CN204609319U - A kind of large-tonnage tensioning construction adjusting device - Google Patents
A kind of large-tonnage tensioning construction adjusting device Download PDFInfo
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- CN204609319U CN204609319U CN201520236534.4U CN201520236534U CN204609319U CN 204609319 U CN204609319 U CN 204609319U CN 201520236534 U CN201520236534 U CN 201520236534U CN 204609319 U CN204609319 U CN 204609319U
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- conical socket
- rod
- adjusting screw
- surface plate
- tapered cup
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Abstract
A kind of large-tonnage tensioning construction adjusting device, comprise bridge supporting leg, surface plate and upper flat plate, supporting leg is fixed with surface plate, surface plate is provided with multiple adjusting screw(rod), adjusting screw(rod) is threaded and is provided with tapered cup nut, be provided with upper flat plate above surface plate, upper flat plate is provided with the second conical socket, surface plate is provided with the first conical socket, and tapered cup nut is fixed in the space between the first conical socket and the second conical socket.By placing the tensioning equipment that can regulate its levelness on anchor plate, then on this device, jack is placed, when anchor plate tilts, by the rotation of four adjusting screw(rod)s, the tapered cup nut on adjusting screw(rod) is driven to move in conical socket, the levelness realizing the upper flat plate of diverse location regulates, and improves efficiency of construction.The cracking of the box girder web that the stretch-draw intensity caused under avoiding anchor plate heeling condition does not reach designing requirement and causes.
Description
Technical field
The utility model relates to tensioning construction field, particularly a kind of large-tonnage tensioning construction adjusting device.
Background technology
In concrete box web, vertical prestressing bar is set, to resist web shear stress and principal tensile stress, avoids the cracking of box girder web, in existing work progress, the inclined crack phenomenon still ubiquity of box girder web.And its main cause is owing to failing to reach design strength during vertical prestressing bar stretch-draw, and anchor plate run-off the straight is the principal element causing stretch-draw intensity not reach designing requirement.
In actual work progress, anchor plate run-off the straight situation is difficult to avoid, when site operation personnel carry out stretch-draw to presstressed reinforcing steel, be all artificial under nut backing plate, add pading plate, or the method adding pading plate under jack base supporting leg carry out the adjustment of stretch-draw face levelness.Owing to needing the prestressed reinforcement quantity of stretch-draw more and angular dimension that is anchor plate run-off the straight is different, carrying out adjustment by the method adding pading plate will certainly affect engineering construction efficiency, wastes time and energy.Meanwhile, the method adding pading plate also can not ensure the continuously adjustabe of stretch-draw face levelness, also can cause to a certain extent during tension of prestressed tendon and not reach design strength requirement.At present, though there are some levelling devices in vertical prestressing bar stretching construction, serve certain effect, but when large-tonnage tension of prestressed tendon, these levelling devices cannot carry out the leveling in stretch-draw face.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of large-tonnage tensioning construction adjusting device, it is simple and compact for structure, the prestressed stretch-draw loss can tilting cause by regulating the levelness in stretch-draw face to reduce anchor plate, avoids the box girder web cracking that stretch-draw intensity does not reach design and generation.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of large-tonnage tensioning construction adjusting device, comprise bridge supporting leg, surface plate and upper flat plate, supporting leg is fixed with surface plate, surface plate is provided with multiple adjusting screw(rod), adjusting screw(rod) is threaded and is provided with tapered cup nut, upper flat plate is provided with above surface plate, upper flat plate is provided with the second conical socket, surface plate is provided with the first conical socket, and tapered cup nut is fixed in the space between the first conical socket and the second conical socket.
In preferred scheme, be arranged with multiple otic placode outside described surface plate, otic placode is provided with U-shaped groove, in order to secured adjusted screw end head.
In preferred scheme, the U-shaped groove on described otic placode is two-layer, and the U-shaped groove inside approaching device is larger than outside U recess width.
In preferred scheme, described surface plate center is provided with boss, and outer wall of boss is close in one end of adjusting screw(rod).
In preferred scheme, be provided with goring push spring between described adjusting screw(rod) and tapered cup nut, goring push spring width is in otic placode between two-layer U-shaped recess width, and goring push spring one end is connected with tapered cup nut, and the other end is fixed in the larger U-shaped groove of otic placode.
In preferred scheme, the first described conical socket and the second conical socket both sides are plane, and bottom surface is taper, and tapering is identical with tapered cup nut.
In preferred scheme, the first described conical socket and the bottom surface of the second conical socket downward-sloping to otic placode direction by boss, the first conical socket and the second conical socket basal spacing remain identical with tapered cup nut conical surface spacing.
In preferred scheme, described surface plate is fixed with multiple tension spring, upper flat plate is provided with the shackle corresponding with tension spring, and tension spring one end is fixedly connected with surface plate, and the other end is connected with upper flat plate by shackle.
In preferred scheme, described adjusting screw(rod) is four, and the angle between adjacent adjusting screw(rod) is 90 °.
In preferred scheme, described tension spring is four, and the angle between adjacent tension spring is 90 °, and each tension spring is arranged between adjacent two adjusting screw(rod)s.
In preferred scheme, before carrying out levelness adjustment, tapered cup nut initial position be all positioned at the first conical socket and second conical socket inside termination.
During initial installation, the other end that adjusting screw(rod) screw into tapered cup nut does not spill screw head, and screw head and this end face of tapered cup nut are close to boss.
A kind of large-tonnage tensioning construction adjusting device that the utility model provides, by placing the tensioning equipment that can regulate its levelness on anchor plate, then on this device, jack is placed, when anchor plate tilts, by the rotation of four adjusting screw(rod)s, drive the tapered cup nut on adjusting screw(rod) to move in conical socket, the levelness realizing the upper flat plate of diverse location regulates, instead of the mode of cushioning leveling steel plate, improve efficiency of construction.The cracking of the box girder web that the stretch-draw intensity caused under simultaneously avoiding anchor plate heeling condition does not reach designing requirement and causes.This apparatus structure is compact, simple to operate, can carry out leveling for the angle of inclination that anchor plate is different, and can be applied in the construction of large-tonnage tension of prestressed tendon.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is regulating system schematic diagram of the present utility model.Eliminate the identical structure of its excess-three position.
Fig. 3 is upper flat plate structural representation of the present utility model.
Fig. 4 is otic placode structural representation of the present utility model.
In Fig. 1-2: supporting leg 1, upper flat plate 2, tension spring 3, tapered cup nut 4, adjusting screw(rod) 5, goring push spring 6, the first conical socket 7, otic placode 8, the second conical socket 9, shackle 10, boss 11, surface plate 12.
Detailed description of the invention
As shown in the figure: a kind of large-tonnage tensioning construction adjusting device, comprise bridge supporting leg 1, surface plate 12 and upper flat plate 2, supporting leg 1 is fixed with surface plate 12, surface plate 12 is provided with multiple adjusting screw(rod) 5, adjusting screw(rod) 5 is threaded and is provided with tapered cup nut 4, be provided with upper flat plate 2 above surface plate 12, upper flat plate 2 is provided with the second conical socket 9, surface plate 12 is provided with the first conical socket 7, and tapered cup nut 4 is fixed in the space between the first conical socket 7 and the second conical socket 9.By adopting said structure, utilizing adjusting screw(rod) to drive the movement of tapered cup nut in conical socket, carrying out the Level-adjusting of upper flat plate, to avoid under anchor plate heeling condition, cause stretch-draw intensity not reach the situation of designing requirement.
In preferred scheme, be arranged with multiple otic placode 8 outside described surface plate 12, otic placode 8 is provided with U-shaped groove, in order to secured adjusted screw rod 5 termination.
In preferred scheme, the U-shaped groove on described otic placode 8 is two-layer, and the U-shaped groove inside approaching device is larger than outside U recess width.
In preferred scheme, described surface plate 12 center is provided with boss 11, and boss 11 outer wall is close in one end of adjusting screw(rod) 5.Set boss, can limit the position of adjusting screw(rod), and when boss is close in adjusting screw(rod) termination, continuing to rotate adjusting screw(rod) can not displacement, and now tapered cup nut is at conical socket intrinsic displacement, reaches the object regulating upper flat plate levelness.
In preferred scheme, goring push spring 6 is provided with between described adjusting screw(rod) 5 and tapered cup nut 4, goring push spring 6 width is in otic placode 8 between two-layer U-shaped recess width, and goring push spring 6 one end is connected with tapered cup nut 4, and the other end is fixed in the larger U-shaped groove of otic placode 8.U-shaped groove is divided into two-layer, adds the elastic telescopic space of goring push spring.
In preferred scheme, the first described conical socket 7 and the second conical socket 9 both sides are plane, and bottom surface is taper, and tapering is identical with tapered cup nut 4.The plane of both sides can avoid tapered cup nut can not rotate in conical socket, and bottom surface tapering is identical with tapered cup nut, then ensure that and fit tightly between tapered cup nut and conical socket.
In preferred scheme, the first described conical socket 7 and the bottom surface of the second conical socket 9 downward-sloping to otic placode 8 direction by boss 11, the first conical socket 7 and the second conical socket 9 basal spacing remain identical with tapered cup nut 4 conical surface spacing.By adopting said structure, when tapered cup nut is moved towards otic placode direction by lug boss position, tapered cup nut in the vertical direction can move down gradually, realizes the leveling of upper flat plate with this.Meanwhile, the first conical socket and the second conical socket basal spacing remain identical with tapered cup nut conical surface spacing, then make tapered cup nut to fit with two groove floor all the time, avoid tapered cup nut movable situation causing upper flat plate instability between groove.
In preferred scheme, described surface plate 12 is fixed with multiple tension spring 3, upper flat plate 2 is provided with the shackle 10 corresponding with tension spring 3, and tension spring 3 one end is fixedly connected with surface plate 12, and the other end is connected with upper flat plate 2 by shackle 10.The tension spring arranged, can make upper flat plate fit with surface plate all the time.
In preferred scheme, described adjusting screw(rod) 5 is four, and the angle between adjacent adjusting screw(rod) 5 is 90 °.Adjusting screw(rod) adopts four positions and mutual vertical distribution, and the levelness can carrying out any angular position regulates.
In preferred scheme, described tension spring 3 is four, and the angle between adjacent tension spring 3 is 90 °, and each tension spring 3 is arranged between adjacent two adjusting screw(rod)s 5.Four tension springs of even setting, ensure that upper flat plate and each position of surface plate are all in fit-state.
In preferred scheme, before carrying out levelness adjustment, tapered cup nut initial position be all positioned at the first conical socket and second conical socket inside termination.
During initial installation, the other end that adjusting screw(rod) screw into tapered cup nut does not spill screw head, and screw head and this end face of tapered cup nut are close to boss.
Specific embodiment is as follows:
By rotating adjusting screw(rod) with spanner, because tapered cup nut is under the pressure effect of upper flat plate, in stretch-draw base, two side planes of conical socket stop it that adjusting screw(rod) cannot be followed to rotate together, after the top of adjusting screw(rod) contacts with the step cutting pattern of stretch-draw base, adjusting screw(rod) just cannot continue precession, force tapered cup nut so gradually away from the step cutting pattern of stretch-draw base, its conical socket large end face towards stretch-draw base is moved, center reduces gradually, the upper flat plate shelved on tapered cup nut also can rotate gradually, by constantly rotating adjusting screw(rod), until the upper surface level of upper flat plate, the stretch-draw of such box girder web vertical prestressing just can accomplish the thoughts of returning home, eliminate because the inclination of anchor plate causes the loss of prestressed stretch-draw.
Claims (10)
1. a large-tonnage tensioning construction adjusting device, comprise bridge supporting leg (1), surface plate (12) and upper flat plate (2), it is characterized in that: supporting leg (1) is fixed with surface plate (12), surface plate (12) is provided with multiple adjusting screw(rod) (5), adjusting screw(rod) (5) is threaded and is provided with tapered cup nut (4), surface plate (12) top is provided with upper flat plate (2), upper flat plate (2) is provided with the second conical socket (9), surface plate (12) is provided with the first conical socket (7), tapered cup nut (4) is fixed in the space between the first conical socket (7) and the second conical socket (9).
2. a kind of large-tonnage tensioning construction adjusting device according to claim 1, is characterized in that: be arranged with multiple otic placode (8) outside described surface plate (12), otic placode (8) is provided with U-shaped groove, in order to secured adjusted screw rod (5) termination.
3. a kind of large-tonnage tensioning construction adjusting device according to claim 2, it is characterized in that: the U-shaped groove on described otic placode (8) is two-layer, the U-shaped groove inside approaching device is larger than outside U recess width.
4. a kind of large-tonnage tensioning construction adjusting device according to claim 1, it is characterized in that: described surface plate (12) center is provided with boss (11), boss (11) outer wall is close in one end of adjusting screw(rod) (5).
5. a kind of large-tonnage tensioning construction adjusting device according to claim 1, it is characterized in that: between described adjusting screw(rod) (5) and tapered cup nut (4), be provided with goring push spring (6), goring push spring (6) width is positioned between the two-layer U-shaped recess width of otic placode (8), goring push spring (6) one end is connected with tapered cup nut (4), and the other end is fixed in the larger U-shaped groove of otic placode (8).
6. a kind of large-tonnage tensioning construction adjusting device according to claim 1, is characterized in that: described the first conical socket (7) and the second conical socket (9) both sides are plane, and bottom surface is taper, and tapering is identical with tapered cup nut (4).
7. a kind of large-tonnage tensioning construction adjusting device according to claim 6, it is characterized in that: described the first conical socket (7) is downward-sloping to otic placode (8) direction by boss (11) with the bottom surface of the second conical socket (9), and the first conical socket (7) and the second conical socket (9) basal spacing remain identical with tapered cup nut (4) conical surface spacing.
8. a kind of large-tonnage tensioning construction adjusting device according to claim 1, it is characterized in that: described surface plate (12) is fixed with multiple tension spring (3), upper flat plate (2) is provided with the shackle (10) corresponding with tension spring (3), tension spring (3) one end is fixedly connected with surface plate (12), and the other end is connected with upper flat plate (2) by shackle (10).
9. a kind of large-tonnage tensioning construction adjusting device according to claim 1, is characterized in that: described adjusting screw(rod) (5) is four, and the angle between adjacent adjusting screw(rod) (5) is 90 °.
10. a kind of large-tonnage tensioning construction adjusting device according to claim 7, it is characterized in that: described tension spring (3) is four, angle between adjacent tension spring (3) is 90 °, and each tension spring (3) is arranged between adjacent two adjusting screw(rod)s (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236534.4U CN204609319U (en) | 2015-04-20 | 2015-04-20 | A kind of large-tonnage tensioning construction adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236534.4U CN204609319U (en) | 2015-04-20 | 2015-04-20 | A kind of large-tonnage tensioning construction adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204609319U true CN204609319U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520236534.4U Expired - Fee Related CN204609319U (en) | 2015-04-20 | 2015-04-20 | A kind of large-tonnage tensioning construction adjusting device |
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| CN (1) | CN204609319U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775624A (en) * | 2015-04-20 | 2015-07-15 | 葛洲坝集团第五工程有限公司 | Large-tonnage prestressed tension construction adjusting device |
| CN105606081A (en) * | 2016-03-22 | 2016-05-25 | 陈雅磁 | Portable mobile fast stable type standard light beam instrument |
| CN107386689A (en) * | 2017-07-31 | 2017-11-24 | 中国冶集团有限公司 | The high pier stud constructor row cat ladder assembled sustaining wall fixing device of rectangle and construction method |
| CN108411788A (en) * | 2018-04-23 | 2018-08-17 | 黄宇松 | A kind of base angle structure that bridge construction test truss auxiliary is built |
-
2015
- 2015-04-20 CN CN201520236534.4U patent/CN204609319U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775624A (en) * | 2015-04-20 | 2015-07-15 | 葛洲坝集团第五工程有限公司 | Large-tonnage prestressed tension construction adjusting device |
| CN104775624B (en) * | 2015-04-20 | 2016-11-23 | 中国葛洲坝集团第五工程有限公司 | A kind of large-tonnage tensioning construction adjusting means |
| CN105606081A (en) * | 2016-03-22 | 2016-05-25 | 陈雅磁 | Portable mobile fast stable type standard light beam instrument |
| CN107386689A (en) * | 2017-07-31 | 2017-11-24 | 中国冶集团有限公司 | The high pier stud constructor row cat ladder assembled sustaining wall fixing device of rectangle and construction method |
| CN108411788A (en) * | 2018-04-23 | 2018-08-17 | 黄宇松 | A kind of base angle structure that bridge construction test truss auxiliary is built |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20170420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |