EP1994232A1 - Arrangement relatif a un dispositif rotatif - Google Patents

Arrangement relatif a un dispositif rotatif

Info

Publication number
EP1994232A1
EP1994232A1 EP07709376A EP07709376A EP1994232A1 EP 1994232 A1 EP1994232 A1 EP 1994232A1 EP 07709376 A EP07709376 A EP 07709376A EP 07709376 A EP07709376 A EP 07709376A EP 1994232 A1 EP1994232 A1 EP 1994232A1
Authority
EP
European Patent Office
Prior art keywords
pressure medium
implement
fastening device
rotation
lower fastening
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.)
Withdrawn
Application number
EP07709376A
Other languages
German (de)
English (en)
Other versions
EP1994232A4 (fr
Inventor
Anders Jonsson
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.)
ROTOTILT GROUP AB
Original Assignee
Indexator AB
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 Indexator AB filed Critical Indexator AB
Publication of EP1994232A1 publication Critical patent/EP1994232A1/fr
Publication of EP1994232A4 publication Critical patent/EP1994232A4/fr
Withdrawn legal-status Critical Current

Links

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
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • 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
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators

Definitions

  • the present invention concerns an arrangement related to a rotation device for a machine provided with a working arm, for example an excavator or the like, according to the preamble of claim 1.
  • a rotation device for a machine provided with a working arm, for example an excavator or the like
  • Such rotation devices often comprise also a tilt device, e.g. to make it possible for work implements to tilt sideways.
  • ROTOTILT a registered trademark of Indexator AB
  • An object of the present invention is to propose a device which provides a very advantageous solution of the aforesaid problems, and this object is achieved by the device having the features indicated in the claims.
  • Fig. 1 shows an arrangement according to the invention in an exploded schematic view
  • Fig. 2 shows a gripping device according to the invention as viewed from above
  • Figs. 3 and 4 illustrate various valve positions.
  • FIG. 1 shows a section of a working arm 10 of a digging machine, which arm 10 has two fastening sockets 11,12 for connecting an upper fastening device 20, which fastening device 20 has two fastening pins 21,22 for engagement with the fastening sockets 11,12.
  • FIG. 30 It also shows a lower fastening device 30 which has recesses 31,32 to accommodate fastening pins 81,82 of a shown work tool 80 in the form of a digging bucket and to accommodate fastening pins 91,92 of an alternative work tool 90 in the form of a hydraulically powered vibrator plate.
  • the lower fastening device 30 is normally provided with a hydraulic locking device (not shown) to facilitate work implement changes.
  • a rotation device 40 is disposed between the upper fastening device 20 and the lower fastening device 30 and comprises a stator element 41 connected to the upper fastening device 20, and a rotor element 42 connected to the lower fastening device 30.
  • the rotation device 40 may also be supplemented by a tilt device (not shown) which is not described here in detail, since such products are well-known to those skilled in the art.
  • An example of such a product which may be mentioned is the ROTOTILT (registered trademark) marketed by Indexator AB.
  • the upper fastening device 20, the rotation device 40 and the lower fastening device 30 together constitute a link between the working arm 10 and an appropriate work tool 80, whereby the work tool can be rotated as a result of the rotation device 40 imparting desired rotary motion to the lower fastening device 30 and hence to the work tool 80.
  • the rotation device 40 is supplemented by tilt facilities, similar reasoning refers to a transfer of tilt motion to the work tool 80 via the lower fastening device 30.
  • an implement unit 50 in the form of a gripping device or gripping module adapted to being attached to the lower fastening device 30.
  • the gripping device 50 comprises two pressure-medium-operated gripping claws 51,52 which may for example be used for the lifting of pillars and other objects.
  • the gripping device 50 is for example intended to be used in combination with the work tool 80.
  • the gripping claws 51,52 are pivotingly operated by two pressure-medium cylinders/hydraulic cylinders 53,54.
  • the rotation device 40 comprises a swivel device 60 for transfer of pressure medium, whereby a movable element of the swivel device accompanies a rotary movement imparted to the lower fastening device 30 by the rotor 42 of the rotation device 40, while a fixed element of the swivel device 60 is arranged non-rotative relative to the stator 41 of the rotation device 40 and the upper fastening device 20.
  • the swivel device 60 has two ducts running through it for supply of pressure medium to the implement unit 50 which is attached to the lower fastening device 30 and which is intended to be used in conjunction with, for example, an appropriate first work implement 80.
  • the swivel device 60 also has two ducts running through it for supply of pressure medium to an implement locking device of the lower fastening device 30.
  • Fig. 1 The locations of lines/hoses for the pressure medium, e.g. hydraulic oil, are illustrated in Fig. 1.
  • Two main lines/hoses 100,101 run via the arm 10 from a pressure medium source of the work machine to a remote-controllable valve block 70 for further distribution to the rotation device 40 and any associated tilt device.
  • the lines/hoses between the valve block 70 and the rotation device 40 and the tilt device have been omitted in Fig. 1.
  • the valve block 70 is attached to the upper fastening device 20.
  • Two lines/hoses 102,103 run from the valve block 70 and are each connected to a respective throughflow duct of the swivel device 60.
  • Two lines/hoses 104,105 run from said throughflow ducts, the line/hose 104 to the cylinder 53 and the line/hose 105 to the cylinder 54 of the gripping device 50.
  • two further lines/hoses 106,107 run from the valve block 70 and are each connected to a respective throughflow duct of the swivel device 60.
  • Two lines/hoses 108,109 run from the mentioned throughflow ducts to the locking device of the lower fastening device 30.
  • the cylinders 53 and 54 each have a built-in or integrated directional valve 55 as indicated in Figs. 2-4.
  • the directional valves can be switched manually to the positions shown in Figs. 3 and 4.
  • the cylinders 53 and 54 are adapted to working in parallel and performing the same patterns of movement. This is achieved by internal parallel connections (not shown) whereby a connecting line/hose 56 provides necessary communication of medium between the cylinders 53 and 54.
  • the lines/hoses from the swivel device 60 can thus alternately serve as feed or return lines depending on the direction of movement of the cylinders at the time.
  • the lines/hoses 104,105 are connected to the cylinders at connection points 154 and 155 of the cylinders 53 and 54.
  • the two-position valves 55 are switched to the operating position shown in Fig. 3 whereby the cylinders 53 and 54 and the gripping claws 51 and 52 can be operated as desired. It should of course be noted that the valve 55 of the cylinder 53 is mirror-inverted relative to the valve 55 of the cylinder 54 so that intended communication paths are provided.
  • the gripping device 50 activated as above can operate in parallel or alternately with, for example, the work implement 80. If for example it is desired to replace the work implement 80 by a work implement 90 which requires pressure medium, the procedure is as follows. The work implement 80 is disconnected from the lower fastening device 30, followed by the work implement 90 being connected to the lower fastening device 30. Thereafter, lines/hoses 191,192 of the work implement 90 are connected to the connection points 193 and 194 of the cylinders 53 and 54, as indicated in the drawings. It is advantageous if these connections are effected by so-called quick-coupling arrangements. Thereafter, the valves 55 are switched to the operating position shown in Fig.
  • the implement 90 is thus provided with its supply of pressure medium and is ready for use, while at the same time the gripping device 50 is placed in a parking position.
  • valves 55 When thereafter the implement 90 is to be replaced by another work implement, the valves 55 will be switched to the position shown in Fig. 3, followed by the lines/hoses 191,192 being detached from the connection points 193,194, and the implement 90 being thereafter released from the lower fastening device 30.
  • the gripping device 50 is then activated and ready for use. Thereafter a desired work implement can be connected to the lower fastening device 30, and so on.
  • the arrangement according to the invention makes it possible in an extremely user-friendly manner to use work implements irrespective of whether they require pressure medium, and to use an implement unit which requires pressure medium in parallel with a work implement which does not require pressure medium.
  • the swivel device 60 has only two ducts running through it to supply pressure medium to the implement unit 50 and, after change of connections according to the invention, to supply pressure medium to a work implement.
  • the swivel device 60 has four ducts running through it, two of them for supplying pressure medium to a locking device of the lower fastening device 30, and the other two for supplying pressure medium to the implement unit 50 or, after valve switching, to a work implement which requires pressure medium.
  • the above arrangement makes possible a very simple swivel device 60 with four throughflow ducts while at the same time minimising the provision of lines/hoses, thereby achieving technical and economic advantages and minimising the amount of space needed.
  • valves 55 may of course be varied within the concept of the inventive idea.
  • the switching of the valves is preferably effected manually by changing the rotational position of an operating lever so that the set positions of the valves are displayed.
  • the valves may also be remote-controllable and may where necessary also have more than two valve outlets.

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)
  • Earth Drilling (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Joints Allowing Movement (AREA)

Abstract

L'invention concerne un arrangement relatif à un dispositif rotatif pour un engin muni d'un bras de travail, par exemple une excavatrice ou équivalent, où le dispositif rotatif (40) peut être relié par un dispositif (20) supérieur de fixation à un bras (10) de travail et par un dispositif (30) inférieur de fixation à un instrument (80) de travail approprié. Le dispositif rotatif (40) comprend un dispositif (60) de pivot pour la transmission d'un fluide de pression, où un élément mobile du dispositif de pivot (60) accompagne un mouvement de rotation imparti au dispositif (30) inférieur de fixation par un rotor (41) du dispositif rotatif, tandis qu'un élément fixe du dispositif de pivot (60) est configuré non rotatif par rapport à un stator (41) du dispositif rotatif et au dispositif (20) supérieur de fixation. Le dispositif (60) de pivot comprend deux conduites de fluide de pression le longeant en vue d'un raccordement à une unité instrument (50) qui est fixée au dispositif (30) inférieur de fixation de manière à être utilisée en combinaison avec un premier instrument (80) de travail. Des moyens (55) sont disposés pour temporairement commuter le flux de fluide de pression vers ladite unité instrument (50) vers un second instrument (90) de travail qui nécessite du fluide de pression et qui prend temporairement la place du premier instrument (80) de travail. Le dispositif (60) de pivot comprend encore deux conduites pour fluide de pression le traversant en vue d'un raccordement à des moyens de verrouillage du dispositif (30) inférieur de fixation.
EP07709376.3A 2006-02-26 2007-02-22 Arrangement relatif a un dispositif rotatif Withdrawn EP1994232A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0600422A SE529658C2 (sv) 2006-02-26 2006-02-26 Arrangemang vid en rotationsanordning
PCT/SE2007/000166 WO2007097698A1 (fr) 2006-02-26 2007-02-22 Arrangement relatif a un dispositif rotatif

Publications (2)

Publication Number Publication Date
EP1994232A1 true EP1994232A1 (fr) 2008-11-26
EP1994232A4 EP1994232A4 (fr) 2017-03-08

Family

ID=38437645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07709376.3A Withdrawn EP1994232A4 (fr) 2006-02-26 2007-02-22 Arrangement relatif a un dispositif rotatif

Country Status (3)

Country Link
EP (1) EP1994232A4 (fr)
SE (1) SE529658C2 (fr)
WO (1) WO2007097698A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567836B2 (en) 2007-08-31 2013-10-29 Lavalley Industries, Llc Gripping assembly and gripping members for a grapple attachment
CN101970792B (zh) 2007-08-31 2014-03-12 勒瓦利工业公司 用于钻杆的抓钩装置
SE537181C2 (sv) 2008-10-21 2015-02-24 Svab Hydraulik Ab Styrsystem samt förfarande för en tiltrotator
FI121755B (fi) 2009-01-19 2011-03-31 Kinshofer Gmbh Työkalun kiinnitysjärjestely
ITMO20090144A1 (it) * 2009-05-27 2010-11-28 Mantovanibenne S R L Dispositivo idraulico di comando, in particolare per macchine operatrici.
US8328071B2 (en) 2011-02-17 2012-12-11 Lavalley Industries, Llc Position adjustable grapple attachment
AU2013295616B2 (en) 2012-07-27 2017-09-28 Lavalley Industries, Llc Grab arm housing for grapple attachment
NO20130805A1 (no) * 2013-06-10 2014-12-11 Mhwirth As Løftearmsammenstilling og fremgangsmåte for å bytte ut en holder i nevnte løftearmsammenstilling
US8973244B2 (en) 2014-04-17 2015-03-10 Lavalley Industries, Llc Pipe processing tool with pipe deformation members
DE102016106297A1 (de) * 2016-04-06 2017-10-12 EnBW Energie Baden-Württemberg AG Vorrichtung zum Abtrennen eines Bauteilabschnitts
SE546869C2 (en) * 2022-12-22 2025-03-04 Rototilt Group Ab Tiltrotator arrangement including a tiltrotator and a valve arrangement
DE102023114523A1 (de) * 2023-06-02 2024-12-05 OilQuick Deutschland KG Tiltrotator
DE102023119932A1 (de) * 2023-07-27 2025-01-30 OilQuick Deutschland KG Schnellwechselsystem

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
GB2009351B (en) * 1977-12-06 1982-05-26 Poclain Sa Device for the rotary assembly of a member controlled by pressurised fluid
DE3135150C1 (de) * 1981-09-04 1983-01-13 Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf Kupplung zum Ankuppeln von Arbeitsgeräten an Stiele von Hydraulikbaggern
US4542929A (en) * 1983-09-01 1985-09-24 Possinger Warren K Articulating clam type grapple for a backhoe
US4719975A (en) * 1986-02-28 1988-01-19 Labounty Kenneth R Rotating hammer-shear
US4958981A (en) * 1988-12-20 1990-09-25 Masatoshi Uchihashi Attachment connector assembly for hydraulic shovel type excavator
SE8901244D0 (sv) * 1989-04-07 1989-04-07 Hydraulik Ab Indextor Anordning vid maskiner
SE520498E8 (sv) * 2001-11-26 2015-10-20 Komatsu Forest Ab Anordning för upphängning av ett vridbart arbetsredskap
JP3827220B2 (ja) * 2002-05-23 2006-09-27 株式会社小松製作所 付属作業機用油圧回路
DE10361583A1 (de) * 2003-12-23 2005-07-21 Holp Gmbh Schnellwechselsystem zur wahlweisen Verbindung verschiedener Arbeitsgeräte mit einem Kranstiel

Non-Patent Citations (1)

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Title
See references of WO2007097698A1 *

Also Published As

Publication number Publication date
WO2007097698A1 (fr) 2007-08-30
SE529658C2 (sv) 2007-10-16
SE0600422L (sv) 2007-08-27
EP1994232A4 (fr) 2017-03-08

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