CN203376089U - Photoelectric-type torque sensor - Google Patents
Photoelectric-type torque sensor Download PDFInfo
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- CN203376089U CN203376089U CN201320343927.6U CN201320343927U CN203376089U CN 203376089 U CN203376089 U CN 203376089U CN 201320343927 U CN201320343927 U CN 201320343927U CN 203376089 U CN203376089 U CN 203376089U
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- grating disc
- photoelectric device
- circular shaft
- elastic torsion
- circle
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Abstract
The utility model discloses a photoelectric-type torque sensor which comprises a split-type sensor housing. Two opposite sides of the split-type sensor housing are respectively equipped with a bearing A and a bearing B. An elastic torsion circular shaft is installed on the bearing A and the bearing B. Two end of the elastic torsion circular shaft are respectively equipped with a connection key. A circular raster disc A and a circular raster disc B are symmetrically installed on the elastic torsion circular shaft. A photoelectric device A and a photoelectric device B are respectively disposed on the circular raster discs, and are respectively connected with a micro-processing system. In the utility model, the problems, existing in the prior art, of low accuracy of measurement and poor stability which are caused by bad contact are solved when a sliding carbon brush device detects the variable quantity of the output voltage of a foil gauge.
Description
Technical field
The utility model belongs to the sensor device technical field, relates to a kind of torque sensor, is specifically related to a kind of photo-electric torque sensor.
Background technology
Torque sensor is a very important device in machinery and equipment detection, control technology, in all kinds of machines, is able to widespread use.The detection of machinery and equipment and control technology are to the torque sensor performance requirement: measuring accuracy is high, dynamic perfromance good, testing result is stable, reliable, long service life.
At present, torque sensor generally all adopts the mode of strain measurement, foil gauge is mounted on the elastic torsion circular shaft, when tested moment loading during at elastic torsion circular shaft two ends, the elastic torsion circular shaft produces torsional deflection, the foil gauge be mounted on the elastic torsion circular shaft together produces distortion, causes the output voltage acted on foil gauge to change, determine by the size of measuring moment by the variable quantity that detects the foil gauge output voltage, belong to the contact type measurement mode.Because foil gauge is mounted on the elastic torsion circular shaft, together rotates with the elastic torsion circular shaft, must adopt special slidding carbon brush device to detect the variable quantity of foil gauge output voltage.This slidding carbon brush device general serviceable life is limited and easily produce the phenomenons such as loose contact, affects measuring accuracy and the stability of torque sensor.
The utility model content
The purpose of this utility model is to provide a kind of photo-electric torque sensor, photoelectric device and circle be contactless between grating disc, do not produce friction, the variable quantity that has solved the slidding carbon brush device detection foil gauge output voltage existed in the prior art easily produces loose contact, the low problem that reaches poor stability of the measuring accuracy caused.
The technical scheme that the utility model adopts is that the photo-electric torque sensor, comprise the dissection type sensor housing, and the elastic torsion circular shaft that is arranged on dissection type sensor housing inside, circle grating disc A, circle grating disc B, photoelectric device A, microprocessing systems, photoelectric device B.
Two sides relative at the dissection type sensor housing are equipped with bearing A and bearing B, and the elastic torsion circular shaft is arranged on bearing A and bearing B is upper, and the two ends that described elastic torsion circular shaft is positioned at the outside of dissection type sensor housing are provided with linking bond; Circle grating disc A and circle grating disc B symmetry are arranged on the elastic torsion circular shaft; Be respectively arranged with photoelectric device A and photoelectric device B on circle grating disc A and circle grating disc B, photoelectric device A is connected with microprocessing systems with photoelectric device B.
Characteristics of the present utility model also are,
Be symmetrically arranged with two set collars on the elastic torsion circular shaft, be provided with elastic torsion circular shaft pilot hole on each set collar; The centre of circle grating disc A and circle grating disc B is provided with round grating disc mounting hole, the diameter of the internal diameter of mounting hole and elastic torsion circular shaft coordinates, be provided with round grating disc mounting-positioning holes on circle grating disc A and circle grating disc B, circle grating disc mounting-positioning holes matches with the diameter of elastic torsion circular shaft pilot hole, and is fixedly connected with by register pin.
Be provided with round grating disc workspace on circle grating disc A and circle grating disc B, the workspace photoetching of circle grating disc has some grid grooves, in workspace center position photoetching, a telltale mark grid groove is arranged, and the length of telltale mark grid groove is greater than all the other some grid grooves.
Photoelectric device A and photoelectric device B lay respectively at described round grating disc A and circle grating disc B(4) diametric(al), and be fixed on the dissection type sensor housing; All have groove on photoelectric device A and photoelectric device B, the edge of circle grating disc A and circle grating disc B is arranged in groove; One side of groove is provided with a phase luminotron and b phase luminotron, and opposite side is provided with a phase photosensitive tube and b phase photosensitive tube.
The beneficial effects of the utility model are, two round grating discs rotate with the elastic torsion circular shaft, when torsional deflection occurs in this elastic torsion circular shaft under tested moment loading, on two round grating discs, special telltale mark grid groove misplaces, can detect this torsiversion malposition information with two photoelectric devices and microprocessing systems, determine by the size of measuring moment, contactless between photoelectric device and circle grating disc, do not produce friction, can avoid the low defect that reaches poor stability of measuring accuracy caused due to loose contact, long service life, measurement sensitivity and measuring accuracy are high.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model photo-electric torque sensor;
Fig. 2 is the structural representation of the round grating disc of the utility model photo-electric torque sensor;
Fig. 3 is the structural representation of the elastic torsion circular shaft of the utility model photo-electric torque sensor;
Fig. 4 is the end face structure schematic diagram of the elastic torsion circular shaft of the utility model photo-electric torque sensor;
Fig. 5 is the round grating disc of the utility model photo-electric torque sensor and the structural representation of photoelectric device;
Fig. 6 is the structural representation of the photoelectric device of the utility model photo-electric torque sensor.
In figure, 1. elastic torsion circular shaft, 2. dissection type sensor housing, 3. justify grating disc A, 4. justify grating disc B, 5. photoelectric device A, 6. microprocessing systems, 7. photoelectric device B, 8. bearing A, 9. bearing B, 10. linking bond, 11. set collars, 12. circle grating disc workspace, 13. the grid groove, 14. telltale mark grid grooves, 15. circle grating disc mounting holes, 16. circle grating disc mounting-positioning holes, 17. mounting-positioning holes, 18.a phase luminotron, 19.b phase luminotron, 20.a phase photosensitive tube, 21.b the phase photosensitive tube, 22. register pins, 23. grooves.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Photo-electric torque sensor of the present utility model, as shown in Figure 1, comprise dissection type sensor housing 2, and the elastic torsion circular shaft 1 that is arranged on dissection type sensor housing 2 inside, circle grating disc A3, circle grating disc B4, photoelectric device A5, microprocessing systems 6, photoelectric device B7; Two sides that dissection type sensor housing 2 is relative are equipped with bearing A8 and bearing B9, and it is upper that elastic torsion circular shaft 1 is arranged on bearing A8 and bearing B9, and the two ends that elastic torsion circular shaft 1 is positioned at the outside of dissection type sensor housing 2 are provided with linking bond 10; Circle grating disc A3 and circle grating disc B4 symmetry are arranged on elastic torsion circular shaft 1; Be respectively arranged with photoelectric device A5 and photoelectric device B7 on circle grating disc A3 and circle grating disc B4, photoelectric device A5 is connected with microprocessing systems 6 with photoelectric device B7.
As shown in Figure 2, be provided with round grating disc workspace 12 on circle grating disc A3 and circle grating disc B4, workspace 12 photoetching of circle grating disc have some grid grooves 13, in workspace center position photoetching, a telltale mark grid groove 14 is arranged, and the length of telltale mark grid groove 14 are greater than all the other some grid grooves 13;
As Fig. 3, shown in Fig. 4, be symmetrically arranged with two set collars 11 on elastic torsion circular shaft 1, be provided with the pilot hole 17 that circle grating disc A3 and circle grating disc B4 are installed on set collar 11.
