CN103673862A - Three-floater gyroscope magnetic suspension centering assembly detection device - Google Patents
Three-floater gyroscope magnetic suspension centering assembly detection device Download PDFInfo
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- CN103673862A CN103673862A CN201310629670.5A CN201310629670A CN103673862A CN 103673862 A CN103673862 A CN 103673862A CN 201310629670 A CN201310629670 A CN 201310629670A CN 103673862 A CN103673862 A CN 103673862A
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- 239000000725 suspension Substances 0.000 title claims abstract description 55
- 238000001514 detection method Methods 0.000 title abstract 2
- 238000012360 testing method Methods 0.000 claims abstract description 98
- 238000005339 levitation Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 238000012544 monitoring process Methods 0.000 abstract 2
- 230000005484 gravity Effects 0.000 abstract 1
- 238000012800 visualization Methods 0.000 abstract 1
- 239000010437 gem Substances 0.000 description 6
- 229910001751 gemstone Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Abstract
The invention relates to a three-floater gyroscope magnetic suspension centering assembly detection device and belongs to the technical field of three-floater gyroscope assembly. By the device, monitoring of assembly process and controlling of centering parameters can be effectively realized. An axial positioning base and a dry centering testing support are structurally symmetric, LY12 low in specific gravity and easy to process is selected, and geometric accuracy is controlled within 0.002mm, so that product assembly errors can be effectively reduced. When the device is in use, small gap and screw fastening are adopted, so that positioning and measuring errors are eliminated. By axially and radially monitoring position information of a floater component in a gyroscope, visualization of spatial position information of a magnetic suspension bearing in a meter cavity is realized, so that problems in the process of assembly can be found and handled timely.
Description
Technical field
The present invention relates to three float-type gyroscope magnetic levitation centered assembling pick-up units, belong to three float-type gyroscope mounting technology fields.
Background technology
The novel gyroscope that three float-type gyroscopes are that liquid collecting is floating, dynamic pressure air float, magnetic levitation are integrated, it is mainly comprised of float assembly, torquer holder assembly, sensor holder assembly, left and right end cap, magnetic suspension bearing etc.Wherein magnetic levitation element geometric center, power center and signal center's misalignment are important factor that causes accuracy of instrument error, be also the main cause that magnetic levitation disturbance torque produces, so magnetic suspension bearing require to have very high centered assembling precision simultaneously.
Current magnetic suspension bearing assembling process merely dependence machine adds size, artificially judges float centered assembling position, and testing apparatus cannot be accomplished special use, operation and testing process are cumbersome, cannot macroscopic examination judge, easily cause maloperation hidden danger, confined state and instrument mode contrast difference are larger.
Magnetic suspension bearing is to carry out controlling float assembly along the symmetric position in output shaft direction on spacing basis at pivot and jewel bearing, during instrumentation, float assembly working position is measured by two end axles, radial magnetic bearing, and provide location restoring force by force feedback loop, to guarantee the best operational position of float assembly.
While working in view of float assembly and when assembling supporting and location difference, how in assembling process, effectively to control float assembly centering position, guaranteeing that magnetic levitation test center and the spacing center superposition of jewel bearing are the keys that improves Meter Reliability and precision, is also the gordian technique difficult point of instrument magnetic levitation assembling centering.
The centering of three float-type gyroscope output shaft systems requires to be directly connected to the precision and stability of instrument.During instrumentation, between pivot and jewel eye, must not contact.Once contact between pivot and jewel bearing, will on output shaft, increase the friction disturbance torque of pivot and jewel bearing, have influence on the precision and stability that instrument is often worth, instrument cisco unity malfunction when serious.The method that this practicality provides is for three float-type gyroscope assembly structure features, and solution is because of the float assembly pivot that centered assembling low precision brings in gyroscope and jewel bearing is interfered and magnetic levitation reinforcing is asymmetric, affects the problem of instrumentation stability.
Summary of the invention
The object of the invention is, in order to overcome the problem that existing three float-type gyroscope assembling processes output axis centered assemblings cannot visual inspection, to propose three float-type gyroscope magnetic levitation centered assembling pick-up units.
The object of the invention is to be achieved through the following technical solutions.
Three float-type gyroscope magnetic levitation centered assembling pick-up units of the present invention, this device comprises axial location base, radial alignment support for testing, clamp-screw and electric inductance measuring-testing instrument;
When three float-type gyroscopes are carried out to radial alignment test, three float-type gyroscopes are fixed on radial alignment support for testing by clamp-screw, by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance (L2) between stator and rotor and below the inductance (L1) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes are ressembled to work;
Then three float-type gyroscopes are rotated to 90 ° together with radial alignment support for testing, again by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance (L3) between stator and rotor and below the inductance (L4) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes are ressembled to work;
Then three float-type gyroscopes are rotated to 180 ° together with radial alignment support for testing, again by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance (L5) between stator and rotor and below the inductance (L6) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes are ressembled to work;
Then three float-type gyroscopes are rotated to 270 ° together with radial alignment support for testing, again by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance (L9) between stator and rotor and below the inductance (L8) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes are ressembled to work.
When three float-type gyroscopes are carried out to axial alignment test, three float-type gyroscopes are fixed on radial alignment support for testing by clamp-screw, again three float-type gyroscopes are fixed on axial location base together with radial alignment support for testing, by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance (L9) between stator and rotor and below the inductance (L10) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to, when inductance value is in setting range, illustrate that three float-type gyroscope centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes are ressembled to work.
When three float-type gyroscopes are carried out to radial alignment test, ignore leakage field, suppose to be uniformly distributed by the magnetic field in each cross section, according to the known inductance L of Ampere circuit law
radiallyand gap delta
radiallybetween relational expression be:
N is the coil turn of magnetic suspension bearing, and S is that core section is long-pending, and μ is air magnetoconductivity.
When three float-type gyroscopes are carried out to axial alignment test, ignore leakage field, suppose to be uniformly distributed by the magnetic field in each cross section, according to the known inductance L of Ampere circuit law
axiallyand gap delta
axiallybetween relational expression be:
N is the coil turn of magnetic suspension bearing, and S is that core section is long-pending, and μ is air magnetoconductivity.
Axial location base and radial alignment support for testing all adopt LY12 material.
Beneficial effect
The present invention can effectively monitor assembling process, control centering parameter;
Axial location base of the present invention and dry centering support for testing adopt symmetrical structure design, material selection low-gravity, the LY12 easily processing, and track geometry precision is controlled in 0.002mm, can effectively reduce Product Assembly error.In device use procedure, adopt minim gap and screws tighten, eliminate location and measuring error.
The present invention monitors float assembly positional information in gyroscope by two-way axially and radially simultaneously, realizes magnetic suspension bearing spatial positional information visual in instrument the chamber in, the problem occurring is found in time, in time adjustment in process assembling.
Accompanying drawing explanation
Fig. 1 is that three float-type gyroscopes 4 carry out the radial alignment device schematic diagram in when test;
Fig. 2 is that three float-type gyroscopes 4 carry out the axial alignment device schematic diagram in when test.
Embodiment
Three float-type gyroscope magnetic levitation centered assembling pick-up units, this device comprises axial location base 1, radial alignment support for testing 2, clamp-screw 3 and electric inductance measuring-testing instrument;
When three float-type gyroscopes 4 are carried out to radial alignment test, three float-type gyroscopes 4 are fixed on radial alignment support for testing 2 by clamp-screw 3, by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance (L2) between stator and rotor and below the inductance (L1) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope 4 centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes 4 are ressembled to work;
Then three float-type gyroscopes 4 are rotated to 90 ° together with radial alignment support for testing 2, again by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance (L3) between stator and rotor and below the inductance (L4) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope 4 centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes 4 are ressembled to work;
Then three float-type gyroscopes 4 are rotated to 180 ° together with radial alignment support for testing 2, again by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance (L5) between stator and rotor and below the inductance (L6) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope 4 centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes 4 are ressembled to work;
Then three float-type gyroscopes 4 are rotated to 270 ° together with radial alignment support for testing 2, again by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance (L9) between stator and rotor and below the inductance (L8) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to; When inductance value is in setting range, illustrate that three float-type gyroscope 4 centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes 4 are ressembled to work.
When three float-type gyroscopes 4 are carried out to axial alignment test, three float-type gyroscopes 4 are fixed on radial alignment support for testing 2 by clamp-screw 3, again three float-type gyroscopes 4 are fixed on axial location base 1 together with radial alignment support for testing 2, by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance (L9) between stator and rotor and below the inductance (L10) between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to, when inductance value is in setting range, illustrate that three float-type gyroscope 4 centered assemblings meet the requirements, if two inductance value surpass setting range, three float-type gyroscopes 4 are ressembled to work.
When three float-type gyroscopes 4 are carried out to radial alignment test, ignore leakage field, suppose to be uniformly distributed by the magnetic field in each cross section, according to the known inductance L of Ampere circuit law
radiallyand gap delta
radiallybetween relational expression be:
N is the coil turn (150) of magnetic suspension bearing, and S is the long-pending (11.627mm of core section
2), μ is air magnetoconductivity (4 π X10
-7h/m).
When three float-type gyroscopes 4 are carried out to axial alignment test, ignore leakage field, suppose to be uniformly distributed by the magnetic field in each cross section, according to the known inductance L of Ampere circuit law
axiallyand gap delta
axiallybetween relational expression be:
N is the coil turn (300) of magnetic suspension bearing, and S is the long-pending (36.172mm of core section
2), μ is air magnetoconductivity (4 π X10
-7h/m).
Axial location base 1 and radial alignment support for testing 2 all adopt LY12 material.
Below in conjunction with accompanying drawing and example, the present invention will be further described.
Example 1
Three float-type gyroscopes are L2-L6≤2mH, L1-L5≤2mH, L4-L8≤2mH, L3-L7≤2mH requiring axial magnetic signal center side-play amount to be not more than 2mH(in centered assembling process), it is 9 ± 1mH that axial magnetic suspension signal side-play amount requires
Three float-type gyroscope magnetic levitation centered assembling pick-up units, this device comprises axial location base 1, radial alignment support for testing 2, clamp-screw 3 and electric inductance measuring-testing instrument, axial location base 1 has the circular slab of cavity for Intermediate Gray, and radial alignment support for testing 2 is the octahedron with cavity;
As shown in Figure 1, when three float-type gyroscopes 4 are carried out to radial alignment test, three float-type gyroscopes 4 are fixed in the cavity of radial alignment support for testing 2 by clamp-screw 3, by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above the inductance L 1=8.92mH between stator and rotor in magnetic suspension bearing, below the inductance L 2=12.65mH between stator and rotor in magnetic suspension bearing;
Then by three float-type gyroscopes 4 together with radial alignment support for testing 2 half-twists, then by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance L 3=8.36mH between stator and rotor and below the inductance L 4=13.15mH between stator and rotor in magnetic suspension bearing;
Then by three float-type gyroscopes 4 together with radial alignment support for testing 2 Rotate 180s °, then by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance L 5=9.25mH between stator and rotor and below the inductance L 6=12.75mH between stator and rotor in magnetic suspension bearing;
Then three float-type gyroscopes 4 are rotated to 270 ° together with radial alignment support for testing 2, then by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance L 7=8.97mH between stator and rotor and below the inductance L 8=13.45mH between stator and rotor in magnetic suspension bearing;
From the known L2-L6=0.01mH of above test result, L1-L5=0.33mH, L4-L8=0.3mH, L3-L7=0.51mH, all meets technical requirement and is not more than 2mH.
Example 2
As shown in Figure 2, when three float-type gyroscopes 4 are carried out to axial alignment test, three float-type gyroscopes 4 are fixed in the cavity of radial alignment support for testing 2 by clamp-screw 3, again three float-type gyroscopes 4 are fixed in the cavity of axial location base 1 together with radial alignment support for testing 2, by electric inductance measuring-testing instrument test three float-type gyroscopes 4 under this location status above in magnetic suspension bearing the inductance between stator and rotor be L9=41.3mH, below the inductance L 10=49.5mH between stator and rotor in magnetic suspension bearing.
From the known L10-L9=8.2mH of test result, meet the requirement of technical requirement 9 ± 1mH.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (2)
1. three float-type gyroscope magnetic levitation centered assembling pick-up units, is characterized in that: this device comprises axial location base, radial alignment support for testing, clamp-screw and electric inductance measuring-testing instrument;
When three float-type gyroscopes are carried out to radial alignment test, three float-type gyroscopes are fixed on radial alignment support for testing by clamp-screw, by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance between stator and rotor and below the inductance between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to;
Then by three float-type gyroscopes together with radial alignment support for testing half-twist, again by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance between stator and rotor and below the inductance between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to;
Then by three float-type gyroscopes together with radial alignment support for testing Rotate 180 °, again by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance between stator and rotor and below the inductance between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to;
Then three float-type gyroscopes are rotated to 270 ° together with radial alignment support for testing, again by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the inductance between stator and rotor and below the inductance between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap, convert gap value to;
When three float-type gyroscopes are carried out to axial alignment test, three float-type gyroscopes are fixed on radial alignment support for testing by clamp-screw, again three float-type gyroscopes are fixed on axial location base together with radial alignment support for testing, by electric inductance measuring-testing instrument test three float-type gyroscopes under this location status above in magnetic suspension bearing the gap between stator and rotor and below the inductance between stator and rotor in magnetic suspension bearing, by the relational expression between inductance and gap (2), convert gap value to;
Ask, if two gap widths surpass setting range, three float-type gyroscopes are ressembled to work;
When three float-type gyroscopes are carried out to radial alignment test, inductance L
radiallyand gap delta
radiallybetween relational expression be:
N is the coil turn of magnetic suspension bearing, and S is that core section is long-pending, and μ is air magnetoconductivity;
When three float-type gyroscopes are carried out to axial alignment test, inductance L
axiallyand gap delta
axiallybetween relational expression be:
N is the coil turn of magnetic suspension bearing, and S is that core section is long-pending, and μ is air magnetoconductivity.
2. three float-type gyroscope magnetic levitation centered assembling on-line measuring devices according to claim 1, is characterized in that: axial location base and radial alignment support for testing all adopt LY12 material.
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| CN201310629670.5A CN103673862B (en) | 2013-11-29 | 2013-11-29 | Three float-type gyroscope magnetic levitation centered assembling pick-up units |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913597A (en) * | 2014-03-27 | 2014-07-09 | 北京航天控制仪器研究所 | Centering monitoring system for spinning top accelerometer floater |
| CN107907747A (en) * | 2017-12-19 | 2018-04-13 | 陕西航天时代导航设备有限公司 | A kind of magnetic suspension element inductors output characteristics test fixture and test method |
| CN113447009A (en) * | 2021-05-24 | 2021-09-28 | 西安航天时代精密机电有限公司 | Liquid floating gyroscope trial assembly device based on full rubber ring sealing structure |
| CN113865572A (en) * | 2021-09-26 | 2021-12-31 | 西安立中测控科技有限公司 | Built-in precise centering device of gyroscope |
| CN115615460A (en) * | 2022-09-26 | 2023-01-17 | 北京航天控制仪器研究所 | Magnetic suspension stator detection device |
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| CN102435131A (en) * | 2011-11-11 | 2012-05-02 | 北京中科科仪技术发展有限责任公司 | Radial displacement sensor and rotor radial displacement detection system of magnetically levitated molecular pump |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913597A (en) * | 2014-03-27 | 2014-07-09 | 北京航天控制仪器研究所 | Centering monitoring system for spinning top accelerometer floater |
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| CN113447009A (en) * | 2021-05-24 | 2021-09-28 | 西安航天时代精密机电有限公司 | Liquid floating gyroscope trial assembly device based on full rubber ring sealing structure |
| CN113865572A (en) * | 2021-09-26 | 2021-12-31 | 西安立中测控科技有限公司 | Built-in precise centering device of gyroscope |
| CN115615460A (en) * | 2022-09-26 | 2023-01-17 | 北京航天控制仪器研究所 | Magnetic suspension stator detection device |
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| CN103673862B (en) | 2016-02-10 |
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Effective date of registration: 20161027 Address after: 100094, No. 3, North Road, Yongfeng industrial base, Beijing, Haidian District Patentee after: China Aerospace Times Electronics Co., Ltd. Address before: 100854 Yongding Road, Beijing, Haidian District, No. 50, No. Patentee before: Beijing Xinghua Machinery Factory |
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Effective date of registration: 20190320 Address after: Room 205, 2nd floor, 6th building, 8th courtyard, Haixin Road, Daxing District, Beijing 102600 Patentee after: Beijing Aerospace Xinghua Technology Co., Ltd. Address before: No. 3 Yongjie North Road, Yongfeng Industrial Base, Haidian District, Beijing 100094 Patentee before: China Aerospace Times Electronics Co., Ltd. |