CN203889954U - Depinning device for standard joint of tower crane - Google Patents
Depinning device for standard joint of tower crane Download PDFInfo
- Publication number
- CN203889954U CN203889954U CN201420220360.8U CN201420220360U CN203889954U CN 203889954 U CN203889954 U CN 203889954U CN 201420220360 U CN201420220360 U CN 201420220360U CN 203889954 U CN203889954 U CN 203889954U
- Authority
- CN
- China
- Prior art keywords
- tower crane
- oil pump
- depinning
- jacking oil
- hydraulic ram
- 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 - Fee Related
Links
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model relates to a depinning device for a standard joint of a tower crane. The depinning device comprises a rear baffle, wherein side baffles are connected to two ends of the rear baffle in parallel; a hydraulic oil cylinder is arranged on the rear baffle, is positioned between the two side baffles and is connected to a jacking oil pump of the tower crane; and power is supplied by the jacking oil pump. The depinning device has the advantages that the device is compact in structure and convenient to use and install; the power is supplied by the jacking oil pump; the operation is smooth and steady; the standard joint is not damaged; and meanwhile, the work efficiency is improved.
Description
Technical field
The utility model relates to one and moves back latch structure, and particularly a kind of column crane mast section moves back pin assembly.
Background technology
Along with the development of tower crane, the standard knot connection mode of big-and-middle-sized tower crane adopts pin to connect.Removing tower crane, the general form of manually knocking with sledgehammer that adopts of standard knot connecting pin is removed.But after work operation after a while, connecting pin tends to rust extremely or kills in standard knot pin-and-hole at tower crane.Like this, very time-consuming, even there will be and cannot remove, only have the phenomenon that adopts acetylene to cut off.In the time adopting acetylene to cut off, as misoperation, easily injury criterion joint structure.
Summary of the invention
The purpose of this utility model is in order to overcome above deficiency, provides a kind of simple in structure, easy to operate, and work efficiency is high, and the column crane mast section of injury criterion joint does not move back pin assembly.
The purpose of this utility model is achieved through the following technical solutions: a kind of column crane mast section moves back pin assembly, comprise back shield, at the parallel side shield that is connected with in the two ends of back shield, on back shield, be provided with hydraulic ram, hydraulic ram is between two side shields, hydraulic ram is connected on the jacking oil pump of tower crane, provides power by jacking oil pump.
The utility model compared with prior art has the following advantages:
Have compact conformation, use and easy for installation, provide power by jacking oil pump, operation is steadily smooth, and standard knot zero damage, has improved work efficiency simultaneously.。
brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Number in the figure: 1-back shield, 2-side shield, 3-hydraulic ram.
detailed description of the invention:
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.
As Fig. 1 shows a kind of column crane mast section of the utility model and moves back the embodiment of pin assembly, comprise back shield 1, at the parallel side shield 2 that is connected with in the two ends of back shield 1, on back shield 1, be provided with hydraulic ram 3, hydraulic ram 3 is between two side shields 2, hydraulic ram 3 is connected on the jacking oil pump of tower crane, provides power by jacking oil pump.
While removing connecting pin, side shield 2 is stuck on main chord of standard section with pin, hydraulic ram 3 withstands on standard knot connecting pin simultaneously, hydraulic ram 3 is connected on tower crane lifting oil pump, start jacking oil pump, hydraulic ram 3 is worked, promote standard knot connecting pin and progressively exit main chord of standard section, until remove.
The utlity model has compact conformation, use and easy for installation, provide power by jacking oil pump, operation is steadily smooth, and standard knot zero damage, has improved work efficiency simultaneously.
Claims (2)
1. a column crane mast section moves back pin assembly, it is characterized in that: comprise back shield (1), at the parallel side shield (2) that is connected with in the two ends of described back shield (1), on described back shield (1), be provided with hydraulic ram (3), described hydraulic ram (3) is positioned between two side shields (2).
2. column crane mast section moves back pin assembly according to claim 1, it is characterized in that: described hydraulic ram (3) is connected on the jacking oil pump of tower crane, provides power by jacking oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220360.8U CN203889954U (en) | 2014-05-04 | 2014-05-04 | Depinning device for standard joint of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220360.8U CN203889954U (en) | 2014-05-04 | 2014-05-04 | Depinning device for standard joint of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203889954U true CN203889954U (en) | 2014-10-22 |
Family
ID=51716382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420220360.8U Expired - Fee Related CN203889954U (en) | 2014-05-04 | 2014-05-04 | Depinning device for standard joint of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203889954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480861A (en) * | 2016-01-28 | 2016-04-13 | 巨力索具股份有限公司 | Turnover lifting tool |
| CN112605638A (en) * | 2020-12-31 | 2021-04-06 | 广东庞源工程机械有限公司 | Dismantling structure system for hinge pin of tower crane |
-
2014
- 2014-05-04 CN CN201420220360.8U patent/CN203889954U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480861A (en) * | 2016-01-28 | 2016-04-13 | 巨力索具股份有限公司 | Turnover lifting tool |
| CN112605638A (en) * | 2020-12-31 | 2021-04-06 | 广东庞源工程机械有限公司 | Dismantling structure system for hinge pin of tower crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203889954U (en) | Depinning device for standard joint of tower crane | |
| CN205170283U (en) | Fixed hydraulic lift | |
| CN203654287U (en) | Pile casing pulling device | |
| CN203359828U (en) | Detachable and portable lifting tool | |
| CN205075072U (en) | A clamping part mechanism for manipulator | |
| CN204321981U (en) | Guide vanes of water turbine arm extracting tool | |
| CN203579562U (en) | Tension spring dismounting device of excavator | |
| CN203792265U (en) | Dismounting device of turbine coupling bolt | |
| CN204326677U (en) | Novel power transmission power line steel tuble pole | |
| CN204258148U (en) | A kind of built on stilts earth connection lifter | |
| CN202643074U (en) | Tail shaft polishing lifting tool | |
| CN203728491U (en) | Jacking device for heavy type parts for machining automobiles | |
| CN204984373U (en) | Portable horse head turning device | |
| CN206254095U (en) | General assembly line pallet jacking apparatus | |
| CN203639049U (en) | Concrete T beam hydraulic demoulding device | |
| CN203696389U (en) | Thermocouple drawing tool for internal mixer | |
| CN204456262U (en) | Loader cab canting base | |
| CN202742008U (en) | Automatically-disassembled pressing fit machine for hydraulic cylinder | |
| CN204248818U (en) | Hydraulic valve bank plug-in unit extracting tool | |
| CN204371380U (en) | Hydraulic support foot-treadle device | |
| CN203285038U (en) | Working platform for cross arms of electric transmission line steel tube tower | |
| CN204330496U (en) | Portable block compression testing machine | |
| CN202737397U (en) | Telescopic cable zipper sheath | |
| CN204277396U (en) | High speed shaft of gearbox changes instrument | |
| CN208713323U (en) | A kind of Large Hydroelectric Set movable guide vane sleeve provision for disengagement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |