CN103644837A - Tension and torsion double-component strain sensor - Google Patents
Tension and torsion double-component strain sensor Download PDFInfo
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- CN103644837A CN103644837A CN201310693936.2A CN201310693936A CN103644837A CN 103644837 A CN103644837 A CN 103644837A CN 201310693936 A CN201310693936 A CN 201310693936A CN 103644837 A CN103644837 A CN 103644837A
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Abstract
The invention discloses a tension and torsion double-component strain sensor and relates to the technical field of sensors, particularly to the improving technology of strain sensors. The tension and torsion double-component strain sensor comprises a lower threaded flange connector, an upper threaded flange connector and bearing columns; both the lower threaded flange connector and the upper threaded flange connector are of a cylindrical structure; the bottom surface of the lower threaded flange connector and the top surface of the upper threaded flange connector are provided with transverse grooves and longitudinal grooves respectively, and the transverse grooves are perpendicular to the longitudinal grooves; the four bearing columns are vertically arranged and connected between the lower threaded flange connector and the upper threaded flange connector and evenly distributed on the circumference which takes the axis of the lower threaded flange connector as the center; a strain sheet for measuring axial tension is adhered to the center of the four bearing columns; strain sheets for measuring torsion are adhered to the roots of the four bearing columns. The tension and torsion double-component strain sensor solves the problems of poor unbalance loading resisting capacity and large position errors of sensors due to influence of the processing precision during the mechanical machining of elastomers of existing strain sensors.
Description
Technical field
The present invention relates to sensor technical field, be specifically related to the improvement technology of strain transducer.
Background technology
Strain gauge transducer is a kind of sensor of the strain that distortion produces based on measurement object receiving force.Resistance strain gage is its sensing element the most often adopting.It is a kind ofly the variation of strain on mechanical component can be converted to the sensing element of resistance variations.
The impact that existing strain transducer brings due to the machining precision of elastic body in machining, makes the offset load resistance of sensor poor, and azimuthal error is large.
Summary of the invention
The invention provides the two component strain sensors of a kind of tension-torsion, the invention solves the impact that existing strain transducer brings due to the machining precision of elastic body in machining, make the offset load resistance of sensor poor, the problem that azimuthal error is large.
For addressing the above problem, the present invention adopts following technical scheme: the two component strain sensors of a kind of tension-torsion, comprise lower threaded flange joint F1, upper threaded flange joint F2 and bolster stake F3; Lower threaded flange joint F1 and upper threaded flange joint F2 are cylindrical structural, and upper threaded flange joint F2 and lower threaded flange joint F1 dead in line are also setting up and down; In the bottom surface of lower threaded flange joint F1 and the end face of upper threaded flange joint F2, be respectively arranged with transverse groove F5 and cannelure F4, transverse groove F5 is vertical with cannelure F4; Four bolster stake F3 vertically arrange and are connected between lower threaded flange joint F1 and upper threaded flange joint F2, and four bolster stake F3 are distributed on the circumference that lower threaded flange joint F1 axis is the center of circle; In the middle of four bolster stake F3, be pasted with the foil gauge of measuring axial tension, at the root of four bolster stake F3, be pasted with the foil gauge of measurement moment of torsion.
Further, the two component strain sensors of a kind of tension-torsion of the present invention also have following features: between bolster stake F3 central cross-section and the longitudinal tangent plane of lower threaded flange joint F1, shape in angle of 45 degrees.
Further, the two component strain sensors of a kind of tension-torsion of the present invention also have following features: the centre at two opposite faces of each bolster stake F3 is respectively pasted with the foil gauge of a normal strain and the foil gauge of a negative strain.
Further, the two component strain sensors of a kind of tension-torsion of the present invention also have following features: the root in a side of each bolster stake F3 is pasted with the foil gauge of lower strain, are pasted with the foil gauge of negative strain in the relative another one side of the foil gauge with this normal strain.
Further, the two component strain sensors of a kind of tension-torsion of the present invention also have following features: in the bottom surface of lower threaded flange joint F1 and the end face of upper threaded flange joint F2, have respectively four threaded hole F6.
Further, the two component strain sensors of a kind of tension-torsion of the present invention also have following features: four threaded hole F6 are distributed on the circumference that lower threaded flange joint F1 or upper threaded flange joint F2 axis are the center of circle; Between the radial centre lines of threaded hole F6 and longitudinal tangent plane, shape in angle of 45 degrees.
Advantage of the present invention: sensor can utilize an elastic body bearing tension, torque parameter simultaneously.By change structure size, when can realize the pulling force of (5～100) kN, (50～1000) N.m and two parameters of moment of torsion, measure.Sensor elastomer adopts four-column type (four bolster stakes) structure, can reduce greatly the impact bringing due to the machining precision of elastic body in machining, can improve the offset load resistance of sensor, reduces azimuthal error.Also to have dynamic response frequency high for this sensor simultaneously, and volume is little, lightweight, and the advantage such as be easy to carry.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the C-C cut-open view of Fig. 1;
Fig. 3 is that the D of Fig. 1 is to partial view;
Fig. 4 is that the A of Fig. 1 is to view;
Fig. 5 is that the B of Fig. 1 is to view;
Fig. 6 is strain gauge adhesion position view of the present invention;
Fig. 7 is the bridge diagram figure that the foil gauge of axial tension measurement forms;
Fig. 8 is the bridge diagram figure that the foil gauge of torque measurement forms.
Symbol description in figure: lower threaded flange joint F1, upper threaded flange joint F2, bolster stake F3, cannelure F4, transverse groove F5, threaded hole F6, foil gauge 1-24.
Embodiment
With best embodiment, the present invention is described in detail below
.
As shown in Fig. 1-6, the two component strain sensors of a kind of tension-torsion, comprise lower threaded flange joint F1, upper threaded flange joint F2 and bolster stake F3; Lower threaded flange joint F1 and upper threaded flange joint F2 are cylindrical structural, and upper threaded flange joint F2 and lower threaded flange joint F1 dead in line are also setting up and down; In the bottom surface of lower threaded flange joint F1 and the end face of upper threaded flange joint F2, be respectively arranged with transverse groove F5 and cannelure F4, transverse groove F5 is vertical with cannelure F4; Four bolster stake F3 vertically arrange and are connected between lower threaded flange joint F1 and upper threaded flange joint F2, and four bolster stake F3 are distributed on the circumference that lower threaded flange joint F1 axis is the center of circle; In the middle of four bolster stake F3, be pasted with the foil gauge of measuring axial tension, at the root of four bolster stake F3, be pasted with the foil gauge of measurement moment of torsion.
Between bolster stake F3 central cross-section and the longitudinal tangent plane of lower threaded flange joint F1, shape in angle of 45 degrees.
Centre at two opposite faces of each bolster stake F3 is respectively pasted with the foil gauge of a normal strain and the foil gauge of a negative strain.
Root in a side of each bolster stake F3 is pasted with the foil gauge of lower strain, is pasted with the foil gauge of negative strain in the relative another one side of the foil gauge with this normal strain.
In the bottom surface of lower threaded flange joint F1 and the end face of upper threaded flange joint F2, there are respectively four threaded hole F6.
Four threaded hole F6 are distributed on the circumference that lower threaded flange joint F1 or upper threaded flange joint F2 axis are the center of circle; Between the radial centre lines of threaded hole F6 and longitudinal tangent plane, shape in angle of 45 degrees.
Sensor transmits pulling force parameter by upper and lower threaded flange joint, and upper and lower threaded flange joint design becomes symmetrical cross-shaped groove structure to carry out transmitting torque.Sensor all posts 6 foil gauges on every bolster stake, has 24 foil gauges, forms 2 electric bridges, has 2 tunnel output signals, and a road is tension measurement signal, and another road is torque measurement signal.Metering circuit all adopts the symmetrical full bridge measurement circuit of direct current, for bridge voltage, is (5～10) V.Wherein, axial tension (Z direction) is measured by 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 foil gauges of pasting in four bolster stake intermediate surface, wherein the 1,3,5,7,9,11,13, the 15th, normal strain, 2, the 4,6,8,10,12,14, the 16th, negative strain, the bridge diagram of composition is as shown in Figure 7.Moment of torsion (M) is measured by sticking on 17,18,19,20,21,22,23,24 8 foil gauges of four bolster stake roots, and wherein the 17,19,21, the 23rd, normal strain, the 18,20,22, the 24th, negative strain, the bridge diagram of composition is as shown in Figure 8.
Finally it should be noted that: obviously, above-described embodiment is only for example of the present invention is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being amplified out thus or change are still among protection scope of the present invention.
Claims (6)
1. the two component strain sensors of tension-torsion, is characterized in that, comprise lower threaded flange joint (F1), upper threaded flange joint (F2) and bolster stake (F3); Lower threaded flange joint (F1) and upper threaded flange joint (F2) are cylindrical structural, upper threaded flange joint (F2) and lower threaded flange joint (F1) dead in line setting up and down; In the bottom surface of lower threaded flange joint (F1) and the end face of upper threaded flange joint (F2), be respectively arranged with transverse groove (F5) and cannelure (F4), transverse groove (F5) is vertical with cannelure (F4); Four bolster stakes (F3) vertically arrange and are connected between lower threaded flange joint (F1) and upper threaded flange joint (F2), and four bolster stakes (F3) are distributed on the circumference that lower threaded flange joint (F1) axis is the center of circle; In the middle of four bolster stakes (F3), be pasted with the foil gauge of measuring axial tension, at the root of four bolster stakes (F3), be pasted with the foil gauge of measurement moment of torsion.
2. two component strain sensors of a kind of tension-torsion as claimed in claim 1, is characterized in that, between the longitudinal tangent plane of bolster stake (F3) central cross-section and lower threaded flange joint (F1), shape in angle of 45 degrees.
3. two component strain sensors of a kind of tension-torsion as claimed in claim 1, is characterized in that, in the centre of two opposite faces of each bolster stake (F3), are respectively pasted with the foil gauge of a normal strain and the foil gauge of a negative strain.
4. two component strain sensors of a kind of tension-torsion as claimed in claim 1, it is characterized in that, root in the side of each bolster stake (F3) is pasted with the foil gauge of lower strain, is pasted with the foil gauge of negative strain in the relative another one side of the foil gauge with this normal strain.
5. two component strain sensors of a kind of tension-torsion as claimed in claim 1, is characterized in that there are respectively four threaded holes (F6) in the bottom surface of lower threaded flange joint (F1) and the end face of upper threaded flange joint (F2).
6. two component strain sensors of a kind of tension-torsion as claimed in claim 5, is characterized in that, four threaded holes (F6) are distributed on the circumference that lower threaded flange joint F1 or upper threaded flange joint (F2) axis are the center of circle; Between the radial centre lines of threaded hole (F6) and longitudinal tangent plane, shape in angle of 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693936.2A CN103644837A (en) | 2013-12-18 | 2013-12-18 | Tension and torsion double-component strain sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310693936.2A CN103644837A (en) | 2013-12-18 | 2013-12-18 | Tension and torsion double-component strain sensor |
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| CN103644837A true CN103644837A (en) | 2014-03-19 |
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| CN201310693936.2A Pending CN103644837A (en) | 2013-12-18 | 2013-12-18 | Tension and torsion double-component strain sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545283A (en) * | 2016-01-27 | 2016-05-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing experimental data collection system |
| CN106768537A (en) * | 2017-03-15 | 2017-05-31 | 北京中航兴盛测控技术有限公司 | High-performance torque sensor based on Sputtering Thinfilm Technology |
| CN111811709A (en) * | 2020-07-16 | 2020-10-23 | 内蒙古第一机械集团股份有限公司 | Four-column torque sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445036A (en) * | 1994-06-15 | 1995-08-29 | The University Of British Columbia | Torque sensor |
| CN200944088Y (en) * | 2006-07-07 | 2007-09-05 | 长春仟邦测试设备有限公司 | Tension torsion complex sensor |
| CN101701856A (en) * | 2009-11-30 | 2010-05-05 | 重庆大学 | Combined tension-torsion sensor with high tension-torsion ratio |
| CN103364115A (en) * | 2013-07-02 | 2013-10-23 | 中国矿业大学 | Tension and torque composite measuring device |
| CN203893813U (en) * | 2013-12-18 | 2014-10-22 | 黑龙江华安精益计量技术研究院有限公司 | Tension-torsion double-component strain sensor |
-
2013
- 2013-12-18 CN CN201310693936.2A patent/CN103644837A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445036A (en) * | 1994-06-15 | 1995-08-29 | The University Of British Columbia | Torque sensor |
| CN200944088Y (en) * | 2006-07-07 | 2007-09-05 | 长春仟邦测试设备有限公司 | Tension torsion complex sensor |
| CN101701856A (en) * | 2009-11-30 | 2010-05-05 | 重庆大学 | Combined tension-torsion sensor with high tension-torsion ratio |
| CN103364115A (en) * | 2013-07-02 | 2013-10-23 | 中国矿业大学 | Tension and torque composite measuring device |
| CN203893813U (en) * | 2013-12-18 | 2014-10-22 | 黑龙江华安精益计量技术研究院有限公司 | Tension-torsion double-component strain sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545283A (en) * | 2016-01-27 | 2016-05-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing experimental data collection system |
| CN106768537A (en) * | 2017-03-15 | 2017-05-31 | 北京中航兴盛测控技术有限公司 | High-performance torque sensor based on Sputtering Thinfilm Technology |
| CN111811709A (en) * | 2020-07-16 | 2020-10-23 | 内蒙古第一机械集团股份有限公司 | Four-column torque sensor |
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Application publication date: 20140319 |