EP3708528B1 - Machine de travail et procédé de fonctionnement de la machine de travail - Google Patents

Machine de travail et procédé de fonctionnement de la machine de travail Download PDF

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Publication number
EP3708528B1
EP3708528B1 EP19162283.6A EP19162283A EP3708528B1 EP 3708528 B1 EP3708528 B1 EP 3708528B1 EP 19162283 A EP19162283 A EP 19162283A EP 3708528 B1 EP3708528 B1 EP 3708528B1
Authority
EP
European Patent Office
Prior art keywords
cable
contact pressure
support cable
work
work machine
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.)
Active
Application number
EP19162283.6A
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German (de)
English (en)
Other versions
EP3708528A1 (fr
Inventor
Andreas Schüll
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen 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 Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP19162283.6A priority Critical patent/EP3708528B1/fr
Priority to US16/816,086 priority patent/US11235958B2/en
Priority to CN202010170713.8A priority patent/CN111689406B/zh
Publication of EP3708528A1 publication Critical patent/EP3708528A1/fr
Application granted granted Critical
Publication of EP3708528B1 publication Critical patent/EP3708528B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/60—Derricks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/10—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for preventing cable slack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/14—Control arrangements for mechanically-driven presses
    • B30B15/148—Electrical control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/16—Applications of indicating, registering, or weighing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil

Definitions

  • the invention relates to a work machine, in particular a construction machine, with a mast with a mast head, a support cable which is guided along the mast over the mast head, a cable winch with a rotatably mounted winch drum on which the support cable is attached for winding and unwinding, a working element , which is arranged for vertical movement on the support cable, and a control unit through which the cable winch for unwinding the support cable from the winch drum can be operated in an unwinding mode in which the working element on the support cable is lowered to a base, with a cable pressure device with at least one pressure element is provided, according to the preamble of claim 1.
  • a work machine is from the DD 289 994 A5 known.
  • the invention also relates to a method for operating such a work machine according to claim 12.
  • a generic working machine is based, for example, on the EP 3 144 260 B1 emerged.
  • a support cable is guided over a mast head on a mast in order to raise and lower a lifting element as quickly as possible by means of a cable winch arrangement.
  • the invention is based on the object of specifying a work machine and a method for operating the work machine with which the negative effects of rope oscillation of the suspension rope can be counteracted.
  • the object is achieved on the one hand by a work machine with the features of claim 1 and on the other hand by a method with the features of claim 12.
  • Preferred embodiments of the invention are given in the dependent claims.
  • the working machine according to the invention is characterized in that the pressure element to counteract a cable oscillation of the carrying cable when the working element strikes the base can be adjusted by a control unit by means of an actuating element into a pressure position in which the pressure element rests on the carrying cable with a pressure force.
  • the invention is based on the knowledge that in the event of an intended or unintentional impact of a working or lifting element on a support cable on a base or floor surface, a cable oscillation can be counteracted at least in some areas by applying a defined pressure force to the support cable by means of a cable pressure device .
  • a position of the suspension cable can be fixed or tensioned at least in certain areas in such a way that this can counteract the spread of a cable oscillation.
  • the working element can be a tool, a gripper, a load hook with a load or another load.
  • a preferred embodiment of the invention consists in that the pressure element can be adjusted by the control unit from a retracted position into the pressure position immediately before or when the working element hits the base area.
  • the pressure element according to a preferred embodiment of the invention is only held briefly in the pressure position on the support cable. In this case, the support cable is brought into contact with a short period of time before an expected impact or when the working element strikes the base area. When the working element is lifted, the pressure can be released again.
  • control unit for example a control program with a defined course of a processing speed.
  • control unit can be designed in such a way that it is designed for free manual operation by an operator.
  • the effect and formation of a rope oscillation is greater, the faster the work element is lowered and the higher the speed of impact on a base.
  • the use of a work machine according to the invention is advantageous if the processing mode is a free fall mode.
  • the base area can be the floor, another area or also a liquid surface.
  • a free-fall mode can be understood to mean a processing mode in which the winch drum is essentially not braked or operated in a non-positive manner in a free-running lowering.
  • Such a free fall mode can be particularly advantageous if, for example For soil compaction by dropping an impact weight, a particularly large impact impulse is desired.
  • a particularly good suppression of rope oscillation can be achieved according to a development of the invention in that the rope pressure device is arranged between the mast head and the winch drum, in particular near the winch drum. This reliably counteracts the spread of rope oscillation in the area of the winch drum and onto the rope winding.
  • a single pressure element is pressed against the support cable in the pressure position. In many cases, this enables a sufficient containment of rope oscillation to be achieved.
  • the at least one pressure element is provided with a roller in which the support cable comes to rest.
  • the pressure element can press freely on the suspension cable.
  • a particularly expedient variant of the invention can be seen in the fact that the pressure element presses the support cable against the winch drum in the pressure position.
  • the pressure element can be rod-shaped or preferably plate-shaped, the plate being adapted to the curvature of the winch drum.
  • the pressure element can extend essentially over the axial length of the winch drum, so that the wound rope is reliably pressed against the winch drum even in the event of stronger rope oscillation.
  • a further advantageous embodiment of the invention results from the fact that two pressure elements are provided opposite one another, that the support cable is passed between the two pressure elements and that both pressure elements are pressed against the support cable in the pressure position.
  • the two pressure elements can be arranged directly opposite one another or with a certain offset in a longitudinal direction of the support cable. In this way, a double pressure force is exerted, so to speak, on the supporting rope, so that the spread of the rope oscillation is counteracted particularly well.
  • the cable pressure device can be controlled by the control unit via a predetermined program which presses the pressure element against the supporting cable at certain times.
  • the control unit can preferably be designed in such a way that when the cable drum is stopped or braked, the pressure element is placed against the support cable with the predetermined pressure force.
  • a particularly expedient variant of the working machine according to the invention is that a determination device is provided which is designed to determine a position of the working element on the support cable and / or a state of the support cable, in particular a tension state of the support cable, that the determination device is in connection with the control unit and that depending on the determined position and / or the state of the suspension cable, the cable pressure device can be actuated by the control unit. An actuation preferably takes place when the working element strikes a floor.
  • the determination device can, for example, determine a length of the support cable, for example as a function of the number of revolutions of the winch drum. Furthermore, another condition of the suspension cable, in particular a tension condition of the suspension cable, can also be detected by the determination device.
  • a force measuring device can be provided on a pulley on the mast head, with which a tensile force on the support cable can be determined. For example, if the tensile force falls below a certain value or if it drops quickly, this can be recognized by the control unit as an occurrence of rope oscillation.
  • the determination device can also comprise a camera which optically detects a cable oscillation.
  • the occurrence of a cable oscillation can thus be detected particularly reliably and the cable pressure device can be actuated as required.
  • the pressure element is adjusted, in particular, via an actuating element, in particular an actuating cylinder, particularly preferably a hydraulic cylinder.
  • the mast is adjustable in its position, in particular relative to the angular position relative to the vertical, and that the cable pressure device is adjustable depending on the position of the mast.
  • an adjustable mounting of the cable pressure device is expedient. In this way, a desired distance between the pressure element and the support cable can always be ensured, even if the position of the support cable changes due to a position adjustment of the mast.
  • the adjustment device provided for this can be operated manually or preferably by means of at least one actuator. This can comprise an adjusting cylinder, preferably a hydraulic cylinder.
  • the actuator can be operated by the operator or, in particular, by a control based on the position adjustment of the mast.
  • the working machine according to the invention can be designed as desired, in particular as a crane or a construction machine.
  • the work machine is designed as a crawler crane, with an impact weight for soil compaction being attached to the support rope as a work element.
  • a crawler crane is often referred to as a rope excavator, this being essentially a movable crane with a crawler chassis.
  • a boom mast is adjustably mounted on a preferably rotatable superstructure on the crawler chassis, which is used in particular on construction sites for lifting work.
  • an impact weight is provided as the working element, which is repeatedly raised for soil compaction and preferably dropped in a free-fall mode from a predetermined height onto a soil to be compacted. In this way, a simple but at the same time very effective method for soil compaction can be carried out.
  • a support cable is guided along a mast over a mast head, the support cable being attached to a rotatably mounted winch drum of a cable winch for winding and unwinding and a working element is arranged on the support cable, which is moved vertically by the support cable, with the support cable being unwound from the winch drum of the cable winch by means of a control unit in a processing mode in which the working element is lowered to a base area, with at least one by means of an actuator Pressure element of a cable pressure device from the control unit to the support cable with a pressure force in a pressure position the support cable is pressed when the working element strikes the base, a cable oscillation of the support cable being counteracted.
  • the method can in particular be carried out with a work machine, which has been described above.
  • the advantages described above can be achieved with the method.
  • the method can be used wherever rapid and, in particular, repetitive lowering of a work element on a suspension cable is desired.
  • a preferred variant of the method of the invention consists in that an impact weight is provided as the working element and that the impact weight is repeatedly dropped onto the ground in a free-fall mode to compact the ground. In this way, a simple and effective soil compaction can be carried out with a safe cable guide.
  • a working machine 10 of the invention designed as a crawler crane Fig. 1 has a mobile carrier device 12.
  • the carrier device 12 comprises a crawler track 14 on which a superstructure 15 is rotatably mounted.
  • a mast 16, which is also referred to as a cantilever arm, is mounted on the upper carriage 15 so as to be pivotable about a horizontal pivot axis.
  • a holding beam 26, a support beam 28 and an adjusting cable mechanism 27 are provided on the upper carriage 15 in a manner known in principle.
  • At least one support cable 20, on which a working element 30 is suspended is guided from the upper carriage 15 via a mast head 18 of the mast 16.
  • the support cable 20 is adjustably driven via a double winch arrangement in the upper carriage 15, as is basically known from the prior art.
  • a cable pressure device 40 is arranged on each of the two sections of the support cable 20, one of which is attached to the holding beam 26, also called A beam, and the other to the mast 16.
  • the ends of the support cable 20 are each attached to a cable winch in the upper carriage 15, so that a double cable winch arrangement is provided for fast lifting processes.
  • a first embodiment of a cable pressure device 40 according to the invention is shown in more detail, which is adjustably mounted on the holding carrier 26.
  • the cable pressure device 40 has a first pressure element 42a, which is mounted as a rotatable roller 44 on a base support 46.
  • a second pressure element 42b which is also designed as a roller 44, is provided, which is rotatably mounted on two lateral rockers 48.
  • the two rockers 48 are pivotably mounted on the base support 46 and are each connected to it via a linear actuating member 50, which is designed as a hydraulic cylinder.
  • Fig. 2 the cable pressure device 40 is shown in a state in which the support cable 20 extends without contact or at most with a slight contact between the two pressure elements 42a, 42b down to a cable winch 22 with a winch drum 24 rotatably mounted in the upper carriage.
  • a winch drum 24 By winding and unwinding the support cable 20 on or from the winch drum 24, the working element 30 can be raised or lowered on the support cable 20.
  • the cable winch 22 has a winch drive in a basically known manner, which is actuated via a control unit (not shown).
  • a position of the cable pressure device 40 with the base beam 46 can be adjusted relative to the holding beam 26 via an adjusting device 52 and a changing position of the carrying cable 20 can be adjusted.
  • the adjusting device 52 has an adjusting cylinder 54, which can also be operated hydraulically.
  • Fig. 3 the state of the cable pressure device 40 is shown in a pressure position in which the two actuating members 50 are retracted so that the second pressure element 42b is moved relative to the first pressure element 42a.
  • the second pressure element 42b presses against the support cable 20.
  • the support cable 20 also presses against the first pressure element 42a.
  • the support cable 20 is, so to speak, clamped between the two pressure elements 42, 42b, but due to the use of rotatable rollers 44 a longitudinal movement of the cable 20 is still possible.
  • a movement transverse to the longitudinal direction of the cable 20 in this pressure position is effectively prevented by the two pressure elements 42a, 42b.
  • the working element 30 designed as an impact weight 32 for example in a free fall mode with unbraked rotation of the winch drum 24, is lowered from an upper drop position onto a ground in order to exert an impact impulse for soil compaction on the ground, then the suspension rope 20 form a rope oscillation.
  • This cable oscillation of the carrying cable 20 can propagate beyond the mast head 18 to the winch drum 24. Correct winding of the carrying cable 20 on the winch drum 24 can be impaired in this case.
  • the cable pressure device 40 is actuated. The time of impact can be recorded or specified.
  • the pressure elements 42a, 42b are moved from the retracted position according to FIG Fig. 2 in the pressure position according to Fig. 3 procedure.
  • An oscillation of the suspension cable 20, which is largely determined by a cable movement transverse to the normal longitudinal direction of the suspension cable 20, can be prevented or reduced or suppressed to a considerable extent.
  • Fig. 4 a modified embodiment of the cable pressure device 40 according to the invention is shown. This is essentially the same as the cable pressure device 40 according to FIGS Figures 2 and 3 educated. However, the two pressure elements 42a, 42b are not designed as a roller, but as arcuate plates. Fig. 4 shows the state of the cable pressure device 40 with the pressure elements 42a, 42b in a retracted position accordingly Fig. 2 .
  • FIG. 5 A third embodiment of the cable pressure device 40 according to the invention is shown in FIG Fig. 5 shown.
  • the two pressure elements 42a, 42b are also designed as rotatable rollers 44, but these have a fixed position relative to one another on the base support 46.
  • Fig. 5 shows the retracted position in which the support cable 20 is passed largely unhindered through the two pressure elements 42a, 42b.
  • an actuating member 50 is provided, which is preferably designed as a hydraulic cylinder. By means of the actuating member 50, the base carrier 46 with the two pressure elements 42a, 42b is adjusted relative to the holding carrier 26, in particular pivoted about a pivot joint 56.
  • At least one of the two pressure elements 42a, 42b presses against the support cable 20, which is deflected from its normal, unhindered passage position.
  • This application of a pressure force to the support cable 20 transversely to its longitudinal direction can likewise at least significantly counteract the spreading of an undesired cable oscillation of the support cable 20 onto the winch drum 24.
  • FIG. 6 Another embodiment of a cable pressure device 40 according to the invention is shown in FIG Fig. 6 shown, this cable pressure device 40 largely corresponding to the first embodiment according to FIGS Figures 2 and 3 is trained. In contrast to In the first embodiment, however, this cable pressure device 40 is not attached to the holding beam 26, but rather directly to the superstructure 15 of the work machine 10, close to the winch drum 24. Fig. 6 shows the cable pressure device 40 in the pressure position.
  • FIG Fig. 7 Another embodiment of a cable pressure device 40 according to the invention is shown in FIG Fig. 7 shown.
  • the cable pressure device 40 has a single pressure element 42 which is rotatably mounted as a roller 44 on a base support 46.
  • the base support 46 itself is mounted pivotably about a pivot joint 56, a pivot axis of the pivot joint 56 being oriented approximately parallel to an axis of rotation of the winch drum 24.
  • an actuating member 50 designed as a pressure cylinder is provided in order to press the pressure element 42 against the support cable 20, an actuating member 50 designed as a pressure cylinder is provided.
  • the actuating member 50 presses the support cable 20 directly against the winch drum 24 in the pressing position.
  • FIG Fig. 8 A similar embodiment is shown in FIG Fig. 8 shown, wherein in this cable pressure device 40 according to the invention, a curved plate is provided as the pressure element 42. This is also mounted on a base support 46, which is pressed directly against the winch drum 24 by an actuating member 50 so that the support cable is clamped between the winch drum 24 and the pressure element 42.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)

