EP2233642B1 - Attache rapide pour engins de travaux publics - Google Patents

Attache rapide pour engins de travaux publics Download PDF

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Publication number
EP2233642B1
EP2233642B1 EP10450017A EP10450017A EP2233642B1 EP 2233642 B1 EP2233642 B1 EP 2233642B1 EP 10450017 A EP10450017 A EP 10450017A EP 10450017 A EP10450017 A EP 10450017A EP 2233642 B1 EP2233642 B1 EP 2233642B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
coupling
attachment
quick
mounting plate
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
EP10450017A
Other languages
German (de)
English (en)
Other versions
EP2233642A1 (fr
Inventor
Michael Perwein
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.)
Baumaschinentechnik GmbH
Original Assignee
Baumaschinentechnik GmbH
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 Baumaschinentechnik GmbH filed Critical Baumaschinentechnik GmbH
Publication of EP2233642A1 publication Critical patent/EP2233642A1/fr
Application granted granted Critical
Publication of EP2233642B1 publication Critical patent/EP2233642B1/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
    • E02F3/3627—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
    • E02F3/3654—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
    • E02F3/3663—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 device for attaching attachments to excavator arms, with a quick-change device and a mounting plate with the features of the introductory part of claim 1 (see. EP 1 840 276 A ).
  • Such devices which allow the attachment and change of attachments at the free end of an excavator boom, are known.
  • the AT 002 087 U1 the WO 98/46835 A , the AT 413 117 B and the AT 008 080 U to get expelled.
  • an attachment is to be defined on the excavator boom, which itself has a hydraulic drive, such as hydraulic hammers or slope spoons, it is necessary to connect the hydraulic lines leading to the hydraulic device on the attachment with the hydraulic lines coming from the excavator, after the attachment at the free End of the excavator boom has been attached using the quick-change device and the mounting plate, so that the operation and the use of the attachment can be controlled from the cab of the excavator.
  • the WO 2004/072387 A shows a quick-change device with mounting plate, wherein for locking the quick-change device bolts are provided.
  • further electrical and hydraulic couplings which are closed by means of a cross bar, which is displaced by locking cylinders at the same time with the locking bolt.
  • a coupling is described with which a working tool can be attached to an excavator boom.
  • two pairs of extendable bolts are provided on the excavator boom, which engage in corresponding exception openings on the working tool.
  • a component is attached to a locking bolt, which carries the end of a hydraulic hose which is to engage with a counterpart on the implement when the locking bolt is actuated.
  • a device of the type mentioned and according to the preamble of claim 1, comprising a quick-change device and a mounting plate, in which when attaching an attachment at the free end of an excavator boom connecting the hydraulic equipment leading to the attachment is done automatically, is from the AT 008 623 U2 or the EP 1 840 276 A2 known.
  • the known device has worked well, but it is sometimes problematic that when out AT 008623 U2 or the EP 1 840 276 A known device, the block is led out with the coupling plugs from a plunger housing, wherein on the plunger housing coming from the excavator hydraulic lines are connected. To adjust the block with the coupling sleeves this is connected to the bars over which the quick-change device is connected to the mounting plate (by the bars are advanced by a locking cylinder).
  • the invention has for its object to provide a simpler construction of a device for attaching attachments to excavator jibs with a quick-change device and a mounting plate available.
  • an automatic coupling of the at least one leading to the attachment device is still Hydraulic line provided.
  • This hydraulic clutch is activated when fixing the attachment plate to the quick-change device connected to the excavator boom (at least one hydraulic clutch is closed). This ensures that when attaching the attachment with the aid of the device according to the invention, at least one hydraulic drive (hydraulic cylinder) provided in the attachment is connected to at least one line for hydraulic medium leading from the excavator to the quick-change device without any additional measures.
  • the blocks are actuated by the hydraulic connections of hydraulic cylinders (usually on each side of the quick-change device) which are attached to the quick-change device.
  • hydraulic cylinders usually on each side of the quick-change device
  • This causes sealing problems in the from the AT 008 623 U2 known embodiment in which the hydraulic medium is passed over the plunger housing, away, since the at least one hydraulic line coming from the excavator, directly to the block with the hydraulic connections (coupling plug) leads, so the plunger provided in the known device are dispensable.
  • the hydraulic couplings each having a displaceable on the quick-change device block, the coupling plug carries, and attached to the mounting block block, the coupling sleeves carries.
  • At least three clutch cylinders are provided according to the invention.
  • the hydraulic clutch is actuated by hydraulic medium which acts on a locking cylinder or a bolt which is displaceable in the locking device.
  • At least one guide pin is provided on one of the blocks and at least one guide hole for engagement of the guide pins is provided on the other of the blocks.
  • the clutch cylinder after advancing the bolt by means of a locking cylinder can be actuated.
  • the clutch cylinders are actuated when a predetermined value of the pressure of the hydraulic medium in the locking cylinder.
  • two blocks are provided on the longitudinal sides of the mounting plate.
  • each block is arranged within a bolt receptacle fastened to the mounting plate.
  • a 6/2 way valve is provided, which redirects the hydraulic circuit to a mounted on the mounting plate attachment after closing the hydraulic clutch.
  • the bolt guide on the quick-change device and / or the bolt receptacle on the mounting plate has an uninterruptible opening.
  • protective devices are provided, which are attachable via coupling plug of the hydraulic clutches.
  • the protective devices are arranged on the mounting plate, and associated with the quick-change device attachment plate the coupling plugs are assigned to cover.
  • the apparatus 1 shown comprises a quick-change device 3 arranged at the free end of an excavator boom or the like (not shown) and a mounting plate 5 connected to an attachment such as a hydraulic breaker or a battering bucket (not shown).
  • an attachment such as a hydraulic breaker or a battering bucket (not shown).
  • a pressure medium cylinder preferably a hydraulic cylinder, provided and coupled with the bolts 7.
  • the bolt 7 can by a bolt guide in their in Fig. 1 shown active position in which they engage in the bolt receptacle 9 on the mounting plate 5 of the attachment, are moved and connect the attachment securely with the quick-change device.
  • Fig. 1 It can be seen that lead to the quick-change device 3 coming from the excavator hydraulic lines, which are connected to a block 21, are mounted on the coupling plug 23.
  • the block 21 is mounted on the piston rod 19 of a hydraulic cylinder 17 of the clutch cylinders mounted on the quick-change device 3.
  • first of the latch 7 actuated locking cylinder 10 of the quick-change device 3 is acted upon by hydraulic medium to extend the latch 7 and the bolt 7, so that the mounting plate 5 of the implement is coupled to the quick-change device 3.
  • hydraulic cylinders 17 are acted upon by hydraulic pressure via a pressure follower valve.
  • the piston rods 19 of the hydraulic cylinders 17 extend and provide the connection between the coupling plugs 23 fixed to the block 21 and coupling sleeves 29 arranged on a block 27 mounted on the mounting plate 5, so that the hydraulic couplings 20 are closed are.
  • the block 27 with the coupling sleeves 29 is arranged on the mounting plate 5. From that the Coupling plug 23 supporting block 21 are in the exemplary embodiment of two guide pins 25 from which engage in closed hydraulic coupling 20 in guide holes in the coupling sleeves 29 bearing block 27.
  • the block 27 with the coupling sleeves 29 is attached to the mounting plate 5.
  • a guide pin 31 is provided.
  • ports 33 are provided for coming from the excavator hydraulic lines.
  • hydraulic coupling 40 is for the actuation of the hydraulic coupling 40 between the excavator to the quick-change device 3 leading hydraulic lines 41 and hydraulic lines 43 to the attachment, z.
  • a separate clutch cylinder 45 is provided as a slope ladle lead.
  • first of the latch 7 actuated locking cylinder 10 of the quick-change device 3 is acted upon by hydraulic medium to extend the latch 7 and the bolt 7, so that the mounting plate 5 of the implement is coupled to the quick-change device 3.
  • a predetermined pressure for example a pressure of 120 bar
  • hydraulic pressure is applied to the clutch cylinder 45 via a pressure follower valve.
  • the piston rod 47 of the clutch cylinder 45 extends and provides the connection between the coupling plugs 23, which are fixed to the piston rod 47 of the clutch cylinder via a block 49, and coupling sleeves 29, which are arranged on a, mounted on the mounting plate 5 block 51 ago ,
  • the block 51 with the coupling sleeves 29 is arranged engaging in fixed to the quick-change device 3 mounting plate 5 in the bolt receptacle 9 on the mounting plate 5.
  • From the coupling plug 23 carrying block 49 are in the exemplary embodiment of two guide pins 25 from which engage in closed hydraulic coupling 40 in guide holes 31 in which the coupling sleeves 29 bearing block 51.
  • the device 1 is after closing the hydraulic clutch 40 in the embodiment of the device according to the Fig. 4 and 5 after closing the hydraulic clutch 40 under the action of the clutch cylinder 45 via a 6/2 way valve 55 which is electromagnetically controlled, the hydraulic circuit to the cylinder of the slope tray redirected.
  • the device according to the invention 1 implements without their own hydraulic drive, as this is provided in hydraulic hammers or slope spoons, is used, it is provided that 23 are placed on the provided on the quick-change device 3 coupling connector protection elements.
  • Such protective elements can be arranged on the attachment plate 3 where, in the exemplary embodiment shown, the blocks 27 and 51 are arranged with coupling sleeves 29.

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)
  • Fluid-Pressure Circuits (AREA)

Claims (3)

  1. Dispositif (1) pour relier un appareil porté à une flèche active doté d'un dispositif de changement rapide (3) pouvant être fixé sur la flèche, dans lequel des verrous (7) peuvent coulisser, d'une plaque de montage (5) pouvant être fixée sur l'appareil porté, le dispositif de changement rapide (3) et la plaque de montage (5) pouvant être reliés de façon sûre par les verrous (7), et d'accouplements hydrauliques (20, 40), avec lesquels des conduites hydrauliques (15, 41) venant de l'excavateur peuvent être reliées à des conduites hydrauliques (16, 43), qui aboutissent à au moins un moteur hydraulique dans l'appareil porté, un accouplement hydraulique (40) étant disposé dans le plan de symétrie du dispositif (1) et deux autres accouplements hydrauliques (80) étant prévus sur les côtés longitudinaux du dispositif (1), chaque accouplement hydraulique (20, 40) présentant un bloc (27, 51) fixé sur la plaque de montage (5) avec des manchons d'accouplement (29), un premier vérin d'accouplement (45) étant prévu pour l'actionnement de l'accouplement hydraulique (40) disposé dans le plan de symétrie, caractérisé en ce qu'à chaque fois un autre vérin d'accouplement (17) est prévu pour l'actionnement des accouplements hydrauliques (20) prévus sur les côtés longitudinaux du dispositif.
  2. Dispositif selon la revendication 1, caractérisé en ce que deux blocs (27) sont prévus sur la plaque de montage (5) sur les côtés longitudinaux du dispositif (1).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le bloc (51) avec des manchons d'accouplement (29) de l'accouplement hydraulique (40) prévu dans le plan de symétrie du dispositif (1) est disposé à l'intérieur d'un logement de verrou (9) fixé sur la plaque de montage (5).
EP10450017A 2009-03-23 2010-02-12 Attache rapide pour engins de travaux publics Active EP2233642B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0016709U AT11312U1 (de) 2009-03-23 2009-03-23 Schnellkupplung für baumaschinen

Publications (2)

Publication Number Publication Date
EP2233642A1 EP2233642A1 (fr) 2010-09-29
EP2233642B1 true EP2233642B1 (fr) 2011-09-07

Family

ID=42244803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10450017A Active EP2233642B1 (fr) 2009-03-23 2010-02-12 Attache rapide pour engins de travaux publics

Country Status (2)

Country Link
EP (1) EP2233642B1 (fr)
AT (2) AT11312U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2426266B1 (fr) 2010-09-07 2018-10-17 Caterpillar Work Tools B. V. Agencement de couplage
EP2426267B1 (fr) * 2010-09-07 2020-12-30 Caterpillar Work Tools B. V. Agencement de couplage
AT15844U1 (de) * 2017-01-26 2018-07-15 Baumaschinentechnik Ges M B H Vorrichtung zum Befestigen von Anbaugeräten an Baggerauslegern
CN109555177B (zh) * 2019-01-25 2023-10-17 北京科技大学 一种液压自动快速切换对接平台
CN115369938A (zh) * 2022-09-22 2022-11-22 钱薛飞 一种快换式铲斗的液压挖掘机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501152C2 (sv) * 1993-04-20 1994-11-28 John Teodor Sonerud Anordning för snabbkoppling av ett redskap till en gräv-/lastmaskin eller liknande
EP0975840B1 (fr) 1997-04-14 2001-03-07 Baumaschinentechnik Gesellschaft mbH Dispositif de montage rapide pour pelle mecanique
AT2087U1 (de) 1997-04-14 1998-04-27 Baumaschinentechnik Ges M B H Schnellwechselvorrichtung für bagger mit verriegelungsanzeige
AT413117B (de) 2003-04-24 2005-11-15 Baumaschinentechnik Ges M B H Anbauplatte für schnellwechselvorrichtung
AT7773U1 (de) * 2004-02-23 2005-08-25 Wimmer Alois Ing Anordnung zum verbinden von energieleitungen, insbesondere druckleitungen
DK1580329T3 (da) * 2004-03-25 2013-10-28 Stig Engstroem Redskabshurtigkoblingsindretning
DE102004015471A1 (de) * 2004-03-26 2005-10-13 Caterpillar Work Tools B.V. Schnellwechsler für Bagger
AT8080U1 (de) 2004-06-28 2006-01-15 Stern & Hafferl Baugesellschaf Temporäre abstützeinrichtung
AT8623U3 (de) 2006-03-27 2007-04-15 Baumaschinentechnik Ges M B H Vorrichtung zum befestigen von anbaugeräten

Also Published As

Publication number Publication date
EP2233642A1 (fr) 2010-09-29
ATE523637T1 (de) 2011-09-15
AT11312U1 (de) 2010-08-15

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