SE9101544L - KRANDAEMPARE - Google Patents

KRANDAEMPARE

Info

Publication number
SE9101544L
SE9101544L SE9101544A SE9101544A SE9101544L SE 9101544 L SE9101544 L SE 9101544L SE 9101544 A SE9101544 A SE 9101544A SE 9101544 A SE9101544 A SE 9101544A SE 9101544 L SE9101544 L SE 9101544L
Authority
SE
Sweden
Prior art keywords
hydraulic
damping
load
series
jib
Prior art date
Application number
SE9101544A
Other languages
Swedish (sv)
Other versions
SE9101544D0 (en
SE508992C2 (en
Inventor
Einar Karlsson
Original Assignee
Einar Karlsson
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 Einar Karlsson filed Critical Einar Karlsson
Priority to SE9101544A priority Critical patent/SE508992C2/en
Publication of SE9101544D0 publication Critical patent/SE9101544D0/en
Priority to DE19924216241 priority patent/DE4216241A1/en
Priority to AT103992A priority patent/AT409370B/en
Priority to FI922329A priority patent/FI101786B/en
Publication of SE9101544L publication Critical patent/SE9101544L/en
Publication of SE508992C2 publication Critical patent/SE508992C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • B66C13/066—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads for minimising vibration of a boom

Abstract

The damping system is for the swinging movement of a hydraulic crane with jib slewed on a vertical axis by a double-acting system in a hydraulic circuit (58,60). The damping unit (66) contains a throttle (64) in series with a hydraulic ram (68), whose piston (70) moves freely to and fro between two end positions. This is mounted in a bypass pipe (62) across the slewing mechanism (48). There can be a second damping system in the hydraulic derricking circuit, connected to the side subjected to the pressure from the load, and comprising a hyraulic accumulator connected in series with an adjustable throttle. USE/ADVANTAGE - Damping system for crane matches damping effect to magnitude of load and jib swinging movement.
SE9101544A 1991-05-22 1991-05-22 Device for damping oscillations in a hydraulic load crane SE508992C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9101544A SE508992C2 (en) 1991-05-22 1991-05-22 Device for damping oscillations in a hydraulic load crane
DE19924216241 DE4216241A1 (en) 1991-05-22 1992-05-16 Hydraulic-crane damping system - has by=pass pipe across slewing mechanism containing throttle and RAM piston in series
AT103992A AT409370B (en) 1991-05-22 1992-05-20 ARRANGEMENT FOR DAMPING VIBRATIONS IN A CRANE
FI922329A FI101786B (en) 1991-05-22 1992-05-21 Crane damping arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9101544A SE508992C2 (en) 1991-05-22 1991-05-22 Device for damping oscillations in a hydraulic load crane

Publications (3)

Publication Number Publication Date
SE9101544D0 SE9101544D0 (en) 1991-05-22
SE9101544L true SE9101544L (en) 1992-11-23
SE508992C2 SE508992C2 (en) 1998-11-23

Family

ID=20382803

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9101544A SE508992C2 (en) 1991-05-22 1991-05-22 Device for damping oscillations in a hydraulic load crane

Country Status (4)

Country Link
AT (1) AT409370B (en)
DE (1) DE4216241A1 (en)
FI (1) FI101786B (en)
SE (1) SE508992C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505698C2 (en) * 1994-04-22 1997-09-29 Hiab Ab Device for suppressing undesirable oscillation movements in a wreath
SE535364C2 (en) * 2010-11-19 2012-07-10 Cranab Ab Swing damping and load crane equipped with such
EP3309326A1 (en) * 2016-10-14 2018-04-18 Putzmeister Engineering GmbH Method and device for controlling the movement of a concrete distribution mast
EP4105161A1 (en) * 2021-06-14 2022-12-21 EPSILON Kran GmbH. Hydraulic system for a lifting device
CN115557390B (en) * 2022-09-15 2024-04-16 中联重科股份有限公司 Boom lifting control system, tower crane and hydraulic control loop of damping cylinder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416538B (en) * 1979-04-02 1981-01-19 Hiab Foco Ab DEVICE FOR HYDRAULIC CRANES
DE3126206A1 (en) * 1981-07-03 1983-01-20 Fried. Krupp Gmbh, 4300 Essen Device for damping crane load oscillations
DK151102C (en) * 1984-09-06 1988-03-21 Fridtjof Berg Kroell HYDRAULIC CROWD DRIVE
JPH0639317B2 (en) * 1989-09-09 1994-05-25 株式会社神戸製鋼所 Displacement suppression mechanism for mobile cranes

Also Published As

Publication number Publication date
FI922329A (en) 1992-11-23
ATA103992A (en) 2001-12-15
FI101786B1 (en) 1998-08-31
SE9101544D0 (en) 1991-05-22
DE4216241A1 (en) 1992-11-26
AT409370B (en) 2002-07-25
SE508992C2 (en) 1998-11-23
FI922329A0 (en) 1992-05-21
FI101786B (en) 1998-08-31

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Legal Events

Date Code Title Description
NUG Patent has lapsed