EP2233642B1 - Quick coupler for construction machines - Google Patents

Quick coupler for construction machines 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
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EP
European Patent Office
Prior art keywords
hydraulic
coupling
attachment
quick
mounting plate
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EP10450017A
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German (de)
French (fr)
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EP2233642A1 (en
Inventor
Michael Perwein
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Baumaschinentechnik GmbH
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Baumaschinentechnik GmbH
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Publication of EP2233642A1 publication Critical patent/EP2233642A1/en
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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.

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  • 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)

Description

Die Erfindung betrifft eine Vorrichtung zum Befestigen von Anbaugeräten an Baggerauslegern, mit einer Schnellwechselvorrichtung und einer Anbauplatte mit den Merkmalen des einleitenden Teils von Anspruch 1 (vgl. EP 1 840 276 A ).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 ).

Derartige Vorrichtungen, die das Befestigen und das Wechseln von Anbaugeräten am freien Ende eines Baggerauslegers erlauben, sind bekannt. Beispielsweise kann hiezu auf die AT 002 087 U1 , die WO 98/46835 A , die AT 413 117 B und die AT 008 080 U verwiesen werden.Such devices, which allow the attachment and change of attachments at the free end of an excavator boom, are known. For example, on the AT 002 087 U1 , the WO 98/46835 A , the AT 413 117 B and the AT 008 080 U to get expelled.

Diese bekannten Vorrichtungen haben sich gut bewährt, da sie ein rasches Befestigen von Anbaugeräten (Löffel, Hydraulikhämmer und Ähnliches) an Baggerauslegern erlauben und den sicheren Sitz des Anbaugerätes am Baggerausleger gewährleisten.These known devices have been well proven, as they allow rapid attachment of attachments (spoons, hydraulic hammers and the like) to excavator jibs and ensure the secure fit of the attachment on the excavator boom.

Wenn am Baggerausleger ein Anbaugerät festzulegen ist, das selbst einen hydraulischen Antrieb aufweist, wie beispielsweise Hydraulikhämmer oder Böschungslöffel, ist es erforderlich, die Hydraulikleitungen, die zu der Hydraulikeinrichtung am Anbaugerät führen, mit den vom Bagger kommenden Hydraulikleitungen zu verbinden, nachdem das Anbaugerät am freien Ende des Baggerauslegers mit Hilfe der Schnellwechselvorrichtung und der Anbauplatte befestigt worden ist, damit der Betrieb und das Benützen des Anbaugerätes vom Führerstand des Baggers aus gesteuert werden kann.If 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.

Es sind daher schon Vorschläge bekannt geworden, Hydraulikleitungen mit einem Anbaugerät zu verbinden (vgl. DE 10 2004 015 471 A , SE 501 152 C , EP 1 566 490 A und EP 1 580 329 A ).It is therefore already known proposals to connect hydraulic lines with an attachment (see. DE 10 2004 015 471 A . SE 501 152 C . EP 1 566 490 A and EP 1 580 329 A ).

Die EP-A-1 317 585 zeigt eine Vorrichtung mit zwei Riegeln, die hydraulisch betätigt werden, und dabei die Kupplung für die Hydraulikleitungen schließen.The EP-A-1 317 585 shows a device with two bars, which are hydraulically operated, thereby closing the coupling for the hydraulic lines.

Aus der EP-A-1 329 559 und aus der EP-A-0 883 717 sind Vorrichtungen zum Verbinden von Baggerauslegern mit Arbeitsgeräten durch Verriegelungsbolzen bekannt, die gleichzeitig Kupplungen für Hydraulikleitungen tragen. Durch Einfahren der Verriegelungsbolzen mit ihren Kupplungsteilen für die Hydraulik in Kupplungsaufnahmen mit einem Gegenstück für die Hydraulikkupplung wird nicht nur das Arbeitsgerät am Baggerausleger befestigt, sondern auch die Hydraulikleitung verbunden:From the EP-A-1 329 559 and from the EP-A-0 883 717 are known devices for connecting excavator arms with implements by locking bolts, which simultaneously wear couplings for hydraulic lines. By retracting the locking bolt with its coupling parts for the hydraulics in clutch mounts with a counterpart for the hydraulic clutch not only the implement is attached to the excavator boom, but also connected the hydraulic line:

Die WO 2004/072387 A zeigt eine Schnellwechselvorrichtung mit Anbauplatte, wobei zum Verriegeln der Schnellwechselvorrichtung Riegel vorgesehen sind. Vorgesehen sind weiters elektrische und hydraulische Kupplungen, die mit Hilfe eines Querriegels, der von Verriegelungszylindern zugleich mit den Verriegelungsbolzen verschoben wird, geschlossen werden.The WO 2004/072387 A shows a quick-change device with mounting plate, wherein for locking the quick-change device bolts are provided. Provided are 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.

