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EP2018456B1 - Dispositif de changement rapide - Google Patents

Dispositif de changement rapide Download PDF

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Publication number
EP2018456B1
EP2018456B1 EP07725329A EP07725329A EP2018456B1 EP 2018456 B1 EP2018456 B1 EP 2018456B1 EP 07725329 A EP07725329 A EP 07725329A EP 07725329 A EP07725329 A EP 07725329A EP 2018456 B1 EP2018456 B1 EP 2018456B1
Authority
EP
European Patent Office
Prior art keywords
quick change
change device
coupling
operating position
hydraulic
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.)
Not-in-force
Application number
EP07725329A
Other languages
German (de)
English (en)
Other versions
EP2018456A1 (fr
Inventor
Peter Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lehnhoff Hartstahl GmbH and Co KG
Original Assignee
Lehnhoff Hartstahl GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lehnhoff Hartstahl GmbH and Co KG filed Critical Lehnhoff Hartstahl GmbH and Co KG
Priority to PL07725329T priority Critical patent/PL2018456T3/pl
Publication of EP2018456A1 publication Critical patent/EP2018456A1/fr
Application granted granted Critical
Publication of EP2018456B1 publication Critical patent/EP2018456B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/22—Joints and connections with fluid pressure responsive component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2142—Pitmans and connecting rods

Definitions

  • the invention relates to a quick-change device according to the type specified in the preamble of claim 1.
  • a first embodiment of a quick-change device is for example from the EP 0 483 232 B1 known, which consists of a swivel and lock comprehensive quick coupler and an adapter
  • the quick coupler is the backhoe side and the opposite, to be coupled with the quick coupler adapter is connected to a replaceable tool, eg. B. a sifting spoon arranged
  • the pivot lock described in said document provides, in addition to the production of the lock between the adapter and quick coupler, a merger of a hydraulic clutch for hydraulic fluid.
  • This hydraulic clutch must be brought together over a relatively wide pivoting. Due to the spreading forces occurring during operation, the hydraulic clutch can leak and ultimately fail. In addition, it then leads to significant environmental damage.
  • a quick-change device which performs a pivoting movement for coupling quick coupler and adapter and two coupling blocks
  • the coupling blocks are arranged at the free, the pivot axis opposite end, a coupling block is floatingly mounted
  • To counteract the spreading forces is a device provided that generates hydraulic pressure on the hydraulic clutch so that it counteracts the spreading forces The force acts substantially perpendicular to the contact surfaces of the coupling blocks. Relative movements due to the elasticity of the used material or due to the floating storage are thereby avoided.
  • a secure hydraulic connection is ensured during operation
  • the hydraulic clutch can not be solved and depending on the embodiment is then also the quick coupler blocks.
  • the US Pat. No. 6,428,265 B1 discloses a quick-change device with a quick coupler and an adapter.
  • a hydraulic clutch is provided.
  • the hydraulic clutch consists of a first coupling part and a second coupling part.
  • the two coupling parts are held in an operating position relative to each other.
  • the first coupling part and the second coupling part cooperate with mechanical holding means, which are formed separately from the locking device of the quick-change device.
  • mechanical holding means which are formed separately from the locking device of the quick-change device.
  • this is based on the object to further develop a quick-change device according to the type specified in the preamble of claim 1, that while avoiding the disadvantages mentioned by simple means the spreading forces occurring during coupling and operation in a simple manner counteracted is so that also a solubility of the hydraulic clutch is guaranteed if necessary in all cases
  • the invention is based on the finding that by force-locking interconnected mechanical holding means, which are effective in coupling the hydraulic clutch, on the one hand the spreading forces can be collected to a large extent and on the other hand at any time a need-based release of the mechanical means by loosening the Frictional connection is possible Even a flow of the material due to the high mechanical forces occurring during operation can continue with release of the frictional connection also a release of the holding means. This can also be optimized by certain structural designs according to the subclaims.
  • the hydraulic coupling parts are held frictionally in the operating position by the mechanical holding means.
  • the quick coupler is pivotable about a pivot axis and has at least one locking bolt whose straight line of movement with the pivot axis forms a working plane
  • the locking bolt is perpendicular to the pivot axis along a first straight line movable.
  • the coupling movement of the hydraulic clutch takes place along a second straight line, substantially perpendicular to the first straight line.
  • At least parts of the mechanical holding means are movable from a change position to the operating position and / or from the operating position to the change position via a drive. This is particularly advantageous from the point of view of user-friendliness of the quick-change device.
  • the drive for moving the mechanical holding means from the change position into or out of the operating position into the change position is designed as a hydraulic, pneumatic, electrical, mechanical and / or magnetic drive. This results in a wide field of application of the quick-change device according to the invention.
  • the first coupling part may be formed as a coupling block connected to the quick coupler and the second coupling part as a coupling block connected to the adapter, wherein the Clutch blocks each comprise at least one mutually associated part of a hydraulic clutch valve.
  • the coupling blocks have the advantage that the mechanical holding means thereby easily attack the coupling blocks and / or they can be integrated into the coupling blocks.
  • a power drive In order to keep the hydraulic coupling reliable even with very large spreading forces, it is advantageous if, in the operating position of the hydraulic clutch, a power drive generates an opposing force acting on the coupling parts - see WO 2005/093172 A1 - To additionally counteract the spreading forces and to relieve the mechanical holding means.
  • a simple construction of the power drive for generating the counterforce and the drive for moving the mechanical holding means between the change position and the operating position are identical.
  • the drive for moving the mechanical holding means from the change position to the operating position may be identical, and the drive for moving the mechanical means from the operating position to the change position may be formed by another drive, in particular by a force accumulator, such as a spring.
  • the drive for moving the mechanical holding means from the change position to the operating position as a fluid, in particular hydraulic, drive with single-acting piston formed
  • the drive for moving the mechanical holding means from the change position to the operating position and from the Operating position in the change position as a fluid, in particular hydraulic, drive be designed with double-acting piston.
  • the mechanical holding means can be moved in this case in a simple manner with the working machine side existing hydraulic system. A simple connection is thereby ensured, but also retrofitting existing machines with a quick-change device according to the invention is thus readily possible.
  • the mechanical holding means comprise in particular a first part connected to the quick coupler and a second part connected to the adapter.
  • the first part is preferably designed as a latch and the second part as a receptacle for the latch.
  • the non-positive holding is achieved in particular by the fact that the latch in the front region beveled in a wedge shape and the receptacle is formed accordingly Force applied in the direction of the operating position. This force can be used by the drive to move the mechanical Holding means from the change position to the operating position and / or vice versa are generated. Alternatively or additionally, however, this force can also be generated by a, possibly also switchable, energy storage.
  • this is designed as a cylindrical bolt, which is conically shaped in the front region
  • Jamming even at high pressures can be avoided in a simple manner by providing a bearing clearance S in the operating position below the bolt to the inside of the recording.
  • the bearing clearance S ensures that the bars always have one degree of freedom downwards and can therefore be released even in difficult conditions.
  • a compensation of tolerances and wear takes place in that the front region of the locking bolt and the associated surfaces of the receptacle have over a circumferential angle of up to 180 ° with each other corresponding conical surface and the circumferential angle to 360 ° complementary peripheral surfaces of the Include recording with the associated peripheral surface areas of the front portion of the locking bolt, the predetermined bearing clearance S.
  • the pressurized bolt can always move upwards and secure holding as well as surface contact are guaranteed
  • a part of the mechanical holding means may be formed as a rocker with a locking claw and the other part of the mechanical means as an abutment, in which case the claw and the abutment are wedge-shaped.
  • the second straight line can be perpendicular to the pivot axis.
  • the movement of the bolt takes place from the change position to the operating position along a third straight line
  • the third straight line can run in the working plane, in particular be aligned perpendicular to the first and second straight lines and also run parallel to the pivot axis.
  • FIG. 1 is a boom 10 a working machine, namely an earthmoving machine, such as an excavator, shown in perspective.
  • a quick-change device 12 is arranged, which in turn acts on a conventional sieve bucket 14.
  • the quick-change device 12 consists of a boom 10 connected to the quick coupler 16 and an adapter 18.
  • the adapter 18 is fixedly arranged on the sieve bucket 14.
  • the boom 10 with various tools, such as the illustrated sieve bucket 14 are connected via the adapter 18.
  • other tools may be used, in particular those which are hydraulically driven, such as a hydraulic hammer, hydraulic shears and the like.
  • These tools are driven by a hydraulic drive powered by the working machine.
  • the quick-change device 12 to a hydraulic clutch 20.
  • the tool in this case the sifting bucket 14, connected to the hydraulic system of the earthmoving machine.
  • the strainer 14 is provided for certain applications with a hydraulic opening rear wall 22. The opening and closing of the rear wall 22 is ensured by a not visible here, integrated into the sifting bucket 14 hydraulic drive.
  • the hydraulic drive is connected via the hydraulic clutch 20 to the hydraulic system of the earthmoving machine.
  • the hydraulic clutch 20 has an upper coupling block 20a and a lower coupling block 20b.
  • the mutually associated contact surfaces of the two coupling blocks 20a, 20b are provided with flat contact surfaces.
  • In these contact surfaces are hydraulic valves and centering pins 24, see FIG. 3 and 4 , as well as incorporated in the centering pins 24 integrated cleaning nozzles 26 for cleaning the hydraulic clutch.
  • the adapter 18 of the quick-change device 12 comprises a base plate 28, on which at one end a locking block 30 and at the end remote from the locking block 30 a held by means of fastening tabs 32 pivot axis 34 is provided.
  • the locking block 30 has on the pivot axis 34 side facing a clamping surface 36 which is inclined to any vertical surface with respect to the base of the adapter 18 by 3 ° to 35 °, preferably by 5 ° to 15 °.
  • the locking block 30 is further provided with two spaced apart, juxtaposed and conically shaped in longitudinal section, parallel to each other aligned cone openings 38.
  • Each cone opening 38 is in each case assigned to a locking bolt 40 of the quick coupler 16, which can be displaced into the cone opening.
  • the front end of the locking bolt 40 is formed in each case as a cone end 40a.
  • the cone angle of the conical apertures 38 delimited by the conical surface areas is dimensioned accordingly and in the illustrated embodiment is 5 ° to 15 °.
  • the quick coupler 16 has on its side of the pivot axis 34 of the adapter 18 side not shown here claws, which surround the pivot axis 34.
  • the clamping surface 36 of the adapter 18 associated with the end face of the quick coupler 16 has a re-bearing surface 42, preferably 5 ° to 15 °, with respect to the vertical - corresponding to the clamping surface 36 - inclined and also has two openings, through each one in the Quick changer 16 longitudinally displaceable driven latch bolt 40 can pass through.
  • Zentrierorgane for the purpose of lateral centering - first primary alignment - when lowering the quick coupler 16 on the adapter 18 Zentrierorgane are provided, of which the quick coupler 16 associated centering are formed as centering pins 44, which are arranged laterally next to the re-bearing surface 42 of the quick coupler 16.
  • the centering pins 44 cooperate with side surfaces of the locking block 30 of the adapter 18.
  • the adapter 18 centering for centering the quick coupler 16 and the adapter 18 to each other in the longitudinal direction of the clamping surface 36 in cooperation with the pivot axis 34 on - second primary alignment.
  • the quick coupler 16 and thus the sliding latch bolt 40 of the quick coupler 16 are aligned in relation to the cone openings 38 in cooperation with the pivot axis 34 and thus centered as a result of the clamping surface 36 and the re-bearing surface 42.
  • the coupling process between the locking bolt 40, the quick coupler 16 and the cone openings 38 of the adapter can be done without interference.
  • the lower coupling block 20b is fixedly connected to the locking block 30 via a support arm.
  • hydraulic outlets 46 are provided below the free end of the lower coupling block 20b.
  • the locking block 30 is offset inwards relative to the lower coupling block 20b and the hydraulic outlets 46, so that the hydraulic outlets 46 can be connected to hydraulic hoses / hydraulic lines 82 without further ado.
  • the upper coupling block 20 a is connected via a yoke with two arms 48 to the quick coupler 16. Between the upper coupling block 20a and the arms 48 damping elements 50 are interposed, so that the upper coupling block 20a is floatingly mounted.
  • the lower coupling block 20b may be floatingly mounted via damping elements 50 and the upper coupling block 20a may be arranged directly on the yoke or arms 48. In the embodiments illustrated in the figures, however, the presentation of the floating mounting of the upper coupling block 20a has been limited, since the alternative embodiment will be readily apparent to those skilled in the art.
  • the upper coupling block 20a can thereby be simply centered and aligned with the lower coupling block 20b.
  • an actuating bolt 68 is mounted in a sleeve 70.
  • the actuating pin 68 is hydraulically driven, is cylindrical and formed at its front end 72 as a wedge.
  • the lower coupling block 20b is laterally bolted to the support arm 78 fixedly connected to the adapter 18.
  • the support arm 78 has an opening 80 for the wedge 72 of the actuating bolt 68.
  • the opening 80 of the support arm 78 is respectively adapted to the wedge 72, so it is also wedge-shaped in the direction of the coupling block 20a opening.
  • the support arm 78 is arranged in each case and in the upper coupling block 20a each an actuating bolt 68 is provided.
  • the centering pins 24 can be seen with the cleaning nozzles 26.
  • hydraulic connections 46 are connected to hydraulic lines 82, which in turn are guided by the adapter 18 to the tool, not shown here, for example the sieve spoon 14.
  • the wedge-shaped opening 80 of the support arm 78 is formed as a passage opening for the actuating bolt 68.
  • the actuating pin 68 When retracted actuating pin 68 in the wedge-shaped opening 80, the actuating pin 68 down a clearance S, which prevent jamming of the actuating pin 68 in the wedge-shaped opening in any case, especially when wear occurs.
  • a double-acting actuating piston 68 that is, an actuating piston 68, which takes place hydraulically from the change position, in which the tool change with the quick-change device 12 with the arranged on the excavator boom 10 quick coupler 16 and various associated with a tool 14 adapter 18 , moved to the operating position, in which the quick coupler 16 is fixedly connected to an adapter 18 and the hydraulic clutch 20 is coupled.
  • the movement in the reverse direction is also hydraulically, with appropriate pressurization of the piston from the other side.
  • a single-acting hydraulic piston may also be provided, in which the movement of the actuating piston 68 takes place by means of a corresponding hydraulic pressurization on one side of the actuating piston 68.
  • a biased in the operating position spring which moves upon release of the force acting on the actuating piston 68 hydraulic force, this in the change position.
  • the actuating piston 68 in cooperation with the opening 80 in the support arm 78 holds the coupling blocks 20a, 20b in operation to each other. In this case, a coupling takes place but also a decoupling of the hydraulic clutch 20 and the quick coupler 16 with the adapter 18 almost at the same time. With the locking of the quick coupler 16 with the adapter, the actuating pin 68 simultaneously moved into the opening 80. Analog unlocking takes place. For the almost simultaneous method, the locking bolt 40 and the actuating pin 68 on a common drive.
  • the quick coupler 16 is pivotable about the pivot axis 34.
  • the locking bolt 40 of the quick coupler moves to lock the quick-change device 12 perpendicular to the pivot axis 34 in a first direction.
  • the coupling movement - second direction - of the hydraulic clutch 20 is substantially perpendicular to the first direction and in this case also perpendicular to the pivot axis 34.
  • the movement of the bolt 60 from the change position to the operating position is linear in a third direction, which is perpendicular to the first and second direction is aligned.
  • the third direction runs parallel to the pivot axis 34.
  • centering pins 24 have a quick coupler 16 facing conical receptacle 52 which is associated with a conical front portion of a slidably mounted in the lower coupling block 20b clamping bolt 54.
  • the clamping bolt 54 is provided with a rear stop pin 54 a, which is associated with a plunger 56 within the locking bolt 40 of the quick coupler 16.
  • the plunger 56 cooperates with a spring 58 such that when the plunger 56 is pressed in, the spring 58 is tensioned.
  • the quick coupler 16 is placed on the adapter 18 with its claws and moved about the pivot axis 34, this centered as described above, so that the locking bolts 40 are aligned with the cone openings 38.
  • the upper coupling block 20a rests on the lower coupling block 20b.
  • the locking bolts 40 now move into the cone openings 38 and tighten the quick coupler 16 with the adapter 18 and the coupling blocks 20a, 20b with each other. It is done with the bracing a coupling of the coupling blocks 20a, 20b.
  • the spring 58 is used as Studentshubkompensation of the locking bolt 40 relative to the clamping bolt 54.
  • the spring 58 is in this case compressed only when the clamping bolt 54 completely abuts with its conical end 54b in the conical receptacle 52 and the two coupling block 20a, 20b holds.
  • the locking bolt 40 is then still not in the cone openings 38, but continues to run until it rests. This leads to the mentioned overstroke and the spring 58 is stretched. It is thereby ensured that the coupling blocks 20a, 20b are always reliably braced before the locking bolts 40 continue to wear in the quick coupler 16 and thus further rotation about the pivot axis 34 in the cone openings 38.
  • the locking bolts 40 are not hindered by the clamping bolts, which already rest in the conical receptacle 52.
  • the clamping bolt 54 with its conical end 54b lies flat against the conical seat 52 over a circumferential angle of up to a maximum of 180 °.
  • the circumferential angle of 360 ° complementary partial surfaces of the clamping bolt 54 thereby form a bearing clearance S, which prevent jamming of the clamping bolt 54 with the conical receptacle 52 in any case, especially when wear occurs.
  • FIGS. 8 and 9 a further embodiment of the invention is shown.
  • the upper coupling block 20a is provided with a laterally outwardly movable actuating pin 60 which is hydraulically actuated and moves against a spring, not shown here to the outside.
  • the actuating pin 60 is associated with a rocker 62 which is mounted tilted approximately centrally in the upper coupling block 20a.
  • the rocker 62 has a projection 62a associated with the actuating bolt 60 and, on the other side, a claw 62b which engages around the lower coupling block 20b.
  • the claw 62b is chamfered corresponding to the associated lower abutment surface of the lower coupling block 20b.
  • the rocker 62 is rotatably mounted about a pivot pin 64 and with a torsion spring not visible here so biased that when retracted actuating pin 60, the rocker 62, the lower coupling block 20b free.
  • the pivot pin 64 is connected via a holding arm 66 with the upper coupling block 20 a and thus with the quick coupler 16.
  • the coupling blocks 20a, 20b in operation, that is in the coupled state via the rocker 62, the pivot pin 64, the support arm 66, the claw 62b in cooperation with the tapered abutment surface of the lower coupling block 20b and the at Actuating bolt 60 applied applied hydrostatic force.
  • the construction just described is formed on both sides of the coupling blocks 20a, 20b.
  • the spreading forces occurring can be transmitted on each side via the rocker 62 between the upper and lower coupling block 20a, 20b.
  • the applied hydrostatic force holds the respective actuating pin 60 in the holding position. If the hydrostatic force is released, the spring respectively associated with the actuating pin 60 in the upper coupling block 20a moves it inwards so that the corresponding rocker 62 pivots through the torsion spring connected to the pivot pin 64 and the lower coupling block 20b opens Quick change device 12 is released.
  • the embodiments shown in the drawing comprise a quick-change system according to the in the WO 2005/093172 A1 disclosed quick-change device.
  • the invention is characterized by its simple possibility of counteracting the spreading forces by mechanical means. In addition, however, additional forces / pressures for actuating and holding the mechanical means, such as the bolt necessary. Upon release of the hydraulic pressure, the upper and lower coupling blocks 20a, 20b are released and the quick coupler 12 can be opened.

