CN212811408U - Permanent magnet motor rotor - Google Patents
Permanent magnet motor rotor Download PDFInfo
- Publication number
- CN212811408U CN212811408U CN202021889195.7U CN202021889195U CN212811408U CN 212811408 U CN212811408 U CN 212811408U CN 202021889195 U CN202021889195 U CN 202021889195U CN 212811408 U CN212811408 U CN 212811408U
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- rotor
- permanent magnet
- solid shaft
- magnetic steel
- cylinder
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- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A permanent magnet motor rotor belongs to the field of motors and solves the technical problem that the traditional permanent magnet motor rotor is connected through keys to cause process complexity and the like. The solution is as follows: a permanent magnet motor rotor comprises a rotor core, a cylindrical rotating shaft and a plurality of magnetic steels; the cylindrical rotating shaft comprises a solid shaft, a plurality of circular supporting plates and a cylinder sleeved outside the circular supporting plates, and the solid shaft is arranged in the solid shaft through holes of the circular supporting plates; the rotor core is sleeved on the outer side of the cylinder, a group of pressure plates are arranged on two sides of the rotor core respectively, the rotor core is formed by stacking a plurality of rotor punching sheets, a plurality of magnetic steel embedded grooves are uniformly distributed in the circumferential direction of the position, close to the outer edge, of each rotor punching sheet, and the magnetic steel is arranged in the magnetic steel embedded grooves of the rotor punching sheets. The utility model discloses the setting of well cylinder pivot, pivot rigidity is high, and pivot gross weight and inertia are little, have cancelled traditional key-type connection, have obvious advantage in the aspect of manufacturability and reliability.
Description
Technical Field
The utility model belongs to the motor field, concretely relates to permanent-magnet machine rotor.
Background
With the development of control technology, power electronic technology and high-performance permanent magnet material technology, the permanent magnet motor receives more and more attention of people, and compared with other motors such as the traditional electrically excited motor, the permanent magnet motor has the advantages of high output density, high efficiency, convenience in maintenance, simple structure and the like.
The traditional permanent magnet motor rotor punching sheet mostly adopts an integrated structure, the structure is low in material utilization rate, a rotor core and a rotating shaft are generally connected through keys, and the key grooves are formed, so that the process complexity is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's shortcoming, provide a permanent-magnet machine rotor, solved traditional permanent-magnet machine rotor and adopted the key-type connection to cause technical problem such as technology complexity.
In order to solve the above problem, the technical scheme of the utility model is that: a permanent magnet electric machine rotor, wherein: the rotor comprises a rotor iron core, a cylindrical rotating shaft and a plurality of magnetic steels;
the cylindrical rotating shaft comprises a solid shaft, a plurality of circular supporting plates arranged in parallel and a cylinder sleeved outside the circular supporting plates, wherein a solid shaft through hole is formed in the center of each circular supporting plate, and the solid shaft is arranged in the solid shaft through holes of the circular supporting plates;
the rotor core is sleeved on the outer side of the cylinder, a group of pressure plates are arranged on two sides of the rotor core respectively, the rotor core is formed by stacking a plurality of rotor punching sheets, a plurality of magnetic steel embedded grooves are uniformly distributed in the circumferential direction of the position, close to the outer edge, of each rotor punching sheet, and the magnetic steel is arranged in the magnetic steel embedded grooves of the rotor punching sheets.
Furthermore, a plurality of slotted holes are uniformly distributed on the side surface of the round supporting plate.
Furthermore, the rotor punching sheet is formed by splicing a plurality of groups of sector rotor punching sheets which are separated along the central line of the magnetic pole.
Further, the inner diameter of the rotor core is consistent with the outer diameter of the cylinder.
The utility model adopts the above technical scheme, there is following beneficial effect:
1. the cylindrical rotating shaft is arranged, so that the rotor core has reference and support, the cylindrical rotating shaft has few welding seams, high rigidity and small total weight and rotational inertia;
2. the rotor core and the cylindrical rotating shaft are integrated through the intermittent fillet weld, the traditional key connection is cancelled, the torque is transmitted through the intermittent weld, and the rotor core and the cylindrical rotating shaft have obvious advantages in the aspects of manufacturability and reliability;
3. the rotor punching sheet is formed by splicing a plurality of groups of sector rotor punching sheets separated along the central line of the magnetic pole, and the utilization rate of materials is increased.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is the structure schematic diagram of the middle rotor punching sheet of the utility model.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
A permanent magnet motor rotor as shown in figures 1 to 3 wherein: the rotor comprises a rotor iron core 1, a cylindrical rotating shaft 2 and a plurality of magnetic steels 3;
the cylindrical rotating shaft 2 comprises a solid shaft 2-1, a plurality of round supporting plates 2-2 arranged in parallel and a cylinder 2-3 sleeved outside the round supporting plates 2-2, a solid shaft through hole is formed in the center of the round supporting plate 2-2, and the solid shaft 2-1 is arranged in the solid shaft through hole of the round supporting plate 2-2;
the rotor core 1 is sleeved outside the cylinder 2-3, a group of pressure plates 4 are respectively arranged on two sides of the rotor core 1, the rotor core 1 is formed by stacking a plurality of rotor punching sheets 1-1, a plurality of magnetic steel embedded grooves 1-1-1 are uniformly distributed in the circumferential direction of the positions, close to the outer edge, of the rotor punching sheets 1-1, and the magnetic steel 3 is arranged in the magnetic steel embedded grooves 1-1-1 of the rotor punching sheets 1-1.
Furthermore, a plurality of slotted holes 2-2-1 are uniformly distributed on the side surface of the circular supporting plate 2-2.
Further, the rotor sheet 1-1 is formed by splicing a plurality of groups of sector rotor sheets separated along the center line of the magnetic pole.
Further, the inner diameter of the rotor core 1 is consistent with the outer diameter of the cylinders 2-3.
Claims (4)
1. A permanent magnet motor rotor characterized in that: the rotor comprises a rotor iron core (1), a cylindrical rotating shaft (2) and a plurality of magnetic steels (3);
the cylindrical rotating shaft (2) comprises a solid shaft (2-1), a plurality of round supporting plates (2-2) which are arranged in parallel and a cylinder (2-3) sleeved on the outer sides of the round supporting plates (2-2), a solid shaft through hole is formed in the center of each round supporting plate (2-2), and the solid shaft (2-1) is arranged in the solid shaft through hole of each round supporting plate (2-2);
the rotor core (1) is sleeved on the outer side of the cylinder (2-3), a group of pressure plates (4) are arranged on two sides of the rotor core (1) respectively, the rotor core (1) is formed by stacking a plurality of rotor punching sheets (1-1), a plurality of magnetic steel embedded grooves (1-1-1) are uniformly distributed in the circumferential direction of the rotor punching sheets (1-1) close to the outer edge, and the magnetic steel (3) is arranged in the magnetic steel embedded grooves (1-1-1) of the rotor punching sheets (1-1).
2. A permanent magnet machine rotor according to claim 1, characterized in that: a plurality of slotted holes (2-2-1) are uniformly distributed on the side surface of the circular supporting plate (2-2).
3. A permanent magnet machine rotor according to claim 1, characterized in that: the rotor punching sheet (1-1) is formed by splicing a plurality of groups of sector rotor punching sheets which are separated along the central line of the magnetic pole.
4. A permanent magnet machine rotor according to claim 1, characterized in that: the inner diameter of the rotor iron core (1) is consistent with the outer diameter of the cylinder (2-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021889195.7U CN212811408U (en) | 2020-09-02 | 2020-09-02 | Permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021889195.7U CN212811408U (en) | 2020-09-02 | 2020-09-02 | Permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212811408U true CN212811408U (en) | 2021-03-26 |
Family
ID=75088198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021889195.7U Active CN212811408U (en) | 2020-09-02 | 2020-09-02 | Permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212811408U (en) |
-
2020
- 2020-09-02 CN CN202021889195.7U patent/CN212811408U/en active Active
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