EP3548671B1 - Erdbewegungsmaschine mit einer schnelllösevorrichtung und einem umkehrbaren adapter für einen löffel - Google Patents

Erdbewegungsmaschine mit einer schnelllösevorrichtung und einem umkehrbaren adapter für einen löffel Download PDF

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Publication number
EP3548671B1
EP3548671B1 EP17816931.4A EP17816931A EP3548671B1 EP 3548671 B1 EP3548671 B1 EP 3548671B1 EP 17816931 A EP17816931 A EP 17816931A EP 3548671 B1 EP3548671 B1 EP 3548671B1
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EP
European Patent Office
Prior art keywords
quick
release device
reversible adapter
ramps
adapter
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
EP17816931.4A
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English (en)
French (fr)
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EP3548671A1 (de
Inventor
Xavier PINGRET
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.)
Arden Equipment
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Arden Equipment
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Publication date
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Publication of EP3548671A1 publication Critical patent/EP3548671A1/de
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Publication of EP3548671B1 publication Critical patent/EP3548671B1/de
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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
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—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
    • E02F3/3663—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 an earthmoving machine with a quick coupler device and a reversible bucket adapter.
  • Such an earth-moving machine is able to work in retro mode and in chouleur mode.
  • the reversible adapter is fixed to the bucket, and has two broaching axes, parallel to each other, suitable for being gripped by the quick coupler device in the two opposite orientations of the bucket, to work both in reverse mode with the opening of the bucket towards the machine, only in chouleur mode with the opening of the bucket opposite the machine.
  • This machine comprises an adapter essentially consisting of two parallel side plates, connected by two broaching pins. Once in place on the bucket, the adapter receives on one of its axes the hooks of the quick coupler and on the other axis on the one hand, the support of the end of the quick coupler opposite the hooks, and on the other hand, a fixing lock.
  • one of the two axles combines two distinct functions in reverse mode, recovery of crowding forces and locking. Consequently, if a defect appears (positioning, deformation, wear, etc.) on the axis in question, it can simultaneously result in a harmful consequence on the two functions.
  • One of the aims of the invention is to provide an earth-moving machine with a quick-attach device and a reversible adapter that does not have the aforementioned drawback.
  • Another object of the invention is to provide an earth-moving machine with a quick-attach device and a reversible adapter, having a distribution of mechanical forces favorable to its operating safety.
  • the subject of the invention is an earth-moving machine, with a quick-attach device and a reversible adapter for a bucket, comprising an operating arm at the end of which the quick-attach device is able to be fixed, said quick-attach device comprising two so-called front hooks, arranged symmetrically with respect to a vertical plane passing through the longitudinal axis of the operating arm and called the reference plane, and a so-called rear lock movable in the said reference plane, the reversible adapter comprising two side plates symmetrical with respect to said reference plane and connected by two broaching axes perpendicular to said plane of symmetry, characterized in that the quick coupling device and the reversible adapter each comprise at least two inclined ramps, the inclined ramps of the quick coupler being in reciprocal support on the inclined ramps of the reversible adapter.
  • the inclined ramps of the quick-attach device are two in number and arranged symmetrically, on either side of the lock, the plane of inclination of the two ramps passing below the hooks .
  • the inclined ramps of the reversible adapter are four in number, two on each side plate of the reversible adapter.
  • the two inclined ramps of each side plate of the reversible adapter are symmetrical to each other and also inclined to the plane defined by the geometric axes of the broaching axes.
  • the angle of inclination of the inclined ramps on the plane defined by the geometric axes of the broaching axes is between 5 and 45° and preferably 20°.
  • the inclined ramps of the quick-attach device have the same inclination as the inclined ramps of the reversible adapter with which they are in reciprocal support.
  • the invention also relates to a quick coupler device for earthmoving machinery with a bucket maneuvering arm, comprising two so-called front hooks, and a so-called rear lock, characterized in that it comprises two inclined ramps arranged symmetrically on either side of the lock, the plane of inclination of the two ramps passing below the hooks.
  • the so-called rear lock is a spring-loaded or cylinder-loaded lock.
  • Another subject of the invention is a reversible adapter for an earth-moving machine with a bucket maneuvering arm, comprising two side plates connected by two broaching axes perpendicular to the said planes of the side plates, characterized in that it comprises, on each side plates, two ramps inclined with respect to the plane defined by the geometric axes of the broaching axes.
  • the two inclined ramps of each side plate are mutually symmetrical and also inclined on the plane defined by the geometric axes of the broaching axes.
  • the angle of inclination of the inclined ramps on the plane defined by the geometric axes of the broaching axes is between 5 and 45°.
  • this angle of inclination is 20°.
  • each of the broaching axes has, in its central zone, a planar surface for guiding the locking means of a quick-attach device on the reversible adapter.
  • Another subject of the invention is an assembly for an earth-moving machine with a bucket maneuvering arm, said assembly comprising a quick coupler device capable of being fixed to the end of the maneuvering arm of the machine and an adapter reversible adapted to be coupled to the bucket, said reversible adapter comprising two side plates connected by two broaching axes perpendicular to the planes of the side plates, said quick coupler device comprising two so-called front hooks, and a so-called rear lock, the front hooks of the quick-attach device being intended to receive one of the pin pins of the reversible adapter, the rear lock being intended to be inserted under the other pin pin of the reversible adapter in the fixed state of the reversible adapter to the quick-attach device, characterized in that the quick-attach device and the reversible adapter each comprise at least two inclined ramps, the inclined ramps of the quick-attach device resting on the inclined ramps from the reversible adapter in the attached state from the reversible adapt
  • the reversible adapter is of the aforementioned type.
  • the quick-attach device is of the aforementioned type.
  • An earthmoving machine 1 with an operating arm 2 and a bucket 3 is equipped in retro mode when the opening of the bucket 3 is turned towards the machine 1 ( figure 1 ), and in chouleur mode when the opening of bucket 3 is oriented away from machine 1 ( figure 2 ).
  • Bucket 3 ( picture 3 ) is equipped with a reversible adapter 4 which allows the quick-attach device 5 ( figure 4 ) fixed at the end of the arm 2 maneuver, to enter the bucket 3 in each of the two positions corresponding to the retro and chouleur modes.
  • the reversible adapter 4 essentially consists in a conventional manner of two side plates 6, 7 and two axes 8, 9 of broaching.
  • the side plates 6, 7 are symmetrical to each other with respect to the vertical reference plane of the machine 1.
  • This reference plane is a vertical plane passing through the longitudinal axis of the maneuvering arm 2.
  • the side plates 6, 7 are interconnected by the two broaching axes 8, 9, which are perpendicular to the reference plane and to the plane of the side plates 6, 7.
  • the geometric axes of the broaching axes 8, 9 define a plane 10.
  • the two broaching axes 8, 9 are symmetrical to one another with respect to the median plane 11 perpendicular to the plane 10 connecting their geometric axes.
  • the structure of the reversible adapter 4 conventionally comprises reinforcements 12 and means for fixing to the cup 3.
  • each side plate 6, 7 carries, towards the inside of the adapter 4, a pair of inclined ramps, or stops, respectively 13, 14 and 15, 16.
  • the ramps of the same pair, 13, 14 on the one hand and 15, 16 on the other hand, are symmetrical to each other by relative to the median plane 11.
