CN203275002U - Simple device for measuring axial force, turn angle and elongation of bolt - Google Patents
Simple device for measuring axial force, turn angle and elongation of bolt Download PDFInfo
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- CN203275002U CN203275002U CN 201320126179 CN201320126179U CN203275002U CN 203275002 U CN203275002 U CN 203275002U CN 201320126179 CN201320126179 CN 201320126179 CN 201320126179 U CN201320126179 U CN 201320126179U CN 203275002 U CN203275002 U CN 203275002U
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Abstract
The utility model discloses a simple device for measuring an axial force, a turn angle and the elongation of a bolt. The simple device comprises a gasket, a pressure sensor, a support and a thread sleeve, wherein middle parts of the gasket, the pressure sensor, the support and the thread sleeve are all provided with a through hole, the shape of the through hole in the support is a polygon, the front end face of the support is provided with angle graduation lines around the through hole, the thread sleeve is inserted into the through hole from the rear end face of the support, the tail end of the thread sleeve is provided with a plurality of limit surfaces corresponding to the inner wall shape of the through hole in the support, and a bolt to be measured penetrates through the gasket and the pressure sensor and screwed in the thread sleeve in the support. Usage of the simple device disclosed by the utility model can improve the efficiency. The simple device is convenient to use, simple in structure and relatively low in cost, and makes up defects that special metering equipment is expensive, complicated to operate and the like, thereby being especially suitable for carrying out spot check on bolts in small and medium-sized enterprises and mass assembling fields. The simple device is an effective means for quality control, and can ensure the validity of assembled bolts.
Description
Technical field
The utility model relates generally to mechanical field, is specifically related to the device of a kind of easy survey Axial stress in bolt, corner, elongation.
Background technology
Mechanical field all relates to different size, the bolt of model at present.Connection for some key components and partss needs bolt to satisfy certain axial force, and in a lot of situations, can't directly measure the axial force of bolt in assembling process, the form that can only be translated into moment+corner is assembled, but for the bolt of different manufacturers, assembling in the same way, can not guarantee its axial force, therefore in order to guarantee that these close the axial force of key bolt, need to regularly go to check the axial force of bolt, corner, the relation between moment.And present this pick-up unit is mostly to use special measuring equipment, and these apparatus expensive, the operation relative complex, and it is high that maintaining requires, and be not suitable for a large amount of online scenes and carry out effective sampling observation of bolt.This utility model is an effectively quality control method, can guarantee the validity of our tackbolt.
The utility model content
The utility model provides the device of a kind of easy survey Axial stress in bolt, corner, elongation.
The utility model is achieved through the following technical solutions:
a kind of easy survey Axial stress in bolt, corner, the device of elongation, it is characterized in that: include pad (1), pressure transducer (2), bearing (3), swivel nut (4), described pad (1), pressure transducer (2), bearing (3), the middle part of swivel nut (4) all has through hole, through hole on bearing (3) be shaped as polygon, the front end face of bearing (3) is equipped with the angle index line around through hole, swivel nut (4) is inserted in the through hole of bearing (3) by the rear end face of bearing (3), the end of swivel nut (4) is provided with a plurality of confined planes (6) corresponding with the inner wall shape of the through hole of bearing (3), bolt to be measured passes pad (1), screw in after pressure transducer (2) in the swivel nut (4) in bearing (3).
The device of described a kind of easy survey Axial stress in bolt, corner, elongation, it is characterized in that: the through hole on described bearing (3) be shaped as polygon, the end of swivel nut (4) is provided with four confined planes (6) corresponding with the inner wall shape of the through hole of bearing (3).
The device of described a kind of easy survey Axial stress in bolt, corner, elongation is characterized in that: the little lattice scale of each of described angle index line is 1 degree.
The device of described a kind of easy survey Axial stress in bolt, corner, elongation is characterized in that: also have a wire casing (5) on the front end face of described bearing (3), an end of wire casing (5) extends to the through hole on bearing (3).
The depth of parallelism, the flatness on the plane, both sides of pad are higher, guarantee that pad can smooth pressure sensor and the power that do not produce inclination causes sensor to damage or the axial force measured is inaccurate, the smooth finish of pad and sensor surface of contact requires to reach 0.8, the surface smoothness that pad coordinates with it when requiring with measured bolt installation with the surface of contact smooth finish of bolt pressure-bearing surface is the same, so just can measure the actual torque of bolt under the operating mode of reality; Being shaped as of pressure transducer is ring-like, and in selecting according to measured bolt size, hole dimension is a bit larger tham the sensor of bolt external diameter; The bearing front end face is carved with dark 0.2 scale mark, and each little lattice scale is 1 degree, and its function is to detect the corner of bolt, and the bearing front end face also has a wire casing, so that the pressure transducer wire harness is by connecting display.The structure of swivel nut has been 4 confined planes, and when can effectively prevent from twisting bolt, moment is excessive and make the swivel nut transfer.
During measurement, first with pen point one mark on bolt head, the moment of torsion that tights a bolt and to apply when torque spanner is directly read to tighten with torque spanner, can directly read the corner of bolt according to the scale of bearing front end face, pressure transducer can directly be measured axial force, measures the elongation of bolt from the available clock gauge in swivel nut hole or ultrasonic wavelength instrument at a base rear end.Just can measure easily screw-down torque, the axial force of censorship bolt, elongation and the corner of bolt by such covering device.
The utility model has the advantages that:
Use of the present utility model can be raised the efficiency, the convenient use, simple in structure, cost is relatively low, the deficiencies such as special measuring apparatus expensive, complicated operation have been made up, the scene that is well suited for medium and small sized enterprises and assembling in enormous quantities is inspected by random samples bolt, and this utility model is an effectively quality control method, can guarantee the validity of our tackbolt.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
as shown in Figure 1, a kind of easy survey Axial stress in bolt, corner, the device of elongation, include pad 1, pressure transducer 2, bearing 3, swivel nut 4, pad 1, pressure transducer 2, bearing 3, the middle part of swivel nut 4 all has through hole, through hole on bearing 3 be shaped as polygon, the front end face of bearing 3 is equipped with the angle index line around through hole, swivel nut 4 is inserted in the through hole of bearing 3 by the rear end face of bearing 3, the end of swivel nut 4 is provided with a plurality of confined planes 6 corresponding with the inner wall shape of the through hole of bearing 3, bolt to be measured passes pad 1, in swivel nut 4 in the rear screw-in bearing 3 of pressure transducer 2.
Through hole on bearing 3 be shaped as polygon, the end of swivel nut 4 is provided with four confined planes 6 corresponding with the inner wall shape of the through hole of bearing 3.
The little lattice scale of each of angle index line is 1 degree.
Also have a wire casing 5 on the front end face of bearing 3, an end of wire casing 5 extends to the through hole on bearing 3.
The bolt of doing experiment is passed pad 1, pressure transducer 2 screw-in swivel nuts 4, first with pen point one mark on bolt head, the moment of torsion that tights a bolt and to apply when torque spanner is directly read to tighten with torque spanner, can directly read the corner of bolt according to the scale of bearing 3 front end faces, pressure transducer 2 can directly be measured axial force, measures the elongation of bolt from the swivel nut 4 available clock gauges in hole or ultrasonic wavelength instrument in bearing 3 rear ends.Just can measure easily screw-down torque, the axial force of censorship bolt, elongation and the corner of bolt by such covering device.
Claims (4)
1. survey easily Axial stress in bolt for one kind, corner, the device of elongation, it is characterized in that: include pad (1), pressure transducer (2), bearing (3), swivel nut (4), described pad (1), pressure transducer (2), bearing (3), the middle part of swivel nut (4) all has through hole, through hole on bearing (3) be shaped as polygon, the front end face of bearing (3) is equipped with the angle index line around through hole, swivel nut (4) is inserted in the through hole of bearing (3) by the rear end face of bearing (3), the end of swivel nut (4) is provided with a plurality of confined planes (6) corresponding with the inner wall shape of the through hole of bearing (3), bolt to be measured passes pad (1), screw in after pressure transducer (2) in the swivel nut (4) in bearing (3).
2. the device of a kind of easy survey Axial stress in bolt according to claim 1, corner, elongation, it is characterized in that: the through hole on described bearing (3) be shaped as polygon, the end of swivel nut (4) is provided with four confined planes (6) corresponding with the inner wall shape of the through hole of bearing (3).
3. the device of a kind of easy survey Axial stress in bolt according to claim 1, corner, elongation is characterized in that: the little lattice scale of each of described angle index line is 1 degree.
4. the device of a kind of easy survey Axial stress in bolt according to claim 1, corner, elongation, it is characterized in that: also have a wire casing (5) on the front end face of described bearing (3), an end of wire casing (5) extends to the through hole on bearing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126179 CN203275002U (en) | 2013-03-19 | 2013-03-19 | Simple device for measuring axial force, turn angle and elongation of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126179 CN203275002U (en) | 2013-03-19 | 2013-03-19 | Simple device for measuring axial force, turn angle and elongation of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275002U true CN203275002U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126179 Expired - Lifetime CN203275002U (en) | 2013-03-19 | 2013-03-19 | Simple device for measuring axial force, turn angle and elongation of bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275002U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968743A (en) * | 2014-05-20 | 2014-08-06 | 余姚市振兴工贸发展有限公司 | Inner chamfer detection device and method |
| CN104458090A (en) * | 2014-11-28 | 2015-03-25 | 中国石油天然气集团公司 | Logging instrument sidewall contact device universal measuring device |
| CN105627970A (en) * | 2015-12-30 | 2016-06-01 | 广西玉柴机器股份有限公司 | Detection method of gap of rotating speed induction plug |
| CN106482603A (en) * | 2016-12-28 | 2017-03-08 | 日泰（上海）汽车标准件有限公司 | Lifting frock demarcated by bolt |
| CN107782543A (en) * | 2017-09-27 | 2018-03-09 | 中国神华能源股份有限公司 | The monitoring method of monitoring device and nut tight condition |
| CN108204876A (en) * | 2017-12-25 | 2018-06-26 | 烟台大学 | Pretightning force real-time detection apparatus and method during a kind of bolts assemblies |
| CN109283041A (en) * | 2018-10-09 | 2019-01-29 | 大连理工大学 | An experimental device and experimental method for measuring ultimate contact stress of connected parts in bolted joints |
| CN109489887A (en) * | 2018-12-13 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | Bolt elongate measures test system |
| CN110595662A (en) * | 2019-08-30 | 2019-12-20 | 南京中车浦镇城轨车辆有限责任公司 | Method and device for detecting actual torque of railway vehicle after bolted connection |
| CN110954260A (en) * | 2019-11-27 | 2020-04-03 | 同济大学 | Gasket type pressure sensor for detecting bolt pretightening force |
-
2013
- 2013-03-19 CN CN 201320126179 patent/CN203275002U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968743A (en) * | 2014-05-20 | 2014-08-06 | 余姚市振兴工贸发展有限公司 | Inner chamfer detection device and method |
| CN104458090A (en) * | 2014-11-28 | 2015-03-25 | 中国石油天然气集团公司 | Logging instrument sidewall contact device universal measuring device |
| CN105627970A (en) * | 2015-12-30 | 2016-06-01 | 广西玉柴机器股份有限公司 | Detection method of gap of rotating speed induction plug |
| CN106482603A (en) * | 2016-12-28 | 2017-03-08 | 日泰（上海）汽车标准件有限公司 | Lifting frock demarcated by bolt |
| CN107782543A (en) * | 2017-09-27 | 2018-03-09 | 中国神华能源股份有限公司 | The monitoring method of monitoring device and nut tight condition |
| CN108204876A (en) * | 2017-12-25 | 2018-06-26 | 烟台大学 | Pretightning force real-time detection apparatus and method during a kind of bolts assemblies |
| CN108204876B (en) * | 2017-12-25 | 2024-04-16 | 烟台大学 | Device and method for detecting pretightening force in real time in bolt assembly process |
| CN109283041A (en) * | 2018-10-09 | 2019-01-29 | 大连理工大学 | An experimental device and experimental method for measuring ultimate contact stress of connected parts in bolted joints |
| CN109489887A (en) * | 2018-12-13 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | Bolt elongate measures test system |
| CN110595662A (en) * | 2019-08-30 | 2019-12-20 | 南京中车浦镇城轨车辆有限责任公司 | Method and device for detecting actual torque of railway vehicle after bolted connection |
| CN110595662B (en) * | 2019-08-30 | 2021-11-30 | 南京中车浦镇城轨车辆有限责任公司 | Method and device for detecting actual torque of railway vehicle after bolted connection |
| CN110954260A (en) * | 2019-11-27 | 2020-04-03 | 同济大学 | Gasket type pressure sensor for detecting bolt pretightening force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |