CN203014621U - Double stator through hole bearing permanent magnet gyro motor - Google Patents
Double stator through hole bearing permanent magnet gyro motor Download PDFInfo
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- CN203014621U CN203014621U CN 201220619767 CN201220619767U CN203014621U CN 203014621 U CN203014621 U CN 203014621U CN 201220619767 CN201220619767 CN 201220619767 CN 201220619767 U CN201220619767 U CN 201220619767U CN 203014621 U CN203014621 U CN 203014621U
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Abstract
The utility model relates to a double stator through hole bearing permanent magnet gyro motor which comprises stators, a rotor, thrust plates and a shaft. The shaft and a shaft sleeve are arranged in a bearing hole of a rotor bearing sleeve. Two thrust plates are respectively arranged at left and right ends of the shaft according to the working mode of a hydrodynamic gas-lubricated bearing and are fixed through inner nuts. Stators are respectively arranged at left and right ends of the rotor. The two stators are fixed on the shaft through outer nuts. According to the utility model, the double stator through hole bearing permanent magnet gyro motor has the advantages of scientific design and reasonable structure; the double stator through hole type hydrodynamic gas-lubricated bearing three-phase permanent magnet motor without a position sensor is applied in the field of gyros; the precision of a gyro and an inertial navigation system are obviously improved; and the double stator through hole bearing permanent magnet gyro motor has an advanced technology and fills the gap of the technology in China.
Description
Technical field
The utility model relates to gyroscope field, especially a kind of pair of stator 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 satisfy the required moment of momentum of gyroscope.Stator connects firmly with axle at internal rotor.Settle permanent magnetic steel on rotor, settle winding coil on 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 reach synchronous regime.Mainly there is following defective in existing this traditional permanent magnet gyro motor: 1, stator adopts devitrified glass ceramics processing, coil directly sticks on the devitrified glass ceramics stator frame, then coordinates, glueds joint sealing with the outer cover that is equally ceramic material of microcrystalline glass processing.Because devitrified glass ceramics material hole is large, clean difficulty, therefore seriously polluted to hydrodynamic gas-lubricated bearing, easily cause hydrodynamic gas-lubricated bearing to lose efficacy.
2, rotor is comprised of two bearing caps, rotor ring, magnet steel and shading rings.At first, magnet steel and shading ring are installed on rotor, form rotor assembly, and then two bearing caps are placed in respectively rotor assembly both sides, by seam and screw location, are connected with rotor assembly, obtain rotor.Bearing is the Split type structure, the diplopore journal bearing.Two bearings is placed on two bearing caps, and dead eye and axle consist of journal bearing, bearing cap end face and thrust plate formation thrust bearing.Bearing cap and rotor have change in location after long-time the use, vibration are arranged with seam and screw location, and concentricity is difficult to guarantee, processing, grind, assembling is complicated, easily changes during mounting or dismounting, and is large on the unbalancing value impact, causes accuracy of instrument to change.
3, be not commaterial due to rotor and bearing parts, its coefficient of linear expansion is inconsistent, and influence of thermal deformation is large, easily causes bearing axial clearance to change, and causes the even bearing failure of bearing performance variation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple and reliable for structure, and processing, assembling are easy, and bearing accuracy, performance are easy to guarantee, two stator through hole bearing permanent magnet gyro motors that the motor reliability is high.This motor adopts through hole bearing, two stator motor to solve bearing and is subjected to stator pollution and bearing clearance variation issue.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of pair of stator through hole bearing permanent magnet gyro motor, comprise stator, rotor, thrust plate and axle, it is characterized in that: the axle coaxial package is in the dead eye of armature spindle bearing sleeve, two thrust plates are arranged on respectively the two ends, left and right of axle by the working method of hydrodynamic gas-lubricated bearing, and fix with inner nut, a stator is installed respectively at the two ends, left and right of rotor, and these two stators are fixed on axle with outer nut.
And, described rotor is made of bearing holder (housing, cover), magnet steel, rotor ring and magnetic guiding loop, the axle center of bearing holder (housing, cover) is coaxial makes a dead eye, bearing holder (housing, cover) is coaxial to be arranged in rotor ring, the left and right sides symmetry of rotor ring is made two annular mounting groove, equal magnet steel of an annular of coaxial installation in each annular mounting groove is all installed a magnetic guiding loop between the outer wall of each magnet steel and rotor ring, equal coaxial stator that clamps an annular between the inwall of each magnet steel and rotor ring.
And described magnet steel is permanent magnetic multi-pole integral loop magnet steel.
And described two stators connect by line electricity, and the outer end of these two stators is packed in respectively on separately bracing frame, and this bracing frame is fixed on axle with outer nut.
And, described stator is the iron-core-free structure, the outer end of stator is arranged on ceramic skeleton, stator winding coil sticks on ceramic skeleton, through modes such as integer, dress mould, vacuum glue pouring, curing, the demouldings, winding is sealed, stator winding adopts three-phase Y-connection mode, loads onto respectively the winding of an independent three-phase of cover on the stator of two of left and right, adopt special-purpose control module, conduction mode is two six states that are conducted.
Advantage of the present utility model and beneficial effect are:
1, the stator of this motor is the iron-core-free structure, selects the good pottery of compactness as the skeleton backing material, and stator winding coil sticks on ceramic skeleton, through modes such as integer, dress mould, vacuum glue pouring, curing, the demouldings, winding is sealed.This processing method can guarantee that stator surface is smooth, easy cleaning, can reduce the pollution to bearing, the useful life of prolongation bearing.
2, because stator is the iron-core-free structure, therefore there is no iron loss during machine operation, can reduce motor power consumption, and can increase the machine operation air gap flux density by improving the magnet steel performance, can reduce the motor umber of turn, increase simultaneously winding wire diameter, can effectively reduce resistance, 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, can eliminate the unsettled defective of multi-pole ring barycenter that the polylith magnet steel forms, and the rotor global level is high.Rotor ring and magnetic guiding loop all select the coefficient of expansion and magnet steel near material simultaneously, make magnet steel, magnetic guiding loop and rotor ring consist of a rigid body, guarantee 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 the radial fit mode, locate without seam cooperation, screw, make that rotor structure rigidity is large, good stability, in the Split type bearing arrangement, the two bearings hole is replaced by a through hole in the through hole bearing arrangement, add and easily guarantee concentricity man-hour, during mounting or dismounting, bearing parameter is unaffected, has improved the consistency of axis of angular momentum and motor drive shaft; The bearing machining consistent size is good, after rotation is got up, bearing deformation will be much smaller than the Split type structure, under Static and dynamic, the bearing clearance can guarantee constant, so the axial rigidity of bearing easily is guaranteed, and Flexibility Difference is little has reduced gyrostatic unequal rigidity, can effectively reduce gyroscope and acceleration square relevant coefficient of deviation, thereby effectively improve gyro anti-vibration ability.
5, the utility model is a kind of design science, two stator through hole bearing permanent magnet gyro motors rational in infrastructure, the design has realized that two stator through hole type hydrodynamic gas-lubricated bearing three-phase motor with permanent magnets of position-sensor-free are in the application in gyroscope field, the precision of gyroscope and inertial navigation system all is significantly improved, its advanced technology, has filled up the blank of China at technique.
Description of drawings
Fig. 1 is the schematic diagram that partly cuts open of the present utility model;
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
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection range of the present utility model with this.
A kind of pair of stator through hole bearing permanent magnet gyro motor comprises stator 2, rotor 1, thrust plate 3 and axle 4.innovative point of the present utility model is: rotor is by bearing holder (housing, cover) 7, magnet steel 8, rotor ring 9 and magnetic guiding loop 10 consist of, bearing holder (housing, cover) is coaxial to be arranged in rotor ring, the left and right sides symmetry of rotor ring is made two annular mounting groove, equal magnet steel of an annular of coaxial installation in each annular mounting groove, this magnet steel is permanent magnetic multi-pole integral loop magnet steel, a magnetic guiding loop all is 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 near material, make magnet steel, magnetic guiding loop and rotor ring have consisted of a rigid body, guarantee the stability of rotor centroid.Equal coaxial stator that clamps an annular between the inwall of each magnet steel and rotor ring, these two stators connect by line electricity.The outer end of two stators is packed in respectively on separately bracing frame 11, and bracing frame is generally metal frame, and this bracing frame is fixed on axle with outer nut 6.
Stator is the iron-core-free structure, stator is arranged on ceramic skeleton, stator winding coil sticks on ceramic skeleton, through modes such as integer, dress mould, vacuum glue pouring, curing, the demouldings, winding is sealed, stator winding adopts three-phase Y-connection mode, considers electric machine structure vertically and symmetry radially, loads onto respectively the winding of an independent three-phase of cover on the stator of two of left and right, adopt special-purpose control module, conduction mode is two six states that are conducted.On two stators independently three phase windings observe the rule of three phase electric machine winding.
Bearing is through hole type hydrodynamic gas-lubricated bearing (as shown in Figure 3), the axle center of bearing holder (housing, cover) is coaxial makes an axial dead eye, the axle coaxial package is in this dead eye, bearing holder (housing, cover) endoporus and axle consist of journal bearing, two thrust plates are arranged on respectively the two ends, left and right of axle by the working method of hydrodynamic gas-lubricated bearing, and fixing with inner nut 5, bearing holder (housing, cover) both ends of the surface and thrust plate consist of thrust bearing, and bearing holder (housing, cover), axle and thrust plate are same material.
Rotor provides gyroscope the required moment of momentum, forms journal bearing, forms thrust bearing with thrust plate with axle simultaneously, realizes radial support and the axial support of hydrodynamic gas-lubricated bearing; Stator passes to the electric current of certain sequential by control mode, produce stator armature magnetic field, with the rotor permanent magnet magnetic field interaction, produces the required moment of motor rotation; Inner nut, outer nut tighten up respectively thrust plate and stator.
Motor adopts the back EMF control technology, utilize the zero crossing of back-emf signal of motor self as the positional information of rotor, control circuit is controlled conducting and the shutoff of the power tube that is connected with armature winding take this signal as foundation, thereby control the power supply order of armature winding, make stator winding produce rotating magnetic field, drag rotor, control principle drawing is seen Fig. 4.Adopt the back EMF control mode to realize the reliably working of motor.
Claims (5)
1. two stator through hole bearing permanent magnet gyro motor, comprise stator, rotor, thrust plate and axle, it is characterized in that: the axle coaxial package is in the dead eye of armature spindle bearing sleeve, two thrust plates are arranged on respectively the two ends, left and right of axle by the working method of hydrodynamic gas-lubricated bearing, and fix with inner nut, a stator is installed respectively at the two ends, left and right of rotor, and these two stators are fixed on axle with outer nut.
2. according to claim 1 pair of stator through hole bearing permanent magnet gyro motor, it is characterized in that: described rotor is made of bearing holder (housing, cover), magnet steel, rotor ring and magnetic guiding loop, the axle center of bearing holder (housing, cover) is coaxial makes a dead eye, bearing holder (housing, cover) is coaxial to be arranged in rotor ring, the left and right sides symmetry of rotor ring is made two annular mounting groove, equal magnet steel of an annular of coaxial installation in each annular mounting groove, a magnetic guiding loop all is installed, equal coaxial stator that clamps an annular between the inwall of each magnet steel and rotor ring between the outer wall of each magnet steel and rotor ring.
3. according to claim 2 pair of stator through hole bearing permanent magnet gyro motor, it is characterized in that: described magnet steel is permanent magnetic multi-pole integral loop magnet steel.
4. according to claim 1 pair of stator through hole bearing permanent magnet gyro motor, it is characterized in that: described two stators connect by line electricity, and the outer end of these two stators is packed in respectively on separately bracing frame, and this bracing frame is fixed on axle with outer nut.
5. according to claim 1 or 4 described pairs of stator through hole bearing permanent magnet gyro motors, it is characterized in that: described stator is the iron-core-free structure, the outer end of stator is arranged on ceramic skeleton, stator winding coil sticks on ceramic skeleton, through modes such as integer, dress mould, vacuum glue pouring, curing, the demouldings, winding is sealed, stator winding adopts three-phase Y-connection mode, load onto respectively the winding of an independent three-phase of cover on the stator of two of left and right, adopt special-purpose control module, conduction mode is two six states that are conducted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220619767 CN203014621U (en) | 2012-11-21 | 2012-11-21 | Double stator through hole bearing permanent magnet gyro motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220619767 CN203014621U (en) | 2012-11-21 | 2012-11-21 | Double stator through hole bearing permanent magnet gyro motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014621U true CN203014621U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220619767 Expired - Lifetime CN203014621U (en) | 2012-11-21 | 2012-11-21 | Double stator through hole bearing permanent magnet gyro motor |
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| CN (1) | CN203014621U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938599A (en) * | 2012-11-21 | 2013-02-20 | 中国船舶重工集团公司第七0七研究所 | Permanent magnet gyro motor with double stators and through-hole bearing |
| CN105659473A (en) * | 2013-07-31 | 2016-06-08 | 罗伯特·博世有限公司 | Rotor for an electric motor and method for producing the rotor |
| CN110492638A (en) * | 2019-08-28 | 2019-11-22 | 河北科技大学 | Multi-freedom electric motor |
-
2012
- 2012-11-21 CN CN 201220619767 patent/CN203014621U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938599A (en) * | 2012-11-21 | 2013-02-20 | 中国船舶重工集团公司第七0七研究所 | Permanent magnet gyro motor with double stators and through-hole bearing |
| CN102938599B (en) * | 2012-11-21 | 2016-04-27 | 中国船舶重工集团公司第七0七研究所 | A kind of bimorph transducer through hole bearing permanent magnet gyro motor |
| CN105659473A (en) * | 2013-07-31 | 2016-06-08 | 罗伯特·博世有限公司 | Rotor for an electric motor and method for producing the rotor |
| CN110492638A (en) * | 2019-08-28 | 2019-11-22 | 河北科技大学 | Multi-freedom electric motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |