CN205975368U - Prestressed steel beam threading device - Google Patents
Prestressed steel beam threading device Download PDFInfo
- Publication number
- CN205975368U CN205975368U CN201620848096.1U CN201620848096U CN205975368U CN 205975368 U CN205975368 U CN 205975368U CN 201620848096 U CN201620848096 U CN 201620848096U CN 205975368 U CN205975368 U CN 205975368U
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- China
- Prior art keywords
- strand
- steel
- steel bundle
- threading
- hole
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Abstract
The utility model provides a prestressed steel beam threading device, the device includes strand hand -hole ware, strand adjusting device, strand hand -hole ware includes a toper section of thick bamboo, protects a section of thick bamboo, strand baffle, and a toper section of thick bamboo is fixed in the inside of protecting a section of thick bamboo through threaded connection, strand baffle with protecting a section of thick bamboo, is provided with the through -hole at the center part of strand baffle, strand adjusting device includes intermediate lamella, a -frame, braking universal wheel, and A -frame fixes in the both sides of intermediate lamella, and the braking universal wheel is installed in A -frame's bottom, is provided with the hole of dredging of different diameters on the intermediate lamella. The utility model discloses a strand hand -hole ware and strand adjusting device's design, threading work through draw gear can once only accomplish a branch of steel strand wires can make things convenient for the threading work of quick completion steel strand wires. Simple structure has, advantages such as simple operation, high efficiency, and the cost is practiced thrift in suitable wide application, but strand hand -hole ware and strand adjusting device reuse.
Description
Technical field
This utility model is related to Bridge Construction field, more particularly, to a kind of prestressed strand threader.
Background technology
Prestressing force is the phenomenon crack in order to make up concrete too early, used (loading) in the past in component, and gave in advance
One precompression of concrete, that is, in the tensile region of concrete, with manually afterburning method, reinforcing bar is carried out tensioning, using steel
The retraction force of muscle, makes concrete in tension area be stressed in advance.This precharge pressure storing, when component bears by external load
When producing pulling force, offset the precompression in concrete in tension zone first, then increase with load, just make concrete in tension.
Which limits the elongation of concrete, delay or do not make crack to occur, here it is the prestressed concrete known to us
Soil.The threading operation of steel strand wires in the work progress of prestress box beam, should be completed before concreting.However, making by tradition
With the threading method of threader it would be desirable to carry out single steel strand wires threading, construction gets up to waste time and energy, if prestress steel
The span of twisted wire is longer, and during threading, steel strand wires often occur tiing a knot plugging and damage the phenomenons such as corrugated tube, deal with extremely fiber crops
Tired, not only can lose manpower, also can cause economic loss, construction quality cannot be guaranteed.Therefore, the utility model proposes one
Plant the prestress wire threader for box girder construction and method.
Number of patent application is that 2013201821139 patent document discloses a kind of " prestress steel for bridge construction
Twisted wire threader ", this device tensioning component " be the steel binding structure being made up of the prestress wire of more than, steel bundle
One end of structure is fixed with inspecting hole device " " inspecting hole device is the hollow-core construction of one end open, and steel binding structure is fixed on inspecting hole device along opening
Interior, then it is provided with, in the other end of inspecting hole device, the lead being connected with traction apparatuss." " design employing inspecting hole device can one for this structure
Secondary property completes the traction of multiple prestress wires.But " this inspecting hole device be by insert pin formed tensile force realize with
The connection of steel bundle, if tensile force is excessive, makes inspecting hole device cannot dismantle, can only be single use, and can be to steel bundle head
Cause brokenly ring.If tensile force is too small, steel bundle head unbalance stress can be made, indivedual steel strand wires come off and cause steel strand wires in steel bundle
The phenomenon of knotting plugging occurs.And on the premise of not having delivery apparatus, this patent document adopts many steel bundle threading simultaneously
Mode, due to the impact of steel strand wires stiffness by itself excessively loose it is easy to cause the mutual winding of steel strand wires between steel bundle
And knotting.
Utility model content
The purpose of this utility model is to provide a kind of prestressed strand threader, can complete steel strand wires easily and fast
Threading work.This utility model adopts the design of steel bundle inspecting hole device and steel bundle adjusting means, can be disposable by traction apparatuss
Complete the threading work of a branch of steel strand wires, it is simple to have a structure, simple operation, the advantage such as efficiently, suitably extensively apply, steel bundle is visited
Hole device and steel bundle adjusting means repeat and utilize, cost-effective.
For achieving the above object, this utility model employs the following technical solutions realization：
A kind of threader of prestressed strand, including steel bundle inspecting hole device, steel bundle adjusting means, described steel bundle inspecting hole device bag
Include conically shaped, casing, steel bundle baffle plate, conically shaped passes through screwed connection with casing, and steel bundle baffle plate is fixed on the inside of casing, in steel
The centre of bundle baffle plate is provided with through hole；Described steel bundle adjusting means includes intermediate plate, A-frame, brakes universal wheel, and three
Angle support is fixed on the both sides of intermediate plate, and braking universal wheel is arranged on the bottom of A-frame, intermediate plate is provided with different straight
The ease-hole in footpath.
Compared with prior art, the beneficial effects of the utility model are：
1) this utility model reasonable in design it is proposed that the design of steel bundle inspecting hole device, can disposably complete a branch of steel strand wires
Threading work, while improving efficiency, it is to avoid damage to corrugated tube, has and is easy to operate, and saving of work and time is safe and reliable etc.
Feature.
2) this utility model is with low cost, and structure is simple, and it is also extremely convenient, using round steel, general steel plate and steel pipe to make
Etc. being made, the construction of precast beam not only can be widely used in, the prestressing force being also applied to cast-in-situ box girder is applied
In work.
3) this utility model is in work progress, successfully solve the difficult difficult problem of threading because of span length, it is to avoid wear
Line radical is excessive, and the phenomenon of threading plugging knotting is it is ensured that while threading quality, substantially increase threading efficiency.
4) what the steel bundle adjusting means in this utility model was applied to the steel bundle of multiple diameter dredges traction, the scope of application
Extensively, use cooperatively with steel bundle inspecting hole device, it is good that steel strand wires are dredged with traction effect, effectively prevent plugging of tiing a knot, high working efficiency, can
It is used repeatedly, cost-effective, there is dissemination.
Brief description
Fig. 1 is the structural representation of steel bundle inspecting hole device in this utility model.
Fig. 2 is the process schematic diagram of steel bundle reinforcing bar head in this utility model.
Fig. 3 is the scheme of installation of steel bundle inspecting hole device and steel bundle in this utility model.
Fig. 4 is the operating diagram of round steel threading in this utility model.
Fig. 5 is the operating diagram of round steel haulage cable process in this utility model.
Fig. 6 is the operating diagram of rope traction steel harness threading process in this utility model.
Fig. 7 is the structural representation of steel bundle adjusting means in this utility model.
In figure：1. conically shaped, 2. screw thread, 3. steel bundle baffle plate, 4. casing, 5. through hole, 6. steel strand wires, 7. prestressed strand,
8. steel bundle inspecting hole device, 9. Ф 10 round steel, 10. bar straightener, 11. beams, 12. buckles, 13. hoist engines, 14. steel wire ropes, 15. welderings
Meat, 16. steel bundle adjusting meanss, 17. braking universal wheels, 18. intermediate plates, 19. A-frames, 20. ease-holes.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is further illustrated：
As shown in Figure 1, Figure 7 shows, a kind of threader of prestressed strand, including steel bundle inspecting hole device 8, steel bundle adjusting means
16, described steel bundle inspecting hole device 8 includes conically shaped 1, casing 4, steel bundle baffle plate 3, and conically shaped 1 passes through screwed connection, steel bundle with casing 4
Baffle plate 3 is fixed on the inside of casing 4, and the centre of steel bundle baffle plate 3 is provided with through hole 5；Described steel bundle adjusting means 16 is wrapped
Include intermediate plate 18, A-frame 19, braking universal wheel 17, A-frame 19 is fixed on the both sides of intermediate plate 18, brakes universal wheel
17 bottoms being arranged on A-frame 19, intermediate plate 18 is provided with the ease-hole 20 of different-diameter.
Conically shaped 1 is made up of corrosion resistant plate, is fabricated to loudspeaker type tube, and meanwhile, the design of trumpet type also significantly reduces wears
Frictional resistance and corrugated tube between in line process.Casing 4 by steel pipe manufacturing, while protecting prestressed strand 7 head, it is to avoid
Directly contact between prestressed strand 7 and corrugated tube it is therefore prevented that destruction to corrugated tube in threading process, conically shaped 1 with
Screwed connection is adopted between casing 4, screw thread fix stably, difficult for drop-off.Steel bundle baffle plate 3 is welded on the inside of casing 4, steel bundle baffle plate
3 are coaxially disposed with casing 4 and conically shaped 1, see Fig. 3, and longer steel strand wires 6 in the middle of prestressed strand 7 during threading are from steel bundle baffle plate 3
The stomidium of middle through hole 5 and conically shaped 1 passes, and the head of other steel strand wires of prestressed strand 7 becomes a planar top to steel bundle
In the plane of baffle plate 3, make the head uniform force of prestressed strand 7, be difficult to snap, so that the steel strand wires in steel bundle is excessively smoothly put down
Steady does not tie a knot through corrugated tube.And, such structure can prevent the head of prestressed strand 7 during stretching
By steel bundle inspecting hole device 8 wedge of taper extremely so that the steel bundle inspecting hole device 8 after using cannot disassemble, the steel in this utility model
Bundle inspecting hole device 8 can repeatedly utilize, cost-effective, has dissemination.
The intermediate plate 18 of steel bundle adjusting means 16 adopts Q235 steel plate to make, and specification is 6*200*2000, and middle laying is not
With diameter ease-hole 20, can be selected, the A-frame at two ends according to the difference of the steel strand wires number in steel strand wires steel bundle 7
19 is the thick Q235 steel plate of 10mm, and using being welded to connect between intermediate plate 18 and A-frame 19, the bottom of A-frame 19 is arranged
Braking universal wheel 17, is easy to move.During use, steel bundle adjusting means 16 is positioned over the front end of corrugated tube, to multiple prestress steels
When bundle 7 carries out threading, the prestressed strand 7 of different-diameter passes through the ease-hole 20 in steel bundle adjusting means 16, then penetrates ripple
Pipe, plays dredging and fixation to prestressed strand 7, prevents steel strand wires in threading process, due to the shadow of stiffness by itself
Ring and excessively loose, thus the steel strand wires between steel bundle can be prevented tangled.
A kind of prestressed strand threading method of employing prestressed strand threader, comprises the steps：
1) see Fig. 4, prepare the round steel of an a diameter of Ф 10, by straightener 10 from the penetrating end of steel bundle by Ф 10 round steel
9 threading are to corrugated tube, and extend through opposite side.This step ensure Ф 10 round steel 9 length while, the power of straightener 10
Meet the requirements, produced a desired effect using the enough rigidity of Ф 10 round steel 9 and flexibility.
2) Ф 10 round steel 9 that will pass through corrugated tube is connected with the steel wire rope on hoist engine 13 by buckle, and in steel bundle
Penetrating end is drawn again by straightener 10 opposite direction, makes steel wire rope 14 be through to steel bundle penetrating end, sees Fig. 5.
3) see Fig. 2, steel strand wires are neatly put, arrange bunchy, the steel strand wires 6 in the middle of reserved steel bundle are slightly longer than other steel and twist
Line, to draw, makes each steel strand wires head and center strand with reference to integral by welding.By steel bundle after cooling to be welded
Inspecting hole device 8 is arranged on the head of prestressed strand 7, then prestressed strand 7 is passed through the ease-hole 20 in steel bundle adjusting means 16,
See Fig. 3, Fig. 7.
4) see Fig. 6, the prestressed strand 7 installing steel bundle inspecting hole device 8 is connected with steel wire rope 14 by buckle, by steel
Bundle adjusting means 16 dredges steel strand wires, is drawn using hoist engine 13, completes final steel strand wires threading work.
Be the specific step of steel strand integral harness threading above, in work progress we it is also noted that following some：
1) before threading work is carried out, bundles of steel strand wires should be put in advance in order, steel strand wires top weld is solid, prevent
Only produce steel strand wires obscission in threading process.
2) length in reserve of steel strand wires 6 should meet design requirement (about 35cm), and the steel strand wires of top weld should cut
Disconnected process, makes the end face of each steel strand wires become a vertical plane, in order to later stage tensioning.
The utility model proposes the threading method of a kind of prestressed strand threader and prestressed strand, this device can
It is widely used in the prestress wire threading operation of the engineering structure such as prefabricated and cast-in-place, compared to traditional single steel strand
Threading mode, whole harness threading is more convenient, saves workman's man-hour, in the case that individual steel strand radical is more, effect is more
Substantially, substantially increase threading efficiency.This utility model, in practical process, successfully overcomes the difficult difficulty of the long threading of span
Topic, it is to avoid the situation of steel strand wires knotting in threading process occurs, possesses high efficiency, the advantage such as high security.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any those familiar with the art in the technical scope that this utility model discloses, according to this practicality
New technical scheme and its utility model design in addition equivalent or change, all should cover in protection model of the present utility model
Within enclosing.
Claims (1)
1. a kind of prestressed strand threader is it is characterised in that include steel bundle inspecting hole device, steel bundle adjusting means, described steel bundle
Inspecting hole device includes conically shaped, casing, steel bundle baffle plate, and conically shaped passes through screwed connection with casing, and steel bundle baffle plate is fixed on casing
Inside, is provided with through hole in the centre of steel bundle baffle plate；Described steel bundle adjusting means includes intermediate plate, A-frame, braking
Universal wheel, A-frame is fixed on the both sides of intermediate plate, and braking universal wheel is arranged on the bottom of A-frame, intermediate plate is arranged
There is the ease-hole of different-diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620848096.1U CN205975368U (en) | 2016-08-08 | 2016-08-08 | Prestressed steel beam threading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620848096.1U CN205975368U (en) | 2016-08-08 | 2016-08-08 | Prestressed steel beam threading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205975368U true CN205975368U (en) | 2017-02-22 |
Family
ID=58030240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620848096.1U Withdrawn - After Issue CN205975368U (en) | 2016-08-08 | 2016-08-08 | Prestressed steel beam threading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205975368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087759A (en) * | 2016-08-08 | 2016-11-09 | 中国三冶集团有限公司 | A kind of prestressed strand threader and the threading method of prestressed strand |
-
2016
- 2016-08-08 CN CN201620848096.1U patent/CN205975368U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087759A (en) * | 2016-08-08 | 2016-11-09 | 中国三冶集团有限公司 | A kind of prestressed strand threader and the threading method of prestressed strand |
| CN106087759B (en) * | 2016-08-08 | 2018-01-09 | 中国三冶集团有限公司 | A kind of threading method of prestressed strand threader and prestressed strand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20180109 |