EP0429413A1 - 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
EP0429413A1
EP0429413A1 EP90830534A EP90830534A EP0429413A1 EP 0429413 A1 EP0429413 A1 EP 0429413A1 EP 90830534 A EP90830534 A EP 90830534A EP 90830534 A EP90830534 A EP 90830534A EP 0429413 A1 EP0429413 A1 EP 0429413A1
Authority
EP
European Patent Office
Prior art keywords
hollow internal
articulation
internal body
reduction gear
external
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.)
Granted
Application number
EP90830534A
Other languages
German (de)
English (en)
Other versions
EP0429413B1 (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
Vemac SNC Di Malagoli Uliano & C
Vanzini Oddone
VE MA C SNC DI MALAGOLI ULIA
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 Vemac SNC Di Malagoli Uliano & C, Vanzini Oddone, VE MA C SNC DI MALAGOLI ULIA filed Critical Vemac SNC Di Malagoli Uliano & C
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
Expired - Lifetime legal-status Critical Current

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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 part of the machine.
  • the other negative characteristic relates to the mass and weight of the solutions embraced in the prior art.
  • 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 holow internal body 4 is coaxially and rotatingly coupled to the external body 1 and has an external 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)
  • Gear Transmission (AREA)
  • Hydraulic Motors (AREA)
  • Retarders (AREA)
  • Component Parts Of Construction Machinery (AREA)
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 true EP0429413A1 (fr) 1991-05-29
EP0429413B1 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)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663556A1 (fr) * 1994-01-18 1995-07-19 EC Engineering + Consulting Spezialmaschinen GmbH Jonction rotative
DE10025693A1 (de) * 2000-05-24 2001-11-29 Zahnradfabrik Friedrichshafen Drehwerkantrieb
WO2004078631A1 (fr) * 2003-03-03 2004-09-16 Christos Voulgaris Dispositif de fixation comprenant un entrainement en rotation utilise pour un outil a griffes
FR2869025A1 (fr) * 2004-03-03 2005-10-21 Linde Ag Entrainement de dispositif de rotation a construction centrale
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
JP2014199107A (ja) * 2013-03-29 2014-10-23 住友重機械工業株式会社 ショベル

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271941B (de) * 1963-10-03 1968-07-04 Bergens Mek Verksted Hydraulischer Drehmotor zum Verschwenken des Auslegers eines Kranes
FR1553597A (fr) * 1967-03-01 1969-01-10
FR2104521A5 (fr) * 1970-08-19 1972-04-14 Lorence Manufact Corp
FR2122294A1 (fr) * 1971-01-18 1972-09-01 Poclain Sa
FR2209017A1 (fr) * 1972-12-04 1974-06-28 Caterpillar Tractor Co
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271941B (de) * 1963-10-03 1968-07-04 Bergens Mek Verksted Hydraulischer Drehmotor zum Verschwenken des Auslegers eines Kranes
FR1553597A (fr) * 1967-03-01 1969-01-10
FR2104521A5 (fr) * 1970-08-19 1972-04-14 Lorence Manufact Corp
FR2122294A1 (fr) * 1971-01-18 1972-09-01 Poclain Sa
FR2209017A1 (fr) * 1972-12-04 1974-06-28 Caterpillar Tractor Co
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663556A1 (fr) * 1994-01-18 1995-07-19 EC Engineering + Consulting Spezialmaschinen GmbH Jonction rotative
US5462083A (en) * 1994-01-18 1995-10-31 Ec Engineering + Consulting Spezialmaschinen Gmbh Rotary passage
DE10025693A1 (de) * 2000-05-24 2001-11-29 Zahnradfabrik Friedrichshafen Drehwerkantrieb
WO2004078631A1 (fr) * 2003-03-03 2004-09-16 Christos Voulgaris Dispositif de fixation comprenant un entrainement en rotation utilise pour un outil a griffes
FR2869025A1 (fr) * 2004-03-03 2005-10-21 Linde Ag Entrainement de dispositif de rotation a construction centrale
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
JP2014199107A (ja) * 2013-03-29 2014-10-23 住友重機械工業株式会社 ショベル

Also Published As

Publication number Publication date
IT1236282B (it) 1993-02-02
IT8940175A1 (it) 1991-05-20
ES2057518T3 (es) 1994-10-16
DE69009691D1 (de) 1994-07-14
DE69009691T2 (de) 1994-10-20
IT8940175A0 (it) 1989-11-20
ATE106850T1 (de) 1994-06-15
EP0429413B1 (fr) 1994-06-08

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