CN104251057B - Arc bent plate type bender - Google Patents
Arc bent plate type bender Download PDFInfo
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- CN104251057B CN104251057B CN201410410258.9A CN201410410258A CN104251057B CN 104251057 B CN104251057 B CN 104251057B CN 201410410258 A CN201410410258 A CN 201410410258A CN 104251057 B CN104251057 B CN 104251057B
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- pair
- arc
- plate type
- bent plate
- turning set
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 238000005452 bending Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 239000011513 prestressed concrete Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000002955 isolation Methods 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 235000015111 chews Nutrition 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to the technical field of prestressed concrete components by a fold line reinforcement pre-tensioning method, in particular to an arc bent plate type bender. The arc bent plate type bender comprises a pair of rod pieces and a rotating component, wherein multiple sets of arc bent plates are arranged on the pair of rod pieces in parallel; multiple bundles of steel strands penetrate among the multiple sets of the arc bent plates; adjacent two bundles of the steel strands are separated through isolation blocks; each of the arc bent plate is fixed with the pair of rod pieces through two pairs of fixing devices; the rotating component comprises a rotating shaft, a rotating sleeve and a fixing piece; the rotating sleeve and the fixing piece both coat the rotating shaft; the fixing piece is fixed with the ground; one end of the rotating sleeve is fixed with the lower ends of the pair of rod pieces; a rolling layer is arranged on the contacted surface of the rotating sleeve and the rotating shaft, and comprises a pair of circular plates and multiple balls arranged between the pair of circular plates; the pair of circular plates is perpendicular to the contacted surface of the rotating sleeve and the rotating shaft; and a gap is reserved. The arc bent plate type bender simplifies the bender structure, increases the bent radius of the steel strands, and effectively reduces local stress and loss of the steel strands.
Description
Technical field
The present invention relates to broken-line reinforcement pretensioning prestressed concrete component technology field, more particularly, to a kind of
Arc bended plate type bends up device.
Background technology
In broken-line reinforcement pretensioning prestressed concrete component, bending up device (also known as steering gear) is to realize
The critical component of prestress reinforcement turnover, its Typical Representative bends up device for Taiwan High Speed Rail pre-tensioning system, should
Bend up device and be provided with several rotatable guide rollers between two clamping plates, steel hinge line betwixt bends, clamping plate leads to
Cross bed die to be bolted on the free bearing that can vertically and horizontally rotate of resistance to plucking.China's Qinghai-Tibet Railway 24mT type is first
The device that bends up of Zhang Liang is will be clamping for two panels clamping plate with upper and lower each two split bolts, sevenSteel
Hinge line guide roller is fixed in two panels clamping plate, and clamping plate is connected to the anti-punching shear bar coagulation under bed die through bed die
On soil block free bearing, this free bearing makes to bend up device and can rotate and longitudinally micro sliding in both direction in length and breadth.
Above-mentioned bend up device for railroad bridge and highway bridge, be all that guiding roll-type clamping board type bends up device.
According to the mechanism bending up device work, its design should meet following principles：
1) design bending up device should reduce reduction to presstressed reinforcing steel intensity as far as possible, and therefore crooked process radius are unsuitable
Too small；
2) should enable to bend up device and longitudinally rotate along beam body so that bending up device be operationally primarily subjected to pulling force；
3) after applying prestressing force, beam body will produce compression, therefore bends up device and should have and indulges with beam body when putting
Function to microdisplacement.
4) bending up device partly needs to reuse below beam body, should be sturdy and durable, convenient disassembly；And bend up
Device then should simplify structure in beam body interior part because reusing as far as possible, reduces material usage, easily
In processing.
The device that bends up meeting mentioned above principle has several at present, but the most frequently used have roller shaft type and tuning-fork type
Two kinds, the part basic simlarity of Transducers Embedded in Concrete, difference essentially consists in and pedestal coupling part.Mainly lack
Putting is：
1) volume is larger, and therefore fee of material and processing cost are all higher；
2) structure constructs relative complex, installation not easy to remove,
3), after Transducers Embedded in Concrete, the space due to taking web is more, and concrete seriously undermines, and easily exists
With stress concentration and cracking are caused on the contact surface of concrete.
Content of the invention
For above-mentioned technical problem, the present invention has designed and developed a kind of arc bended plate type and has bent up device, and purpose exists
Bend up device structure in simplification, increase steel strand wires and bend up radius, effectively reduce steel strand wires local stress and loss.
The present invention provide technical scheme be：
A kind of arc bended plate type bends up device, including：
A pair of rod member, is arranged with multigroup arc bent plate thereon in parallel, and multi beam steel strand wires are located in multigroup arc
Between bent plate, separated by spacing block between adjacent two bundle steel strand wires, each arc bent plate passes through two to solid
Determine device to fix with the pair of rod member, every a pair of fixing device all includes on one fixing nut and solid once
Determine nut；
Revolving member, it includes rotary shaft, turning set and fixture, and described turning set and fixture all cover
It is located in described rotary shaft, and described fixture is fixed with ground, one end of described turning set and described
The lower end of rod member is fixed, described turning set and the contact surface of described rotary shaft is provided with a rolling layer,
Described rolling layer includes a pair of annular slab and is arranged on the middle multiple balls of the pair of annular slab, and many
Individual ball exceeds the pair of annular slab setting, the pair of annular slab and described turning set and described rotation
The contact surface of axle is vertically arranged, and is reserved with annular space；
Wherein, each arc bent plate all includes planar portions and a bend, and it is right that described planar portions pass through two
Fixing device is fixed with the pair of rod member, and the radian of described bend is 60～80 degree, and level is upwards
Bending, the lower surface of described arc bent plate is provided with multiple fixing grooves, and described steel strand wires are placed in described fixation
In groove, described spacing block is arranged between two neighboring fixing groove.
Preferably, described arc bended plate type bends up in device, and the side wall of the pair of rod member is provided with
External screw thread, described fixing device can be slided along the pair of rod member and is fixed on a certain position.
Preferably, described arc bended plate type bends up in device, and one end of described turning set is provided with installation
Hole, installs in the hole setting internal thread, and the pair of rod member and turning set are threaded.
Preferably, described arc bended plate type bends up in device, and described turning set is a pair, is respectively provided with
Two ends in described rotary shaft.
Preferably, described arc bended plate type bends up in device, and described fixture is U-shaped arm-tie, described
The sealing end of U-shaped arm-tie is set in described rotary shaft, and the openend of described U-shaped arm-tie is fixed with ground.
Preferably, described arc bended plate type bends up in device, and described fixture is arranged on described rotary shaft
Middle part.
Arc bended plate type of the present invention bends up in device, bends up device and constructs relatively easy, processing and manufacturing side
Just, materials are saved；The fixing device of arc bent plate is made up of multiple traveling nuts, easy accessibility, connects
Reliable；Upper fixing nut and lower fixing nut can adjust steel strand wires between the upper and lower away from adaptation is strong.Using arc
Shape bent plate, increases steel strand wires and bends up radius, effectively reduces steel strand wires local stress and loss, arc bent plate
Lower surface arranges multiple fixing grooves, and described steel strand wires are placed in described fixing groove, it is to avoid bend up device in work
When due to the effect of power depart from from fixing groove entangled.Bend up device lower rotational flexibly, due to turning
One rolling layer is provided with dynamic set and the contact surface of rotary shaft, and with described turning set and described rotary shaft
It is reserved with annular space, under force, the top bending up device can produce around rotary shaft between contact surface
Micro movement, and due to being to be in rolling contact between rolling layer and contact surface, frictional force is less, to bending up device
Abrasion less.In a pair of rod member casting concrete, and concrete is tightly combined, and snap-in force is strong, bends up
After the completion of device tensioning, it is convenient to remove, and only need to split a pair of rod member and turning set.
Brief description
Fig. 1 is the front view that arc bended plate type of the present invention bends up device；
Fig. 2 is the side view that arc bended plate type of the present invention bends up device；
Fig. 3 is the enlarged diagram of revolving member.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art's reference
Specification word can be implemented according to this.
As depicted in figs. 1 and 2, the present invention provides a kind of arc bended plate type to bend up device, including：
A pair of rod member 1, is arranged with multigroup arc bent plate 2 thereon in parallel, and multi beam steel strand wires 3 are located in multigroup
Between arc bent plate, separated by spacing block 4 between adjacent two bundle steel strand wires, each arc bent plate passes through
Two pairs of fixing devices 5 are fixed with the pair of rod member, and every a pair of fixing device all includes fixing nut on
6 and once fixing nut 7, upper fixing nut and lower fixing nut can be according to actual needs on a pair of rod members
Slide, thus arc bent plate is fixed on a certain position of a pair of rod member, steel strand wires are in the work of arc bent plate
With under bend up, then casting concrete, due to arc bent plate and steel strand wires contact surface arc transition, arc
Friction between bent plate and steel strand wires is rolling friction, and friction loss is less；
Revolving member, it includes rotary shaft 8, turning set 9 and fixture 10, described turning set and fixation
Part is all set in described rotary shaft, and described fixture is fixed with ground, one end of described turning set with
The lower end of the pair of rod member is fixed, as shown in figure 3, the contact surface of described turning set and described rotary shaft
On be provided with a rolling layer, described rolling layer includes a pair of annular slab 11 and is arranged on the pair of annular slab
Middle multiple balls 12, and multiple ball exceeds the pair of annular slab setting, with rolling layer with connect
During contacting surface contact, sliding friction between the two is changed into rolling friction, reduces friction loss, described one
The contact surface of annular slab and described turning set and described rotary shaft is vertically arranged, and is reserved with annular space
13 so that turning set can occur micro movement in annular space；
Wherein, each arc bent plate all includes planar portions 14 and a bend 15, and described planar portions are led to
Cross two fixing device is fixed with the pair of rod member, the radian of described bend is 60～80 degree, and water
Put down and be bent upwards, the lower surface of described arc bent plate is provided with multiple fixing grooves 16, and described steel strand wires are placed in
In described fixing groove, fixing groove is shiny surface with the contact surface of steel strand wires, to reduce steel strand wires by curved bend
The degree that plate chews, described spacing block is arranged between two neighboring fixing groove, prevents steel strand wires from fixation
After skidding off in groove, adjacent two bundle steel strand wires entangled so that the unbalance stress of concrete, and then
Affect integrally-built fastness.
Described arc bended plate type bends up in device, and the side wall of the pair of rod member is provided with external screw thread 17,
Described fixing device can be slided along the pair of rod member and is fixed on a certain position.
Described arc bended plate type bends up in device, and one end of described turning set is provided with installing hole 18, installs
In the hole arranges internal thread, and the pair of rod member inserts in the installing hole of turning set, and and rotates external threading even
Connect, during putting a steel strand wires, due to prestressed effect, concrete has arch up and compress to become
Gesture, also there is micro movement in turning set in annular space, adopt curved bend due to bending up device top therewith
Plate, increases steel strand wires and bends up radius, effectively reduce steel strand wires local stress and loss, when dismounting bends up device
When, only a pair of rod member need to be separated with turning set.
Described arc bended plate type bends up in device, and described turning set is a pair, is separately positioned on described rotation
The two ends of axle.
Described arc bended plate type bends up in device, and described fixture is U-shaped arm-tie, described U-shaped arm-tie
Sealing end is set in described rotary shaft, and the openend of described U-shaped arm-tie is fixed with ground.
Described arc bended plate type bends up in device, and described fixture is arranged on the middle part of described rotary shaft, and two
Between individual turning set.
Although embodiment of the present invention is disclosed as above, it is not restricted to specification and embodiment party
Listed utilization in formula, it can be applied to various suitable the field of the invention completely, for being familiar with ability
For the personnel in domain, it is easily achieved other modification, therefore without departing substantially from claim and wait homotype
Enclose under limited universal, the present invention is not limited to specific details and shown here as the figure with description
Example.
Claims (6)
1. a kind of arc bended plate type bends up device it is characterised in that including：
A pair of rod member, is arranged with multigroup arc bent plate thereon in parallel, and multi beam steel strand wires are located in multigroup arc
Between bent plate, separated by spacing block between adjacent two bundle steel strand wires, each arc bent plate passes through two to solid
Determine device to fix with the pair of rod member, every a pair of fixing device all includes on one fixing nut and solid once
Determine nut；
Revolving member, it includes rotary shaft, turning set and fixture, and described turning set and fixture all cover
It is located in described rotary shaft, and described fixture is fixed with ground, one end of described turning set and described
The lower end of rod member is fixed, described turning set and the contact surface of described rotary shaft is provided with a rolling layer,
Described rolling layer includes a pair of annular slab and is arranged on the middle multiple balls of the pair of annular slab, and many
Individual ball exceeds the pair of annular slab setting, the pair of annular slab and described turning set and described rotation
The contact surface of axle is vertically arranged, and is reserved with annular space；
Wherein, each arc bent plate all includes planar portions and a bend, and it is right that described planar portions pass through two
Fixing device is fixed with the pair of rod member, and the radian of described bend is 60～80 degree, and level is upwards
Bending, the lower surface of described arc bent plate is provided with multiple fixing grooves, and described steel strand wires are placed in described fixation
In groove, described spacing block is arranged between two neighboring fixing groove.
2. arc bended plate type as claimed in claim 1 bends up device it is characterised in that the pair of rod member
Side wall on be provided with external screw thread, described fixing device can move along the pair of rod member and be fixed on a certain
Position.
3. arc bended plate type as claimed in claim 2 bends up device it is characterised in that described turning set
One end is provided with installing hole, installs in the hole setting internal thread, and the pair of rod member and turning set are threaded.
4. arc bended plate type as claimed in claim 3 bends up device it is characterised in that described turning set is
A pair, it is separately positioned on the two ends of described rotary shaft.
5. arc bended plate type as claimed in claim 1 bends up device it is characterised in that described fixture is
U-shaped arm-tie, the sealing end of described U-shaped arm-tie is set in described rotary shaft, the opening of described U-shaped arm-tie
Mouth end is fixed with ground.
6. arc bended plate type as claimed in claim 5 bends up device it is characterised in that described fixture sets
Put the middle part in described rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410258.9A CN104251057B (en) | 2014-08-20 | 2014-08-20 | Arc bent plate type bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410410258.9A CN104251057B (en) | 2014-08-20 | 2014-08-20 | Arc bent plate type bender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104251057A CN104251057A (en) | 2014-12-31 |
| CN104251057B true CN104251057B (en) | 2017-02-08 |
Family
ID=52186288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410410258.9A Active CN104251057B (en) | 2014-08-20 | 2014-08-20 | Arc bent plate type bender |
Country Status (1)
| Country | Link |
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| CN (1) | CN104251057B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107718268B (en) * | 2017-09-15 | 2023-04-18 | 柳州欧维姆机械股份有限公司 | Roller bending device for pre-tensioning broken line reinforcement and roller bending device with quick unhooking device |
| CN107575031B (en) * | 2017-09-21 | 2023-01-24 | 柳州欧维姆机械股份有限公司 | Pretensioning compensation device capable of unloading force and method for pretensioning broken line reinforcement construction |
| CN108643581B (en) * | 2018-07-06 | 2023-09-08 | 柳州欧维姆机械股份有限公司 | Pretensioned broken line reinforcement non-character type roller bending device |
| CN111663447A (en) * | 2019-03-06 | 2020-09-15 | 广东省长大公路工程有限公司 | Prestressed bending and anchoring device for pre-tensioning precast beam plate and construction method |
| CN118650728B (en) * | 2024-08-12 | 2024-11-29 | 中交第二公路勘察设计研究院有限公司 | Modularized steering device for pretensioned broken line rib and design method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2685449Y (en) * | 2004-03-05 | 2005-03-16 | 上海市城市建设设计研究院 | External prestressing cable steering structure |
| DE502004005369D1 (en) * | 2004-09-17 | 2007-12-13 | Halfen Gmbh | Cable loop arrangement |
| JP4953127B2 (en) * | 2007-05-10 | 2012-06-13 | 住友電工スチールワイヤー株式会社 | PC steel strand feeder and laying method |
| CN100547210C (en) * | 2007-11-21 | 2009-10-07 | 王用中 | Broken-line reinforcement prestressed concrete pre-tensioned girder construction process |
| CN201125534Y (en) * | 2007-11-22 | 2008-10-01 | 王用中 | Prestress beam pull plate-type bending machine |
| CN201306005Y (en) * | 2008-11-13 | 2009-09-09 | 中铁二局股份有限公司 | Pre-tension broken-line reinforced bender |
-
2014
- 2014-08-20 CN CN201410410258.9A patent/CN104251057B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104251057A (en) | 2014-12-31 |
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| CB03 | Change of inventor or designer information |
Inventor after: Hui Tao Inventor after: Li Hui Inventor after: Zhang Jianxun Inventor after: Guo Lixue Inventor after: Han Gongxue Inventor after: Guan Qingquan Inventor after: Zhou Min Inventor after: Xie Fangfang Inventor after: Qu Dong Inventor after: Zhao Hongyu Inventor before: Zhang Jianxun Inventor before: Guo Lixue Inventor before: Hui Tao Inventor before: Han Gongxue Inventor before: Guan Qingquan Inventor before: Zhou Min |
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| COR | Change of bibliographic data | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee after: Zhengzhou Transportation planning Survey, Design and Research Institute Co.,Ltd. Address before: No.91, Longhai Middle Road, Erqi District, Zhengzhou City, Henan Province, 450000 Patentee before: ZHENGZHOU COMMUNICATIONS PLANNING SURVEY & DESIGN INSTITUTE |