CN105547549A - Non-contact strain-type shaft coupler torque sensor based on transformer principle - Google Patents
Non-contact strain-type shaft coupler torque sensor based on transformer principle Download PDFInfo
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- CN105547549A CN105547549A CN201610035334.1A CN201610035334A CN105547549A CN 105547549 A CN105547549 A CN 105547549A CN 201610035334 A CN201610035334 A CN 201610035334A CN 105547549 A CN105547549 A CN 105547549A
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- torque
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
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Abstract
The invention discloses a non-contact strain-type shaft coupler torque sensor based on a transformer principle, and belongs to the technical field of mechanical rotation and dynamic torque measurement. A to-be-solved technical problem is to provide a novel non-contact transmission method and structure for a torque measurement signal and torque measurement sensitive single-piece power supply and signal collection system, and to facilitate the collection of the torque measurement information of a transmission mechanical shaft. A stationary coil sleeves a stationary iron core, and a rotating coil sleeves a rotating iron core. An air gap is formed between the stationary coil and the rotating coil, thereby forming a magnetic loop and a coil supporting skeleton of a transformer structure. An end face of a torque measurement disc is provided with a torque measurement groove and a torque sensor boss. A torque strain testing unit is disposed on the torque sensor boss. A first connecting disc boss and the torque measurement groove are installed together in a coupling manner, and the torque sensor boss and a second connecting disc groove are installed together in a coupling manner. The sensor is suitable for the torque measurement of various types of transmission system rotating shafts, is convenient to install, is simple in structure, and is high in installation precision.
Description
Technical field
The present invention relates to a kind of coupling torque sensor, be specifically related to a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle, belong to mechanical drive and dynamic torque field of measuring technique.
Background technology
Along with the development of industrial technology, and the demand of scientific research, the measurement of torque is more and more extensive with application, the large measurement to various gearing shaft power, little to various throw to the accurate assurance of torsion, all need to carry out measurement mechanism effectively to various torque.People are usually through the measurement to rotating machinery shaft torque and rotational speed, thus reach ground kinematic train and carry out the object that controls, or obtain the output power of main transmission end or the power input from driving end, convenient further torque output terminal or mechanical hook-up corresponding to torque input end carried out study and optimized, as in motor experiment, need the Driving Torque being accurately convenient for measuring out tested motor, thus the mechanical property of tested motor and efficiency characteristic are studied.
Transformer is the electromagnetic and mechanical device based on electromagnetic induction principle work, and it can complete the conversion of multi-form electric energy (different electric pressure), thus carries out the transmission of energy.Utilize this principle, the wireless transmission of torque sensor sensing unit electric power supply and dtc signal can be realized, promote convenience and the accuracy of the torque measurement of gearing axle.
Summary of the invention
Give hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
Given this, the invention provides noncontact transmission method and the structure of a kind of novel torque measurement signal and the responsive single-piece Power supply of torque measurement and signal acquiring system, facilitate the collection of the torque measurement information of gearing axle.
According to an aspect of the present invention, provide a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle, be moment information transmission spread out of and measurement module power supply supply carry out contactless transmission by the coupling of primary transformer coil and secondary coil, the concrete structure of the noncontact strain-type shaft coupling torque sensor based on transformer principle of the present invention is:
It comprises the first coupling shaft, the first terminal pad, the first terminal pad boss, torque measurement dish, the second terminal pad groove, the second terminal pad and the second coupling shaft; Described first terminal pad, torque sensor dish and the second terminal pad arranged in co-axial alignment successively;
Described torque measurement dish comprises torque measurement groove, static iron core, stationary coil, revolving coil, rotary core, torque sensor boss and torque stress test unit, and described stationary coil is enclosed within static iron core, and revolving coil is enclosed within rotary core; Air gap is formed, the magnetic circuit loop of composition transformer device structure and coil support skeleton between static iron core and rotary core;
Described first coupling shaft is fixedly connected with the first terminal pad, second coupling shaft is fixedly connected with the second terminal pad, the end face of the first terminal pad is provided with the first terminal pad boss, the end face of the second terminal pad is provided with the second terminal pad groove, the left end face of torque measurement dish is provided with torque measurement groove, the its right end face of torque measurement dish is provided with torque sensor boss, torque stress test cellular installation is on torque sensor boss, first terminal pad boss and the coupling of torque measurement groove are installed together, torque sensor boss and the coupling of the second terminal pad groove are installed together.
Further: described first terminal pad boss is cruciform boss; Torque measurement groove is cross groove.
Further: described torque sensor boss is cruciform boss; Second terminal pad groove is cross groove.
Further: described stationary coil and revolving coil are coaxially arranged in juxtaposition.Described static iron core, stationary coil, rotary core, revolving coil form importing into and spreading out of system of non-contact torque information and torque measurement sensing unit power supply.
