EP0448788A1 - Dispositif d'accouplement rapide pour excavateur - Google Patents

Dispositif d'accouplement rapide pour excavateur Download PDF

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Publication number
EP0448788A1
EP0448788A1 EP90122462A EP90122462A EP0448788A1 EP 0448788 A1 EP0448788 A1 EP 0448788A1 EP 90122462 A EP90122462 A EP 90122462A EP 90122462 A EP90122462 A EP 90122462A EP 0448788 A1 EP0448788 A1 EP 0448788A1
Authority
EP
European Patent Office
Prior art keywords
pistons
adapter
pressure
locking
housing
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
EP90122462A
Other languages
German (de)
English (en)
Other versions
EP0448788B1 (fr
Inventor
Reinhard Stenger
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0448788A1 publication Critical patent/EP0448788A1/fr
Application granted granted Critical
Publication of EP0448788B1 publication Critical patent/EP0448788B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—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 longitudinal locking element
    • 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
    • E02F3/3631—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 transversal locking element
    • 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-change device according to the preamble of claim 1.
  • a quick coupling for connecting an implement to a shovel loader which comprises a pair of bolts which can be brought into or out of engagement with holes in the implement.
  • the bolts are actuated via linkage and bellcrank, which are connected to a compressed air cylinder.
  • Such an arrangement requires a relatively large amount of space and the forces to be used to adjust the bolts are relatively high.
  • the object of the invention is to provide a quick-change device which can be accommodated as a structural unit to save space on the articulated arm, has a stable structure and ensures a reliable connection between the implement and the articulated arm.
  • the main advantages achieved with the invention are that the locking bolts are in an interlocking position by an interposed single compression spring and the locking bolts or the pistons of the locking bolts are pressurized accordingly only for adjustment to a rest position (unlocking position). This ensures that the system is solely under the tension of the compression spring in the locking position and thus this position is not endangered if the pressure circuit fails.
  • the locking elements consisting of coaxially arranged pistons with locking bolts in a cylindrical housing, can be accommodated in a space-saving manner in an adapter and can be dimensioned according to the requirements with regard to the absorption of forces and moments.
  • the hydraulic control circuit is designed so that the pistons move back against the tension of the compression spring can take place.
  • the pistons could also be pressurized in the effective direction of the compression spring.
  • a unit consisting of a pair of pistons with two locking pins or two pairs of pistons with four locking pins can be used.
  • the pistons are adjusted via an actuatable multi-way valve of the control unit, which can be adjusted manually or electrically using a switch.
  • the implement to be connected to the articulated arm is hung on the adapter, for which purpose this comprises a hook which positively engages around a cam of the implement.
  • a quick-change device 1 for an implement, such as for a backhoe 2 is accommodated in an adapter 3, which is connected to a coupling rod 4 and an articulated arm 5.
  • the locking elements 6 are fastened in the adapter 3, these being arranged between the legs 7 and 8 of the bucket 2 for holding.
  • the locking element 6 comprises in a cylindrical housing 9 coaxially arranged pistons 10 and 11 with locking bolts 12 and 13 formed at the ends. Between the two pistons 10 and 11 a compression spring 14 is arranged which seeks to move the pistons apart in the arrow directions 16.
  • Such a locking element 6 is shown in more detail in FIG. 4, with the locking bolt 12 in a retracted rest position R and the further locking bolt 13 in an extended working position A for the sake of simplicity in a drawing.
  • the locking bolts 12 and 13 together always have the same position A or R.
  • the pistons 10 and 11 are connected to a hydraulic pressure circuit of a control unit 15 in such a way that the pistons can be displaced from the working position A into the rest position R against the direction of the arrow 16.
  • the pistons 10 and 11 have a pressure chamber 17 between the locking bolts 12 and 13 and the housing 9, into each of which a pressure line 18, 18a opens.
  • This pressure chamber 17 is delimited on the one hand by a guide sleeve 19 and on the other hand by a pressure flange 20 of the respective piston.
  • the compression spring 14 is supported at the end in blind bores 21 and 22 of the pistons 10 and 11. It penetrates a central transverse wall 23 on which the pressure flanges 20, 20a of the pistons 10 and 11 are supported in the rest position R.
  • FIG. 8 a first possible hydraulic circuit diagram for the control of the pistons 10 and 11 in the rest position R is shown schematically.
  • This control unit 15 essentially comprises a line 30 guided by a pump 28 via a multi-way valve 29, from which lines 18 and 18a branch to the pressure chambers 17 of the pistons 10 and 11.
  • FIG. 15a A second possible hydraulic circuit diagram for the control of the pistons 10 and 11 in the rest position R and for support in the working position A is shown schematically in FIG.
  • the control unit 15a comprises two outgoing pressure lines 30 and 30a from the multi-way valve 29a.
  • the first line 30 has lines 18 and 18a branching off to the pressure spaces 17.
  • the second line 30a has a branching line 31 which leads into a space 33 between the pistons 10 and 11 and supports a movement of the pistons into a working position A, i.e. the pistons are moved in the effective direction of the spring 14.
  • the recess in the connecting rib in the adapter 3 (Fig. 3) between the two bores 25 is designed so that it enables a pre-fixing during the "coupling process" as a counterpart to the stiffening profile on the bucket 2.

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)
  • Operation Control Of Excavators (AREA)
  • Shovels (AREA)
  • Lubricants (AREA)
  • Manipulator (AREA)
EP90122462A 1990-03-30 1990-11-26 Dispositif d'accouplement rapide pour excavateur Expired - Lifetime EP0448788B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4010224A DE4010224C2 (de) 1990-03-30 1990-03-30 Schnellwechselvorrichtung
DE4010224 1990-03-30

Publications (2)

Publication Number Publication Date
EP0448788A1 true EP0448788A1 (fr) 1991-10-02
EP0448788B1 EP0448788B1 (fr) 1994-11-09

Family

ID=6403398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122462A Expired - Lifetime EP0448788B1 (fr) 1990-03-30 1990-11-26 Dispositif d'accouplement rapide pour excavateur

Country Status (6)

Country Link
US (1) US5125788A (fr)
EP (1) EP0448788B1 (fr)
JP (1) JPH04222724A (fr)
AT (1) ATE114010T1 (fr)
DE (2) DE4010224C2 (fr)
NO (1) NO302249B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615023A1 (fr) * 1993-03-10 1994-09-14 Jean-Marie Gérard René Koehl Dispositif d'assemblage en rotation d'un bras ou analogue avec et entre deux branches d'une pièce en forme de fourche
EP1057941A3 (fr) * 1999-05-11 2001-01-03 Daemo Engineering Co., Ltd. Agencement d'accouplement pour fixer de maniere liberable un dispositif d'excavation a une excavatrice
DE19963691C2 (de) * 1999-03-02 2003-02-27 Liebherr Hydraulikbagger Kupplung zum pendelnden Anhängen eines Werkzeugs an den Stiel eines Baggers oder eine andere Handhabungseinrichtung
EP1672126A3 (fr) * 2004-12-14 2007-06-06 PMI Padana Macchine Industriali S.p.A. Dispositif hydraulique et procédé pour l'insertion et pour l'extraction de broches dans des flèches jointes de machines de construction.
FR2900170A1 (fr) * 2006-04-21 2007-10-26 Innovation Equipement Sarl Dispositif d'accouplement hydraulique d'un godet au bout d'un bras de pelleteuse par verrouillage, deverrouillage lateral
FR3019197A1 (fr) * 2014-03-26 2015-10-02 Morin Systeme d’engagement d’un ensemble d’attache rapide
CN115262670A (zh) * 2022-07-14 2022-11-01 宁波吉威熔模铸造有限公司 一种便于装配的工程机械铲斗连接组件

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223734C2 (de) * 1992-07-18 1996-04-18 Orenstein & Koppel Ag Schnellwechselvorrichtung
US5486084A (en) * 1993-06-07 1996-01-23 Raymond F. Pitman Multiple purpose material handling and working apparatus
DE4408386C2 (de) * 1994-03-12 1996-07-04 Orenstein & Koppel Ag Hydraulisch betätigte Verriegelungsvorrichtung für Schnellwechsler an Bau- und Arbeitsmaschinen
DE4417401A1 (de) * 1994-05-18 1995-11-30 Thomas Dipl Ing Ostermeyer Geräteträger
US5634735A (en) * 1995-06-07 1997-06-03 Wain-Roy, Inc. Tool coupler
SE9701887D0 (sv) 1997-05-21 1997-05-21 Accima Ab Anordning för lösbar sammankoppling av ett arbetsredskap och en grävmaskins manöverarm
DE19806057C2 (de) * 1998-02-13 2002-11-28 Franz Wimmer Baumaschinenadapter
NZ519487A (en) * 1999-05-15 2004-06-25 Ward Attachments Ltd A Connection apparatus
US7975944B2 (en) * 1999-10-15 2011-07-12 John R. Ramun Modular system for connecting attachments to a construction machine
US6994284B1 (en) * 1999-10-15 2006-02-07 Ramun John R Multiple tool attachment system
US6776571B2 (en) * 2000-10-12 2004-08-17 James M. Lemieux Fork attachment for backhoe
KR100430064B1 (ko) * 2001-05-18 2004-05-03 한국기계연구원 굴삭기용 퀵 커플러
JP2005504198A (ja) * 2001-09-26 2005-02-10 ハンウー ティーエヌシー コーポレーション 重機用アタッチメントカップリング装置
DE20215843U1 (de) 2002-10-15 2003-01-16 Rammax Maschinenbau GmbH, 72555 Metzingen Bodenverdichtungsvorrichtung
JP4867371B2 (ja) * 2006-02-01 2012-02-01 コベルコ建機株式会社 ピン連結装置
US7690880B2 (en) * 2006-04-25 2010-04-06 Clark Equipment Company Locking device for hydraulic attachment interface
US7984575B2 (en) * 2007-07-05 2011-07-26 Caterpillar Inc. Quick coupler assembly
JP4912280B2 (ja) * 2007-11-21 2012-04-11 株式会社室戸鉄工所 アタッチメントカプラ
CA2651295A1 (fr) * 2009-01-27 2010-07-27 Nye Manufacturing Ltd. Dispositif d'accouplement permettant de raccorder un godet ou un outil a une fleche
CA2829379A1 (fr) 2011-03-10 2012-09-13 Clark Equipment Company Systeme de couplage d'outil pour machine electrique
US8974137B2 (en) 2011-12-22 2015-03-10 Caterpillar Inc. Quick coupler
US9217235B2 (en) 2012-05-30 2015-12-22 Caterpillar Inc. Tool coupler system having multiple pressure sources
US8684623B2 (en) 2012-05-30 2014-04-01 Caterpillar Inc. Tool coupler having anti-release mechanism
US8869437B2 (en) 2012-05-30 2014-10-28 Caterpillar Inc. Quick coupler
AT513332A1 (de) * 2012-08-31 2014-03-15 Wacker Neuson Linz Gmbh Vorrichtung zum Kuppeln von einem Trägergerät und einem Werkzeug zugeordneten Medienleitungen
US9228314B2 (en) 2013-05-08 2016-01-05 Caterpillar Inc. Quick coupler hydraulic control system
GB2544746A (en) * 2015-11-24 2017-05-31 Caterpillar Work Tools Bv Apparatus and method for assembling work tool to a machine
US11805738B2 (en) 2020-04-24 2023-11-07 Paul E. Schmelz Sod roller terminal attachment for excavator
US11952738B2 (en) 2020-09-18 2024-04-09 Great Plains Manufacturing, Inc. Attachment coupler
KR102527573B1 (ko) * 2021-01-29 2023-05-11 주식회사 이건 굴삭기용 코어 드릴 시스템
US12449000B2 (en) * 2021-11-19 2025-10-21 Caterpillar Inc. Compact actuated shear pin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2304726A1 (fr) * 1975-03-18 1976-10-15 Liebherr Hydraulikbagger Appareil hydraulique de travaux publics
GB2132584A (en) * 1982-12-24 1984-07-11 Dobson Park Ind Releasable connection device
EP0273828A1 (fr) * 1986-12-26 1988-07-06 Ardennes Equipment S.A. Dispositif d'attache rapide pour équipements d'engins de génie civil et de manutention
DE9001617U1 (de) * 1990-02-12 1990-04-19 Fritzel, Walter, 6366 Wölfersheim Löffelbagger

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US3033171A (en) * 1960-09-07 1962-05-08 Sperry Rand Corp Interlocking means for hydraulic servomotor systems
DE1784323A1 (de) * 1968-07-27 1971-08-19 Carl Kaelble Gmbh Motoren U Ma Schnellwechselvorrichtung fuer Schaufellader
GB1289602A (fr) * 1970-04-27 1972-09-20
US3934738A (en) * 1974-04-01 1976-01-27 Wain-Roy, Inc. Tool connecting
SE399866B (sv) * 1975-09-12 1978-03-06 Renholmens Mek Verkstad Ab Snabbkopplingsanordning for automatisk hopkoppling av ett av en lastmaskin eller annan redskapsberare uppburet redskapsfeste med ett arbetsredskap
US4373852A (en) * 1981-07-06 1983-02-15 J. I. Case Company Quick coupling and release mechanism for buckets
DE8237194U1 (de) * 1982-01-13 1984-02-02 Kramer-Werke GmbH, 7770 Überlingen Schaufellader mit einer ladeschaufelanordnung fuer die wahlweise verschwenkung vorwaerts oder seitwaerts
SE458693B (sv) * 1982-11-19 1989-04-24 Lidkoeping Svets & Maskinprod Anordning foer loesbar sammankoppling av ett arbetsredskap och en graevmaskins manoeverarm
DE8420678U1 (de) * 1984-07-11 1984-10-11 Krupp Mak Maschinenbau Gmbh, 2300 Kiel Verriegelungs- und absetzvorrichtung fuer arbeitsgeraete
DE3808313A1 (de) * 1988-03-12 1989-09-28 Kramer Werke Gmbh Arbeitsfahrzeug, insbesondere schaufellader

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2304726A1 (fr) * 1975-03-18 1976-10-15 Liebherr Hydraulikbagger Appareil hydraulique de travaux publics
GB2132584A (en) * 1982-12-24 1984-07-11 Dobson Park Ind Releasable connection device
EP0273828A1 (fr) * 1986-12-26 1988-07-06 Ardennes Equipment S.A. Dispositif d'attache rapide pour équipements d'engins de génie civil et de manutention
DE9001617U1 (de) * 1990-02-12 1990-04-19 Fritzel, Walter, 6366 Wölfersheim Löffelbagger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615023A1 (fr) * 1993-03-10 1994-09-14 Jean-Marie Gérard René Koehl Dispositif d'assemblage en rotation d'un bras ou analogue avec et entre deux branches d'une pièce en forme de fourche
FR2702526A1 (fr) * 1993-03-10 1994-09-16 Koehl Jean Marie Gerard Rene Dispositif d'assemblage en rotation d'un bras ou analogue avec et entre deux branches d'une pièce en forme de fourche.
DE19963691C2 (de) * 1999-03-02 2003-02-27 Liebherr Hydraulikbagger Kupplung zum pendelnden Anhängen eines Werkzeugs an den Stiel eines Baggers oder eine andere Handhabungseinrichtung
EP1057941A3 (fr) * 1999-05-11 2001-01-03 Daemo Engineering Co., Ltd. Agencement d'accouplement pour fixer de maniere liberable un dispositif d'excavation a une excavatrice
EP1672126A3 (fr) * 2004-12-14 2007-06-06 PMI Padana Macchine Industriali S.p.A. Dispositif hydraulique et procédé pour l'insertion et pour l'extraction de broches dans des flèches jointes de machines de construction.
FR2900170A1 (fr) * 2006-04-21 2007-10-26 Innovation Equipement Sarl Dispositif d'accouplement hydraulique d'un godet au bout d'un bras de pelleteuse par verrouillage, deverrouillage lateral
FR3019197A1 (fr) * 2014-03-26 2015-10-02 Morin Systeme d’engagement d’un ensemble d’attache rapide
CN115262670A (zh) * 2022-07-14 2022-11-01 宁波吉威熔模铸造有限公司 一种便于装配的工程机械铲斗连接组件

Also Published As

Publication number Publication date
EP0448788B1 (fr) 1994-11-09
JPH04222724A (ja) 1992-08-12
ATE114010T1 (de) 1994-11-15
NO302249B1 (no) 1998-02-09
DE4010224C2 (de) 1994-05-19
DE59007696D1 (de) 1994-12-15
NO911268D0 (no) 1991-03-27
US5125788A (en) 1992-06-30
DE4010224A1 (de) 1991-10-02
NO911268L (no) 1991-10-01

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