EP1317585B1 - Procede et systeme d'accouplement mecanique et multifluidique d'un outil sur un cadre porte-outil - Google Patents

Procede et systeme d'accouplement mecanique et multifluidique d'un outil sur un cadre porte-outil Download PDF

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Publication number
EP1317585B1
EP1317585B1 EP01967446A EP01967446A EP1317585B1 EP 1317585 B1 EP1317585 B1 EP 1317585B1 EP 01967446 A EP01967446 A EP 01967446A EP 01967446 A EP01967446 A EP 01967446A EP 1317585 B1 EP1317585 B1 EP 1317585B1
Authority
EP
European Patent Office
Prior art keywords
tool
frame
box
connection members
male
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.)
Expired - Lifetime
Application number
EP01967446A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1317585A1 (fr
Inventor
Loic Mailleux
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.)
Mailleux SA
Original Assignee
Mailleux SA
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 Mailleux SA filed Critical Mailleux SA
Publication of EP1317585A1 publication Critical patent/EP1317585A1/fr
Application granted granted Critical
Publication of EP1317585B1 publication Critical patent/EP1317585B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/3654—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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor

Definitions

  • the present invention relates both to a method and a system both mechanical and multifluidic coupling between the tool holder frame of a manipulator such as, in particular, a hydraulic loader and a tool interchangeable.
  • the first element is, for example, a motor vehicle or a manipulator craft.
  • the second element is any working device, for example a trailer intended to contain materials, or a tool capable of producing a specific operation.
  • the second element comprises control members, such as only cylinders or fluid-controlled motors (hydraulic fluid and / or air compressed), it is necessary to connect the different supply and discharge ducts of this fluid to ducts equipping the first element, which are connected to a source producing the pressurized fluid, and a return and pressurizing reservoir which are either carried directly by the first element, or carried by another gear to which this first element is attached.
  • control members such as only cylinders or fluid-controlled motors (hydraulic fluid and / or air compressed)
  • a very characteristic situation in which we encounter such a configuration is that comprising an agricultural tractor on which is mounted a hydraulic loader for receiving different interchangeable tools.
  • the hydraulic pressure source is placed on the tractor.
  • the hydraulic supply ducts of the various cylinders of the loader are connected to those of the tractor by a multiple connection device, by example of the kind described in EP-B-0 390 715.
  • the loader has a tool holder frame on which it is possible to mount and lock a number of interchangeable tools.
  • Some of these tools also include control, such as hydraulic cylinders.
  • connection of the tool with the tool frame also requires, for therefore, that a hydraulic connection be made between the ducts feeding the tool cylinders and the hydraulic lines on the loader.
  • multiple fluidic connection devices are composed of two enclosures, generally rectangular parallelepipedal shape, open on one of their faces.
  • One of the two housings is provided with a set of male fluidic connection, while the other is provided with a set of organs complementary female connections.
  • Both sets of male and female connectors are in same number and occupy a similar position within their housing, so that when the two enclosures are put in coincidence, their apertures turned towards each other, each of the female organs is exactly in alignment with the male organ to which it is assigned.
  • DE 197 51 292 discloses a mechanism for protection of the fluidic connection elements including a game-in this case the male elements- are carried by a first support secured to a tool holder device, such as for example the arm of an excavator, and the other game - in the occurrence of the female elements - are carried by a second solidarity support of a Removable and interchangeable tool.
  • Each of these supports affects the shape of a cylinder surrounded by a split cylindrical sleeve (C-section) coaxial with the support.
  • Each sleeve plays the role of a protective cover which is is able to pivot on its support of selectively occupy either a first position in which he covers and protects the associated set of connectors from soiling, ie a second position in which he discovers them.
  • the sleeves In case of non-use, the sleeves occupy automatically said first protective position.
  • the two sleeves When bringing the two supports closer, for the purpose of coupling male and female connectors, the two sleeves are driven in rotation at means of ad hoc control devices to discover the connectors and allow this coupling.
  • connection elements both mechanical and fluidic, as well as protective covers, that these operations are done according to a sequencing defined and particular.
  • Another object of the invention is to propose a system automatic coupling, which can be fully controlled by the operator without having to descend from the craft on which it is located, in particular from his tractor if one is dealing with a hydraulic loader equipping an agricultural tractor.
  • Another object of the invention is to enable the connection fluidic between the different male and female connectors, even if the ducts fluid supply are under pressure.
  • Another object of the invention is to provide a positioning of the Housing carried by the tool that protects it from shocks and dirt.
  • Another object of the invention is to associate the system of fluidic connection with a mechanical locking system already largely used and proven, using a hydraulic cylinder carried by the tool holder frame which acts on transverse horizontal sliding rods, able to penetrate into Receiver holes provided on the tool.
