CN102938599B - A kind of bimorph transducer through hole bearing permanent magnet gyro motor - Google Patents
A kind of bimorph transducer through hole bearing permanent magnet gyro motor Download PDFInfo
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- CN102938599B CN102938599B CN201210475936.0A CN201210475936A CN102938599B CN 102938599 B CN102938599 B CN 102938599B CN 201210475936 A CN201210475936 A CN 201210475936A CN 102938599 B CN102938599 B CN 102938599B
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- 238000000034 method Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000004804 winding Methods 0.000 claims description 22
- 239000000919 ceramic Substances 0.000 claims description 7
- 230000005405 multipole Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002241 glass-ceramic Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of bimorph transducer through hole bearing permanent magnet gyro motor, comprise stator, rotor, thrust plate and axle, axle coaxial package is in the dead eye of armature spindle bearing sleeve, two thrust plates are arranged on the two ends, left and right of axle respectively by the working method of hydrodynamic gas-lubricated bearing, and fix with inner nut, a stator is installed at the two ends, left and right of rotor respectively, and these two stator outer nuts are fixed on axle.The present invention is a kind of design science, bimorph transducer through hole bearing permanent magnet gyro motor rational in infrastructure, this technology achieves the application of bimorph transducer through hole type hydrodynamic gas-lubricated bearing three-phase motor with permanent magnets in gyroscope field of position-sensor-free, the precision of gyroscope and inertial navigation system is all significantly improved, its advanced technology, has filled up the blank of China at technique.
Description
Technical field
The present invention relates to gyroscope field, especially a kind of bimorph transducer through hole bearing three-phase permanent gyro machine.
Background technology
Traditional permanent magnet gyro motor adopts external rotor, single stator, Split type bearing arrangement.Rotor is placed in outside stator, to meet the moment of momentum needed for gyroscope.Stator, at internal rotor, connects firmly with axle.Permanent magnetic steel settled by rotor, winding coil settled by stator.Stator winding passes to three-phase current and forms stator armature magnetic field, with rotor permanent magnet magnet steel magnetic field interaction, produces turning moment, motor is rotated and reaches synchronous regime.Mainly there is following defect in existing this traditional permanent magnet gyro motor: 1, stator adopts devitrified glass ceramics processing, coil is directly pasted onto on devitrified glass ceramics stator frame, then coordinates with the same outer cover being ceramic material of microcrystalline glass is processed, glueds joint and close.Because devitrified glass ceramics material hole is large, cleaning difficulty, therefore seriously polluted to hydrodynamic gas-lubricated bearing, easily cause hydrodynamic gas-lubricated bearing to lose efficacy.
2, rotor is made up of two bearing caps, rotor ring, magnet steel and shading rings.First, magnet steel and shading ring are installed on rotor, composition rotor assembly, and then two bearing caps are placed in rotor assembly both sides respectively, by seam and screw location, be connected, obtain rotor with rotor assembly.Bearing is Split type structure, diplopore journal bearing.Two bearings is placed on two bearing caps, and dead eye and axle form journal bearing, and bearing cap end face and thrust plate form thrust bearing.Bearing cap and rotor seam and screw are located, long-time use after have change in location, have vibration, concentricity is difficult to ensure, processing, grinding, assembling are complicated, easily change during mounting or dismounting, large on unbalancing value impact, cause accuracy of instrument to change.
3, because rotor and bearing parts are not commaterials, its coefficient of linear expansion is inconsistent, and influence of thermal deformation is large, easily causes bearing axial clearance to change, and causes bearing performance to be deteriorated even bearing failure.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of simple and reliable for structure, process, assemble easy, bearing accuracy, performance are easy to ensure, the bimorph transducer through hole bearing permanent magnet gyro motor that motor reliability is high.This motor adopts through hole bearing, Double-stator motor to solve bearing by stator pollution and bearing clearance variation issue.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of bimorph transducer through hole bearing permanent magnet gyro motor, comprise stator, rotor, thrust plate and axle, it is characterized in that: axle coaxial package is in the dead eye of armature spindle bearing sleeve, two thrust plates are arranged on the two ends, left and right of axle respectively by the working method of hydrodynamic gas-lubricated bearing, and fix with inner nut, a stator is installed at the two ends, left and right of rotor respectively, and these two stator outer nuts are fixed on axle.
