EP3591122A1 - Système de changement rapide - Google Patents

Système de changement rapide Download PDF

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Publication number
EP3591122A1
EP3591122A1 EP18199339.5A EP18199339A EP3591122A1 EP 3591122 A1 EP3591122 A1 EP 3591122A1 EP 18199339 A EP18199339 A EP 18199339A EP 3591122 A1 EP3591122 A1 EP 3591122A1
Authority
EP
European Patent Office
Prior art keywords
quick coupler
coupling
quick
locking
lever
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
EP18199339.5A
Other languages
German (de)
English (en)
Other versions
EP3591122B1 (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
Priority to PL18199339T priority Critical patent/PL3591122T3/pl
Priority to AU2019203317A priority patent/AU2019203317A1/en
Priority to CA3044618A priority patent/CA3044618A1/fr
Priority to JP2019107804A priority patent/JP7306685B2/ja
Priority to US16/451,190 priority patent/US11396733B2/en
Publication of EP3591122A1 publication Critical patent/EP3591122A1/fr
Application granted granted Critical
Publication of EP3591122B1 publication Critical patent/EP3591122B1/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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • 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
    • 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
    • E02F3/3627—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
    • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
    • 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 changer according to the preamble of claim 1.
  • the invention also relates to a quick change system with such a quick changer and an associated adapter.
  • Such quick couplers are used to easily and conveniently change different attachments on construction machines.
  • a quick coupler e.g. Swivel buckets, grabs, scissors, compressors, magnets, hydraulic hammers or other attachments in a few seconds and with a high level of safety from a driver's cab e.g. be coupled or uncoupled to a boom of an excavator.
  • a generic quick coupler is known.
  • This contains a carrier which has on one side first receptacles for holding a first coupling element provided on an attachment and on the other side has second receptacles with a locking element movable between a release position and a locking position for releasably holding a second coupling element.
  • the locking element is designed as a linearly movable hook slide that can be moved between an open and a closed position.
  • An indicator rod is attached to the hook slide, which is drawn into a housing in the closed position of the hook slide and protrudes relative to the housing in the open position of the hook slide.
  • the object of the invention is to provide a quick changer of the type mentioned and a quick change system with such a quick changer, which enable improved control of a correct locking.
  • the mechanical display device has a device for indicating a lack of engagement of the second coupling element on the second receptacles. Correct locking is therefore only indicated if the second coupling element is also in its position provided for correct locking. For the monitoring and display of a correct locking, not only the position of the at least one locking element, but also the position of the second coupling element is included. This can improve control and increase security.
  • the device for indicating the lack of engagement of the second coupling element on the second receptacles can be a display element movable between a locking position and an unlocking position and a coupling gear for moving the display element into the locking position when the at least one locking element moves into the coupling position and for moving the display element backwards into the unlocking position when the at least one locking element moves beyond the coupling position.
  • the coupling gear expediently contains a control lever which can be pivoted on the support about an articulation and which is connected to the display element via an articulated rod and a linearly movable rod.
  • the control lever preferably has a control cam and a recess.
  • the linearly movable rod is expediently guided in a guide and resiliently biased.
  • the control lever can be rotated by a cylinder for displacing the at least one locking element via an actuating device.
  • the actuating device can be a lever with a ball bearing.
  • the display element can be a flap which is pivotably arranged on a housing and which can be moved between a raised locking position and a lowered position via a linearly displaceable rod Unlocking position is movable.
  • the display element can also be a bolt movable between an in and out position or another suitable display element.
  • the coupling gear can contain a slide which can be displaced at right angles to the display element and connected to it via a toothed drive, and an actuating element which is detachably connected to the slide.
  • the carriage can e.g. be releasably connected to the actuating element via a pivotable control lever.
  • the toothed drive can comprise a lever which can be rotated by a gearwheel, an idler gear meshing with the gearwheel and a toothed rack meshing with the idler gear on the slide.
  • the invention also relates to a quick-change system with a quick-changer described above and an adapter that can be coupled to the quick-changer.
  • Figure 1 shows a quick-change system consisting of a quick changer 1 and an associated adapter 2 for simple and convenient changing of different attachments on construction machines, in particular excavators.
  • a quick couplers for example, swivel buckets, grapples, scissors, magnets, compressors, hydraulic hammers or other mechanical or hydraulic attachments can be easily and conveniently connected or disconnected from a driver's cab to a boom or other attachment part of an excavator or other construction vehicle.
  • the adapter 2 which can be fastened to an attachment, contains a base plate 3 and two mutually parallel side cheeks 4, between which a first bolt-shaped coupling element 5 and a second bolt-shaped coupling element 6 spaced apart from it at a predetermined distance are arranged for releasable connection to the quick coupler 1.
  • the two bolt-shaped coupling elements 5 and 6 can be inserted into corresponding bores in the side cheeks 4 and fixed there.
  • the one in Figure 2 Quick changer 1 shown in perspective contains a support 7 designed as a welded or cast part, the first receptacles 8 open on one side for receiving and holding the first bolt-shaped coupling element 5 and on the other side open second receptacles 9 with an in Figure 1 Locking element 10 shown for receiving and holding the second bolt-shaped coupling element 6.
  • the quick coupler 1 contains on one side of the carrier 7 two spaced-apart receptacles 8 for the first coupling element 5 and on the other side two receptacles 9 for the second coupling element 6.
  • the first receptacles 8 open towards the front are clawed or fork-shaped.
  • the carrier 9 contains on its upper side two mutually parallel side parts 12, in which through openings 13 are provided for fastening bolts, not shown, for fastening the quick coupler 1 to a boom of an excavator or a connecting part of another construction vehicle.
  • the quick coupler 1 also contains two locking elements 10 designed as locking bolts, which according to FIG Figure 1 Slidably guided in guide bores 14 of the carrier 7 and together hydraulically by a cylinder 15 which is H-shaped in plan view between an in Figure 5 Retracted release position shown for releasing or coupling an attachment and a in Figure 7 locking position shown are movable.
  • a cylinder 15 which is H-shaped in plan view between an in Figure 5 Retracted release position shown for releasing or coupling an attachment and a in Figure 7 locking position shown are movable.
  • the downwardly open second receptacles 9 are closed on the underside by the locking elements 10 arranged in the guide bores 14, so that the second bolt-shaped coupling element 6 is gripped by the locking elements 10.
  • the quick coupler 1 which is generally arranged on a boom of an excavator, is first moved so that a e.g. first coupling element 5 arranged on an adapter or on the attachment is inserted into the claw-shaped or fork-shaped receptacles 8 on one side of the quick coupler 1. Then the quick coupler 1 with the locking elements 10 still retracted is pivoted about the first bolt-shaped coupling element 5 in such a way that the second coupling element 6 on the adapter or attachment comes into contact with the contact surfaces 11 of the receptacles 9 which are open at the bottom on the other side of the quick coupler 1.
  • the locking elements 10 which are displaceably arranged in the guide bores 14 in the carrier 7 of the quick changer 1 can be extended hydraulically, so that the second bolt-shaped coupling element 6 is gripped by the two locking elements 10 on the quick changer 1 and the attachment is thus held on the quick changer 1.
  • a mechanical display device 16 for checking correct locking is also provided on the quick coupler 1. How special from the Figures 3 and 4 shows, the mechanical display device 16 has a device for signaling a lack of engagement of the second coupling element 6 on the second receptacles 9.
  • the device for signaling a lack of engagement of the second coupling element 6 on the second receptacles 9 contains a display element 17 movable between a locking position and an unlocking position and a coupling gear, by means of which the display element 17 first moves into the locking position when the locking elements 10 move into the coupling position becomes. However, if the locking elements 10 move beyond the coupling position due to an improperly engaging coupling element 5, the display element 17 is moved back into the unlocking position via the coupling gear. This can signal to the operator that, despite the actuation of the locking elements 10, no proper locking has taken place.
  • the display element 17 is a flap which is pivotably arranged on a housing 18 and which is moved by a linearly displaceable rod 19 via a pin 20 guided inside the housing 18 between a flap Figure 1 shown raised locking position and one in Figure 5 shown lowered unlocking position is movable.
  • the in Figure 1 locking position shown protrudes the bolt 20 relative to the housing 19 and lifts the flap-shaped display element 17.
  • the unlocked position however, the bolt 20 is drawn into the housing 18 and the flap-shaped display element 17 is closed.
  • the display of the locking and unlocking position can also be done only by the bolt 20 without a flap.
  • the coupling gear designed for the connection between the cylinder 15 and the display element 17 contains a control lever 22 which is arranged on the support 7 so as to be pivotable about a joint 21 and which is connected to the linearly movable rod 19 via a joint rod 23.
