CN103993743A - Device capable of adjusting pre-tightening pulling force - Google Patents
Device capable of adjusting pre-tightening pulling force Download PDFInfo
- Publication number
- CN103993743A CN103993743A CN201410212695.XA CN201410212695A CN103993743A CN 103993743 A CN103993743 A CN 103993743A CN 201410212695 A CN201410212695 A CN 201410212695A CN 103993743 A CN103993743 A CN 103993743A
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- steel bar
- silking
- clamping device
- tightening
- force
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- Basic Packing Technique (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a device capable of adjusting pre-tightening pulling force. The device comprises a steel bar pulling rod with obverse threads and a steel bar pulling rod with reverse threads. The steel bar pulling rod with the obverse threads and the steel bar pulling rod with the reverse threads are connected through a tightening device. The steel bar pulling rod with the obverse threads and the steel bar pulling rod with the reverse threads are connected with a clamping device. The tightening device carries out pre-tightening operation through a torque wrench. The device has the advantages of being simple in structure and convenient to use.
Description
Technical field
The present invention relates to a kind ofly adopt the reinforcing bar in construction work to make as main material, by it is simply processed, be equipped with the device that special-purpose tightening device has just formed adjustable prefastening force.
Background technology
Because rod member does not exist the problem of pressurized flexing when the tension, can give full play to the intensity of material, because of a little drag link bodies, to tie up in the work progress of construction work application very extensive, the main material of common engineering pull bar generally has wire rope and reinforcing bar at present, both respectively have advantage, but in order to bring into play better the requirement of the stressed or Reducing distortion of pull bar, generally all tackle it and carry out pretension, the pretension scheme adopting is at present 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 of specifically setting up in pull bar can only be surveyed by setting up device for measuring force, but device for measuring force is all set on every pull bar, increased on the one hand difficulty of construction, also greatly increased engineering cost simultaneously, and all also can the size on the pretightning force in pull bar in various degree produce either large or small impact in the process of pretension operation.
Summary of the invention
The object of the invention is, in order to overcome above deficiency, provides a kind of simple in structure, easily the device of the adjustable prefastening force of pretightning force size in adjusting yoke.
Object of the present invention is achieved through the following technical solutions: a kind of device of adjustable prefastening force, comprise with the steel bar rod of positive silking with the steel bar rod of anti-silking, with being connected by tightening device between the steel bar rod of positive silking and the steel bar rod with anti-silking, with the steel bar rod of positive silking, be all connected with clamping device with the steel bar rod with anti-silking, tightening device carries out pretension 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, on each clamping device handle, be equipped with stationary fixture, adjustable clamp, 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 standard, and material property is good, safety factor is large, can fully recycle, supporting with the tightening device production of can shaping, and can be repeatedly used;
pretension operation is without any requirement to the connection at pull bar two ends, and most suitable type of attachment is selected according to actual conditions in two ends, also it is not produced to any adverse effect, and applicable all application scenarios that need to adopt pull bar are applied widely;
3. pretension operation overall process does not exert an influence to the pretightning force in pull bar, and the size of pretightning force in fine adjustment pull bar, meets the designing requirement of pull bar as requested;
4. can by connect device for measuring force on reinforcing bar, to pull bar overall process stressing conditions, monitor easily.
5. by the appropriate design of jig on torque spanner, no matter be which kind of bar gauge, by changing the jig of different husband's specifications, all can directly read the pretightning force in pull bar.
accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of torque wrench;
Fig. 3 is for connecting the pull bar system schematic diagram of dynamometer;
Number in the figure: 1-clamps adjusting bolt, 12-spanner jig, 13-pretightning force display unit, 14-pretightning force display screen with steel bar rod, the 2-of positive silking with steel bar rod, 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, the 11-of anti-silking.
the specific embodiment:
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.
As Fig. 1 to Fig. 3 shows the specific embodiment of the device of a kind of adjustable prefastening force of the present invention, comprise with the steel bar rod 1 of positive silking with the steel bar rod 2 of anti-silking, with the steel bar rod 1 of positive silking with being connected by tightening device 3 between the steel bar rod 2 of anti-silking, with the steel bar rod 1 of positive silking, be all connected with clamping device with the steel bar rod 2 with anti-silking, tightening device 3 carries out pretension 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, on each clamping device handle 7, be equipped with stationary fixture 9, adjustable clamp 10, the bottom of each clamping device handle 7 is all connected with and clamps 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.While in use needing all power to measure, 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 it is simply processed, being equipped with that tightening device 3 just formed can pretension pull bar.Then being equipped with clamping device and torque spanner 6 can complete and tighten up operation, while tightening up operation, with clamping tool, fix the reinforcing bar at tightening device two ends, then adopt torque spanner to carry out pretension operation, during operation, can directly in special-purpose torque spanner, demonstrate pulling force in pull bar size according to the size of torsion, can be according to the actual requirement size of pretightning force in adjusting yoke easily.Clamping tool can not affect the pretightning force in pull bar in the overall process of operation, and owing to having adopted Special clamping device to clamp the reinforcing bar at two ends, therefore when carrying out pretension operation, do not need to consider the type of attachment at pull bar two ends, can to the connection at pull bar two ends, not have a negative impact because of pretension operation simultaneously yet.This just makes the applicable all use occasions that need to adopt pull bar of this device, by connect device for measuring force on reinforcing bar, also can monitor pull bar overall process stressing conditions.In torque spanner, the relation of torsion and pretightning force is calculated according to this drag link tightener and determines after repeated detection, adopt spanner special mould clamp to make that operation is very easy, can change according to bar gauge difference, by well-designed jig, no matter be the reinforcing bar of what specification, all can directly 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 standard, and material property is good, safety factor is large, can fully recycle, supporting with the tightening device production of can shaping, and can be repeatedly used; Pretension operation is without any requirement to the connection at pull bar two ends, and most suitable type of attachment is selected according to actual conditions in two ends, also it is not produced to any adverse effect, and applicable all application scenarios that need to adopt pull bar are applied widely; Pretension operation overall process does not exert an influence to the pretightning force in pull bar, and the size of pretightning force in fine adjustment pull bar, meets the designing requirement of pull bar as requested; Can by connect device for measuring force on reinforcing bar, to pull bar overall process stressing conditions, monitor easily.By the appropriate design of jig on torque spanner, no matter be which kind of bar gauge, by changing the jig of different husband's specifications, all can directly read the pretightning force in pull bar.
Claims (4)
1. the device of an adjustable prefastening force, comprise steel bar rod (1) with positive silking and with the steel bar rod (2) of anti-silking, it is characterized in that: between the steel bar rod (1) of the positive silking of described band and the described steel bar rod with anti-silking (2), by tightening device (3), be connected, the steel bar rod (1) of the positive silking of described band is all connected with clamping device with the described steel bar rod with anti-silking (2), described tightening device (3) carries out pretension operation by torque wrench (6), and described torque wrench (6) is stuck in the draw-in groove of described tightening device (3).
2. a kind of device 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), described in each, on clamping device handle (7), be equipped with stationary fixture (9), adjustable clamp (10), described in each, the bottom of clamping device handle (7) is all connected with and clamps adjusting bolt (11).
3. a kind of device 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. a kind of device of adjustable prefastening force according to claim 1, is characterized in that: described tightening device (3) is connected with device for measuring force (4), and 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 true CN103993743A (en) | 2014-08-20 |
| CN103993743B CN103993743B (en) | 2015-11-11 |
Family
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103993743B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401197A (en) * | 2016-10-28 | 2017-02-15 | 东南大学 | Existing cable force fine adjusting device |
| CN106567546A (en) * | 2016-10-26 | 2017-04-19 | 东南大学 | Labor-saving type cable force 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103993743B (en) | 2015-11-11 |
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