WO1986001494A1 - Systeme hydraulique de rotation pour grue pivotante - Google Patents

Systeme hydraulique de rotation pour grue pivotante Download PDF

Info

Publication number
WO1986001494A1
WO1986001494A1 PCT/DK1985/000086 DK8500086W WO8601494A1 WO 1986001494 A1 WO1986001494 A1 WO 1986001494A1 DK 8500086 W DK8500086 W DK 8500086W WO 8601494 A1 WO8601494 A1 WO 8601494A1
Authority
WO
WIPO (PCT)
Prior art keywords
crane
hydraulic
blend
valve
swing
Prior art date
Application number
PCT/DK1985/000086
Other languages
English (en)
Inventor
Fridtjof Berg KRO^/LL
Original Assignee
Kroell Fridtjof Berg
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 Kroell Fridtjof Berg filed Critical Kroell Fridtjof Berg
Priority to NL8520291A priority Critical patent/NL8520291A/nl
Publication of WO1986001494A1 publication Critical patent/WO1986001494A1/fr
Priority to FI861871A priority patent/FI861871A/fi

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
    • B66C23/86—Slewing gear hydraulically actuated

Definitions

  • the invention concerns a hydraulic rotate system, in which a shunt is laid across the supply gate of the hydraulic motor.
  • the invented system Because of its characterization, which consists in in ⁇ creasing ability of braking on on increasing speed, the invented system also prevents the situations, where the crane starts to rotate uncontrolled, when about the half of the working area of the crane is laying under cover from the wind.
  • Fig. 1 shows a schematic outline of the invention in unactivated situation.
  • Fig. 1 shows a schematic outline, as per the invention, seen in unactivated circuit loose situation, where the hydraulic motor A can circulate oil through a two-ways valve C and a blend B, when the crane is to be able to place itself in the direction of the wind.
  • a steering valve D is activated to start the rotate movement, according to, if all the oil are wan- " ted to the motor A on powerful start or more mild start with pressure- and flow reduction through blend B, the valve C respectivelycan be activated or stay in the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Un système hydraulique de rotation pour une grue pivotante comprend essentiellement un moteur hydraulique (A), un mélangeur (B), une soupape à deux voies (C) et une soupape de direction (D). Le mélangeur (B) libère de l'huile lorsque le circuit d'alimentation de la grue est interrompu et permet à la flèche de la grue de se placer elle-même automatiquement dans la direction du vent. En fonctionnement normal, l'effet de régulation du mélangeur (B) peut être éliminé, si on le désire, par l'intermédiaire de la soupape (C) qui est commandée à partir de l'organe de manoeuvre dans le cas d'une immobilisation par arrêt ou démarrage puissant du mouvemnt rotatif.
PCT/DK1985/000086 1984-09-06 1985-09-06 Systeme hydraulique de rotation pour grue pivotante WO1986001494A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL8520291A NL8520291A (nl) 1984-09-06 1985-09-06 Hydraulische rotatiesysteem voor een zwenkkraan.
FI861871A FI861871A (fi) 1984-09-06 1986-05-05 Hydrauliskt rotationssystem foer svaengkran.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK4249/84 1984-09-06
DK424984A DK151102C (da) 1984-09-06 1984-09-06 Hydraulisk kroejedrev

Publications (1)

Publication Number Publication Date
WO1986001494A1 true WO1986001494A1 (fr) 1986-03-13

Family

ID=8131737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1985/000086 WO1986001494A1 (fr) 1984-09-06 1985-09-06 Systeme hydraulique de rotation pour grue pivotante

Country Status (12)

Country Link
EP (1) EP0192750B1 (fr)
JP (1) JPS62500376A (fr)
AT (1) ATA902885A (fr)
CH (1) CH669183A5 (fr)
DE (1) DE3590423T1 (fr)
DK (1) DK151102C (fr)
FI (1) FI861871A (fr)
GB (1) GB2177675B (fr)
NL (1) NL8520291A (fr)
NO (1) NO861761L (fr)
SE (1) SE465266B (fr)
WO (1) WO1986001494A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409370B (de) * 1991-05-22 2002-07-25 Hultdins System Ab Anordnung zur dämpfung von schwingungen in einem kran
CN109469666A (zh) * 2018-10-17 2019-03-15 江苏谷登工程机械装备有限公司 一种水平定向钻机液压控制系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017117505B4 (de) * 2017-08-02 2020-10-22 Manitowoc Crane Group France Sas Kran mit geschlossenem Hydraulikkreislauf

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT301802B (de) * 1970-04-21 1972-09-25 Hans Kuenz Fa Fahrwerk für Krananlagen
US4013174A (en) * 1974-11-11 1977-03-22 The Manitowoc Company, Inc. Swing drive with automatic shut-down control

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT301802B (de) * 1970-04-21 1972-09-25 Hans Kuenz Fa Fahrwerk für Krananlagen
US4013174A (en) * 1974-11-11 1977-03-22 The Manitowoc Company, Inc. Swing drive with automatic shut-down control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409370B (de) * 1991-05-22 2002-07-25 Hultdins System Ab Anordnung zur dämpfung von schwingungen in einem kran
CN109469666A (zh) * 2018-10-17 2019-03-15 江苏谷登工程机械装备有限公司 一种水平定向钻机液压控制系统

Also Published As

Publication number Publication date
NO861761L (no) 1986-05-02
FI861871A0 (fi) 1986-05-05
DK424984D0 (da) 1984-09-06
DE3590423T1 (de) 1986-10-09
SE8602046D0 (sv) 1986-05-05
ATA902885A (de) 1993-08-15
NL8520291A (nl) 1986-08-01
SE8602046L (sv) 1986-05-05
JPS62500376A (ja) 1987-02-19
GB2177675B (en) 1988-05-18
GB8610936D0 (en) 1986-06-11
DK151102C (da) 1988-03-21
FI861871A (fi) 1986-05-05
EP0192750A1 (fr) 1986-09-03
DK424984A (da) 1986-03-07
EP0192750B1 (fr) 1992-12-02
DK151102B (da) 1987-11-02
SE465266B (sv) 1991-08-19
CH669183A5 (fr) 1989-02-28
GB2177675A (en) 1987-01-28

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