CN105239511A - Steel strand tension device - Google Patents
Steel strand tension device Download PDFInfo
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- CN105239511A CN105239511A CN201510569464.9A CN201510569464A CN105239511A CN 105239511 A CN105239511 A CN 105239511A CN 201510569464 A CN201510569464 A CN 201510569464A CN 105239511 A CN105239511 A CN 105239511A
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- steel strand
- tension device
- magnetorheological
- fixed block
- wheel
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Abstract
The invention discloses a steel strand tension device, comprising a bridge, prestressing force holes arranged in the bridge, a steel strand passing through the prestressing force holes, an oil cylinder used to pull the steel strand, a hydraulic pump used to drive the oil cylinder to operate, and a magnetorheological damping body used to fix the steel strand. The structure improvement is clever, and the steel strand is fixed by using the characteristics of a magnetorheological fluid, and the steel strand is prevented from rebounded. The device can ensure project quality of the bridge, and operation is more convenient and safer.
Description
Technical field
The present invention relates to pre-stressed bridge field, specifically a kind of steel strand tension device.
Background technology
In the construction of bridge, need steel strand in the prestressed pipe of bridge, then tensioning equipment extended steel twisted wire is used, on steel strand, cone-shaped clip is set with after stretching, steel strand are utilized to be released the resilience of rear steel strand, cone-shaped clip is made to fill in the Kong Weizhong tensioning steel strand of pre-buried ground tackle pad, this way needs to apply the power larger than the prestressing force of design by Method of Steel Strand Stretching, pulling force produces comparatively difficulty, particularly, after steel strand resilience, the prestressing force that steel strand are applied on bridge often has larger difference with the prestressing force of design, this must have a huge impact workmanship.
Therefore, the object of this invention is to provide a kind of steel strand tension device, its structure is improved ingenious, utilizes the characteristic of magnetic flow liquid to fix steel strand, prevents its resilience, can guarantee the workmanship of bridge, more convenient operation safety.
Summary of the invention
In view of this, the object of the invention is to overcome defect of the prior art, provide structure to improve ingenious, utilize the characteristic of magnetic flow liquid to fix steel strand, prevent resilience, the workmanship of bridge can be guaranteed, the steel strand tension device of more convenient operation safety
Steel strand tension device of the present invention, comprise bridge, the prestress hole be arranged in bridge, through described prestress hole steel strand, for draw steel strand oil cylinder, for driving the hydraulic pump of cylinder action and the magnetorheological damping body for fixing steel strand; The piston be fixedly connected with described steel strand is provided with in described oil cylinder, described steel strand are fixed with fixed block, described magnetorheological damping body comprises to roll with the fixed block regulating wheel coordinated and the breast wheel be in transmission connection with described regulating wheel, being arranged at the magnetorheological housing for holding this breast wheel outside described breast wheel, being filled with magnetic flow liquid in described magnetorheological housing and being wound with electromagnetic coil outside magnetic flow liquid housing;
Steel strand tension device of the present invention also comprises controller, and institute's controller is electrically connected on described hydraulic pump and electromagnetic coil is respectively used to the start and stop of hydraulic control pump and the drag size of magnetorheological damping body;
Further, described steel strand are provided with tensiometer, and described piston outer face is provided with the cavity holding tensiometer, and described tensiometer output end signal is connected to described controller;
Further, described fixed block sidewall is provided with tooth bar along piston movement direction, and described regulating wheel comprises the gear coordinated with this tooth bar and the wheel shaft coordinated with this gear drive; Described magnetorheological housing is placed on outside wheel shaft, and described breast wheel comprises the gear piece being circumferentially distributed in wheel shaft surface;
Further, described piston and fixed block are equipped with steel strand via hole, be provided with front end cone-shaped clip between described fixed block and steel strand and fixed by this front end cone-shaped clip and steel strand, described piston outer end is fixed with ground tackle, and described steel strand are passed described steel strand via hole and are fixedly connected with ground tackle by a rear end cone-shaped clip;
Further, described piston side wall is provided with the spacing shaft shoulder, and described oil cylinder outer end is provided with and coordinates spacing spacing ring with the described spacing shaft shoulder.
The invention has the beneficial effects as follows: steel strand tension device of the present invention, steel strand are through the stress hole on bridge, and when after charged pressure oil in the oil cylinder of this device, piston is fixedly connected with steel strand and moves away from bridge, thus tension steel strand, after the pulling force of steel strand reaches setting value, can be energized to electromagnetic coil, magnetic flow liquid be presented solid-state, make the locking position of fixed block, and then prevent steel strand resilience, the workmanship of bridge can be guaranteed, more convenient operation safety.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of magnetorheological damping body.
Detailed description of the invention
Fig. 1 is structural representation of the present invention, as shown in the figure, the pre-stress stretching device of the present embodiment, comprise bridge 1, the prestress hole be arranged in bridge 1, through described prestress hole steel strand 5, for draw steel strand 5 oil cylinder 3, for driving the hydraulic pump 7 of oil cylinder 3 action and the magnetorheological damping body for fixing steel strand 5, the piston 9 be fixedly connected with described steel strand 5 is provided with in described oil cylinder 3, described steel strand 5 are fixed with fixed block 12, described magnetorheological damping body comprises to roll with fixed block 12 regulating wheel 11 coordinated and the breast wheel be in transmission connection with described regulating wheel 11, the magnetorheological housing 13 for holding this breast wheel is arranged at outside described breast wheel, be filled with magnetic flow liquid in described magnetorheological housing 13 and be wound with electromagnetic coil 14 outside magnetic flow liquid housing 13, when after charged pressure oil in the oil cylinder 3 of this device, piston 9 is fixedly connected with steel strand 5 and moves away from bridge 1, thus tension steel strand 5, after the pulling force of steel strand 5 reaches setting value, can be energized to electromagnetic coil 14, magnetic flow liquid is presented solid-state, make the locking position of fixed block 12, and then prevent steel strand 5 resilience, the workmanship of bridge 1 can be guaranteed, more convenient operation safety.
Steel strand 5 tensioning equipment of the present embodiment also comprises controller 6, institute's controller 6 is electrically connected on described hydraulic pump 7 and electromagnetic coil 14 is respectively used to the start and stop of hydraulic control pump 7 and the drag size of magnetorheological damping body, when needs tension steel strand 5, control hydraulic pump 7 is opened, make piston 9 movement tensions steel strand 5, after the prestressing force of steel strand 5 reaches setting value, controller 6 controls electromagnetic coil 14 and is energized, and makes regulating wheel 11 fixing thus the position of locking fixed block 12.
In the present embodiment, described steel strand 5 are provided with tensiometer, described piston 9 outer face is provided with and holds the cavity of tensiometer, and described tensiometer output end signal is connected to described controller 6, the start and stop of the pulling force signal hydraulic control pump 7 that controller 6 is gathered by puller system and being energized to electromagnetic coil 14.
In the present embodiment, described fixed block 12 sidewall is provided with tooth bar 10 along piston 9 direction of motion, and described regulating wheel 11 comprises the gear coordinated with this tooth bar 10 and the wheel shaft 15 coordinated with this gear drive; Described magnetorheological housing 13 is placed on outside wheel shaft 15, described breast wheel comprises the gear piece 16 being circumferentially distributed in wheel shaft 15 surface, when utilizing oil cylinder 3 to strain steel strand 5, magnetic flow liquid is low viscosity state, therefore, rotatably coordinate between regulating wheel 11 with magnetic flow liquid housing 13, steel strand 5 can freely pull, after steel strand 5 prestressing force reaches setting value, magnetic flow liquid can be made to be curdled appearance to electromagnetic coil 14 energising, therefore interfix between regulating wheel 11 and magnetic flow liquid housing 13, ensure that steel strand 5 are fixed.
In the present embodiment, described piston 9 is equipped with steel strand 5 via hole with fixed block 12, be provided with front end cone-shaped clip between described fixed block 12 and steel strand 5 and fixed by this front end cone-shaped clip and steel strand 5, described piston 9 outer end is fixed with ground tackle 4, and described steel strand 5 are passed described steel strand 5 via hole and are fixedly connected with ground tackle 4 by a rear end cone-shaped clip 8.
In the present embodiment, described piston 9 sidewall is provided with the spacing shaft shoulder, and described oil cylinder 3 outer end is provided with and coordinates spacing spacing ring with the described spacing shaft shoulder, thus realizes limiting piston 9 maximum tension distance, avoids steel strand 5 to break.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a steel strand tension device, is characterized in that: comprise bridge, the prestress hole be arranged in bridge, through described prestress hole steel strand, for draw steel strand oil cylinder, for driving the hydraulic pump of cylinder action and the magnetorheological damping body for fixing steel strand; The piston be fixedly connected with described steel strand is provided with in described oil cylinder, described steel strand are fixed with fixed block, described magnetorheological damping body comprises to roll with the fixed block regulating wheel coordinated and the breast wheel be in transmission connection with described regulating wheel, being arranged at the magnetorheological housing for holding this breast wheel outside described breast wheel, being filled with magnetic flow liquid in described magnetorheological housing and being wound with electromagnetic coil outside magnetic flow liquid housing.
2. steel strand tension device according to claim 1, is characterized in that: also comprise controller, and institute's controller is electrically connected on described hydraulic pump and electromagnetic coil is respectively used to the start and stop of hydraulic control pump and the drag size of magnetorheological damping body.
3. steel strand tension device according to claim 2, is characterized in that: described steel strand are provided with tensiometer, and described piston outer face is provided with the cavity holding tensiometer, and described tensiometer output end signal is connected to described controller.
4. steel strand tension device according to claim 3, is characterized in that: described fixed block sidewall is provided with tooth bar along piston movement direction, and described regulating wheel comprises the gear coordinated with this tooth bar and the wheel shaft coordinated with this gear drive; Described magnetorheological housing is placed on outside wheel shaft, and described breast wheel comprises the gear piece being circumferentially distributed in wheel shaft surface.
5. steel strand tension device according to claim 4, it is characterized in that: described piston and fixed block are equipped with steel strand via hole, be provided with front end cone-shaped clip between described fixed block and steel strand and fixed by this front end cone-shaped clip and steel strand, described piston outer end is fixed with ground tackle, and described steel strand are passed described steel strand via hole and are fixedly connected with ground tackle by a rear end cone-shaped clip.
6. steel strand tension device according to claim 5, is characterized in that: described piston side wall is provided with the spacing shaft shoulder, and described oil cylinder outer end is provided with and coordinates spacing spacing ring with the described spacing shaft shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569464.9A CN105239511B (en) | 2015-09-09 | 2015-09-09 | Steel strand tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510569464.9A CN105239511B (en) | 2015-09-09 | 2015-09-09 | Steel strand tension device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105239511A true CN105239511A (en) | 2016-01-13 |
| CN105239511B CN105239511B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510569464.9A Active CN105239511B (en) | 2015-09-09 | 2015-09-09 | Steel strand tension device |
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| Country | Link |
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| CN (1) | CN105239511B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863274A (en) * | 2016-06-03 | 2016-08-17 | 天津银龙预应力材料股份有限公司 | Automatic locking device special for prestressed material stretching extension |
| CN107825582A (en) * | 2017-10-29 | 2018-03-23 | 佛山路桥预制构件有限公司 | A kind of electromagnetic type limiter and its limit method for prestress engineering |
| CN112726961A (en) * | 2020-12-29 | 2021-04-30 | 福建省晓沃建设工程有限公司 | Prestressed steel strand laying device and method |
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| CN102152396A (en) * | 2011-01-10 | 2011-08-17 | 昆明沃特尔机电设备有限公司 | Mobile prestressed steel strand tension device |
| CN102912987A (en) * | 2012-11-09 | 2013-02-06 | 柳州市邱姆预应力机械有限公司 | Stress applying method and tool thereof for low retraction pre-stress concrete member |
| CN103174094A (en) * | 2013-03-15 | 2013-06-26 | 合肥惠利普电机有限公司 | Resilience prevention bridge girder prestress tension device |
| CN104652287A (en) * | 2015-02-25 | 2015-05-27 | 林同棪国际工程咨询（中国）有限公司 | Bridge pre-stress tension device |
| CN204475190U (en) * | 2015-02-10 | 2015-07-15 | 杭州富锚机械有限公司 | A kind of low retraction ground tackle tensioning equipment |
| JP2015140555A (en) * | 2014-01-28 | 2015-08-03 | 首都高速道路株式会社 | Re-anchorage method of existing pc steel material |
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2015
- 2015-09-09 CN CN201510569464.9A patent/CN105239511B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152396A (en) * | 2011-01-10 | 2011-08-17 | 昆明沃特尔机电设备有限公司 | Mobile prestressed steel strand tension device |
| CN102912987A (en) * | 2012-11-09 | 2013-02-06 | 柳州市邱姆预应力机械有限公司 | Stress applying method and tool thereof for low retraction pre-stress concrete member |
| CN103174094A (en) * | 2013-03-15 | 2013-06-26 | 合肥惠利普电机有限公司 | Resilience prevention bridge girder prestress tension device |
| JP2015140555A (en) * | 2014-01-28 | 2015-08-03 | 首都高速道路株式会社 | Re-anchorage method of existing pc steel material |
| CN204475190U (en) * | 2015-02-10 | 2015-07-15 | 杭州富锚机械有限公司 | A kind of low retraction ground tackle tensioning equipment |
| CN104652287A (en) * | 2015-02-25 | 2015-05-27 | 林同棪国际工程咨询（中国）有限公司 | Bridge pre-stress tension device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863274A (en) * | 2016-06-03 | 2016-08-17 | 天津银龙预应力材料股份有限公司 | Automatic locking device special for prestressed material stretching extension |
| CN105863274B (en) * | 2016-06-03 | 2023-09-08 | 天津银龙预应力材料股份有限公司 | Automatic locking device special for stretching and stretching of prestressed material |
| CN107825582A (en) * | 2017-10-29 | 2018-03-23 | 佛山路桥预制构件有限公司 | A kind of electromagnetic type limiter and its limit method for prestress engineering |
| CN107825582B (en) * | 2017-10-29 | 2019-06-04 | 佛山路桥预制构件有限公司 | A kind of electromagnetic type limiter and its limit method for prestress engineering |
| CN112726961A (en) * | 2020-12-29 | 2021-04-30 | 福建省晓沃建设工程有限公司 | Prestressed steel strand laying device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105239511B (en) | 2017-02-22 |
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