  • the pairs of ramps 13, 14 and 15, 16 are symmetrical to each other relative to the reference plane of the machine 1.
  • the ramps 13 to 16 have an inclination of between 5 and 45°, more precisely between 10 and 30°, and preferably of 20°.
  • the ramps 13 to 16 define a dihedral, open towards the broaching axes and having an opening angle of 140°.
  • the reversible adapter 4 can be obtained by mechanically welded assembly or by molding.
  • the ramps 13 to 16 are mechanically linked to the side plates.
  • the quick-attach device 5 is carried by the end of the arm 2 of the machine 1. Conventionally, it comprises so-called front hooks 17 and a so-called rear lock 18.
  • the front hooks 17 are arranged symmetrically with respect to the reference plane of the machine, in the coupled state of the quick-attach device 5 to the operating arm 2, and are intended to receive one of the broaching axes 8, 9 of the reversible adapter 4.
  • the rear lock 18 is intended to be inserted under the other broaching axis to ensure the locking of the quick-attach device 5 on the reversible adapter 4.
  • the quick-attach device 5 comprises two ramps inclined 19, 20, intended to cooperate with the inclined ramps of the adapter 4 by reciprocal support.
  • engine 1 works in retro mode.
  • Bucket 3 and reversible adapter 4 are in the situation of the picture 3 .
  • the quick-attach device 5 has its hooks 17 engaged on the broaching axis 8 of the reversible adapter 4, and its latch 18 in the locking position under the broaching axis 9.
  • machine 1 works in chouleur mode.
  • the hooks 17 of the quick-attach device are engaged on the broaching axis 9 of the reversible adapter 4 and the lock 18 is in locking position under broaching axis 8.
  • the inclined ramps 19, 20 of the quick-attach device 5 rest respectively on the ramps 13 and 15 of the reversible adapter 4.
  • the reciprocal support of the inclined ramps 19, 20 of the quick-attach device 5 on the inclined ramps 16, 14, or 13, 15 respectively, of the reversible adapter 4 ensures transmission of the mechanical forces on the inclined ramps and not on the broaching axis as in the adapters of the prior art. This results in a better flow of mechanical stresses in the structure of the bucket, resulting in better resistance of the earthmoving equipment to cyclic loadings. This also results in less bending forces on the broaching axis under the action of the lock, resulting in greater safety of the earthmoving equipment.
  • the inclination of the ramps in reciprocal support causes a reaction force, a component of which, parallel to the plane 10 of the geometric axes of the broaching axes 8 and 9, tends to bring the broaching axis of the adapter reversible at the bottom of hooks 17.
  • the broaching pins 8, 9 have in their central zone a flat surface 21, 22, respectively.
  • the flat surfaces 21 and 22 are arranged symmetrically to each other with respect to the median plane 11. They are inclined in the direction of approaching downwards. They play the role guide surface of the locking means of the quick-attach device 5 on the reversible adapter 4.
  • the first phase consists in bringing the hooks 17 of a broaching axis.
  • the broaching axis, 8 for example is at the bottom of the hooks 17, the quick-attach device 5 is tilted by pivoting on the broaching axis 8.
  • the advantages of the invention are linked to the arrangement of the symmetrical inclined ramps in the reversible adapter and in the quick-attach device.
  • a single reversible adapter with a symmetrical contact profile ensures the absorption of forces in the two operating modes, retro and chouleur.
  • the profile and angle of the inclined ramps are determined to provide the best compromise between force absorption and play compensation, and better transmission of the digging forces, avoiding bending on the broaching pin ensuring the locking.
  • the mechanical stresses are directly taken up by the side plates of the reversible adapter and are then diluted towards the cup 1 whereas in the prior art, a central take-up of the stresses causes a bending-compression of the broaching axis ensuring the locking , which is detrimental to fatigue resistance.
  • the dissociation between the parts ensuring, on the one hand the recovery of the main breakout forces and on the other hand the locking of the quick coupler on the reversible adapter, induces better management of wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)
  • Soil Working Implements (AREA)

Claims (10)

  1. Schnelllösevorrichtung (5) für Erdbewegungsmaschine mit Arm (2) zum Manövrieren eines Löffels, umfassend zwei Haken, bezeichnet als vordere Haken (17), und einen Riegel, bezeichnet als hinterer Riegel (18), dadurch gekennzeichnet, dass sie zwei geneigte Rampen (19, 20) umfasst, die symmetrisch auf beiden Seiten des Riegels (18) angeordnet sind, wobei die Neigungsebene der zwei Rampen (19, 20) unter den Haken (17) verläuft.
  2. Schnelllösevorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Riegel (18), bezeichnet als hinterer Riegel, ein Riegel ist, der durch eine Feder oder durch einen Zylinder vorgespannt ist.
  3. Einheit für Erdbewegungsmaschine mit Arm (2) zum Manövrieren eines Löffels, wobei die Einheit Folgendes umfasst:eine Schnelllösevorrichtung (5), die ausgelegt ist, um an das Ende des Arms (2) zum Manövrieren der Maschine fixiert zu werden, und einen umkehrbaren Adapter (4), der ausgelegt ist, um mit dem Löffel gekoppelt zu sein, wobei der umkehrbare Adapter (4) zwei seitliche Platten (6, 7) umfasst, die durch zwei Bohrungsachsen (8, 9) senkrecht zu den Ebenen der seitlichen Platten verbunden sind, wobei die Schnelllösevorrichtung (5) zwei Haken, bezeichnet als vordere Haken (17), und einen Riegel, bezeichnet als hinterer Riegel (18), umfasst, wobei die vorderen Haken (17) der Schnelllösevorrichtung (5) dazu ausgelegt sind, eine der Bohrungsachsen (8, 9) des umkehrbaren Adapters (4) aufzunehmen, wobei der hintere Riegel (18) ausgelegt ist, unter die andere Bohrungsachse des umkehrbaren Adapters (4) im Zustand eingeführt zu werden, in dem der umkehrbare Adapter (4) an die Schnelllösevorrichtung (5) fixiert ist, dadurch gekennzeichnet, dass die Schnelllösevorrichtung (5) nach einem der Ansprüche 1 oder 2 zwei geneigte Rampen (19, 20) umfasst, die symmetrisch auf beiden Seiten des Riegels (18) angeordnet sind, wobei die Neigungsebene der zwei Rampen (19, 20) unter den Haken (17) verläuft, dadurch, dass der umkehrbare Adapter (4) mindestens zwei geneigte Rampen umfasst, und dadurch, dass die geneigten Rampen (19, 20) der Schnelllösevorrichtung (5) in reziproker Auflage auf den geneigten Rampen (13, 15; 16, 14) des umkehrbaren Adapters (4) im Zustand sind, in dem der umkehrbare Adapter (4) an die Schnelllösevorrichtung (5) fixiert ist.
  4. Erdbewegungsmaschine mit einer Schnelllösevorrichtung und einem umkehrbaren Adapter für einen Löffel, umfassend einen Arm (2) zum Manövrieren, an dessen Ende die Schnelllösevorrichtung (5) ausgelegt ist, um befestigt zu sein, wobei die Schnelllösevorrichtung (5) zwei Haken, bezeichnet als vordere Haken (17), umfasst, die symmetrisch mit Bezug auf eine vertikale Ebene angeordnet sind, die durch die Längsachse des Arms (2) zum Manövrieren verläuft und als Referenzebene (1) bezeichnet wird, und einen Riegel, bezeichnet als hinteren Riegel (18), der in der Referenzebene verschiebbar ist, wobei der umkehrbare Adapter (4) zwei seitliche Platten (6, 7) umfasst, die symmetrisch mit Bezug auf die Referenzebene sind, die durch zwei Bohrungsachsen (8, 9) senkrecht zu der Symmetrieebene verbunden sind, dadurch gekennzeichnet, dass die Schnelllösevorrichtung (5) nach einem der Ansprüche 1 oder 2 zwei geneigte Rampen (19, 20) umfasst, die symmetrisch auf beiden Seiten des Riegels (18) angeordnet sind, wobei die Neigungsebene der zwei Rampen (19, 20) unter den Haken (17) verläuft, dadurch, dass der umkehrbare Adapter (4) mindestens zwei geneigte Rampen umfasst, und dadurch, dass die geneigten Rampen (19, 20) der Schnelllösevorrichtung (5) in reziproker Auflage auf den geneigten Rampen (13, 15; 16, 14) des reversiblen Adapters (4) sind.
  5. Maschine nach Anspruch 4, dadurch gekennzeichnet, dass die geneigten Rampen (13, 14; 15, 16) des umkehrbaren Adapters (4) vier an der Zahl sind, zwei auf jeder seitlichen Platte (6, 7) des umkehrbaren Adapters (4).
  6. Maschine nach Anspruch 5, dadurch gekennzeichnet, dass die zwei geneigten Rampen (13, 14; 15, 16) jeder seitlichen Platte (6, 7) des umkehrbaren Adapters (4) zueinander symmetrisch sind und ebenfalls auf der Ebene (10) geneigt sind, die von den geometrischen Achsen der Bohrungsachsen (8, 9) definiert ist.
  7. Maschine nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass der Neigungswinkel der geneigten Rampen (13, 14; 15, 16; 19, 20) auf der Ebene, die von den geometrischen Achsen der Bohrungsachsen (8, 9) definiert ist, im Bereich zwischen 5 und 45° liegt.
  8. Maschine nach Anspruch 7, dadurch gekennzeichnet, dass der Neigungswinkel der geneigten Rampen (13, 14; 15, 16; 19, 20) auf der Ebene, die von den geometrischen Achsen der Bohrungsachsen (8, 9) definiert ist, im Bereich zwischen 10 und 30°liegt.
  9. Maschine nach Anspruch 8, dadurch gekennzeichnet, dass der Neigungswinkel der geneigten Rampen (13, 14; 15, 16; 19, 20) auf der Ebene, die von den geometrischen Achsen der Bohrungsachsen (8, 9) definiert ist, 20° beträgt.
  10. Maschine nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, dass die geneigten Rampen (19, 20) der Schnelllösevorrichtung (5) die gleiche Neigung wie die geneigten Rampen (13, 15; 16, 14) des umkehrbaren Adapters (4) aufweisen, mit denen sie in reziproker Auflage sind.
EP17816931.4A 2016-12-05 2017-11-29 Erdbewegungsmaschine mit einer schnelllösevorrichtung und einem umkehrbaren adapter für einen löffel Active EP3548671B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1661938A FR3059685B1 (fr) 2016-12-05 2016-12-05 Engin de terrassement a dispositif d'attache rapide et adaptateur reversible pour godet
PCT/FR2017/053281 WO2018104614A1 (fr) 2016-12-05 2017-11-29 Engin de terrassement a dispositif d'attache rapide et adaptateur reversible pour godet

Publications (2)

Publication Number Publication Date
EP3548671A1 EP3548671A1 (de) 2019-10-09
EP3548671B1 true EP3548671B1 (de) 2023-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17816931.4A Active EP3548671B1 (de) 2016-12-05 2017-11-29 Erdbewegungsmaschine mit einer schnelllösevorrichtung und einem umkehrbaren adapter für einen löffel

Country Status (5)

Country Link
EP (1) EP3548671B1 (de)
ES (1) ES2953517T3 (de)
FR (1) FR3059685B1 (de)
PL (1) PL3548671T3 (de)
WO (1) WO2018104614A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019227472A1 (en) * 2018-06-01 2019-12-05 Guangxi Liugong Machinery Co., Ltd. Multiple interface tool for a construction machine
DE102022127836A1 (de) 2022-10-21 2024-05-02 Liebherr-Hydraulikbagger Gmbh Baggerlöffel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2230981B1 (es) * 2003-01-24 2007-03-01 Claudi Herguido Fo Dispositivo de acoplamiento rapido para implementos de maquinas excavadoras o analogas.
DE102005037105C5 (de) * 2005-08-03 2011-06-22 Lehnhoff Hartstahl GmbH & Co. KG, 76534 Adapter für ein Arbeitsgerät als Teil einer Schnellwechselvorrichtung und Schnellwechselvorrichtung
US9970177B2 (en) * 2015-05-04 2018-05-15 Deere & Company Quick coupler having spring applied, hydraulically released primary and secondary lock members mounted on same cross shaft

Also Published As

Publication number Publication date
EP3548671A1 (de) 2019-10-09
WO2018104614A1 (fr) 2018-06-14
FR3059685B1 (fr) 2019-10-04
ES2953517T3 (es) 2023-11-14
PL3548671T3 (pl) 2023-10-02
FR3059685A1 (fr) 2018-06-08

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