In der EP-B-0 743 998 wird eine Kupplung beschrieben, mit welcher ein Arbeitswerkzeug an einem Baggerausleger befestigt werden kann. Dazu sind am Baggerausleger zwei Paare ausfahrbarer Bolzen vorgesehen, die in entsprechende Ausnahmeöffnungen am Arbeitswerkzeug eingreifen. Für das Kuppeln der Hydraulikleitungen ist an einem Verriegelungsbolzen ein Bauteil angebaut, der das Ende eines Hydraulikschlauches trägt, das mit einem Gegenstück am Arbeitsgerät in Eingriff kommen soll, wenn der Verriegelungsbolzen betätigt wird.In the EP-B-0 743 998 a coupling is described with which a working tool can be attached to an excavator boom. For this purpose, two pairs of extendable bolts are provided on the excavator boom, which engage in corresponding exception openings on the working tool. For the coupling of the hydraulic lines, 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.

In der EP-A-0 963 688 A2 ist eine Vorrichtung beschrieben, die hydraulisch betätigbare Verriegelungslemente aufweist, und bei der eine Fluidkupplung vorgesehen ist. Irgendwelche funktionelle Bezugnahmen der hydraulisch betätigten Verriegelungselemente und der Fluidkupplung ist nicht offenbart.In the EP-A-0 963 688 A2 a device is described which has hydraulically actuatable Verriegelungslemente, and wherein a fluid coupling is provided. Any functional references of the hydraulically-actuated locking elements and the fluid coupling are not disclosed.

Eine Vorrichtung der eingangs genannten Gattung und gemäß dem Oberbegriff aus Anspruch 1, umfassend eine Schnellwechselvorrichtung und eine Anbauplatte, bei welcher beim Befestigen eines Anbaugerätes am freien Ende eines Baggerauslegers das Verbinden der zum Anbaugerät führenden Hydraulikleitungen selbsttätig erfolgt, ist aus der AT 008 623 U2 oder der EP 1 840 276 A2 bekannt.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.

Die bekannte Vorrichtung hat sich gut bewährt, es ist jedoch manchmal problematisch, dass bei der aus AT 008623 U2 oder der EP 1 840 276 A bekannten Vorrichtung der Block mit den Kupplungssteckern aus einem Plungergehäuse herausgeführt wird, wobei an dem Plungergehäuse die vom Bagger kommenden Hydraulikleitungen angeschlossen sind. Zum Verstellen des Blocks mit den Kupplungsmuffen ist dieser mit den Riegeln, über welche die Schnellwechselvorrichtung mit der Anbauplatte verbunden wird (indem die Riegel von einem Verriegelungszylinder vorgeschoben werden), verbunden.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).

Der Erfindung liegt die Aufgabe zugrunde, eine einfachere Konstruktion einer Vorrichtung zum Befestigen von Anbaugeräten an Baggerauslegern mit einer Schnellwechselvorrichtung und einer Anbauplatte zur Verfügung zu stellen.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.

Gelöst wird diese Aufgabe erfindungsgemäß mit einer Vorrichtung, welche die Merkmale von Anspruch 1 aufweist.This object is achieved according to the invention with a device having the features of claim 1.

Bevorzugte und vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Preferred and advantageous embodiments of the invention are the subject of the dependent claims.

Bei der erfindungsgemäßen Vorrichtung zum Verbinden der am Baggerausleger befestigten Schnellwechselvorrichtung mit der mit dem Anbaugerät verbundenen Anbauplatte ist nach wie vor ein selbsttätiges Kuppeln der wenigstens einen zum Anbaugerät führenden Hydraulikleitung vorgesehen. Diese Hydraulikkupplung wird beim Festlegen der Anbauplatte an der mit dem Baggerausleger verbundenen Schnellwechselvorrichtung aktiviert (wenigstens eine Hydraulikkupplung wird geschlossen). So ist gewährleistet, dass beim Befestigen des Anbaugerätes mit Hilfe der erfindungsgemäßen Vorrichtung der wenigstens eine im Anbaugerät vorgesehene Hydraulikantrieb (Hydraulikzylinder) mit wenigstens einer vom Bagger zur Schnellwechselvorrichtung führenden Leitung für Hydraulikmedium ohne zusätzliche Maßnahme verbunden wird.In the device according to the invention for connecting the quick-change device attached to the excavator boom with the attachment plate connected to the attachment, 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.

Bei der Erfindung besteht die Möglichkeit, die an den Längsseiten vorgesehenen Hydraulikkupplungen für den Anschluss eines Hydraulikhammers und die in der Symmetrieebene vorgesehen Hydraulikkupplung für den Anschluss eines Böschungslöffels zu verwenden.In the invention, it is possible to use the hydraulic couplings provided on the longitudinal sides for the connection of a hydraulic hammer and the hydraulic coupling provided in the plane of symmetry for the connection of an embankment spoon.

Von Vorteil ist bei der Erfindung, dass die Blöcke mit den Hydraulikanschlüssen von Hydraulikzylindern (für gewöhnlich auf jeder Seite der Schnellwechselvorrichtung einer), die an der Schnellwechselvorrichtung befestigt sind, betätigt werden. Dadurch fallen Dichtungsprobleme bei der aus der AT 008 623 U2 bekannten Ausführungsform, bei welcher das Hydraulikmedium über des Plungergehäuse geführt wird, weg, da die wenigstens eine Hydraulikleitung, die vom Bagger kommt, unmittelbar zu dem Block mit den Hydraulikanschlüssen (Kupplungsstecker) führt, also die bei der bekannten Vorrichtung vorgesehenen Plunger entbehrlich sind.It is advantageous in the invention that 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. 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.

Bei der Erfindung ist vorgesehen, dass die Hydraulikkupplungen jeweils einen an der Schnellwechselvorrichtung verschiebbaren Block, der Kupplungsstecker trägt, und einen an der Anbauplatte befestigten Block, der Kupplungsmuffen trägt, aufweist.In the invention, it is provided that 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.

Zum Betätigen der Hydraulikkupplungen sind erfindungsgemäß zumindest drei Kupplungszylinder vorgesehen.For actuating the hydraulic clutches, at least three clutch cylinders are provided according to the invention.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass die Hydraulikkupplung durch Hydraulikmedium, das einen Verriegelungszylinder beaufschlagt, oder einen Riegel, der in der Verriegelungsvorrichtung verschiebbar ist, betätigt, betätigbar ist.In one embodiment of the invention it can be provided that the hydraulic clutch is actuated by hydraulic medium which acts on a locking cylinder or a bolt which is displaceable in the locking device.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass an einem der Blöcke wenigstens ein Führungsstift und am anderen der Blöcke wenigstens ein Führungsloch für den Eingriff der Führungsstifte vorgesehen ist.In one embodiment of the invention it can be provided that 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.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass die Kupplungszylinder nach dem Vorschieben der Riegel mit Hilfe eines Verriegelungszylinders betätigbar sind. In einer Ausführungsform der Erfindung kann vorgesehen sein, dass die Kupplungszylinder beim Überschreiten eines vorgegebenen Wertes des Drucks des Hydraulikmediums im Verriegelungszylinder betätigbar sind.In one embodiment of the invention can be provided that the clutch cylinder after advancing the bolt by means of a locking cylinder can be actuated. In one embodiment of the invention can be provided that the clutch cylinders are actuated when a predetermined value of the pressure of the hydraulic medium in the locking cylinder.

Erfindungsgemäß sind zwei Blöcke an den Längsseiten der Anbauplatte vorgesehen.According to the invention, two blocks are provided on the longitudinal sides of the mounting plate.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass jeder Block innerhalb einer an der Anbauplatte befestigten Riegelaufnahme angeordnet ist.In one embodiment of the invention, it may be provided that each block is arranged within a bolt receptacle fastened to the mounting plate.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass ein 6/2 Wegeventil vorgesehen ist, das nach dem Schließen der Hydraulikkupplung den Hydraulikkreis zu einem an der Anbauplatte angeordneten Anbaugerät umleitet.In one embodiment of the invention can be provided that 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.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass beim Lösen der Verbindung zwischen Anbauplatte und Schnellwechselvorrichtung über das 6/2 Wegeventil zunächst der Kupplungszylinder beaufschlagt wird, um die Hydraulikkupplung zu öffnen und dass der Verriegelungszylinder beim Überschreiten eines vorgegebenen Druckes im Hydraulikkreis zum Zurückziehen der Riegel mit Hydraulikmedium beaufschlagt ist.In one embodiment of the invention can be provided that when releasing the connection between mounting plate and quick-change device via the 6/2 way valve first of the clutch cylinder is acted to open the hydraulic clutch and that the locking cylinder when exceeding a predetermined pressure in the hydraulic circuit to retract the bolt is acted upon by hydraulic medium.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass die Riegelführung an der Schnellwechselvorrichtung und/oder die Riegelaufnahme an der Anbauplatte eine unterbrechungsfreie Öffnung aufweist.In one embodiment of the invention can be provided that the bolt guide on the quick-change device and / or the bolt receptacle on the mounting plate has an uninterruptible opening.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass Schutzvorrichtungen vorgesehen sind, die über Kupplungsstecker der Hydraulikkupplungen anbringbar sind.In one embodiment of the invention can be provided that protective devices are provided, which are attachable via coupling plug of the hydraulic clutches.

In einer Ausführungsform der Erfindung kann vorgesehen sein, dass die Schutzvorrichtungen an der Anbauplatte angeordnet sind, und bei an der Schnellwechselvorrichtung befestigter Anbauplatte den Kupplungssteckern diese abdeckend zugeordnet sind.In one embodiment of the invention can be provided that 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.

Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus der nachstehenden Beschreibung bevorzugter Ausführungsbeispiele anhand der Zeichnungen.Further details and features of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.

Es zeigt:

  • Fig. 1 eine erfindungsgemäße Vorrichtung mit Schnellwechselvorrichtung und Anbauplatte,
  • Fig. 2 eine Einzelheit der Vorrichtung aus Fig. 1 (linke Seite) in vergrößertem Maßstab bei offener Hydraulikkupplung,
  • Fig. 3 eine Einzelheit aus Fig. 1 (rechte Seite) bei geschlossener Hydraulikkupplung, bei welcher die Kupplungsstecker mit den Kupplungsmuffen verbunden sind,
  • Fig. 4 eine Einzelheit der Vorrichtung im Bereich einer weiteren Hydraulikkupplung und
  • Fig. 5 die Einzelheit aus Fig. 4 in anderer Ansicht.
It shows:
  • Fig. 1 an inventive device with quick-change device and mounting plate,
  • Fig. 2 a detail of the device Fig. 1 (left side) on an enlarged scale with the hydraulic clutch open,
  • Fig. 3 a detail Fig. 1 (right side) with closed hydraulic clutch, in which the coupling plug are connected to the coupling sleeves,
  • Fig. 4 a detail of the device in the field of another hydraulic coupling and
  • Fig. 5 the detail Fig. 4 in another view.

Eine in Fig. 1 gezeigte Vorrichtung 1 umfasst eine Schnellwechselvorrichtung 3, die am freien Ende eines (nicht gezeigten) Baggerauslegers oder dgl. angeordnet ist, und eine Anbauplatte 5, die mit einem Anbaugerät, z.B. einem Hydraulikhammer oder einem Böschungslöffel (nicht gezeigt), verbunden ist. Durch vor- und zurückschiebbare Riegel 7, die beispielsweise keilförmig ausgebildet, und in eine entsprechend geformte Riegelaufnahme 9 an der Anbauplatte 5 einschiebbar sind, sowie über an der Schnellwechselvorrichtung 3 vorgesehene starre Haken, die hinter eine Kupplungsstange 13 (Aufnahmebolzen) an der Anbauplatte 5 eingreifen, kann die Anbauplatte 5 an der Schnellwechselvorrichtung 3 festgelegt werden.An in Fig. 1 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). By forward and zurückschiebbare latch 7, which are for example wedge-shaped, and in a correspondingly shaped latch receptacle 9 on the mounting plate 5 are inserted, and provided on the quick-change device 3 rigid hooks, which engage behind a coupling rod 13 (locating bolts) on the mounting plate 5 , the mounting plate 5 can be fixed to the quick-change device 3.