  • the process according to the present invention is a process both mechanical and fluidic coupling between the tool holder frame of a manipulator such as, in particular, a hydraulic loader and a tool interchangeable, said tool holder frame being equipped with a first housing - said housing frame - provided with a set of male fluid connection members or females, while said tool is equipped with a second housing - said housing tool - provided with a set of complementary female fluid connection members or males, the tool-carrying frame and the tool being provided with hooking means and mutual locking, said frame and tool housings being each provided with a movable and retractable protective cover that normally covers the organs connecting the associated housing, said covers being arranged and positioned such that the correct positioning of the tool frame vis-à-vis the tool with a view to their mutual coupling automatically causes the retraction of each of these lids, and ensure the direct matching of the organs fluidic connection of the two housings.
  • the movement of approach and mutual positioning of the housings to which it is phase (i) and the interlocking movement of all the fluidic connections of phase (iii) are made along substantially orthogonal (one transverse and the other axial, if we consider the axis of connectors).
  • the system which is the object of the present invention is a system both mechanical and fluidic coupling between the tool holder frame of a manipulator such as, in particular, a hydraulic loader, and a tool interchangeable, wherein said tool holder frame is equipped with a first housing - said frame housing - provided with a set of male fluid connection members or females, while said tool is equipped with a second housing - said housing tool - provided with a set of complementary fluidic connection members females or males, the tool-carrying frame and the tool being provided with means hooking and interlocking.
  • a manipulator such as, in particular, a hydraulic loader
  • said housings of frame and tool are each provided with a movable and retractable protective cover which normally covers the connecting members of the associated housing, said lids being arranged and positioned in such a way that the positioning correct tool holder frame with respect to the tool with a view to their mutual coupling automatically causes the retraction of each of these lids, and ensures the direct mapping of the fluidic connection members of the two housings and that, on the other hand, said frame housing is slidably mounted in a support fixed to the tool holder frame, means being provided for moving it in direction of said tool housing after the fluid connection members of both housings were matched, to ensure their interlocking.
  • this system comprises means capable of achieving the mechanical locking of the tool on the tool holder prior to the aforementioned movement of the frame housing to the tool housing, intended to ensure the fluidic connection.
  • the mechanical locking of the tool on the tool holder is made by means of a pair of sliding rods which are mounted on the tool holder frame in a horizontal transverse direction, and whose end portions are adapted to penetrate into predicted holes on the tool, the displacement of these rods being controlled by a hydraulic cylinder mounted on the tool holder frame.
  • this hydraulic cylinder also controls the displacement of the frame housing in a direction perpendicular to that of stems, this via a cam device.
  • Figure 1 shows the front part of an agricultural loader of known type, mounted at the front of a tractor not shown.
  • Such a loader C comprises a number of hydraulic cylinders, including the cylinder V 1 shown, called “tipping cylinder", which serves to rotate the tool holder 1 about a transverse horizontal axis, that is to say say perpendicular to the drawing sheet.
  • the tool holder 1 has, at its end upper, a pair of side gutters 10, in the general shape of "U" whose the opening is directed forward and upward.
  • the gutters 10 are used to hook the tool 2, by nesting in these gutters sections of bars 21 arranged in the upper part of the tool.
  • Reference 11 designates a locking rod of the tool holder on the tool, the operation of which will be explained later, and by reference 12 a transverse bar intended to abut in notches 23 integral with the tool.
  • the tool 2 in question consists of a bucket - or bucket - 20, provided with a claw 200; in known manner it has the general configuration of a rake provided with a series of teeth carried by a support 201 which can pivot in one direction or the other, about an axis 202. This pivot is symbolized in Figure 1 by the double arrow K.
  • a pair of cylinders V 2 (only one is visible in the drawing) arranged symmetrically on either side of the median axis of vertical symmetry of the tool.
  • This kind of versatile tool is widely used by farmers, particularly in silage and silage operations, the claw allowing fill the bucket with materials such as straw or hay, and retain them in the dumpster during transport.
  • the tool holder 1 and the tool 2 are each provided with a half-fluid connection assembly, intended to ensure the hydraulic connection between the liquid supply and discharge conduits 30a coming from the feeder to the receiving ducts 30b. supplying the pair of cylinders V 2 .
  • These half-sets each consist of one flat housing that has the shape of a rectangular parallelepiped, relatively weak thickness, in the longitudinal direction.
  • the housing 3a carried by the tool holder is mounted, and guided in translation, in the longitudinal direction, in a support 9 which affects the shape general of a frame.
  • This housing is fixed in the central part, at the front of the tool holder 1.
  • the housing 3b is fixed, via a support plate 4, on the outer face of the tool, that is to say on the back of the bucket 2, in the upper region of it. It is therefore not exposed to the materials contained in the bucket.
  • the housing 3a is open up while the housing 3b is open down.
  • the fluidic connectors are hydraulic connectors, whose male members 60a are carried by the housing 3a and the female members 60b by the housing 3b.
  • the housing 3a further comprises a pair of rods, or centering pins 6a which are intended to be plugged, with a low clearance, in the receiving openings 6b provided in the housing 3b.
  • connection pins 61a, 61b for additionally providing an electrical connection between the loader and the tool.
  • the set of axes of the pins 6, the hydraulic connectors 60 and electrical pins 61 have parallel axes, in this case located substantially in the same longitudinal vertical plane, parallel to the direction of moving the mobile housing 3a in its support 9.
  • the casing 3a is covered at the top with a shell in two parts.
  • This includes a bent plate 53a fixed against the front wall (tool side) of the support 9 and, in rear part, an articulated cover 5a, whose transverse hinge axis 50a is carried by the support 9.
  • This shell covers the normally open space of the housing towards the top, above the hydraulic connection elements 60a and electrical 61a; it also covers, of course, the centering pins 6a.
  • the cover 5a has a generally "L" shaped cross section overturned a branch 51a extends parallel to above the opening of the housing 3a. Its other branch is hinged to the rear of the housing around said axis 50a.
  • An elastic return system such as a pair of helical torsion springs for example, normally holds the cover 5a in its closed position illustrated in Figure 4.
  • the whole forms a shell that completely closes the opening housing 3a, because the movable cover 5a is further provided with end cheeks lateral sections (referenced 500a in FIG. 4A) which ensure the protection of the connectors on the sides.
  • the housing 3b is provided with a cover 5b which consists of a flat plate type "guillotine" can slide forward in its own plan.
  • an elastic return system 50b such as a set of springs to pin, constantly tends to push the plate 5b backwards, against this overflow 300b in its active position closing the housing 3b.
  • the portion 51 has the lid present, on its front end (tour towards the tool) a flange folded upwards at right angles, referenced 52a.
  • this housing is carried by a plate 42 parallel to the plate support 40, and fixed on the latter by means of silent-blocks (elastic buffers) which confer a certain freedom of movement to the housing 3b with respect to the tool 2.
  • the tool being placed on the ground S , as represented in FIG. 1, the person in charge of the operation, which is in the tractor, by driving the appropriate jacks which equip the loader, first approaches the tool holder 1 of the tool so as to position the chutes 10 under the bar portions 21.
  • the housing 3 has just positioned under the housing 3b, just in alignment with it.
  • the plate 5b extends laterally on each of its sides, by legs which are opposite the support 9 of the housing 3a, so that it is this support that actuates the cover 5b in the direction of its retraction, the pushing forward, against the return spring 50b.
  • Suitable means for relative positioning of the tool by relative to the toolholder using sloped centering elements are also planned. They were not represented on the drawings because they are widely known per se, to ensure the correct positioning in the transverse direction of two elements relative to each other (perpendicular to the plane of the drawings).
  • each of the fluidic elements male and female is equipped with a closing flap, which prevents any escape unintentional liquid out of the connector, even if the liquid is at high pressure, as long as the connection is not made.
  • the locking device of known type, comprises a jack of control 7 integral with the tool holder frame, the axis of which is arranged horizontally and transversely.
  • the device comprises a pair of coaxial sliding rods 11, 11 'disposed in the axis of the cylinder 7, on each side thereof.
  • the rod 11 is integral with the cylinder body, while the rod 11 'is integral with the rod of the cylinder 700, which it extends.
  • Both rods are guided in axial translation in openings formed in 120-100 and 120'-100 'welded plates, respectively to the tool holder frame 1.
  • each of the rods 11, 11 ' is finds a receiving opening 22, 22 ', formed in a part 220, respectively 220 ', integral with the tool.
  • This device 8 which consists of a plate, is carried by the frame tool holder, and mounted movably on the latter.
  • the device 8 is mounted on the base of the support 9.
  • It has a pair of elongated holes, or lights 81, arranged horizontally and located at the base of element 8, in the extension of one of the other.
  • the support 9 is provided with a pair of guide fingers 30 which can slide freely each in a light 81.
  • the lights 81 are arranged oblique lights 82, in each of which engages and can slide a finger 31 secured to the housing 3a.
  • Exhibit 8 is provided with a downward-pointing appendix 80 which is attached to the end of the cylinder rod 7, in its junction zone 72 with the rod 11 '.
  • the inclined lights 82 are directed downwards and to the right, and the fingers 31 carried by the mobile housing 3a are also at the right end of lights 82.
  • This displacement also causes, via appendix 80, the displacement to the right of the cam member 8 along h ' .
  • the piece 8 is kept at the same height, as a result of the guidance of the fingers 30 in the lights 81. It therefore follows a horizontal straight path.
  • the fingers 31 are forced to follow the oblique slots 82, which causes the housing 3a to slide upwards in its support 9, this displacement being symbolized by the arrows i.
  • the support 9 in which the lower housing 3a is guided in translation has, in the upper part, solid lateral parts 90 which are likely to serve as support for the lateral portions of the housing 3b, and more particularly to the upper face of these side parts.
  • These parts 90 serve as abutments housing 3b, and immobilize completely translating upward, so as to withstand the pressure exerted by the housing 3a mobile, moving from bottom to top, during the connection.
  • the tool holder By manipulation of the tool holder by means of the jack V 1 , the tool holder is then completely released from the tool.
  • the covers 5a and 5b under the action of their return spring, automatically return to their original position, so as to protect the connectors of each of the housings 3a and 3b.
  • the cover 5a on one side and the rim of plate 530a on the other side also provide some protection from the plan of joint between the two housings, putting the whole away from environmental pollution (see in particular FIGS. 4A).
  • each pair of Fluidic or electrical connectors are not necessarily used. Their number is chosen sufficient to meet the requirements of the series tool which in requires the most.

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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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Earth Drilling (AREA)
  • Manipulator (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Shovels (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP01967446A 2000-09-08 2001-09-07 Procede et systeme d'accouplement mecanique et multifluidique d'un outil sur un cadre porte-outil Expired - Lifetime EP1317585B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0011441 2000-09-08
FR0011441A FR2813941B1 (fr) 2000-09-08 2000-09-08 Systeme d'accouplement mecanique et multifluidique d'un outil sur un cadre porte-outil
PCT/FR2001/002778 WO2002020906A1 (fr) 2000-09-08 2001-09-07 Procede et systeme d'accouplement mecanique et multifluidique d'un outil sur un cadre porte-outil

Publications (2)

Publication Number Publication Date
EP1317585A1 EP1317585A1 (fr) 2003-06-11
EP1317585B1 true EP1317585B1 (fr) 2004-04-07

Family

ID=8854084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01967446A Expired - Lifetime EP1317585B1 (fr) 2000-09-08 2001-09-07 Procede et systeme d'accouplement mecanique et multifluidique d'un outil sur un cadre porte-outil

Country Status (11)

Country Link
US (1) US6899509B1 (da)
EP (1) EP1317585B1 (da)
JP (1) JP2004508472A (da)
AT (1) ATE263870T1 (da)
AU (2) AU8782501A (da)
DE (1) DE60102711T2 (da)
DK (1) DK1317585T3 (da)
ES (1) ES2218447T3 (da)
FR (1) FR2813941B1 (da)
NZ (1) NZ524628A (da)
WO (1) WO2002020906A1 (da)

Cited By (1)

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AT513332A1 (de) * 2012-08-31 2014-03-15 Wacker Neuson Linz Gmbh Vorrichtung zum Kuppeln von einem Trägergerät und einem Werkzeug zugeordneten Medienleitungen
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AU2001287825B2 (en) 2007-01-04
JP2004508472A (ja) 2004-03-18
ES2218447T3 (es) 2004-11-16
AU8782501A (en) 2002-03-22
ATE263870T1 (de) 2004-04-15
DE60102711T2 (de) 2005-03-31
FR2813941A1 (fr) 2002-03-15
DE60102711D1 (de) 2004-05-13
EP1317585A1 (fr) 2003-06-11
FR2813941B1 (fr) 2003-05-16
DK1317585T3 (da) 2004-08-09
US6899509B1 (en) 2005-05-31
WO2002020906A1 (fr) 2002-03-14
NZ524628A (en) 2005-04-29

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