The centre of circle grating disc A3 and circle grating disc B4 is provided with round grating disc mounting hole 15, the diameter of the internal diameter of mounting hole 15 and elastic torsion circular shaft 1 coordinates, be provided with round grating disc mounting-positioning holes 16 on circle grating disc A3 and circle grating disc B4, circle grating disc mounting-positioning holes 16 with the diameter of elastic torsion circular shaft pilot hole 17 match, and be fixedly connected with by register pin 22.
As shown in Figure 5, Figure 6, the diametric(al) of the round grating disc A3 that photoelectric device A5 and photoelectric device B7 lay respectively at and circle grating disc B4, and on the dissection type sensor housing 2 be fixed on; One side of groove 23 is provided with a phase luminotron 18 and b phase luminotron 19, and opposite side is provided with a phase photosensitive tube 20 and b phase photosensitive tube 21.
Photo-electric torque sensor of the present utility model, when two round grating discs are installed, adopt register pin 22 by two mounting-positioning holes 17 on elastic torsion circular shaft 1 respectively with two round grating discs on round grating disc pilot hole 16 fixing, guarantee that round grating disc A3 is in same phase place (two telltale mark grid grooves 14 are on the same plane of parallel elastic torsion circular shaft axis) with two telltale mark grid grooves 14 on round grating disc B4.Elastic torsion circular shaft 1 is arranged on dissection type sensor housing 2 by bearing 8 and bearing 9, and photoelectric device A5 and photoelectric device B7 are installed respectively in the round grating disc A3 on dissection type sensor housing 2 and circle grating disc B4 radial position, and microprocessing systems 6; Photoelectric device A5 and photoelectric device B7 are electrically connected to microprocessing systems 6 respectively, microprocessing systems 6 carries power supply to photoelectric device A5 and photoelectric device B7, photoelectric device A5 and photoelectric device B7 transmit signal to microprocessing systems 6 simultaneously, and microprocessing systems 6 is exported measurement result after the signal received is processed.
The principle of work of photo-electric torque sensor of the present utility model is, grid groove 13 and telltale mark grid groove 14 printing opacities in the workspace 12 of circle grating disc A3 and circle grating disc B4, remainder is all light tight, two photoelectric device A5 and photoelectric device B7, the light that a phase luminotron 18 and b phase luminotron 19 can be sent sees through respectively telltale mark grid groove 14 grid grooves in circle grating disc workspace and the light signal of grid groove 13 converts electric impulse signal to through a phase photosensitive tube 20 and b phase photosensitive tube 21, then be transferred to microprocessing systems 6, microprocessing systems 6 is comprised of single-chip microcomputer or other microprogramming devices, can receive the electric impulse signal of being passed back by a phase photosensitive tube 20 on two photoelectric device A5 and photoelectric device B7 and b phase photosensitive tube 21 simultaneously and be processed.
When carrying out torgue measurement, when tested moment loading during at elastic torsion circular shaft 1 two ends, elastic torsion circular shaft 1 produces torsional deflection, cause two telltale mark grid grooves 14 on the round grating disc A3 that is arranged on elastic torsion circular shaft 1 both sides and circle grating disc B4 because torsion produces variations in skews, same phase position while being no longer initial, then, by being arranged on dissection type sensor housing 2 photoelectric device A5 and the photoelectric device B7 that justifies grating disc A3 and circle grating disc B4 radial position, and two telltale mark grid grooves 14 that microprocessing systems 6 detects on circle grating disc A3 and circle grating disc B4 produce the information that torsiversion malposition changes, then through computing, obtain by the numerical value of measuring moment.
Claims (4)
1. photo-electric torque sensor, it is characterized in that, comprise dissection type sensor housing (2), and the elastic torsion circular shaft (1) that is arranged on dissection type sensor housing (2) inside, circle grating disc A(3), circle grating disc B(4), photoelectric device A(5), microprocessing systems (6), photoelectric device B(7);
Two sides relative at described dissection type sensor housing (2) are equipped with bearing A(8) and bearing B(9), described elastic torsion circular shaft (1) is arranged on bearing A(8) and bearing B(9) upper, and the two ends that described elastic torsion circular shaft (1) is positioned at the outside of dissection type sensor housing (2) are provided with linking bond (10);
Described round grating disc A(3) and circle grating disc B(4) symmetry is arranged on elastic torsion circular shaft (1);
At described round grating disc A(3) and circle grating disc B(4) on be respectively arranged with photoelectric device A(5) and photoelectric device B(7), described photoelectric device A(5) with photoelectric device B(7) with microprocessing systems (6), be connected.
2. photo-electric torque sensor according to claim 1, is characterized in that, is symmetrically arranged with two set collars (11) on described elastic torsion circular shaft (1), is provided with mounting-positioning holes (17) on described each set collar (11);
Described round grating disc A(3) and circle grating disc B(4) centre be provided with round grating disc mounting hole (15), the diameter of the internal diameter of described mounting hole (15) and elastic torsion circular shaft (1) coordinates, circle grating disc A(3) and justify grating disc B(4) on be provided with round grating disc mounting-positioning holes (16), circle grating disc mounting-positioning holes (16) matches with the diameter of described mounting-positioning holes (17), and is fixedly connected with by register pin (22).
3. photo-electric torque sensor according to claim 1 and 2, it is characterized in that, circle grating disc A(3) and justify grating disc B(4) on be provided with round grating disc workspace (12), described round grating disc workspace (12) photoetching has some grid grooves (13), in workspace center position photoetching, a telltale mark grid groove (14) is arranged, and the length of telltale mark grid groove (14) is greater than all the other some grid grooves (13).
4. photo-electric torque sensor according to claim 1, it is characterized in that, described photoelectric device A(5) and photoelectric device B(7) lay respectively at described round grating disc A(3) and circle grating disc B(4) diametric(al), and be fixed on described dissection type sensor housing (2);
Described photoelectric device A(5) and photoelectric device B(7) on all have groove (23), described round grating disc A(3) and circle grating disc B(4) edge be arranged in groove (23);
One side of described groove (23) is provided with a phase luminotron (18) and b phase luminotron (19), and opposite side is provided with a phase photosensitive tube (20) and b phase photosensitive tube (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343927.6U CN203376089U (en) | 2013-06-14 | 2013-06-14 | Photoelectric-type torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320343927.6U CN203376089U (en) | 2013-06-14 | 2013-06-14 | Photoelectric-type torque sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203376089U true CN203376089U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320343927.6U Expired - Fee Related CN203376089U (en) | 2013-06-14 | 2013-06-14 | Photoelectric-type torque sensor |
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| CN (1) | CN203376089U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383293A (en) * | 2013-06-14 | 2013-11-06 | 西安工程大学 | Photoelectric torque measuring device and measuring method |
| CN108593163A (en) * | 2018-02-01 | 2018-09-28 | 南京拓科电子有限公司 | A kind of Photoelectric Detection metal shaft deformation torque sensor |
| CN110057481A (en) * | 2019-05-28 | 2019-07-26 | 武汉理工大学 | Measuring device is transmitted based on fiber grating and two between centers torques of strain-ga(u)ge technique |
| CN113015892A (en) * | 2018-07-12 | 2021-06-22 | 韩国科学技术研究院 | FBG-based torsion sensor device |
-
2013
- 2013-06-14 CN CN201320343927.6U patent/CN203376089U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383293A (en) * | 2013-06-14 | 2013-11-06 | 西安工程大学 | Photoelectric torque measuring device and measuring method |
| CN103383293B (en) * | 2013-06-14 | 2015-08-26 | 西安工程大学 | Photo-electric torque measuring device and measuring method |
| CN108593163A (en) * | 2018-02-01 | 2018-09-28 | 南京拓科电子有限公司 | A kind of Photoelectric Detection metal shaft deformation torque sensor |
| CN108593163B (en) * | 2018-02-01 | 2024-04-16 | 南京拓科电子有限公司 | Photoelectric detection metal shaft deformation moment sensor |
| CN113015892A (en) * | 2018-07-12 | 2021-06-22 | 韩国科学技术研究院 | FBG-based torsion sensor device |
| CN110057481A (en) * | 2019-05-28 | 2019-07-26 | 武汉理工大学 | Measuring device is transmitted based on fiber grating and two between centers torques of strain-ga(u)ge technique |
| CN110057481B (en) * | 2019-05-28 | 2020-09-29 | 武汉理工大学 | Torque transmission measuring device between two shafts based on fiber bragg grating and strain gauge technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20140614 |
|
| EXPY | Termination of patent right or utility model |