CN211791026U - Magnetic suspension motor end cover special for bearingless motor - Google Patents
Magnetic suspension motor end cover special for bearingless motor Download PDFInfo
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- CN211791026U CN211791026U CN201922105998.2U CN201922105998U CN211791026U CN 211791026 U CN211791026 U CN 211791026U CN 201922105998 U CN201922105998 U CN 201922105998U CN 211791026 U CN211791026 U CN 211791026U
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Abstract
The utility model discloses a special magnetic suspension motor end cover of bearingless motor. Belongs to the technical field of manufacturing of bearing-free motor parts. The end cover mainly provides a magnetic suspension motor end cover special for a bearingless motor. It is mainly characterized in that: the magnetic suspension bearing comprises a motor end cover, a magnetic suspension bearing cover and a magnetic suspension bearing assembly; the magnetic suspension bearing cover is coaxially installed and fixed on the end face of the outer side of the motor end cover; the magnetic suspension bearing assembly is fixedly arranged on the magnetic suspension bearing cover. The utility model discloses simple structure is novel, and the leakproofness is good, and the special magnetic suspension motor end cover of bearingless motor can replace the bearing, and is the same basically with the end cover of original motor, has reduced axial length and volume and weight than current bearingless motor, and the magnetic suspension motor end cover special for realizing bearingless motor has the significance in motor industrial application.
Description
Technical Field
The utility model belongs to the technical field of no bearing motor part makes, relate to and cover the special magnetic suspension motor end cover of various types of motor power no bearing moving no bearing motor, specifically be a special magnetic suspension motor end cover of no bearing motor.
Background
The magnetic suspension motor end cover special for the bearingless motor is a novel bearing-free, friction-free, resistance-free and low-noise motor universal end cover. The bearingless motor is currently divided into three types, namely a reluctance type bearingless motor, an induction type bearingless motor and a permanent magnet type bearingless motor, the traditional permanent magnet type bearingless motor has three magnetic fields, namely a torque winding magnetic field, a suspension winding magnetic field and a rotor permanent magnet magnetic field, and suspension force is generated by the suspension winding magnetic field and the rotor permanent magnet magnetic field to realize stable suspension and rotation of a rotor. The bearingless motor realizes suspension operation, the axial length of the suspension motor is increased by the axial magnetic suspension bearing, and the critical rotating speed and the power density are reduced.
Disclosure of Invention
The utility model aims at providing a need not to increase the axial length of suspension motor, avoid reducing critical speed and power density's special magnetic suspension motor end cover of no bearing motor.
The technical solution of the utility model is that: the utility model provides a special magnetic suspension motor end cover of bearingless motor which characterized in that: the magnetic suspension bearing comprises a motor end cover, a magnetic suspension bearing cover and a magnetic suspension bearing assembly; the magnetic suspension bearing cover is coaxially installed and fixed on the end face of the outer side of the motor end cover; the magnetic suspension bearing assembly is fixedly arranged on the magnetic suspension bearing cover.
The magnetic suspension bearing assembly in the technical solution of the utility model comprises a magnetic steel outer ring frame, a magnetic steel outer ring magnetic steel sheet fixed on the magnetic steel outer ring frame at intervals, a magnetic steel shaft ring frame and a magnetic steel shaft ring magnetic steel sheet fixed on the magnetic steel shaft ring frame at intervals; and a magnetic suspension gap is arranged between the steel outer ring magnetic steel sheet and the magnetic steel shaft ring magnetic steel sheet, and the magnetism is the same.
The utility model adopts the technical proposal that the inner circle surface of the magnetic steel outer ring frame is provided with outer ring frame magnetic steel groove walls at intervals, and a magnetic steel outer ring magnetic steel sheet mounting groove is formed between the outer ring frame magnetic steel groove walls; the outer circle surface of the magnetic steel shaft ring frame is provided with shaft ring frame magnetic steel groove walls at intervals, and magnetic steel shaft ring magnetic steel sheet mounting grooves are formed between the shaft ring frame magnetic steel groove walls; the magnetic steel outer ring magnetic steel sheet and the magnetic steel shaft ring magnetic steel sheet are installed with NN magnetic poles opposite or SS magnetic poles opposite.
The technical solution of the utility model in magnetic suspension bearing assembly and magnetic suspension bearing cover between be equipped with surplus design complex concave ring groove and protruding ring of pressing, form wholly through hot cover and cold cover dual mode pressfitting.
In the technical solution of the utility model, a water stop ring is arranged on the magnetic suspension bearing cover; the inner side surface of the motor end cover is provided with a motor end cover water stop ring which can be matched with a motor end cover seam allowance on the motor shell, and the outer side surface of the motor end cover is provided with a magnetic suspension bearing cover seam allowance which is matched with the magnetic suspension bearing cover water stop ring.
The technical solution of the utility model also comprises a motor main shaft; a magnetic steel shaft collar key groove is formed in the surface of the inner circle of the magnetic steel shaft collar frame, and a matched spindle key groove is formed in the surface of the outer circle of the motor spindle; the magnetic steel shaft collar frame and the motor spindle are integrated into a whole by being glued and assembled by a stainless steel annular key pressed into a magnetic steel shaft collar key groove and a spindle key groove.
The technical solution of the utility model is that the water stop ring and the spigot of the magnetic suspension bearing cap are glued and pressed; and the motor end cover and the magnetic suspension bearing cover are locked through a magnetic suspension bearing cover bolt.
The technical solution of the utility model is that the magnetic steel outer ring frame and the magnetic steel shaft ring frame are made of pure iron.
The beneficial effects of the utility model reside in that: the purpose that the end cover of the special magnetic suspension motor for the bearingless motor is provided with no ball bearing is achieved; secondly, the end cover of the magnetic suspension motor special for the axial magnetic suspension bearingless integrated bearingless motor is realized; thirdly, the novel and simple structure is the original scheme; fourthly, the motor has good sealing performance, the electrified motor can normally rotate without obstacles, the design of magnetic density air gap suspension force with mutual repulsion of axial magnetism is designed, and stable suspension is reliable without any auxiliary measures; and fifthly, the magnetic suspension motor end cover special for the bearingless motor can replace a bearing, is basically the same as the end cover of the original motor, reduces the axial length, the volume and the weight compared with the existing bearingless motor, and has important significance for realizing the application of the magnetic suspension motor end cover special for the bearingless motor in the motor industry.
Drawings
FIG. 1 is an axial plan view of a magnetic bearing assembly.
FIG. 2 is a radial plan view of a magnetic bearing assembly.
Fig. 3 is an axial plan view of the motor end cover.
FIG. 4 is an axial plan view of a magnetic bearing assembly.
Fig. 5 is an axial plan view of the magnetic bearing cap.
In the figure: 1. a magnetic suspension bearing assembly; 2. a magnetic steel outer ring frame; 3. a magnetic steel collar bracket; 4. magnetic steel outer ring magnetic steel sheet; 5. the magnetic steel shaft ring is a magnetic steel sheet; 6. the magnetic steel groove wall of the outer ring frame; 7. the magnetic steel groove wall of the shaft collar frame; 8. a magnetic suspension bearing cover; 9. a spigot of the magnetic suspension bearing cover; 10. a water stop ring; 11. pressing a ring in a protruding way; 12. a concave pressing ring groove; 13. a magnetic steel collar key slot; 14. a spindle annular keyway; 15. a magnetic bearing cover bolt; 16. a motor end cover; 17. a motor end cover spigot; 18. a water stop ring of the motor end cover; 19. a motor end cover bolt; 20. a motor housing; 21. a motor spindle; 22. stainless steel annular keys.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Examples are shown in figures 1 to 5. The embodiment of the utility model provides a include the special magnetic suspension motor end cover of integral bearingless motor that comprises motor end cover 16, magnetic suspension bearing cap 8 and magnetic suspension bearing assembly 1.
The magnetic suspension bearing assembly 1 comprises a pure iron magnetic steel outer ring frame 2, a pure iron magnetic steel shaft ring frame 3, a magnetic steel outer ring magnetic steel sheet 4 and a magnetic steel shaft ring magnetic steel sheet 5. The inner circle surface of the magnetic steel outer ring frame 2 is provided with outer ring frame magnetic steel groove walls 6 at intervals, a magnetic steel outer ring magnetic steel sheet installation groove is formed between the outer ring frame magnetic steel groove walls 6, and the magnetic steel outer ring magnetic steel sheet 4 is fixed in the magnetic steel outer ring magnetic steel sheet installation groove on the magnetic steel outer ring frame 2. The outer circle surface of the magnetic steel shaft ring frame 3 is provided with shaft ring frame magnetic steel groove walls 7 at intervals, magnetic steel shaft ring magnetic steel sheet mounting grooves are formed among the shaft ring frame magnetic steel groove walls 7, and the magnetic steel shaft ring magnetic steel sheets 5 are fixed in the magnetic steel shaft ring magnetic steel sheet mounting grooves on the magnetic steel shaft ring frame 3. The main functions of the magnetic steel outer ring frame 2 and the magnetic steel shaft ring frame 3 are to fix the magnetic steel and uniformly diffuse magnetic force and magnetic density. And a magnetic suspension gap is arranged between the steel outer ring magnetic steel sheet 4 and the magnetic steel shaft ring magnetic steel sheet 5, and the magnetism is the same. The magnetic steel outer ring magnetic steel sheet 4 and the magnetic steel shaft ring magnetic steel sheet 5 are installed with NN magnetic poles opposite or SS magnetic poles opposite, and the magnetic suspension purpose is achieved by applying the principle that like poles repel each other.
The magnetic suspension bearing cover 8 is a cover body with a circular inner groove, a motor spindle penetrating hole is formed in the center of the cover body at the bottom of the groove, an annular step groove with an open outer diameter is formed in the end portion of the cover body at the side of the groove, and a water stop ring 10 is formed on the inner wall of the annular step groove. The annular step groove is provided with bolt holes, and the magnetic suspension bearing cover 8 is coaxially installed and fixed on the end face of the outer side of the motor end cover 16 through magnetic suspension bearing cover bolts 15.
The magnetic steel outer ring frame 2 of the magnetic suspension bearing assembly 1 is provided with a concave pressure ring groove 12, and the magnetic suspension bearing cover 8 is provided with a convex pressure ring 11 matched with the concave pressure ring groove. The magnetic suspension bearing assembly 1 is designed to be surplus, firstly, the magnetic suspension bearing cover 8 presses the magnetic suspension bearing assembly 1 into the magnetic suspension bearing cover 8 in a hot sleeve mode and a cold sleeve mode, the convex pressing ring 11 and the concave pressing ring groove 12 are glued and compacted, the main functions of the convex pressing ring and the concave pressing ring are used for fastening the magnetic steel outer ring frame 2 made of pure iron, and the magnetic suspension bearing assembly has the effect that a motor stator is fixed.
The center of the motor end cover 16 is provided with a motor spindle through hole corresponding to the motor spindle through hole on the magnetic suspension bearing cover 8. The outer side face of the motor end cover 16 is provided with a magnetic suspension bearing cover spigot 9 matched with a water stop ring 10 on a magnetic suspension bearing cover 8, the water stop ring 10 and the magnetic suspension bearing cover spigot 9 are glued and pressed, a magnetic suspension bearing cover bolt 15 is locked, and the main functions of the water stop ring and the magnetic suspension bearing cover bolt are waterproof and stronger in integrity. The inner side surface of the motor end cover 16 is provided with a motor end cover water stop ring 18 which can be matched with the motor end cover spigot 17 on the motor shell 20, and the water stop ring 18 is pressed with the motor end cover spigot 17. The motor end cover 16 is provided with bolt holes and is locked on the motor shell 20 through motor end cover bolts 19.
The magnetic steel shaft collar key groove 13 is arranged on the inner circle surface of the magnetic steel shaft collar frame 3, and the matched main shaft key groove 14 is arranged on the outer circle surface of the motor main shaft 21. And (3) pressing the pressed motor end cover 16 and the motor spindle 21 together, and pressing the magnetic steel shaft ring key groove 13 and the spindle key groove 14 into the stainless steel ring key 22 for gluing for later use before combination. The stainless steel annular key 22 has the main functions of magnetic isolation and protection, is fixed on the motor main shaft 21, is in the shape of a rotor and plays a role of rotating integrally with the motor main shaft 21. The motor spindle 21 is designed with a proper amount of surplus and pressed into a stainless steel annular key 22 with a magnetic steel shaft ring frame 3, a magnetic steel shaft ring key groove 13 and a spindle key groove 14 of pure iron in the magnetic suspension bearing assembly 1 to be glued together by using a press machine to be pressed and integrated with the motor spindle 21; and the other side is mounted in a common mode after the rotor and the stator of the motor are pressed.
The working principle of the utility model is as follows: the magnetic suspension system mainly adopts a matched motor to be used as an end cover part of the motor to be intervened, after the motor is started, a motor spindle 21 rotates to directly drive a magnetic steel shaft ring frame 3 and a magnetic steel shaft ring magnetic steel sheet 5 to rotate simultaneously, the magnetic steel shaft ring frame and the magnetic steel shaft ring magnetic steel sheet form a uniform diffusion magnetic force and magnetic density to form a magnetic field with the same polarity to construct a magnetic suspension state, air gap magnetic density is mutually exclusive, NN magnetic poles of the magnetic suspension system and the magnetic density of the magnetic suspension system are arranged opposite or SS magnetic poles of the magnetic suspension system are arranged opposite, the magnetic suspension purpose is achieved by applying the principle that the magnetic fields are mutually exclusive, an air gap operation space is established, and the magnetic suspension system is free of noise and good working condition.
