EP2378006A1 - Dispositif de changement rapide doté d'un support de serrage actif pour l'accouplement d'un outil sur une machine de travail - Google Patents

Dispositif de changement rapide doté d'un support de serrage actif pour l'accouplement d'un outil sur une machine de travail Download PDF

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Publication number
EP2378006A1
EP2378006A1 EP11161157A EP11161157A EP2378006A1 EP 2378006 A1 EP2378006 A1 EP 2378006A1 EP 11161157 A EP11161157 A EP 11161157A EP 11161157 A EP11161157 A EP 11161157A EP 2378006 A1 EP2378006 A1 EP 2378006A1
Authority
EP
European Patent Office
Prior art keywords
quick
coupling
hydraulic
adapter
change device
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
EP11161157A
Other languages
German (de)
English (en)
Other versions
EP2378006B1 (fr
Inventor
Leone Laurito
Jan Rotard
Peter Lehnhoff
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.)
Lehnhoff Hartstahl GmbH and Co KG
Original Assignee
Lehnhoff Hartstahl GmbH and Co 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 Lehnhoff Hartstahl GmbH and Co KG filed Critical Lehnhoff Hartstahl GmbH and Co KG
Priority to PL11161157T priority Critical patent/PL2378006T3/pl
Publication of EP2378006A1 publication Critical patent/EP2378006A1/fr
Application granted granted Critical
Publication of EP2378006B1 publication Critical patent/EP2378006B1/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
    • E02F3/3663—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
    • E02F3/3609—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

Definitions

  • the invention relates to a quick-change device for coupling a tool to a working machine according to the type specified in the preamble of claim 1.
  • Such quick-change devices are for earthmoving machines, such.
  • excavator to allow a simple and quick change between various hydraulic tools, such as sifting spoons, pans, hydraulic hammer or the like, well known.
  • a generic quick-change device is in the WO 91/01414 disclosed.
  • the disclosed quick-change device has a swivel and locking device comprehensive, associated with the excavator quick coupler and an adapter associated with the tool.
  • the quick-change device also has an automatic, a quick coupler side and an adapter-side coupling part comprehensive, hydraulic coupling that automatically couples a backhoe hydraulic circuit with a tool-side hydraulic circuit when pivoting the two coupling parts. Further actions on the part of the machine operator, namely leaving the cab of the excavator and manual production of the hydraulic coupling between the excavator side and the tool side hydraulic circuit are not required.
  • Another generic quick-change device is in the DE 101 59 417 A1 described. This quick-change device is characterized inter alia by the fact that the quick coupler side and / or the adapter-side coupling block are movably mounted.
  • the invention has for its object to provide a quick-change device for coupling a tool on a working machine according to that in the preamble of claim 1 such that a reliable working clutch is guaranteed.
  • the quick-change device comprises a fixed to a machine quick coupler and a tool attached to an adapter and an effective between quick change and adapter locking device for producing a mechanical coupling between the machine and tool.
  • the quick-change device also comprises a hydraulic clutch.
  • the hydraulic clutch in turn comprises a quick coupler side hydraulic block with hydraulic lines and corresponding hydraulic coupling valves and an adapter-side coupling block with hydraulic lines and coupling valves.
  • the quick coupler-side coupling block and / or the adapter-side coupling block is elastically mounted in its surrounding housing, that is, in the quick coupler-side housing or the adapter-side housing.
  • the quick coupler-side coupling block and / or the adapter-side coupling block in at least one of its hydraulic lines arranged in the flow direction S downstream of the coupling valve, partially extending into the hydraulic line and slidably mounted in the flow direction S in the hydraulic line, designed as a hollow body Verspann 4.
  • the Verspann 40 in this case has on its located in the hydraulic line area a pressure application surface and stands with her out of the hydraulic line range over a molded-in area in this area abutment with the surrounding housing.
  • the bracing support Due to the hydraulic fluid flowing through the coupling valves in the coupled state and the pressure application surface present on the bracing support, the bracing support according to the invention acts like a hydraulic cylinder and is traversed in the direction of flow S and braces against the surrounding housing with the contact surface. Due to the flexible mounting of the quick coupler side and / or the adapter side coupling block, the two coupling blocks are pressed against one another in response, so that the risk of leakage is significantly reduced.
  • Verspanntic Another advantage of the Verspanntic invention is that this is due to the located in the hydraulic line, the pressure application area having region in the coupled state "automatically”, namely at flow of hydraulic fluid, is effective.
  • the Verspann media on its at its located in the hydraulic line area on a pressure application surface.
  • the ring-shaped end face - ring surface - the Verspann suction forms the pressure application surface.
  • the Verspann is advantageously ensured that a "rich" stop between the Verspann amalgam and housing is guaranteed.
  • a "slipping" of Verspann amalgam is not possible, i. a loss-proof positioning of the bracing support is also ensured.
  • a seal preferably an O-ring seal, is arranged between the hydraulic line and the bracing support.
  • the clutch valves are active clutch valves.
  • Active Clutch Valves means that the clutch valves do not necessarily open when connecting the clutch blocks, but are actively opened or closed by energizing them.
  • the usage of Active coupling valves prove to be advantageous, as they ensure a high flow rate with low space requirements,
  • the coupling valves are designed as Kurzhubventile, where a stroke of, for example, 1 to 5 millimeters sufficient to actuate the valve. This proves to be advantageous because of the low valve lifts a compact design can be realized.
  • the quick-change-side and / or adapter-side coupling block is elastically mounted on its surrounding housing by means of an elastic pressing-off element.
  • an elastic push-off element proves to be particularly advantageous since this represents a cost-effective and low-maintenance storage, which also also assumes a sealing function.
  • Fig. 1 shows a quick-change device 10 via a sifting bucket 12 is releasably attached to an excavator 14. For reasons of clarity, only the boom of the excavator 14 is shown here.
  • the quick-change device 10 comprises a connected to the boom quick coupler 16 and an arranged on the spreader 12 adapter 18.
  • a mechanical coupling between the quick coupler 16 and adapter 18 is produced in a known manner, so that a simple and quick tool change, for example, storing the sieve spoon 12 and recording a hydraulic hammer or the like, is possible.
  • the quick-change device 10 For connecting the tool, for example, the illustrated sieve spoon 12, to the hydraulic system of the excavator, the quick-change device 10 also has a generally designated by the reference numeral 20 hydraulic coupling.
  • the hydraulic coupling 20 in turn comprises a quick coupler-side coupling block 20a and an adapter-side coupling block 20b.
  • the quick coupler side coupling block 20a hydraulic lines 22a, 24a and 26a and associated coupling valves 28a, 30a and 32a.
  • the adapter-side coupling block 20b also has hydraulic lines 22b, 24b and 26b with associated coupling valves 28b, 30b 32b.
  • the clutch valves 28a, 28b; 30a, 30b; 32a, 32b arranged in register one above the other, so that a flow of hydraulic fluid through the hydraulic lines 22a, 22b; 24a, 24b and 26a, 26b guaranteed by the quick coupler 16 to the adapter 18 and vice versa.
  • the Verspann 40 invention is most evident Fig. 3 seen. How out Fig. 3 can be seen, the coupling valve 30a in the flow direction S considered a Verspann pedal 34 downstream. Trained as a hollow body Verspann 400 34 extends partially in the hydraulic line 24a and is slidably viewed in the flow direction S in the hydraulic line 24a stored. In order to avoid an unwanted escape of hydraulic fluid between the outer peripheral surface of the Verspann man 34 and the inner peripheral surface of the hydraulic line, the Verspann bicycle in its outer peripheral surface a groove in which a corresponding seal 36 is introduced.
  • the Verspann 150 at its end facing the coupling valve on a ring-shaped pressure application surface 38.
  • the Verspann 150 has a flange-like projection 40.
  • the flange-like projection 40 forms a contact surface 42, via which the Verspann man 34 is in contact with the surrounding housing 44.
  • the effective piston area on which the pressure prevailing in the valve is not limited to the pressure application surface 38, but as the total surface of the diameter of the hydraulic line in which the Verspann sip sips. Ultimately, this is the effective area with which the two valve blocks are pressed against each other.

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)
  • Fluid-Pressure Circuits (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP11161157.0A 2010-04-16 2011-04-05 Dispositif de changement rapide doté d'un support de serrage actif pour l'accouplement d'un outil sur une machine de travail Active EP2378006B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11161157T PL2378006T3 (pl) 2010-04-16 2011-04-05 Urządzenie do szybkiej wymiany z aktywną podporą mocującą do doczepiania narzędzia do maszyny roboczej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010016491A DE102010016491B4 (de) 2010-04-16 2010-04-16 Schnellwechselvorrichtung zum Ankuppeln eines Werkzeugs an eine Arbeitsmaschine

Publications (2)

Publication Number Publication Date
EP2378006A1 true EP2378006A1 (fr) 2011-10-19
EP2378006B1 EP2378006B1 (fr) 2016-12-14

Family

ID=44117426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11161157.0A Active EP2378006B1 (fr) 2010-04-16 2011-04-05 Dispositif de changement rapide doté d'un support de serrage actif pour l'accouplement d'un outil sur une machine de travail

Country Status (6)

Country Link
EP (1) EP2378006B1 (fr)
DE (1) DE102010016491B4 (fr)
DK (1) DK2378006T3 (fr)
ES (1) ES2616785T3 (fr)
HU (1) HUE033323T2 (fr)
PL (1) PL2378006T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3722513A1 (fr) * 2019-04-09 2020-10-14 R&R exca Oy Système de couplage pour coupler des outils à un bras d'excavateur et utilisations du système de couplage
CN113653123A (zh) * 2021-09-23 2021-11-16 扬州扬子到河复合材料制品有限公司 一种多功能挖掘机工具箱后罩及其加工工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116815862B (zh) * 2023-04-26 2023-12-08 徐州巴特工程机械股份有限公司 一种集双锁装置于抓钩系统的全自动快换

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001414A1 (fr) 1989-07-18 1991-02-07 John Ieodor Sonerud Accouplement de systemes d'entrainement a un accessoire d'excavateur
DE10159417A1 (de) 2001-03-09 2002-09-26 Liebherr Hydraulikbagger Schnellkupplung
EP1473415A1 (fr) * 2003-04-30 2004-11-03 Ateliers de Construction du Beaujolais Dispositif sécurisé de verrouillage hydraulique d'attaches rapides et de connexions hydrauliques associées, pour un coupleur
EP1566490A1 (fr) * 2004-02-23 2005-08-24 WIMMER, Alois Arrangement pour raccorder des conduites d'énergie, notamment des conduites de pression
FR2886372A1 (fr) * 2005-05-25 2006-12-01 Const Du Beaujolais Sa Atel Dispositif destine a realiser l'alimentation en huile d'un outil monte sur un engin porteur et ensemble de connexion hydraulique
WO2010062166A1 (fr) * 2008-11-27 2010-06-03 Caterpillar Work Tools B.V. Dispositif de couplage pour outil d'engin de terrassement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510095C2 (sv) * 1996-02-23 1999-04-19 Dart Engineering Ag Anordning vid snabbkoppling
DE102004014824B4 (de) * 2004-03-24 2019-08-01 Lehnhoff Hartstahl Gmbh Schnellwechselvorrichtung mit einer hydraulischen Kupplung für die Medien an einem Baugerät

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991001414A1 (fr) 1989-07-18 1991-02-07 John Ieodor Sonerud Accouplement de systemes d'entrainement a un accessoire d'excavateur
DE10159417A1 (de) 2001-03-09 2002-09-26 Liebherr Hydraulikbagger Schnellkupplung
EP1473415A1 (fr) * 2003-04-30 2004-11-03 Ateliers de Construction du Beaujolais Dispositif sécurisé de verrouillage hydraulique d'attaches rapides et de connexions hydrauliques associées, pour un coupleur
EP1566490A1 (fr) * 2004-02-23 2005-08-24 WIMMER, Alois Arrangement pour raccorder des conduites d'énergie, notamment des conduites de pression
FR2886372A1 (fr) * 2005-05-25 2006-12-01 Const Du Beaujolais Sa Atel Dispositif destine a realiser l'alimentation en huile d'un outil monte sur un engin porteur et ensemble de connexion hydraulique
WO2010062166A1 (fr) * 2008-11-27 2010-06-03 Caterpillar Work Tools B.V. Dispositif de couplage pour outil d'engin de terrassement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3722513A1 (fr) * 2019-04-09 2020-10-14 R&R exca Oy Système de couplage pour coupler des outils à un bras d'excavateur et utilisations du système de couplage
CN113653123A (zh) * 2021-09-23 2021-11-16 扬州扬子到河复合材料制品有限公司 一种多功能挖掘机工具箱后罩及其加工工艺

Also Published As

Publication number Publication date
DK2378006T3 (en) 2017-03-13
ES2616785T3 (es) 2017-06-14
DE102010016491B4 (de) 2012-09-27
HUE033323T2 (en) 2017-11-28
DE102010016491A1 (de) 2011-10-20
PL2378006T3 (pl) 2017-08-31
EP2378006B1 (fr) 2016-12-14

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