Further: one made by described rotary core and torque sensor boss.
Further: one made by described first terminal pad and the first terminal pad boss.
Further: torque stress test unit is metal strain plate, surface acoustic wave sensor, acoustic wave sensor or counter Magnetostrictive torque transducer.
A kind of effect reached based on the noncontact strain-type shaft coupling torque sensor of transformer principle that the present invention proposes is: the present invention is on the basis in conjunction with existing strain gauge torque transducer measuring unit, propose based on the non-contact torque information of transformer principle and importing into and spreading out of structure and method of torque measurement sensing unit power supply, because torque stress test unit has polytype available, as: metal strain plate, surface acoustic wave sensor, acoustic wave sensor, counter Magnetostrictive torque transducer etc., these are all the torque measurement sensitive elements of flake structure, easily can be pasted onto torque measurement disc spins boss correspondence position unshakable in one's determination, and torque calculation module can be arranged on the position away from torque sensor, therefore, the non-contact torque measurement mechanism of this structure can be designed to miniaturization, and shaft coupling integration can be designed to.After transformer iron core structure is improved, the wireless transmission of transformer primary side winding and vice-side winding electric energy and signal can be realized.Based on transformer principle, the air gap that can cross increases transformer primary side winding iron core and vice-side winding iron core is isolated, reach the function of transmitting-receiving torque measurement signal, thus realize non-contact torque measurement, the present invention is applicable to the torque measurement of all kinds of kinematic train rotating shaft, and has easy for installation, that structure is simple, installation accuracy is high feature.
Accompanying drawing explanation
Fig. 1 is a kind of according to an embodiment of the invention one-piece construction exploded view of the noncontact strain-type shaft coupling torque sensor based on transformer principle;
Fig. 2 is the B direction view of Fig. 1;
Fig. 3 is the A direction view of Fig. 1;
Fig. 4 is the C direction view of Fig. 1;
Fig. 5 is the D direction view of Fig. 1;
In figure: 1-first coupling shaft; 2-first terminal pad; 3-first terminal pad boss; 4-torque measurement groove; The static iron core of 5-; 6-stationary coil; 7-revolving coil; 8-rotary core; 9-torque sensor boss; 10-torque stress test unit; 11-second terminal pad groove; 12-second terminal pad; 13-second coupling shaft.
Embodiment
To be described one exemplary embodiment of the present invention by reference to the accompanying drawings hereinafter.For clarity and conciseness, all features of actual embodiment are not described in the description.But, should understand, must make a lot specific to the decision of embodiment in the process of any this practical embodiments of exploitation, to realize the objectives of developer, such as, meet those restrictive conditions relevant to system and business, and these restrictive conditions may change to some extent along with the difference of embodiment.In addition, although will also be appreciated that development is likely very complicated and time-consuming, concerning the those skilled in the art having benefited from the disclosure of invention, this development is only routine task.
At this, also it should be noted is that, in order to avoid the present invention fuzzy because of unnecessary details, illustrate only in the accompanying drawings with according to the closely-related apparatus structure of the solution of the present invention and/or treatment step, and eliminate other details little with relation of the present invention.
As shown in Figures 1 to 5, The embodiment provides a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle, concrete structure is:
It comprises the first coupling shaft 1, first terminal pad 2, first terminal pad boss 3, torque measurement dish, the second terminal pad groove 11, second terminal pad 12 and the second coupling shaft 13; Described first terminal pad 2, torque sensor dish and the second terminal pad 12 arranged in co-axial alignment successively;
Described torque measurement dish comprises torque measurement groove 4, static unshakable in one's determination 5, stationary coil 6, revolving coil 7, rotary core 8, torque sensor boss 9 and torque stress test unit 10, described stationary coil 6 is enclosed within static unshakable in one's determination 5, and revolving coil 7 is enclosed within rotary core 8; Air gap is formed, the magnetic circuit loop of composition transformer device structure and coil support skeleton between static unshakable in one's determination 5 and rotary core 8;
Described first coupling shaft 1 is fixedly connected with the first terminal pad 2, second coupling shaft 13 is fixedly connected with the second terminal pad 12, the end face of the first terminal pad 2 is provided with the first terminal pad boss 3, the end face of the second terminal pad 12 is provided with the second terminal pad groove 11, the left end face of torque measurement dish is provided with torque measurement groove 4, the its right end face of torque measurement dish is provided with torque sensor boss 9, torque stress test unit 10 is arranged on torque sensor boss 9, first terminal pad boss 3 and torque measurement groove 4 coupling are installed together, torque sensor boss 9 and the coupling of the second terminal pad groove 11 are installed together.
More specifically: described first terminal pad boss 3 is cruciform boss; Torque measurement groove 4 is cross groove.
More specifically: described torque sensor boss 9 is cruciform boss; Second terminal pad groove 11 is cross groove.
More specifically: described stationary coil 6 and revolving coil 7 are coaxially arranged in juxtaposition.Described static iron core, stationary coil, rotary core, revolving coil form importing into and spreading out of system of non-contact torque information and torque measurement sensing unit power supply.
More specifically: described rotary core 8 makes one with torque sensor boss 9.
More specifically: one made by described first terminal pad 2 and the first terminal pad boss 3.
More specifically: torque stress test unit 10 is metal strain plate, surface acoustic wave sensor, acoustic wave sensor or counter Magnetostrictive torque transducer.
Torque measurement dish and the first terminal pad 2, the bump type interlocking structure formed between second terminal pad 12, when tested motor output shaft drives the first coupling shaft 1 to rotate, because the first coupling shaft 1 is fixedly connected with the first terminal pad 2, the rotary torque that first coupling shaft 1 obtains directly is passed to the first terminal pad 2, torque measurement dish and the first terminal pad 2, second terminal pad 12 to be connected coupling by interlocking, in the transmission of torque process of torque measurement dish and the second terminal pad 12, torque sensor STRESS VARIATION can be caused, and calculated by data and analyze, and then obtain the size of transmitting torque.The present invention has simplified the structure that torque sensor is installed, and eliminates the coupler structure of conventional mounting form, and then improves motor to stability and the validity of dragging torque measurement system in experiment, easy for installation, and axle center is unified, measures accurately.
A kind of principle of work of the noncontact strain-type shaft coupling torque sensor based on transformer principle: power transmission end and the first coupling shaft 1 are connected and fixed, torque measurement groove 4 in the left end face of torque measurement dish and the first terminal pad boss 3 on the first terminal pad 2 are of coupled connections, power interface receiving end is connected with the second coupling shaft 13, second terminal pad groove 11 of the second terminal pad 12 is of coupled connections with the torque sensor boss 9 in its right end face of torque measurement dish, thus make power import into from driving end by main transmission end, at power by drive shaft system transmission process, dynamic torque is tested by the torque stress test unit 10 be arranged on torque sensor boss 9, the dtc signal measured of torque stress test unit 10 is as the input signal of revolving coil 7, revolving coil 7 is coupled with stationary coil 6 by magnetic field, dtc signal is imported into stationary coil 6, complete the noncontact transmission of dtc signal.After power supply needed for torque stress test unit 10 is inputted by stationary coil 6, through importing torque measurement dish into supply torque stress test unit 10 with being coupled of revolving coil 7.
Although disclosed embodiment as above, the embodiment that its content just adopts for the ease of understanding technical scheme of the present invention, is not intended to limit the present invention.Technician in any the technical field of the invention; under the prerequisite not departing from disclosed core technology scheme; any amendment and change can be made in the form implemented and details; but the protection domain that the present invention limits, the scope that still must limit with appending claims is as the criterion.
Claims (7)
1., based on a noncontact strain-type shaft coupling torque sensor for transformer principle, it comprises the first coupling shaft (1), the first terminal pad (2), the first terminal pad boss (3), torque measurement dish, the second terminal pad groove (11), the second terminal pad (12) and the second coupling shaft (13); Described first terminal pad (2), torque sensor dish and the second terminal pad (12) arranged in co-axial alignment successively; It is characterized in that:
Described torque measurement dish comprises torque measurement groove (4), static iron core (5), stationary coil (6), revolving coil (7), rotary core (8), torque sensor boss (9) and torque stress test unit (10), described stationary coil (6) is enclosed within static iron core (5), and revolving coil (7) is enclosed within rotary core (8); Air gap is formed, the magnetic circuit loop of composition transformer device structure and coil support skeleton between static iron core (5) and rotary core (8);
Described first coupling shaft (1) is fixedly connected with the first terminal pad (2), second coupling shaft (13) is fixedly connected with the second terminal pad (12), the end face of the first terminal pad (2) is provided with the first terminal pad boss (3), the end face of the second terminal pad (12) is provided with the second terminal pad groove (11), the left end face of torque measurement dish is provided with torque measurement groove (4), the its right end face of torque measurement dish is provided with torque sensor boss (9), torque stress test unit (10) is arranged on torque sensor boss (9), first terminal pad boss (3) and torque measurement groove (4) coupling are installed together, torque sensor boss (9) and the coupling of the second terminal pad groove (11) are installed together.
2. a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle according to claim 1, is characterized in that: described first terminal pad boss (3) is cruciform boss; Torque measurement groove (4) is cross groove.
3. a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle according to claim 2, is characterized in that: described torque sensor boss (9) is cruciform boss; Second terminal pad groove (11) is cross groove.
4. a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle according to claim 1, is characterized in that: described stationary coil (6) and revolving coil (7) are coaxially arranged in juxtaposition.
5. a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle according to claim 1, is characterized in that: one made by described rotary core (8) and torque sensor boss (9).
6. a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle according to claim 5, is characterized in that: one made by described first terminal pad (2) and the first terminal pad boss (3).
7. a kind of noncontact strain-type shaft coupling torque sensor based on transformer principle according to claim 1, is characterized in that: torque stress test unit (10) is metal strain plate, surface acoustic wave sensor, acoustic wave sensor or counter Magnetostrictive torque transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035334.1A CN105547549B (en) | 2016-01-19 | 2016-01-19 | A kind of non-contact strain-type coupler torque sensor based on transformer principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610035334.1A CN105547549B (en) | 2016-01-19 | 2016-01-19 | A kind of non-contact strain-type coupler torque sensor based on transformer principle |
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| Publication Number | Publication Date |
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| CN105547549A true CN105547549A (en) | 2016-05-04 |
| CN105547549B CN105547549B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610035334.1A Expired - Fee Related CN105547549B (en) | 2016-01-19 | 2016-01-19 | A kind of non-contact strain-type coupler torque sensor based on transformer principle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562388A (en) * | 2018-04-23 | 2018-09-21 | 哈尔滨工业大学 | A kind of contactless torque measuring device based on counter magnetostriction effect |
| CN109029580A (en) * | 2018-08-14 | 2018-12-18 | 北京航天新风机械设备有限责任公司 | A kind of airtight storing and transporting box enviromental monitoring equipment |
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| CN2220065Y (en) * | 1994-10-07 | 1996-02-14 | 李国林 | Intelligence coupling |
| CN101382461A (en) * | 2008-08-25 | 2009-03-11 | 北京新宇航世纪科技有限公司 | Torque sensor and measuring system |
| CN201594026U (en) * | 2009-12-29 | 2010-09-29 | 东莞市精航达电动转向***有限公司 | Magnetoelectric non-contact torque sensor and electric steering device using same |
| CN203203737U (en) * | 2012-07-23 | 2013-09-18 | 王建钧 | Non-contact dynamic torque and rotation speed/shaft power signal sensor |
| DE102013013634A1 (en) * | 2013-08-14 | 2015-02-19 | Hottinger Baldwin Messtechnik Gmbh | Torque measuring device for measuring large torques |
| CN204403198U (en) * | 2015-02-02 | 2015-06-17 | 哈尔滨理工大学 | The desk-top motor of a kind of cross-shaped convex-concave is to dragging experiment coupling |
| CN104967381A (en) * | 2015-06-17 | 2015-10-07 | 江苏磁谷科技股份有限公司 | Electromagnetic coupling flexible speed adjusting device |
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2016
- 2016-01-19 CN CN201610035334.1A patent/CN105547549B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2220065Y (en) * | 1994-10-07 | 1996-02-14 | 李国林 | Intelligence coupling |
| CN101382461A (en) * | 2008-08-25 | 2009-03-11 | 北京新宇航世纪科技有限公司 | Torque sensor and measuring system |
| CN201594026U (en) * | 2009-12-29 | 2010-09-29 | 东莞市精航达电动转向***有限公司 | Magnetoelectric non-contact torque sensor and electric steering device using same |
| CN203203737U (en) * | 2012-07-23 | 2013-09-18 | 王建钧 | Non-contact dynamic torque and rotation speed/shaft power signal sensor |
| DE102013013634A1 (en) * | 2013-08-14 | 2015-02-19 | Hottinger Baldwin Messtechnik Gmbh | Torque measuring device for measuring large torques |
| CN204403198U (en) * | 2015-02-02 | 2015-06-17 | 哈尔滨理工大学 | The desk-top motor of a kind of cross-shaped convex-concave is to dragging experiment coupling |
| CN104967381A (en) * | 2015-06-17 | 2015-10-07 | 江苏磁谷科技股份有限公司 | Electromagnetic coupling flexible speed adjusting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562388A (en) * | 2018-04-23 | 2018-09-21 | 哈尔滨工业大学 | A kind of contactless torque measuring device based on counter magnetostriction effect |
| CN109029580A (en) * | 2018-08-14 | 2018-12-18 | 北京航天新风机械设备有限责任公司 | A kind of airtight storing and transporting box enviromental monitoring equipment |
| CN109029580B (en) * | 2018-08-14 | 2023-08-11 | 北京新风航天装备有限公司 | Airtight storage and transportation case environment monitoring equipment |
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| CN105547549B (en) | 2018-06-29 |
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Granted publication date: 20180629 Termination date: 20190119 |