EP3875692A1 - Système de changement rapide pour un engin de construction - Google Patents

Système de changement rapide pour un engin de construction Download PDF

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Publication number
EP3875692A1
EP3875692A1 EP21157045.2A EP21157045A EP3875692A1 EP 3875692 A1 EP3875692 A1 EP 3875692A1 EP 21157045 A EP21157045 A EP 21157045A EP 3875692 A1 EP3875692 A1 EP 3875692A1
Authority
EP
European Patent Office
Prior art keywords
bearing
openings
quick
side cheeks
opening
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
EP21157045.2A
Other languages
German (de)
English (en)
Other versions
EP3875692B1 (fr
Inventor
Michael Kollmann
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.)
Oilquick Deutschland KG
Original Assignee
Oilquick Deutschland KG
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 Oilquick Deutschland KG filed Critical Oilquick Deutschland KG
Publication of EP3875692A1 publication Critical patent/EP3875692A1/fr
Application granted granted Critical
Publication of EP3875692B1 publication Critical patent/EP3875692B1/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
    • E02F3/28—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
    • 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
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • 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
    • E02F3/3604—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
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • 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
    • E02F3/3636—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using two or four movable transversal pins
    • 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
    • E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
    • 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
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

Definitions

  • the invention relates to a quick coupler according to the preamble of claim 1.
  • Such quick couplers are used for simple and convenient changing of different attachments on construction machines.
  • a quick coupler e.g. swivel spoons, grippers, scissors, compressors, magnets, hydraulic hammers or other attachments can be coupled or uncoupled from a driver's cab, e.g. to a boom of an excavator, in a few seconds and with a high level of safety.
  • a generic quick coupler is known. This has a support that can be mounted on a boom arm of an excavator and has a base body and parallel side walls. To fasten the carrier to the excavator, opposite through openings for receiving rear and front bearing bushes for receiving fastening bolts are arranged on the side cheeks of the carrier. The through openings are designed as elongated holes.
  • the bearing bushes have an outer contour that is adapted to the shape of the elongated holes and are arranged in the through-openings in such a way that they are secured against rotation by this outer contour. Due to the different arrangement of the bores within the bearing bushes and the different diameters of the bores, the quick coupler can be adapted to different distances between the fastening bolts and to fastening bolts with different diameters.
  • the object of the invention is to create a quick changer of the type mentioned at the beginning, which has an extended area of application and can be used universally.
  • At least two opposing first bearing bushes are rotated about a center axis of a receiving opening of the Bearing bushing offset axis can be used in different angular positions in first opposite through openings in the side cheeks and have an outer contour for an engagement secured against rotation in a corresponding inner contour on the through openings.
  • the position of the receiving opening of the first bearing bushing relative to the side cheek can thus easily be changed and adapted to the respective needs.
  • the outer contour on the bearing bushing and the corresponding inner contour on the through opening in the side cheeks result in a form-fitting connection with mutual engagement between the bearing bushing and the side cheek, which enables a particularly stable connection that is well secured against undesired adjustment.
  • the opposite second bearing bushes are arranged in second through openings in the side cheeks designed as elongated holes and secured against displacement by means of a form-fit connection formed by arcuate recesses on the top and bottom of the second through opening and corresponding arcuate elevations on the second bearing bush are.
  • the first bearing bushes can be rotated for adjustment and the second bearing bushes can also be moved into different positions for adjustment. In the desired positions, the first and second bearing bushes are then secured against rotation. As a result, an improved possibility of adjustment is achieved with nevertheless precise and safe positioning.
  • the outer contour on the first bearing bushes and the inner contour on the first through openings are designed as a polygonal profile.
  • the positive connection between the first bearing bushes and the side cheeks can, for example, also be achieved by external and internal splines, by a splined shaft and splined hub profile, or by an external and internal polygon profile.
  • the outer contour can expediently be arranged on an engagement part of the bearing bush that engages in the first through opening.
  • the first bearing bushing can have a fastening flange provided with threaded bores for fastening to the side cheek.
  • the second bearing bushes can be fastened to the side cheeks via a retaining washer.
  • the retaining disk can, for example, be arranged on the outside of the side cheek and screwed to the second bearing bush with screws.
  • a quick coupler 1 is shown for simple and convenient changing of different attachments on construction machines, in particular excavators.
  • swivel spoons, grippers, scissors, magnets, compressors, hydraulic hammers or other mechanical or hydraulic attachments can be easily and conveniently coupled or uncoupled from a driver's cab to a boom or other attachment of an excavator or other construction vehicle .
  • the quick coupler 1 contains a carrier made as a welded construction or as a cast part, which contains a base part 2 and two parallel side walls 3 with through openings 4 and 5 for receiving bearing bushes 6 and 7 for two connecting bolts 8 parallel to one another.
  • the quick coupler 1 can be mounted, for example, on a cantilever arm of an excavator or other working device via the connecting bolts 8.
  • the base part 2 designed in cross section as an inverted U-profile, has on one side rearwardly open first receptacles 9 for receiving and holding a first bolt-shaped coupling element and on the other side downwardly open second receptacles 10 for receiving and holding a second bolt-shaped coupling element .
  • the bolt-shaped coupling elements can be arranged, for example, on an attachment or an adapter that can be fastened to the attachment.
  • the quick changer 1 contains two spaced apart first receptacles 9 for the first coupling element on the rear side of the base part 4 and two spaced apart receptacles 10 for the second coupling element on the front.
  • the rearwardly open first receptacles 9 are fork-shaped or claw-shaped.
  • the downwardly open second receptacles 10 have a curved lower contact surface 11 for the contact of the second bolt-shaped coupling element.
  • the downwardly open second receptacles 10 are closed on the underside by the bolt-shaped locking elements 13, which are arranged displaceably in the guide bores 12 in the base part 2, so that the second bolt-shaped coupling element is gripped under and held by the bolt-shaped locking elements 13.
  • the bolt-shaped locking elements 13 hook-shaped or differently shaped locking elements can also be arranged on the base part 2 of the carrier.
  • the quick coupler 1 which is usually arranged on the boom of an excavator, is first moved in such a way that the first coupling element arranged on an adapter or directly on the attachment into the claw-shaped or fork-shaped receptacles 9 one side of the quick coupler 1 is retracted. Then the quick changer 1 with the locking elements 13 still retracted is pivoted around the first bolt-shaped coupling element so that the second coupling element on the adapter or attachment comes to rest on the contact surfaces 11 of the downwardly open receptacles 10 on the other side of the quick changer 1.
  • the locking elements 13, which are arranged displaceably in the guide bores 12 in the base part 2 of the carrier, can then be hydraulically extended, so that the second bolt-shaped coupling element engages under the two bolt-shaped locking elements 13 on the quick coupler 1 and the attachment is thus held on the quick coupler 1.
  • first bearing bushings 6 are in the two side cheeks 3 of the carrier and two opposite front through openings 5 for receiving second bearing bushings 7 are provided.
  • the first bearing bushes 6 arranged at the rear have an engagement part 14 for engagement in the rear through opening 4 and a fastening flange 16 provided with threaded bores 15.
  • the engagement part 14 of the rear bearing bush 6 has an outer contour 17, here designed as an external hexagon profile, for positive engagement with a corresponding inner contour 18, here designed as an internal hexagon profile, of the rear through opening 5.
  • the first bearing bush 6 can within the through opening 4 by an in Figure 1
  • the axis 19 shown can be rotated in different angular positions and inserted into the through opening 5 in a certain position secured against rotation.
  • a receiving bore 20 eccentric to the axis 19 is provided in the first bearing bush 6 .
  • the central axis 21 of the receiving bore 20 is offset with respect to the axis 19, so that the position of the receiving bore 20 relative to the side cheek 3 can be changed by rotating the first bearing bush 6.
  • a plurality of through bores 22 for screws 23, which are aligned with the threaded bores 15 in the fastening flange 16, are arranged around the through opening 5 in the side cheeks 3.
  • the bearing bushing 6 inserted in a certain angular position into the through opening 4 of the side cheek 3 can be fastened to the side cheek 3 via the screws 23.
  • the outer contour 17 and the corresponding inner contour 18 can expediently be designed as a polygonal profile.
  • the connection between the bearing bush 6 and the side cheek 3 can, for example, also be made by external and internal splines, by a splined shaft and splined hub profile, or by an external and internal polygonal profile.
  • the second through-openings 5 arranged at the front in the side cheeks 3 are designed as elongated holes with arcuate recesses 24 on the top and bottom.
  • the second bearing bushes 7 arranged at the front have an oval base body with a flange 25 and an engagement area 26 for form-fitting engagement in the front through-opening 5.
  • the engagement area 26 contains on its top and bottom sides corresponding to the depressions 24 arcuate elevations 27.
  • the front bearing bush 7 is also a receiving bore 28 for receiving a Fastening bolt 8 arranged. Due to the design of the front through opening 5 and the engagement area 26, the bearing bush 7 can be inserted within the through opening 5, which is designed as an elongated hole, at various points on the side cheek 3 and is secured there against displacement. Thus, the position of the receiving bore 28 relative to the side wall 3 can be changed easily.
  • the attachment of the front bearing bush 7 to the side wall 3 is carried out by an in Figure 1
  • the retaining disk 29 shown which is arranged on the outside of the side cheek 3 and is screwed to the bearing bush 7 by means of screws 30.
  • through-bores 31 are provided in the retaining disk 29 and corresponding threaded bores 32 are provided in the bearing bush 7.
  • the fastening bolts 8 can be fixed to the side cheeks 3 via fastening elements 33 and threaded bores 34 in the side cheeks 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP21157045.2A 2020-03-02 2021-02-15 Système de changement rapide pour un engin de construction Active EP3875692B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020105460.2A DE102020105460A1 (de) 2020-03-02 2020-03-02 Schnellwechsler

Publications (2)

Publication Number Publication Date
EP3875692A1 true EP3875692A1 (fr) 2021-09-08
EP3875692B1 EP3875692B1 (fr) 2023-07-05

Family

ID=74625845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21157045.2A Active EP3875692B1 (fr) 2020-03-02 2021-02-15 Système de changement rapide pour un engin de construction

Country Status (12)

Country Link
US (1) US12065802B2 (fr)
EP (1) EP3875692B1 (fr)
JP (1) JP2021139284A (fr)
CN (1) CN113338373B (fr)
AU (1) AU2021200771B2 (fr)
CA (1) CA3109025A1 (fr)
DE (1) DE102020105460A1 (fr)
DK (1) DK3875692T3 (fr)
ES (1) ES2954947T3 (fr)
FI (1) FI3875692T3 (fr)
HU (1) HUE062947T2 (fr)
PL (1) PL3875692T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4306668A1 (fr) 2022-07-14 2024-01-17 Elvalhalcor Hellenic Copper and Aluminium Industry S.A. Procédé de production de tôle de canette d'aluminium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102613575B1 (ko) * 2022-05-03 2023-12-14 대모 엔지니어링 주식회사 굴삭기용 마운팅 브라켓 연결구조체
US20240240428A1 (en) * 2023-01-13 2024-07-18 Caterpillar Inc. Adapter Bracket for Coupling a Work Tool and a Work Machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207693A (en) * 1976-08-18 1980-06-17 Hemphill Charles W Backhoe bucket adapter bushing and pin method and apparatus
JPH0726576A (ja) * 1993-07-09 1995-01-27 Kubota Corp バックホウの枢支部構造
WO1999006317A1 (fr) 1997-07-30 1999-02-11 Allied Construction Products, Inc. Systeme de montage d'outil
WO2003069077A1 (fr) * 2002-01-14 2003-08-21 Kent Demolition, Inc. Ensemble connecteur pour le montage d'un instrument sur un element moteur

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5951192A (en) * 1996-04-24 1999-09-14 Entek Manufacturing, Inc. Quick connect system for excavator buckets
US5975604A (en) * 1997-05-27 1999-11-02 Wolin; Robert H. Grapple with universal attachment device
US5927665A (en) * 1998-07-02 1999-07-27 Allied Construction Products, Inc. Implement mounting system
JPH11269909A (ja) * 1998-03-23 1999-10-05 Kobelco Constr Mach Eng Co Ltd 作業アタッチメント保持ブラケット
CA2234893A1 (fr) * 1998-04-15 1999-10-15 Glenn R. Palmer Mecanisme de fixation ajustable
US6158917A (en) * 1999-02-23 2000-12-12 Wolin; Robert H. Retention mechanism for mounting pins
US6364561B1 (en) 1999-05-28 2002-04-02 David Scribner Droegemueller Connector system for earth working machines
SE0001651D0 (sv) * 2000-05-04 2000-05-04 Indexator Ab Sätt att fästa ett verktyg och infästning därav
US6662681B2 (en) * 2002-01-14 2003-12-16 Kent Demolition, Inc. Connector assembly for mounting an implement to a prime mover
EP2419570B1 (fr) * 2009-07-09 2014-05-07 Armagh (Vic.) Pty Ltd. Appareil de liaison d'outil à une machine
FI20125972A (fi) * 2012-09-20 2014-03-21 R N D Universal Oy Sovitin
DE102017110586B4 (de) 2017-05-16 2023-03-23 OilQuick Deutschland KG Schnellwechsler und Schnellwechselsystem mit einem derartigen Schnellwechsler
CN209293087U (zh) * 2018-12-18 2019-08-23 江苏建筑职业技术学院 一种用于挖掘机的多用快速连接头

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207693A (en) * 1976-08-18 1980-06-17 Hemphill Charles W Backhoe bucket adapter bushing and pin method and apparatus
JPH0726576A (ja) * 1993-07-09 1995-01-27 Kubota Corp バックホウの枢支部構造
WO1999006317A1 (fr) 1997-07-30 1999-02-11 Allied Construction Products, Inc. Systeme de montage d'outil
WO2003069077A1 (fr) * 2002-01-14 2003-08-21 Kent Demolition, Inc. Ensemble connecteur pour le montage d'un instrument sur un element moteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4306668A1 (fr) 2022-07-14 2024-01-17 Elvalhalcor Hellenic Copper and Aluminium Industry S.A. Procédé de production de tôle de canette d'aluminium
WO2024012809A1 (fr) 2022-07-14 2024-01-18 Elvalhalcor Hellenic Copper And Aluminium Industry S.A. Procédé de production d'une feuille pour canettes en aluminium

Also Published As

Publication number Publication date
ES2954947T3 (es) 2023-11-27
AU2021200771A1 (en) 2021-09-16
CN113338373B (zh) 2023-04-25
US20210270005A1 (en) 2021-09-02
CA3109025A1 (fr) 2021-09-02
DE102020105460A1 (de) 2021-09-02
HUE062947T2 (hu) 2023-12-28
JP2021139284A (ja) 2021-09-16
AU2021200771B2 (en) 2024-05-16
CN113338373A (zh) 2021-09-03
US12065802B2 (en) 2024-08-20
EP3875692B1 (fr) 2023-07-05
PL3875692T3 (pl) 2023-08-28
DK3875692T3 (da) 2023-08-07
FI3875692T3 (en) 2023-08-02

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