Claims (13)

  1. Machine de travail, en particulier engin de chantier, avec
    - un mât (16) avec une tête de mât (18),
    - un câble porteur (20), lequel est guidé le long du mât (16) au-dessus de la tête de mât (18),
    - un treuil à câble (22) avec un tambour de treuil (24) monté en rotation, sur lequel est fixé le câble porteur (20) pour l'enroulement et le déroulement,
    - un élément de travail (30), lequel est disposé sur le câble porteur (20) pour le déplacement vertical, et
    - une unité de commande, par laquelle le treuil à câble (22) peut fonctionner pour le déroulement du câble porteur (20) à partir du tambour de treuil (24) dans un mode déroulement, dans lequel l'élément de travail (30) sur le câble porteur (20) est abaissé jusqu'à une surface de base,
    dans laquelle un dispositif de pression de câble (40) avec au moins un élément de pression (42) est prévu, caractérisée en ce que l'élément de pression peut être déplacé au moyen d'un organe d'actionnement (50) par l'unité de commande pour contrecarrer une oscillation de câble du câble porteur (20) lors d'un impact sur la surface de base dans une position de pression, dans laquelle l'élément de pression (42) s'applique sur le câble porteur (20) avec une force de pression.
  2. Machine de travail selon la revendication 1,
    caractérisée en ce
    que l'élément de pression (42) peut être déplacé par l'unité de commande d'une position de retrait dans la position de pression immédiatement avant ou lors d'un impact de l'élément de travail (30) sur la surface de base.
  3. Machine de travail selon la revendication 1 ou 2,
    caractérisée en ce
    que le mode déroulement est un mode à chute libre.
  4. Machine de travail selon l'une quelconque des revendications 1 à 3,
    caractérisée en ce
    que le dispositif de pression de câble (40) est disposé entre la tête de mât (18) et le tambour de treuil (24), en particulier à proximité du tambour de treuil (24).
  5. Machine de travail selon l'une quelconque des revendications 1 à 4,
    caractérisée en ce
    qu'un seul élément de pression (42) est pressé sur le câble porteur (20) dans la position de pression.
  6. Machine de travail selon l'une quelconque des revendications 1 à 5,
    caractérisée en ce
    que l'au moins un élément de pression (42) est pourvu d'un rouleau (44), sur lequel le câble porteur (20) vient en appui.
  7. Machine de travail selon l'une quelconque des revendications 1 à 6,
    caractérisée en ce
    que l'élément de pression (42) dans la position de pression presse le câble porteur (20) contre le tambour de treuil (24).
  8. Machine de travail selon l'une quelconque des revendications 1 à 6,
    caractérisée en ce que
    deux éléments de pression (42a, 42b) sont prévus à l'opposé l'un de l'autre,
    que le câble porteur (20) est guidé entre les deux éléments de pression (42a, 42b) et que dans la position de pression les deux éléments de pression (42a, 42b) sont pressés sur le câble porteur (20).
  9. Machine de travail selon l'une quelconque des revendications 1 à 8,
    caractérisée en ce
    qu'un dispositif de détermination est prévu, lequel est réalisé pour la détermination d'une position de l'élément de travail (30) sur le câble porteur (20) et/ou d'un état du câble porteur (20), en particulier d'un état de tension du câble porteur (20),
    que le dispositif de détermination est relié à l'unité de commande et
    que le dispositif de pression de câble (40) peut être actionné par l'unité de commande en fonction de la position déterminée et/ou de l'état du câble porteur (20).
  10. Machine de travail selon l'une quelconque des revendications 1 à 9, caractérisée en ce
    que le mât (16) peut être déplacé dans sa position, en particulier sa position angulaire par rapport à la verticale et
    que le dispositif de pression de câble (40) peut être déplacé en fonction de la position du mât (16).
  11. Machine de travail selon l'une quelconque des revendications 1 à 10,
    caractérisée en ce
    que celle-ci est réalisée en tant que grue sur chenilles, dans laquelle en tant qu'élément de travail (30) un poids à percussion (32) pour le compactage du sol est accroché au câble porteur (20).
  12. Procédé pour faire fonctionner une machine de travail (10) selon l'une quelconque des revendications 1 à 11, en particulier un engin de chantier,
    selon lequel un câble porteur (20) est guidé le long d'un mât (16) au-dessus d'une tête de mât (18), dans lequel le câble porteur (20) est fixé sur un tambour de treuil (24) d'un treuil à câble (22) monté en rotation pour l'enroulement et le déroulement et un élément de travail (30) est disposé sur le câble porteur (20), lequel est déplacé verticalement par le câble porteur (20), dans lequel le câble porteur (20) est déroulé du tambour de treuil (24) du treuil à câble (22) au moyen d'une unité de commande dans un mode déroulement, dans lequel l'élément de travail (30) sur le câble porteur (20) est abaissé jusqu'à une surface de base,
    dans lequel au moyen d'un organe d'actionnement (50), au moins un élément de pression (42) est pressé par l'unité de commande avec une force de pression dans une position de pression sur le câble porteur (20), lorsque l'élément de travail (30) heurte la surface de base, dans lequel une oscillation de câble du câble porteur (20) est contrecarrée.
  13. Procédé selon la revendication 12,
    caractérisé en ce
    qu'un poids à percussion (32) est prévu en tant qu'élément de travail (30) et
    que le poids à percussion (32) est laissé tomber à plusieurs reprises sur un sol dans un mode à chute libre pour le compactage du sol.
EP19162283.6A 2019-03-12 2019-03-12 Machine de travail et procédé de fonctionnement de la machine de travail Active EP3708528B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19162283.6A EP3708528B1 (fr) 2019-03-12 2019-03-12 Machine de travail et procédé de fonctionnement de la machine de travail
US16/816,086 US11235958B2 (en) 2019-03-12 2020-03-11 Work machine and method for operating the work machine
CN202010170713.8A CN111689406B (zh) 2019-03-12 2020-03-12 作业机械和用于操作作业机械的方法

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EP4249685A3 (fr) 2020-11-11 2023-10-18 BAUER Maschinen GmbH Procédé et engin de construction pour le compactage du sol
CN115262548A (zh) * 2022-07-07 2022-11-01 中电建宁夏工程有限公司 光伏桩基础施工定位装置及光伏桩基础施工方法

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US11235958B2 (en) 2022-02-01
EP3708528A1 (fr) 2020-09-16
CN111689406A (zh) 2020-09-22
US20200290846A1 (en) 2020-09-17
CN111689406B (zh) 2022-03-11

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