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EP2889431B1 - Machine de travail pour le fonctionnement de benne racleuse - Google Patents

Machine de travail pour le fonctionnement de benne racleuse Download PDF

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Publication number
EP2889431B1
EP2889431B1 EP14196941.0A EP14196941A EP2889431B1 EP 2889431 B1 EP2889431 B1 EP 2889431B1 EP 14196941 A EP14196941 A EP 14196941A EP 2889431 B1 EP2889431 B1 EP 2889431B1
Authority
EP
European Patent Office
Prior art keywords
digging
dragline
rope
guide
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
EP14196941.0A
Other languages
German (de)
English (en)
Other versions
EP2889431A3 (fr
EP2889431A2 (fr
Inventor
Johann Zimmermann
Tizian Lamprecht
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.)
Liebherr Werk Nenzing GmbH
Original Assignee
Liebherr Werk Nenzing 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 Liebherr Werk Nenzing GmbH filed Critical Liebherr Werk Nenzing GmbH
Publication of EP2889431A2 publication Critical patent/EP2889431A2/fr
Publication of EP2889431A3 publication Critical patent/EP2889431A3/fr
Application granted granted Critical
Publication of EP2889431B1 publication Critical patent/EP2889431B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/58—Component parts
    • E02F3/60—Buckets, scrapers, or other digging elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
    • B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
    • B65H75/4407—Traversing devices; means for orderly arranging the material on the drum positively driven, e.g. by a transmission between the drum and the traversing device
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/48—Drag-lines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/46—Dredgers; Soil-shifting machines mechanically-driven with reciprocating digging or scraping elements moved by cables or hoisting ropes ; Drives or control devices therefor
    • E02F3/58—Component parts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2016—Winches

Definitions

  • the invention relates to a work machine, in particular a rope excavator, for scraper operation, with a scraper picked up via a hoist rope, the bucket being retractable by means of at least one digging rope to carry out the digging movement and a digging rope guide for guiding the digging rope being arranged on the working machine.
  • the invention relates to the use of a scraper in a work machine, in particular a rope excavator.
  • the term "scraping” or “scraping insert” is also used in the specialist literature.
  • the work machine or rope excavator is equipped with a so-called scraper or dragline shovel as a working device.
  • the generally trough-shaped bucket is connected to the machine with two ropes, namely the hoisting rope and the digging rope.
  • the scraper is ejected as far from the machine as possible via the hoist rope.
  • the digging rope runs directly from the superstructure of the work machine or the excavator to the attachment point on the scraper, whereby pulling the digging rope creates a digging movement of the bucket along the surface of the earth and the superficial soil material is picked up through the bucket opening.
  • the scraper can then be lifted with the hoisting rope when the digging rope is taut and emptied at the emptying point by slackening the digging rope.
  • a generic work machine according to the preamble of claim 1 is from U.S. 1,572,228 known.
  • the object of the present invention is to show a possibility for an improved digging cable guide which allows less wear and tear and greater flexibility with regard to the digging cable winch used.
  • This object is achieved by a work machine, in particular a rope excavator, according to the features of claim 1.
  • Advantageous configurations of the work machine or the cable excavator are the subject matter of the dependent claims 2 to 7.
  • a work machine in particular a hydraulic cable excavator, is proposed for scraper operation, the work machine having a scraper insert received via the hoist rope.
  • the work machine includes an actuatable digging rope which is attached to the end of the scraper insert. By pulling in the digging rope, a scraping movement of the scraper insert can be carried out.
  • the digging rope runs from the superstructure of the work machine or the rope excavator to the scraper bucket insert, while the hoisting rope is guided over the boom tip of the rope excavator to the scraper bucket insert.
  • a digging rope guide for guiding the digging rope in the area of the construction of the work machine or the excavator body, in particular in the area of the excavator superstructure, which is designed to be movable, in particular linearly movable, so that the guiding direction of the digging rope guide is adjustable.
  • the digging rope guide is designed in particular to be linearly movable relative to the work machine.
  • the digging rope guide is used to regulate the deflection angle of the digging rope on a digging winch. Due to the linearly movable arrangement of the digging rope guide on the work machine or the rope excavator, the deflection angle of the digging rope on the digging rope winch can be varied, in particular the deflection angle can be kept as small as possible.
  • the present invention enables greater flexibility in the selection of a suitable form or type of winch and with regard to the positioning of the digging winch on the cable excavator.
  • a digging cable winch with LEBUS grooves is particularly preferred, which allows the digging cable to be wound in multiple layers for scraper operation.
  • the digging cable guide can be moved or shifted transversely to the guide direction, i.e. transversely to the course of the digging cable, i.e. in the horizontal direction.
  • the lateral guidance of the digging rope can be easily regulated in order to keep the deflection angle of the digging rope in relation to the digging cable winch within a tolerable range.
  • one or more drive means are arranged on or in the area of the digging cable guide in order to enable an automatic linear movement or automatic shifting of the digging cable guide.
  • the arrangement of one or more drive means also enables automated control and / or regulation of the digging rope guidance during the scraper operation.
  • Hydraulically or electrically actuated actuators or actuating cylinders can be used as the drive means.
  • any type of drive for the automatic adjustment of the digging rope guide is conceivable, as long as the forces required to carry out the adjustment movement and / or to maintain the position of the digging rope guide can be applied.
  • control means are provided for controlling the one or more drive means.
  • the automated control and / or regulation of the adjusting movement of the digging rope guide during the scraper operation is achieved via the control means.
  • the adjustment movement of the digging cable guide is controlled or regulated as a function of the detected cable deflection angle of the digging cable in relation to the digging cable winch.
  • the cable deflection angle can be detected, for example, by a suitable sensor system, the sensor system being communicatively connected to the control means for the transmission of measured values, either indirectly or directly.
  • the control means (s) preferably comprise a control logic which controls the one or more drive means in such a way that the digging rope is wound up with a deflection angle lying within the tolerance range.
  • the control means should in particular minimize the diagonal pull of the digging cable on the digging cable winch as far as possible.
  • the digging rope guide comprises at least one upper and at least one lower rope pulley.
  • the axes of rotation of the pulleys are parallel to each other.
  • the at least two pulleys are advantageously arranged one above the other, the digging rope runs through the gap formed between the two pulleys.
  • it can also be arranged pivotably with respect to the work machine, in particular over a pivot angle of 360 °. In the starting position, the pulleys have horizontal axes of rotation.
  • the digging rope guide comprises at least two opposite roller bodies arranged parallel to one another.
  • the roller bodies can be mounted or arranged in a rotatable or stationary manner on the digging rope guide.
  • the at least two opposite roller bodies are arranged at the front rope entry area of the digging rope guide.
  • the lateral deflection of the digging rope is prevented or limited with the aid of the roller bodies, which are vertical in the starting position of the digging cable guide.
  • the axes of rotation of the roller bodies run perpendicular to the axes of rotation of the rope pulleys.
  • the digging rope runs between the gap formed between the opposing roller bodies and the subsequently arranged rope pulleys.
  • the present invention relates to a digging cable guide for a work machine or cable excavator according to the present invention or an advantageous embodiment of the present invention.
  • the digging rope guide accordingly has the same advantages and properties as the work machine according to the invention, which is why a repetitive description is dispensed with at this point.
  • the digging cable guide is designed so that it can be detachably connected to the work machine or the cable excavator, in particular to the superstructure of the cable excavator.
  • the arrangement on the articulation piece of the superstructure is conceivable.
  • the correct positioning of the adjusting device can guarantee the maximum rope angle of the digging rope on the winch.
  • a direction-dependent movement of the winch can be detected via a measuring device on the winch.
  • a control computer can now use the known geometric data of the winch to calculate the current rope departure position above the winch. This allows the adjustment device of the digging rope guide to be set to the correct position.
  • the adjustment device is positioned so that the deflection angle of the rope on the winch is as close as possible to zero degrees or that the maximum permissible deflection angle is is not exceeded in any case.
  • the current position of the adjustment device can be measured back using a further measuring device and, if necessary, corrected.
  • Figure 1 shows a side view of the dragline excavator according to the invention for the scraper operation.
  • the invention is explained below with the aid of a rope excavator.
  • the digging rope guide used can, however, in principle be used as a working device for any work machine, as long as the necessary requirements of the work machine, for example a hoist rope, are given.
  • the rope excavator 10 shown is designed as a crawler excavator.
  • the hoist rope 20, starting from the superstructure of the crawler excavator 10, is guided over the lattice boom and the roller head arranged at the tip to the scraper 30.
  • the scraper 30 can be raised via the hoist rope 20 and with the largest possible Distance to the superstructure.
  • the hoisting rope 20 is actuated by means of the hoisting rope winch 21.
  • the scraper 30 is also connected to the digging cable 40 of the rope excavator 10, which can be wound up and unwound by a digging cable winch 41 arranged on the superstructure.
  • the pulling-in movement of the digging rope 40 leads to a digging movement of the scraper 30.
  • the scraper 30 shown is trough-shaped and digs when pulling the digging rope 40 along its contact surface with the bucket opening first over the surface of the earth, so that the interior of the bucket 30 is filled with the earth to be picked up .
  • a digging cable guide 50 through which the digging cable 40 is guided starting from the bucket 30 as far as the digging cable winch 41, is arranged on the articulation piece 60 of the excavator superstructure.
  • FIG Figure 2 A sectional view of the digging rope guide 50 according to the invention along a vertical sectional plane is shown in FIG Figure 2 refer to.
  • the two rope guide rollers 52 arranged one above the other can be seen, which form a gap in the adjoining area through which the digging rope 40 is guided.
  • the axes of rotation of the two rope pulleys 52 are arranged parallel to one another and both lie in the horizontal plane. The direction of rotation of the pulleys is opposite.
  • rollers 53 At the entrance of the digging cable guide, two opposing rollers 53 are provided which limit the lateral deflection angle of the digging cable 40 in the horizontal plane.
  • the rollers 53 have vertical axes of rotation arranged parallel to one another, with FIG Figure 2 only one of the two rollers 53 can be seen on the basis of the sectional view.
  • the entire digging rope guide is attached to the pivot piece 60 of the superstructure.
  • the digging cable winch 41 can be seen, onto which the digging cable 40 is wound.
  • the digging cable winch 41 has a so-called LEBUS grooving, which enables the digging cable 40 to be wound multiple times when the digging cable is in operation.
  • the displaceable or adjustable arrangement of the digging rope guide 50 with respect to the rope excavator or the articulation piece 60 can be seen on the basis of the perspective illustration in FIG Figure 3 explain.
  • the rope pulleys 52 of the digging rope guide 50 are received between the two side plates 54, at the foremost point of which one of the above-described rollers 53 is rotatably clamped.
  • Both side plates 54 are tapered on the side facing the pivot piece 60 in order to be received by the tubular receptacle 56 of the base plate 55.
  • the base plate 55 of the digging rope guide 50 is also supported by two guide rails 58 of the articulation plate 57 so that it can be moved relative to the latter. By means of the guide rails 58, the base plate 55 can be displaced in the horizontal direction with respect to the pivot piece 60.
  • the articulation plate 57 is releasably bolted to the articulation piece via the bolting points 61, so that the digging cable guide 50 can be removed during regular rope excavator operation or an existing rope excavator can simply be retrofitted with a suitable articulation piece.
  • the displacement is brought about by two hydraulic, detachable actuating cylinders 80 which are connected on the cylinder side to the articulation plate 60 and on the piston side to the base plate. Both cylinders 80 are parallel to a respective guide rail 58.
  • the guide axis of the digging rope guide 50 is aligned with the central axis of the pivot piece 60.
  • the digging rope guide 50 can move horizontally with respect to the central axis of the pivot piece 60 be shifted to the right or left.
  • the digging cable guide 50 can be pivoted relative to the cable excavator 10 or the receptacle 56.
  • the roller head of the digging rope guide 50 formed from side plates 54, rollers 52 and rollers 53, can be pivoted, for example, through a pivot angle of 360 °.
  • FIG. 4 Another detailed view of the base plate 55 and the receiving plate 57 is the two representations of the Figure 4 refer to. Both representations show the Combination of base and link plate 55, 57 without the side plates 54 including the roller arrangement 52, 53 of the digging rope guide 50.
  • the two hydraulic actuating cylinders 80 which are fastened inside next to the guide rails 58, and on the piston side with the base plate 55 and on the cylinder side can be seen are bolted to the pivot plate 60.
  • the hydraulic actuating cylinders 80 are actuated by the central control unit of the cable excavator.
  • the shift movement of the digging cable guide 50 is controlled or regulated in such a way that a minimum deflection angle of the wound digging cable with respect to the digging cable winch 41 is maintained.
  • the wear of the digging cable 40 and the digging cable winch 41 can be reduced.
  • the movable design of the digging cable guide 50 allows the use of a digging cable winch 41 with LEBUS grooves, which means that multi-layer winding is also possible for the digging cable winch 41.
  • a control method for controlling the digging rope guide 50 can be explained. Correct positioning of the adjustment device 100 of the digging cable guide 50 can guarantee the maximum cable angle of the digging cable 40 on the digging cable winch 41. For this purpose, a direction-dependent movement of the digging cable winch 41 can be detected via a measuring device 110 on the digging cable winch 41. A control computer 120 can now use the known geometric data of the digging cable winch 41 to calculate the current position of the cable leaving the digging cable winch 41. The adjusting device 100 of the digging rope guide 50 can thus be set to the correct position.
  • the adjustment device 100 is positioned such that the deflection angle of the digging cable 40 on the digging cable winch 41 is as close as possible to zero degrees or that the maximum permissible deflection angle is not exceeded in any case.
  • the current position of the adjustment device 100 can be measured back using a further measuring device 130 and, if necessary, corrected.
  • the winch movement must be recorded so that the control computer 120 can calculate the current rope exit position.
  • the speed of the digging cable winch 41 and the direction of rotation of the digging cable winch 41 are recorded.
  • an incremental encoder (not shown here) or a speed measurement via proximity switches can be used as the measuring device.
  • a path measurement on the adjustment device 100 is used. This supplies the current position to the control computer.
  • an integrated cylinder travel measurement can be used.
  • the digging rope guide according to the invention can be made much shorter.
  • Digging rope winches 41 with special grooves can also advantageously be used.
  • the use of digging rope winches 41 with special grooves enables the use of the digging rope winch 41 with the digging rope guide 50 even in higher rope layers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Earth Drilling (AREA)
  • Jib Cranes (AREA)

Claims (7)

  1. Engin de travail, en particulier pelle à câbles (10), pour le fonctionnement d'une benne râcleuse, avec une benne râcleuse (30) logée par l'intermédiaire d'un câble de levage (20), dans lequel la benne râcleuse (30) peut être introduite au moyen d'au moins d'un câble d'excavation (40) pour exécuter le mouvement râcleur et un guide de câble d'excavation (50) est disposé sur l'engin de travail pour guider le câble d'excavation (40), dans lequel le guide de câble d'excavation (50) est réalisé de manière mobile, en particulier de manière mobile linéairement, caractérisé en ce
    qu'un ou plusieurs moyens d'entraînement (80) sont prévus pour générer un mouvement linéaire du guide de câble d'excavation (50) et que des moyens de commande (120) sont prévus pour piloter le ou plusieurs moyens d'entraînement (80), dans lequel le pilotage tient compte de l'angle d'introduction du câble d'excavation (40) sur le treuil de câble d'excavation (41).
  2. Engin de travail selon la revendication 1, caractérisé en ce que le guide de câble d'excavation (41) est mobile de manière transversale par rapport à la direction d'introduction de câble d'excavation, en particulier dans la direction horizontale.
  3. Engin de travail selon l'une quelconque des revendications précédentes, caractérisé en ce que le câble d'excavation (40) peut être introduit au moyen d'au moins un treuil de câble d'excavation (41) avec une rainure de type Lebus.
  4. Engin de travail selon la revendication 1, caractérisé en ce qu'un ou plusieurs moyens d'entraînement comprennent un vérin hydraulique (80).
  5. Engin de travail selon la revendication 1, caractérisé en ce que les moyens de commande (120) sont réalisés de telle manière que du fait du pilotage du ou des plusieurs moyens de commande, la traction oblique du câble d'excavation (40) sur le treuil de câble d'excavation (41) est minimisée.
  6. Engin de travail selon l'une quelconque des revendications précédentes, caractérisé en ce que le guide de câble d'excavation (50) comprend au moins une poulie de câble supérieure et au moins une poulie de câble inférieure (52) avec un axe de rotation respectivement horizontal.
  7. Engin de travail selon l'une quelconque des revendications précédentes, caractérisé en ce que le guide de câble d'excavation (50) comprend au moins deux corps de cylindre (53) se faisant face, qui sont montés de préférence de manière à pouvoir tourner avec un axe de rotation vertical sur le guide de câble d'excavation (50).
EP14196941.0A 2013-12-27 2014-12-09 Machine de travail pour le fonctionnement de benne racleuse Active EP2889431B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013022108.0A DE102013022108A1 (de) 2013-12-27 2013-12-27 Arbeitsmaschine für den Schürfkübelbetrieb

Publications (3)

Publication Number Publication Date
EP2889431A2 EP2889431A2 (fr) 2015-07-01
EP2889431A3 EP2889431A3 (fr) 2015-10-07
EP2889431B1 true EP2889431B1 (fr) 2021-10-06

Family

ID=52023270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14196941.0A Active EP2889431B1 (fr) 2013-12-27 2014-12-09 Machine de travail pour le fonctionnement de benne racleuse

Country Status (5)

Country Link
US (1) US10113295B2 (fr)
EP (1) EP2889431B1 (fr)
AU (1) AU2014280935B2 (fr)
CA (1) CA2875704C (fr)
DE (1) DE102013022108A1 (fr)

Families Citing this family (3)

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CN108589818A (zh) * 2018-05-09 2018-09-28 广州文冲船厂有限责任公司 挖泥船耙头对地压力控制系统
WO2024031200A1 (fr) * 2022-08-12 2024-02-15 Minesense Technologies Ltd. Ensembles guides-câbles à rouleaux à cliquet et systèmes et procédés associés
CN118327096A (zh) * 2024-05-06 2024-07-12 抚顺力特机械有限公司 一种多功能全液压电控拉铲挖掘机及拉拽钢绳导向装置

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Also Published As

Publication number Publication date
EP2889431A3 (fr) 2015-10-07
CA2875704C (fr) 2021-08-10
DE102013022108A1 (de) 2015-07-02
AU2014280935A1 (en) 2015-07-16
EP2889431A2 (fr) 2015-07-01
CA2875704A1 (fr) 2015-06-27
AU2014280935B2 (en) 2017-12-14
US20150184357A1 (en) 2015-07-02
US10113295B2 (en) 2018-10-30

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