  • the control lever 22, which can be pivoted about the joint 21, has a control cam 24 and a depression 25 on one arm.
  • one end of the joint rod 23 is articulated.
  • the other end of the articulated rod 23 is articulated to the linearly movable rod 19 for moving the display element 17.
  • the linearly movable rod 19 is guided displaceably via a guide 26 fastened to the cylinder 15 and is inserted into the spring by a spring arranged inside a bushing 27 Figure 3 shown unlocked position pressed.
  • the guide 26 is designed in the embodiment shown as a double angled sheet metal part.
  • the two locking elements 10 are in a retracted release position. In this position it is Ball bearing 29 according to Figure 6 spaced from the control cam 24 of the control lever 22 and the control lever 22 is pressed by the spring-loaded rod 19 via the articulated rod 23 into the starting position shown.
  • the rod 19 is in a retracted position, as a result of which the flap-shaped display element 17 is in a downward unlocked position.
  • the quick coupler 1 can be lowered on the front side, so that the second coupling element 6 comes to rest on the lower contact surface 11 of the receptacles 9.
  • FIG. 13 to 18 A further exemplary embodiment of a quick-change system with a quick-changer 1 and an associated adapter 2 is shown.
  • a mechanical display device 16 is provided on the quick coupler 1 for checking that it is properly locked.
  • the mechanical display device 16 used in this embodiment contains a display element 17 which is designed here as a bolt and which is arranged displaceably within a housing 18 between a locking position and an unlocking position.
  • the bolt-shaped locking element 17 protrudes laterally in relation to the housing 18, whereas the locking element 17 in one in the Figures 14 and 18 Unlocked position shown is drawn into the housing 18.
  • the display element 17 is also first moved into the locking position in this embodiment via a coupling gear. If, however, the locking elements 10 move due to an improperly engaging coupling element 5 via the coupling position move out, the display element 17 is moved back here via the coupling gear back into the unlocked position. This can signal to the operator that, despite the actuation of the locking elements 10, no proper locking has taken place.
  • the pin-shaped display element 17, which is displaceably guided within the housing 18, can be moved by a lever 33 which is arranged within the housing 18 so as to be pivotable about an axis of rotation 32.
  • the lever 33 which can be pivoted about the axis of rotation 32, is articulated with its lever arm 34 via a cross pin 35 to the bolt-shaped display element 17.
  • the rotation of the lever 33 takes place via a gearwheel 36 which is firmly connected to the latter and which engages via an intermediate gear 37 with a toothed rack 38 on a slide 39 which can be displaced within the housing 18 at right angles to the display element 17.
  • a two-armed control lever 42 which can be pivoted about an axis 41 is also arranged on the slide 39.
  • the slide 39 is detachably connected to the rod-shaped actuating element 40 via the control lever 42 which can be rotated about the axis 41.
  • the control lever 42 has on its one lever arm a nose 43 for engaging in a groove 44 of the actuating element 40 and on its other end a control bevel 45 for engaging an oblique control surface 46 on the housing 18.
  • the control lever 42 is acted upon by a spring (not shown here) in such a way that the nose 43 is pressed in the direction of the actuating rod 40.
  • the actuating rod 40 is connected to the cylinder 15 via a linkage 47 and a holder 48.
  • the display device 16 works as follows: In the in the Figures 13 and 14 Change position shown, the cylinder 15 takes the in Figure 13 shown position and the locking elements 10 are in a retracted release position.
  • the rod-shaped actuating element 40 which is connected to the cylinder 15 via a linkage 47 and a holder 48, and the slide 39 coupled to the latter via the control lever 42 are located in one in Figure 14 shown starting position. In this initial position of the slide 39, the display element 17 connected to the slide 39 via the rack 38, the intermediate gear 37, the gear 36 and the lever 33 is drawn into the housing 18. This signals to the operator that the quick coupler 1 is in a change position.
  • the quick coupler 1 can be coupled at its rear end to the first coupling element 5 of the adapter 2 via the first receptacles 8 and then lowered on the front side, so that the second coupling element 6 can be placed against the lower contact surface 11 of the receptacles 9 arrives.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Shovels (AREA)
EP18199339.5A 2018-07-02 2018-10-09 Système de changement rapide Active EP3591122B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL18199339T PL3591122T3 (pl) 2018-07-02 2018-10-09 Szybkozłącze
AU2019203317A AU2019203317A1 (en) 2018-07-02 2019-05-13 Quick-Change Coupler Device
CA3044618A CA3044618A1 (fr) 2018-07-02 2019-05-29 Dispositif de couplage de changement rapide
JP2019107804A JP7306685B2 (ja) 2018-07-02 2019-06-10 迅速交換結合装置
US16/451,190 US11396733B2 (en) 2018-07-02 2019-06-25 Quick-change coupler device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018115949.8A DE102018115949A1 (de) 2018-07-02 2018-07-02 Schnellwechsler

Publications (2)

Publication Number Publication Date
EP3591122A1 true EP3591122A1 (fr) 2020-01-08
EP3591122B1 EP3591122B1 (fr) 2021-12-08

Family

ID=63832201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18199339.5A Active EP3591122B1 (fr) 2018-07-02 2018-10-09 Système de changement rapide

Country Status (10)

Country Link
US (1) US11396733B2 (fr)
EP (1) EP3591122B1 (fr)
JP (1) JP7306685B2 (fr)
AU (1) AU2019203317A1 (fr)
CA (1) CA3044618A1 (fr)
DE (1) DE102018115949A1 (fr)
DK (1) DK3591122T3 (fr)
ES (1) ES2902882T3 (fr)
HU (1) HUE056969T2 (fr)
PL (1) PL3591122T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11053660B2 (en) * 2019-06-17 2021-07-06 Caterpillar Inc. Coupling assembly and method of hydraulically coupling to a tool
DE102020115197A1 (de) * 2020-06-08 2021-12-09 OilQuick Deutschland KG Adapter für ein Schnellwechselsystem und Schnellwechselsystem mit einem derartigen Adapter
USD967871S1 (en) * 2020-06-08 2022-10-25 OilQuick Deutschland KG Excavator coupler
KR102304293B1 (ko) * 2020-10-27 2021-09-23 대모 엔지니어링 주식회사 퀵 체인지 디바이스

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6379075B1 (en) 2000-01-18 2002-04-30 Gh Hensley Industries, Inc. Quick coupler apparatus
DE202006018263U1 (de) * 2005-12-23 2007-02-08 Perwein Baumaschinen-Systeme Gmbh Kupplungsvorrichtung zum Befestigen eines Arbeitswerkzeugs an einem Ausleger
DE102015009491A1 (de) * 2014-08-11 2016-02-11 Caterpillar Inc. (n.d.Ges.d. Staates Delaware) Bestätigungsanzeiger für Kopplungsvorrichtungen
WO2016153360A1 (fr) * 2015-03-25 2016-09-29 Wedgelock Equipment Limited Indicateur visuel pour un coupleur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5692855A (en) * 1994-06-21 1997-12-02 Farmers' Factory Co. Automatic quick-connect coupler for implements
US6699001B2 (en) * 2000-12-11 2004-03-02 Jrb Company, Inc. Coupler with improved pin lock
GB0720413D0 (en) * 2007-10-18 2007-11-28 Monaghan Conor A Coupler
AU2009201972A1 (en) * 2008-04-28 2009-11-19 Atlas Heavy Engineering Pty Ltd Remotely Operated Locking Means
SE534020C2 (sv) * 2009-08-11 2011-04-05 Oilquick Ab Redskapsfäste med hydraulkontrollerad låsfunktion
GB201116345D0 (en) * 2011-09-21 2011-11-02 Hill Ian Hydraulic ram for an excavator coupler
US8869437B2 (en) * 2012-05-30 2014-10-28 Caterpillar Inc. Quick coupler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6379075B1 (en) 2000-01-18 2002-04-30 Gh Hensley Industries, Inc. Quick coupler apparatus
DE202006018263U1 (de) * 2005-12-23 2007-02-08 Perwein Baumaschinen-Systeme Gmbh Kupplungsvorrichtung zum Befestigen eines Arbeitswerkzeugs an einem Ausleger
DE102015009491A1 (de) * 2014-08-11 2016-02-11 Caterpillar Inc. (n.d.Ges.d. Staates Delaware) Bestätigungsanzeiger für Kopplungsvorrichtungen
WO2016153360A1 (fr) * 2015-03-25 2016-09-29 Wedgelock Equipment Limited Indicateur visuel pour un coupleur

Also Published As

Publication number Publication date
DK3591122T3 (da) 2022-01-10
JP7306685B2 (ja) 2023-07-11
PL3591122T3 (pl) 2022-04-04
CA3044618A1 (fr) 2020-01-02
DE102018115949A1 (de) 2020-01-02
JP2020007903A (ja) 2020-01-16
US20200002913A1 (en) 2020-01-02
EP3591122B1 (fr) 2021-12-08
US11396733B2 (en) 2022-07-26
AU2019203317A1 (en) 2020-01-16
HUE056969T2 (hu) 2022-04-28
ES2902882T3 (es) 2022-03-30

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