And, described rotor is made up of bearing holder (housing, cover), magnet steel, rotor ring and magnetic guiding loop, a dead eye is coaxially made in the axle center of bearing holder (housing, cover), bearing holder (housing, cover) is coaxially arranged in rotor ring, the left and right sides symmetry of rotor ring makes two annular mounting groove, all coaxially an annular magnet steel is installed in each annular mounting groove, a magnetic guiding loop is all installed between the outer wall of each magnet steel and rotor ring, between the inwall of each magnet steel and rotor ring, all coaxially clamp an annular stator.
And described magnet steel is permanent magnetic multi-pole integral loop magnet steel.
And two described stators are connected by line electricity, the outer end of these two stators is packed on respective bracing frame respectively, and this bracing frame outer nut is fixed on axle.
And, described stator is iron-core-free structure, the outer end of stator is arranged on ceramic skeleton, stator winding coil is pasted onto on ceramic skeleton, sealed by winding through modes such as integer, die-filling, vacuum glue pouring, solidification, the demouldings, stator winding adopts three-phase Y-connection mode, two, left and right stator is loaded onto respectively the winding of a set of independent three-phase, adopt special control module, conduction mode is two to be conducted six states.
Advantage of the present invention and beneficial effect are:
1, the stator of this motor is iron-core-free structure, and select pottery that compactness is good as skeletal support material, stator winding coil is pasted onto on ceramic skeleton, is sealed by winding through modes such as integer, die-filling, vacuum glue pouring, solidification, the demouldings.This processing method can ensure that stator surface is smooth, easy cleaning, can reduce the pollution to bearing, extend the useful life of bearing.
2, because stator is iron-core-free structure, therefore iron loss is not had during machine operation, motor power consumption can be reduced, and increase machine operation air gap flux density by improving magnet steel performance, motor umber of turn can be reduced, increase winding wire diameter simultaneously, resistance can be effectively reduced, reduce copper loss, improve electric efficiency.
3, the magnet steel of this motor adopts permanent magnetic multi-pole integral loop magnet steel, and its symmetry is good, and can eliminate the defect of the multi-pole ring barycenter instability of polylith magnet steel composition, rotor global level is high.Rotor ring and magnetic guiding loop all select the coefficient of expansion and magnet steel close to material simultaneously, make magnet steel, magnetic guiding loop and rotor ring constitute a rigid body, ensure the stability of rotor centroid.
4, the mounting means of the bearing holder (housing, cover) of this rotor, magnet steel, rotor ring and magnetic guiding loop all adopts radial fit mode, without seam cooperation, screw location, make that rotor structure rigidity is large, good stability, in Split type bearing arrangement, diaxon bearing bore is replaced by the through hole of in through hole bearing arrangement, add and easily ensure concentricity man-hour, during mounting or dismounting, bearing parameter is unaffected, improves the consistency of axis of angular momentum and motor drive shaft; Bearing machining consistent size is good, after rotating, bearing deformation will much smaller than Split type structure, under Static and dynamic, bearing clearance can ensure constant, and therefore the axial rigidity of bearing is easily guaranteed, and Flexibility Difference is little reduces gyrostatic unequal rigidity, effectively can reduce gyroscope and acceleration square relevant coefficient of deviation, thus effectively improve gyro anti-vibration ability.
5, the present invention is a kind of design science, bimorph transducer through hole bearing permanent magnet gyro motor rational in infrastructure, the design achieves the application of bimorph transducer through hole type hydrodynamic gas-lubricated bearing three-phase motor with permanent magnets in gyroscope field of position-sensor-free, the precision of gyroscope and inertial navigation system is all significantly improved, its advanced technology, has filled up the blank of China at technique.
