CN103993743B - A kind of device of adjustable prefastening force - Google Patents
A kind of device of adjustable prefastening force Download PDFInfo
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- CN103993743B CN103993743B CN201410212695.XA CN201410212695A CN103993743B CN 103993743 B CN103993743 B CN 103993743B CN 201410212695 A CN201410212695 A CN 201410212695A CN 103993743 B CN103993743 B CN 103993743B
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- silking
- steel bar
- bar rod
- clamping device
- force
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The present invention relates to a kind of device of adjustable prefastening force, comprise the steel bar rod of steel bar rod and the anti-silking of band being with positive silking, be connected by tightening device between steel bar rod with positive silking and the steel bar rod with anti-silking, steel bar rod with positive silking is all connected with clamping device with the steel bar rod of the anti-silking of band, and tightening device carries out pretensioning operation by torque wrench.It is simple that the present invention has structure, advantage easy to use.
Description
Technical field
The present invention relates to and a kind ofly adopt the reinforcing bar in construction work to make as main material, by simply processing it, being equipped with the device that special tightening device just defines adjustable prefastening force.
Background technology
Because rod member does not exist the problem of compressive buckling when tension, the intensity of material can be given full play to, apply widely because a little drag link body ties up in the work progress of construction work, the main material of current common engineering pull bar generally has wire rope and reinforcing bar, both respectively have advantage, but in order to play the requirement of the stressed of pull bar or Reducing distortion better, generally all tackling it carries out pretension, the pretension scheme of current employing is a lot, but all to carry out specific design according to the type of attachment at pull bar two ends, and generally can only reach the object of pretension, the size of the pretightning force specifically set up in pull bar can only be surveyed by setting up device for measuring force, but on every root pull bar, all device for measuring force is set, add difficulty of construction on the one hand, also considerably increase engineering cost simultaneously, and all also either large or small impact can be produced on the size of the pretightning force in pull bar in various degree in the process of pretensioning operation.
Summary of the invention
The object of the invention is to overcome above deficiency, providing a kind of structure simple, can the device of the adjustable prefastening force of pretightning force size in adjusting yoke easily.
Object of the present invention is achieved through the following technical solutions: a kind of device of adjustable prefastening force, comprise the steel bar rod of steel bar rod and the anti-silking of band being with positive silking, be connected by tightening device between steel bar rod with positive silking and the steel bar rod with anti-silking, steel bar rod with positive silking is all connected with clamping device with the steel bar rod of the anti-silking of band, tightening device carries out pretensioning operation by torque wrench, and torque wrench is stuck in the draw-in groove of tightening device.
Further improvement of the present invention is: described clamping device comprises two clamping device handles, the upper end of two clamping device handles is connected by cross bar, each clamping device handle is equipped with stationary fixture, adjustable clamp, and the bottom of each clamping device handle is all connected with clamping adjusting bolt.
Further improvement of the present invention is: described torque wrench comprises spanner jig, and spanner jig is connected with pretightning force display unit, and pretightning force display unit is provided with pretightning force display screen.
Further improvement of the present invention is: described tightening device is connected with device for measuring force, and device for measuring force is connected with dynamometry instrument.
The present invention compared with prior art has the following advantages:
the main material of pull bar is reinforcing bar, can gather materials on the spot, calculate value and facilitate specification, material property is good, safety factor is large, can fully recycle, and supporting tightening device can be shaped production, can repeatedly use;
the connection of pretensioning operation to pull bar two ends is without any requirement, and most suitable type of attachment is selected according to actual conditions in two ends, does not also produce any adverse effect to it, applicable all application scenarios needing employing pull bar, applied widely;
3. pretensioning operation overall process does not have an impact to the pretightning force in pull bar, can the size of pretightning force in fine adjustment pull bar as requested, meets the designing requirement of pull bar;
4. can monitor pull bar overall process stressing conditions conveniently by connecting on reinforcing bar device for measuring force.
5. by the appropriate design of jig on torque spanner, no matter being which kind of bar gauge, by changing the jig of different husband's specification, all directly can reading the pretightning force in pull bar.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of torque wrench;
Fig. 3 is the pull bar system schematic diagram connecting dynamometer;
The steel bar rod of number in the figure: 1-with positive silking, the steel bar rod of 2-with anti-silking, 3-tightening device, 4-device for measuring force, 5-dynamometry instrument, 6-torque wrench, 7-clamping device handle, 8-cross bar, 9-stationary fixture, 10-adjustable clamp, 11-clamp adjusting bolt, 12-spanner jig, 13-pretightning force display unit, 14-pretightning force display screen.
detailed description of the invention:
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only for explaining the present invention, does not form limiting the scope of the present invention.
The detailed description of the invention of the device of a kind of adjustable prefastening force of the present invention is shown as Fig. 1 to Fig. 3, comprise the steel bar rod 2 of the steel bar rod 1 and anti-silking of band being with positive silking, be connected by tightening device 3 between steel bar rod 1 with positive silking and the steel bar rod with anti-silking 2, steel bar rod 1 with positive silking is all connected with clamping device with the steel bar rod 2 of the anti-silking of band, tightening device 3 carries out pretensioning operation by torque wrench 6, further improvement of the present invention is: clamping device comprises two clamping device handles 7, the upper end of two clamping device handles 7 is connected by cross bar 8, each clamping device handle 7 is equipped with stationary fixture 9, adjustable clamp 10, the bottom of each clamping device handle 7 is all connected with clamping adjusting bolt 11, torque wrench 6 comprises spanner jig 12, spanner jig 12 is connected with pretightning force display unit 13, pretightning force display unit 13 is provided with pretightning force display screen 14.When in use needing to measure all power, tightening device 3 is connected with device for measuring force 4, and device for measuring force 4 is connected with dynamometry instrument 5.
The present invention adopts the reinforcing bar in construction work to make as main material, and by simply processing it, being equipped with that tightening device 3 just defines can pretension pull bar.Then be equipped with clamping device and torque spanner 6 can complete and tighten up operation, when tightening up operation, the reinforcing bar at tightening device two ends is fixed with clamping tool, then torque spanner is adopted to carry out pretensioning operation, directly can demonstrate the pulling force size in pull bar in special torque spanner according to the size of torsion during operation, can according to the size of pretightning force in actual requirement easily adjusting yoke.Clamping tool all can not affect the pretightning force in pull bar in the overall process of operation, and owing to have employed the reinforcing bar at Special clamping device clamping two ends, therefore not needing the type of attachment considering pull bar two ends when carrying out pretensioning operation, can not have a negative impact because of the connection of pretensioning operation to pull bar two ends simultaneously yet.This just makes the applicable all use occasions needing to adopt pull bar of this device, also can monitor pull bar overall process stressing conditions by connecting device for measuring force on reinforcing bar.In torque spanner, the relation of torsion and pretightning force carries out calculating and determining after repeated detection according to this drag link tightener, operation is very easy to adopt spanner special mould clamp to make, can change according to bar gauge difference, by well-designed jig, be no matter the reinforcing bar of what specification, all directly can read pretightning force by torque spanner.
The main material of pull bar of the present invention is reinforcing bar, can gather materials on the spot, calculate value and facilitate specification, material property is good, safety factor is large, can fully recycle, and supporting tightening device can be shaped production, can repeatedly use; The connection of pretensioning operation to pull bar two ends is without any requirement, and most suitable type of attachment is selected according to actual conditions in two ends, does not also produce any adverse effect to it, applicable all application scenarios needing employing pull bar, applied widely; Pretensioning operation overall process does not have an impact to the pretightning force in pull bar, can the size of pretightning force in fine adjustment pull bar as requested, meets the designing requirement of pull bar; Can monitor pull bar overall process stressing conditions conveniently by connecting on reinforcing bar device for measuring force.By the appropriate design of jig on torque spanner, no matter being which kind of bar gauge, by changing the jig of different husband's specification, all directly can reading the pretightning force in pull bar.
Claims (4)
1. the device of an adjustable prefastening force, comprise the steel bar rod (2) of steel bar rod (1) and the anti-silking of band being with positive silking, it is characterized in that: be connected by tightening device (3) between the steel bar rod (1) of the positive silking of described band and the steel bar rod (2) of the anti-silking of described band, the steel bar rod (1) of the positive silking of described band is all connected with clamping device with the steel bar rod (2) of the anti-silking of described band, described tightening device (3) carries out pretensioning operation by torque wrench (6), and described torque wrench (6) is stuck in the draw-in groove of described tightening device (3).
2. the device of a kind of adjustable prefastening force according to claim 1, it is characterized in that: described clamping device comprises two clamping device handles (7), the upper end of two described clamping device handles (7) is connected by cross bar (8), each described clamping device handle (7) is equipped with stationary fixture (9), adjustable clamp (10), and the bottom of each described clamping device handle (7) is all connected with clamping adjusting bolt (11).
3. the device of a kind of adjustable prefastening force according to claim 1, it is characterized in that: described torque wrench (6) comprises spanner jig (12), described spanner jig (12) is connected with pretightning force display unit (13), and described pretightning force display unit (13) is provided with pretightning force display screen (14).
4. the device of a kind of adjustable prefastening force according to claim 1, it is characterized in that: described tightening device (3) is connected with device for measuring force (4), described device for measuring force (4) is connected with dynamometry instrument (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212695.XA CN103993743B (en) | 2014-05-20 | 2014-05-20 | A kind of device of adjustable prefastening force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212695.XA CN103993743B (en) | 2014-05-20 | 2014-05-20 | A kind of device of adjustable prefastening force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103993743A CN103993743A (en) | 2014-08-20 |
| CN103993743B true CN103993743B (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410212695.XA Active CN103993743B (en) | 2014-05-20 | 2014-05-20 | A kind of device of adjustable prefastening force |
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| Country | Link |
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| CN (1) | CN103993743B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567546A (en) * | 2016-10-26 | 2017-04-19 | 东南大学 | Labor-saving type cable force adjusting device |
| CN106401197A (en) * | 2016-10-28 | 2017-02-15 | 东南大学 | Existing cable force fine adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0827896A (en) * | 1994-07-14 | 1996-01-30 | Kawatetsu Steel Prod Corp | Internode mounting structure of brace to introduce pretension |
| CN2529853Y (en) * | 2002-04-08 | 2003-01-08 | 郭正兴 | Drag link tightener |
| CN101831871A (en) * | 2010-03-16 | 2010-09-15 | 中交二航局第二工程有限公司 | Adjustable wind cable and installing method thereof |
| GB2486312A (en) * | 2010-12-03 | 2012-06-13 | Tra Tzschler Gmbh & Co Kg | Carding machine carrier element with tensioning element |
| CN203905505U (en) * | 2014-05-20 | 2014-10-29 | 南通市建筑科学研究院有限公司 | Device with adjustable pre-tightening force |
-
2014
- 2014-05-20 CN CN201410212695.XA patent/CN103993743B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0827896A (en) * | 1994-07-14 | 1996-01-30 | Kawatetsu Steel Prod Corp | Internode mounting structure of brace to introduce pretension |
| CN2529853Y (en) * | 2002-04-08 | 2003-01-08 | 郭正兴 | Drag link tightener |
| CN101831871A (en) * | 2010-03-16 | 2010-09-15 | 中交二航局第二工程有限公司 | Adjustable wind cable and installing method thereof |
| GB2486312A (en) * | 2010-12-03 | 2012-06-13 | Tra Tzschler Gmbh & Co Kg | Carding machine carrier element with tensioning element |
| CN203905505U (en) * | 2014-05-20 | 2014-10-29 | 南通市建筑科学研究院有限公司 | Device with adjustable pre-tightening force |
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|---|---|
| CN103993743A (en) | 2014-08-20 |
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