CN204899232U - Self -lock device of prestressing steel stretch -draw - Google Patents
Self -lock device of prestressing steel stretch -draw Download PDFInfo
- Publication number
- CN204899232U CN204899232U CN201520482027.9U CN201520482027U CN204899232U CN 204899232 U CN204899232 U CN 204899232U CN 201520482027 U CN201520482027 U CN 201520482027U CN 204899232 U CN204899232 U CN 204899232U
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- China
- Prior art keywords
- stretch
- draw
- link plate
- jack
- tension rod
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Abstract
The utility model provides a self -lock device of prestressing steel stretch -draw, including stretch -draw roof beam, jack, landing leg, link plate and stretch -draw pole, the jack has at least one, and it is installed in the stretch -draw roof beam, the bottom of jack with the one end of landing leg links to each other, the other end of landing leg stretches out outside the end plate of stretch -draw roof beam, the link plate is installed at the end plate inboardly, it has a plurality of hole to open on the link plate, also opens corresponding a plurality of through -hole on the end plate, the tip of stretch -draw pole stretches into in the stretch -draw roof beam, the tip card of stretch -draw pole is on the link plate, synchronous machine is equipped with in the end plate outside, the last belt that is provided with of synchronous machine, the position of belt with the female position of lock on the stretch -draw pole is corresponding. The beneficial effects of the utility model are that: by adopting the above technical scheme, the automatic machine has replaced dependent manual operation, has improved production efficiency, has also guaranteed the homogeneity and stability of prestressing steel stretching force value simultaneously.
Description
Technical field
The utility model belongs to prestressed stretch-draw field, especially relates to a kind of self-locking device of prestressed reinforcement stretch-draw.
Background technology
Prestressed concrete is the phenomenon occurring crack in order to make up concrete too early, (loading) was used in the past at component, give concrete precompression in advance, namely in concrete tensile region, by artificial afterburning method, reinforcing bar is carried out stretch-draw, utilizes the retraction force of reinforcing bar, concrete in tension district is stressed in advance.The precharge pressure that this storage is got off, when component bears by external load generation pulling force, first offsets the precompression in concrete in tension zone, then increases with load, just make concrete in tension, which limits concrete elongation, delay or do not make crack occur.When carrying out stretch-draw, after the stretch-draw of tension rod reaches design force value, need, by the lock nut locking on tension rod, to make reinforcing bar keep stress always.Existing technology, is all that the nut check undertaken one by one by manpower is operated, wastes time and energy, affect efficiency.
Summary of the invention
To be solved in the utility model is the efficiency of the nut check improved in prestressed reinforcement stretching process, ensures uniformity and the stability of prestressed reinforcement stretch-draw force value.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of self-locking device of prestressed reinforcement stretch-draw, comprise stretch-draw beam, jack, supporting leg, link plate and tension rod, described jack has at least one, it is arranged in described stretch-draw beam, described jack top and described stretch-draw beam are fixed, the bottom of described jack is connected with one end of described supporting leg, the other end of described supporting leg stretches out outside the end plate of described stretch-draw beam one end, described link plate is arranged on inside described end plate, described link plate has several holes, described end plate also has several corresponding through holes, the end of described tension rod is stretched in described stretch-draw beam through the through hole on end plate and link plate and hole, the end of described tension rod is stuck on link plate, at least one synchronous motor is housed outside described end plate, described synchronous motor is provided with belt and belt stretcher, the position of described belt is corresponding with the locknut position on described tension rod.
Preferably, described supporting leg is " U " shape structure, and the bending place in the middle part of it is connected by the bottom of bolt with described jack, and each described jack is connected with 2 described supporting legs, described supporting leg can with the flexible of described jack flexible motion.
Preferably, the hole that described link plate is opened, is combined by a macropore and an aperture, the size of orifice size and holes transition portion, is greater than the bar portion size of described tension rod, but is less than the size of described tension rod end, macropore size, is greater than the size of described tension rod end.
Preferably, described link plate side is equipped with handle, and handle described in push-and-pull can make described link plate free shift.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, automation instead of manual operation, improves production efficiency, also ensure that uniformity and the stability of prestressed reinforcement stretch-draw force value simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of supporting leg in the present invention;
Fig. 3 is the structural representation of tension rod in the present invention;
Fig. 4 is the structural representation of link plate in the present invention;
Fig. 5 is the structural representation of end plates of the present invention.
In figure:
1, stretch-draw beam 2, jack 3, supporting leg 4, link plate
5, end plate 6, synchronous motor 7, belt 8, tension rod
9, locknut
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Set forth a lot of detail in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public specific embodiment.
Secondly; the utility model is described in detail in conjunction with schematic diagram; when describing the utility model embodiment in detail; for ease of explanation; the sectional drawing of indication device part structure can be disobeyed general ratio and be made partial enlargement; and described schematic diagram is example, it should not limit the scope of the utility model protection at this.In addition, the three-dimensional space of length, width and height should be comprised in actual fabrication.
As shown in Figures 1 to 5, the utility model comprises stretch-draw beam 1, jack 2, supporting leg 3, link plate 4 and tension rod 8, described jack 2 has 2, it is arranged in the inner chamber of described stretch-draw beam 1 side by side, described jack 2 top and described stretch-draw beam 1 are fixed, the bottom of described jack 2 is connected with one end of described supporting leg 3, the other end of described supporting leg 3 stretches out outside the end plate 5 of described stretch-draw beam 1 one end, offset with punching block in stretching process, described link plate 4 is arranged on inside described end plate 5, described link plate 4 has several holes, described end plate 5 also has several corresponding through holes, should ensure that tension rod 8 can pass in and out smoothly, the end of described tension rod 8 is stretched in described stretch-draw beam 1 through the through hole on end plate 5 and link plate 4 and hole, the end of described tension rod 8 is stuck on link plate 4, during work, the other end of described tension rod 8 is connected with prestressed reinforcement, outside described end plate 5, at least two synchronous motors 6 are housed, described synchronous motor 6 is provided with belt 7 and belt stretcher, the position of described belt 7 is corresponding with locknut 9 position on described tension rod 8.
The position of the locknut 9 on the corresponding tension rod 8 of described belt 7, during work, when after stretch-draw to design force value, belt 7 compresses locknut 9 and starts synchronous motor 6, is locked by the locknut 9 on multiple tension rod 8 by the effective friction between belt 7 and locknut 9 simultaneously.
Described supporting leg 3 is " U " shape structure, and the bending place in the middle part of it is connected by the bottom of bolt with described jack 2, and each described jack 2 is connected with 2 described supporting legs 3, described supporting leg 3 can with the flexible of described jack 2 flexible motion.
The hole that described link plate 4 is opened, combined by a macropore and an aperture, lageniform pass can be become, the size of orifice size and holes transition portion, be greater than the bar portion size of described tension rod 8, but be less than the size of described tension rod 8 end, macropore size, be greater than the size of described tension rod 8 end.
Described link plate 4 side is equipped with handle, and handle described in push-and-pull can make described link plate 4 free shift.
During use, first tension rod 8 is connected with prestressed reinforcement through punching block by screw thread or other modes, the other end of prestressed reinforcement fixes at the opposite side of punching block, the handle of push-and-pull link plate 4 makes the macropore on link plate 4 corresponding with the through hole on stretch-draw beam end plate 5, stretch-draw beam 1 shifted forward makes tension rod 8 end penetrate end plate 5, link plate 4, push-and-pull link plate 4 handle makes aperture lasso trick on link plate live tension rod 8 again, its end is fixed, then jack 2 is started, start stretch-draw, to be tensioned after force value, synchronous motor 6 starts, belt 7 starts the locknut 9 rubbed on tension rod 8, after locknut 9 on bar 8 to be tensioned is locked, belt 7 still can move to ensure that whole locknut 9 is locked smoothly, after whole locknut 9 is locked, stop synchronous motor 6, jack 2 puts an oil return, push-and-pull link plate 4 handle, make macropore on link plate 4 corresponding with stretch-draw beam 1 end plate 5 hole, stretch-draw beam 1 backward translation makes tension rod 8 from link plate 4, deviate from end plate 5, prestressed reinforcement stretch-draw completes.If two dimension prestressing reinforced bar stretching, can carry out simultaneously, also can carry out stretch-draw respectively.
