EP2561145B1 - Dispositif de rotation pour un équipement auxiliaire d'un engin de travaux publics - Google Patents

Dispositif de rotation pour un équipement auxiliaire d'un engin de travaux publics Download PDF

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Publication number
EP2561145B1
EP2561145B1 EP11714770.2A EP11714770A EP2561145B1 EP 2561145 B1 EP2561145 B1 EP 2561145B1 EP 11714770 A EP11714770 A EP 11714770A EP 2561145 B1 EP2561145 B1 EP 2561145B1
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EP
European Patent Office
Prior art keywords
stator
rotary
rotary device
duct
leadthrough
Prior art date
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Active
Application number
EP11714770.2A
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German (de)
English (en)
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EP2561145A2 (fr
Inventor
Günter Holp
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Holp GmbH
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Holp GmbH
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Publication of EP2561145B1 publication Critical patent/EP2561145B1/fr
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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

Definitions

  • the invention relates to a rotating device for an attachment to a work machine with a arranged on a boom of the working machine rotator having a rotatably held preferably in a housing stator and preferably rotatable about the stator by means of a worm gear rotor, and with a sweeping through the rotator Rotary feedthrough for the passage of a pressure medium via at least one media channel.
  • Such rotating devices for mounting, for example, on a boom of a construction machine are known in the market.
  • the rotary feedthrough is formed in two parts from a non-rotatable outer cylinder and a core leading the media channel and inserted into the stator, which in turn has no media channels and serves as a rotary bearing only the rotor.
  • the publication EP 2 123 831 discloses a rotary device according to the preamble of the independent claim. The problem with this design is that the rotary feedthrough does not provide enough space to pass large amounts of oil through several channels.
  • the object of the invention is to improve the devices known from the prior art and to design them in such a way that a compact design with a low overall height and yet high pressure medium throughput is achieved.
  • the invention is based on the idea to use the stator at the same time for the rotary mounting of the rotor and the rotary feedthrough, wherein the stator and rotating device optionally as one-piece or one-piece
  • the at least one media channel has a first channel section guided through the stator and a second channel section which communicates therewith and continues via the rotary feedthrough.
  • the media channels can be conveniently passed axially and deflected radially to the rotary feedthrough out without special fits would be required.
  • This also allows large channel cross-sections realize, and it can be passed through sufficient pressure medium even at a reduced height, which also improves the leverage ratios and in particular the introduction of force into the implement.
  • the channel sections are each formed by two mutually perpendicular, with respect to the axis of rotation of the rotary feedthrough axially parallel and radially extending channel holes.
  • a further improvement can be achieved in that the radial channel bores are shut off in the stator at the radially outer end and are open to an axial internal opening of the stator. In principle, however, it is also possible with increased manufacturing effort to introduce the radial bores as blind holes.
  • the first and second channel portion of the at least one media channel are fluidly connected to each other via an annular groove preferably formed in the stator, so that even with a rotational movement, a pressure medium transport is possible.
  • a plurality of annular grooves for connecting each of a first and second channel portion may be axially offset from one another, wherein the annular grooves should be sealed against each other by Gleitdichtringe.
  • first channel section can be connected to a machine-side hydraulic supply via a feed block fixed to the stator, and if the second channel section can be connected to the device side via a distributor block placed on the rotary feedthrough.
  • the stator is formed of a preferably metallic, one-piece solid material body or one-piece composite body and has a plurality of hollow cylindrical sections of different outer diameter. In this way, a particularly favorable arrangement of the media channels is possible at the same time high bearing stiffness.
  • the stator forms an outer radial bearing for the outer rotor and an inner radial bearing for the inner rotary feedthrough, wherein the rotor and the rotary leadthrough are rotatably mounted coaxially to a common axis of rotation on the stator.
  • the rotor via a rotary driver with the rotary feedthrough is preferably rotatably connected together with rotary play. As a result, a synchronous rotation can be ensured even with bearing wear.
  • a further advantageous embodiment provides that the rotary feedthrough is rotatably mounted in the stator as a preferably one-piece, at least partially cylindrical core.
  • the rotary feedthrough has a central axial bore for the passage of electrical lines.
  • the rotor on the output side is preferably connectable via a quick-change device with a replaceable attachment, so that a particularly variable use is possible.
  • the worm wheel of the worm gear is rotatably mounted on an axial shoulder acting as a sliding guide of the stator.
  • an axial and / or radial rolling bearing is conceivable.
  • the rotating device 10 shown in the drawing comprises a housing 12, a rotator 14 disposed therein, and a rotary union 16 penetrating the rotator as a unit for conveying media to an attachment, not shown, such as an excavator bucket, a mill, or a hydraulic hammer.
  • an attachment not shown, such as an excavator bucket, a mill, or a hydraulic hammer.
  • the housing 12 has an upper mounting plate 18, on which there are connecting means for mounting on an excavator handle attach.
  • the mounting plate 18 also allows the housing-fixed rotationally secured fixation of a stator 20 of the rotator 14 by means of screws 22 on the circumference of the stator 20, a rotor 24 of the rotator 14 is rotatably mounted.
  • the rotor 24 has a worm wheel 26 and a flange ring 28 fixedly screwed thereto for the attachment-side fixing of, for example, a quick coupler for the attachment.
  • the worm wheel 26 meshes with a worm 30 which is drivable by means of motor 32.
  • the rotary feedthrough 16 is rotatably mounted coaxially in the stator 20.
  • a feed block 34 which can be fixed to the stator 20 for a machine-side pressure oil connection, while a distributor block 36 fitted from below onto the rotary feedthrough 16 enables a device-side pressure oil connection.
  • a synchronous rotation is achieved via a driver 38, which is only indicated symbolically, between distributor block 36 or rotary feedthrough 16 and rotor 24, so that a torsion-free hydraulic connection is ensured.
  • About the driver 38 can be produced by overcoming a rotational play a positive connection, so that even when the worm wheel 26 wear a blocking-free operative connection is possible.
  • each media channel 40 has a stator-side or first channel section 42 and a second channel section 44, which communicates therewith and runs in the rotary feedthrough 16.
  • These channel sections 42, 44 are fluidly connected to each other via an annular groove 46 formed in the hollow cylindrical stator 20.
  • Fig. 3 shows the mounting situation of the rotating device 10 on a bucket 48 by means of mounting flanges 50.
  • a Pivoting movement and about the rotating device 10 in addition a rotational movement of the quick coupler 54 possible, with it being possible, for example, attach a not shown bucket as an attachment with little handling effort.
  • a compact construction with a low overall height is achieved, so that an optimal force introduction and precise positioning of the attachment is possible.
  • the stator 20 is integrally or integrally formed of a solid material.
  • a hollow cylindrical and externally stepped cylindrical metal body 55 is used. This fulfills a dual bearing function as an inner race on an axially stepped slide bearing surface 56 for the rotor 24 and the worm wheel 26 and at the same time - via internal radial bearings 58, 58 '- as a rotary bearing for the inside co-rotating rotary feedthrough 16.
  • This is also one piece or in one piece formed a solid material and provided with a lower radially projecting annular flange 60 for support on thrust bearings 62.
  • the bearings 58, 58 ', 62 may be designed as plain bearings or roller bearings.
  • stator 20 it is possible for the stator 20 to have a bearing ring 57 fixedly connected to a central cylinder part, for example by shrinking or pressing, as shown in FIG Fig. 4 is illustrated by dashed lines.
  • stator 20 consists of two parts, but are rigidly connected as a one-piece composite body.
  • the one-piece or one-piece stator 20 additionally permits a particularly favorable arrangement of the first (stator-side) channel sections 42, which are formed by channel passages 42 'and radial channel bores 42 ", which are orthogonally intersecting with respect to the axis of rotation 64, and radial in the sense of a simplified production through channel holes 42 "are plugged at its outer end and open at the inner end in each case an annular groove 46.
  • the axially offset annular grooves 46 are by Gleitdichtringe 66 made of plastic against each other and axially outward sealed.
  • the radial bores 42 are distributed at least predominantly in the radially widened section of the stator 20, so that there is sufficient installation space for the clogging and for the annular grooves 46.
  • the latter can then also be made radially recessed, so that At the same time, a high medium pressure without pressure oil losses can be maintained by the one-piece or one-piece design of the stator 20 and the rotary feedthrough 16.
  • the rotary feedthrough 16 is provided with a central axial bore 68 provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Gear Transmission (AREA)

Claims (14)

  1. Dispositif rotatif pour un équipement auxiliaire d'un engin de travail comprenant un rotateur (14), qui présente un stator (20) retenu de préférence de manière solidaire en rotation dans un boîtier (12) et un rotor (24) pouvant tourner autour du stator (20) de préférence au moyen d'une transmission à vis sans fin (26, 30), et comprenant un guidage rotatif (16) pour guider un fluide sous pression par le biais d'au moins un canal de fluide (40), l'au moins un canal de fluide (40) présentant une première partie de canal (42) guidée à travers le stator (20) et une deuxième partie de canal (44) communiquant avec celle-ci, et guidée plus avant par le biais du guidage rotatif (16), caractérisé en ce que le guidage rotatif (16) s'engageant à travers le rotateur (14) est supporté à rotation dans le stator (20) en tant que noyau au moins en partie cylindrique.
  2. Dispositif rotatif selon la revendication 1, caractérisé en ce que les parties de canal (42, 44) sont formées chacune par deux alésages de canal (42', 42" ; 44', 44") disposés à angle droit l'un par rapport à l'autre, s'étendant radialement et avec leurs axes parallèles par rapport à l'axe de rotation (64) du guidage rotatif (16).
  3. Dispositif rotatif selon la revendication 2, caractérisé en ce que les alésages de canal radiaux (42'') dans le stator (20) sont bloqués au niveau de l'extrémité radialement extérieure et sont ouverts vers un orifice interne axial du stator (20).
  4. Dispositif rotatif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la première et la deuxième partie de canal (42, 44) de l'au moins un canal de fluide (40) sont connectées fluidiquement l'une à l'autre par le biais d'une rainure annulaire (46) réalisée de préférence dans le stator (20).
  5. Dispositif rotatif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que plusieurs rainures annulaires (46) pour la connexion d'une première et d'une deuxième partie de canal respectives (42, 44) sont disposées de manière décalée axialement les unes par rapport aux autres et en ce que les rainures annulaires (46) sont étanchéifiées les unes par rapport aux autres par des bagues d'étanchéité glissantes (66).
  6. Dispositif rotatif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la première partie de canal (42) peut être raccordée par le biais d'un bloc d'alimentation (34) fixé au stator (20) à une alimentation hydraulique du côté de la machine et en ce que la deuxième partie de canal (44) peut être connectée du côté de l'appareil par un bloc distributeur (36) posé sur le guidage rotatif (16).
  7. Dispositif rotatif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le stator (20) est formé à partir d'un corps en matériau massif d'une seule pièce, ou en un corps composite d'une seule pièce, de préférence métallique.
  8. Dispositif rotatif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le stator (20) présente plusieurs parties cylindriques creuses de diamètres extérieurs différents.
  9. Dispositif rotatif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le stator (20) présente un palier radial extérieur (56) pour le rotor situé à l'extérieur (24) et un palier radial intérieur (58, 58') pour le guidage rotatif situé à l'intérieur (16), le rotor (24) et le guidage rotatif (16) étant montés de manière rotative sur le stator (20) coaxialement à un axe de rotation commun (64).
  10. Dispositif rotatif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le rotor (24) est connecté en commun de manière rotative par le biais d'un dispositif d'entraînement en rotation (38) au guidage rotatif (16), de préférence avec un jeu rotatif.
  11. Dispositif rotatif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le guidage rotatif (16) est monté de manière rotative dans le stator (20) sous la forme d'un noyau d'une seule pièce.
  12. Dispositif rotatif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le guidage rotatif (16) présente un alésage axial central (68) pour le passage de lignes électriques.
  13. Dispositif rotatif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le rotor (24) peut être connecté du côté de la sortie de préférence par le biais d'un dispositif de changement rapide (54) à un équipement auxiliaire remplaçable.
  14. Dispositif rotatif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que la roue à denture hélicoïdale (26) de la transmission à vis sans fin (26, 30) est montée à rotation sur un épaulement axial du stator (20) agissant en tant que dispositif de guidage coulissant.
EP11714770.2A 2010-04-17 2011-04-15 Dispositif de rotation pour un équipement auxiliaire d'un engin de travaux publics Active EP2561145B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010027895 DE102010027895A1 (de) 2010-04-17 2010-04-17 Drehvorrichtung für ein Anbaugerät an einer Arbeitsmaschine
PCT/EP2011/055977 WO2011128427A2 (fr) 2010-04-17 2011-04-15 Dispositif de rotation pour un équipement auxiliaire d'un engin de travaux publics

Publications (2)

Publication Number Publication Date
EP2561145A2 EP2561145A2 (fr) 2013-02-27
EP2561145B1 true EP2561145B1 (fr) 2014-06-11

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ID=44063456

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Application Number Title Priority Date Filing Date
EP11714770.2A Active EP2561145B1 (fr) 2010-04-17 2011-04-15 Dispositif de rotation pour un équipement auxiliaire d'un engin de travaux publics

Country Status (3)

Country Link
EP (1) EP2561145B1 (fr)
DE (1) DE102010027895A1 (fr)
WO (1) WO2011128427A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800003146A1 (it) * 2018-02-28 2019-08-28 Fives Oto Spa Giunto oleodinamico rotante

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011108526U1 (de) * 2011-11-30 2013-03-01 Kinshofer Gmbh Dreh-/Schwenkantrieb für Baggeranbauwerkzeuge mit Schnellwechsler
DE102012019250A1 (de) * 2012-09-28 2014-04-03 Ludwig Ehrhardt Gmbh Drehmodul
DE102013206574A1 (de) 2013-04-12 2014-10-16 Holp Gmbh Drehvorrichtung
WO2015155627A1 (fr) * 2014-04-10 2015-10-15 Ala Officine S.P.A. Distributeur de fluide rotatif à trajectoires multiples
DE102015107595A1 (de) * 2015-05-13 2016-11-17 Dr. Walter Hunger Beteiligungs GmbH & Co. Besitz KG Stator für eine Drehdurchführung sowie Herstellung eines Stators
DE102020121740A1 (de) 2020-08-19 2022-02-24 Holp Gmbh Drehvorrichtung
DE102022103669A1 (de) 2022-02-16 2023-08-17 Holp Gmbh Drehvorrichtung
DE102022120932A1 (de) 2022-08-18 2024-02-29 Kiesel Technology Gmbh Anbauvorrichtung für einen Stiel eines Baggers

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE2838428C2 (de) * 1978-09-02 1984-05-24 Fa. Heinz Thumm, 7012 Fellbach Drehvorrichtung für hängende Lasten
DE3146695A1 (de) * 1981-11-25 1983-07-07 Heinz Thumm Ölhydraulische Antriebe GmbH, 7012 Fellbach Hydromotor, insbesondere fuer greiferdreheinrichtung an baggern oder kraenen
DE3146693A1 (de) * 1981-11-25 1983-06-01 Heinz Thumm Ölhydraulische Antriebe GmbH, 7012 Fellbach Drehvorrichtung, insbesondere fuer greif- und hebeorgane an baggern und kraenen
DE3146696A1 (de) * 1981-11-25 1983-06-01 Heinz Thumm Ölhydraulische Antriebe GmbH, 7012 Fellbach Drehvorrichtung fuer einen baggergreifer
DE202004019909U1 (de) * 2004-12-23 2006-04-27 Heinz Thumm Ölhydraulische Antriebe GmbH Drehvorrichtung für Lastaufnahmemittel
DE102008025026A1 (de) * 2008-05-24 2009-11-26 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Bagger-Zusatzgerät
ATE513125T1 (de) * 2008-08-29 2011-07-15 Baltrotors Sia Kolbendrehmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800003146A1 (it) * 2018-02-28 2019-08-28 Fives Oto Spa Giunto oleodinamico rotante

Also Published As

Publication number Publication date
EP2561145A2 (fr) 2013-02-27
WO2011128427A3 (fr) 2011-12-29
DE102010027895A1 (de) 2011-10-20
WO2011128427A2 (fr) 2011-10-20

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