CN101628691A - Pitch winding mechanism of crane - Google Patents
Pitch winding mechanism of crane Download PDFInfo
- Publication number
- CN101628691A CN101628691A CN200810140771A CN200810140771A CN101628691A CN 101628691 A CN101628691 A CN 101628691A CN 200810140771 A CN200810140771 A CN 200810140771A CN 200810140771 A CN200810140771 A CN 200810140771A CN 101628691 A CN101628691 A CN 101628691A
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- CN
- China
- Prior art keywords
- fixed pulley
- winding mechanism
- pitch winding
- crane
- limit switch
- 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.)
- Pending
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a pitch winding mechanism of a crane, which comprises a wire cable, a bracket, a wire press wheel, a fixed pulley, a limit device, a fixed pulley block and a girder. The pitch winding mechanism is characterized in that the wire press wheel is hinged with the fixed pulley by a pulling plate, and the wire press wheel can rotate at a fixed angle around a shaft of the fixed pulley; a stopper for preventing the rotation angle from exceeding a fixed value is arranged at an upper limit position, and a limit switch is arranged at a lower limit position; and the limit switch can be directly mounted in a position corresponding to the pulling plate. By adopting the mechanism, the reverse bending of the wire cable is reduced and the service life of the wire cable is prolonged; and because the limit switch is directly mounted in the position corresponding to the pulling plate, the limit device in the prior mechanism is saved, the structure is simplified and the performances are improved.
Description
Technical field
The present invention relates to a kind of pitch winding mechanism of crane, be specially adapted to the pitch winding mechanism of shore container crane.
Background technology
When existing shore container crane pitch winding mechanism process press rope wheel and fixed pulley, there is the bending of small distance reversing sense in steel rope, has shortened the service life of steel rope, and the inhibiting device complex structure of winding mechanism, poor performance.
Summary of the invention
Task of the present invention is to propose a kind of steel rope that reduces to use the oppositely pitch winding mechanism of crane of bending of part, task of the present invention is finished like this: it comprises steel rope, support, press rope wheel, fixed pulley, inhibiting device, fixed pulley group and crossbeam composition, it is characterized in that: press rope wheel employing arm-tie and fixed pulley are hinged, and press rope wheel can rotate with fixed angle around fixed pulley axis.Be provided with at upper limit position and prevent that the anglec of rotation from surpassing the block of given value, is provided with limit switch in the smallest limit position.Limit switch can directly be contained in and the corresponding position of arm-tie.The present invention has following effect: reduced steel rope and used reverse bending partly, prolonged the service life of steel rope, inhibiting device is simple, and is safe and reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation that press rope wheel and fixed pulley are twined in existing pitching
Fig. 3 is the structural representation of press rope wheel of the present invention and fixed pulley
The drawing explanation
1, reel 2, steel rope 3, support 4, press rope wheel 5, fixed pulley (a) (b) 6, inhibiting device 7, arm-tie 8, crossbeam
The specific embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing: press rope wheel 4 is hinged by arm-tie 7 and fixed pulley 5 (a); press rope wheel 4 can rotate with fixed angle around fixed pulley axis; establish block in the limes superiors position and prevent that the anglec of rotation from surpassing given value; the smallest limit position bit switch of limiting; when reel 1 lay winding wire ropes 2 pulling crossbeams 8, crossbeam 8 is up to the standard behind the position, limited by upper and lower end position; steel rope 2 no pulling force, the sagging and shutdown of small sheave and steel rope deadweight.This mechanism has reduced the reversing sense bending of steel rope, because limit switch directly is contained in and the corresponding position of arm-tie, has saved the inhibiting device of former mechanism the service life of having improved steel rope, designs simplification, and performance is improved.
Claims (3)
1, a kind of pitch winding mechanism of crane, it comprises steel rope, support, press rope wheel, fixed pulley, inhibiting device, fixed pulley group and crossbeam composition, it is characterized in that: press rope wheel employing arm-tie and fixed pulley are hinged, and press rope wheel can rotate with fixed angle around fixed pulley axis.
2, a kind of pitch winding mechanism of crane according to claim 1 is characterized in that: be provided with at upper limit position and prevent that the anglec of rotation from surpassing the block of given value, is provided with limit switch in the smallest limit position.
3, a kind of pitch winding mechanism of crane according to claim 1 is characterized in that: limit switch can directly be contained in and the corresponding position of arm-tie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810140771A CN101628691A (en) | 2008-07-18 | 2008-07-18 | Pitch winding mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810140771A CN101628691A (en) | 2008-07-18 | 2008-07-18 | Pitch winding mechanism of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101628691A true CN101628691A (en) | 2010-01-20 |
Family
ID=41574003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810140771A Pending CN101628691A (en) | 2008-07-18 | 2008-07-18 | Pitch winding mechanism of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101628691A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108290723A (en) * | 2015-11-10 | 2018-07-17 | 特雷克斯全球有限公司 | Mobilecrane and make its main boom extension with respect to the method that main boom is bent |
| CN110077971A (en) * | 2019-05-29 | 2019-08-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Luffing pulley blocks bit shift compensation system and its crane |
| US10640340B2 (en) | 2015-11-24 | 2020-05-05 | Terex Global Gmbh | Mobile crane for angling a main jib extension relative to a main jib of a mobile crane |
| US10640339B2 (en) | 2015-11-10 | 2020-05-05 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
-
2008
- 2008-07-18 CN CN200810140771A patent/CN101628691A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108290723A (en) * | 2015-11-10 | 2018-07-17 | 特雷克斯全球有限公司 | Mobilecrane and make its main boom extension with respect to the method that main boom is bent |
| CN108290723B (en) * | 2015-11-10 | 2020-04-21 | 特雷克斯全球有限公司 | Mobile crane and method for bending the extension of the main boom thereof in relation to the main boom |
| US10640339B2 (en) | 2015-11-10 | 2020-05-05 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
| US10647553B2 (en) | 2015-11-10 | 2020-05-12 | Terex Global Gmbh | Mobile crane and method for angling a main jib extension relative to a main jib of a mobile crane |
| US10640340B2 (en) | 2015-11-24 | 2020-05-05 | Terex Global Gmbh | Mobile crane for angling a main jib extension relative to a main jib of a mobile crane |
| US10781083B2 (en) | 2015-11-24 | 2020-09-22 | Terex Global Gmbh | Mobile crane and method for angling a main boom extension in relation to a main boom of a mobile crane |
| CN110077971A (en) * | 2019-05-29 | 2019-08-02 | 徐工集团工程机械股份有限公司建设机械分公司 | Luffing pulley blocks bit shift compensation system and its 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 |
Open date: 20100120 |