EP0755895A3 - A rotation device for lifting apparatus - Google Patents

A rotation device for lifting apparatus Download PDF

Info

Publication number
EP0755895A3
EP0755895A3 EP96830298A EP96830298A EP0755895A3 EP 0755895 A3 EP0755895 A3 EP 0755895A3 EP 96830298 A EP96830298 A EP 96830298A EP 96830298 A EP96830298 A EP 96830298A EP 0755895 A3 EP0755895 A3 EP 0755895A3
Authority
EP
European Patent Office
Prior art keywords
rotation device
lifting apparatus
crown
hydraulic cylinder
fixed base
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Withdrawn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
EP96830298A
Other languages
German (de)
French (fr)
Other versions
EP0755895A2 (en
Inventor
Gianni Ferrari
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.)
Flli Ferrari SpA
Original Assignee
Flli Ferrari SpA
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 Flli Ferrari SpA filed Critical Flli Ferrari SpA
Publication of EP0755895A2 publication Critical patent/EP0755895A2/en
Publication of EP0755895A3 publication Critical patent/EP0755895A3/en
Withdrawn legal-status Critical Current

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The rotation device for lifting apparatus, especially for cranes mountable on vehicles, comprises a hydraulic cylinder (2) which exhibits a stem (3), solidly connected to a fixed base (4), on which a rotating column (1) of the lifting device is mounted. The body (5) of the hydraulic cylinder (2) is constrained to translate with respect to the fixed base (4) and is externally provided with helical guides (6) in which organs (17) predisposed on a crown (7) engage. The crown (7) is coupled on the external surface of the body (5) and solidly constrained on the column (1).
EP96830298A 1995-07-26 1996-05-23 A rotation device for lifting apparatus Withdrawn EP0755895A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95MO000112A IT1279840B1 (en) 1995-07-26 1995-07-26 ROTATION DEVICE FOR LIFTING EQUIPMENT
ITMO950112 1995-07-26

Publications (2)

Publication Number Publication Date
EP0755895A2 EP0755895A2 (en) 1997-01-29
EP0755895A3 true EP0755895A3 (en) 1999-04-21

Family

ID=11385916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96830298A Withdrawn EP0755895A3 (en) 1995-07-26 1996-05-23 A rotation device for lifting apparatus

Country Status (2)

Country Link
EP (1) EP0755895A3 (en)
IT (1) IT1279840B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101879399B (en) * 2010-07-30 2013-11-06 广东火电工程总公司 Structure and method for jacking absorption tower from middle segment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8110302U1 (en) * 1981-04-04 1982-06-16 Ing. Zasche Fördertechnik GmbH, 8860 Nördlingen FRICTION WHEEL SWIVEL
SU1765564A1 (en) * 1990-06-04 1992-09-30 Специальное Конструкторско-Технологическое Бюро "Галс" Hoist swivel support
DE4129807A1 (en) * 1991-09-07 1993-03-11 Vetter Foerdertechnik Gmbh Rotary drive for boom of tower crane - consists of group of rollers with at least one roller driven by motor
DE9311316U1 (en) * 1993-06-19 1993-10-14 IMO - Industrie Momentenlager Stoll & Russ GmbH, 91350 Gremsdorf Arrangement for the rotary drive of a machine and system part and worm gear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8110302U1 (en) * 1981-04-04 1982-06-16 Ing. Zasche Fördertechnik GmbH, 8860 Nördlingen FRICTION WHEEL SWIVEL
SU1765564A1 (en) * 1990-06-04 1992-09-30 Специальное Конструкторско-Технологическое Бюро "Галс" Hoist swivel support
DE4129807A1 (en) * 1991-09-07 1993-03-11 Vetter Foerdertechnik Gmbh Rotary drive for boom of tower crane - consists of group of rollers with at least one roller driven by motor
DE9311316U1 (en) * 1993-06-19 1993-10-14 IMO - Industrie Momentenlager Stoll & Russ GmbH, 91350 Gremsdorf Arrangement for the rotary drive of a machine and system part and worm gear

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET PATENTS ABSTRACTS Section PQ Week 9341, 1 December 1993 Derwent World Patents Index; Class Q38, AN 93-326599, XP002093970 *

Also Published As

Publication number Publication date
IT1279840B1 (en) 1997-12-18
EP0755895A2 (en) 1997-01-29
ITMO950112A1 (en) 1997-01-26
ITMO950112A0 (en) 1995-07-26

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