EP3875692B1 - 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
EP3875692B1
EP3875692B1 EP21157045.2A EP21157045A EP3875692B1 EP 3875692 B1 EP3875692 B1 EP 3875692B1 EP 21157045 A EP21157045 A EP 21157045A EP 3875692 B1 EP3875692 B1 EP 3875692B1
Authority
EP
European Patent Office
Prior art keywords
quick coupler
bearing
bearing bushing
opposing
lateral flanks
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
EP21157045.2A
Other languages
German (de)
English (en)
Other versions
EP3875692A1 (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
    • 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
    • E02F3/28—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
    • E02F3/96—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 easy and convenient changing of different attachments on construction machinery.
  • a quick coupler e.g. buckets, grabs, shears, compactors, magnets, hydraulic hammers or other attachments can be coupled or uncoupled in a few seconds and with a high safety standard from a driver's cab e.g. on a boom of an excavator.
  • a generic quick coupler is known. This has a mountable on a boom arm of an excavator carrier with 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 walls of the carrier. The through openings are designed as oblong holes.
  • the bearing bushes have an outer contour adapted to the shape of the elongated holes and are arranged in the through-openings secured against rotation by this outer contour.
  • the quick coupler can be adapted to different distances between the fastening bolts and to fastening bolts with different diameters by different arrangement of the bores within the bearing bushes and by different diameters of the bores.
  • At least two opposite first bearing bushes can be inserted in different angular positions into first opposite through-openings in the side walls by rotation about an axis offset from a central axis of a receiving opening of the bearing bush and have an outer contour for an engagement in a corresponding inner contour on the through-openings that is secured against twisting.
  • Opposite second bearing bushes are arranged in second through-openings in the side walls designed as a slot and are secured against displacement by a form-fitting connection.
  • the object of the invention is to create a quick coupler of the type mentioned with an alternative form of form-fitting connection.
  • additional adjustment options can be achieved in that the opposite second bearing bushes are secured against displacement by a positive connection formed by arcuate depressions on the top and bottom of the second through-opening and corresponding arcuate elevations on the second bearing bush.
  • the second bearing bushes can also be moved into different positions for adjustment.
  • the outer contour of the first bearing bushes and the inner contour of the first through openings are designed as a polygonal profile.
  • the first and second bearing bushes are then secured against rotation in the desired positions. This achieves an improved possibility of adjustment while still positioning it more precisely and securely.
  • the outer contour can expediently be arranged on an engagement part of the bearing bush which engages in the first through-opening.
  • the first bearing bush can have a fastening flange provided with threaded bores for fastening to the side wall.
  • the second bearing bushes can be fastened to the side walls via a retaining washer.
  • the retaining disk can be arranged, for example, on the outside of the side wall and screwed to the second bearing bush using screws.
  • a quick coupler 1 is shown for easy and convenient changing of different attachments on construction machines, in particular excavators.
  • a quick coupler 1 for example, swivel buckets, grippers, shears, magnets, compactors, 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 another attachment of an excavator or other construction vehicle .
  • the quick coupler 1 contains a carrier designed 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 boom arm of an excavator or other implement using the connecting bolts 8 .
  • the base part 2 which is designed in cross section as an inverted U-profile, has first receptacles 9, which are open to the rear on one side, for receiving and holding a first bolt-shaped coupling element, and on the other side, second receptacles 10, which are open downwards, for receiving and holding a second bolt-shaped coupling element .
  • the bolt-shaped coupling elements can be arranged, for example, on an attachment or on an adapter that can be attached to the attachment.
  • the quick coupler 1 contains two spaced-apart first receptacles 9 for the first coupling element on the back of the base part 4 and two spaced-apart receptacles 10 for the second coupling element on the front.
  • the first receptacles 9, which are open to the rear, are designed in the form of forks or claws.
  • the downwardly open second receptacles 10 are displaceably arranged in the guide bores 12 in the base part 2 bolt-shaped locking elements 13 on the Bottom closed, so that the second bolt-shaped coupling element of the bolt-shaped locking elements 13 is reached and held.
  • 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 a boom of an excavator, is first moved in such a way that the first coupling element, which is arranged on an adapter or directly on the attachment, fits into the claw-shaped or fork-shaped receptacles 9 one side of the quick coupler 1 is retracted. Then, with the locking elements 13 still pulled back, the quick coupler 1 is pivoted about the first bolt-shaped coupling element in such a way that the second coupling element on the adapter or attachment comes to rest on the contact surfaces 11 of the receptacles 10, which are open at the bottom, on the other side of the quick coupler 1.
  • the locking elements 13, which are movably arranged in the guide bores 12 in the base part 2 of the carrier, can be extended hydraulically, so that the second bolt-shaped coupling element is gripped under by the two bolt-shaped locking elements 13 on the quick coupler 1 and the attachment is thus held on the quick coupler 1.
  • two opposite rear through-openings 4 for accommodating first bearing bushes 6 and two opposite front through-openings 5 for accommodating second bearing bushes 7 are provided in the two side walls 3 of the carrier.
  • the first bearing bushes 6 arranged at the rear have an engagement part 14 for engaging in the rear through opening 4 and a fastening flange 16 provided with threaded bores 15 .
  • the engagement part 14 of the rear bearing bushing 6 has an outer contour 17 embodied here as an external hexagonal profile for form-fitting engagement with a corresponding inner contour 18 of the rear through-opening 5 embodied here as an internal hexagonal profile.
  • the first bearing bush 6 there is a receiving bore 20 which is eccentric to the axis 19 .
  • the central axis 21 of the receiving bore 20 is offset from the axis 19, so that the position of the receiving bore 20 relative to the side wall 3 can be changed by rotating the first bearing bush 6 .
  • a plurality of through-holes 22 for screws 23 aligned with the threaded holes 15 in the fastening flange 16 are arranged around the through-opening 5 in the side walls 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 by means of 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 wall 3 can also be made, for example, by an external and internal serration, by a splined shaft and splined hub profile, or by an external and internal polygonal profile.
  • the second passage openings 5 arranged at the front in the side panels 3 are designed as oblong holes with arcuate depressions 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 positive engagement in the front through-opening 5 .
  • the engagement area 26 has arcuate elevations 27 on its upper and lower sides that correspond to the depressions 24 . Due to the configuration of the front through-opening 5 and the engagement area 26, the bearing bushing 7 can be inserted within the through-opening 5 designed as an elongated hole at various points of the side wall 3 and is secured there against displacement. Thus, the position of the receiving bore 28 relative to the side panel 3 can be easily changed.
  • the front bearing bush 7 is attached to the side panel 3 by means of an in figure 1 Retaining disk 29 shown, which is arranged on the outside of the side wall 3 and is screwed to the bearing bush 7 via screws 30 .
  • 29 through holes 31 and in the bearing bush 7 corresponding threaded holes 32 are provided in the retaining disc.
  • the fastening bolts 8 can be fixed to the side walls 3 via fastening elements 33 and threaded bores 34 in the side walls 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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Component Parts Of Construction Machinery (AREA)

Claims (7)

  1. Attache rapide (1) pour le changement d'accessoires sur un engin de chantier, qui contient un corps de base (2) et des joues latérales (3) parallèles avec des premier et deuxième coussinets (6, 7) opposés pour la réception de boulons de fixation (8), dans laquelle au moins deux premiers coussinets (6) opposés peuvent être insérés par rotation autour d'un axe (19) décalé d'un axe central (21) d'une ouverture de réception (20) du premier coussinet (6) dans différentes positions angulaires dans des premières ouvertures de passage (4) opposées dans les joues latérales (3) et présentent un contour extérieur (17) pour un emboîtement empêché de tourner dans un contour intérieur (18) correspondant sur les ouvertures de passage (4) et dans laquelle les deuxièmes coussinets (7) opposés sont disposés dans des deuxièmes ouvertures de passage (5) réalisées sous la forme d'un trou oblong dans les joues latérales (3) et empêchés de se déplacer par l'intermédiaire d'une liaison par coopération de formes (24, 27), caractérisée en ce que la liaison par coopération de formes (24, 27) est formée par des évidements arqués (24) sur la face supérieure et inférieure de la deuxième ouverture de passage (5) et des élévations arquées (27) correspondantes sur le deuxième coussinet (7) et que le contour extérieur (17) sur les premiers coussinets (6) et le contour intérieur (18) sur les premières ouvertures de passage (4) sont réalisés sous la forme d'un profil polygonal.
  2. Attache rapide (1) selon la revendication 1, caractérisée en ce que le contour extérieur (17) est disposé sur une partie d'emboîtement (14) du premier coussinet (6) s'insérant dans la première ouverture de passage (4).
  3. Attache rapide (1) selon la revendication 1 ou 2, caractérisée en ce que le premier coussinet (6) contient une bride de fixation (16) pourvue de trous taraudés (15) pour la fixation sur la joue latérale (3).
  4. Attache rapide (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les élévations arquées (27) sont disposées sur une partie d'emboîtement (26) du deuxième coussinet (7) s'insérant dans la deuxième ouverture de passage (5).
  5. Attache rapide (1) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les deuxièmes coussinets (7) sont fixés sur les joues latérales (3) par l'intermédiaire d'une rondelle de retenue (29).
  6. Attache rapide (1) selon la revendication 5, caractérisée en ce que la rondelle de retenue (29) est disposée sur la face extérieure de la joue latérale (3) et vissée au deuxième coussinet (7) par l'intermédiaire de vis (30).
  7. Attache rapide (1) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que les boulons de fixation (8) sont fixés sur les joues latérales (3) par l'intermédiaire d'éléments de fixation (33).
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 EP3875692A1 (fr) 2021-09-08
EP3875692B1 true 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) US20210270005A1 (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)

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
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

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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
JP2907688B2 (ja) * 1993-07-09 1999-06-21 株式会社クボタ バックホウの枢支部構造
US5975604A (en) * 1997-05-27 1999-11-02 Wolin; Robert H. Grapple with universal attachment device
AU8602798A (en) 1997-07-30 1999-02-22 Allied Construction Products, Inc. Implement mounting system
US5927665A (en) * 1998-07-02 1999-07-27 Allied Construction Products, Inc. Implement mounting system
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
MXPA04006847A (es) 2002-01-14 2004-12-08 Kent Demolition Inc Unidad conectora para montar un implemento en un montacargas.
WO2011003151A1 (fr) * 2009-07-09 2011-01-13 Equipment Component Holdings 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

Also Published As

Publication number Publication date
DK3875692T3 (da) 2023-08-07
AU2021200771A1 (en) 2021-09-16
PL3875692T3 (pl) 2023-08-28
US20210270005A1 (en) 2021-09-02
JP2021139284A (ja) 2021-09-16
AU2021200771B2 (en) 2024-05-16
CN113338373A (zh) 2021-09-03
HUE062947T2 (hu) 2023-12-28
CA3109025A1 (fr) 2021-09-02
EP3875692A1 (fr) 2021-09-08
ES2954947T3 (es) 2023-11-27
CN113338373B (zh) 2023-04-25
DE102020105460A1 (de) 2021-09-02
FI3875692T3 (en) 2023-08-02

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