EP0168711A1 - Dispositif de préhension - Google Patents

Dispositif de préhension Download PDF

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Publication number
EP0168711A1
EP0168711A1 EP85108191A EP85108191A EP0168711A1 EP 0168711 A1 EP0168711 A1 EP 0168711A1 EP 85108191 A EP85108191 A EP 85108191A EP 85108191 A EP85108191 A EP 85108191A EP 0168711 A1 EP0168711 A1 EP 0168711A1
Authority
EP
European Patent Office
Prior art keywords
bearing
gripping
gripping members
pivot lever
bearing shell
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.)
Granted
Application number
EP85108191A
Other languages
German (de)
English (en)
Other versions
EP0168711B1 (fr
Inventor
Erich Sennebogen
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.)
Sennebogen Erich
Original Assignee
Zeppelin Metallwerke 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 Zeppelin Metallwerke GmbH filed Critical Zeppelin Metallwerke GmbH
Priority to AT85108191T priority Critical patent/ATE34588T1/de
Publication of EP0168711A1 publication Critical patent/EP0168711A1/fr
Application granted granted Critical
Publication of EP0168711B1 publication Critical patent/EP0168711B1/fr
Expired legal-status Critical Current

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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
    • 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
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
    • E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom

Definitions

  • the invention relates to a gripping device, in particular for an excavator, according to the preamble of claim 1.
  • Gripping devices of this type are used for the excavation of foundations, trenches, shafts and the like, as well as for loading bulk goods.
  • the widths of the gripping members are usually selected in accordance with the respective application. Sizes between 300 mm for narrow trenches and up to approx. 800 mm for large excavation volumes are common.
  • the invention has for its object to design the gripping device so that the gripping members can be replaced in a simple and economical manner.
  • the quick-change device allows the gripping elements to be replaced quickly and largely automatically.
  • the storage of the gripping member with a bearing axis in an open bearing shell allows these bearing parts to be moved into or out of engagement with one another simply by a relative movement between the gripping member and the actuating device remaining on the working machine.
  • this is possible in that the gripping members lie on the floor or are placed there and the operator of the working machine executes the corresponding relative movement with the rest of the gripping device.
  • the connection between the gripping member and the actuatable pivot lever, via which the actuating device acts, can be released or closed by a worker before or after this movement.
  • a simple connection, for example a plug pin, is sufficient here.
  • the attack of the pivot lever at a distance from the bearing shell ensures a relative position of the gripping members to the bearing, by means of which the bearing axis is securely supported in all working positions.
  • the feature of claim 4 addresses a particularly simple and economical embodiment in production and mode of operation.
  • the feature of claim 8 further facilitates the automatic connection between the bearing axis and the bearing shell.
  • the feature of claim 9 relates to an embodiment in which the bearing axis is relieved. In addition, tilting and bending of the gripping members, if they have a shell shape, are avoided.
  • the gripping device shown in FIGS. 1 and 3 in various operating positions has a carrier device designated as a whole by 1, an actuating device designated as a whole by 2 and two shell-shaped gripping members 3.
  • the carrier device 1 essentially consists of a suspension part 4, for attachment to a suspension counterpart of an excavator, which is only indicated at 5,
  • the actuating device 2 includes two cylinder-piston units 8 and two pivot levers 9.
  • the cylinder-piston units are each supported by their end on the cylinder 6 on the rotating mechanism 6 by means of a clamping sleeve 10 and a plug pin 11 (FIG. 6).
  • the piston end is pivotally connected to the pivot lever 9 by means of a bearing pin 12.
  • the point of attack lies at a different distance from both ends of the pivot lever 9.
  • Each pivot lever 9 is firmly connected to a bearing shell 13.
  • the bearing shells 13 are each claw-like in the shape of a circular arc, and they extend over more than a semicircle.
  • Each bearing shell 13 and thus the pivot lever 9 connected to it is rotatably mounted on the frame 7 of the carrier device 1 by means of a bearing 14.
  • the two bearing shells are connected to one another by a linkage 15, which acts on each bearing shell in the area near the bearing 14.
  • the cup-shaped gripping members 3 have approximately the shape of a quarter circle surface in cross section.
  • a bearing axis 16 extends through the cross-sectional area corresponding to the ideal center of the circle and is tubular. Together with the bearing shells 13, this forms the pivot bearing for opening and closing the gripping members.
  • These areas of both gripping members are connected to one another by a tab 17.
  • An articulation point 18 for the pivot lever 9 is arranged at an angle between the circular arc and the radius of the cross section.
  • a stop 19 is attached in this area.
  • Fig. 1 shows the starting position for receiving gripping members by the other devices.
  • the gripping members 3 are in an open position, supported on the floor with one edge each.
  • a support 20 indicated by dashed lines in FIG. 1 is provided in the area of the tab 17. This can consist of wood, stone or sand.
  • the cylinder-piston devices are in their retracted position on the actuating device. As a result, the pivot levers 9 adhere to a substantially vertical posture and the bearing shells 13 are directed downward with their opening.
  • Fig. 3 shows the gripping device in the position of use, wherein the gripping members 3 are closed by extending the cylinder-piston unit 8.
  • the arrangement of the three articulation points: articulation point 18, bearing pin 12 and bearing axis 16 to one another forms an obtuse angle which, together with the cross section of the bearing shell 13 and the linkage 15, ensures that the bearing shell always supports the bearing axis of the gripping member and transmits the forces to the pivot lever 9 .
  • the loosening of the gripping members from the carrier device is carried out in the reverse manner just as quickly and simply: the opened gripping members are to be supported on the floor, the bolts 21 in the articulation points 18 are removed and, after a corresponding pivoting movement of the pivoting levers or bearing shells, the carrier and actuating device can be by means of the working machine can be lifted off the gripping member.
  • FIG. 5 shows the support 22 once in the support position with solid lines and once with a broken outline in the folded-down position. The support 22 prevents canting and bending of the gripping members 3 and their bearing axes 16.
  • FIG. 6 shows an enlarged detail. It is a section through the articulation point of the cylinder-piston units 8 on the slewing gear 6 by means of a clamping sleeve 10 and a plug pin 11.
  • the frame 7 of the carrier unit is also held on the slewing gear 6 with the same plug pin 11.
  • the frame 7 can be removed from the slewing gear by removing the plug pin 11, the cylinder-piston unit 8 still being held on the slewing gear by the clamping sleeve.
  • the frame 7 together with the pivoted lever 9 and bearing shells hinged to it can be removed, only the connection between the pivoted lever and the cylinder piston unit has to be released.
  • An exchange of the frame with swivel lever and bearing shells can prove to be advantageous when using particularly heavy gripping members.
  • the heavy slewing gear, as well as the cylinder piston unit with all connections can remain on the machine.
  • the invention is not restricted to the exemplary embodiments. Gripping members of any shape can be used within the scope of the invention. Details of the carrier device and the actuating device can also vary insofar as the connection possibility according to the invention with the gripping members remains.
  • more than two gripping members can also be arranged in a star shape around the carrier, in each case with actuating cylinders, pivoting levers and bearing shells.
  • the bearing shells can be pivotally connected to the pivoting levers and can be fitted directly by the cylinder-piston unit.
  • the swiveling levers are then moved and locked by hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Shovels (AREA)
  • Polarising Elements (AREA)
  • Processing Of Meat And Fish (AREA)
EP85108191A 1984-07-11 1985-07-02 Dispositif de préhension Expired EP0168711B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108191T ATE34588T1 (de) 1984-07-11 1985-07-02 Greifvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3425542A DE3425542C2 (de) 1984-07-11 1984-07-11 Greifervorrichtung
DE3425542 1984-07-11

Publications (2)

Publication Number Publication Date
EP0168711A1 true EP0168711A1 (fr) 1986-01-22
EP0168711B1 EP0168711B1 (fr) 1988-05-25

Family

ID=6240378

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108191A Expired EP0168711B1 (fr) 1984-07-11 1985-07-02 Dispositif de préhension

Country Status (3)

Country Link
EP (1) EP0168711B1 (fr)
AT (1) ATE34588T1 (fr)
DE (2) DE3425542C2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001749C2 (nl) * 1995-11-27 1997-05-30 Martien Dirk Van Zandwijk Koppelinrichting.
FR2808261A1 (fr) * 2000-04-17 2001-11-02 Liebherr Hydraulikbagger Changeur rapide pour des grappins multicoques, grappin mulitcoque pour un tel changeur et traverse de charge
CN103253592A (zh) * 2013-05-13 2013-08-21 武汉海王机电工程技术公司 能自动抓取和释放货物的机械吊具
GB2522420A (en) * 2014-01-22 2015-07-29 Caterpillar Work Tools Bv Exchange system for implement of machine
CN105217443A (zh) * 2015-10-29 2016-01-06 上海金泰工程机械有限公司 双油缸双拉杆抓斗
CN111115447A (zh) * 2020-01-21 2020-05-08 四川大学 固定装置和工程机械
RU2764528C1 (ru) * 2021-06-03 2022-01-18 Федеральное государственное бюджетное учреждение науки Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской академии наук Способ разработки тонких рудных жил

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9010351U1 (fr) * 1990-07-09 1990-09-13 Nagler, Juergen, 5804 Herdecke, De
DE29601644U1 (de) * 1996-01-31 1997-06-05 Liebherr Hydraulikbagger Auswechselbarer Zweischalengreifer
DE202020104693U1 (de) 2020-08-13 2021-11-16 Rolf Mieger Antrieb für einen Greifer, Greifer und Baumaschine

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731163A (en) * 1953-03-04 1956-01-17 Shawnee Mfg Company Inc Ditching machine having swingably mounted clamshell bucket
FR1325723A (fr) * 1962-03-19 1963-05-03 Benoto Sa Benne preneuse à commande hydraulique
FR1366185A (fr) * 1963-05-30 1964-07-10 Venissieux Atel Benne preneuse articulée sur un bras support
FR1376526A (fr) * 1963-06-11 1964-10-31 Poclain Sa Perfectionnements aux bennes preneuses à deux coquilles
FR1435124A (fr) * 1965-03-01 1966-04-15 Auxitra Benne preneuse
GB1080183A (en) * 1965-03-26 1967-08-23 Bamford Excavators Ltd Improvements relating to hydraulically operated grabs
FR1556768A (fr) * 1967-04-11 1969-02-07 Du Pont
US4023848A (en) * 1976-01-05 1977-05-17 J. I. Case Company Log grapple
US4047313A (en) * 1975-02-10 1977-09-13 International Harvester Company Convertible grab bucket
EP0054207A2 (fr) * 1980-12-02 1982-06-23 Serge Vuistiner Dispositif hydraulique pour engin de terrassement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731163A (en) * 1953-03-04 1956-01-17 Shawnee Mfg Company Inc Ditching machine having swingably mounted clamshell bucket
FR1325723A (fr) * 1962-03-19 1963-05-03 Benoto Sa Benne preneuse à commande hydraulique
FR1366185A (fr) * 1963-05-30 1964-07-10 Venissieux Atel Benne preneuse articulée sur un bras support
FR1376526A (fr) * 1963-06-11 1964-10-31 Poclain Sa Perfectionnements aux bennes preneuses à deux coquilles
FR1435124A (fr) * 1965-03-01 1966-04-15 Auxitra Benne preneuse
GB1080183A (en) * 1965-03-26 1967-08-23 Bamford Excavators Ltd Improvements relating to hydraulically operated grabs
FR1556768A (fr) * 1967-04-11 1969-02-07 Du Pont
US4047313A (en) * 1975-02-10 1977-09-13 International Harvester Company Convertible grab bucket
US4023848A (en) * 1976-01-05 1977-05-17 J. I. Case Company Log grapple
EP0054207A2 (fr) * 1980-12-02 1982-06-23 Serge Vuistiner Dispositif hydraulique pour engin de terrassement

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1001749C2 (nl) * 1995-11-27 1997-05-30 Martien Dirk Van Zandwijk Koppelinrichting.
FR2808261A1 (fr) * 2000-04-17 2001-11-02 Liebherr Hydraulikbagger Changeur rapide pour des grappins multicoques, grappin mulitcoque pour un tel changeur et traverse de charge
CN103253592A (zh) * 2013-05-13 2013-08-21 武汉海王机电工程技术公司 能自动抓取和释放货物的机械吊具
GB2522420A (en) * 2014-01-22 2015-07-29 Caterpillar Work Tools Bv Exchange system for implement of machine
GB2522420B (en) * 2014-01-22 2018-09-05 Caterpillar Work Tools Bv Exchange system for implement of machine
CN105217443A (zh) * 2015-10-29 2016-01-06 上海金泰工程机械有限公司 双油缸双拉杆抓斗
CN111115447A (zh) * 2020-01-21 2020-05-08 四川大学 固定装置和工程机械
CN111115447B (zh) * 2020-01-21 2024-04-19 四川大学 固定装置和工程机械
RU2764528C1 (ru) * 2021-06-03 2022-01-18 Федеральное государственное бюджетное учреждение науки Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской академии наук Способ разработки тонких рудных жил

Also Published As

Publication number Publication date
DE3425542C2 (de) 1986-12-04
EP0168711B1 (fr) 1988-05-25
DE3425542A1 (de) 1986-01-23
ATE34588T1 (de) 1988-06-15
DE3562931D1 (en) 1988-06-30

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