Owing to adopting technique scheme, automation instead of manual operation, improves production efficiency, also ensure that uniformity and the stability of prestressed reinforcement stretch-draw force value simultaneously.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (4)
1. the self-locking device of a prestressed reinforcement stretch-draw, comprise stretch-draw beam (1), jack (2), supporting leg (3), link plate (4) and tension rod (8), it is characterized in that: described jack (2) has at least one, it is arranged in described stretch-draw beam (1), described jack (2) top and described stretch-draw beam (1) are fixed, the bottom of described jack (2) is connected with one end of described supporting leg (3), the other end of described supporting leg (3) stretches out the end plate (5) of described stretch-draw beam (1) one end outward, described link plate (4) is arranged on described end plate (5) inner side, (4) have several holes to described link plate, described end plate (5) also has several corresponding through holes, the end of described tension rod (8) is stretched in described stretch-draw beam (1) through the through hole on end plate (5) and link plate (4) and hole, the end of described tension rod (8) is stuck on link plate (4), at least two synchronous motors (6) are equipped with in described end plate (5) outside, described synchronous motor (6) is provided with belt (7) and belt stretcher, the position of described belt (7) is corresponding with locknut (9) position on described tension rod (8).
2. the self-locking device of prestressed reinforcement stretch-draw according to claim 1, it is characterized in that: described supporting leg (3) is " U " shape structure, bending place in the middle part of it is connected by the bottom of bolt with described jack (2), each described jack (2) is connected with 2 described supporting legs (3), described supporting leg (3) can with the flexible of described jack (2) flexible motion.
3. the self-locking device of prestressed reinforcement stretch-draw according to claim 1 and 2, it is characterized in that: the hole that described link plate (4) is opened, combined by a macropore and an aperture, the size of orifice size and holes transition portion, be greater than the bar portion size of described tension rod (8), but be less than the size of described tension rod (8) end, macropore size, be greater than the size of described tension rod (8) end.
4. the self-locking device of prestressed reinforcement stretch-draw according to claim 1 and 2, is characterized in that: described link plate (4) side is equipped with handle, and handle described in push-and-pull can make described link plate (4) free shift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482027.9U CN204899232U (en) | 2015-07-06 | 2015-07-06 | Self -lock device of prestressing steel stretch -draw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482027.9U CN204899232U (en) | 2015-07-06 | 2015-07-06 | Self -lock device of prestressing steel stretch -draw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899232U true CN204899232U (en) | 2015-12-23 |
Family
ID=54921419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482027.9U Withdrawn - After Issue CN204899232U (en) | 2015-07-06 | 2015-07-06 | Self -lock device of prestressing steel stretch -draw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204899232U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912336A (en) * | 2015-07-06 | 2015-09-16 | 天津银龙预应力材料股份有限公司 | Pre-stressed reinforcement tension self-lock device |
| CN107975241A (en) * | 2017-12-14 | 2018-05-01 | 泰州市春为强通用机械有限公司 | A kind of special reinforced bar stretching machine |
| CN108687951A (en) * | 2018-04-27 | 2018-10-23 | 天津银龙预应力材料股份有限公司 | A kind of locking equipment and in groups sleeper tensioning locking equipment |
-
2015
- 2015-07-06 CN CN201520482027.9U patent/CN204899232U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912336A (en) * | 2015-07-06 | 2015-09-16 | 天津银龙预应力材料股份有限公司 | Pre-stressed reinforcement tension self-lock device |
| CN107975241A (en) * | 2017-12-14 | 2018-05-01 | 泰州市春为强通用机械有限公司 | A kind of special reinforced bar stretching machine |
| CN108687951A (en) * | 2018-04-27 | 2018-10-23 | 天津银龙预应力材料股份有限公司 | A kind of locking equipment and in groups sleeper tensioning locking equipment |
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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 |
Granted publication date: 20151223 Effective date of abandoning: 20170405 |
|
| AV01 | Patent right actively abandoned |