EP2103744A1 - Attache-rapide dotée d'un dispositif destiné à la liaison automatique de conduites énergétiques - Google Patents

Attache-rapide dotée d'un dispositif destiné à la liaison automatique de conduites énergétiques Download PDF

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Publication number
EP2103744A1
EP2103744A1 EP09003530A EP09003530A EP2103744A1 EP 2103744 A1 EP2103744 A1 EP 2103744A1 EP 09003530 A EP09003530 A EP 09003530A EP 09003530 A EP09003530 A EP 09003530A EP 2103744 A1 EP2103744 A1 EP 2103744A1
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EP
European Patent Office
Prior art keywords
carrier
tool
coupling
wedge
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.)
Granted
Application number
EP09003530A
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German (de)
English (en)
Other versions
EP2103744B1 (fr
Inventor
Alois Wimmer
Erich Greisberger
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Individual
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Individual
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Filing date
Publication date
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Publication of EP2103744A1 publication Critical patent/EP2103744A1/fr
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Publication of EP2103744B1 publication Critical patent/EP2103744B1/fr
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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
    • E02F3/364—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
    • E02F3/3654—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 present invention relates to a coupling device with a device for automatically connecting power lines, in particular hydraulic lines, in the attachment of work tools to a tool carrier of a digger boom by means of a quick-change coupling, wherein the quick-change coupling for connecting the tool carrier with the working tool a hook connection and a locking unit with a actuated by an actuator displaceable locking element, wherein on the tool carrier supply fittings and the corresponding Abilleran gleich spokene the work tool are fixed on a support, and wherein the lock connection is closed, the Abilleran gleich foundede connected to the corresponding supply terminals, and are solved with open lock unit from the supply connection pieces.
  • Newer clutch systems try to avoid these disadvantages by integrating not only the quick-change coupling for the tool on the tool carrier but also its own automatic clutch for the hydraulic connections.
  • the supply fittings on the tool carrier are held on a common support structure, such as in the form of a plate, and are in a retracted and protected position when no tool (or a tool without hydraulics) is connected. If a tool with hydraulics to be connected to this system, then the plate is moved out of its retracted position after coupling the tool with its own setting unit, and pressed against corresponding arranged on the tool pick-up fittings so that the connection is made.
  • a quick-change coupling in which the supply fittings are moved on the tool carrier during locking of the quick-change coupling with the locking unit, and thereby engage with the customer Anschlußstüchen which are fixedly mounted on the tool in engagement.
  • the hydraulic connections are located inside the quick-change coupling, between the tool carrier and the tool, so that the space available for the fittings is very limited. Even if, as is the case in the above-mentioned document, only two hydraulic connections are provided, a compact design of the quick-change coupling are set narrow limits when using this system.
  • the utility hydraulic connectors are also actuated by the barrier unit when tools without hydraulics are used. This leads to a fast soiling and wear of the fittings.
  • the present invention overcomes the above drawbacks of the prior art by movably supporting the carrier on the work tool between a forward and a retracted position, the carrier having a driver for engagement with an actuator coupled to the slidable latch and wherein the direction of movement of the carrier corresponds to that of the locking element.
  • the actuator When swinging the quick-change coupling thus the actuator is connected via the locking element, the actuator and the driver element with the carrier and pulls it automatically when locking the locking unit in a position in which the connections are made.
  • a more compact dimensioning of the tool carrier is possible because the moving parts of the hydraulic coupling are not on the tool carrier, but on the tool.
  • supply fittings that are fixedly mounted on the tool carrier can be covered very easily (eg with a protective cap) and are therefore optimally protected against wear, dirt and damage if the excavator is used over a long period without tools having a hydraulic function.
  • the need to supply or secure protruding or hanging hydraulic hoses when using hydraulic-free tool is eliminated. Even a frequent change between tools with and without hydraulics is made easier.
  • By the same direction of movement of the locking element and the carrier a controlled movement is achieved both in terms of the joining of the two power lines as well as the release thereof.
  • the carrier may be mounted with play in relation to the working tool.
  • position tolerances are compensated, which may exist due to contamination or wear between the tool carrier and the tool, since the carrier can automatically adjust when closing the hydraulic coupling to the location of the supply hydraulic connectors on the tool carrier.
  • the carrier may have a substantially plate-shaped base, which along a tool provided on the linear guide, preferably along guide rails, movable and optionally can be set up with alignment pins.
  • the fittings are easy to install, remove, clean and maintain in this way.
  • the guide rails, on which the carrier is guided linearly, allow a substantially parallel displacement of the carrier even with a play-bearing.
  • the carrier may have a substantially plate-shaped base, which is pivotally mounted for connecting or disconnecting the connecting pieces on the working tool. As a result, the space requirement for the carrier can be further reduced.
  • a locking device for holding the carrier in its slaughterbewegten position with uncoupled working tool.
  • the actuating element may in a preferred embodiment have a T-slot, wherein the driving piece may be formed as a matching T-slot T-head.
  • a T-slot connection is particularly insusceptible to tolerances due to tolerances, and allows a self-sliding adjustment of the T-slot coupling, such as when the tool carrier moves with respect to the tool during the locking operation.
  • the driver piece on the carrier with respect to the distance of the T-head can be adjustably mounted by the carrier.
  • a further preferred embodiment of the invention provides that the locking element of the locking unit is designed as a transverse bar flattened in a wedge-shaped manner at least in the region of its ends, to which the actuating unit is attached centrally, wherein the wedge tip (s) runs (runs) parallel to the longitudinal axis of the transverse bar. and is oriented toward the actuator unit, wherein the actuator is secured to the wedge back centrally of the cross bar, and wherein the supply terminals of the tool carrier are arranged above the wedge midplane and behind the wedge back.
  • the advantage of this embodiment is that the supply connectors are arranged on the tool carrier in a protected position, and thereby also do not hinder the coupling of tools that do not have their own hydraulic connectors.
  • FIG. 1 shows Fig. 1 the quick-change coupling according to the invention after pivoting in a sectional view along line II of Fig. 2 with the locking unit unlocked and the hydraulic coupling in an open position
  • Fig. 2 the quick-change coupling of Fig. 1 in plan view
  • Fig. 3 the quick-change coupling in section along line III-III of Fig. 4 in a position in which the hook connection is mounted, but the tool carrier is not pivoted into the closed position
  • Fig. 4 the quick change coupling in the in Fig. 3 reproduced position in plan view
  • Fig. 5 the tool-side part of the quick-change coupling in side view
  • Fig. 6 the same part in plan view
  • Fig. 1 shows Fig. 1 the quick-change coupling according to the invention after pivoting in a sectional view along line II of Fig. 2 with the locking unit unlocked and the hydraulic coupling in an open position
  • Fig. 2 the quick-change coupling of Fig. 1 in plan view
  • Fig. 3
  • FIGS. 5 and 6 illustrated part of the quick-change coupling in perspective view
  • Fig. 8 the part of the quick-change coupling located on the extension arm in side view
  • Fig. 9 the same part in plan view
  • Fig. 10 the in 8 and 9 illustrated part of the quick-change coupling in a perspective view
  • Fig. 11 a side view of the quick-change coupling with hinged hook connection before pivoting to explain the operation of the guide surfaces
  • Fig. 12 the actuator with locking element and actuator in section according to line XII-XII of Fig. 13 in detail
  • Fig. 13 in the Fig. 12 reproduced parts in plan view
  • Fig. 14 the carrier in the diagram
  • Fig. 15 the carrier in plan view
  • Fig. 16 the carrier in section along line XVI-XVI of Fig. 17, and Fig. 17 the carrier in side view.
  • FIG. 1 to 4 the engagement of the quick-change coupling is shown
  • the figures each show the relevant for the coupling elements of a working tool 2, in which the tool carrier 1 engages, which is arranged at the end of an excavator boom.
  • the coupling element of the working tool 2 is in Fig. 5 to 7 shown again without the tool carrier 1, the tool carrier 1 is in the Fig. 8 to 10 shown detached. All figures show only the relevant elements of the invention, in particular, was dispensed with a representation of the excavator boom and the actual tool to give the clarity of the illustrations.
  • the locking unit of the quick coupling which is shown in the figures, ie the quick coupling without the elements for the hydraulic connections, based on an embodiment of a quick-change coupling, the 15.4.2006 in the Austrian patent AT 500 900 A1 and filed by the same applicant as the present invention.
  • the particular advantages that result from this design of Verrieglungsiser a quick-change coupling are in the AT 500 900 A1 described in detail. Since the cited document is published and available to those skilled in the art, the details of the known embodiment are set forth in the present document only to the extent that it appears necessary for understanding and for carrying out the invention.
  • the illustrated and relevant to the invention elements of the tool carrier 1 are essentially the two parallel clutch plates 17, a cylindrical cross-brace 20, each at its ends a suspension bolt 3 (FIGS. 8 and 9 ), an actuating unit 10, a wedge bar 5, an actuating element 13, as well as obliquely above the wedge bar 5 more between the coupling plates 17 fixed supply fittings 6.
  • the actuator 10 consists essentially of a hydraulic cylinder which is attached via a tab 21 on the crossbar 20 is. In order to reduce the bending forces acting on the tab 21, the tab 21 is also supported on the coupling plates 17 via a connecting web 22.
  • the cylinder piston of the actuator 10 starts in the middle of the wedge bar 5, wherein the wedge bar 5 on both sides in a respective guide slot 23 (see FIGS.
  • a closing plate 24 is arranged transversely between the coupling plates 17, which contains the sleeve-like hydraulic supply connection pieces 6.
  • the hydraulic supply ports 6 are connected in the area between the clutch plates 17 to L-pieces, which in turn are connected to the coming of the excavator hydraulic lines (not shown).
  • the actuating element 13 is connected in the middle of the wedge bar 5 with this and protrudes below the end plate 24 of the setting unit 10 pioneering the plane of the end plate 24 also.
  • an open T-slot 28 is introduced on the side facing away from the actuator 10 side, which is arranged substantially tangent to a running path extending about the longitudinal axis of the cylindrical cross-brace 20.
  • the actuator 13 connected to the wedge bar 5 is retracted behind the plane of the end plate 24 when the actuator 10 pulls the wedge bar 5 into the locked position.
  • the two support plates 18 serve as a base.
  • the actual tool (not shown); this could be, for example, a gripper, a tweezers, a milling head, a hammer, a drill, or other special tool suitable for use with an excavator.
  • the support plates 18 are formed in an end region to hooks 3 ', in which the suspension bolts 3 of the tool carrier 1 can be inserted.
  • both support plates 18 have locking lugs 26 with downwardly directed wedge abutment surfaces 16, which serve as a counterhold for the wedge surface of the wedge bar 5 when locking the quick-change coupling.
  • At the hook side opposite end of the support plates 18 widen this upward, and form lateral protection plates 27, between which a protected area is formed, in which the movable parts of the hydraulic coupling are arranged and shielded against external influences.
  • On the side protection plates 27 of the support plates 18 are further on the hook 3 'or to the locking lug 26 and the wedge abutment surface 16 toward side in the lower region depending on a counter-surface 7' and above each a pivoting guide surface 15 'is formed whose function described below.
  • Guide rails 25, on which the carrier 11 slides over lateral recesses 25 'while leaving a clearance, are respectively attached to the insides of the lateral protective plates 27.
  • the guide rails 25 are fastened by screws to the side protection plates 27 adjustable. From the carrier 11 parallel to the protective plates extending over each other two parallel alignment pins 8, by means of which the carrier 11 and thus the Abixiean gleich Swisse 9 are aligned with the supply connectors 6. In the middle region of the carrier 11, through the plate of the carrier through customer connecting pieces 9 and project forward out of the carrier 11 out. At the back of the plate of the carrier 11, the hydraulic connectors 9 are connected via L-pieces with the hydraulic hoses (not shown) of the tool.
  • the carrier 11 may also be biased to the rear, for example by means of their own tension springs or by the elasticity of the guided to the tool hydraulic hoses. It can, as in the Fig. 14-17 reproduced in the plate of the carrier 11 in the recesses 25 'projecting locking elements 30 which cooperate with provided in the guide rails 25 detents may be provided for fixing the carrier in the réellebewegten position. From the front of the carrier 11 protrudes below the forwardly projecting Abilleran gleich Federatione 9 substantially parallel to this provided with a T-head driver piece 12, wherein the T-head of the driver piece 12 for engagement in the T-groove 28 of the tool carrier provided actuating element 13 is formed.
  • the T-head of the driving piece 12 is widened, so that there is a substantially T-shaped horizontal cross section, which is dimensioned so that when folding the quick-change coupling, the T-groove 28 of the actuating element 13 is pushed over the T-head of the driving piece 12 ,
  • the driver piece 12 is adjustably attached to the carrier 11 by means of a threaded piece and two nuts serving as lock nuts
  • FIG. 3 and FIG. 4 the position of the quick-change coupling is shown prior to pivoting of the tool carrier 1 in the coupling part of Häzwerkmaschinees 2, wherein the Ein vonbolzen 3 already hooked into the hook 3 ', the clutch is not yet pivoted into the closed position.
  • the operation of the present invention will be explained below.
  • the tool carrier 1 mounted on the excavator boom is inserted obliquely from above with the suspension bolt 3 in the hook 3 'of the stored or provided working tool 2, wherein the coupling plates 17 of the tool carrier 1 are inserted between the support plates 18 of the tool 2, as in particular in Fig. 2 can be seen.
  • the wedge bar 5 In the direction of arrow, the wedge bar 5 in the unlocked position (ie the piston of the actuator 10 is extended), otherwise the wedge rod 5 abut against the locking lug 26, and would prevent a swiveling in the quick-change coupling.
  • the wedge bar 5 passes through the pivoting into the gap between the locking lug 26 and the lateral protective plate 27 of the tool, wherein the tool carrier is pivoted so far until the counter-surface 7 of the tool carrier abuts the corresponding counter-rear surface 7 'of the tool 2 ( Fig. 1 ).
  • the T-slot 28 of the actuator 13 is pushed onto the T-head of the driver 12, wherein the Einschwenkamba is guided by the Einschwenk guide surfaces 15 and 15 'of the tool carrier and the tool, so that it is not possible to relatively weakly dimensioned T-head of the driving piece 12 during pivoting due to a wrong position of the tool carrier to damage.
  • the two pivoting guide surfaces 15 and 15 ' thus aligned substantially tangentially to a about the pivot axis of the hook connection 3, 3' extending path.
  • the T-slot connection is subjected to only small forces, despite the high loads that occur on the wedge bar, since it only transfers the force required for displacing the carrier and for pushing the customer connection pieces 9 into the supply connection pieces 6 . It is therefore also possible to provide the guide of the carrier 11 on the one hand, and the T-slot connection between the driver 12 and the actuator 13 on the other hand with a considerable game, as the carrier 11 is adjusted by the alignment bolt 8 and thereby, as As stated above, the customer connection pieces 9 automatically aligns with the supply connection pieces 6 located in the end plate 24.
  • the pulling direction of the actuating element 13 does not have to coincide exactly with the direction of movement of the carrier 11, since the T-head of the driving piece 12 can slide in the T-slot 28 due to the low tensile force and thereby compensate for positional tolerances.
  • the actuator 13 When opening the locking unit 4, the actuator 13 exerts pressure on the head of the driver 12, so that the carrier 11 is pushed back to the starting position. As a result, the customer connection pieces 9 are pulled out completely from the supply connection pieces 6 before the wedge bar 5 is pushed back over the end of the wedge contact surface 16 and the tool carrier 1 for releasing the quick-change coupling about the pivot axis of the hook connection 3, 3 'from the connection with the working tool. 2 can be folded out.
  • the carrier 11 In the Swissbewegten position, the carrier 11 is held by the corresponding recesses in the guide rails 25 incident latching members 30, thereby avoiding that the carrier 11 unintentionally moved out of its rest position and protrudes into the Einschwenkbahn the end plate 24, which can lead to damage to the fittings of the hydraulic lines when pivoting the tool carrier 1.
  • the carrier 11 may be biased by springs to the rear, so that the carrier is withdrawn when releasing the locking unit 4, without the need to compressive forces on the driver 12 must be transmitted.
  • the guidance of the carrier 11 along guide rails 25 shown in the figures represents a preferred embodiment of the invention, but it is also possible to pivotally mount the carrier between the support plates 18 so that the carrier "folds" onto the end plate 24 when the wedge lock is closed. becomes.
  • Which embodiment is actually preferred in each case depends in particular on the design of the supply and customer connections.
  • the device according to the invention not only for hydraulic, but also for other connections, e.g. for electrical or pneumatic connections.

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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)
EP09003530A 2008-03-20 2009-03-11 Attache-rapide dotée d'un dispositif destiné à la liaison automatique de conduites énergétiques Active EP2103744B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0044308A AT506554B1 (de) 2008-03-20 2008-03-20 Kupplungsvorrichtung mit einer einrichtung zum automatischen verbinden von energieleitungen

Publications (2)

Publication Number Publication Date
EP2103744A1 true EP2103744A1 (fr) 2009-09-23
EP2103744B1 EP2103744B1 (fr) 2012-10-03

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EP09003530A Active EP2103744B1 (fr) 2008-03-20 2009-03-11 Attache-rapide dotée d'un dispositif destiné à la liaison automatique de conduites énergétiques

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Country Link
US (1) US7963054B2 (fr)
EP (1) EP2103744B1 (fr)
AT (1) AT506554B1 (fr)

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DE102014002376B3 (de) * 2013-12-18 2015-04-02 Thomas Mösl Automatisches Kupplungssystem und Fahrzeug mit einem solchen Kupplungssystem

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KR101425075B1 (ko) 2013-07-10 2014-08-04 대모 엔지니어링 주식회사 퀵 체인지 결합방식을 갖는 중장비 어태치먼트 구조체
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EP2902582B2 (fr) * 2014-01-29 2022-12-28 BAUER Maschinen GmbH Système de mât et procédé de fixation d'un outil de travail au rail de coulissage du mât
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EP3070207B1 (fr) 2015-03-17 2018-04-18 Giovanni Andrina Ensemble constitué d'un outil, un appareil de manipulation et un dispositif de couplage rapide entre l'outil et l'appareil
WO2017175252A1 (fr) 2016-04-07 2017-10-12 Giovanni Battista Andrina Ensemble pour travaux, composé d'un outil, d'un appareil de manipulation et d'un dispositif de couplage rapide entre l'outil et l'appareil
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DE102004037459A1 (de) * 2004-08-02 2006-02-23 Liebherr-Hydraulikbagger Gmbh Hydraulikschnellkupplung
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AT506554B1 (de) 2011-11-15
US7963054B2 (en) 2011-06-21
AT506554A1 (de) 2009-10-15
EP2103744B1 (fr) 2012-10-03
US20090255151A1 (en) 2009-10-15

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