CN101603867A - With the collector ring group be the torque sensor of one - Google Patents

With the collector ring group be the torque sensor of one Download PDF

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Publication number
CN101603867A
CN101603867A CNA200910054986XA CN200910054986A CN101603867A CN 101603867 A CN101603867 A CN 101603867A CN A200910054986X A CNA200910054986X A CN A200910054986XA CN 200910054986 A CN200910054986 A CN 200910054986A CN 101603867 A CN101603867 A CN 101603867A
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China
Prior art keywords
sensor
collector ring
ring
rectangle
elastomer
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CNA200910054986XA
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Chinese (zh)
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CN101603867B (en
Inventor
石钢
胡飒英
夏荫陪
金泽敏
沈旭栋
陈欣晶
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Shanghai Institute of Technology
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Shanghai Institute of Technology
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Abstract

The present invention relates to a kind of and collector ring group is the torque sensor of one, comprise collector ring, sensor, it is characterized in that: described collector ring is made up of two semicircular ring, two semicircular ring collector ring connect by bolt and nut, each collector ring is provided with 4 groups of conductive copper sheets that are used for transmission signals, in the semicircular ring collector ring sensor that is used to test moment of torsion is installed, sensor is by the rectangle securement head, sensor elastomer, the sensor stiff end is formed, and is sensor elastomer between rectangle securement head and the sensor stiff end, is provided with resistance strain gage above the sensor elastomer.This sensor utilizes mechanics principle that torsion-testing is carried out in the flexural deformation that the torsional deflection of working shaft converts sensor to, can reduce the work on the spot of torsion-testing greatly, makes that on-the-spot test is easier to carry out, and has characteristics such as measuring accuracy height.

Description

With the collector ring group be the torque sensor of one
Technical field
The present invention relates to a kind of torque sensor, especially a kind ofly utilize flexible member in the collector ring to follow that collector ring is out of shape with measured axis and the sensor of the operation torque of test job axle.
Background technology
At present, torsion-testing collector ring (Fig. 1,2) commonly used is by collector ring A, nut B, and packing ring C, coupling bolt D adjusts bolt E, formations such as conductive copper sheet F.The torsion-testing of working shaft need carry out at the scene, must polish, clean, paste work such as foil gauge and group bridge on primary structure member, and it is very complicated that install at the scene of sensor, and the test error that on-the-spot subsides foil gauge brings is big.In addition, the error that can bring when simulated calibration and similar conversion.
Summary of the invention
The present invention is that a kind of and collector ring group will be provided is the torque sensor of one, this sensor utilizes mechanics principle that torsion-testing is carried out in the flexural deformation that the torsional deflection of working shaft converts sensor to, can reduce the work on the spot of torsion-testing greatly, making that on-the-spot test is easier carries out, and has characteristics such as measuring accuracy height.
For achieving the above object, technical scheme of the present invention is: a kind of and collector ring group is the torque sensor of one, comprise collector ring, sensor, be characterized in: collector ring is made up of two semicircular ring, two semicircular ring collector ring connect by bolt and nut, each collector ring is provided with 4 groups of conductive copper sheets that are used for transmission signals, in the semicircular ring collector ring sensor that is used to test moment of torsion is installed, sensor is by the rectangle securement head, sensor elastomer, and the sensor stiff end constitutes, be connected sensor elastomer between rectangle securement head and the sensor stiff end, be provided with resistance strain gage above the sensor elastomer.
Resistance strain gage is formed by 4; Rectangle securement head height H 1The outer diameter D of=tested working shaft-collector ring inside diameter D 1-(5 ~ 10mm); Width B 1The outer diameter D of=tested working shaft-collector ring inside diameter D 1-(20 ~ 30mm); Length L 1=B 1
Sensor elastomer is a rectangle, its height H 2=H 1/ (2 ~ 3); Width B 2=H 2/ (2 ~ 3); Length L 2=collector ring length B-rectangle securement head length L 1-sensor stiff end length L 3-(5 ~ 10mm).
The sensor stiff end is cylindrical, its diameter D 3=H 1, length L 3=(5 ~ 10mm).
The semicircular ring collector ring is provided with the sensor mounting hole, and sensor is inserted in the location of sensor mounting hole and collector ring, and uses bolt M=B 1(1/2 ~ 1/3) is fixing, and M chooses national standard series in calculated value.The stiff end of sensor is inserted in the fixed orifice of semicircular ring collector ring bottom.
The invention has the beneficial effects as follows: the present invention utilizes mechanics principle that torsion-testing is carried out in the flexural deformation that the torsional deflection of working shaft converts sensor to, can reduce the work on the spot of torsion-testing greatly, makes that on-the-spot test is easier to carry out.
The present invention has following characteristics:
(1) be designed to sensor and collector ring integrated.
(2) utilize mechanics principle that torsion-testing is carried out in the flexural deformation that the torsional deflection of working shaft converts sensor to.
(3) greatly reduce the work on the spot of torsion-testing, need not polish, clean, paste work such as foil gauge and group bridge on working shaft, making that on-the-spot torsion-testing is easier carries out.
(4) sensor can be made in standardization.Avoided on-the-spot subsides foil gauge to make the test error that brings.
(5) staking-out work of sensor can standardization.Present transducer calibration only needs sensor elastomer is added that corresponding its output valve that obtains of normal loading gets final product, and makes measuring accuracy improve greatly.The error of having brought when having improved by original simulated calibration and similar conversion.
Description of drawings
Fig. 1 is existing torsion-testing collector ring front view;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a front view of the present invention;
Fig. 4 is Fig. 3 left view;
Fig. 5 is the sensor front view;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the left view of Fig. 5;
Fig. 8 is test circuit (electric bridge) schematic diagram;
Fig. 9 is test philosophy figure of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As Fig. 3, shown in 4, the present invention and collector ring group are the torque sensor of one, comprise collector ring 1, sensor 9.
Collector ring 1 is made up of two semicircular ring, is installed on the working shaft.Insulating material (high-strength nylon or similar material).Its inside diameter D 1By diameter (external diameter) decision of tested working shaft, outer diameter D=D 1+ (30 ~ 50mm), the width of collector ring should be less than the length of working shaft.
Two semicircular ring collector ring are provided with the binding that 2, two semicircular ring collector ring of bolt hole connect by bolt and nut.Bolt hole 2 is by the diameter and the fastening requirement decision of working shaft.Each collector ring is provided with four groups of conductive copper sheets 3 that are used for transmission signals.Be used to install copper sheet groove 4 its groove widths and groove depth on the collector ring 1 by the diameter decision of transmitting brush wire.Generally get 3 ~ 5mm.Be provided with lead-in wire groove 5 in the semicircular ring collector ring, be used for the lead of placement sensor 9, generally get 3 ~ 5mm.Fixed orifice 6 is used for fixing the round bar head of sensor elastomer.Sipes 7 is used for fixing the lead (interconnecting) of copper sheet and sensor.In the semicircular ring collector ring sensor 9 that is used to test moment of torsion is installed.
Extremely shown in Figure 7 as Fig. 5, sensor 9 is by rectangle securement head 10, sensor elastomer 11, and sensor stiff end 12 constitutes, be connected sensor elastomer 11 between rectangle securement head 10 and the sensor stiff end 12, be provided with resistance strain gage 14 above the sensor elastomer 11.
Rectangle securement head 10 height H 1The outer diameter D of=tested working shaft-collector ring inside diameter D 1-(5 ~ 10mm); Width B 1The outer diameter D of=tested working shaft-collector ring inside diameter D 1-(20 ~ 30mm); Length L 1=B 1
Sensor elastomer 11 is a rectangle, its height H 2=H 1/ (2 ~ 3); Width B 2=H 2/ (2 ~ 3); Length L 2=collector ring length B-rectangle securement head length L 1-sensor stiff end length L 3-(5 ~ 10mm).
Sensor stiff end 12 is cylindrical, its diameter D 3=H 1, length L 3=(5 ~ 10mm).
The semicircular ring collector ring is provided with sensor mounting hole and fixing threaded hole 13, is used for fixing sensor elastomer 11.Sensor is inserted in the location of sensor mounting hole and collector ring 1, and uses bolt M=B 1(1/2 ~ 1/3) is fixing, and M chooses national standard series in calculated value.Sensor stiff end 12 is inserted in the fixed orifice of semicircular ring collector ring bottom.
Resistance strain gage is formed by 4, corresponding and full-bridge test circuit.The paste position of foil gauge is except L 0Also must keep and parallel axes outward.L 0＝5~10mm。Its test circuit (electric bridge) as shown in Figure 8.
As shown in Figure 9, principle of work of the present invention is:
Collector ring is installed on (requirement is fastenedly connected) on the working shaft, follows working shaft and rotates also deform in same pace together.Collector ring inner sensor elastic body produces distortion (elastic body is converted to flexural deformation) thereupon, utilizes at the foil gauge on the elastic body and records twisting stress on the working shaft.That is:
(1) according to mechanical characteristic, looking collector ring and circular shaft is one (require collector ring and axle close installation together, follow axle distortion together).Collector ring produces the distortion of circular shaft under the torque load effect equally.The internal diameter of collector ring matches with axle, and external diameter can be decided by concrete structure.
(2) utilize the deformation characteristics of circular shaft, design a sensor and be installed in the collector ring, it is out of shape with collector ring.When circular shaft produces distortion its each circumference of surface around the relative rotation of axis an angle θ see figure, 2 on the length of axis have produced a relative displacement.Its value can be considered diastrophic amount of deflection ω.Can set up following relation;
ω＝r×θ
By to after the transducer calibration, can obtain distorting stress on the working shaft as long as in the reality test, record its bending stress value of the resistance strain gage on the elastic body.
In structural design, the bending stress during sensor senses device elastic body body (intermediate rectangular cross section) impression work.Its section (H 2* B 2) locate B 2The young pathbreaker of physical dimension experience maximum distortion, so arrange one group of foil gauge herein.
The torsion-testing technology and the torque sensor characteristics that are integrated with the collecting ring group:
(1) be designed to sensor and collecting ring integrated.
(2) utilize mechanics principle that the flexural deformation that the torsional deflection of working shaft converts sensor to is advanced The row torsion-testing.
(3) greatly reduce the work on the spot of torsion-testing, need not polish at working shaft, Clean, paste the work such as foil gauge and group bridge, advance so that the torsion moment on the scene test is easier OK.
(4) sensor can be made in standardization. The test mistake of having avoided on-the-spot subsides foil gauge to make bringing Difference.
(5) staking-out work of sensor can standardization. Present transducer calibration only needs sensing The device elastomer adds that corresponding its output valve that obtains of normal loading gets final product, so that measuring accuracy is carried greatly High. The error of having brought when having improved by original simulated calibration and similar conversion had been both:
The materials variances of a simulation axle and working shaft.
The material behavior difference of b simulation axle and working shaft. Such as processing technology heat treatment mode etc.
The error (D/d) of bringing when the physical dimension of c simulation axle and working shaft converts3。

Claims (6)

1. one kind is the torque sensor of one with the collector ring group, comprise collector ring (1), sensor (9), it is characterized in that: described collector ring (1) is made up of two semicircular ring, two semicircular ring collector ring connect by bolt and nut, each collector ring (1) is provided with four groups of conductive copper sheets (3) that are used for transmission signals, in the semicircular ring collector ring sensor (9) that is used to test moment of torsion is installed, described sensor (9) is by rectangle securement head (10), sensor elastomer (11), sensor stiff end (12) constitutes, be sensor elastomer (11) between rectangle securement head (10) and the sensor stiff end (12), be provided with resistance strain gage (14) above the sensor elastomer (11).
2. according to claim 1 and collector ring group is the torque sensor of one, it is characterized in that: described rectangle securement head (10) height H 1The outer diameter D of=tested working shaft-collector ring inside diameter D 1-(5 ~ 10mm); Width B 1The outer diameter D of=tested working shaft-collector ring inside diameter D 1-(20 ~ 30mm); Length L 1=B 1
3. according to claim 1 and collector ring group is the torque sensor of one, and it is characterized in that: described sensor elastomer (11) is a rectangle, its height H 2=H 1/ (2 ~ 3); Width B 2=H 2/ (2 ~ 3); Length L 2=collector ring length B-rectangle securement head length L 1-sensor stiff end length L 3-(5 ~ 10mm).
4. according to claim 1 and collector ring group is the torque sensor of one, it is characterized in that: described sensor stiff end (12) is cylindrical, its diameter D 3=H 1, length L 3=(5 ~ 10mm).
5. according to claim 1 and collector ring group is the torque sensor of one, and it is characterized in that: described semicircular ring collector ring is provided with the sensor mounting hole, and sensor is inserted in the location of sensor mounting hole and collector ring, and uses bolt M=B 1(1/2 ~ 1/3) is fixing, and the stiff end of sensor (12) is inserted in the fixed orifice of semicircular ring collector ring bottom.
6. according to claim 1 and collector ring group is the torque sensor of one, and it is characterized in that: described resistance strain gage (14) is formed by 4.
CN200910054986XA 2009-07-17 2009-07-17 Torque sensor integrated with collector ring group Expired - Fee Related CN101603867B (en)

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Application Number Priority Date Filing Date Title
CN200910054986XA CN101603867B (en) 2009-07-17 2009-07-17 Torque sensor integrated with collector ring group

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Application Number Priority Date Filing Date Title
CN200910054986XA CN101603867B (en) 2009-07-17 2009-07-17 Torque sensor integrated with collector ring group

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CN101603867A true CN101603867A (en) 2009-12-16
CN101603867B CN101603867B (en) 2011-03-30

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103080716A (en) * 2010-08-05 2013-05-01 三角力量管理株式会社 Torque sensor
CN104807573A (en) * 2015-04-25 2015-07-29 成都诚邦动力测试仪器有限公司 Torque sensor based on logic amplification processing
CN104819793A (en) * 2015-04-25 2015-08-05 成都诚邦动力测试仪器有限公司 Torque sensor with stable overvoltage protection function
CN104819792A (en) * 2015-04-25 2015-08-05 成都诚邦动力测试仪器有限公司 High-precision torque sensor
CN105466760A (en) * 2015-11-27 2016-04-06 中国科学院武汉岩土力学研究所 Hollow cylinder torsion shear strain measurement device for rock
CN105651475A (en) * 2016-01-11 2016-06-08 中国电力科学研究院 Protection device for high-altitude sensor
CN106546370A (en) * 2016-11-08 2017-03-29 上海三电汽车空调有限公司 A kind of method of real-time measurement automobile air conditioner compressor moment of torsion

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103080716A (en) * 2010-08-05 2013-05-01 三角力量管理株式会社 Torque sensor
CN103080716B (en) * 2010-08-05 2014-07-09 三角力量管理株式会社 Torque sensor
CN104807573A (en) * 2015-04-25 2015-07-29 成都诚邦动力测试仪器有限公司 Torque sensor based on logic amplification processing
CN104819793A (en) * 2015-04-25 2015-08-05 成都诚邦动力测试仪器有限公司 Torque sensor with stable overvoltage protection function
CN104819792A (en) * 2015-04-25 2015-08-05 成都诚邦动力测试仪器有限公司 High-precision torque sensor
CN105466760A (en) * 2015-11-27 2016-04-06 中国科学院武汉岩土力学研究所 Hollow cylinder torsion shear strain measurement device for rock
CN105466760B (en) * 2015-11-27 2017-11-14 中国科学院武汉岩土力学研究所 Rock hollow cylinder torsional shear strain gauge means
CN105651475A (en) * 2016-01-11 2016-06-08 中国电力科学研究院 Protection device for high-altitude sensor
CN105651475B (en) * 2016-01-11 2019-01-25 中国电力科学研究院 A kind of protective device of falling sensor
CN106546370A (en) * 2016-11-08 2017-03-29 上海三电汽车空调有限公司 A kind of method of real-time measurement automobile air conditioner compressor moment of torsion

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