SE9101544L - KRANDAEMPARE - Google Patents
KRANDAEMPAREInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
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.
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 FI101786B1 (en) | 1991-05-22 | 1992-05-21 | Crane damping system |
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) | FI101786B1 (en) |
SE (1) | SE508992C2 (en) |
Families Citing this family (5)
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)
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 |
-
1991
- 1991-05-22 SE SE9101544A patent/SE508992C2/en not_active IP Right Cessation
-
1992
- 1992-05-16 DE DE19924216241 patent/DE4216241A1/en not_active Withdrawn
- 1992-05-20 AT AT103992A patent/AT409370B/en not_active IP Right Cessation
- 1992-05-21 FI FI922329A patent/FI101786B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATA103992A (en) | 2001-12-15 |
SE508992C2 (en) | 1998-11-23 |
FI101786B (en) | 1998-08-31 |
FI101786B1 (en) | 1998-08-31 |
SE9101544D0 (en) | 1991-05-22 |
FI922329A (en) | 1992-11-23 |
AT409370B (en) | 2002-07-25 |
FI922329A0 (en) | 1992-05-21 |
DE4216241A1 (en) | 1992-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |