CN202210007U - Experiment device for measuring thread pretightening torque coefficients - Google Patents
Experiment device for measuring thread pretightening torque coefficients Download PDFInfo
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- CN202210007U CN202210007U CN2011203550946U CN201120355094U CN202210007U CN 202210007 U CN202210007 U CN 202210007U CN 2011203550946 U CN2011203550946 U CN 2011203550946U CN 201120355094 U CN201120355094 U CN 201120355094U CN 202210007 U CN202210007 U CN 202210007U
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Abstract
The utility model relates to an experiment device for measuring thread pretightening torque coefficients and belongs to the technical field of the measurement of the thread pretightening torque coefficients. The experiment device comprises a wrench socket, a torque sensor, a shell, a force bearing block, a connecting rod, a tensile force sensor, a long bolt, a data acquisition device, a display and the like, wherein a rear end cover at the left end of the shell is provided with the long bolt; the force bearing block is arranged at the right end in the shell; the long bolt is connected with the left side of the force bearing block through the connecting rod and is provided with the tensile force sensor, the data acquisition device and the display; a measured bolt is arranged on the right side of the force bearing block; a nut socket is arranged at the outer end of the measured bolt; and the torque sensor, the data acquisition device and the wrench socket are arranged at the other end of the nut socket. The experiment device can measure torque coefficients of various bolts in actual environment according to actual use conditions, conveniently and accurately controls pretightening force by controlling the pretightening torque, and solves the problem that the pretightening force is difficult to control caused by low control precision in engineering application of the conventional torque method.
Description
Technical field
The utility model relates to a kind of experimental provision of measuring screw thread prefastening torque coefficient, belongs to screw thread prefastening torque coefficient field of measuring technique.
Background technology
At present the method for control screw thread pretightning force has four kinds, i.e. bolt elongate method, calibrated wrench method, moment of torsion-corner method and yield point method.Bolt elongate method, these two kinds of methods of yield point method are because its engineering practicability is poor, and the height of controlling cost is only used in laboratory study now; Moment of torsion-corner rule is because of its apparatus expensive, and should use inconvenience, is mainly used in important privileged sites such as engine cylinder cover connection at present.Calibrated wrench method is used most convenient, the most extensive in engineering, economy is best, but that its deficiency is control accuracy is not high.
Summary of the invention
The purpose of the utility model is, provides a kind of and can overcome the not high defective of calibrated wrench method control pretightning force precision, comes to control accurately pretightning force through control pretightning force moment of torsion, can measure the torque coefficient of the various bolts of M8～M64; And simple in structure, cheap, the experimental provision of measurement screw thread prefastening torque coefficient easy to use.
The utility model is to realize above-mentioned purpose through following technical scheme:
The experimental provision of this measurement screw thread prefastening torque coefficient is made up of wrench socket, wrench socket support, torque sensor, ut socket, housing, force-bearing piece, connecting rod, pulling force sensor, thru-bolt, setting nut, base, set bolt, bearing, data acquisition unit, display, cushion block, hold-down nut and rear end cap; It is characterized in that: the left end of housing is equipped with rear end cap; The lower end of housing is equipped with base, and the middle part of rear end cap is equipped with thru-bolt through setting nut; Right-hand member in the housing has force-bearing piece through Bearing Installation, and thru-bolt is connected with the left side of force-bearing piece through connecting rod, and pulling force sensor, data acquisition unit and display are installed on the thru-bolt; The right side of force-bearing piece is equipped with tested bolt through cushion block; Ut socket is equipped with through hold-down nut in the outer end of tested bolt; The other end of ut socket is equipped with torque sensor and data acquisition unit, and torque sensor is connected with data acquisition unit through the fixing wrench socket of wrench socket support.
The utility model beneficial effect compared with prior art is:
This experimental provision of measuring screw thread prefastening torque coefficient can be according to actual operating position; Under actual environment, measure the torque coefficient of the various bolts of M8～M64; The prefastening torque coefficient is applied in the actual use, can comes to control accurately pretightning force through the control prefastening torque easily.It is not high to have solved existing calibrated wrench method control accuracy in practical applications, causes the unmanageable problem of pretightning force.
Description of drawings:
Fig. 1 is a kind of main TV structure figure that measures the experimental provision of screw thread prefastening torque coefficient;
Fig. 2 is a kind of plan structure figure that measures the experimental provision of screw thread prefastening torque coefficient.
Among the figure: 1, wrench socket, 2, the wrench socket support, 3, torque sensor, 4, ut socket, 5, housing; 6, force-bearing piece, 7, connecting rod, 8, pulling force sensor, 9, thru-bolt, 10, setting nut; 11, base, 12, set bolt, 13, bearing, 14, data acquisition unit, 15, display; 16, tested bolt, 17, cushion block, 18, cushion block, 19, hold-down nut, 20, rear end cap.
Embodiment:
This experimental provision of measuring screw thread prefastening torque coefficient is made up of wrench socket 1, wrench socket support 2, torque sensor 3, ut socket 4, housing 5, force-bearing piece 6, connecting rod 7, pulling force sensor 8, thru-bolt 9, setting nut 10, base 11, set bolt 12, bearing 13, data acquisition unit 14, display 15, cushion block 17, cushion block 18, hold-down nut 19 and rear end cap 20.The left end of housing 5 is equipped with rear end cap 20, and the lower end of housing 5 is equipped with base 11, and fixes through the experimental provision that the set bolt on the base 11 12 will be measured screw thread prefastening torque coefficient.The middle part of rear end cap 20 is equipped with thru-bolt 9 through setting nut 10; Through bearing 13 force-bearing piece 6 is installed the right-hand member that it slides in the housing 5 through the slideway in the housing 5; Thru-bolt 9 is connected with the left side of force-bearing piece 6 through connecting rod 7; Pulling force sensor 8, data acquisition unit 14 and display 15 are installed on the thru-bolt 9, and pulling force sensor 8 is measured the pretightning force signal.The right side of force-bearing piece 6 is equipped with tested bolt 16 through cushion block 17 and cushion block 18; Ut socket 4 is equipped with through hold-down nut 19 in the outer end of tested bolt 16; The other end of ut socket 4 is equipped with torque sensor 3 and data acquisition unit 14; Torque sensor 3 is connected the wrench socket of fixing through wrench socket support 21 with data acquisition unit 14, measure the prefastening torque signal.Torque sensor 3 links to each other with data acquisition unit 14 through data connecting line with pulling force sensor 8, and data acquisition unit 14 directly links to each other with display 15.Data acquisition unit 14 is to utilize usb signal amplifier, A/D converter with writing data into memory FIFD, through the USB system AD data is sent into the display 15 of computing machine at last, confirms the prefastening torque coefficient.
When this measures the experimental provision work of screw thread prefastening torque coefficient; Be through wrench socket 1 its hold-down nut 19 to be applied moment of torsion by spanner; Make tested bolt 16 pretensions and extension elongation produce deformation, can measure the moment of torsion data at 3 of the torque sensors of tested bolt 16 right-hand members.On the other hand,, tested bolt 16 suffered pulling force are passed to pulling force sensor 8, measure the pulling force that makes bolt elongate, by data acquisition unit 14 data are sent on the display 15 again through pulling force sensor 8 through force-bearing piece 6 and connecting rod 7.
Claims (1)
1. experimental provision of measuring screw thread prefastening torque coefficient; It is made up of wrench socket (1), wrench socket support (2), torque sensor (3), ut socket (4), housing (5), force-bearing piece (6), connecting rod (7), pulling force sensor (8), thru-bolt (9), setting nut (10), base (11), set bolt (12), bearing (13), data acquisition unit (14), display (15), cushion block (17), cushion block (18), hold-down nut (19) and rear end cap (20); It is characterized in that: the left end of housing (5) is equipped with rear end cap (20); The lower end of housing (5) is equipped with base (11), and the middle part of rear end cap (20) is equipped with thru-bolt (9) through setting nut (10); Right-hand member in the housing (5) is equipped with force-bearing piece (6) through bearing (13); Thru-bolt (9) is connected with the left side of force-bearing piece (6) through connecting rod (7), and pulling force sensor (8), data acquisition unit (14) and display (15) are installed on the thru-bolt (9); The right side of force-bearing piece (6) is equipped with tested bolt (16) through cushion block (17), cushion block (18); Ut socket (4) is equipped with through hold-down nut (19) in the outer end of tested bolt (16); The other end of ut socket (4) is equipped with torque sensor (3) and data acquisition unit (14), and torque sensor (3) is connected with data acquisition unit (14) through the fixing wrench socket (1) of wrench socket support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203550946U CN202210007U (en) | 2011-09-21 | 2011-09-21 | Experiment device for measuring thread pretightening torque coefficients |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203550946U CN202210007U (en) | 2011-09-21 | 2011-09-21 | Experiment device for measuring thread pretightening torque coefficients |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202210007U true CN202210007U (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203550946U Expired - Fee Related CN202210007U (en) | 2011-09-21 | 2011-09-21 | Experiment device for measuring thread pretightening torque coefficients |
Country Status (1)
| Country | Link |
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| CN (1) | CN202210007U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245446A (en) * | 2013-05-29 | 2013-08-14 | 吉林大学 | Testing platform for anti-torque device of deep ice center and under-ice base rock power-driven mechanical drilling tool |
| CN103323170A (en) * | 2013-06-14 | 2013-09-25 | 内蒙古第一机械集团有限公司 | Pretightening force measuring system and method of bolt set connection |
| CN105300671A (en) * | 2015-09-16 | 2016-02-03 | 北京理工大学 | Precision bolting torque-preload mapping relationship measuring device |
| CN106289622A (en) * | 2016-10-31 | 2017-01-04 | 西安建筑科技大学 | A kind of device and method measuring high-strength bolt auxiliary connection torque coefficient |
| CN109186843A (en) * | 2018-07-25 | 2019-01-11 | 北京理工大学 | A kind of measuring device and method that torque coefficient is influenced for studying pressing force |
| CN110926930A (en) * | 2019-12-25 | 2020-03-27 | 中国航空工业集团公司西安飞机设计研究所 | Torsion-tension relation measuring device and method for aircraft stud structure |
| CN112924072A (en) * | 2021-01-28 | 2021-06-08 | 宁波更大集团有限公司 | Torque measuring instrument |
-
2011
- 2011-09-21 CN CN2011203550946U patent/CN202210007U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245446A (en) * | 2013-05-29 | 2013-08-14 | 吉林大学 | Testing platform for anti-torque device of deep ice center and under-ice base rock power-driven mechanical drilling tool |
| CN103245446B (en) * | 2013-05-29 | 2015-06-03 | 吉林大学 | Testing platform for anti-torque device of deep ice center and under-ice base rock power-driven mechanical drilling tool |
| CN103323170A (en) * | 2013-06-14 | 2013-09-25 | 内蒙古第一机械集团有限公司 | Pretightening force measuring system and method of bolt set connection |
| CN103323170B (en) * | 2013-06-14 | 2015-02-18 | 内蒙古第一机械集团有限公司 | Pretightening force measuring system and method of bolt set connection |
| CN105300671A (en) * | 2015-09-16 | 2016-02-03 | 北京理工大学 | Precision bolting torque-preload mapping relationship measuring device |
| CN105300671B (en) * | 2015-09-16 | 2018-01-05 | 北京理工大学 | A kind of precision bolt connects moment of torsion pretightning force mapping relations measurement apparatus |
| CN106289622A (en) * | 2016-10-31 | 2017-01-04 | 西安建筑科技大学 | A kind of device and method measuring high-strength bolt auxiliary connection torque coefficient |
| CN109186843A (en) * | 2018-07-25 | 2019-01-11 | 北京理工大学 | A kind of measuring device and method that torque coefficient is influenced for studying pressing force |
| CN109186843B (en) * | 2018-07-25 | 2020-07-17 | 北京理工大学 | Measuring device and method for researching influence of pressing force on torque coefficient |
| CN110926930A (en) * | 2019-12-25 | 2020-03-27 | 中国航空工业集团公司西安飞机设计研究所 | Torsion-tension relation measuring device and method for aircraft stud structure |
| CN110926930B (en) * | 2019-12-25 | 2022-11-22 | 中国航空工业集团公司西安飞机设计研究所 | Torsion-tension relation measuring device and method for aircraft stud structure |
| CN112924072A (en) * | 2021-01-28 | 2021-06-08 | 宁波更大集团有限公司 | Torque measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20120921 |