CN102992207A - Telescopic boom structure of crane - Google Patents
Telescopic boom structure of crane Download PDFInfo
- Publication number
- CN102992207A CN102992207A CN 201210478498 CN201210478498A CN102992207A CN 102992207 A CN102992207 A CN 102992207A CN 201210478498 CN201210478498 CN 201210478498 CN 201210478498 A CN201210478498 A CN 201210478498A CN 102992207 A CN102992207 A CN 102992207A
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- Prior art keywords
- telescopic
- boom
- oil cylinder
- crane
- telescopic oil
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Abstract
The invention relates to a telescopic boom structure of a crane. A telescopic boom is arranged in an internal space of a base boom, telescopic oil cylinders are fixedly and symmetrically arranged at the bottoms of the two external sides of the base boom, and a piston rod of each telescopic oil cylinder is hinged together with one end of the telescopic boom. The telescopic boom structure of the crane has the advantages of facilitating the installation and maintenance of the telescopic oil cylinders, being capable of timely finding and removing faults of the telescopic oil cylinders, and overcoming unbalance loading caused by a unilateral telescopic oil cylinder and other defects and faults caused by the unbalance loading.
Description
Technical field
The present invention relates to hoisting crane, be specifically related to the telescopic arm structure of hoisting crane, belong to the hoisting crane technical field.
Background technology
As everyone knows, existing telescopic crane boom all is by basic arm, movable arm, and telescopic oil cylinder forms, wherein, telescopic boom is arranged in the internal cavities of basic arm, inner space at basic arm is provided with telescopic oil cylinder, relative motion between this telescopic oil cylinder control basic arm and the telescopic boom, the telescopic boom of this structure, because telescopic oil cylinder is arranged on the inner space of basic arm and telescopic boom, exist the defective cumbersome with maintenance is installed, especially can't find in time the existing fault of telescopic oil cylinder and fault is made timely maintenance, in addition, this structure also must have enough inner spaces, otherwise can't do corresponding installation.For the existing defects of existing telescopic boom, China Patent No. is: 200520076469.X; Patent name is: the patent of " telescopic crane boom ", announced a kind of scheme that solves the existing defective of prior art, the principal character of this kind scheme is: the inner space that telescopic boom is arranged on basic arm, simultaneously, telescopic oil cylinder is installed in the space outerpace of basic arm one side, although the telescopic boom of this structure has solved telescopic oil cylinder and has installed and the trouble of overhauling, but, because the stroke of telescopic boom is long, the phenomenon of unbalance loading occurs in telescopic oil cylinder easily, and not only tolerance causes load to increase, the defective that energy consumption is higher, simultaneously, also cause easily the blocked portion phenomenon between basic arm and the telescopic boom to occur, arrange and cause the defective that to work.
Summary of the invention
The object of the invention is to: for the existing defects of existing telescopic crane boom, the invention provides a kind of novel crane telescopic arm mechanism, overcome the existing existing defects of telescopic crane boom.
The present invention realizes that the technical scheme that above-mentioned purpose adopts is: described a kind of crane telescopic arm configuration, comprise basic arm, movable arm, telescopic oil cylinder, telescopic boom is arranged on the inner space of basic arm, two side bottoms in the outside of basic arm, symmetrical install and fix a telescopic oil cylinder, an end of the piston rod of each telescopic oil cylinder and telescopic boom is hinged.
Beneficial effect: the present invention is because after adopting said method, not only make things convenient for the installation and maintenance of telescopic oil cylinder, find in time and get rid of the existing fault of telescopic oil cylinder, simultaneously, can also overcome unbalance loading and other defective that causes thus and the advantage of fault that the telescopic oil cylinder of monolateral installation causes.
Description of drawings
Accompanying drawing 1 is structural principle front view of the present invention;
Shown in Fig. 1: 1, basic arm; 2, telescopic boom; 3, telescopic oil cylinder.
The specific embodiment
A kind of crane telescopic arm configuration of the present invention, comprise basic arm 1, telescopic boom 2, telescopic oil cylinder 3, telescopic boom 2 is arranged on the inner space of basic arm 1, bottom in the both sides of the outside of basic arm 1, symmetrical install and fix a telescopic oil cylinder 3, an end of the piston rod of each telescopic oil cylinder 3 and telescopic boom 2 is hinged.
Claims (1)
1. crane telescopic arm configuration, comprise basic arm (1), telescopic boom (2), telescopic oil cylinder (3), it is characterized in that: telescopic boom (2) is arranged on the inner space of basic arm (1), bottom in the both sides of the outside of basic arm (1), the symmetrical telescopic oil cylinder (3) that installs and fixes, an end of the piston rod of each telescopic oil cylinder (3) and telescopic boom (2) is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210478498 CN102992207A (en) | 2012-11-23 | 2012-11-23 | Telescopic boom structure of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210478498 CN102992207A (en) | 2012-11-23 | 2012-11-23 | Telescopic boom structure of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102992207A true CN102992207A (en) | 2013-03-27 |
Family
ID=47921420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210478498 Pending CN102992207A (en) | 2012-11-23 | 2012-11-23 | Telescopic boom structure of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102992207A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185652A (en) * | 2016-08-31 | 2016-12-07 | 北汽福田汽车股份有限公司 | A kind of multi-stage expansion mechanism and engineering machinery |
| CN106219421A (en) * | 2016-08-31 | 2016-12-14 | 北汽福田汽车股份有限公司 | A kind of multi-stage expansion mechanism and engineering machinery |
| CN113682980A (en) * | 2021-09-06 | 2021-11-23 | 徐州徐工随车起重机有限公司 | Six-section telescopic arm device for folding arm automobile crane |
-
2012
- 2012-11-23 CN CN 201210478498 patent/CN102992207A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185652A (en) * | 2016-08-31 | 2016-12-07 | 北汽福田汽车股份有限公司 | A kind of multi-stage expansion mechanism and engineering machinery |
| CN106219421A (en) * | 2016-08-31 | 2016-12-14 | 北汽福田汽车股份有限公司 | A kind of multi-stage expansion mechanism and engineering machinery |
| CN106219421B (en) * | 2016-08-31 | 2018-11-20 | 北汽福田汽车股份有限公司 | A kind of multi-stage expansion mechanism and engineering machinery |
| CN113682980A (en) * | 2021-09-06 | 2021-11-23 | 徐州徐工随车起重机有限公司 | Six-section telescopic arm device for folding arm automobile crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |