WO2012045444A1 - Machine de travail à fonction de burinage - Google Patents

Machine de travail à fonction de burinage Download PDF

Info

Publication number
WO2012045444A1
WO2012045444A1 PCT/EP2011/004953 EP2011004953W WO2012045444A1 WO 2012045444 A1 WO2012045444 A1 WO 2012045444A1 EP 2011004953 W EP2011004953 W EP 2011004953W WO 2012045444 A1 WO2012045444 A1 WO 2012045444A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
cable
work machine
machine according
seilfallstreckenändereinrichtung
Prior art date
Application number
PCT/EP2011/004953
Other languages
German (de)
English (en)
Inventor
Erich Sennebogen
Original Assignee
Sennebogen Maschinenfabrik 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 Sennebogen Maschinenfabrik Gmbh filed Critical Sennebogen Maschinenfabrik Gmbh
Publication of WO2012045444A1 publication Critical patent/WO2012045444A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/02—Bucket grabs
    • 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
    • B66C13/18—Control systems or devices
    • B66C13/20—Control systems or devices for non-electric drives
    • 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
    • B66D1/42—Control devices non-automatic
    • B66D1/44—Control devices non-automatic pneumatic of hydraulic
    • 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 working machine, in particular a cable excavator, a crane or the like, with the features of the preamble of claim 1.
  • Such a working machine is known from practice, for example in the form of a cable excavator and, for example, as a tool having a gripper, by means of which a slot for a slot wall or the like can be excavated.
  • the known cable excavator comprises as a console a structure with a motor or machine housing and a cab, which is rotatably mounted on a tracked chassis.
  • On the structure of a boom is articulated, which is formed for example of a grid construction and thus represents a so-called lattice boom.
  • the gripper is suspended from a cable arrangement, which is guided by bridging a fall distance to a roller assembly which is rotatably mounted on the console facing away from the end of the boom.
  • the ropes of the cable assembly are each guided to a winch, which is mounted on the console and can be actuated by means of a suitable drive member, so that the respective cable is wound on the respective cable winch or unwound from this.
  • a winch which is mounted on the console and can be actuated by means of a suitable drive member, so that the respective cable is wound on the respective cable winch or unwound from this.
  • One of the ropes of the rope assembly represents a tether on which the gripper is suspended.
  • a second cable of the cable arrangement represents a so-called closing cable, by the actuation of which a closing operation of the forceps-like gripper can be triggered.
  • CONFIRMATION COPY be crushed. This can be done by means of the gripper, which then performs a chisel function. To chisel the gripper is lifted by winding the tether on the winch several times in succession a certain amount from the ground to be dropped by releasing the winch and thus the tether to the ground, so that the material to be excavated crushed or smashed. For this purpose, an excavator operator repeatedly actuates a control lever for the winch of the tether. The chiseling process requires a high degree of experience and is also associated with a high physical stress on the excavator operator. Furthermore, the frequent winding and unwinding of the rope leads to high rope wear.
  • the invention has for its object to provide a working machine of the type mentioned in the introduction, which allows a comparison with the prior art simplified chiseling by means of the suspended from the cable assembly tool. This object is achieved by the working machine with the features of claim 1.
  • a working machine which comprises a console, on which a mast is arranged, and a tool which is suspended from a cable, which is guided via at least one cable reel mounted on a free end of the jib to a cable winch. which is actuated by means of a drive member.
  • the rope bridges a fall distance between the tool and the pulley.
  • At the winch and the tool at least one mechanically adjustable Seilfallstartn screws issued is arranged over which the cable runs and their operation by means of a drive device, so that the fall distance of the rope between a first, a stroke position of the tool associated length and a second, a lowered position of the Tool assigned length is changed.
  • the raising and lowering of the tool can thus be done by means of Seilfall schedulen applications worn without winding or unwinding of the rope is required by the relevant winch.
  • Seilfall schedulen the rope and the winch are exposed to the prior art described above considerably less wear than a repeated winding and unwinding of the rope on the winch or of the winch. Only by operating the Seilfall schedulen applications responded the tool can be raised. A reversed drive of the cable fall distance device or its release in turn leads to a lowering of the tool.
  • the lowering can be done by appropriate adjustment of the Seilfall schedulen an worn at least largely in free fall, so that by means of the tool a chisel process can be performed.
  • the working machine according to the invention thus a chiselling ofprooftragendem material is possible, even at great depths, which are not visible from the leader of the machine.
  • the triggered by the Seilfallrangen an unexpected stroke of the tool is for example up to about 1, 5 m.
  • the Seilfall schedulen selected is arranged on the boom.
  • the rope that runs over the Seilfallsharen selected is therefore guided by the winch to the arranged on the boom Seilfall schedulen selected observed and from there to the arranged at the free end of the boom pulley.
  • the Seilfall schedulen comprises at least one guide roller and a functional role whose axis is displaceable relative to the mast.
  • the rope is guided over both the guide roller and the functional roller.
  • a tensile force is exerted on the tether, which triggers a lifting of the suspended on the rope tool.
  • Releasing the functional roller or displacing the functional roller into the initial position leads to a lowering of the tool, so that in a free fall of the tool this performs a chisel process on the substrate to be removed.
  • the functional roller whose axis is displaceable relative to the boom, is between two Guide rollers each with a fixed axis arranged.
  • the fall arrester device thus comprises three pulleys, one of which is movable.
  • the pivot lever is preferably adjustable between two stops, one of which defines a stroke position of the tool or the rope and the other a lowering position of the tool or the rope.
  • the drive device can be decoupled from the Seilfallumblen- change device for lowering the tool. This can be ensured that the tool is largely lowered in free fall, without being slowed down by restraint moments of the drive device.
  • the decoupling can be done by means of a latch arrangement, so that the physical connection between the drive device and the Seilfall schedulen selected alien is canceled.
  • the decoupling can be done by means of a toggle lever arrangement which cancels the power flow between the drive device and the cable fall-distance device.
  • the drive device preferably comprises at least one cylinder, which may be a hydraulic cylinder. This can in turn be designed as a double-acting cylinder.
  • a control device For controlling the drive device, a control device is preferably provided. This preferably has an automatic chisel mode, which oscillates the fall distance of the tether in an alternating manner between the first length associated with the stroke position and the second length, that of the lowering position assigned.
  • the operator of the work machine on the control device only has to adjust the automatic chisel mode, whereby the cable chute changer is repeatedly actuated until the automatic chisel mode is deactivated again. This eliminates high physical stress on the worker when chiseling by means of the cable excavator.
  • control device can define a penetration depth storage position of the cable fall distance device, in which it is arranged in an intermediate position and the cable is unwound from the winch with respect to the first length, so that when the tool is lowered by means of the cable fall distance device, its penetration into a material to be shredded is guaranteed.
  • the tool is a gripper.
  • the gripper is designed as a slot wall gripper, by means of which the material to be excavated can be chiseled and thus loosened or shredded by operating the Seilfall schedulen selected nearby before an excavation process.
  • Fig. 1 is an overview view of a cable excavator according to the invention
  • Fig. 3 is a schematic representation of a Seilfall schedulen selected contrary.
  • a cable excavator 10 which can be used for lifting slots for so-called slot walls.
  • the cable excavator 10 as a console a structure 12, which has a machine housing and a cab.
  • the structure 12 is rotatably mounted on a crawler chassis 14.
  • a boom 16 is articulated on the structure 12, which is designed as a lattice boom and is held in position by means of a carrier cable construction not shown in detail.
  • the crawler 10 comprises a gripper 18 designed as a slot wall gripper which is suspended from a cable arrangement, of which for the sake of clarity only one tether 20 is shown here.
  • the tether 20 is guided by the gripper 18 over a drop distance X to a pulley 22 which is rotatably mounted at a free end of the lattice boom 16, and from there to a winch 24, which is arranged on the structure 12 and by means of a suitable Drive member is actuated so that the tether 20 can be unwound from the winch 24 or wound on the winch 24.
  • the tether 20 is guided by a Seilfall- branching device 26, by means of which the fall distance X between the pulley 22 and the gripper 18 can be changed without operating the winch 24.
  • the Seilfall schedulen serves as Schlappseilverhütung, so that the tether 20 between the pulley 22 and the winch 24 is at least substantially taut.
  • the Seilfall schedulen only acquired 26 includes a support frame 28 which is mounted on the lattice boom 16 and on which along the extension of the lattice boom 16, a first guide roller 30 and a second guide roller 32 are rotatably mounted. Based on the extension of the lattice jib 16, a function roller 34 is arranged between the two guide rollers 30 and 32, which is rotatably mounted on a pivot lever 36, which in turn is pivotally mounted on the support frame 28 via a bearing 38.
  • the pivot lever 36 has a long, arranged on one side of the bearing 38 lever arm 40 on which the functional roller 34 is mounted, and a short, arranged on the other side of the bearing 38 lever arm 42, at the free end of a hydraulic cylinder 44 is articulated, which is associated with a drive device for the pivot lever 36 and is supported with its end remote from the pivot lever 36 on the support frame 28.
  • the hydraulic cylinder 44 is connected to a supply member connected, which can be controlled by means of a control device also not shown.
  • the pivot lever 36 By means of the hydraulic cylinder 44, the pivot lever 36 between a first end position, which is defined by an elastic stop 46 and a lowering position of the tether 20 and the gripper 18 is assigned (position S in Fig. 1), and a second end position pivotally, the is defined by a second elastic stop 48 and a stroke position of the tether 20 and the gripper 18 is assigned (shown in phantom in Fig. 2, position H in Fig. 1).
  • the tether 20 is starting from the winch 24 first on the lattice boom 16 side facing via the guide roller 32, then guided on the side facing away from the lattice boom 16 on the function roller 34 and then on the lattice boom 16 side facing the guide roller 30. From here, the tether 20 is guided to the pulley 22.
  • an oscillating movement of the pivot lever 36 it is possible to raise and lower the tool or the gripper 18 alternately and repeatedly, without operating the winch 24, which significantly reduces the wear of the tether 20.
  • a material to be gripped and lifted can be loosened and shredded.
  • a chisel process can be performed.
  • an automatic chisel mode is adjustable, in which the pivot lever is reciprocated between the two end positions without any further action by the excavator operator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne une machine de travail, en particulier une dragline, une grue, etc., comprenant une console (12), sur laquelle est placé un mât (16) et un outil (18) qui est suspendu à un câble (20) lequel est conduit, sur au moins une poulie (22) montée à une extrémité libre de la flèche (16), jusqu'à un treuil (24) qui peut être actionné au moyen d'un organe d'entraînement. Le câble (20), entre l'outil (18) et la poulie (22), franchit une distance sans appuis. Entre le treuil (24) et l'outil (18) se trouve au moins un dispositif (26) de modification de la distance sans appuis, commandé mécaniquement, sur lequel passe le câble (20). Son actionnement par un dispositif d'actionnement (44) a pour effet que la distance sans appuis du câble (20) peut être amenée à varier entre une première longueur, qui correspond à une position de levage de l'outil (18), et une deuxième longueur, qui correspond à une position de descente de l'outil (18).
PCT/EP2011/004953 2010-10-05 2011-10-05 Machine de travail à fonction de burinage WO2012045444A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10013314.9 2010-10-05
EP10013314A EP2439164A1 (fr) 2010-10-05 2010-10-05 Machine de travail dotée d'une fonction de burin

Publications (1)

Publication Number Publication Date
WO2012045444A1 true WO2012045444A1 (fr) 2012-04-12

Family

ID=43608287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/004953 WO2012045444A1 (fr) 2010-10-05 2011-10-05 Machine de travail à fonction de burinage

Country Status (2)

Country Link
EP (1) EP2439164A1 (fr)
WO (1) WO2012045444A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385748A (zh) * 2018-04-26 2018-08-10 上海金泰工程机械有限公司 用于抓斗的钢丝绳自动涨紧结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105714871B (zh) * 2016-03-14 2017-11-21 天津长芦海晶集团有限公司 一种电动绳索牵引扒盐装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110566A (en) * 1935-05-06 1938-03-08 Benoto Sa Apparatus for the operation of grabs, buckets, and the like
US2808166A (en) * 1955-02-28 1957-10-01 Oliver C Stine Clamshell bucket closure attachment
US2899082A (en) * 1959-08-11 meloy
GB837944A (en) * 1957-10-17 1960-06-15 Potain & Cie Ets F Improvements in grab cranes
GB1253010A (fr) * 1970-04-04 1971-11-10
GB2001030A (en) * 1977-07-14 1979-01-24 Automatic Drilling Mach Vertical motion compensated crane apparatus
EP0284956A2 (fr) * 1987-03-28 1988-10-05 Nordmeyer Kg Treuil de levage, de descente ou de fonctionnement à percussion en chute libre périodique, au choix
DE19933771A1 (de) * 1999-07-19 2001-01-25 Liebherr Werk Nenzing Kran

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899082A (en) * 1959-08-11 meloy
US2110566A (en) * 1935-05-06 1938-03-08 Benoto Sa Apparatus for the operation of grabs, buckets, and the like
US2808166A (en) * 1955-02-28 1957-10-01 Oliver C Stine Clamshell bucket closure attachment
GB837944A (en) * 1957-10-17 1960-06-15 Potain & Cie Ets F Improvements in grab cranes
GB1253010A (fr) * 1970-04-04 1971-11-10
GB2001030A (en) * 1977-07-14 1979-01-24 Automatic Drilling Mach Vertical motion compensated crane apparatus
EP0284956A2 (fr) * 1987-03-28 1988-10-05 Nordmeyer Kg Treuil de levage, de descente ou de fonctionnement à percussion en chute libre périodique, au choix
DE19933771A1 (de) * 1999-07-19 2001-01-25 Liebherr Werk Nenzing Kran

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108385748A (zh) * 2018-04-26 2018-08-10 上海金泰工程机械有限公司 用于抓斗的钢丝绳自动涨紧结构
CN108385748B (zh) * 2018-04-26 2023-10-20 上海金泰工程机械有限公司 用于抓斗的钢丝绳自动涨紧结构

Also Published As

Publication number Publication date
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