EP2192239A1 - An- und Abkopplungsvorrichtung für ein Gerät oder ein Werkzeug mit einem Ausleger einer Bau- und/oder Fördermaschine. - Google Patents

An- und Abkopplungsvorrichtung für ein Gerät oder ein Werkzeug mit einem Ausleger einer Bau- und/oder Fördermaschine. Download PDF

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Publication number
EP2192239A1
EP2192239A1 EP09306151A EP09306151A EP2192239A1 EP 2192239 A1 EP2192239 A1 EP 2192239A1 EP 09306151 A EP09306151 A EP 09306151A EP 09306151 A EP09306151 A EP 09306151A EP 2192239 A1 EP2192239 A1 EP 2192239A1
Authority
EP
European Patent Office
Prior art keywords
control
tool
equipment
axis
hooks
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
EP09306151A
Other languages
English (en)
French (fr)
Other versions
EP2192239B1 (de
Inventor
M. Valéry Dorguin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2192239A1 publication Critical patent/EP2192239A1/de
Application granted granted Critical
Publication of EP2192239B1 publication Critical patent/EP2192239B1/de
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
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • 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
    • E02F3/3659—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat electrically-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
    • E02F3/3663—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
    • E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
    • 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
    • E02F3/3672—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where disengagement is effected by a mechanical lever or handle

Definitions

  • the invention relates to a device for coupling and decoupling an equipment or a tool to an arrow of a civil engineering machine and / or handling.
  • the document EP 0 273 828-B1 describes a quick coupling device for equipment of civil engineering and handling equipment, and in particular for excavator, loader or other equipment used in public works, forestry or handling.
  • This device has, however, the disadvantage that the hydraulic lock for maintaining the connection between the tool and the boom of the machine is likely to yield in the case of a hydraulic failure.
  • EP 0.594.486-B1 discloses a quick coupler device for civil engineering and handling equipment avoiding the use of a hydraulic power circuit for locking.
  • This device is satisfactory and provides an automatic lock and automatic play catch.
  • These quick fasteners of known type include an interface intended to remain attached to the civil engineering or handling machine, and an interface intended to remain attached to the tool.
  • couplers have been provided to be mounted at the boom end of public works or civil engineering machinery. These couplers comprise links to the boom of the civil engineering or public works machine, and an adjustable interface for entering the axes of a tool or equipment.
  • the seizure of the axes of a tool or equipment is effected by two hooks which deviate from one another by making an input by the interior space to the axes of the tool or the tool. 'equipment.
  • a first object of the invention is to provide a new coupling device allowing a change of equipment or tool without being linked to a particular supplier.
  • a second object of the invention is to provide a security for holding the tool or equipment on the boom of the machine during work.
  • a third object of the invention is to allow the release and removal of a tool or equipment even in case of hydraulic failure of the civil engineering or handling machine to which the tool is intended.
  • the document WO 2007/038960 A1 discloses a quick coupling safety device, the main component of which is a small threaded shaft, whose two loose and unthreaded ends are mounted in two bearings.
  • a non-threaded end of the small threaded shaft is secured to a hexagonal nut, which prevents its axial movement, but not its rotation.
  • the other non-threaded end of the small shaft, turning crazy in its bearing, is connected to a toothed wheel.
  • the axial connection between the toothed wheel and the other non-threaded end of the small threaded shaft is provided by detachable means for releasing the small threaded shaft for maintenance.
  • the toothed wheel is driven by another toothed wheel of smaller diameter, thus constituting a speed reducer, actuated by an electric motor, hydraulic or pneumatic.
  • a speed reducer actuated by an electric motor, hydraulic or pneumatic.
  • the bearing on the other end of the small threaded shaft is on a support secured to a horizontal plate welded to two vertical plates. These vertical plates are welded to another top horizontal plate and another lower horizontal plate; these vertical plates thus constitute the framework of the quick coupling device.
  • These vertical dishes are finally vertically connected by the support plate of the bearing, in which the end of the small threaded shaft rotates.
  • the small threaded shaft rotates in a nut consisting of a single tapered parallelepiped casing.
  • This nut is secured to two vertical plates forming inferiorly movable hooks.
  • Each lower plate forming a movable hook is provided with a flat vertical surface sliding on a surface of a fixed vertical plate of the coupling device, with a horizontal surface sliding on a surface of a fixed horizontal plate of the device. coupling, and another horizontal surface sliding on another surface of a fixed horizontal plate of the coupling device.
  • the nut can only translate along the small threaded shaft, without rotating about the axis of the threaded small shaft, being welded along its vertical side surfaces to the vertical plates that form the slidingly movable hooks.
  • the small threaded shaft rotates only around its own axis and is not subject to translational motion. On the contrary, the nut is subjected to the translation movement without turning, moving in this way the movable hooks to bring them in the attachment position of the axes of the tool.
  • the movement of the nut on the small threaded shaft is irreversible, because it moves in both directions only when the small threaded shaft rotates in the direction conjugated to that of the movement of the nut: for example a clockwise rotation of the nut.
  • small threaded shaft causes a advancement of the nut, while the counterclockwise rotation of the small threaded shaft causes a withdrawal of the nut.
  • the irreversibility of the device is related to the operation of the small threaded shaft axially moving the nut in which it rotates.
  • the sliding stress between the vertical surfaces of the nut and the internal surfaces of the fixed vertical plates of the coupling device transmits the forces to the fixed structure of the coupling device.
  • Unexpected detachments of the tool of the coupling device are impossible because of the presence of the nut which does not allow unscrewing of the small threaded shaft secured to the nut screw 16, thereby avoiding the unexpected opening of movable hooks.
  • a fourth object of the invention is to provide a new improved coupling device of simple and economical construction, compact, short, light and compact, to take different types of buckets or tools, in the normal direction working, but also to take them in the opposite direction, in position called chouleur or hilling.
  • the invention relates to a device for coupling and decoupling an equipment or a tool to an arrow of a civil engineering machine and / or handling, comprising a body carrying an actuator assembly for moving a first hook, preferably movable, bringing it closer or away from at least a second hook, preferably fixed, to take or release the tool or equipment, wherein the actuator assembly includes a dual-control displacement mechanism so to use a command in case of failure of the other command, wherein the first command of the actuator assembly is a mechanical drive with manual drive of the moving mechanism, and wherein the second command of the actuator assembly is a command motorized mechanism of the displacement mechanism, characterized by mounting in alignment of the manual drive mechanical control, the movement mechanism and the motor control ed.
  • a coupling and decoupling device comprises a body 1 consisting of a central portion 100 of base and two side lugs 1a breakthroughs of several passages 1b, 1c, for axes not shown mounting on an arrow of civil engineering machine or public works not shown.
  • Each end 1f thick flange 1e is shaped fixed hook 1f.
  • the device also comprises an actuator assembly 2 mounted integral with the base 100 of the body 1 and extending longitudinally and parallel to the base 100 of the body 1.
  • This actuator assembly 2 is intended to actuate a double-controlled displacement mechanism 3.
