GB1021969A - System for damping the oscillations of a grab - Google Patents
System for damping the oscillations of a grabInfo
- Publication number
- GB1021969A GB1021969A GB4970664A GB4970664A GB1021969A GB 1021969 A GB1021969 A GB 1021969A GB 4970664 A GB4970664 A GB 4970664A GB 4970664 A GB4970664 A GB 4970664A GB 1021969 A GB1021969 A GB 1021969A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grab
- shovel
- unit
- excavator
- boom
- 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.)
- Expired
Links
- 230000010355 oscillation Effects 0.000 title abstract 2
- 238000013016 damping Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/20—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs mounted on, or guided by, jibs
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
- E02F3/4135—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device with grabs mounted directly on a boom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/963—Arrangements on backhoes for alternate use of different tools
-
- 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
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
- E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Earth Drilling (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
1,021,969. Grab excavators. SOC. NOUVELLE DES ATELIERS DE VENISSIEUX Dec. 7, 1964 [Dec. 5, 1963], No. 49706/64. Heading E1F. In a grab excavator, obtained by replacing the shovel of a shovel excavator with a grab, oscillations of the grab about the pivotal connection between it and the vertically swingable boom of the excavator are damped out by a boom-mounted piston cylinder unit associated with a throttling device for limiting between the end chambers of the unit passage of hydraulic fluid in response to movements of the unit's piston which is mechanically coupled to the grab. When arranged for shovel excavating operations the throttling device is disassociated from the unit to the ends of which pressurised hydraulic fluid is then arranged to be supplied as required to allow the unit which is mechanically connected to the shovel to pivot the shovel relative to the boom structure.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR956188A FR1385609A (en) | 1963-12-05 | 1963-12-05 | Device for damping the oscillations of a clamshell mounted on the arm of a hydraulic excavator in place of the excavator bucket |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1021969A true GB1021969A (en) | 1966-03-09 |
Family
ID=8818200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4970664A Expired GB1021969A (en) | 1963-12-05 | 1964-12-07 | System for damping the oscillations of a grab |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE656756A (en) |
CH (1) | CH424652A (en) |
ES (1) | ES306751A1 (en) |
FR (1) | FR1385609A (en) |
GB (1) | GB1021969A (en) |
LU (1) | LU47528A1 (en) |
NL (1) | NL6414168A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVB20110002A1 (en) * | 2011-02-25 | 2011-05-27 | Lorenzo Ottoni | AUXILIARY SOCKET DEVICE FOR EXCAVATORS OF A JOINTED ARMS |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3245288A1 (en) * | 1982-12-03 | 1984-06-14 | O & K Orenstein & Koppel Ag, 1000 Berlin | METHOD FOR SAVING ENERGY WHEN SETTING AN EQUIPMENT CYLINDER ON A HYDRAULIC EXCAVATOR BY A HYDRAULIC CIRCUIT |
US5116188A (en) * | 1987-09-16 | 1992-05-26 | Kabushiki Kaisha Kobe Seiko Sho | Vibration suppressing device for wheeled construction equipment |
EP0381788B1 (en) * | 1989-02-06 | 1994-10-19 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Vibration suppressing device for a wheeled construction equipment |
-
1963
- 1963-12-05 FR FR956188A patent/FR1385609A/en not_active Expired
-
1964
- 1964-12-04 NL NL6414168A patent/NL6414168A/xx unknown
- 1964-12-04 ES ES0306751A patent/ES306751A1/en not_active Expired
- 1964-12-04 CH CH1568164A patent/CH424652A/en unknown
- 1964-12-05 LU LU47528A patent/LU47528A1/xx unknown
- 1964-12-07 GB GB4970664A patent/GB1021969A/en not_active Expired
- 1964-12-07 BE BE656756D patent/BE656756A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITVB20110002A1 (en) * | 2011-02-25 | 2011-05-27 | Lorenzo Ottoni | AUXILIARY SOCKET DEVICE FOR EXCAVATORS OF A JOINTED ARMS |
Also Published As
Publication number | Publication date |
---|---|
BE656756A (en) | 1965-04-01 |
NL6414168A (en) | 1965-06-07 |
FR1385609A (en) | 1965-01-15 |
LU47528A1 (en) | 1965-02-05 |
CH424652A (en) | 1966-11-15 |
ES306751A1 (en) | 1965-04-16 |
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