EP0809735B1 - Mecanisme vireur pour benne preneuse - Google Patents

Mecanisme vireur pour benne preneuse Download PDF

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Publication number
EP0809735B1
EP0809735B1 EP96902986A EP96902986A EP0809735B1 EP 0809735 B1 EP0809735 B1 EP 0809735B1 EP 96902986 A EP96902986 A EP 96902986A EP 96902986 A EP96902986 A EP 96902986A EP 0809735 B1 EP0809735 B1 EP 0809735B1
Authority
EP
European Patent Office
Prior art keywords
bearing
stator
rotor
accordance
bearings
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
EP96902986A
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German (de)
English (en)
Other versions
EP0809735A1 (fr
Inventor
Heinz Thumm
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.)
Heinz Thumm Oelhydraulische Antriebe GmbH
Original Assignee
Heinz Thumm Oelhydraulische Antriebe GmbH
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Filing date
Publication date
Priority claimed from DE19505585A external-priority patent/DE19505585A1/de
Application filed by Heinz Thumm Oelhydraulische Antriebe GmbH filed Critical Heinz Thumm Oelhydraulische Antriebe GmbH
Publication of EP0809735A1 publication Critical patent/EP0809735A1/fr
Application granted granted Critical
Publication of EP0809735B1 publication Critical patent/EP0809735B1/fr
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
    • E02F3/3677—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation
    • 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

Definitions

  • the invention relates to a device for rotation one connected to the boom of an excavator or crane Gripper or the like tool with a the cantilever-connected stator, one with the gripper connectable to the stator by means of a bearing arrangement a vertical axis rotatably mounted rotor, with a arranged between stator and rotor, by over two stator connections from the stator, through liquid-tight rotating unions and through one connected to the rotor, if necessary, in a rotationally fixed manner Hydraulic ducts with hydraulic oil that pass through the distributor Actuable hydraulic drive mechanism and with at least two via stator-side connections through the stator and through liquid-tight rotating unions through to and through the rotor hydraulic channels to the rotor-side connections, preferably for hydraulic gripper actuation.
  • a device for rotation is already known from DE-A-2 838 346 known.
  • a rotating device of this type is also known (EP-B-0 080 670), with the bearing arrangement inside the rotating device is arranged that for their maintenance Stator, rotor and drive mechanism completely must be disassembled. It also results in the known design, a relatively large height with a correspondingly large weight.
  • the invention is based on the object the known rotary devices of the beginning specified type to improve that at a compact flat design maintenance especially in the Area of bearing arrangements and wearing parts is simplified.
  • the solution according to the invention is based on the idea that the entire bearing assembly is radially outside of the drive mechanism arranged essentially at its height is.
  • the bearing assembly be radially outside of the drive mechanism at its level on inner part of the device (stator or rotor) radially outwardly protruding collar and one on the external part of the device (rotor or stator) arranged, encompassing the bearing ring in a form-fitting manner, has radially inwardly open bearing groove, wherein between Bearing ring and bearing groove as roller bearings and / or Plain bearings and / or hydrostatic bearings trained bearing elements are inserted or molded.
  • the external device part in the area the bearing groove appropriately formed in two parts.
  • An advantageous embodiment of the invention provides before that between the bearing collar and bearing groove two thrust bearings and a radial bearing are arranged, at least one of the thrust bearings as a roller bearing, preferably can be designed as a needle bearing, while the other Thrust bearings as plain bearings or as hydrostatic bearings can be trained.
  • Another embodiment provides that between Bearing ring and bearing groove two angular bearings arranged are as roller bearings, preferably as tapered roller bearings or ball bearings can be formed. Basically, it is also possible to use the angular bearings as To design plain bearings or as a hydrostatic bearing.
  • a third variant of the invention provides before that the bearing ring and the bearing groove complementary curved bearing surfaces for receiving a plain bearing or have a hydrostatic bearing.
  • the Stator has the bearing ring and the rotor has the bearing groove.
  • a further relief in the maintenance of the turning device can be achieved in that at least one Part of the from the stator via the rotating unions to the rotor leading hydraulic channels the drive mechanism and the bearing arrangement penetrates centrally and that a in the assembled state of the stator, rotor and drive mechanism from the outside for access at least to some of the rotary unions and / or to Distributors and their seals accessible through a Locking piece lockable central axis assembly opening is provided.
  • the assembly opening basically can also be arranged on the stator side , it is advantageous to place them on the gripper side Arrange the front of the rotor.
  • the drive mechanism is preferably a hydraulic one Axial or radial piston engine, wherein the bearing rim at the level of the drive piston or -balls is arranged.
  • Another embodiment variant provides that the Drive mechanism as a hydraulic rotary vane motor is formed, the bearing rim at the level of Swivel wing is arranged.
  • the drive motor as a hydrostatic internal gear motor or Inner rotor is formed, the bearing ring on the height of the motor gear is arranged.
  • the turning device shown in the drawing are intended for excavator grapples where high tensile, compressive and moment loads occur. They essentially exist from a with an excavator boom, not shown connectable stator 1, one with the stator via a rotary connection 4 connected rotor 6, on the an excavator grab, not shown, can be attached, and a drive mechanism acting between the stator and rotor 6 8th.
  • the rotary connection 4 has in the exemplary embodiments 1 to 5 one at the level of the drive mechanism 8 projecting radially on the stator 1 Bearing ring 40 and one arranged on the rotor, the Bearing ring 40 encompassing a form-fitting, radial to inside open bearing groove 42, between the bearing ring 40 and bearing groove 42 different, as roller bearings, plain bearings or hydrostatic bearings trained bearing elements are inserted or molded.
  • an upper axial between bearing ring 40 and bearing groove 42 Needle bearing 44, a radial needle bearing 46 and a Lower axial slide bearing 48 is provided.
  • the embodiment 2 is the radial one on the right Needle bearing 46 replaced by a plain bearing 46 ', while in the embodiment variant shown in the left area of FIG. 2 the lower slide bearing 48 by a needle bearing 48 'is replaced.
  • FIG Bearing ring 40 and the bearing groove 42 complementary to each other curved bearing surfaces it is also possible in the sense of FIG Bearing ring 40 and the bearing groove 42 complementary to each other curved bearing surfaces to accommodate a to provide correspondingly curved plain bearing 58.
  • the Slide bearings 46 ', 48 and 58 can in principle also be used as Hydrostatic bearings are trained.
  • the hydraulic channels 65 ', 65 "on the rotor side lead to rotor-side connections 66 ', 66' 'to which, if necessary with the interposition of one with the rotor Screws 67 and driver pin 68 connectable Connection adapter hydraulic lines for gripper actuation can be connected.
  • the rotary unions for the Gripper hydraulics are in the embodiments shown by two the stator 1 and the rotor 6 centrally and coaxially penetrating pipe sections 32, 33 are formed, with their ends in the stator side or rotor side Step holes 19 and 69 engage and float there are stored.
  • a floating radial distributor 70 is also provided, of the pipe sections 32, 33 of the rotary union 30 is accessed centrally.
  • the rotary unions 30 are with their pipe sections 32, 33 and their sealing rings even when assembled Stator, rotor and drive mechanism from the outside forth about a closable by a closure piece 90 Assembly opening 91 accessible.
  • the closure piece 90 has an axial bore forming the assembly opening 91 of the rotor can be used liquid-tight Pin 92 on the ring flange 93, screws 94 and driver pins 95 can be attached to the rotor 6.
  • On the inside of the closure piece 90 has one open to the interior of the device and coaxial to the axis of rotation Blind hole or stepped bore 69 for receiving the one end of the pipe sections 32, 33. Also points the closure piece 90 the two to the rotor side Connections 66 ', 66 "for the gripper hydraulics leading Channel sections 65 ', 65 ", one of which essentially axially central and the other eccentrically arranged is.
  • Figs. 1 and 2 included a drive mechanism designed as an axial piston drive 8, which is a plurality of on one Incorporation of the stator 1 at equal distances from each other arranged axial pressure cylinder 101, in which one piston 102 each and one against the end face of the Piston 102 abutting, through a cylinder opening more or less far reaching ball 103 is arranged are.
  • the pistons 102 are on the back with Hydraulic fluid acts on the hydraulic channels 104 enters the impression cylinder 101.
  • the Balls 103 lie with their out of the cylinder opening protruding part against that along an incircle of the rotor with undulating cam track 106 axial deflections.
  • the cam track determines too the stroke of the pistons 102 at any time.
  • Axial piston drive can also be a radial piston drive, a rotary leaf drive or a hydraulic internal gear drive (Inner rotor) as drive mechanism 8 be used.
  • the invention refers to a device for rotation one connected to the boom of an excavator or crane Gripper or the like tool.
  • the turning device has a stator 1, one on the stator 1 by means of a bearing arrangement 4 about a vertical axis rotatably mounted rotor 6, one between the stator and Hydraulic drive mechanism 8 arranged in the rotor and at least two rotary unions 30 for the gripper actuation on.
  • a compact design with less Ensuring height is according to the invention suggested that the entire bearing assembly 4 radially arranged outside the drive mechanism at its level is.
  • the bearing arrangement 4 expediently has one protruding radially outward on the stator 1 like a collar Bearing ring 40 and a bearing ring arranged on the rotor 6 40 form-fitting, radially inward open bearing groove 42. Between the bearing ring and the bearing groove are designed as roller bearings and / or plain bearings Bearing elements inserted or molded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Earth Drilling (AREA)

Claims (16)

  1. Dispositif pour la mise en rotation d'un grappin, ou bien d'un outil analogue, relié au bras d'une pelleteuse ou d'une grue, comprenant un stator (1) susceptible d'être relié au bras, un rotor (6) susceptible d'être relié au grappin et monté en rotation autour d'un axe vertical sur le stator (1) au moyen d'un agencement de palier (4), un mécanisme d'entraínement (8) hydraulique agencé entre le stator (1) et le rotor (6), susceptible d'être alimenté en huile hydraulique via deux canaux hydrauliques (16', 16", 71', 71") partant de raccords (16) du côté stator et traversant le stator (1), des traversées rotatives (30) étanches aux liquides, et un répartiteur (70) relié en option solidairement en rotation avec le rotor (6), et comprenant au moins deux canaux hydrauliques (15', 15, 65', 65") destinés de préférence à l'actionnement hydraulique du grappin, menés par l'intermédiaire de raccords (15) côté stator à travers le stator (1) et jusqu'au rotor (6) en traversant des traversées rotatives (30) étanches aux liquides, et en traversant le rotor jusqu'à des raccords (66', 66") côté rotor, caractérisé en ce que l'agencement de palier (4) comporte radialement à l'extérieur du mécanisme d'entraínement (8) et à sa hauteur, une couronne de palier (40) sur le stator (1) qui dépasse à la manière d'une collerette radialement vers l'extérieur, et une gorge de palier (42) ménagée dans le rotor (6) ouverte radialement vers l'intérieur et entourant la couronne de palier (40) en coopération de formes, ou inversement, et en ce que des éléments de palier, réalisés sous forme de paliers à roulement (44, 46, 48') et/ou de paliers à coulissement (46', 48 ; 58) et/ou de paliers hydrostatiques, sont mis en place ou formés entre la couronne de palier (40) et la gorge de palier (42).
  2. Dispositif selon la revendication 1, caractérisé en ce que le rotor (6) ou le stator (1) est subdivisé en deux parties dans la région de la gorge de palier (42).
  3. Dispositif selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que deux paliers axiaux (44, 48) et un palier radial (46) sont agencés entre la couronne de palier (40) et la gorge de palier (42).
  4. Dispositif selon la revendication 3, caractérisé en ce que l'un au moins des paliers axiaux (44, 48') est réalisé sous forme de palier à roulements, de préférence de palier à aiguilles.
  5. Dispositif selon l'une ou l'autre des revendications 3 et 4, caractérisé en ce que le palier radial est réalisé sous forme de palier à roulements, de préférence de palier à aiguilles radiales (46), de palier à coulissement (46'), ou de palier hydrostatique.
  6. Dispositif selon l'une des revendications 3 à 5, caractérisé en ce que l'un au moins des paliers axiaux (48) est réalisé sous forme de palier à coulissement, ou de palier hydrostatique.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que deux paliers obliques (50, 52 ; 54, 56) sont agencés entre la couronne de palier (40) et la gorge de palier (42).
  8. Dispositif selon la revendication 7, caractérisé en ce que les paliers obliques sont réalisés sous forme de paliers à roulements, de préférence sous forme de paliers à rouleaux coniques (50, 52), ou de paliers à billes (54, 56).
  9. Dispositif selon la revendication 7, caractérisé en ce que les paliers obliques sont réalisés sous forme de paliers à coulissement, ou de paliers hydrostatiques.
  10. Dispositif selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que la couronne de palier (40) et la gorge de palier (42) présentent des surfaces de palier incurvées complémentaires destinées à recevoir un palier à coulissement (58) à courbure correspondante, ou bien un palier hydrostatique.
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que le stator (1) comporte la couronne de palier (40) et le rotor (6) comporte la gorge de palier (42).
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce qu'au moins une partie des canaux hydrauliques (15', 16', 15", 16") menant depuis le stator (1) jusqu'au rotor (6) via les traversées rotatives (30) traverse au centre le mécanisme d'entraínement (8) et l'agencement de palier (4), et en ce qu'il est prévu une ouverture de montage (91) située sur l'axe et susceptible d'être obturée par un obturateur (90), ladite ouverture étant accessible depuis l'extérieur dans l'état assemblé du stator (1) et du rotor (6) ainsi que du mécanisme d'entraínement (8), pour l'accès vers au moins une partie des traversées rotatives (30) et/ou vers le distributeur (70), et vers leurs étanchements (31, 97).
  13. Dispositif selon la revendication 12, caractérisé en ce que l'ouverture de montage (91) est agencée sur la face frontale du rotor (6) tournée côté grappin.
  14. Dispositif selon l'une des revendications 1 à 13, caractérisé en ce que le mécanisme d'entraínement est réalisé sous la forme d'un entraínement hydraulique à pistons axiaux ou radiaux, et en ce que la couronne de palier (40) est agencée à la hauteur des pistons ou des billes d'entraínement (102, 103).
  15. Dispositif selon l'une des revendications 1 à 13, caractérisé en ce que le mécanisme d'entraínement est réalisé sous la forme d'entraínement rotatif à pales tournantes, et en ce que la couronne de palier (40) est agencée à la hauteur de ses pales tournantes.
  16. Dispositif selon l'une des revendications 1 à on 13, caractérisé en ce que le mécanisme d'entraínement est réalisé sous la forme d'un entraínement hydraulique à couronne dentée intérieure, ou bien à rotor intérieur, et en ce que la couronne de palier (40) est agencée à la hauteur de ses dentures d'entraínement.
EP96902986A 1995-02-18 1996-02-19 Mecanisme vireur pour benne preneuse Expired - Lifetime EP0809735B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19505585 1995-02-18
DE19505585A DE19505585A1 (de) 1993-10-20 1995-02-18 Drehvorrichtung für Baggergreifer
PCT/EP1996/000684 WO1996026326A1 (fr) 1995-02-18 1996-02-19 Mecanisme vireur pour benne preneuse

Publications (2)

Publication Number Publication Date
EP0809735A1 EP0809735A1 (fr) 1997-12-03
EP0809735B1 true EP0809735B1 (fr) 1999-08-25

Family

ID=7754376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96902986A Expired - Lifetime EP0809735B1 (fr) 1995-02-18 1996-02-19 Mecanisme vireur pour benne preneuse

Country Status (3)

Country Link
EP (1) EP0809735B1 (fr)
AT (1) ATE183793T1 (fr)
WO (1) WO1996026326A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004019909U1 (de) * 2004-12-23 2006-04-27 Heinz Thumm Ölhydraulische Antriebe GmbH Drehvorrichtung für Lastaufnahmemittel

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520498E8 (sv) 2001-11-26 2015-10-20 Komatsu Forest Ab Anordning för upphängning av ett vridbart arbetsredskap
ATE555052T1 (de) 2006-12-27 2012-05-15 Caterpillar Inc Drehteil für eine strömungsmaschine und rotator damit
ATE513125T1 (de) 2008-08-29 2011-07-15 Baltrotors Sia Kolbendrehmaschine
DE102009019660A1 (de) * 2009-04-30 2010-11-04 Heinz Thumm Drehvorrichtung für Lastaufnahmemittel, wie Baggergreifer od. dgl.
DE202010010857U1 (de) * 2010-07-30 2010-10-21 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Fräseinrichtung
SE539110C2 (sv) * 2013-04-10 2017-04-11 Indexator Rotator Sys Ab Svivelanordning vid en rotator
WO2015155627A1 (fr) * 2014-04-10 2015-10-15 Ala Officine S.P.A. Distributeur de fluide rotatif à trajectoires multiples

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357765A1 (fr) * 1976-07-05 1978-02-03 Poclain Sa Verin a tige de piston en deux parties
DE2838428C2 (de) * 1978-09-02 1984-05-24 Fa. Heinz Thumm, 7012 Fellbach Drehvorrichtung für hängende Lasten
DE2838346C2 (de) * 1978-09-02 1985-02-14 Fa. Heinz Thumm, 7012 Fellbach Drehvorrichtung für einen Baggergreifer o.dgl.
DE3132489A1 (de) * 1981-08-17 1983-03-03 Freund, Pierre, 8702 Veitshöchheim Hydraulikmotor fuer den drehantrieb eines bagger- und krangreifers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004019909U1 (de) * 2004-12-23 2006-04-27 Heinz Thumm Ölhydraulische Antriebe GmbH Drehvorrichtung für Lastaufnahmemittel
EP1674420A1 (fr) 2004-12-23 2006-06-28 Heinz Thumm Oelhydraulische Antriebe GmbH Dispositif de rotation pour moyens de prise de charge

Also Published As

Publication number Publication date
EP0809735A1 (fr) 1997-12-03
ATE183793T1 (de) 1999-09-15
WO1996026326A1 (fr) 1996-08-29

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