  • the first control of the displacement mechanism 3 is preferably a mechanical drive 4 with manual drive mounted at the end of the displacement mechanism 3, while the second control of the displacement mechanism 3 is preferably a motorized drive also mounted at the end of the mechanism. 3 of displacement.
  • the first mechanical drive 4 with manual drive is preferably a control adapted to be actuated by a tool or a key or equivalent means.
  • control 4 comprises a terminal conformation 4a adapted to be driven by a key-type tool or an equivalent means, for example a crank.
  • the second motorized control can be an electric motor control, but is preferably a control comprising a motor driven by a fluid, preferably a hydraulic motor directly mounted at the end of the displacement mechanism and coaxially with this movement mechanism. .
  • the displacement mechanism 3 is preferably a screw-actuated translation mechanism, advantageously constituted by a central screw 3 of large diameter cooperating with a nut 6 having a movable hook-shaped end 6a.
  • the large diameter central screw 3 is mounted in appropriate bearings, or in bearings 3a, 3b.
  • the central screw 3 of large diameter is adapted to be rotated in one direction or the other, either by the manual control 4 and its conformation 4a, or by the motorized control 5, preferably consisting of a hydraulic motor 5 fed by two hydraulic lines 5a, 5b.
  • the approximation or removal of the fixed hooks 1f and mobile 6a can be obtained simply and ergonomically by either actuating the hydraulic motor 5, or by using the manual control 4, in both directions rotation can be used.
  • the preferred embodiment of the invention has several advantages.
  • the device in case of hydraulic failure, the device remains in its state without any modification, so that the coupling or decoupling is always ensured and maintained according to the chosen position in which the device is located.
  • the device according to the invention can be adapted to a wide range of tools, because the length of the central screw 3 of large diameter can be chosen to cover a large amplitude of movement, while the opening of hooks 1f and 6a can be chosen according to an opening taper allowing the insertion of a wide range of diameters of axes of tools or equipment.
  • Hydraulic hoses 5a, 5b are intended to be connected to the hydraulic power circuit of a civil engineering machine and / or handling not shown.
  • a casing 8 is provided in the upper part to protect the hydraulic motor 5, while a thick sheet 9 is provided in the lower part for the fairing of the hydraulic motor 5, thereby providing protection for the hydraulic motor 5.
  • front inner side surfaces of the two thick flanges 1e laterally protect the hydraulic motor 5 during work.
  • a deflector 101 of protection may finally be provided in the lower part of the front to protect the remaining accessible portion of the hydraulic motor 5.
  • the sheet 9 of large thickness is also provided to guide a not shown mounting axis of a not shown equipment or tool and to prevent the lateral bending inward of the fixed hooks 1f, ensuring their against-support and maintaining their gap during work.
  • the rear internal lateral surfaces of the two thick flanges 1e guide the movable hook 6a, ensuring its counter-support during work, while the lower edges of the two thick flanges 1e allow to guide a not shown mounting axis of a piece of equipment or tool not shown.
  • the hydraulic hoses 5a, 5b are connected to the hydraulic power circuit of the civil engineering machine and / or handling not shown in detail.
  • the hydraulic motor 5 is mounted by means of four fastening screws 5c to the body 1 of the device, so as to position the hydraulic motor 5 between the two fixed hooks 1f, thus ensuring the protection of the hydraulic motor 5 on each side by means of the thick plates 1e in which the hooks 1f are cut.
  • the manual control conformation 4a 4 of the central screw 3 of large diameter is preferably located on the opposite side to the hydraulic motor 5 relative to the central screw 3 of large diameter, and coaxially to their alignment.
  • the centers of the fixed hooks 1f and mobile 6a are preferably aligned parallel to the alignment of the manual control conformation 4a 4, the central screw 3 of large diameter and hydraulic motor 5, so as to pass the parallel efforts by the central screw 3 of large diameter.
  • the lower edges of the two thick flanges 1e for guiding an unrepresented mounting shaft of an equipment or tool not shown have the same spacing as the fixed hooks 1f, thus avoiding lateral force or slippage during work or docking equipment or tool not shown.
  • FIG. 3 a device according to the invention is shown in position of docking by insertion in the space between two axes 10a, 10b of the attachment portion 11 of a tool or equipment of civil engineering or handling.
  • the device according to the invention is compatible with different spacings or distances of the axes 10a, 10b and different bucket attachment parts 11 by the addition of diabolos 102a on the axis 10a and 102b on the axis 10b, to adapt them to the dimensions of the hooks 1f.
  • the fixed hooks 1f and movable 6a moved closer to each other by a distance less than the spacing of the axes 10a, 10b have conformations that release a space allowing the insertion of the beam 103 represented in dotted lines, or a reinforcement structure 104 of a bucket or similar tool.
  • the hydraulic motor 5 is then actuated in a direction corresponding to the distance of the fixed hooks 1f and mobile 6a to finally reach the position of the figure 4 .
  • the calibration valve of the hydraulic motor 5 opens and the hydraulic motor 5 s 'stop and stop.
  • the manual control 4 can be used, and this safely.
  • the only location where the hydraulic motor 5 is possibly not protected corresponds to the direction of insertion of the hydraulic motor 5 for mounting with screws 5c.
  • the axis diameters 10a may be different from the axis diameters 10b and finally the form released between the fixed hooks 1f and the slider 6 of the movable hook 6a allow in combination to take the bucket in the normal direction of work, but also to take it in the other direction, in position said chouleur or ridging
  • the approximation of the hooks serves to release the tool or equipment, while the distance of the hooks is used to take the tool or equipment.
  • the invention also covers the solution known as "grasping the outside of the axes", which is less widespread than the embodiment described, because of its larger size.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Shovels (AREA)
  • Feeding Of Workpieces (AREA)
  • Actuator (AREA)
EP09306151A 2008-12-01 2009-11-27 An- und Abkopplungsvorrichtung für ein Gerät oder ein Werkzeug mit/von einem Ausleger einer Bau- und/oder Fördermaschine Not-in-force EP2192239B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0858171A FR2939159A1 (fr) 2008-12-01 2008-12-01 Dispositif de couplage et decouplage d'un equipement ou d'un outil a une fleche de machine de genie civil et/ou de manutention

Publications (2)

Publication Number Publication Date
EP2192239A1 true EP2192239A1 (de) 2010-06-02
EP2192239B1 EP2192239B1 (de) 2011-07-20

Family

ID=40652738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09306151A Not-in-force EP2192239B1 (de) 2008-12-01 2009-11-27 An- und Abkopplungsvorrichtung für ein Gerät oder ein Werkzeug mit/von einem Ausleger einer Bau- und/oder Fördermaschine

Country Status (4)

Country Link
EP (1) EP2192239B1 (de)
AT (1) ATE517213T1 (de)
ES (1) ES2371198T3 (de)
FR (1) FR2939159A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210860A1 (de) * 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechsler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021101016U1 (de) 2020-10-05 2022-01-07 Kinshofer Gmbh Schnellwechsler für Baumaschinenwerkzeuge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251592A (en) * 1990-12-01 1992-07-15 Roberts & Griffiths Attachment means
DE9405014U1 (de) * 1994-03-24 1994-05-26 Leh Karl Heinz Josef Am Auslegerarm eines Bodenbearbeitungswerkzeuges, Baggers o. dgl. befestigbare Aufnahme- und Befestigungsvorrichtung für ein Werkzeug, einen Baggerlöffel o. dgl.
DE29705609U1 (de) * 1997-04-02 1997-07-24 Leh Karl Heinz Josef Sicherheitseinrichtung für eine Schnellkupplung eines Arbeitsvorsatzes an Bodenbearbeitungsgeräten
WO2007038960A1 (en) * 2005-10-03 2007-04-12 Cos.Mec S.R.L. Safety system to avoid unexpected release of an implement from a quick coupling device connected to a working arm of an earth-moving vehicle.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251592A (en) * 1990-12-01 1992-07-15 Roberts & Griffiths Attachment means
DE9405014U1 (de) * 1994-03-24 1994-05-26 Leh Karl Heinz Josef Am Auslegerarm eines Bodenbearbeitungswerkzeuges, Baggers o. dgl. befestigbare Aufnahme- und Befestigungsvorrichtung für ein Werkzeug, einen Baggerlöffel o. dgl.
DE29705609U1 (de) * 1997-04-02 1997-07-24 Leh Karl Heinz Josef Sicherheitseinrichtung für eine Schnellkupplung eines Arbeitsvorsatzes an Bodenbearbeitungsgeräten
WO2007038960A1 (en) * 2005-10-03 2007-04-12 Cos.Mec S.R.L. Safety system to avoid unexpected release of an implement from a quick coupling device connected to a working arm of an earth-moving vehicle.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210860A1 (de) * 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechsler
WO2016198638A1 (de) * 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechsler
US10934680B2 (en) 2015-06-12 2021-03-02 Lehnhoff Hartstahl Gmbh Quick-change device

Also Published As

Publication number Publication date
EP2192239B1 (de) 2011-07-20
FR2939159A1 (fr) 2010-06-04
ES2371198T3 (es) 2011-12-28
ATE517213T1 (de) 2011-08-15

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