CN101264855A - Inclined guy cable stretching torsion-proof jack - Google Patents
Inclined guy cable stretching torsion-proof jack Download PDFInfo
- Publication number
- CN101264855A CN101264855A CNA2008100474712A CN200810047471A CN101264855A CN 101264855 A CN101264855 A CN 101264855A CN A2008100474712 A CNA2008100474712 A CN A2008100474712A CN 200810047471 A CN200810047471 A CN 200810047471A CN 101264855 A CN101264855 A CN 101264855A
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- steel strand
- jack
- plate
- torsion
- guy cable
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Abstract
The invention discloses a tension anti-torsion jack of a stayed cable, comprising a support. No less than two oil cylinder jack are evenly arranged on the support. A piston rod of the oil cylinder jack is connected with a raising plate. A first clamping device for a steel strand is arranged on the raising plate and a second clamping device for the steel strand is arranged in the support. The oil cylinder jacks moves simultaneously, and tension aim is achieved by shifted clamping the steel strand of the stayed cable using the first and the second clamping devices when the stayed cable tends, so torsion of the stayed cable is avoided effectively. An raising momentum system is broken up the whole into parts and an anti-torsion system is formed depending on the raising device, so torsion of the stayed cable is avoided in tension process; working height of the stayed cable system is reduced largely by closely combining a frame brace used in stayed cable tension with the jack, and requirement for space of the stayed cable tension is reduced largely.
Description
Technical field
The invention belongs to suspension cable and steel strand tension constructing device, be specifically related to a kind of inclined guy cable stretching jack.
Background technology
The stretching construction of suspension cable all adopts the punching jack to finish at present.For by the underrelaxation high tensile steel wire, in fill out anticorrosion grease, the suspension cable that the outsourcing high density polyethylene (HDPE) constitutes.Though this kind suspension cable is called the parallel steel wire suspension cable, but in fact finished product rope in-to-in steel wire is not parallel, but there is about about 3 ° twist angle, because the existence of this twist angle, cause suspension cable can produce a turn-back power when stretch-draw, certainly will discharge at the stretch-draw end after this twisting resistance acquires a certain degree, the jacking apparatus that this power will drive the stretch-draw jack rotates together, damage jack, safety misadventure also very easily takes place simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of anti-jack that reverses of suspension cable that when stretch-draw, can prevent, to address the above problem.
Technical scheme of the present invention is: the inclined guy cable stretching torsion-proof jack, it comprises support, is provided with on the support to be no less than two oil cylinder jacks, and the piston rod of oil cylinder jack connects raising plate, establish steel strand first holding device on the raising plate, be provided with steel strand second holding device in the support.
This jack adopts a plurality of oil cylinder jacks to move simultaneously, utilizes first holding device and second holding device, when inclined guy cable stretching, alternately the Cable Stayed Steel twisted wire is implemented clamping, reaches the purpose of stretch-draw, and actv. is avoided reversing of suspension cable.It breaks the whole up into parts the jacking dynamical system, and relies on jacking apparatus to form antitorque system, has avoided twisting in the inclined guy cable stretching process; Inclined guy cable stretching is combined closely with spike and jack device, dwindled the operating altitude of inclined guy cable stretching system greatly, the requirement in inclined guy cable stretching space is obviously reduced.
Description of drawings
Fig. 1 inclined guy cable stretching torsion-proof jack structure scheme drawing.
Fig. 2 inclined guy cable stretching torsion-proof jack is arranged scheme drawing.
The specific embodiment
As shown in Figure 1, support 15 is a framed structure, comprises annular brace leg 8, establishes stay bearing plate 21 on the annular brace leg 8.Here support 15 and stay bearing plate 21 are for becoming one-piece parts.Four oil cylinder jacks 10 are located at (shown in Figure 2) on the support 15 symmetrically, and four oil cylinder jacks 10 are connected with annular brace leg 8.The piston rod 16 of oil cylinder jack 10 connects raising plate 3.Raising plate 3 connects steel strand first holding device 17.Steel strand first holding device 17 comprises and raising plate 3 bonded assembly steel strand orienting lugs 2 that steel strand orienting lug 2 can be same part with raising plate 3, also can be that interconnective two parts constitute.Present embodiment steel strand orienting lug 2 is by two parts of bolt 18 bonded assemblys with raising plate 3.Offer hole 19 on the raising plate 3.Steel strand orienting lug 2 offers steel strand guide hole 20, is provided with steel strand intermediate plate 13 in the steel strand guide hole 20.Steel strand guide hole 20 is taper, and steel strand intermediate plate 13 also is taper.Connect positioning plate 9 on the steel strand orienting lug 2.
Establishing the second twisted wire orienting lug, 4, the second steel strand orienting lugs 4 on the stay bearing plate 21 offers to be provided with in the second steel strand guide hole, 22, the second steel strand guide holes 22 on the second steel strand intermediate plate, 14, the second steel strand orienting lugs 4 and connects second positioning plate 23.The second steel strand guide hole 22 is taper, and steel strand intermediate plate 14 also is taper.Connect to breathe out floating fixed plate 6, the second twisted wire orienting lugs 4 on the concrete stay bearing plate 21 and is connected by location locker 5 with breathing out between the floating fixed plate 6, location locker 5 passes through bolt 7 and is connected with the second twisted wire orienting lug 4 with Kazakhstan floating fixed plate 6.Establish hole slot 24, the second twisted wire orienting lugs 4 bottoms on the Kazakhstan floating fixed plate 6 and be located in the hole slot 24 of breathing out floating fixed plate 6, and fixing by location locker 5.Location locker 5 is a loop configuration.Offer handle hole 11 on the annular brace leg 8.
During inclined guy cable stretching, steel strand 12 pass positioning plate 9, steel strand intermediate plate 13 and steel strand guide hole 20; Pass second positioning plate 23, steel strand intermediate plate 14 and steel strand guide hole 22 simultaneously.On the steel strand 12 between positioning plate 9 and the steel strand intermediate plate 13, be provided with spring 1; On the steel strand 12 between positioning plate 23 and the steel strand intermediate plate 14, be provided with spring 25.
Principle of work: all sub-jacks are all controlled by a cover hydraulic efficiency pressure system, have guaranteed all sub-jack combineds action, form the arm of force between each sub-jack and the steel strand, and are stressed even, produce torsion proof moment.During the jack action, the oil cylinder 10 of all sub-jacks stretches out simultaneously, drives raising plate 3 and rises, thereby driving steel strand orienting lug 2 rises, steel strand 12 are clamped the back in company with upwards elongation of steel strand orienting lug 2 by steel strand intermediate plate 13, and at this moment, steel strand intermediate plate 14 is in open state.After the oil cylinder rising of group jack puts in place, the oil pump oil return of jack, steel strand intermediate plate 14 clamps gradually in the process of oil return, the power of steel strand 12 is all transferred on the second twisted wire orienting lug 4, jack continues oil return then, because steel strand intermediate plate 13 is in the state of not stressing, steel strand intermediate plate 13 is opened in the process of jack oil return, steel strand orienting lug 2, raising plate 3 and 13 declines synchronously of steel strand intermediate plate along with the retraction of jack cylinder, oil cylinder begins jacking after all withdrawing again, repeat said process, go round and begin again like this, drive steel strand 12 and rise gradually, finish stretch-draw work.
Claims (7)
1, a kind of inclined guy cable stretching torsion-proof jack, it comprises support, it is characterized in that being provided with on the support being no less than two oil cylinder jacks, and the piston rod of oil cylinder jack connects raising plate, establish steel strand first holding device on the raising plate, be provided with steel strand second holding device in the support.
2, inclined guy cable stretching torsion-proof jack according to claim 1, it is characterized in that steel strand first holding device comprises the steel strand orienting lug, the steel strand orienting lug offers the steel strand guide hole, is provided with the steel strand intermediate plate in the steel strand guide hole, connects positioning plate on the steel strand orienting lug.
3, as inclined guy cable stretching torsion-proof jack as described in the claim 2, it is characterized in that being provided with spring between positioning plate and the steel strand guide hole.
4, inclined guy cable stretching torsion-proof jack according to claim 1, it is characterized in that steel strand second holding device comprises stay bearing plate, establish the second twisted wire orienting lug on the stay bearing plate, the second steel strand orienting lug offers the second steel strand guide hole, be provided with the second steel strand intermediate plate in the second steel strand guide hole, connect second positioning plate on the second steel strand orienting lug.
5, as inclined guy cable stretching torsion-proof jack as described in the claim 4, it is characterized in that being provided with spring between second positioning plate and the second steel strand guide hole.
6, as inclined guy cable stretching torsion-proof jack as described in the claim 4, it is characterized in that connecting on the stay bearing plate and breathe out the floating fixed plate, the second twisted wire orienting lug is connected by locating locker with breathing out between the floating fixed plate.
7, inclined guy cable stretching torsion-proof jack according to claim 1 is characterized in that on the support evenly or is symmetrical arranged four oil cylinder jacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810047471 CN101264855B (en) | 2008-04-25 | 2008-04-25 | Inclined guy cable stretching torsion-proof jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810047471 CN101264855B (en) | 2008-04-25 | 2008-04-25 | Inclined guy cable stretching torsion-proof jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101264855A true CN101264855A (en) | 2008-09-17 |
| CN101264855B CN101264855B (en) | 2010-04-14 |
Family
ID=39987586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810047471 Expired - Fee Related CN101264855B (en) | 2008-04-25 | 2008-04-25 | Inclined guy cable stretching torsion-proof jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101264855B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502239A (en) * | 2015-12-11 | 2016-04-20 | 天津市天锻压力机有限公司 | Steel strand penetrating device for large steel structure traction equipment |
| CN106744462A (en) * | 2017-01-09 | 2017-05-31 | 苏州市能工基础工程有限责任公司 | For the jack of drawing steel stranded wire |
| CN108265887A (en) * | 2018-01-19 | 2018-07-10 | 四川升拓检测技术股份有限公司 | A kind of guider based on torque resistant |
| CN108675193A (en) * | 2018-07-04 | 2018-10-19 | 天津景天威力达液压千斤顶有限公司 | A kind of hydraulic jack of Anti-inclining |
| CN113753791A (en) * | 2021-09-18 | 2021-12-07 | 广东韶钢松山股份有限公司 | Special tool and method for replacing and sealing energy accumulator joint |
| CN114673095A (en) * | 2022-05-05 | 2022-06-28 | 中交一公局集团有限公司 | Space dysmorphism is with suspension cable stretch-draw anti-twist jack |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424465A (en) * | 2003-01-08 | 2003-06-18 | 柳州市威尔姆预应力有限公司 | Low stressed self anchoring method for group anchor steel tension cables |
-
2008
- 2008-04-25 CN CN 200810047471 patent/CN101264855B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502239A (en) * | 2015-12-11 | 2016-04-20 | 天津市天锻压力机有限公司 | Steel strand penetrating device for large steel structure traction equipment |
| CN105502239B (en) * | 2015-12-11 | 2017-11-03 | 天津市天锻压力机有限公司 | Large-scale steel structure thing pulling equipment steel strand device |
| CN106744462A (en) * | 2017-01-09 | 2017-05-31 | 苏州市能工基础工程有限责任公司 | For the jack of drawing steel stranded wire |
| CN106744462B (en) * | 2017-01-09 | 2022-07-26 | 苏州市能工基础工程有限责任公司 | Jack for drawing steel strand |
| CN108265887A (en) * | 2018-01-19 | 2018-07-10 | 四川升拓检测技术股份有限公司 | A kind of guider based on torque resistant |
| CN108675193A (en) * | 2018-07-04 | 2018-10-19 | 天津景天威力达液压千斤顶有限公司 | A kind of hydraulic jack of Anti-inclining |
| CN108675193B (en) * | 2018-07-04 | 2023-09-22 | 天津景天威力达液压千斤顶有限公司 | Tilting-preventing hydraulic jack |
| CN113753791A (en) * | 2021-09-18 | 2021-12-07 | 广东韶钢松山股份有限公司 | Special tool and method for replacing and sealing energy accumulator joint |
| CN114673095A (en) * | 2022-05-05 | 2022-06-28 | 中交一公局集团有限公司 | Space dysmorphism is with suspension cable stretch-draw anti-twist jack |
| CN114673095B (en) * | 2022-05-05 | 2024-05-03 | 中交一公局集团有限公司 | Stay cable tensioning anti-torsion jack for space special-shaped |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101264855B (en) | 2010-04-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN CCCC ROAD + BRIDGE SPECIAL ENGINEERING CO., Effective date: 20120606 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120606 Address after: 430014 No. 16, Nanjing Road, Jianghan District, Hubei, Wuhan Co-patentee after: CCCC Road & Bridge Special Engineering Co., Ltd. Patentee after: China Communications 2nd Navigational Bureau Address before: 430014 No. 16, Nanjing Road, Jianghan District, Hubei, Wuhan Patentee before: China Communications 2nd Navigational Bureau |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20180425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |