CN207248624U - A kind of bolt tension measuring instrument - Google Patents
A kind of bolt tension measuring instrument Download PDFInfo
- Publication number
- CN207248624U CN207248624U CN201720938596.9U CN201720938596U CN207248624U CN 207248624 U CN207248624 U CN 207248624U CN 201720938596 U CN201720938596 U CN 201720938596U CN 207248624 U CN207248624 U CN 207248624U
- Authority
- CN
- China
- Prior art keywords
- bolt
- bascule
- worm
- fixed structure
- measuring instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of bolt tension measuring instrument of the utility model, the bascule being nested in including fixed structure and part in fixed structure, and the measuring instrument of pulling force between fixed structure and bascule is measured, the fixed structure is connected with bascule by Worm and worm-wheel gearing；The bolt fixing hole being provided through on the fixed structure and bascule；The eccentric wheel position limiting structure of adjustment aperture size is provided with the bolt fixing hole.The measuring instrument can calculate and judge whether bolt reaches yield strength after producing plastic deformation, and the fatigue wear for controlling bolt has important meaning；It ensure that the service life practical function of bolt is good, reach the Expected Results of core main pump installation.
Description
Technical field
Bolt fields of measurement is the utility model is related to, specifically a kind of bolt tension measuring instrument.
Background technology
Bolt is main reactor pump core level-one component, in the state of main pump normal operation, reaction environment in pump case compared with
To be extreme, therefore, to assure that the pretightning force of bolt is identical, therefore stretching for bolt and deformation measure, and common process is pair
Bolt is grouped stretching, and finds that bolt deflection is different after common process stretches, and stretches, can be made again after dismounting
Into bolt fatigue wear, measuring method is single, inefficiency, and not enough precisely, if several bolts measure at the same time, needs
More individuals are wanted to be carried out at the same time, it is impossible to achieve the purpose that constantly monitoring bolt deformation.Can not judge bolt is after producing plastic deformation
It is no to reach yield strength, the fatigue wear of bolt can not be controlled, according to case above, it would be highly desirable to a kind of rational stretching and deformation
Measuring instrument, to meet the requirement of bolt.
Utility model content
The utility model proposes purpose to be to provide a kind of bolt tension measuring instrument.
To achieve the above object, a kind of bolt tension measuring instrument described in the utility model, including fixed structure and part it is embedding
The measuring instrument of pulling force, the fixation between the bascule being sleeved in fixed structure, and measurement fixed structure and bascule
Structure is connected with bascule by Worm and worm-wheel gearing；The spiral shell being provided through on the fixed structure and bascule
Bolt mounting hole；Worm gear is fixed with the bascule；The worm gear is fixed on bascule by Worm Bearing, described solid
Determine to be fixed with the worm screw connected by worm bearing in structure；The worm and wheel engagement, the worm bearing connecting worm
Motion structure；The eccentric wheel position limiting structure of adjustment aperture size is provided with the bolt fixing hole.
The bolt fixing hole includes the first bolt fixing hole and the second bolt fixing hole；First bolt fixing hole is set
It is placed on fixed structure；Second bolt fixing hole is arranged on bascule, first bolt fixing hole and the second spiral shell
Bolt mounting hole is connected.
One kind or combination that the motion structure of the worm screw is hydraulic drive motor, air pressure transmission motivation, point are hit.
The gear on worm diameter is less than worm-gear toothing diameter.
The jaw of the fixed structure is recessed for the flat pliers of serration；Bascule one end is flat pliers mouth；The other end is with thin
The recessed jaw of tooth.
The regular jaw 3 and moving jaw 4 have heating function；Fixed structure 1 and bascule 2 have heating work(
Energy.
The eccentric wheel position limiting structure at least two set in the bolt fixing hole.
A kind of bolt tension measuring instrument described in the utility model, its advantage are：The measuring instrument passes through worm and gear
Structure measurement bolt tension and deformation, can be calculated by the measurement to bolt deformation and judge that bolt is after producing plastic deformation
No to reach yield strength, the fatigue wear for controlling bolt has important meaning；It ensure that the practical effect of service life of bolt
Fruit is good, reaches the Expected Results of core main pump installation.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model embodiment；
In figure：1- fixed structures, 2- bascules, 3- regular jaws, 4- moving jaws, 5- Worm Bearings, 6- worm screws, 7-
Worm gear, 8- bolts.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of bolt tension measuring instrument described in the utility model, including fixed structure 1 and part are nested in
The measuring instrument of pulling force, its feature exist between bascule 2 in fixed structure 1, and measurement fixed structure 1 and bascule 2
In：The fixed structure 1 is connected with bascule 2 by Worm and worm-wheel gearing；The fixed structure 1 and bascule 2
On the bolt fixing hole that is provided through；Worm gear 7 is fixed with the bascule 2；The worm gear 7 is solid by Worm Bearing 5
It is scheduled on bascule 2, the worm screw 6 connected by worm bearing is fixed with the fixed structure 1；The worm screw 6 and worm gear 7
Engage, the motion structure of the worm bearing connecting worm 6, the eccentric wheel limit of adjustment aperture size is provided with bolt fixing hole
Bit architecture；Bolt fixing hole includes the first bolt fixing hole and the second bolt fixing hole；First bolt fixing hole is arranged at
On fixed structure 1；Second bolt fixing hole is arranged on bascule 2, first bolt fixing hole and the second bolt
Mounting hole is connected；The motion structure of worm screw 6 is hydraulic drive motor；6 gear diameter of worm screw is less than 7 gear diameter of worm gear；It is fixed
The regular jaw 3 of structure 1 is recessed for the flat pliers of serration；4 one end of moving jaw of bascule 2 is flat pliers mouth；The other end be with
The recessed jaw of serration；Bolt fixing hole can be according to the diameter adjustment pore size of surveyed bolt；Regular jaw 3 and moving jaw
4 have heating function；Fixed structure 1 and bascule 2 have heating function.
When in use, the regular jaw 3 in 2 structure of fixed structure 1 and bascule and moving jaw 4 close, and bolt 8 is put
Moved to 8 clamping of bolt, hydraulic drive motor work in bolt fixing hole and by eccentric wheel position-limit mechanism in bolt fixing hole
Rotate rotary worm 6, since worm screw 6 engages with worm gear 7 and drives worm gear 7 to move, fixed structure 1 and bascule 2
By Worm and worm-wheel gearing relative motion, reach and produce pulling force and deformation to through the bolt 8 in bolt fixing hole
Power, at this time at least two eccentric wheel position-limit mechanisms also act power, pulling force and change from different directions are generated to bolt 8
Shape, the pulling force and deformation can calculate and judge whether bolt reaches yield strength after producing plastic deformation, for controlling bolt
Fatigue wear have important meaning；It ensure that the service life practical function of bolt is good, reach the expection of core main pump installation
Effect.
Claims (7)
1. a kind of bolt tension measuring instrument, including fixed structure (1) and part are nested in the bascule in fixed structure (1)
(2), and measurement fixed structure (1) and bascule (2) between pulling force measuring instrument, it is characterised in that：The fixed structure
(1) connected with bascule (2) by Worm and worm-wheel gearing；It is provided with the fixed structure (1) and bascule (2)
Perforative bolt fixing hole；Worm gear (7) is fixed with the bascule (2)；The worm gear (7) is solid by Worm Bearing (5)
It is scheduled on bascule (2), the worm screw (6) connected by worm bearing is fixed with the fixed structure (1)；The worm screw
(6) engaged with worm gear (7), the motion structure of the worm bearing connection rotary worm (6)；Adjusting is provided with bolt fixing hole
The eccentric wheel position limiting structure of pore size.
A kind of 2. bolt tension measuring instrument as claimed in claim 1, it is characterised in that：The bolt fixing hole includes the first bolt
Mounting hole and the second bolt fixing hole；First bolt fixing hole is arranged on fixed structure (1)；Second bolt is fixed
Hole is arranged on bascule (2), and first bolt fixing hole and the second bolt fixing hole are connected.
A kind of 3. bolt tension measuring instrument as claimed in claim 2, it is characterised in that：The motion structure of the worm screw (6) is liquid
One kind or combination that pressure driver, air pressure transmission motivation, point are hit.
A kind of 4. bolt tension measuring instrument as claimed in claim 3, it is characterised in that：Worm screw (6) gear diameter is less than snail
Take turns (7) gear diameter.
A kind of 5. bolt tension measuring instrument as claimed in claim 4, it is characterised in that：The regular jaw of the fixed structure (1)
(3) it is recessed for the flat pliers of serration；Moving jaw (4) one end of bascule (2) is flat pliers mouth；The other end is the recessed pincers with serration
Mouthful.
A kind of 6. bolt tension measuring instrument as claimed in claim 5, it is characterised in that：The regular jaw (3) and moving jaw
(4) there is heating function；Fixed structure (1) and bascule (2) have heating function.
A kind of 7. bolt tension measuring instrument as claimed in claim 6, it is characterised in that：The bias set in the bolt fixing hole
Take turns position limiting structure at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938596.9U CN207248624U (en) | 2017-07-28 | 2017-07-28 | A kind of bolt tension measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938596.9U CN207248624U (en) | 2017-07-28 | 2017-07-28 | A kind of bolt tension measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248624U true CN207248624U (en) | 2018-04-17 |
Family
ID=61880122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720938596.9U Expired - Fee Related CN207248624U (en) | 2017-07-28 | 2017-07-28 | A kind of bolt tension measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207248624U (en) |
-
2017
- 2017-07-28 CN CN201720938596.9U patent/CN207248624U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20190728 |