Accompanying drawing explanation
Fig. 1 of the present inventionly partly cuts open schematic diagram;
Fig. 2 be rotor partly cut open schematic diagram;
Fig. 3 be bearing partly cut open schematic diagram;
Fig. 4 is frame principle figure.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of bimorph transducer through hole bearing permanent magnet gyro motor, comprises stator 2, rotor 1, thrust plate 3 and axle 4.Innovative point of the present invention is: rotor is made up of bearing holder (housing, cover) 7, magnet steel 8, rotor ring 9 and magnetic guiding loop 10, bearing holder (housing, cover) is coaxially arranged in rotor ring, the left and right sides symmetry of rotor ring makes two annular mounting groove, the magnet steel that in each annular mounting groove, all coaxially installation one is annular, this magnet steel is permanent magnetic multi-pole integral loop magnet steel, a magnetic guiding loop is all installed between the outer wall of each magnet steel and rotor ring, rotor ring and magnetic guiding loop all select the coefficient of expansion and magnet steel close to material, make magnet steel, magnetic guiding loop and rotor ring constitute a rigid body, ensure the stability of rotor centroid.All coaxially clamp an annular stator between the inwall of each magnet steel and rotor ring, these two stators are connected by line electricity.The outer end of two stators is packed on respective bracing frame 11 respectively, and bracing frame is generally metal frame, and this bracing frame outer nut 6 is fixed on axle.
Stator is iron-core-free structure, stator is arranged on ceramic skeleton, stator winding coil is pasted onto on ceramic skeleton, through modes such as integer, die-filling, vacuum glue pouring, solidification, the demouldings, winding is sealed, stator winding adopts three-phase Y-connection mode, consider electric machine structure vertically with the symmetry of radial direction, two, left and right stator is loaded onto respectively the winding of a set of independent three-phase, adopt special control module, conduction mode is two to be conducted six states.On two stators, independently three-phase windings observes the rule of three phase electric machine winding.
Bearing is through hole type hydrodynamic gas-lubricated bearing (as shown in Figure 3), the dead eye of an axis is coaxially made in the axle center of bearing holder (housing, cover), axle coaxial package is in this dead eye, bearing holder (housing, cover) endoporus and axle form journal bearing, two thrust plates are arranged on the two ends, left and right of axle respectively by the working method of hydrodynamic gas-lubricated bearing, and fix with inner nut 5, bearing holder (housing, cover) both ends of the surface and thrust plate form thrust bearing, and bearing holder (housing, cover), axle and thrust plate are same material.
Rotor provides the moment of momentum needed for gyroscope, forms journal bearing simultaneously, forms thrust bearing with thrust plate, realize radial support and the axial support of hydrodynamic gas-lubricated bearing with axle; Stator passes to the electric current of certain sequential by control mode, produces stator armature magnetic field, with rotor permanent magnet magnetic field interaction, produces the moment needed for motor rotation; Inner nut, outer nut tighten up thrust plate and stator respectively.
Motor adopts back EMF control technology, utilize the positional information of zero crossing as rotor of the back-emf signal of motor self, the conducting of the power tube that control circuit is connected with armature winding for foundation control with this signal and shutoff, thus control the power supply order of armature winding, stator winding is made to produce rotating magnetic field, dragging rotor rotates, and control principle drawing is shown in Fig. 4.Back EMF control mode is adopted to achieve the reliably working of motor.
Claims (1)
1. a bimorph transducer through hole bearing permanent magnet gyro motor, comprise stator, rotor, thrust plate and axle, it is characterized in that: axle coaxial package is in the dead eye of armature spindle bearing sleeve, two thrust plates are arranged on the two ends, left and right of axle respectively by the working method of hydrodynamic gas-lubricated bearing, and fix with inner nut, a stator is installed at the two ends, left and right of rotor respectively, and two stator outer nuts are fixed on axle; Described rotor is made up of bearing holder (housing, cover), magnet steel, rotor ring and magnetic guiding loop, a dead eye is coaxially made in the axle center of bearing holder (housing, cover), bearing holder (housing, cover) is coaxially arranged in rotor ring, the left and right sides symmetry of rotor ring makes two annular mounting groove, the magnet steel that in each annular mounting groove, all coaxially installation one is annular, a magnetic guiding loop is all installed between the outer wall of each magnet steel and rotor ring, between the inwall of each magnet steel and rotor ring, all coaxially clamps an annular stator; Described magnet steel is permanent magnetic multi-pole integral loop magnet steel; Two described stators are connected by line electricity, and the outer end of these two stators is packed on respective bracing frame respectively, and this bracing frame outer nut is fixed on axle;
Described stator is iron-core-free structure, the outer end of stator is arranged on ceramic skeleton, stator winding coil is pasted onto on ceramic skeleton, through integer, die-filling, vacuum glue pouring, solidification, stripping means, winding is sealed, stator winding adopts three-phase Y-connection mode, the winding of a set of independent three-phase loaded onto respectively by two stators in left and right, adopts special control module, conduction mode is two to be conducted six states.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210475936.0A CN102938599B (en) | 2012-11-21 | 2012-11-21 | A kind of bimorph transducer through hole bearing permanent magnet gyro motor |
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| CN201210475936.0A CN102938599B (en) | 2012-11-21 | 2012-11-21 | A kind of bimorph transducer through hole bearing permanent magnet gyro motor |
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| CN102938599A CN102938599A (en) | 2013-02-20 |
| CN102938599B true CN102938599B (en) | 2016-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302026A (en) * | 2018-10-30 | 2019-02-01 | 中国船舶重工集团公司第七0七研究所 | A kind of bicyclic set magnet permanent motor of diametrical magnetization |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595205A (en) * | 2013-10-28 | 2014-02-19 | 中国船舶重工集团公司第七0七研究所 | Dual-motor dragging integral hemisphere bearing gyro machine |
| CN112366844A (en) * | 2020-11-06 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Gyro motor capable of increasing starting torque through new nut positioning structure |
| CN112366891A (en) * | 2020-11-06 | 2021-02-12 | 中国船舶重工集团公司第七0七研究所 | Motor structure for liquid floated gyroscope |
| CN113555998A (en) * | 2021-07-29 | 2021-10-26 | 中国船舶重工集团公司第七0七研究所 | Dynamic pressure air-bearing structure with pollution filtering device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003092867A (en) * | 2001-09-20 | 2003-03-28 | Seiko Instruments Inc | Dynamic pressure bearing spindle motor |
| CN102506840A (en) * | 2011-09-26 | 2012-06-20 | 中国船舶重工集团公司第七0七研究所 | Dynamically tuned gyroscope of high-precision hemispherical dynamic pressure motor |
| CN203014621U (en) * | 2012-11-21 | 2013-06-19 | 中国船舶重工集团公司第七0七研究所 | Double stator through hole bearing permanent magnet gyro motor |
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2012
- 2012-11-21 CN CN201210475936.0A patent/CN102938599B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003092867A (en) * | 2001-09-20 | 2003-03-28 | Seiko Instruments Inc | Dynamic pressure bearing spindle motor |
| CN102506840A (en) * | 2011-09-26 | 2012-06-20 | 中国船舶重工集团公司第七0七研究所 | Dynamically tuned gyroscope of high-precision hemispherical dynamic pressure motor |
| CN203014621U (en) * | 2012-11-21 | 2013-06-19 | 中国船舶重工集团公司第七0七研究所 | Double stator through hole bearing permanent magnet gyro motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302026A (en) * | 2018-10-30 | 2019-02-01 | 中国船舶重工集团公司第七0七研究所 | A kind of bicyclic set magnet permanent motor of diametrical magnetization |
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| CN102938599A (en) | 2013-02-20 |
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Inventor after: Chen Jinlai Inventor after: Li Decai Inventor after: Yang Fengying Inventor after: Zhao Xiaoming Inventor after: Qi Guohua Inventor after: Guo Deqing Inventor before: Chen Jinlai Inventor before: Li Decai Inventor before: Yang Fengying Inventor before: Qi Guohua Inventor before: Guo Deqing |
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