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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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Earth Drilling (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

L'invention concerne un dispositif de changement rapide (12), comprenant un mécanisme de changement rapide (16) fixé du côté de la machine de travail, un adaptateur (16) pouvant être verrouillé au mécanisme de changement rapide (16) et connecté à un outil (14) et un accouplement hydraulique (20) pour produire une liaison hydraulique entre le système hydraulique présent sur la machine de travail et le système hydraulique de l'outil (14), l'accouplement hydraulique (20) se composant d'une première partie d'accouplement (20a) et d'une deuxième partie d'accouplement (20b) et les deux parties d'accouplement (20a, 20b) étant maintenues dans une position fonctionnelle l'une par rapport à l'autre, la première partie d'accouplement (20a) et la deuxième partie d'accouplement (20b) coopérant au moins avec des moyens de retenue mécaniques (68, 78, 80), qui sont réalisés séparément du dispositif de verrouillage du dispositif de changement rapide (12). L'invention se caractérise en ce que les parties d'accouplement (20a, 20b) sont maintenues par engagement par force dans la position fonctionnelle par les moyens de retenue mécaniques (68, 78, 80).

Claims (18)

  1. Dispositif de changement rapide (12) comprenant un raccord rapide (16) fixé côté machine-outil, un adaptateur (16) pouvant être verrouillé au raccord rapide (16) et relié à un outil (14) et un accouplement hydraulique (20) pour créer une liaison hydraulique entre le système hydraulique disponible sur la machine-outil et le système hydraulique de l'outil (14) sachant que l'accouplement hydraulique (20) est composé d'une première pièce d'accouplement (20a) et d'une deuxième pièce d'accouplement (20b) et les deux pièces d'accouplement (20a, 20b) sont maintenues dans une position de service relativement l'une par rapport à l'autre, sachant que la première pièce d'accouplement (20a) et la deuxième pièce d'accouplement (20b) agissent conjointement avec au moins des organes de retenue mécaniques (68, 78, 80), qui sont formés séparément du dispositif de verrouillage du dispositif de changement rapide (12), les pièces d'accouplement (20a, 20b) sont maintenues par liaison de force dans la position de service par les organes de retenue mécaniques (68, 78, 80), caractérisé en ce que le raccord rapide (16) peut être pivoté autour d'un axe de pivotement (34) et présente au moins un boulon de verrouillage (40) dont la ligne droite de mouvement forme un niveau de travail avec l'axe de pivotement (34) et le boulon de verrouillage (40) peut être déplacé verticalement par rapport à l'axe de pivotement (34) le long d'une première ligne droite, le mouvement d'accouplement de l'accouplement hydraulique (20) a lieu le long d'une deuxième ligne droite, essentiellement verticalement par rapport à la première ligne droite.
  2. Dispositif de changement rapide selon revendication 1, caractérisé en ce qu'au moins des pièces des organes de retenue mécaniques (68, 78, 80) peuvent être déplacées par une commande depuis une position de changement dans la position de service et/ou depuis la position de service dans la position de changement.
  3. Dispositif de changement rapide selon revendication 2, caractérisé en ce que la commande pour le déplacement des organes de retenue mécaniques (68, 78, 80) est formée depuis la position de changement dans ou à partir de la position de service dans la position de changement en tant que commande hydraulique, pneumatique, électrique, mécanique et / ou magnétique.
  4. Dispositif de changement rapide selon l'une des revendications précédentes, caractérisé en ce que la première pièce d'accouplement est formée en tant qu'un bloc d'accouplement (20a) relié au raccord rapide (16) et la deuxième pièce d'accouplement est formée en tant qu'un bloc d'accouplement (20b) relié à l'adaptateur (18), sachant que les blocs d'accouplement (20a, 20b) comprennent respectivement au moins une pièce jointe d'une vanne de couplage hydraulique.
  5. Dispositif de changement rapide selon l'une des revendications 2 à 4, caractérisé en ce que la commande pour le déplacement des organes de retenue mécaniques (68, 78, 80) est formée depuis la position de changement dans la position de service et la commande pour le déplacement des organes de retenue mécaniques (68, 78, 80) depuis la position de service dans la position de changement par une autre commande, notamment par un accumulateur d'énergie, comme un ressort (70).
  6. Dispositif de changement rapide selon revendication 5, caractérisé en ce que la commande du processus des organes de retenue mécaniques (68, 78, 80) est formée à partir de la position de changement dans la position de service en tant que commande fluidique, notamment hydraulique, avec piston à simple effet.
  7. Dispositif de changement rapide selon l'une des revendications 1 à 4, caractérisé en ce que la commande pour le déplacement des organes de retenue mécaniques (68, 78, 80) est identique depuis la position de changement dans la position de service et depuis la position de service dans la position de changement, et est formée notamment en tant que commande fluidique, de préférence hydraulique avec piston à double effet.
  8. Dispositif de changement rapide selon l'une des revendications précédentes, caractérisé en ce que les organes de retenue mécaniques (68, 78, 80) comprennent une première pièce reliée au raccord rapide (16) et une deuxième pièce reliée à l'adaptateur (18).
  9. Dispositif de changement rapide selon revendication 8, caractérisé en ce que la première pièce est formée en tant que verrou (68) et la deuxième pièce en tant que réceptacle (80) pour le verrou (68), sachant que le verrou (68) est maintenu dans la position de service par une force en direction de la position de service.
  10. Dispositif de changement rapide selon revendication 9, caractérisé en ce que la force par la commande pour le déplacement des organes de retenue mécaniques (68,78, 80) est produite depuis la position de changement dans la position de service et / ou inversement.
  11. Dispositif de changement rapide selon revendication 8 ou 9, caractérisé en ce que le verrou (68) est biseauté en forme de coin sur le devant et le réceptacle (80) est formé de manière correspondante.
  12. Dispositif de changement rapide selon revendication 11, caractérisé en ce que le verrou (68) est formé en tant que boulon cylindrique et en pointe sur l'avant.
  13. Dispositif de changement rapide selon revendication 12, caractérisé en ce que le verrou (68) présente un jeu de palier (S) dans la position de service dans le réceptacle (80) vers le bas.
  14. Dispositif de changement rapide selon revendication 13, caractérisé en ce que la zone avant du boulon de verrouillage (80) et les surfaces attribuées du réceptacle présentent des enveloppes coniques correspondantes les unes avec les autres comme par un angle inscrit pouvant atteindre 180° et les surfaces primitives de référence circonférentielles complétant l'angle inscrit de 360 ° C du réceptacle avec les zones de surface circonférentielle affectées du devant du boulon de verrouillage (68), renferment le jeu de palier prédéterminé.
  15. Dispositif de changement rapide selon revendications 14, caractérisé en ce que la deuxième ligne droite s'étend verticalement par rapport à l'axe de pivotement (34).
  16. Dispositif de changement rapide selon revendication 14 ou 15, caractérisé en ce que le mouvement des organes mécaniques (68, 78, 80) a lieu depuis la position de changement dans la position de service le long d'une troisième ligne droite.
  17. Dispositif de changement rapide selon revendication 16, caractérisé en ce que la troisième ligne droite s'étend dans le niveau de travail et est notamment alignée verticalement par rapport à la première et deuxième ligne droite.
  18. Dispositif de changement rapide selon revendication 17, caractérisé en ce que la troisième ligne droite s'étend parallèlement à l'axe de pivotement (34).
EP07725329A 2006-05-17 2007-05-16 Dispositif de changement rapide Not-in-force EP2018456B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07725329T PL2018456T3 (pl) 2006-05-17 2007-05-16 Urządzenie szybkozłączne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006023420A DE102006023420B4 (de) 2006-05-17 2006-05-17 Schnellwechselvorrichtung
PCT/EP2007/004414 WO2007131800A1 (fr) 2006-05-17 2007-05-16 Dispositif de changement rapide

Publications (2)

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EP2018456A1 EP2018456A1 (fr) 2009-01-28
EP2018456B1 true EP2018456B1 (fr) 2012-08-22

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Family Applications (1)

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EP07725329A Not-in-force EP2018456B1 (fr) 2006-05-17 2007-05-16 Dispositif de changement rapide

Country Status (9)

Country Link
US (1) US7735249B2 (fr)
EP (1) EP2018456B1 (fr)
JP (1) JP2009537711A (fr)
CA (1) CA2652312C (fr)
DE (1) DE102006023420B4 (fr)
DK (1) DK2018456T3 (fr)
ES (1) ES2389951T3 (fr)
PL (1) PL2018456T3 (fr)
WO (1) WO2007131800A1 (fr)

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EP3715535A1 (fr) 2019-03-27 2020-09-30 Kinshofer GmbH Dispositif de changement rapide pour outils de machines de construction
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US11970833B2 (en) 2020-04-17 2024-04-30 Liebherr-Hydraulikbagger Gmbh Quick coupling having a centering device

Also Published As

Publication number Publication date
US7735249B2 (en) 2010-06-15
CA2652312A1 (fr) 2007-11-22
PL2018456T3 (pl) 2013-01-31
DK2018456T3 (da) 2012-12-03
CA2652312C (fr) 2015-01-27
DE102006023420B4 (de) 2013-02-28
WO2007131800A1 (fr) 2007-11-22
US20090235561A1 (en) 2009-09-24
JP2009537711A (ja) 2009-10-29
ES2389951T3 (es) 2012-11-05
EP2018456A1 (fr) 2009-01-28
DE102006023420A1 (de) 2007-11-22

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