EP3705630A1 - Système à changement rapide, adaptateur et dispositif de changement rapide - Google Patents

Système à changement rapide, adaptateur et dispositif de changement rapide Download PDF

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Publication number
EP3705630A1
EP3705630A1 EP19211221.7A EP19211221A EP3705630A1 EP 3705630 A1 EP3705630 A1 EP 3705630A1 EP 19211221 A EP19211221 A EP 19211221A EP 3705630 A1 EP3705630 A1 EP 3705630A1
Authority
EP
European Patent Office
Prior art keywords
coupling piece
adapter
piece
coupling
quick
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.)
Withdrawn
Application number
EP19211221.7A
Other languages
German (de)
English (en)
Inventor
Sebastian Schmid
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 EP3705630A1 publication Critical patent/EP3705630A1/fr
Withdrawn legal-status Critical Current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
    • E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
    • 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
    • E02F3/364—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
    • 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
    • E02F3/3686—Devices to connect tools to arms, booms or the like using adapters, i.e. additional element to mount between the coupler and the tool
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/86—Parallel contacts arranged about a common axis

Definitions

  • the invention relates to a quick-change system for automatically changing attachments on a construction machine.
  • the invention also relates to an adapter and a quick changer for such a quick-change system.
  • Such quick-change systems are used for easy and convenient changing of different attachments on excavators or other construction machines.
  • Swivel buckets, grippers, 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.
  • they contain an adapter on the attachment side and a quick coupler arranged on the construction machine, e.g.
  • Has claw-shaped first receptacles for holding a first coupling element arranged on the adapter and on the other side second receptacles with at least one locking element movable between a release position and a locking position for releasably holding a second coupling element arranged on the adapter.
  • a generic quick change system is known.
  • This has an adapter with two bolt-shaped coupling elements arranged between parallel sidecars at a predetermined distance from one another for connecting the adapter to a quick coupler.
  • the quick changer belonging to the adapter contains claw-shaped first receptacles for the first bolt-shaped coupling element on one side and has second receptacles on the other side with at least one locking element movable between a release position and a locking position for releasably holding the second coupling element.
  • Appropriate hydraulic couplings are provided on the adapter and the quick coupler to supply power to the attachments.
  • electrical plug connections may also be required, for example to supply the attachments with electrical energy or to transmit electrical signals between the attachments and the excavators or other construction machines for control purposes or the like.
  • electrical plug connections are, however, relatively sensitive and can easily be damaged, especially due to the harsh working conditions An exchange is then laborious and expensive, since the coupling elements have to be replaced as a whole.
  • the object of the invention is to create a quick-change system, an adapter and a quick-change system which enable simple and inexpensive repairs if the coupling elements are damaged.
  • the invention also relates to an adapter intended for a quick-change system, which has a support body with two coupling elements arranged at a predetermined distance from one another for connecting the adapter to a quick-change system and contains at least one first coupling piece arranged on the support body for connection to a second coupling piece arranged on the quick changer.
  • An exchangeable intermediate piece for establishing an electrical connection between the first coupling piece and the second coupling piece is arranged on the first coupling piece provided with first electrical contact elements.
  • first and second electrical contacts in addition to the first and second electrical contacts, in a further advantageous embodiment, further contacts for forming a further connection plane can also be provided on the intermediate piece.
  • At least one of the first, second or further electrical contacts of the intermediate piece can be designed as a grounding contact.
  • the ground contact can e.g. be designed by a larger board in such a way that it produces an electrical connection before the other contacts when coupling the first and second coupling pieces.
  • a sealing element designed, for example, as an O-ring, can expediently be used to seal the intermediate piece be arranged opposite the main body of the first coupling piece.
  • This sealing element not only represents a seal between the intermediate piece and the coupling piece, but can also serve to additionally hold the intermediate piece within the coupling piece.
  • an annular seal for example with an X-shaped cross section, can also be arranged. With this seal, the base body of the first coupling piece can be sealed off from the base body of the second coupling piece.
  • the intermediate piece can have, on its side facing the contact insert of the coupling piece, e.g. have positioning element designed as a flattened projection for form-fitting engagement with a counter-element adapted to the contour of the positioning element on the contact insert 19 arranged in the base body. It can thereby be ensured that the intermediate piece can only be coupled to the contact insert in a predetermined position and thus the contacts provided on the intermediate piece reach the intended contact elements in the contact insert for proper engagement.
  • the positioning element on the intermediate piece can also be designed as a groove or as a projection for engaging protruding form-fitting elements or corresponding recesses on the contact insert. Other positioning or form-fitting elements for mutual form-fitting engagement are also possible.
  • the quick coupler 2 is e.g. mountable on a boom of an excavator. It contains a carrier 9 with two parallel side parts 10, in which continuous receiving openings 11 and 12 are provided for fastening bolts (not shown) for fastening the quick coupler 2 to a boom of an excavator or a connector of another construction vehicle.
  • the quick changer 2 has claw-shaped or fork-shaped first receptacles 13 on one side for receiving and holding the first bolt-shaped coupling element 5 and on the other side second receptacles for receiving the second bolt-shaped coupling element 6. Locking elements, which cannot be seen here, are provided on the downwardly open second receptacles for the locking holding of the second bolt-shaped coupling element 6.
  • the quick coupler 2 which is usually arranged on the boom of an excavator, is first moved in such a way that the first bolt-shaped coupling element 5 on the adapter 1 is inserted into the claw-shaped receptacles 13 on one side of the quick coupler 2 . Then the quick changer 2 with the locking elements still retracted is pivoted around the first bolt-shaped coupling element 5 so that the second bolt-shaped coupling element 6 on the adapter 1 comes to rest against contact surfaces of the downwardly open receptacles on the other side of the quick changer 2.
  • a first coupling piece 15 is provided on the adapter 1 for connection to a second coupling piece 16 arranged on the quick changer 2.
  • an electrical connection can be created between the adapter 1 on the attachment side and the quick coupler 2 on the construction machine, for example.
  • the attachments can be supplied with electrical energy or electrical signals can be transmitted between the attachments and the excavators or other construction machines.
  • the first coupling piece 15 is designed as a plug fixedly arranged on the adapter 1 and the second coupling piece 16 is designed as a sleeve that can be moved with the cylinder 14.
  • First coupling piece 15 shown separately and designed here as a plug, has a hollow-cylindrical base body 17 with first electrical contact elements 18 arranged therein.
  • first electrical contact elements 18 of the coupling piece 15 are provided in a first contact insert 19 which is arranged within the base body 17 and permanently cast with it.
  • first electrical contact elements 18 are sleeve-shaped and embedded in the first contact insert 19. They can be connected to a power supply or a consumer via lines not shown.
  • the second coupling piece 16 shown here designed as a sleeve, also contains a hollow cylindrical base body 20 with second electrical contact elements 21 arranged therein.
  • the second electrical contact elements 21 are embedded in a second contact insert 22 cast into the housing 20.
  • the second contact elements 21 are designed here as protruding pins.
  • the electrical connection between the first and second electrical contact elements 18 and 21 is made via an exchangeable intermediate piece 23, which in the embodiment shown is held in a force-locking manner within the housing 17 of the first coupling piece 15 via a press fit or other non-destructive detachable connection, but if necessary can easily be exchanged.
  • the exchangeable intermediate piece 23 could, however, also be arranged in the housing 20 of the second coupling piece 16. It could also be one at a time exchangeable intermediate piece 23 can be provided both in the first coupling piece 15 and in and the second coupling piece 16.
  • the intermediate piece 23 has, on its first side facing the contact insert 19 of the first coupling piece 15, first electrical contacts 24 for connection to the first contact elements 18 of the first coupling piece 15.
  • the first electrical contacts 24 are designed as pins for engaging the sleeve-shaped first electrical contact elements 18 of the first coupling piece 15.
  • the intermediate piece 23 On its second side facing the contact insert 22 of the second coupling piece 16, the intermediate piece 23 contains second electrical contacts 25 for connection to the second contact elements 12 of the second coupling piece 16.
  • the second electrical contacts 25 are designed as axially displaceable and resilient contact pins.
  • a sealing element 27 designed here as an O-ring, is arranged for sealing the intermediate piece 23 from the base body 17 of the first coupling piece 15.
  • a second annular groove 28 provided on the outside of the intermediate piece 23, an annular seal 29 with an X-shaped cross section is also arranged.
  • the base body 17 of the first coupling piece 15 can be sealed off from the base body 20 of the second coupling piece 16 by this seal 29.
  • the intermediate piece 23 on its side facing the contact insert 19 of the first coupling piece 15 has a positioning element 30, designed here as a flattened projection, for positive engagement with an in Figure 7 has counter element 31, which is adapted to the contour of the positioning element 30, on the contact insert 19 arranged in the base body 17.
  • the counter element 31 is designed as a flattened area on the outside of the intermediate piece 23.
  • the positioning element 30 and the matching counter element 31 can ensure that the intermediate piece 23 can only be coupled to the contact insert 19 in a predetermined position and thus the pin-shaped contacts 24 provided on the intermediate piece 23 for proper engagement in the sleeve-shaped contact elements 18 provided for this purpose get in contact insert 19. Also can on this also prevents an intermediate piece 23 that is not adapted to the connections of the contact insert 19 from being coupled to the first coupling piece 15.
  • FIG 9 Another embodiment of an intermediate piece 23 is shown.
  • the intermediate piece 23 has further contacts 32 arranged around the contacts 25 to form a further connection plane. This enables further controls via a single plug connection.
  • One of the contacts 32 can have a raised head and thus serve as a ground contact which, when the first coupling piece 15 is coupled to the second coupling piece 16, establishes an electrical connection before the other contacts.
  • the coupling piece provided on the quick changer can also have an easily exchangeable intermediate piece with the features described above.
  • An exchangeable intermediate piece can also be provided on both coupling pieces, ie both on the first coupling piece arranged on the adapter and on the second coupling piece provided on the quick changer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP19211221.7A 2019-03-05 2019-11-25 Système à changement rapide, adaptateur et dispositif de changement rapide Withdrawn EP3705630A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019105486.9A DE102019105486A1 (de) 2019-03-05 2019-03-05 Schnellwechselsystem, Adapter und Schnellwechsler

Publications (1)

Publication Number Publication Date
EP3705630A1 true EP3705630A1 (fr) 2020-09-09

Family

ID=68655382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19211221.7A Withdrawn EP3705630A1 (fr) 2019-03-05 2019-11-25 Système à changement rapide, adaptateur et dispositif de changement rapide

Country Status (6)

Country Link
US (1) US20200283989A1 (fr)
EP (1) EP3705630A1 (fr)
JP (1) JP2020145179A (fr)
AU (1) AU2019283910A1 (fr)
CA (1) CA3065584A1 (fr)
DE (1) DE102019105486A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240117603A1 (en) 2022-10-06 2024-04-11 Caterpillar Inc. Universal Hydraulic Connecting Quick Coupler System

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655804A2 (fr) * 1993-11-24 1995-05-31 Itt Industries, Inc. Connecteur à contact interchangeable
GB2332103A (en) * 1997-12-05 1999-06-09 Gore & Ass Connector with sacrificial parts
CA2707798A1 (fr) * 2009-06-18 2010-12-18 Thomas & Betts International, Inc. Connecteur electrique
US20110244704A1 (en) * 2010-04-06 2011-10-06 Trottier Robert R Extension cable with sequenced disconnect
DE202013001658U1 (de) 2013-02-20 2013-03-11 Oilquick Deutschland Gmbh Schnellwechseladapter mit einer Schmutzschutzvorrichtung
WO2013052697A2 (fr) * 2011-10-04 2013-04-11 DOOBROW, Todd Adaptateurs de courant à déconnexion rapide
WO2018074937A1 (fr) * 2016-10-21 2018-04-26 Doherty Engineered Attachments Limited Ensemble de couplage et élément de fixation comprenant un élément de couplage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT15844U1 (de) * 2017-01-26 2018-07-15 Baumaschinentechnik Ges M B H Vorrichtung zum Befestigen von Anbaugeräten an Baggerauslegern

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0655804A2 (fr) * 1993-11-24 1995-05-31 Itt Industries, Inc. Connecteur à contact interchangeable
GB2332103A (en) * 1997-12-05 1999-06-09 Gore & Ass Connector with sacrificial parts
CA2707798A1 (fr) * 2009-06-18 2010-12-18 Thomas & Betts International, Inc. Connecteur electrique
US20110244704A1 (en) * 2010-04-06 2011-10-06 Trottier Robert R Extension cable with sequenced disconnect
WO2013052697A2 (fr) * 2011-10-04 2013-04-11 DOOBROW, Todd Adaptateurs de courant à déconnexion rapide
DE202013001658U1 (de) 2013-02-20 2013-03-11 Oilquick Deutschland Gmbh Schnellwechseladapter mit einer Schmutzschutzvorrichtung
WO2018074937A1 (fr) * 2016-10-21 2018-04-26 Doherty Engineered Attachments Limited Ensemble de couplage et élément de fixation comprenant un élément de couplage

Also Published As

Publication number Publication date
AU2019283910A1 (en) 2020-09-24
JP2020145179A (ja) 2020-09-10
DE102019105486A1 (de) 2020-09-10
CA3065584A1 (fr) 2020-09-05
US20200283989A1 (en) 2020-09-10

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