Zum Verstellen der Riegel 7, die beispielsweise in einem kastenartigen Aufnahmeraum der Schnellwechselvorrichtung 3 vorgesehen sind, ist als Verriegelungszylinder ein Druckmittelzylinder, vorzugsweise ein Hydraulikzylinder, vorgesehen und mit den Riegeln 7 gekuppelt. Durch Betätigen des Verriegelungszylinders 10 können die Riegel 7 durch eine Riegelführung in ihre in Fig. 1 gezeigte Wirkstellung, in der sie in die Riegelaufnahme 9 an der Anbauplatte 5 des Anbaugerätes eingreifen, verschoben werden und verbinden das Anbaugerät sicher mit der Schnellwechselvorrichtung 3.To adjust the latch 7, which are provided for example in a box-like receiving space of the quick-change device 3, as a locking cylinder, a pressure medium cylinder, preferably a hydraulic cylinder, provided and coupled with the bolts 7. By pressing the locking cylinder 10, 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. 3

Aus Fig. 1 ist ersichtlich, dass zu der Schnellwechselvorrichtung 3 vom Bagger kommende Hydraulikleitungen führen, die an einen Block 21 angeschlossen sind, an dem Kupplungsstecker 23 montiert sind. Der Block 21 ist an der Kolbenstange 19 eines an der Schnellwechselvorrichtung 3 montierten Hydraulikzylinders 17 der Kupplungszylinder montiert. Dabei ist vorgesehen, dass zunächst der die Riegel 7 betätigende Verriegelungszylinder 10 der Schnellwechselvorrichtung 3 mit Hydraulikmedium beaufschlagt wird, um den Riegel 7 bzw. die Riegel 7 auszufahren, sodass die Anbauplatte 5 des Arbeitsgerätes mit der Schnellwechselvorrichtung 3 gekuppelt wird. Sobald beim Beaufschlagen des Verriegelungszylinders 10 ein vorgegebener Druck, beispielsweise ein Druck von 120 bar, erreicht wird, werden über ein Druckfolgeventil die Hydraulikzylinder 17 mit Hydraulikmedium beaufschlagt. Die Kolbenstangen 19 der Hydraulikzylinder 17 fahren aus und stellen die Verbindung zwischen den Kupplungssteckern 23, die am Block 21 befestigt sind, und Kupplungsmuffen 29, die an einem, an der Anbauplatte 5 montierten Block 27 angeordnet sind, her, so dass die Hydraulikkupplungen 20 geschlossen sind. Der Block 27 mit den Kupplungsmuffen 29 ist an der Anbauplatte 5 angeordnet. Von dem die Kupplungsstecker 23 tragenden Block 21 stehen im Ausführungsbeispiel zwei Führungsstifte 25 ab, die bei geschlossener Hydraulikkupplung 20 in Führungslöcher in dem die Kupplungsmuffen 29 tragenden Block 27 eingreifen.Out 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. It is provided that 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. As soon as a predetermined pressure, for example a pressure of 120 bar, is reached when the locking cylinder 10 is acted upon, 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.

Der Block 27 mit den Kupplungsmuffen 29 ist an der Anbauplatte 5 befestigt.The block 27 with the coupling sleeves 29 is attached to the mounting plate 5.

Um den Block 21 sicher zu führen, ist ein Führungsbolzen 31 vorgesehen.To guide the block 21 securely, a guide pin 31 is provided.

Am Block 21 sind Anschlüsse 33 für die vom Bagger kommenden Hydraulikleitungen vorgesehen.At block 21 ports 33 are provided for coming from the excavator hydraulic lines.

Die zum Werkzeug führenden Hydraulikleitungen gehen von Anschlüssen 34 aus, die am Block 27 vorgesehen sind.The hydraulic lines leading to the tool start from connections 34 which are provided at block 27.

In dem in den Fig. 1 bis 3 gezeigten Ausführungsbeispiel ist vorgesehen, dass Hydraulikkupplungen zwischen vom Bagger kommenden Hydraulikleitungen und zu dem Anbaugerät, z. B. dem Hydraulikhammer, führenden Hydraulikleitungen an beiden (Längs-)Seiten der Vorrichtung 1 vorgesehen sind, wie dies in Fig. 1 angedeutet ist.In the in the Fig. 1 to 3 shown embodiment, it is provided that hydraulic clutches between coming from the excavator hydraulic lines and to the attachment, z. As the hydraulic hammer, leading hydraulic lines are provided on both (longitudinal) sides of the device 1, as shown in Fig. 1 is indicated.

Bei der in den Fig. 4 und 5 gezeigten Ausführungsform einer weiteren, in der erfindungsgemäßen Vorrichtung 1 vorgesehenen Hydraulikkupplung 40 ist für das Betätigen der Hydraulikkupplung 40 zwischen vom Bagger zur Schnellwechselvorrichtung 3 führenden Hydraulikleitungen 41 und Hydraulikleitungen 43, die zum Anbaugerät, z. B. einem Böschungslöffel, führen, ein eigener Kupplungszylinder 45 vorgesehen.In the in the Fig. 4 and 5 shown embodiment of another, provided in the device 1 according to the invention 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. As a slope ladle lead, a separate clutch cylinder 45 is provided.

Dabei ist vorgesehen, dass zunächst der die Riegel 7 betätigende Verriegelungszylinder 10 der Schnellwechselvorrichtung 3 mit Hydraulikmedium beaufschlagt wird, um den Riegel 7 bzw. die Riegel 7 auszufahren, sodass die Anbauplatte 5 des Arbeitsgerätes mit der Schnellwechselvorrichtung 3 gekuppelt wird. Sobald beim Beaufschlagen des Verriegelungszylinders 10 ein vorgegebener Druck, beispielsweise ein Druck von 120 bar, erreicht wird, wird über ein Druckfolgeventil der Kupplungszylinder 45 mit Hydraulikmedium beaufschlagt. Die Kolbenstange 47 des Kupplungszylinders 45 fährt aus und stellt die Verbindung zwischen den Kupplungssteckern 23, die an der Kolbenstange 47 des Kupplungszylinders über einen Block 49 befestigt sind, und Kupplungsmuffen 29, die an einem, an der Anbauplatte 5 montieren Block 51 angeordnet sind, her. Der Block 51 mit den Kupplungsmuffen 29 ist bei an der Schnellwechselvorrichtung 3 festgelegter Anbauplatte 5 in die Riegelaufnahme 9 an der Anbauplatte 5 eingreifend angeordnet. Von dem die Kupplungsstecker 23 tragenden Block 49 stehen im Ausführungsbeispiel zwei Führungsstifte 25 ab, die bei geschlossener Hydraulikkupplung 40 in Führungslöcher 31 in dem die Kupplungsmuffen 29 tragenden Block 51 eingreifen.It is provided that 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. As soon as a predetermined pressure, for example a pressure of 120 bar, is reached when the locking cylinder 10 is acted upon, 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.

Der Block 51 mit den Kupplungsmuffen 29 ist an der Anbauplatte 5 befestigt.The block 51 with the coupling sleeves 29 is attached to the mounting plate 5.

Zu dem mit der Kolbenstange 47 des Kupplungszylinders 45 verbundenen Block 49 führen zwei Hydraulikleitungen 15 und von dem Block 51 an der Anbauplatte 5 führen zwei weitere Leitungen 43 weg, über die ein im Anbaugerät, z. B. in ein Böschungslöffel diesem vorgesehener Hydraulikzylinder, mit Hydraulikmedium beaufschlagt wird.To the connected to the piston rod 47 of the clutch cylinder 45 block 49 lead two hydraulic lines 15 and of the block 51 on the mounting plate 5 lead two more lines 43 away, on the one in the attachment, z. B. in a slope level of this proposed hydraulic cylinder is acted upon by hydraulic medium.

In einer bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung 1 wird nach dem Schließen der Hydraulikkupplung 40 bei der Ausführungsform der Vorrichtung gemäß den Fig. 4 und 5 nach dem Schließen der Hydraulikkupplung 40 unter der Wirkung des Kupplungszylinders 45 über ein 6/2 Wegeventil 55, das elektromagnetisch gesteuert wird, der Hydraulikkreis zum Zylinder des Böschungslöffels umgeleitet.In a preferred embodiment of the device 1 according to the invention 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.

Wenn die erfindungsgemäßen Vorrichtung 1 Anbaugeräte ohne eigenen Hydraulikantrieb, wie dieser bei Hydraulikhämmern oder Böschungslöffeln vorgesehen ist, verwendet wird, ist vorgesehen, dass über die an der Schnellwechselvorrichtung 3 vorgesehenen Kupplungsstecker 23 Schutzelemente gesteckt sind. Solche Schutzelemente können an der Anbauplatte 3 dort angeordnet sein, wo in dem gezeigten Ausführungsbeispiel die Blöcke 27 bzw. 51 mit Kupplungsmuffen 29 angeordnet sind.If 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.

Bei der Erfindung sind an der Vorrichtung 1 sowohl Hydraulikkupplungen 20 wie sie an Hand der Fig. 2 und 3 beschrieben worden sind, als auch Hydraulikkupplungen 40 wie sie an Hand der Fig. 4 und 5 beschrieben worden sind, gemeinsam verwirklicht.In the invention, both hydraulic couplings 20 as they are on hand of the device 1 Fig. 2 and 3 have been described, as well as hydraulic couplings 40 as they are on hand of Fig. 4 and 5 have been described, realized together.

Dabei sind an beiden Seiten der Vorrichtung Hydraulikkupplungen 20 für den an Hand der Fig. 2 und 3 beschriebenen Anschluss (eines Hydraulikhammers) und die z. B. in der Mitte der Vorrichtung 1 angeordnete Hydraulikkupplung 40 der Fig. 4 und 5 für einen Böschungslöffel vorgesehen.In this case, on both sides of the device hydraulic couplings 20 for the on hand Fig. 2 and 3 described connection (a hydraulic hammer) and the z. B. in the middle of the device 1 arranged hydraulic coupling 40 of Fig. 4 and 5 intended for a slope spoon.

Zusammenfassend kann ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung wie folgt beschrieben werden:

  • An einer Vorrichtung 1 zum Verbinden von Anbaugeräten mit einem Baggerausleger bestehend aus einer am Baggerausleger befestigten Schnellwechselvorrichtung 3 und einer am Anbaugerät befestigten Anbauplatte 5 sind wenigstens drei Kupplungen 20, 40 für das Verbinden von vom Bagger kommenden Hydraulikleitungen 15 mit Hydraulikleitungen 16, die zu einem Antriebsmotor (Hydraulikzylinder) in dem Anbaugerät führen. Die wenigstens drei Hydraulikkupplungen 20, 40 werden durch zumindest drei Kupplungszylinder 17, 45 betätigt, nachdem der Verriegelungszylinder 10 die Riegel 7 in ihre Wirkstellung vorgeschoben hat. So ist ohne zusätzliches Verbinden von Hydraulikleitungen beim Festlegen eines Anbaugerätes mit Hilfe der erfindungsgemäßen Vorrichtung 1 an einem Baggerausleger gewährleistet, dass wenigstens ein in einem Anbaugerät verwendeter Hydraulikmotor (Hydraulikzylinder) mit Hydraulikmedium beaufschlagt werden kann.
In summary, an embodiment of the device according to the invention can be described as follows:
  • To a device 1 for connecting attachments with an excavator boom consisting of an attached to the excavator boom quick-change device 3 and attached to the attachment mounting plate 5 are at least three clutches 20, 40 for connecting coming from the excavator hydraulic lines 15 with hydraulic lines 16 to a drive motor (Hydraulic cylinder) in the attachment. The at least three hydraulic clutches 20, 40 are actuated by at least three clutch cylinders 17, 45, after the locking cylinder 10 has advanced the latch 7 in its operative position. So is without Additional connection of hydraulic lines when securing an attachment using the device 1 according to the invention on an excavator boom ensures that at least one hydraulic motor (hydraulic cylinder) used in an attachment can be loaded with hydraulic medium.

Claims (3)

  1. Device (1) for connecting an attachment device to an excavator boom with a quick-changing device (3) that can be fastened to the excavator boom, in which bolts (7) are displaceable, with an attachment plate (5) that can be fastened to the attachment device, wherein the quick-changing device (3) and the attachment plate (5) can be securely connected through the bolts (7), and with hydraulic couplings (20, 40), with which hydraulic lines (15, 41) coming from the excavator can be connected to hydraulic lines (16, 43) which lead to at least one hydraulic motor in the attachment device, wherein a hydraulic coupling (40) is arranged in the symmetry plane of the device (1) and two further hydraulic couplings (80) are provided on the longitudinal sides of the device (1), wherein each hydraulic coupling (20, 40) comprises a block (27, 51) with coupling sleeves (29) fastened to the attachment plate (5), wherein for actuating the hydraulic coupling (40) arranged in the symmetry plane a first coupling cylinder (44) is provided, characterized in that for actuating the hydraulic couplings (20) provided on the longitudinal sides of the device a further coupling cylinder (17) each is provided.
  2. Device according to Claim 1, characterized in that two blocks (27) are provided on the attachment plate (5) on the longitudinal sides of the device (1).
  3. Device according to Claim 1 or 2, characterized in that the block (51) with coupling sleeves (29) of the hydraulic coupling (40) provided in the symmetry plane of the device (1) is arranged within a bolt receptacle (9) fastened to the attachment plate (5).
EP10450017A 2009-03-23 2010-02-12 Quick coupler for construction machines Active EP2233642B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0016709U AT11312U1 (en) 2009-03-23 2009-03-23 QUICK COUPLING FOR CONSTRUCTION MACHINES

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EP2233642B1 true EP2233642B1 (en) 2011-09-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2426266B1 (en) 2010-09-07 2018-10-17 Caterpillar Work Tools B. V. A coupling arrangement
EP2426267B1 (en) * 2010-09-07 2020-12-30 Caterpillar Work Tools B. V. A coupling arrangement
AT15844U1 (en) * 2017-01-26 2018-07-15 Baumaschinentechnik Ges M B H Device for attaching attachments to excavator jibs
CN109555177B (en) * 2019-01-25 2023-10-17 北京科技大学 Automatic fast hydraulic switching docking platform
CN115369938A (en) * 2022-09-22 2022-11-22 钱薛飞 Hydraulic excavator with quick-change bucket

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501152C2 (en) * 1993-04-20 1994-11-28 John Teodor Sonerud Device for rapid coupling of tool to digging-loading machine - simultaneously connects hydraulic drive system to tool and comprises manoeuvring component for locking and-or retention of tool
EP0975840B1 (en) 1997-04-14 2001-03-07 Baumaschinentechnik Gesellschaft mbH Device for attaching interchangeable items of equipment rapidly, for an excavator
AT2087U1 (en) 1997-04-14 1998-04-27 Baumaschinentechnik Ges M B H QUICK-RELEASE DEVICE FOR EXCAVATORS WITH LOCKING INDICATOR
AT413117B (en) 2003-04-24 2005-11-15 Baumaschinentechnik Ges M B H Mounting plate for quick change device
AT7773U1 (en) * 2004-02-23 2005-08-25 Wimmer Alois Ing ARRANGEMENT FOR CONNECTING ENERGY PIPING, IN PARTICULAR PRESSURE PIPES
DK1580329T3 (en) * 2004-03-25 2013-10-28 Stig Engstroem Implement Quick Coupling Device
DE102004015471A1 (en) * 2004-03-26 2005-10-13 Caterpillar Work Tools B.V. Quick coupler for excavators
AT8080U1 (en) 2004-06-28 2006-01-15 Stern & Hafferl Baugesellschaf TEMPORARY SUPPORT DEVICE
AT8623U3 (en) 2006-03-27 2007-04-15 Baumaschinentechnik Ges M B H DEVICE FOR MOUNTING ATTACHMENTS

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ATE523637T1 (en) 2011-09-15
AT11312U1 (en) 2010-08-15

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