CN1047664C - Stress-strain type torque transducer - Google Patents
Stress-strain type torque transducer Download PDFInfo
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- CN1047664C CN1047664C CN93117185A CN93117185A CN1047664C CN 1047664 C CN1047664 C CN 1047664C CN 93117185 A CN93117185 A CN 93117185A CN 93117185 A CN93117185 A CN 93117185A CN 1047664 C CN1047664 C CN 1047664C
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- measured axis
- torque sensor
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Abstract
The present invention relates to a stress-strain type torque transducer which belongs to the field of a torque measuring device. The torque transducer is composed of a pair of clamping chucks, a pair of force measuring rods, a signal detecting device, etc. The present invention has the advantages of strong capability of resisting external interference, high measuring precision, various structure forms, high frequency response, etc.; besides, the present invention is suitable for dynamic measurement. The present invention can be widely applied to the departments of national defence, metallurgy, mine, oil drilling, automobiles, etc. The present invention has obvious social and economic benefits.
Description
The present invention relates to the torque-measuring apparatus field, especially be directly installed on the torque-measuring apparatus that carries out torque measurement on the measured workpiece.
In the prior art, measure the torque except that the type vibration wire torque meter can directly be contained on the transmission shaft of steamer, the torque sensor of other type all is serially connected with between the transmission shaft by ring flange and measures.Be on axle, to paste foil gauge directly in a kind of common method of measuring torque on the transmission shaft, obtain strain signal, calculate torque value according to the physical dimension and the material character of axle then by collector ring or noncontact mode, adopt this method measuring accuracy low, the cost height.
Along with the development of automatic technology and raising that energy-conservation aspect is required, high precision torque measurement sensor on all kinds of transmission shafts more and more needs directly to be installed.
The utility model patent " formula that is installed torque sensor " that deviser of the present invention obtained in 1988 (application number: 87213769) can partly address the above problem, but can not apply widely because of the restriction of being measured signal transmission form and structural manufacturing process.
The object of the present invention is to provide a kind of measurement mechanism that can measure and have higher measured precision easily in real time to the torque of all kinds transmission shaft, this apparatus structure is simple, uses convenient and reliable.
The said stress modification of the present invention torque sensor transition, by preceding, rear end cap (2), (2 '), shell (22), place the left and right sides chuck (4) in the shell (22), (9), symmetry is positioned at left and right sides chuck (4), (9) dynamometer link on (3), (3 ') and be installed on the signal transmitting apparatus on the left chuck (4) and be installed on clamping hole (23) on the right chuck (9), the adjustment screw (10) of (23 ') both sides, (10 ') are formed, it is characterized in that, said dynamometer link (3), (3 ') threaded end and left chuck (4) are conical contact, and be fixed on the left chuck (4), their other end places the clamping hole (23) of right chuck (9) with the form of semi-girder, in (23 '), and by the adjustment screw (10) of clamping hole both sides, keep in touch (10 '), left and right sides chuck (4), (9) be fastened on the measured axis (1).The cross sectional shape of dynamometer link (3), (3 ') bracketed part is I-shaped.In the testing process of shaft torque, when the rotating speed of measured axis during less than 800 rev/mins, said signal transmitting apparatus is made up of the slip ring (6), carbon brush (8) and the carbon brush holder (7) that are installed on the left chuck (4); When the rotating speed of measured axis during greater than 800 rev/mins, said signal transmitting apparatus is a telemetering package, and this telemetering package comprises emitter, receiving trap, signal processing circuit and signal output apparatus.The type of attachment of said left and right sides chuck and measured axis can be a shaft coupling type, also can be the formula of being installed, under the shaft coupling type type of attachment, left and right sides chuck (4), (9) be installed on the measurement axis (measured axis 1), the both ends of measurement axis (1) have keyway, so that be connected with measured axis; Under the formula type of attachment that is installed, two semicircle snap rings (19), (21) are set with the chucking measured axis respectively in being divided into the left and right sides chuck (14) of two parts, (18), 6 uniform rollers (12) respectively are installed on the end cap of the left and right sides.The end face of said adjustment screw (10), (10 ') is a circular arc camber.
This torque sensor provided by the invention, anti-external interference ability is strong, the measuring accuracy height, version is various, have higher frequency response and be suitable for the advantage of kinetic measurement, can be widely used in fields such as national defence, metallurgy, mine, oil drilling, automobile and large gate, have remarkable economic efficiency and social benefit.
Drawings and Examples:
Fig. 1: shaft coupling type torque sensor structural drawing of the present invention.
The A-A cut-open view of Fig. 2: Fig. 1.
Fig. 3: the present invention's formula torque sensor structural drawing that is installed.
The present invention is based on so a kind of principle: two chucks, worker are installed in two positions at a distance of fixed length on measured axis When part was turned round, this produced a relative angular displacement to chuck, so that the responsive part of elasticity that is clamped between them produces Flexural deformation is pasted semiconductor gauge in the appropriate location of the responsive part tension of elasticity and pressurized, and strain is turned to Be changed to resistance variations, adopt the doube bridge complementary circuit, signal is exported.
Embodiment 1:
Figure 1 shows that the shaft coupling type stress-strain type torque transducer: a left side, right chuck (4), (9) be installed on the measurement axis (measured axis 1), the bellmouth that a pair of symmetry is arranged on the left side chuck (4), the dynamometer link (3) of two symmetric arrangement is installed in the symmetry taper hole, (3 '), dynamometer link (3), (3 ') front end is fixed on the left chuck (4) by nut and is the semi-girder state, dynamometer link (3), the cross sectional shape of the bracketed part of (3 ') is I-shaped, paste foil gauge on it, form double-way circuit, slip ring (6) transports out measured signal simultaneously for circuit provides operating voltage.
The other end of dynamometer link (3), (3 ') is kept in touch by two adjustment screws (10), (10 '), place the symmetrical manhole (see figure 2) of right chuck (9), the end face of adjusting screw (10), (10 ') is a circular arc camber, and it is contacted for point with the contact portion of dynamometer link (3), (3 ').Have an axial narrow slit on right chuck (9) inner hole wall, also have a fastening screw on it, do axially and radially to adjust so that right chuck (9) can be gone up in measurement axis (1), and can right chuck be fastened on the measurement axis (1) with screw.
Each carbon brush screw on the carbon brush holder (7) can be adjusted the size of spring force.When the rotating speed of measured axis during greater than 800 rev/mins, carbon brush holder can be taken off, replace telemetering package and proceed to detect.
Embodiment 2:
Fig. 3 is the formula stress-strain type torque transducer that is installed.
Left side chuck (14) is formed by two semi-circular portions with right chuck (18), their endoporus matches with the snap ring (19) of two semicircles, the inwall of snap ring (19) is clamped on the measured axis (20), and the boring on the version of dynamometer link (15), left and right chuck (14), (18) or the version of fluting is identical with shaft coupling type all.Each uniform 6 roller (12) on the end cap of the left and right sides have the raceway that matches with roller (12) on left and right chuck (14), (18).Same slip ring (16) also is made up of two parts, be connected together with left chuck (14) respectively, when the rotating speed of measured axis (20) is higher than 800 rev/mins, then carbon brush holder (17) and roller (12) removed, replace with telemetering package, and shell is fastened on the chuck with screw.
When using the shaft coupling type stress-strain type torque transducer, the ring flange that cooperates with it can be installed at measurement axis (measured axis 1) two ends, sensor string is connected to measures its level of torque between the measured axis.
When use is installed the formula stress-strain type torque transducer, elder generation is according to the size of measured axis diameter, choose snap ring (19), (21) of corresponding specification and match, respectively left chuck (14) and right chuck (18) are installed on the appropriate location of measured axis with left and right chuck (14), (18).The diameter of snap ring (19), (21) has different specifications, changes snap ring, the torque that just can measure the transmission shaft of the different diameters of axle.
Claims (6)
1, a kind of stress-strain type torque transducer, by preceding, rear end cap (2), (2 ') shell (22), place the left side in the shell (22), right chuck (4), (9), symmetry is positioned at left and right sides chuck (4), (9) dynamometer link on (3), (3 ') and be installed on the signal transmitting apparatus on the left chuck (4) and be installed on clamping hole (23) on the right chuck (9), the adjustment screw (10) of (23 ') both sides, (10 ') are formed, the invention is characterized in, said dynamometer link (3), (3 ') threaded end and left chuck (4) are conical contact, and be fixed on the left chuck (4), the other end places the clamping hole (23) of right chuck (9) with the form of semi-girder, in (23 '), and by the adjustment screw (10) of clamping hole both sides, keep in touch (10 '), adjusts screw (10), the end face of (10 ') is a circular arc camber left and right sides chuck (4), (9) be fastened on by on the axle (1).
2, torque sensor according to claim 1 is characterized in that, the cross sectional shape of said dynamometer link (3), (3 ') bracketed part is an I shape.
3, torque sensor according to claim 1 is characterized in that, said signal transmitting apparatus is made up of the slip ring (6), carbon brush (8) and the carbon brush holder (7) that are installed on the left chuck (4), and the measurement of the rotating speed that is used for measured axis during less than 800 rev/mins.
4, torque sensor according to claim 1, it is characterized in that, said signal transmitting apparatus is a telemetering package, and this telemetering package comprises emitter, receiving trap, signal processing circuit and signal output apparatus, and the measurement of the rotating speed that is used for measured axis during greater than 800 rev/mins.
5, torque sensor according to claim 1, it is characterized in that, said left and right sides chuck (4), (9) are shaft coupling types with the type of attachment of measured axis, promptly left and right chuck (4), (9) are installed on the measurement axis (measured axis 1), the both ends of measurement axis (1) have keyway, so that be connected with measured axis.
6, torque sensor according to claim 1, it is characterized in that, said left and right sides chuck (14), (18) are the formulas of being installed with the type of attachment of measured axis, two semicircle snap rings (19), (21) promptly are set with the chucking measured axis respectively in being divided into the left and right sides chuck (14) of two parts, (18), 6 uniform rollers (12) respectively are installed on the end cap of the left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93117185A CN1047664C (en) | 1993-09-16 | 1993-09-16 | Stress-strain type torque transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93117185A CN1047664C (en) | 1993-09-16 | 1993-09-16 | Stress-strain type torque transducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1100521A CN1100521A (en) | 1995-03-22 |
| CN1047664C true CN1047664C (en) | 1999-12-22 |
Family
ID=4991914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93117185A Expired - Fee Related CN1047664C (en) | 1993-09-16 | 1993-09-16 | Stress-strain type torque transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047664C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226049B (en) * | 2013-04-11 | 2014-12-24 | 山西晋城无烟煤矿业集团有限责任公司 | Backstop torque detection method and device of backstop carrier roller |
| CN105784226A (en) * | 2016-03-25 | 2016-07-20 | 西南石油大学 | New method of accurately measuring and monitoring working torque of rotation shaft in real time |
| CN109655270B (en) * | 2018-10-29 | 2021-06-22 | 中国航发贵阳发动机设计研究所 | Device capable of measuring torque at high rotating speed by cantilever installation |
| CN115127709A (en) * | 2022-08-30 | 2022-09-30 | 南通市航天机电自动控制有限公司 | Clamping type torque sensor with high measurement precision |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213769U (en) * | 1987-09-29 | 1988-08-03 | 东北重型机械学院 | Assembling caliper type torque transducer |
| CN2114152U (en) * | 1992-01-17 | 1992-08-26 | 湖南仪器仪表总厂动力测试仪器厂 | On-line detecting torque sensor |
-
1993
- 1993-09-16 CN CN93117185A patent/CN1047664C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213769U (en) * | 1987-09-29 | 1988-08-03 | 东北重型机械学院 | Assembling caliper type torque transducer |
| CN2114152U (en) * | 1992-01-17 | 1992-08-26 | 湖南仪器仪表总厂动力测试仪器厂 | On-line detecting torque sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1100521A (en) | 1995-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 19991222 Termination date: 20091016 |