CN202329888U - System for carrying out non-contact dynamic measurement on torque of rotating shaft based on optical fibers - Google Patents
System for carrying out non-contact dynamic measurement on torque of rotating shaft based on optical fibers Download PDFInfo
- Publication number
- CN202329888U CN202329888U CN2011204586273U CN201120458627U CN202329888U CN 202329888 U CN202329888 U CN 202329888U CN 2011204586273 U CN2011204586273 U CN 2011204586273U CN 201120458627 U CN201120458627 U CN 201120458627U CN 202329888 U CN202329888 U CN 202329888U
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- Prior art keywords
- rotating shaft
- turning axle
- optical fiber
- torque
- measured
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- Expired - Fee Related
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- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 239000013307 optical fiber Substances 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
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Abstract
The utility model relates to a system for carrying out non-contact dynamic measurement on the torque of a rotating shaft based on optical fibers. Article color-marks are processed on a measured object at a certain interval, an optical fiber probe is arranged above the article color-marks, and the optical fiber probe is firmly fixed on a connecting assembly; and when a measured shaft is running rotatablely, with the rotation of the shaft under different working conditions, a splined rotating shaft generates corresponding angular distortions under different loads, the article color-marks on the splined rotating shaft generate phase differences because of the angular distortions, then a corresponding relation is formed between the phase differences measured by each set of optical fibers and the measured torque value of the measured splined rotating shaft, and according to the phase difference measurement results of the optical fibers, accurate torque change data of the splined rotating shaft can be obtained. According to the utility model, the rotating shaft can be subjected to non-contact dynamic on-line torque measurement, no auxiliary mechanical part is arranged on the rotating shaft, and the geometric size of the optical fiber probe can satisfy the requirements of a test environment; and the system disclosed by the utility model has the advantages of simple structure, smart design and good stability.
Description
Technical field
The utility model relates to a kind of measuring equipment, particularly a kind of turning axle moment of torsion noncontact dynamic measurement system based on optical fiber.
Background technology
At present; Turning axle moment of torsion non-contact measurement system mainly contains following two kinds: 1; The method of adhering resistance strain sheets designs measuring system on axle; This method must increase foil gauge system and attaching apparatus on turning axle, for have do not change the axle be the measurand of layout and on-line measurement requirement, obviously be inappropriate; 2, the magnetoelectric phase difference measuring system of two pairs of gears of affix on axle since also to change axle system increased bigger quality with layout with on axle, not change axle be the measurand of layout and on-line measurement requirement for having, and also is inappropriate.
Summary of the invention
The utility model is the problem that exists to present turning axle moment of torsion non-cpntact measurement; A kind of turning axle moment of torsion noncontact dynamic measurement system based on optical fiber has been proposed; Basically do not changing under the condition of measured axis virgin state; Adopt optical fiber sensing technology, turning axle is carried out contactless dynamic online torque measurement.
The technical scheme of the utility model is: a kind of turning axle moment of torsion noncontact dynamic measurement system based on optical fiber; On the turning axle of measurand; Process several clause colour codes that carve at least two row's five equilibriums at a distance of setting position,, make abutment sleeve and clause colour code keep measuring distance at turning axle outer race upper sensor abutment sleeve; Over against every row's clause colour code and at sensor abutment sleeve inner ring; With the turning axle is that the even angle of central shaft is arranged at least 3 sensors, and the sensor abutment sleeve is fixedly secured at coupling assembling by bolt connection assembly, and sensor signal is sent controller.
Said sensor is the laser fiber sensor.
The beneficial effect of the utility model is: the utility model is based on the turning axle moment of torsion noncontact dynamic measurement system of optical fiber; Turning axle is carried out contactless dynamic online torque measurement; There is not attached component of machine on the turning axle; The physical dimension of laser fiber probe can satisfy the test environment requirement, have simple in structure, design is ingenious, the advantage of good stability.
Description of drawings
Fig. 1 is the turning axle moment of torsion noncontact dynamic measurement system structural representation of the utility model based on optical fiber.
Embodiment
As shown in Figure 1, measurand is a spline turning axle 1, in the position of spline turning axle 1 at a distance of L length; Adopt machining center; Carve 30 two row's clause colour codes of five equilibrium above that, sensor abutment sleeve 3 on the splined shaft outer race respectively installs three laser fiber probes 2 additional with respect to two row's clause colour code places on this sleeve; Three fibre-optical probes respectively become 120 ° of layouts; Sensor abutment sleeve 3 on the whole splined shaft 1 is fixedly secured on coupling assembling 5 by bolt connection assembly 4, thereby when spline turning axle 1 rotary work, each fibre-optical probe 2 has kept relative safe distance with the clause colour code.Along with the rotation of spline turning axle 1 under different operating modes, spline turning axle 1 produces corresponding angular deformation under different loads, and angular deformation makes the clause colour code on the spline turning axle 1 produce phase differential, and the state of phase differential is accurately measured by each group optical fiber.Each tested torque value of organizing measured phase differential that obtains of optical fiber and tested spline turning axle 1 becomes corresponding relation, promptly adopts optical fiber to carry out phase difference measurement, and the result can obtain the change in torque data of spline turning axle 1 accurately.
On the distance of L, be provided with 2 roads, 30 colour codes such as branch such as grade on the spline turning axle 1, after tested main shaft is driven by the main frame output torque, on tested length L, producing relative angular displacement, detecting the relative angular displacement amount by laser fiber probe 2.Adopt 120 ° of two groups of circumference each three laser fibers probe 2 that evenly distribute in the scheme, thus reduce since the deviations such as ovality, right alignment, diameter run-out and physical dimension of measured axis to measuring the error that is produced.
Claims (2)
1. turning axle moment of torsion noncontact dynamic measurement system based on optical fiber; It is characterized in that, on the turning axle of measurand, carve several clause colour codes of at least two row's five equilibriums at a distance of setting position processing; At turning axle outer race upper sensor abutment sleeve; Making abutment sleeve and clause colour code keep measuring distance, over against every row's clause colour code and at sensor abutment sleeve inner ring, is that the even angle of central shaft is arranged at least 3 sensors with the turning axle; The sensor abutment sleeve is fixedly secured at coupling assembling by bolt connection assembly, and sensor signal is sent controller.
2. according to the said turning axle moment of torsion noncontact dynamic measurement system of claim 1, it is characterized in that said sensor is the laser fiber sensor based on optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204586273U CN202329888U (en) | 2011-11-18 | 2011-11-18 | System for carrying out non-contact dynamic measurement on torque of rotating shaft based on optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204586273U CN202329888U (en) | 2011-11-18 | 2011-11-18 | System for carrying out non-contact dynamic measurement on torque of rotating shaft based on optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202329888U true CN202329888U (en) | 2012-07-11 |
Family
ID=46441866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204586273U Expired - Fee Related CN202329888U (en) | 2011-11-18 | 2011-11-18 | System for carrying out non-contact dynamic measurement on torque of rotating shaft based on optical fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202329888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494817A (en) * | 2011-11-18 | 2012-06-13 | 中国船舶重工集团公司第七0四研究所 | Non-contact dynamic measurement system for torque of rotating shaft based on optical fibers |
| US11060932B2 (en) | 2017-07-28 | 2021-07-13 | Prime Photonics, Lc | Method and system for sensing high resolution shaft position and axial displacement |
-
2011
- 2011-11-18 CN CN2011204586273U patent/CN202329888U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494817A (en) * | 2011-11-18 | 2012-06-13 | 中国船舶重工集团公司第七0四研究所 | Non-contact dynamic measurement system for torque of rotating shaft based on optical fibers |
| US11060932B2 (en) | 2017-07-28 | 2021-07-13 | Prime Photonics, Lc | Method and system for sensing high resolution shaft position and axial displacement |
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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: 20120711 Termination date: 20171118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |