CN201940797U - Hydraulic assembling and disassembling device for suspension arm connecting pin of crawler crane - Google Patents
Hydraulic assembling and disassembling device for suspension arm connecting pin of crawler crane Download PDFInfo
- Publication number
- CN201940797U CN201940797U CN2010206901615U CN201020690161U CN201940797U CN 201940797 U CN201940797 U CN 201940797U CN 2010206901615 U CN2010206901615 U CN 2010206901615U CN 201020690161 U CN201020690161 U CN 201020690161U CN 201940797 U CN201940797 U CN 201940797U
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- CN
- China
- Prior art keywords
- connecting pin
- suspension arm
- hydraulic
- pin
- crawler crane
- 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
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Abstract
The utility model discloses a hydraulic assembling and disassembling device for a suspension arm connecting pin of a crawler crane, which comprises a hydraulic press and a cylinder ejecting head. A piston rod of the hydraulic press is fixedly connected with the cylinder ejecting head, and the cylinder ejecting head is groove-shaped and connected with a pin required to be detached by the aid of the connecting pin. The suspension arm pin required to be detached from a suspension arm is detached slowly in a pressed mode by the hydraulic cylinder ejecting head, the fit clearance change of the suspension arm pin and a suspension arm pin hole is effectively decreased, and suspension arm stability after being detached for multiple times and for a long time is ensured.
Description
Technical field
The utility model relates to the pin provision for disengagement, relates in particular to a kind of crawler crane arm connecting pin hydraulic dismounting device.
Background technology
Large-scale crawler crane carries out disassemble and assemble work through regular meeting to the arm of crane in when construction, when especially carrying out wind-driven generator lifting or maintenance transition in the relatively poor wind energy turbine set of road conditions environment, often takes place especially.The frequent dismounting of connecting pin between the crawler crane arm joint, the fit clearance of connecting pin and arm joint pin-and-hole changes.
The road conditions environment of wind-driven generator infield is more and more undesirable at present, the installation of a general 49.5MW wind energy turbine set 1.5MW blower fan is 33, and the condition of road surface of some wind field is at full stretch, and width has only about 5 meters, a wind field like this is installed, and needs dismounting more than 30 times.General traditional dismounting connecting pin, what the instrument that uses was the most frequently used is large-scale hammer, use hammer that connecting pin is beaten dismounting, so frequent large impact power ground dismounting arm, fit clearance to connecting pin on the arm and arm joint pin-and-hole produces a very large impact, and if things go on like this connective stability to arm has certain negative effect.
The utility model content
The utility model is intended to overcome the deficiency that above prior art exists, and the band arm connecting pin hydraulic dismounting device that still can guarantee crawler belt arm stability after a kind of long-time repeatedly dismounting is provided.
The utility model technical solution problem adopts following technical scheme:
A kind of crawler crane arm connecting pin hydraulic dismounting device comprises hydraulic press and oil cylinder jacking head, and the piston rod of described hydraulic press and oil cylinder jacking are fixedlyed connected; Oil cylinder jacking head is flute profile, and oil cylinder jacking head is connected with the arm joint connecting pin that will dismantle by connecting pin.
The beneficial effects of the utility model are as follows:
The arm joint connecting pin that the utility model hydraulic jack jacking head will be dismantled the arm joint carries out slow squash type dismounting, the fit clearance that effectively weakens arm joint connecting pin and arm joint pin-and-hole changes, and guarantees the arm stability after its long-time repeatedly several dismounting.
Description of drawings
Fig. 1 is the structural representation of crawler crane arm connecting pin hydraulic dismounting device of the present utility model.
The specific embodiment
Embodiment 1
Referring to Fig. 1, a kind of crawler crane arm connecting pin hydraulic dismounting device comprises hydraulic press 7 and oil cylinder jacking 5, and the piston rod 6 of described hydraulic press 7 and oil cylinder jacking 5 fixedlyed connected; Oil cylinder jacking 5 is groove
Shape, oil cylinder jacking 5 saves connecting pin 2 with the arm that will dismantle and is connected by connecting pin 4; 1 and 3 is two arms joints that will be connected or dismantle among the figure, and described hydraulic press 7 is arranged on base counterweight and the hoistable platform assembly 9.
One end of the described arm joint connecting pin that will dismantle 2 contiguous oil cylinder jackings 5 is provided with pin hole.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (1)
1. crawler crane arm connecting pin hydraulic dismounting device, it is characterized in that: comprise hydraulic press (7) and oil cylinder jacking head (5), the piston rod (6) of described hydraulic press (7) is fixedlyed connected with oil cylinder jacking head (5); Oil cylinder jacking head (5) is flute profile, and oil cylinder jacking head (5) is connected with the arm joint connecting pin (2) that will dismantle by connecting pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206901615U CN201940797U (en) | 2010-12-30 | 2010-12-30 | Hydraulic assembling and disassembling device for suspension arm connecting pin of crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206901615U CN201940797U (en) | 2010-12-30 | 2010-12-30 | Hydraulic assembling and disassembling device for suspension arm connecting pin of crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940797U true CN201940797U (en) | 2011-08-24 |
Family
ID=44468148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206901615U Expired - Fee Related CN201940797U (en) | 2010-12-30 | 2010-12-30 | Hydraulic assembling and disassembling device for suspension arm connecting pin of crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414929A (en) * | 2015-09-02 | 2016-03-23 | 煤科集团沈阳研究院有限公司 | Ejection device for pin rolls of hydraulic support and pin ejecting method |
-
2010
- 2010-12-30 CN CN2010206901615U patent/CN201940797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414929A (en) * | 2015-09-02 | 2016-03-23 | 煤科集团沈阳研究院有限公司 | Ejection device for pin rolls of hydraulic support and pin ejecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20131230 |