CN214429399U - Bearingless permanent magnet sheet motor - Google Patents
Bearingless permanent magnet sheet motor Download PDFInfo
- Publication number
- CN214429399U CN214429399U CN202120613023.5U CN202120613023U CN214429399U CN 214429399 U CN214429399 U CN 214429399U CN 202120613023 U CN202120613023 U CN 202120613023U CN 214429399 U CN214429399 U CN 214429399U
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- Prior art keywords
- permanent magnet
- rotor
- base
- suspension
- ring
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- Expired - Fee Related
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Abstract
The utility model relates to a bearingless permanent magnet slice motor, which comprises a base, wherein the inside of the base is positioned at the center of the base and is provided with a rotor, the outside of the rotor is provided with a suspension winding assembly fixed inside the base, the outside of the suspension winding assembly is provided with a stator core arranged inside the base, the top of the suspension winding assembly is positioned above the rotor and is provided with a spacing ring, the side wall of the spacing ring is provided with a plurality of torque winding assemblies fixedly connected with the stator core, the rotor comprises a cross-shaped slice rotor body, the top of the cross-shaped slice rotor body is provided with a turntable integrally formed with the cross-shaped slice rotor body, and the top of the turntable is provided with a reinforcing disc integrally formed with the turntable; the utility model discloses a "ten" type thin slice rotor body rotates, and its magnetism that produces on to suspension winding subassembly and torque winding post subassembly is felt the line and is cut, has formed permanent magnetism return circuit to realize the steady operation of motor, rotor body sets to the structure of "ten" type thin slice with carousel and reinforcing disc, has improved the reliability and the axial stiffness of rotor.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a bearingless permanent magnetism thin slice motor.
Background
The magnetic suspension bearing is a high-performance bearing which utilizes a magnetic field to suspend a rotor in a space and realizes no mechanical contact between the rotor and a stator, and the magnetic suspension bearing is widely applied to the fields of machining, energy storage and the like because of a series of advantages of no friction, no abrasion, no need of lubrication, high speed, high precision and the like. The bearingless sheet motor is a novel motor combining a magnetic suspension bearing with a bearingless technology, a magnetic field is generated by utilizing the combined action of two sets of different pole pair windings (a torque winding and a suspension force winding) in a stator slot, and the size and the direction of the suspension force can be controlled by controlling the size and the direction of a superposed synthetic magnetic field, so that the stable suspension operation of a motor rotor is realized. In addition, because of the special mechanical structure of the bearingless permanent magnet slice motor, the axial length of the rotor is far smaller than the outer diameter of the rotor, the bearingless permanent magnet slice motor is flaky, and the passive suspension with 3 degrees of freedom (1 axial degree of freedom and 2 torsional degrees of freedom) can be realized according to the minimum magnetic resistance principle. To this end, we propose a bearingless permanent magnet thin-sheet motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above problem that prior art exists, provide a no bearing permanent magnetism thin slice motor.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides a no bearing permanent magnetism thin slice motor, includes the base, the inside of base is located its central department and is equipped with the rotor, the outside of rotor is equipped with the suspension winding subassembly that is fixed in the base inside, the outside of suspension winding subassembly is equipped with installs in the inside stator core of base, and the top that the top of suspension winding subassembly is located the rotor is equipped with the spacing ring, the lateral wall of spacing ring is equipped with a plurality of torque winding subassemblies with stator core fixed connection, the rotor includes "ten" type thin slice rotor body, the top of "ten" type thin slice rotor body is equipped with rather than integrated into one piece's carousel, the top of carousel is equipped with rather than integrated into one piece's reinforcing disc.
Furthermore, the suspension winding assembly comprises a circumferential permanent magnet fixed inside the base, a plurality of suspension windings are arranged outside the circumferential permanent magnet, and a separation ring sleeved on the circumferential permanent magnet is arranged between every two adjacent suspension windings.
Furthermore, the torque winding assembly comprises a radial permanent magnet, one end of the radial permanent magnet is fixed on the outer wall of the limiting ring, the other end of the radial permanent magnet is fixed on the inner wall of the stator core, and a spindle-shaped torque winding is arranged outside the radial permanent magnet.
Furthermore, stator core's top is equipped with rather than integrated into one piece and erects the epitaxial ring at the base top, epitaxial ring is fixed in on the base through a plurality of screws.
Furthermore, a snap ring which is integrally formed with the turntable and is matched with the annular permanent magnet is arranged at the position, close to the edge, of the bottom of the turntable.
The utility model discloses "ten" type thin slice rotor body rotates during the use, it is felt the line to the magnetism that produces on suspension winding subassembly and the torque winding post subassembly and cuts, permanent magnetism return circuit has been formed, thereby realize the steady operation of motor, rotor body sets to the structure that "ten" type thin slice adds carousel and reinforcing disc, the reliability and the axial rigidity of rotor have been improved, and produce the air gap magnetism density that polarity is the same in the air gap between stator core and "ten" type thin slice rotor body, make the motor operation stable, and simple structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
fig. 3 is a schematic structural view of the rotor of the present invention;
fig. 4 is a schematic structural diagram of the base and the suspension winding assembly according to the present invention.
The reference numbers in the figures illustrate: the rotor comprises 1-screw, 2-extension ring, 3-reinforcing disc, 4-stator core, 5-rotary disc, 6-torque winding, 7-suspension winding, 8-radial permanent magnet, 9-limiting ring, 10-separating ring, 11-base, 12-annular permanent magnet, 13- 'cross' -shaped sheet rotor body and 14-snap ring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 4, the embodiment provides a bearingless permanent magnet sheet motor, which includes a base 11, a rotor is arranged at the center of the base 11, a suspension winding assembly fixed inside the base is arranged outside the rotor, a stator core 4 installed inside the base 11 is arranged outside the suspension winding assembly, a limiting ring 9 is arranged above the rotor at the top of the suspension winding assembly, a plurality of torque winding assemblies fixedly connected with the stator core 4 are arranged on the side wall of the limiting ring 9, the rotor includes a cross-shaped sheet rotor body 13, a turntable 5 integrally formed with the cross-shaped sheet rotor body 13 is arranged at the top of the cross-shaped sheet rotor body 13, and a reinforcing disc 3 integrally formed with the turntable 5 is arranged at the top of the turntable 5.
The cross-shaped sheet rotor body 13 rotates to cut magnetic induction lines generated on the suspension winding assembly and the torque winding column assembly to form a permanent magnet loop, so that stable operation of the motor is realized, the rotor body is arranged into a structure of a cross-shaped sheet, a rotating disc 5 and a reinforcing disc 3, reliability and axial rigidity of the rotor are improved, and air gap magnetic density with the same polarity is generated in an air gap between the stator core 4 and the cross-shaped sheet rotor body 13, so that the motor operates stably and is simple in structure.
Preferably, the suspension winding assembly comprises a circumferential permanent magnet 12 fixed inside the base 11, a plurality of suspension windings 7 are arranged outside the circumferential permanent magnet 12, and a separation ring 10 sleeved on the circumferential permanent magnet 12 is arranged between every two adjacent suspension windings 7.
And a separation ring 10 is arranged between the adjacent suspension windings 7 to separate the suspension windings 7, so that a stable magnetic loop is formed, and interference among the groups of suspension windings 7 is avoided.
Preferably, the torque winding assembly comprises a radial permanent magnet 8, one end of the radial permanent magnet is fixed on the outer wall of the limit ring 9, the other end of the radial permanent magnet is fixed on the inner wall of the stator core 4, and a spindle-shaped torque winding 6 is arranged outside the radial permanent magnet 8.
The torque winding 6 is arranged in a spindle-like manner, which generates a symmetrical and uniform magnetic field, thereby ensuring stable operation of the motor.
Preferably, the top of stator core 4 is equipped with rather than integrated into one piece and erect the epitaxial ring 2 at base 11 top, epitaxial ring 2 is fixed in on base 11 through a plurality of screws 1.
Stator core 4 is fixed with base 11 through screw 1, epitaxial ring 2, convenient to detach and maintenance.
Preferably, a snap ring 14 which is integrally formed with the turntable 5 and is matched with the annular permanent magnet 12 is arranged at the bottom of the turntable 5 close to the edge of the turntable.
The rotary disc 5 is connected with the annular permanent magnet 12 through the snap ring 14, so that the problem that the motor cannot stably run due to the fact that the cross-shaped sheet rotor body 13 deviates in the rotating process is avoided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a no bearing permanent magnetism thin slice motor, includes the base, its characterized in that: the utility model discloses a motor rotor, including base, suspension winding subassembly, spacing ring, rotor, stator core, rotor core, stator core, limiting ring, rotor core, limiting ring, rotor core.
2. A bearingless permanent magnet sheet machine according to claim 1, characterized in that: the suspension winding assembly comprises a circumferential permanent magnet fixed inside the base, a plurality of suspension windings are arranged outside the circumferential permanent magnet, and a separation ring sleeved on the circumferential permanent magnet is arranged between every two adjacent suspension windings.
3. A bearingless permanent magnet sheet machine according to claim 1, characterized in that: the torque winding assembly comprises a radial permanent magnet, one end of the radial permanent magnet is fixed on the outer wall of the limiting ring, the other end of the radial permanent magnet is fixed on the inner wall of the stator core, and a spindle-shaped torque winding is arranged outside the radial permanent magnet.
4. A bearingless permanent magnet sheet machine according to claim 1, characterized in that: stator core's top is equipped with rather than integrated into one piece and erects the epitaxial ring at base top, epitaxial ring is fixed in on the base through a plurality of screws.
5. A bearingless permanent magnet sheet machine according to claim 2, characterized in that: and a snap ring which is integrally formed with the turntable and is matched with the annular permanent magnet is arranged at the position, close to the edge, of the bottom of the turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120613023.5U CN214429399U (en) | 2021-03-26 | 2021-03-26 | Bearingless permanent magnet sheet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120613023.5U CN214429399U (en) | 2021-03-26 | 2021-03-26 | Bearingless permanent magnet sheet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214429399U true CN214429399U (en) | 2021-10-19 |
Family
ID=78074797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120613023.5U Expired - Fee Related CN214429399U (en) | 2021-03-26 | 2021-03-26 | Bearingless permanent magnet sheet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214429399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825849A (en) * | 2022-05-23 | 2022-07-29 | 江苏吉宏特专用汽车制造有限公司 | Special automobile vibration energy recovery device |
-
2021
- 2021-03-26 CN CN202120613023.5U patent/CN214429399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114825849A (en) * | 2022-05-23 | 2022-07-29 | 江苏吉宏特专用汽车制造有限公司 | Special automobile vibration energy recovery device |
| CN114825849B (en) * | 2022-05-23 | 2023-02-17 | 江苏吉宏特专用汽车制造有限公司 | Special automobile vibration energy recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |