled construction or mining machine 1. The self-propelled construction or mining machine 1 can be, for example, a surface miner. The self-propelled construction or mining machine 1 preferably has one Machine frame 2 on. A working device can be arranged on the machine frame 2. The working device 6 can preferably be a milling drum. The working device 6 is at least partially surrounded by a housing 10. At least one movable side plate 8 is provided, which closes off the housing 10 from at least one of the two sides of the working device 6, the movable side plate 8 resting on the surface 11 in a floating position during working operation.

In Schwimmstellung bedeutet, dass das bewegliche Seitenschild 8 der Kontur des Untergrunds bzw. des Bodenmaterials, auf dem es aufliegt, aufgrund von Eigengewicht oder von einer nicht dargestellten Verstelleinrichtung aufgebrachten leichten Druck folgt, um das Gehäuse 10 nach außen abzuschirmen.In floating position means that the movable side plate 8 follows the contour of the ground or the floor material on which it rests, due to its own weight or slight pressure applied by an adjusting device (not shown), in order to shield the housing 10 from the outside.

Das erfindungsgemäße Räumelement 12 ist im vorliegenden Ausführungsbeispiel an einer der Fahreinrichtungen 4 in Fahrtrichtung A vor dem beweglichen Seitenschild 8 angeordnet.In the present exemplary embodiment, the clearing element 12 according to the invention is arranged on one of the driving devices 4 in the direction of travel A in front of the movable side plate 8.

Das Räumelement ist in Fig. 2 näher dargestellt. Das Räumelement 12 ist in Fahrtrichtung A vor dem zumindest einen beweglichen Seitenschild 8 angeordnet, wobei das Räumelement 12 zumindest eine Räumkante 14 aufweist, mit der das Räumelement 12 in auf dem Untergrund vor dem beweglichen Seitenschild liegendes Bodenmaterial 16 eindringen kann und das Bodenmaterial 16 für das bewegliche Seitenschild 8 räumt, so dass das bewegliche Seitenschild 8 auf dem Untergrund 11 aufliegen kann. Das Räumelement 12 kann um eine Schwenkachse 18 schwenkbar sein, wobei die Schwenkachse 18 vorzugsweise im Wesentlichen orthogonal zur Fahrtrichtung A verläuft. Sofern die Arbeitseinrichtung 6 eine Fräswalze ist, kann diese Fräswalze 6 eine Fräswalzenachse 21 aufweisen, die an dem Maschinenrahmen 2 gelagert ist. Die Schwenkachse 18 ist vorzugsweise parallel zu der Fräswalzenachse 21 angeordnet.The room element is in Fig. 2 shown in more detail. The clearing element 12 is arranged in front of the at least one movable side plate 8 in the direction of travel A, the clearing element 12 having at least one clearing edge 14 with which the clearing element 12 can penetrate into ground material 16 lying on the ground in front of the movable side plate and the ground material 16 for that movable side shield 8 clears so that the movable side shield 8 can rest on the surface 11. The clearing element 12 can be pivotable about a pivot axis 18, the pivot axis 18 preferably running essentially orthogonally to the direction of travel A. If the working device 6 is a milling drum, this milling drum 6 can have a milling drum axis 21 which is mounted on the machine frame 2. The pivot axis 18 is preferably arranged parallel to the milling drum axis 21.

Die Schwenkachse 18 ist in Betriebsstellung horizontal und/oder vertikal versetzt zu der Räumkante 14 angeordnet. Die Schwenkachse 18 ist im vorliegenden Ausführungsbeispiel in Fahrtrichtung A vor der Räumkante 14 angeordnet. Ferner ist die Schwenkachse 18 ist im vorliegenden Ausführungsbeispiel oberhalb der Räumkante 14 angeordnet. Oberhalb der Räumkante bedeutet in der vorliegenden Erfindung in Richtung weg von dem Untergrund. In der vorliegenden Fig. ist das Räumelement 12 in Betriebsstellung dargestellt. In Betriebsstellung bedeutet, dass das Räumelement 12 in das Bodenmaterial 16 eindringt. Die ist immer dann der Fall, wenn das Räumelement 12 gegenüber der Fahreinrichtung 4 nach unten hervorsteht oder auf dem Untergrund aufliegt, auf dem die Fahreinrichtungen aufstehen.The pivot axis 18 is arranged horizontally and/or vertically offset from the clearing edge 14 in the operating position. In the present exemplary embodiment, the pivot axis 18 is arranged in front of the clearing edge 14 in the direction of travel A. Furthermore, the pivot axis 18 is above the clearing edge in the present exemplary embodiment 14 arranged. In the present invention, above the clearing edge means in the direction away from the ground. In the present figure, the clearing element 12 is shown in the operating position. In the operating position means that the clearing element 12 penetrates into the floor material 16. This is always the case when the clearing element 12 protrudes downwards relative to the driving device 4 or rests on the surface on which the driving devices stand.

Der Schwerpunkt S des Räumelements 12 ist in Fig. 2 dargestellt. Der Schwerpunkt S des Räumelements 12 ist in Bezug zu der Schwenkachse 18 derart angeordnet, dass das Eigengewicht des Räumelements 12 in Richtung Bodenbelag drückt.The center of gravity S of the space element 12 is in Fig. 2 shown. The center of gravity S of the clearing element 12 is arranged in relation to the pivot axis 18 in such a way that the own weight of the clearing element 12 presses towards the floor covering.

Es ist vorzugsweise auch ein Aktuatorelement 19 vorgesehen, das in Betriebsstellung eine zusätzliche Kraft auf das Räumelement 12 aufbringt, wobei die Kraft das Räumelement 12 in Richtung Untergrund drückt. Das Aktuatorelement 19 kann beispielsweise ein Hydraulik- oder Pneumatikzylinder sein. Das Aktuatorelement 19 kann auch dafür verwendet werden, das Räumelement in die Verstaustellung zu verschenken. Bei der Verstaustellung steht das Räumelement 12 nicht gegenüber der unteren Kante der Fahreinrichtung nach unten hervor.An actuator element 19 is preferably also provided, which in the operating position applies an additional force to the clearing element 12, the force pushing the clearing element 12 towards the ground. The actuator element 19 can be, for example, a hydraulic or pneumatic cylinder. The actuator element 19 can also be used to move the clearing element into the stowed position. In the stowed position, the clearing element 12 does not protrude downwards relative to the lower edge of the driving device.

Sobald der horizontale und/oder vertikale Anteil der Kraft, die in Betriebsstellung auf die Räumkante 14 aufgrund des Eindringens in den Boden wirkt, größer ist als die aufgrund des Eigengewichts und/oder des Aktuatorelements 19 ausgeübte Kraft auf das Räumelement 12, das Räumelement 12 derart um die Schwenkachse verschwenkt, dass sich das Räumelement 12 von dem Untergrund 11 entfernt.As soon as the horizontal and/or vertical portion of the force that acts on the clearing edge 14 in the operating position due to the penetration into the ground is greater than the force exerted on the clearing element 12 due to its own weight and/or the actuator element 19, the clearing element 12 becomes so pivoted about the pivot axis so that the clearing element 12 moves away from the surface 11.

Dies bedeutet, dass, wenn der das Räumelement auf ein Hindernis im Bodenmaterial trifft oder das Raumelement auf den festen und dichten Untergrund trifft, der horizontale und/oder vertikale Anteil der Kraft so hoch wird, dass das Räumelement 12 von dem Bodenbelag weg schwenkt.This means that when the clearing element hits an obstacle in the floor material or the spatial element hits the solid and dense ground, the horizontal and/or vertical portion of the force becomes so high that the clearing element 12 pivots away from the floor covering.

Das Räumelement 12 soll auch derart eingestellt bzw. ausgewählt sein, dass das Räumelement 12 gerade nicht ein festes Material eindringt, da das Räumelement 12 lediglich lockeres Material auf Seite räumen soll und nicht in den zu fräsenden Untergrund 11 eindringen soll.The clearing element 12 should also be set or selected in such a way that the clearing element 12 does not penetrate a solid material, as the clearing element 12 should only clear loose material to the side and should not penetrate into the subsurface 11 to be milled.

Zusätzlich kann jedoch auch die Kontur der Räumkante 14 derart geformt werden, dass es das Räumelement 12 darin unterstützt wird, einerseits in lockeres Bodenmaterial einzudringen und andererseits von zu festem Bodenmaterial 16 weggeschwenkt zu werden.In addition, however, the contour of the clearing edge 14 can also be shaped in such a way that the clearing element 12 is supported in penetrating into loose ground material on the one hand and on the other hand in being pivoted away from ground material 16 that is too solid.

Dabei ist vorgesehen, dass die Räumkante 14 einen ersten und zweiten Räumkantenbereich 20, 22 aufweist.It is provided that the clearing edge 14 has a first and second clearing edge region 20, 22.

Der erste Räumkantenbereich 20 kann derart geformt sein, dass in Betriebsstellung die Kraft, die aufgrund des Eindringens in das Bodenmaterial 16 auf den ersten Räumkantenbereich 20 wirkt, derart ausgerichtet wird, dass zumindest ein Teil der Kraft das Räumelement 12 in Richtung Untergrund drückt. Im dargestellten Ausführungsbeispiel weist die Räumkante zumindest im ersten Räumkantenbereich 20 eine derartige Kontur auf, die in Richtung Untergrund in Betriebsstellung in Fahrtrichtung A gekrümmt ist.The first clearing edge region 20 can be shaped in such a way that in the operating position, the force that acts on the first clearing edge region 20 due to the penetration into the ground material 16 is aligned in such a way that at least part of the force presses the clearing element 12 towards the ground. In the exemplary embodiment shown, the clearing edge has such a contour, at least in the first clearing edge region 20, which is curved towards the ground in the operating position in the direction of travel A.

Die Räumkante 14 kann zumindest einen zweiten Räumkantenbereich 22 aufweisen, der eine derartige Kontur aufweist, die in Richtung Untergrund in Betriebsstellung in eine Richtung entgegen der Fahrtrichtung A gekrümmt ist.The clearing edge 14 can have at least one second clearing edge region 22, which has such a contour that is curved towards the ground in the operating position in a direction opposite to the direction of travel A.

Der zweite Räumkantenbereich 22 kann derart geformt sein, dass das Räumelement 12 sich zum freien Ende 24 hin verjüngt.The second clearing edge region 22 can be shaped such that the clearing element 12 tapers towards the free end 24.

Der Räumkantenbereich 20 ist vorzugsweise oberhalb des zweiten Räumkantenbereichs 22 angeordnet. Die Kontur des zweiten Räumkantenbereichs 22 kann derart geformt sein, dass in Betriebsstellung die Kraft, die aufgrund des Eindringens in das Bodenmaterial 16 auf den zweiten Räumkantenbereich 22 wirkt, derart ausgerichtet ist, dass zumindest ein Teil der Kraft das Räumelement 12 verschwenkt und vom Untergrund entfernt.The clearing edge area 20 is preferably arranged above the second clearing edge area 22. The contour of the second clearing edge region 22 can be shaped such that in the operating position, the force that acts on the second clearing edge region 22 due to the penetration into the ground material 16 is aligned such that at least part of the force pivots the clearing element 12 and removes it from the ground .

Somit kann das Eigengewicht und/oder die Kraft des Aktuatorelements 19 und/oder die Kontur des ersten und/oder zweiten Räumkantenbereichs 20, 22 derart wählbar sein, dass das Räumelement 12 in das Bodenmaterial 16 eindringen kann, das eine Dichte aufweisen kann, die geringer ist als eine vordefinierte Dichte.The own weight and/or the force of the actuator element 19 and/or the contour of the first and/or second clearing edge region 20, 22 can thus be adjusted in such a way be selectable that the clearing element 12 can penetrate into the floor material 16, which can have a density that is less than a predefined density.

Das tatsächliche Eigengewicht, die Kraft des Aktuatorelements sowie die Kontur des ersten und/oder zweiten Räumkantenbereichs 20, 22 werden durch Vergleichsversuche mit verschiedenen Konturen, verschiedenen Eigengewichten und Kräften von Aktuatormomenten und verschiedenen Materialien mit verschiedenen Dichten ausprobiert und dann entsprechend ausgewählt.The actual dead weight, the force of the actuator element and the contour of the first and/or second clearing edge region 20, 22 are tested through comparison tests with different contours, different dead weights and forces of actuator moments and different materials with different densities and then selected accordingly.

Das Räumelement 12 ist wie dargestellt, vorzugsweise an einer Fahreinrichtung 4 der Bau- oder Gewinnungsmaschine 1 angeordnet.The clearing element 12 is, as shown, preferably arranged on a driving device 4 of the construction or mining machine 1.

In Fig. 3 ist ein schematisches Bild dargestellt, das die Fahreinrichtungen 4, die auf dem zu fräsenden Untergrund aufliegen, sowie das Räumelement 12 schematisch darstellt. In der gezeigten Figur räumt das Räumelement wie das Bodenmaterial 16 in Fahrtrichtung A vor dem beweglichen Seitenschild 8. Das Räumelement 12 dringt dabei nicht in den Bereich 11a des Untergrunds 11 ein, über dem bereits gefräst worden ist.In Fig. 3 A schematic image is shown which schematically represents the driving devices 4, which rest on the surface to be milled, and the clearing element 12. In the figure shown, the clearing element, like the floor material 16, clears in the direction of travel A in front of the movable side plate 8. The clearing element 12 does not penetrate into the area 11a of the subsurface 11, over which milling has already taken place.

Fig. 4 zeigt schematisch das Beispiel, bei dem das Bodenmaterial 16, das auf dem bereits gefrästen Bereich 11a des Untergrunds aufliegt, bereits weggeräumt worden ist. In diesem Fall kann das bewegliche Seitenschild 8 auf Bereich 11a des Untergrunds 11 aufliegen über dem bereits gefräst worden ist. Die Frästiefe ist kann somit mittels des beweglichen Seitenschildes 8 ermittelt werden. Fig. 4 shows schematically the example in which the soil material 16, which rests on the already milled area 11a of the subsoil, has already been cleared away. In this case, the movable side plate 8 can rest on area 11a of the subsurface 11 over which milling has already been carried out. The milling depth can therefore be determined using the movable side plate 8.

Claims (15)

  1. Self-propelled construction machine or mining machine (1), in particular milling machine, for working a ground surface (11), comprising
    - a machine frame (2),
    - a working device (6) for working the ground surface (11), which is supported on the machine frame (2), wherein the working device (6) is at least partially enclosed by a housing (10),
    - at least one movable side plate (8), which closes the housing (10) on at least one of the two sides of the working device (6), wherein the movable side plate (8) rests on the ground surface (11) in floating position during the working operation,
    characterized in that
    a clearing element (12) is arranged in front of the at least one movable side plate (8) as seen in the direction of travel (A), wherein the clearing element (12) comprises at least one clearing edge (14), by means of which the clearing element (12) may penetrate ground material (16) lying on the ground surface (11) in front of the movable side plate (8), and clears the ground material (16) for the movable side plate (8) so that the movable side plate (8) may rest on the ground surface (11).
  2. Construction machine or mining machine (1) in accordance with claim 1, characterized in that the clearing element (12) is pivotable about a pivoting axis (18), wherein the pivoting axis (18) preferably extends essentially orthogonal to the direction of travel (A).
  3. Construction machine or mining machine (1) in accordance with claim 2, characterized in that, in operating position, the pivoting axis (18) is offset horizontally and/or vertically in relation to the clearing edge (14).
  4. Construction machine or mining machine (1) in accordance with one of the claims 1 to 3, characterized in that the clearing edge (14) features, at least in a first clearing edge section (20), such contour, which in operating position is curved, in the direction of the ground surface (11), in the direction of travel (A).
  5. Construction machine or mining machine (1) in accordance with one of the claims 1 to 4, characterized in that the clearing edge (14) features, at least in a second clearing edge section (22), such contour, which in operating position is curved, in the direction of the ground surface (11), in a direction opposite to the direction of travel (A).
  6. Construction machine or mining machine (1) in accordance with claim 5, characterized in that the contour in the second clearing edge section (22) is shaped in such a manner that the clearing element (12) tapers towards the free end.
  7. Construction machine or mining machine (1) in accordance with one of the claims 4 to 6, characterized in that, in operating position, the first clearing edge section (20) is arranged above the second clearing edge section (22).
  8. Construction machine or mining machine (1) in accordance with one of the claims 1 to 7, characterized in that the ground surface (11) that the movable side plate (8) rests on is a previously milled area of the ground surface (11a), and the ground material (16) that the clearing element (12) penetrates is previously milled ground material (16) lying on the ground surface (11a).
  9. Construction machine or mining machine (1) in accordance with one of the claims 1 to 8, characterized in that the centre of gravity (S) of the clearing element (12) is arranged relative to the pivoting axis (18) in such a manner that the own weight of the clearing element (12) pushes the clearing element (12) in the direction of the ground surface (11).
  10. Construction machine or mining machine (1) in accordance with one of the claims 4 to 9, characterized in that the contour of the first clearing edge section (20) is shaped in such a manner that, in operating position, the force acting on the first clearing edge section (20) as a result of penetrating the ground material (16) is directed in such a manner that at least a portion of the force pushes the clearing element (12) in the direction of the ground surface (11).
  11. Construction machine or mining machine (1) in accordance with one of the claims 1 to 10, characterized in that an actuator element (19) is provided, which in operating position applies an additional force to the clearing element (12), wherein the force pushes the clearing element (12) in the direction of the ground surface (11).
  12. Construction machine or mining machine (1) in accordance with one of the claims 9 to 11, characterized in that, as soon as the horizontal and/or vertical portion of the force acting on the clearing edge (14) as a result of penetrating the ground material is larger than the force exerted on the clearing element (12) as a result of the own weight and/or the actuator element (19), the clearing element (12) is pivoted about the pivoting axis (18) in such a manner that the clearing element (12) moves away from the ground surface (11).
  13. Construction machine or mining machine (1) in accordance with one of the claims 5 to 12, characterized in that the contour of the second clearing edge section (22) is shaped in such a manner that, in operating position, the force acting on the second clearing edge section (22) as a result of penetrating the ground material (16) is directed in such a manner that at least a portion of the force pivots the clearing element (12) and moves it away from the ground surface (11).
  14. Construction machine or mining machine (1) in accordance with one of the claims 4 to 13, characterized in that the own weight and/or the force of the actuator element (19) and/or the contour of the first and/or second clearing edge section (20, 22) is selectable in such a manner that the clearing element (12) may penetrate the ground material (16), which exhibits a density that is lower than a predefined density.
  15. Construction machine or mining machine (1) in accordance with one of the claims 1 to 14, characterized in that the clearing element (12) is arranged on a travelling device (4) of the construction machine or mining machine (1).
EP22161844.0A 2021-03-15 2022-03-14 Self-propelled building or mining machine Active EP4060118B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021106221.7A DE102021106221A1 (en) 2021-03-15 2021-03-15 Self-propelled construction or mining machine

Publications (3)

Publication Number Publication Date
EP4060118A1 EP4060118A1 (en) 2022-09-21
EP4060118C0 EP4060118C0 (en) 2024-01-10
EP4060118B1 true EP4060118B1 (en) 2024-01-10

Family

ID=80738846

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US (1) US11993898B2 (en)
EP (1) EP4060118B1 (en)
CN (2) CN217973970U (en)
DE (1) DE102021106221A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8331266D0 (en) * 1983-11-23 1983-12-29 Bowmer & Kirkland Products Sal Road milling/cutting machine
US4561145A (en) * 1984-02-16 1985-12-31 Latham Winchester E Continuous sweep for road planing and milling machines
US5607255A (en) * 1993-09-10 1997-03-04 Thomas; Glen E. Method of milling to form highway depressions
EP2050875B1 (en) * 2007-10-17 2014-09-24 Dynapac GmbH Road milling device
DE102014016587B4 (en) * 2014-11-11 2019-03-21 Wirtgen Gmbh Self-propelled road milling machine
US20170073908A1 (en) * 2015-09-10 2017-03-16 Caterpillar Paving Products Inc. Cold planer with a rear-mounted rotary broom and a carriage system
US10094078B2 (en) 2016-03-03 2018-10-09 Caterpillar Paving Products Inc. Cold planer rear door and sliding plates sealing design

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CN115075105A (en) 2022-09-20
CN217973970U (en) 2022-12-06
DE102021106221A1 (en) 2022-09-15
US20220290384A1 (en) 2022-09-15
US11993898B2 (en) 2024-05-28
EP4060118A1 (en) 2022-09-21
EP4060118C0 (en) 2024-01-10

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