EP1522635B1 - Attache rapide pour fixer des outils sur un bras d'excavatrices - Google Patents

Attache rapide pour fixer des outils sur un bras d'excavatrices Download PDF

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Publication number
EP1522635B1
EP1522635B1 EP04450185A EP04450185A EP1522635B1 EP 1522635 B1 EP1522635 B1 EP 1522635B1 EP 04450185 A EP04450185 A EP 04450185A EP 04450185 A EP04450185 A EP 04450185A EP 1522635 B1 EP1522635 B1 EP 1522635B1
Authority
EP
European Patent Office
Prior art keywords
coupling
wedge
plates
support plates
bar
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
EP04450185A
Other languages
German (de)
English (en)
Other versions
EP1522635A3 (fr
EP1522635A2 (fr
Inventor
Alois Wimmer
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.)
WIMMER Alois
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 EP1522635A2 publication Critical patent/EP1522635A2/fr
Publication of EP1522635A3 publication Critical patent/EP1522635A3/fr
Application granted granted Critical
Publication of EP1522635B1 publication Critical patent/EP1522635B1/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
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—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 a quick-change coupling for attachment of the working tools on an excavator boom, as explained in claim 1.
  • the AufEnglisheausnugm convinced the hook connections and the Audrückisation and the wedge lock are offset in plane parallel to the transverse center plane arranged on the working tool, the hooks of the hook connection are provided symmetrically to the transverse center plane on the working tool, and the pressure surface and wedge lock substantially in the area the transverse center plane are effective.
  • Such a design has the disadvantage that several different receiving organs must be provided, which are subjected to strong bending forces due to the lateral displacement to each other in unequal stress of the working tool.
  • the US 6231296 B1 discloses an apparatus for coupling a tool to an excavator boom, the apparatus comprising a boom mounting member and a locking unit having a hydraulic cylinder and a control unit for applying working pressure to the cylinder.
  • the cylinder includes two pistons with laterally ausfabrbaren from the cylinder locking wedges, wherein the pressure range of the piston on its side facing away from the piston rod to lock is greater than on its piston rod receiving side to open the lock.
  • the boom-mounting member includes two parallel connecting arms, between which the cylinder is arranged, so that the locking wedges extend laterally from the connecting arms on both sides.
  • the device On the part of the tool, the device has hook-shaped coupling elements, in which the provided at the coupling end of the connecting arms insert elements are suspended, and locking elements that provide the wedge surfaces of the spindles on a counter-support on.
  • the coupling elements and the blocking elements are each plate-shaped, but formed separately from each other, wherein in each case the plane of a blocking element is arranged offset to the plane of its counteracting coupling element. The elements do not form a common plate.
  • the WO 94/29533 A describes a coupling device for securing a connection assembly having at least one connecting element, which is engageable with a mounting plate fixed to a working device in linear alignment.
  • the coupling device has a locking member mounted in linear alignment with the corresponding connecting member, the locking member being interposed between a first position in which the locking member is engaged with the corresponding mounting plate to secure the connecting member thereto and a second position. in which the locking member is released from the mounting plate, so that a movement of the connecting element is possible relative to this, is movable.
  • An actuator is threadedly engaged with the corresponding obturator to move the obturator between the first and second positions by rotation of the actuator.
  • the coupling device includes a pair of support arms having distal ends and a work implement. On the implement, a pair of pivot plates are mounted, wherein define both first and second contoured, spaced apart recordings.
  • a pair of connecting members of generally equal length and width have first and second end portions which are pivotally connected between the distal ends of the support arms. The end portions are adapted to be fittingly received in the first and second receptacles, respectively.
  • a guide plate is attached near the first and second receptacles. Locking members are associated with the connecting members to selectively lock the engagement of the end portions, which provide a direct, linear force protruding connection substantially over the entire length and width of each connecting member.
  • a first bolt member extends between the first end portions of the respective connecting members to pivotally mount the connecting members to one of the support arms, and a second bolt member extends between the second end portions of the connecting members to pivotally mount the connecting members to the other of the support arms the first and second pin members are the only structural connections between the connectors.
  • the DE 44 12 373 A1 discloses a quick-change system for attaching an excavator tool to an excavator, comprising a box-like changer member hinged with two parallel bolts to the stick of the excavator and releasably secured to the excavator tool with two further connections, one of which serves as a bearing for receiving a tool-side abutment and the second connection is designed as acting between the housing and the tool locking, characterized in that the changer part at or near its end facing away from the bearing with a pressure surface and the tool with an associated, obliquely to the tool extending counter-pressure surface are, wherein the arrangement is made such that the changer part rests with tool received on the tool-side abutment and the counter-pressure surface and in this position against lifting from the counter-pressure surface can be locked.
  • the counterpart for the wedge lock is formed by a transversely extending to the planes of the support plates wedge bar, which is guided in a direction away from the working tool obliquely rising path and displaceable transversely to the Keilstablnaturesraum, the mutual pressure surfaces thereby are formed, that a pressure plate is provided on the coupling part, which is engageable with corresponding counter-contact surfaces on the coupling part under the taking place by the inclination of the pressure surfaces pushing the cross bar into the hook of the hook connection in abutment.
  • the receiving recesses are provided congruent for both the hook connection and the spline connection on each side of the longitudinal center plane, the forces are introduced evenly in the coupling plates, wherein the coupling plates between hook connection and splined connection are each claimed only to train.
  • the hook connection, on the one hand, and the pressing surfaces, on the other hand face each other and the spline connection causes the pressing surfaces to be displaced relative to each other in such a manner that the receiving recess of the splined connection is urged away from one another with respect to the hook connection and the pressing surfaces.
  • the attachment of the coupling plates on the working tool is free from the coupling forces and only needs to absorb the workforce.
  • the quick-change coupling according to the invention causes in a simple manner that upon displacement of the wedge member in the support plates, these are pulled towards the working tool out, whereby the corresponding contact pressure of the pressure surfaces and thus the hook connection is achieved.
  • the wedge rod to pass through the support plates and protrude to the excavator boom remote from the outer sides of the support plates, on both sides of each of the support plates, the spline is provided.
  • the spline is provided.
  • a hydraulic piston-cylinder unit may be provided for actuating the wedge bar, which is fully extended with unlocked wedge lock.
  • This has the advantage that the piston surface which is available when locking the wedge connection, due to the attached piston rod is less than to release the wedge lock, whereby a possible seizure of the wedge connection is counteracted insofar as greater forces can be applied when loosening than when locking.
  • the receiving recesses of the coupling plate with respect to the plane transverse to the plane vertical center plane can be formed symmetrically.
  • two coupling plates can be provided on each side of the longitudinal center plane, wherein the support plates can be inserted into the intermediate space between the adjacent coupling plates.
  • the hydraulic piston-cylinder unit may be supported with its end facing away from the wedge rod at the belonging to the hook connection cross bar.
  • tabs may be provided which are secured against pivoting relative to the support plates. This ensures that the hydraulic piston-cylinder unit is aligned with its longitudinal axis directly in the direction of movement of the wedge surfaces having bar.
  • the quick-change coupling according to the invention has a coupling part 1 to be fastened to the excavator boom and a coupling part 2 to be fastened to the working tool, the two coupling parts being connected to one another via a hook connection 3 on the one hand and a splined connection 4 on the other hand, with additional slanted start-up contact surfaces cooperating with each other on both coupling parts 5 are provided, which are pressed by the spline connection to each other, so as to achieve a play-free fit of the two coupling parts.
  • the coupling part 1 to be fastened to the excavator boom has eyelets 6, 7, through which the fastening bolts can be pushed through and fastened therein for attachment to the excavator boom.
  • a transverse bar 8 is arranged on the hook to be fastened to the working tool to be fastened coupling part 2 on the excavator boom to be fastened to the coupling part 1.
  • the wedge connection is formed by a wedge-shaped, flattened rod 10 extending parallel to the transverse bar 8 in the region of the wedge connection, contact surfaces 11 being provided as counter surfaces on the coupling part, along which the wedge bar 10 can be moved so that the coupling part 1 is pulled into the coupling part 2 becomes.
  • the mutual pressure surfaces 5 are formed by the coupling part 1, a pressure plate 12 is provided, which is engageable with corresponding counter-contact surfaces 13 on the coupling part 2 in Appendix.
  • the inclination of the pressure plate 12 corresponds in the coupled state about the inclination of the Gegenandschreib constitutional 13, so that upon actuation of the wedge connection a mutual distortion between the spline and Andschreibdon is given, which also has the effect that due to the inclination of the Andschreibdon 5, the cross bar 8 in the hooks 9 is pressed in.
  • a hydraulic piston-cylinder unit 15 is provided which is arranged so that for insertion of the wedge bar 10 on the respective counter wedge surfaces 11, the hydraulic piston-cylinder unit is for the purpose of shortening the same pressurized. This has the advantage that a higher pressure can be used for opening than for insertion of the wedge connection, whereby any jamming can be prevented, or these jamming can be solved easily.
  • support plates 16 are provided, on the one hand, the eyelets 6,7 and on the other hand carry the cross bar 8 for hooking the coupling part 1 in the hooks 9 of the coupling part 2, wherein the cross bar 8, the two support plates 16 together and these projected on the outside on both sides. Furthermore, the two support plates 16, which also extend parallel to each other and are arranged symmetrically to the longitudinal center plane of the working tool and also the kinking plane of the excavator boom, are still connected to each other by the pressure plate 12.
  • a connecting web 17 is additionally provided, which is attached via a central lug 20 on the transverse bar 8 and from which on the side facing away from the tab 12 two mounting tabs 21 are mounted wegragend between which the hydraulic piston-cylinder unit 15 pivotally is attached.
  • the connecting plate 20 as well as the two fastening straps 21 are each bent towards the holding eyes 6, 7, whereby the longitudinal axis of the hydraulic piston-cylinder unit 15 comes to rest approximately in the direction of movement of the wedge bar 10.
  • the wedge bar 10 is guided in the support plates 16 via slots 23, and projects beyond the support plates on both sides of the outside.
  • the wedge surfaces on the wedge bar 10 are provided both at the located between the support plates 16, these adjacent areas as well as on the support plates 16 on the outside superior areas.
  • the hydraulic piston-cylinder unit 15 engages the wedge bar 10 in the middle, the wedge rod 10 by a guide plate 22 in the axial Direction is led.
  • the connection makes it possible that any moments are transmitted to the hydraulic piston-cylinder unit by any wedge movements, eg pivoting about its longitudinal axis.
  • This is in addition to the pivotal mounting of the hydraulic piston-cylinder unit still achieved in that the connection of the piston rod with the wedge bar 10 is carried out in such a way that on the one hand, the inner diameter of the eye of the piston rod is greater than the outer diameter of the wedge bar 10 (about 1 mm difference) and that on the other hand provided for axially fixing the eye of the piston rod on the wedge bar holding plates of the eyelet distanced (about 2 mm) are attached to the wedge bar.
  • the guide plates 22 are mounted.
  • the wedge bar 10 is formed as continuous, wherein it is fully flattened in the region of attachment of the hydraulic piston-cylinder unit, so circular, flattened on both sides of the articulation of the hydraulic piston-cylinder unit to a wedge surface.
  • this coupling part is also formed symmetrically with respect to the vertical longitudinal center plane of the working tool, ie that on each coupling plate a hook 9 for the hook connection 3 counter-hook 9 and corresponding counter-facing surfaces 11 'for the spline 4 and 13' for the system of the pressure plate 12 are provided.
  • This is intended, for example, that an excavator bucket can be mounted on the one hand for the deep operation with the opening downwards or for the high operation with the opening upwards, with one and the same coupling tool.
  • clutch plates 19 are provided, which are formed and arranged congruently with the clutch plates 14, wherein the distance between the plates 14 and 19 is dimensioned so that the support plates 16 of the coupling part 1 can intervene therebetween. It then engages the support plate 14 respectively in the located on the outer sides of the support plate 16 areas of the transverse bar 8, the wedge bar 10 and the support plate 12, wherein the plates 19 at the located on the inside of the support plate 16 areas of the transverse bar 8, the wedge bar 10 and the support plate 12 attack.
  • each coupling plate 14 of the coupling part 2 only a hook portion 9 and a wedge contact surface 11 or contact surface 13 for the pressure plate 12.
  • the additional hook coupling plates 19 ' are provided only in the hook area but not in the region of the spline connection or pressure plate.
  • An essential feature of the quick-change coupling according to the invention is that the mutual support of the individual parts of the hook connection with respect to the spline each extend in parallel planes, so that both the clutch plates 14 and 19 and the support plates 16 each claimed only to train are, whereby a buckling or bending of the plates is prevented.
  • a clearance between the wedge surface 11 and 11' and the Jacobandschisation 13 and 13 ' is provided which is dimensioned so that the pressure plate 12 can be moved simultaneously with the fully pushed back wedge rod 10 to the pressure plate 12th on the counter-pressure plate 13 in abutment and to move the wedge rod 10 against the wedge abutment surface 11.
  • the excavator boom is lowered with its coupling part 1 so that the cross bar 8 engages the hook 9 of the hook connection 3, which then the pressure plate 12 and the wedge rod 10 by pivoting the coupling part 1 through the free space 24 is lowered through until the pressure plate 12 abuts the Schmidtandschreib description 13.
  • the working tool is placed on the ground, after which then the hydraulic piston-cylinder unit 15 in the sense of Extension is pressurized, causing the wedge rod 10 is now moved away from the wedge abutment surface 11, namely until the wedge rod 10 comes to rest in the region of the free space 24. Thereafter, by pivoting the coupling part 1 to the crossbar 8 in the hook 9 of the hook connection 3 of the coupling part 1 in the region of the pressing surfaces 5 and the spline 4 are released from the coupling part 2 and then then the crossbar 8 can be moved out of the hook 9 of the hook connection 3 ,

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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)
  • Earth Drilling (AREA)
  • Shovels (AREA)

Claims (9)

  1. Attache rapide pour fixer des outils de travail sur un bras d'excavatrice, pour laquelle une partie de corps d'attache (1, 2) est disposée sur l'outil de travail et sur le bras d'excavatrice, les deux parties de corps d'attache (1, 2) pouvant être fixées l'une contre l'autre par une liaison à crochet (3) constituée d'une barre transversale (8) et de crochets (9) et un verrouillage à coin (4) agissant comme contre-support avec des surfaces de pression (5) mutuelles et au moins une plaque d'attache (14, 14') étant prévue sur l'outil de travail de part et d'autre de son plan médian parallèlement à celui-ci, laquelle présente les évidements de logement non seulement de la liaison à crochet (3) mais aussi de la liaison à coin (4) dans un plan, les plaques d'attache (14, 14') étant coïncidentes, et des plaques porteuses (16, 16') s'étendant parallèlement aux plaques d'attache (14) sur l'outil à l'état attaché sont prévues pour les pièces antagonistes à accrocher ou fixer dans les évidements des plaques d'attache (14) sur le bras d'excavatrice de part et d'autre du plan d'articulation du bras, caractérisée en ce que la pièce antagoniste pour le verrouillage à coin (4) est formée par une barre à coin (10) s'étendant transversalement aux plans des plaques porteuses (16), laquelle barre est guidée dans une bande (26) montant en biais loin de l'outil de travail et peut être déplacée transversalement au sens longitudinal de la barre trapézoïdale, les surfaces de pression (5) mutuelles étant formées du fait qu'une plaque de pression (12) est prévue sur la partie d'attache (1), laquelle plaque peut être amenée en appui contre des surfaces d'appui antagonistes correspondantes (13) sur la partie d'attache (2) en enfonçant la barre transversale (8) par l'inclinaison des surfaces de pression dans le crochet (9) de la liaison à crochet (3).
  2. Attache rapide selon la revendication 1, caractérisée en ce que la barre à coin (10) traverse les plaques porteuses (16) et dépasse sur les côtés extérieurs éloignés du bras d'excavatrice des plaques porteuses, le profilé à coin étant prévu de part et d'autre de chacune des plaques porteuses.
  3. Attache rapide selon la revendication 1 ou 2, caractérisée en ce que les pièces antagonistes pour la liaison à crochet sont constituées d'une barre transversale (8) traversant les plaques porteuses (16), dépassant sur les côtés extérieurs éloignés du bras d'excavatrice des plaques porteuses.
  4. Attache rapide selon les revendications 1 à 3, caractérisée en ce qu'une unité hydraulique à piston et vérin (15) qui est complètement développée en cas de verrouillage à coin (4) déverrouillé, est prévue pour l'actionnement de la barre à coin (10).
  5. Attache rapide selon les revendications 1 à 4, caractérisée en ce que les évidements de logement de la plaque d'attache (14) sont réalisés de manière symétrique en ce qui concerne le plan médian vertical s'étendant transversalement au plan de la plaque.
  6. Attache rapide selon les revendications 1 à 5, caractérisée en ce que deux plaques d'attache (14, 14') sont prévues de part et d'autre du plan médian longitudinal, les plaques porteuses (16) pouvant être insérées dans l'espace intermédiaire entre les plaques d'attache contiguës.
  7. Attache rapide selon les revendications 4 à 6, caractérisée en ce que l'unité hydraulique à piston et vérin (15) est en appui avec son extrémité éloignée de la barre à coin (10) contre la barre transversale (8) appartenant à la liaison à crochet.
  8. Attache rapide selon la revendication 7, caractérisée en ce que des languettes (20, 21) courbées en direction de la fixation du bras d'excavatrice, qui sont bloquées contre le pivotement par rapport aux plaques porteuses (16), sont prévues pour l'appui de l'unité hydraulique à piston et vérin (15).
  9. Attache rapide selon l'une quelconque des revendications 4 à 8, caractérisée en ce que la liaison entre l'unité hydraulique à piston et vérin (15) et la barre à coin (10) est effectuée tout en préservant un jeu.
EP04450185A 2003-10-09 2004-10-05 Attache rapide pour fixer des outils sur un bras d'excavatrices Not-in-force EP1522635B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0159503A AT500900B1 (de) 2003-10-09 2003-10-09 Schnellwechselkupplung zur befestigung der arbeitswerkzeuge an einem baggerausleger
AT15952003 2003-10-09

Publications (3)

Publication Number Publication Date
EP1522635A2 EP1522635A2 (fr) 2005-04-13
EP1522635A3 EP1522635A3 (fr) 2007-09-26
EP1522635B1 true EP1522635B1 (fr) 2012-06-13

Family

ID=34280372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04450185A Not-in-force EP1522635B1 (fr) 2003-10-09 2004-10-05 Attache rapide pour fixer des outils sur un bras d'excavatrices

Country Status (3)

Country Link
US (1) US7198451B2 (fr)
EP (1) EP1522635B1 (fr)
AT (1) AT500900B1 (fr)

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US20060248754A1 (en) * 2005-05-09 2006-11-09 Martin Gerald G Excavator stump shearing device
JP4247211B2 (ja) * 2005-07-05 2009-04-02 ヤンマー株式会社 トラクタ・ローダ・バックホーにおける掘削装置のロック機構
AT506554B1 (de) 2008-03-20 2011-11-15 Alois Ing Wimmer Kupplungsvorrichtung mit einer einrichtung zum automatischen verbinden von energieleitungen
SE0801169L (sv) * 2008-05-20 2009-11-21 Stig Sandberg Arrangemang för redskap och redskapsfäste
CA2651295A1 (fr) * 2009-01-27 2010-07-27 Nye Manufacturing Ltd. Dispositif d'accouplement permettant de raccorder un godet ou un outil a une fleche
US9730374B2 (en) * 2014-01-17 2017-08-15 May-Wes Mfg. Dual-position quick-connect mount and adjustably tensioned stalk stomper
SE540177C2 (sv) * 2014-09-12 2018-04-24 Brokk Ab Anordning för lösgörbar hopkoppling av ett redskap med en manövrerbar arm hos en arbetsmaskin.
US9903095B2 (en) * 2015-01-30 2018-02-27 Caterpillar Inc. Tool coupler
DE102015225498A1 (de) * 2015-12-16 2017-06-22 Oilquick Deutschland Gmbh Schnellwechselsystem mit mechanischer sicherheitseinrichtung gegen unbeabsichtigtes ablösen eines arbeitsgerätes
KR101809005B1 (ko) * 2017-07-04 2017-12-15 황윤국 크레인 사용 안전유닛을 구비하는 버킷 링크
US20210270007A1 (en) * 2017-10-06 2021-09-02 Groupe R.Y. Beaudoin Inc. Bracket for reversibly mounting an excavator bucket on an articulated arm
US11952738B2 (en) 2020-09-18 2024-04-09 Great Plains Manufacturing, Inc. Attachment coupler

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US7014385B2 (en) * 2001-09-26 2006-03-21 Hanwoo Tnc Corporation Attachment coupling device for heavy machinery

Also Published As

Publication number Publication date
EP1522635A3 (fr) 2007-09-26
AT500900A1 (de) 2006-04-15
US20050232742A1 (en) 2005-10-20
EP1522635A2 (fr) 2005-04-13
AT500900B1 (de) 2007-06-15
US7198451B2 (en) 2007-04-03

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