The utility model discloses special magnetic suspension motor end cover of bearingless motor mainly used various types of motor power and generator and industrial civil motors such as aerogenerator.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and it will be understood by those skilled in the art that various changes, modifications and variations can be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a special magnetic suspension motor end cover of bearingless motor which characterized in that: comprises a motor end cover (16), a magnetic suspension bearing cover (8) and a magnetic suspension bearing assembly (1); the magnetic suspension bearing cover (8) is coaxially mounted and fixed on the end face of the outer side of the motor end cover (16); the magnetic suspension bearing assembly (1) is fixedly arranged on a magnetic suspension bearing cover (8).
2. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 1, wherein: the magnetic suspension bearing assembly (1) comprises a magnetic steel outer ring frame (2), magnetic steel outer ring magnetic steel sheets (4) fixed on the magnetic steel outer ring frame (2) at intervals, a magnetic steel shaft ring frame (3) and magnetic steel shaft ring magnetic steel sheets (5) fixed on the magnetic steel shaft ring frame (3) at intervals; and a magnetic suspension gap is arranged between the steel outer ring magnetic steel sheet (4) and the magnetic steel shaft ring magnetic steel sheet (5), and the magnetism is the same.
3. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 2, wherein: the inner circle surface of the magnetic steel outer ring frame (2) is provided with outer ring frame magnetic steel groove walls (6) at intervals, and a magnetic steel outer ring magnetic steel sheet (4) mounting groove is formed between the outer ring frame magnetic steel groove walls (6); the outer circle surface of the magnetic steel shaft ring frame (3) is provided with shaft ring frame magnetic steel groove walls (7) at intervals, and magnetic steel shaft ring magnetic steel sheet (5) installation grooves are formed between the shaft ring frame magnetic steel groove walls (7); the magnetic steel outer ring magnetic steel sheet (4) and the magnetic steel shaft ring magnetic steel sheet (5) are installed in a mode that NN magnetic poles are opposite or SS magnetic poles are opposite.
4. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 1 or 2, wherein: a concave pressing ring groove (12) and a convex pressing ring groove (11) which are designed and matched in surplus are arranged between the magnetic suspension bearing assembly (1) and the magnetic suspension bearing cover (8), and the magnetic suspension bearing assembly is pressed into a whole through a hot sleeve mode and a cold sleeve mode.
5. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 1 or 2, wherein: a water stop ring (10) is arranged on the magnetic suspension bearing cover (8); the inner side surface of the motor end cover (16) is provided with a motor end cover water stop ring (18) which can be matched with the motor end cover seam allowance (17) on the motor shell (20), and the outer side surface is provided with a magnetic suspension bearing cover seam allowance (9) which is matched with the magnetic suspension bearing cover (8) upper water stop ring (10).
6. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 2, wherein: also comprises a motor spindle (21); a magnetic steel shaft collar key groove (13) is formed in the inner circle surface of the magnetic steel shaft collar frame (3), and a main shaft key groove (14) matched with the outer circle surface of the motor main shaft (21) is formed in the outer circle surface of the motor main shaft; the magnetic steel shaft collar frame (3) and the motor spindle (21) are integrated into a whole by being glued and combined into a whole through a stainless steel annular key (22) pressed into a magnetic steel shaft collar key groove (13) and a spindle key groove (14).
7. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 5, wherein: the water stop ring (10) and the magnetic suspension bearing cover spigot (9) are glued and pressed; the motor end cover (16) and the magnetic suspension bearing cover (8) are locked through magnetic suspension bearing cover bolts (15).
8. The end cover of the magnetic suspension motor special for the bearingless motor as claimed in claim 2, wherein: the magnetic steel outer ring frame (2) and the magnetic steel shaft ring frame (3) are made of pure iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105998.2U CN211791026U (en) | 2019-11-29 | 2019-11-29 | Magnetic suspension motor end cover special for bearingless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105998.2U CN211791026U (en) | 2019-11-29 | 2019-11-29 | Magnetic suspension motor end cover special for bearingless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211791026U true CN211791026U (en) | 2020-10-27 |
Family
ID=72962137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922105998.2U Active CN211791026U (en) | 2019-11-29 | 2019-11-29 | Magnetic suspension motor end cover special for bearingless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211791026U (en) |
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2019
- 2019-11-29 CN CN201922105998.2U patent/CN211791026U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220125 Address after: 202157 room 103-9, 1st floor, building 24, No. 58, Baozhen South Road, Baozhen, Chongming District, Shanghai (Shanghai Baozhen economic community) Patentee after: Shanghai jucaigu New Energy Technology Co.,Ltd. Address before: Room 405, School of continuing education, Dalian University of technology, No. 311, Huabei Road, Shahekou District, Dalian City, Liaoning Province Patentee before: Wang Yilin |