CN105239511B - Steel strand tension device - Google Patents
Steel strand tension device Download PDFInfo
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- CN105239511B CN105239511B CN201510569464.9A CN201510569464A CN105239511B CN 105239511 B CN105239511 B CN 105239511B CN 201510569464 A CN201510569464 A CN 201510569464A CN 105239511 B CN105239511 B CN 105239511B
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- steel strand
- strand wires
- tension device
- magnetorheological
- piston
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Abstract
The invention discloses a steel strand tension device, comprising a steel strand passing through 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 use tensioning equipment extended steel to twist
Line, is set with cone-shaped clip on steel strand wires after stretching, is released the resilience of rear steel strand wires using steel strand wires, so that cone-shaped clip is filled in
Tensioning steel strand wires in the hole position of pre-buried anchorage pad, this way needs the bigger power of the prestressing force applying ratio design to draw steel strand wires
Stretch, pulling force produce more difficult, particularly, after steel strand wires resilience, steel strand wires be applied to prestressing force on bridge often with design
Prestressing force have larger difference, this necessarily has a huge impact to construction quality.
Therefore, it is an object of the invention to provide a kind of steel strand tension device, its structure is improved ingenious, using magnetic flow liquid
Characteristic fix steel strand wires, prevent its resilience it can be ensured that the construction quality of bridge, more convenient operation safety.
Content of the invention
In view of this, the purpose of the present invention is to overcome defect of the prior art, provides structure to improve ingenious, using magnetic current
The characteristic becoming liquid fixes steel strand wires, prevents resilience it can be ensured that the construction quality of bridge, the steel strand wires of more convenient operation safety
Tensioning equipment
The steel strand tension device of the present invention, including may pass through the steel strand wires in bridge prestress hole, be used for drawing steel strand wires
Oil cylinder, for driving the hydraulic pump of cylinder action and for fixing the magnetorheological damping body of steel strand wires；Set in described oil cylinder
There is the piston being fixedly connected with described steel strand wires, described steel strand wires are fixed with fixed block, described magnetorheological damping body includes
The breast wheel be in transmission connection with the tensioning wheel of fixed block rolling cooperation and with described tensioning wheel, is arranged at use outside described breast wheel
In the magnetorheological housing accommodating this breast wheel, it is filled with described magnetorheological housing and is wound with outside magnetic flow liquid and magnetorheological housing
Solenoid；
The steel strand tension device of the present invention also includes controller, and institute's controller is electrically connected to described hydraulic pump and electromagnetism
Coil is respectively used to control the start and stop of hydraulic pump and the drag size of magnetorheological damping body；
Further, described steel strand wires are provided with strain gauge, and described piston outer face is provided with the cavity accommodating strain gauge, described
Strain gauge output end signal is connected to described controller；
Further, described fixed block side wall is provided with tooth bar along piston movement direction, and described tensioning wheel includes joining with this tooth bar
The gear closing and the wheel shaft with this gear drive cooperation；Described magnetorheological housing is placed on outside wheel shaft, and described breast wheel includes edge
The circumferentially distributed gear piece in wheel shaft surface；
Further, described piston and fixed block are equipped with steel strand wires via, before being provided between described fixed block and steel strand wires
End toper intermediate plate is simultaneously fixed with steel strand wires by this front end cone-shaped clip, and described piston outer end is fixed with anchorage, and described steel twists
Line is passed through described steel strand wires via and is fixedly connected with anchorage 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 limit with the described spacing shaft shoulder
The spacing ring of position.
The invention has the beneficial effects as follows：The steel strand tension device of the present invention, steel strand wires pass through the stress hole on bridge, when
After the charged pressure oil into the oil cylinder of this device, piston is fixedly connected with steel strand wires and away from bridge motion, thus tensioning steel twists
Line, after the pulling force of steel strand wires reaches setting value, can be energized to solenoid, make magnetic flow liquid assume solid-state, make fixed block
Position locks, and then prevents steel strand wires resilience it can be ensured that the construction quality of bridge, more convenient operation safety.
Brief description
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of magnetorheological damping body.
Specific embodiment
Fig. 1 is the structural representation of the present invention；As illustrated, the pre-stress stretching device of the present embodiment, including may pass through
The steel strand wires 5 of bridge 1 prestress hole, for draw steel strand wires 5 oil cylinder 3, for drive oil cylinder 3 action hydraulic pump 7 and
For fixing the magnetorheological damping body of steel strand wires 5；It is provided with the piston 9 being fixedly connected with described steel strand wires 5, institute in described oil cylinder 3
State and fixed block 12 is fixed with steel strand wires 5, described magnetorheological damping body includes rolling the tensioning wheel 11 of cooperation with fixed block 12
And the breast wheel being in transmission connection with described tensioning wheel 11, it is arranged at for accommodating the magnetorheological of this breast wheel outside described breast wheel
Housing 13, is filled with described magnetorheological housing 13 and is wound with solenoid 14 outside magnetic flow liquid and magnetorheological housing 13, when to
After charged pressure oil in the oil cylinder 3 of this device, piston 9 is fixedly connected with steel strand wires 5 and moves away from bridge 1, thus tensioning steel
Twisted wire 5, after the pulling force of steel strand wires 5 reaches setting value, can be energized to solenoid 14, make magnetic flow liquid assume solid-state, make solid
Determine the position locking of block 12, and then prevent steel strand wires 5 resilience it can be ensured that the construction quality of bridge 1, more convenient operation safety.
Steel strand wires 5 tensioning equipment of the present embodiment also includes controller 6, institute's controller 6 be electrically connected to described hydraulic pump 7 with
And solenoid 14 is respectively used to control the start and stop of hydraulic pump 7 and the drag size of magnetorheological damping body, when needing to strain steel
During twisted wire 5, control hydraulic pump 7 is opened, and makes piston 9 movement tensions steel strand wires 5, sets when the prestressing force of steel strand wires 5 reaches
After definite value, controller 6 controls solenoid 14 to be energized so that tensioning wheel 11 is fixed thus locking the position of fixed block 12.
In the present embodiment, described steel strand wires 5 are provided with strain gauge, and described piston 9 outer face is provided with the chamber accommodating strain gauge
Body, described strain gauge output end signal is connected to described controller 6, and the pulling force signal that controller 6 is gathered by puller system controls
Start and stop of hydraulic pump 7 and solenoid 14 is energized.
In the present embodiment, described fixed block 12 side wall is provided with tooth bar 10 along piston 9 direction of motion, and described tensioning wheel 11 includes
Gear and the wheel shaft 15 with this gear drive cooperation with the cooperation of this tooth bar 10；Described magnetorheological housing 13 is placed on wheel shaft 15
Outward, described breast wheel includes the circumferentially distributed gear piece 16 in wheel shaft 15 surface, when using oil cylinder 3 tension steel strand wires 5, magnetic current
Becoming liquid is in low viscosity state, therefore, rotatably coordinates between tensioning wheel 11 and magnetorheological housing 13, steel strand wires 5 can freely pull,
After steel strand wires 5 prestressing force reaches setting value, magnetic flow liquid can be made to be in curdled appearance solenoid 14 energising, therefore tensioning
Interfix between wheel 11 and magnetorheological housing 13 it is ensured that steel strand wires 5 are fixing.
In the present embodiment, described piston 9 and fixed block 12 are equipped with steel strand wires 5 via, described fixed block 12 and steel strand wires 5
Between be provided with front end cone-shaped clip fixing by this front end cone-shaped clip and steel strand wires 5, described piston 9 outer end is fixed with anchor
Tool 4, described steel strand wires 5 are passed through described steel strand wires 5 via and are fixedly connected with anchorage 4 by a rear end cone-shaped clip 8.
In the present embodiment, described piston 9 side wall is provided with the spacing shaft shoulder, and described oil cylinder 3 outer end is provided with and the described spacing shaft shoulder
Coordinate spacing spacing ring, thus realizing piston 9 maximum tension distance is limited, it is to avoid break steel strand wires 5.
Finally illustrate, above example only in order to technical scheme to be described and unrestricted, although with reference to relatively
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, the objective without deviating from technical solution of the present invention and scope, and it all should be covered at this
In the middle of the right of invention.
Claims (6)
1. a kind of steel strand tension device it is characterised in that：Including may pass through the steel strand wires in bridge prestress hole, be used for drawing steel
The oil cylinder of twisted wire, for driving the hydraulic pump of cylinder action and for fixing the magnetorheological damping body of steel strand wires；Described oil cylinder
Inside it is provided with the piston being fixedly connected with described steel strand wires, described steel strand wires are fixed with fixed block, described magnetorheological damping body
Including the tensioning wheel rolling cooperation with fixed block and the breast wheel being in transmission connection with described tensioning wheel, arrange outside described breast wheel
In the magnetorheological housing for accommodating this breast wheel, it is filled with described magnetorheological housing and twines outside magnetic flow liquid and magnetorheological housing
It is wound with solenoid.
2. steel strand tension device according to claim 1 it is characterised in that：Also include controller, institute's controller is electrically connected
It is connected to described hydraulic pump and solenoid is respectively used to control the start and stop of hydraulic pump and the drag size of magnetorheological damping body.
3. steel strand tension device according to claim 2 it is characterised in that：Described steel strand wires are provided with strain gauge, institute
State piston outer face and be provided with the cavity accommodating strain gauge, described strain gauge output end signal is connected to described controller.
4. steel strand tension device according to claim 3 it is characterised in that：Described fixed block side wall is along piston movement side
To being provided with tooth bar, described tensioning wheel includes and the gear of this tooth bar cooperation and the wheel shaft with this gear drive cooperation；Described magnetic
Rheology housing is placed on outside wheel shaft, and described breast wheel includes the circumferentially distributed gear piece in wheel shaft surface.
5. steel strand tension device according to claim 4 it is characterised in that：Described piston and fixed block are equipped with steel and twist
Line via, is provided with front end cone-shaped clip and passes through this front end cone-shaped clip with steel strand wires admittedly between described fixed block and steel strand wires
Fixed, described piston outer end is fixed with anchorage, and described steel strand wires pass through described steel strand wires via and pass through a rear end cone-shaped clip
It is fixedly connected with anchorage.
6. steel strand tension device according to claim 5 it is characterised in that：Described piston side wall is provided with the spacing shaft shoulder,
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 CN105239511A (en) | 2016-01-13 |
| CN105239511B true CN105239511B (en) | 2017-02-22 |
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Family Applications (1)
| 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 |
|---|---|
| CN (1) | CN105239511B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112726961B (en) * | 2020-12-29 | 2022-03-22 | 福建省晓沃建设工程有限公司 | Prestressed steel strand laying device and method |
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 |
| 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 |
-
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105239511A (en) | 2016-01-13 |
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