EP0429413B1 - Articulation avec joint hydraulique tournant, en particulier pour machines mobiles de travaux publics - Google Patents

Articulation avec joint hydraulique tournant, en particulier pour machines mobiles de travaux publics Download PDF

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Publication number
EP0429413B1
EP0429413B1 EP90830534A EP90830534A EP0429413B1 EP 0429413 B1 EP0429413 B1 EP 0429413B1 EP 90830534 A EP90830534 A EP 90830534A EP 90830534 A EP90830534 A EP 90830534A EP 0429413 B1 EP0429413 B1 EP 0429413B1
Authority
EP
European Patent Office
Prior art keywords
hollow internal
internal body
articulation
external
reduction gear
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
EP90830534A
Other languages
German (de)
English (en)
Other versions
EP0429413A1 (fr
Inventor
Maurizio Costantini
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.)
VANZINI, ODDONE
Original Assignee
Vanzini Oddone
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Filing date
Publication date
Application filed by Vanzini Oddone filed Critical Vanzini Oddone
Publication of EP0429413A1 publication Critical patent/EP0429413A1/fr
Application granted granted Critical
Publication of EP0429413B1 publication Critical patent/EP0429413B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • B66C23/86—Slewing gear hydraulically actuated
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • E02F9/12—Slewing or traversing gears
    • E02F9/121—Turntables, i.e. structure rotatable about 360°

Definitions

  • the invention relates to an articulation with rotating hydraulic connection, in particular for mobile work machines.
  • This kind of articulation performs the task of reciprocally connecting two parts of the machine permitting the unlimited two-way rotation of the one with regard to the other.
  • some types of mobile work machine such as for example articulated-arm diggers and cranes, on which a hydraulically-activated articulated arm is placed on a rotatable platform which is pivoted normally about a vertical axis.
  • the articulation between the two parts is normally effected by means of a bearing of considerable diameter on one part of which a crown wheel is arranged which meshes with a sprocket on the other part which is commanded to rotate by a fixed motor reducer, evidently eccentrically disposed with respect to the rotation axis.
  • the rotating joint completely separated from the bearing, but coaxially situated with respect to it, ensures the hydraulic connection between the components of the hydraulic circuit situated on the two parts of the machine.
  • the other negative characteristic relates to the mass and weight of the solutions embraced in the prior art.
  • the document FR-A- 1 553 597 shows an articulation with rotating hydraulic connection, in particular for mobile work machines which comprises :
  • the present invention seeks to obviate the drawbacks and shortcomings in the prior art, with an articulation with rotating hydraulic connection which groups together in a single compact device the principal articulation components.
  • fig 1 shows the external body of an articulation with rotating hydraulic connection able to be solidly mounted on one of the two parts reciprocally connected by the articulation; for example, in the case of a mobile work machine, to the wheel-mounted frame.
  • the external body 1 is equipped on its upper part with a flange 23 having through bores 24 for connection by means of bolts.
  • the external body 1 has beneath the flange 23 an internal cylindrical surface 3 having annular channels 2 in communication with an external conduit 30.
  • a hollow internal body 4 is coaxially and rotatingly coupled to the external body 1 and has an internal cylindrical surface 5 shaped and arranged to be in face-on contact with the internal cylindrical surface 3.
  • the open ends 6 of hydraulic conduits 7 envisaged solidly in the hollow internal body 4 are arranged in correspondence with the external cylindrical surface 5.
  • Each hydraulic conduit 7 has an open end 6 located in such a way that it faces one of the annular channels 2 bored into the external body 1.
  • the rotating seal between the annular channels 2 and the open ends 6 is circumferentially guaranteed by seals 25.
  • the hollow internal body 4 is supported to the external body 1 by means of bearings 26 and 27.
  • a hydraulic motor 8 is fixed to the hollow internal body 4, which is axialsymmetric in form and has in its upper part a flange 28 for its connection with the upper part of the machine.
  • the hydraulic motor 8 housed in the internal cavity of the hollow internal body 4, activates a shaft 9 which is arranged coaxially with the cylindrical surfaces 3 and 5 and is engaged to the hollow internal body 4 by means of a hydraulically activated clutch 10.
  • the clutch 10 is of the disk-type and is kept in the engaged position by a system of coaxial springs 11 which act upon a disk collar 12 with antagonistic action with respect to that of the pressurised fluid introduced into the annular channel 13 of a jack, whose annular piston 14 is coaxially slidable and sealed inside a cylindrical chamber 15 bored coaxially in the hollow internal body 4.
  • the shaft 9 is the drive-shaft of an epicyclic reduction gear, indicated by 16, which reciprocally connects the hollow internal body 4 with the external body 1.
  • the epicyclic reduction gear 16 comprises a satellite carrier 17 which is solid to the hollow internal body 4 and an internally cogged crown wheel 18, to which the satellites 19 mesh, solid to the external body 1 and arranged coaxially to the rotation axis of the shaft 9.
  • the clutch 10 is kept in the engaged position by the action of the springs 11. Disengagement is performed by sending pressurised fluid into the chamber 13 whenever the rotation command is activated to produce rotation in either direction of the hollow internal body 4 with respect to the external body 1. In this situation the shaft 9 is free to rotate with respect to the hollow internal body 4 and thus to produce the rotation of the latter with respect to the external body 1 according to the reduction rapport of the epicyclic reduction gear 16.
  • the group is extremely compact, without substantial limits to transmission power and to the number of rotating hydraulic connections between the two mobile parts of the articulation.
  • a more normal reduction gear 20 is arranged, in which the chassis 21 is solid to the hollow internal body 4 while the conduit shaft 22 is mounted to the external body 1 and coaligned with the drive shaft 9.
  • Both illustrated embodiments are characterised by extreme compactness and permit of great ease and rationality of assembly and dissembly.

Landscapes

  • 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)
  • Joints Allowing Movement (AREA)
  • Hydraulic Motors (AREA)
  • Retarders (AREA)
  • Gear Transmission (AREA)
  • Component Parts Of Construction Machinery (AREA)

Claims (3)

  1. Une articulation avec joint hydraulique tournant, en particulier pour machines mobiles de travaux publics qui comprend:
    - un corps extérieur (1) qui a, en correspondance avec sa propre surface cylindrique interne (3), les rainures annulaires (2) dudit joint;
    - un corps intérieur creux (4) qui est supporté et accouplé d'une manière coaxiale et tournante audit corps extérieur (1) et qui a une surface cylindrique externe (5); sur cette surface (5) sont situées les extrémités ouvertes (6) de différents conduits hydrauliques (7), ces extrémités ouvertes (6) se présentant sur lesdites rainures annulaires (2); ledit corps intérieur creux (4) ayant un moteur hydraulique (8) fixé sur lui pour produire le mouvement de rotation par rapport audit corps extérieur (1);
    - un moteur de transmission, qui comprend: un arbre de commande (9) mis en action directement par ledit moteur hydraulique (8), disposé coaxialement aux surfaces cylindriques (3) et (5); un engrenage démultiplicateur (16) coaxial qui relie réciproquement le corps extérieur (1) avec le corps intérieur creux (4) et qui a, comme arbre de commande, ledit arbre (9);
    caractérisé en ce fait que ledit moteur hydraulique (8) est placé dans la cavité interne dudit corps intérieur creux (4) et que ledit arbre de commande (9) peut être embrayé audit corps intérieur creux (4) au moyen d'un embrayage (10) qui peut être désembrayé hydrauliquement et qui est du type à disque et qui est tenu dans la position engrenée par un système de ressorts coaxiaux (11) qui agissent sur un collier du disque (12) avec une action antagoniste par rapport à celle du fluide pressurisé qui est introduit dans le canal annulaire (13) d'un vérin hydraulique, dont le piston annulaire (14), qui peut glisser d'une façon coaxiale et qui est scellé à l'intérieur de la chambre cylindrique (15) trouée coaxialement dans le corps intérieur creux (4), est d'un seul tenant avec le collier du disque (12).
  2. Une articulation comme celle de la revendication 1, dans laquelle ledit engrenage démultiplicateur est un engrenage démultiplicateur épicycloïdal (16) dans lequel l'arbre de commande (9) est d'un seul tenant avec l'arbre du moteur, le porteur de satellite (17) est d'un seul tenant avec le corps intérieur creux (4) et la roue de la couronne endentée à l'intérieur (18), avec laquelle les satellites (19) s'engrènent, est d'un seul tenant avec le corps extérieur (1).
  3. Une articulation comme celle de la revendication 1, dans laquelle ledit engrenage démultiplicateur est un engrenage démultiplicateur (20) avec au moins deux phases dans lesquelles le châssis (21) est d'un seul tenant avec le corps intérieur creux (4) et l'arbre de conduite (22) est fixé au corps extérieur (1) coaxialement à l'arbre de commande (9).
EP90830534A 1989-11-20 1990-11-19 Articulation avec joint hydraulique tournant, en particulier pour machines mobiles de travaux publics Expired - Lifetime EP0429413B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT04017589A IT1236282B (it) 1989-11-20 1989-11-20 Articolazione con collegamento idraulico rotante in particolare per macchine operatrici.
IT4017589 1989-11-20

Publications (2)

Publication Number Publication Date
EP0429413A1 EP0429413A1 (fr) 1991-05-29
EP0429413B1 true EP0429413B1 (fr) 1994-06-08

Family

ID=11248963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90830534A Expired - Lifetime EP0429413B1 (fr) 1989-11-20 1990-11-19 Articulation avec joint hydraulique tournant, en particulier pour machines mobiles de travaux publics

Country Status (5)

Country Link
EP (1) EP0429413B1 (fr)
AT (1) ATE106850T1 (fr)
DE (1) DE69009691T2 (fr)
ES (1) ES2057518T3 (fr)
IT (1) IT1236282B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9400767U1 (de) * 1994-01-18 1994-04-28 Ec Engineering + Consulting Spezialmaschinen Gmbh, 89079 Ulm Drehdurchführung
DE10025693A1 (de) * 2000-05-24 2001-11-29 Zahnradfabrik Friedrichshafen Drehwerkantrieb
DE10309258B4 (de) * 2003-03-03 2006-10-12 Archimedes Voulgaris Hydraulikmotorenbau Gmbh Einrichtung zur Befestigung und zum Drehantrieb eines Greiferwerkzeugs
DE102004010300A1 (de) * 2004-03-03 2005-09-22 Linde Ag Drehwerksantrieb in Zentralbauweise
RU2468983C1 (ru) * 2011-05-31 2012-12-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) Поворотное устройство несущей стойки гидроманипулятора
JP5980711B2 (ja) * 2013-03-29 2016-08-31 住友重機械工業株式会社 ショベル
SE547879C2 (en) * 2023-11-14 2025-12-16 Indexator Rotator Sys Ab Rotator for carrying a hydraulic tool and a vehicle comprising a rotor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1019687A (en) * 1963-10-03 1966-02-09 Bergens Mek Verksted Arrangement for pivoting the derrick or extension arm in a crane, especially a ship's crane
FR1553597A (fr) * 1967-03-01 1969-01-10
US3662623A (en) * 1970-08-19 1972-05-16 Lorence Mfg Corp Turntable drive mechanism
FR2122294B1 (fr) * 1971-01-18 1975-06-06 Poclain Sa
US3819018A (en) * 1972-12-04 1974-06-25 Caterpillar Tractor Co Brake assembly for excavator swing transmission
US3877743A (en) * 1973-06-25 1975-04-15 Norman Allen Johnson Fluid operated grapple
US4009643A (en) * 1975-02-26 1977-03-01 Heinz Thumm Hydraulic motor for rotating the bucket of an excavating machine
DE3135150C1 (de) * 1981-09-04 1983-01-13 Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf Kupplung zum Ankuppeln von Arbeitsgeräten an Stiele von Hydraulikbaggern
US4426110A (en) * 1981-09-17 1984-01-17 Mar Hook & Equipment, Inc. Continuous rotation hydraulic grapple

Also Published As

Publication number Publication date
IT8940175A0 (it) 1989-11-20
EP0429413A1 (fr) 1991-05-29
ATE106850T1 (de) 1994-06-15
IT1236282B (it) 1993-02-02
DE69009691D1 (de) 1994-07-14
ES2057518T3 (es) 1994-10-16
IT8940175A1 (it) 1991-05-20
DE69009691T2 (de) 1994-10-20

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