CN211508748U - Permanent magnet synchronous motor rotor support device - Google Patents
Permanent magnet synchronous motor rotor support device Download PDFInfo
- Publication number
- CN211508748U CN211508748U CN202020223178.3U CN202020223178U CN211508748U CN 211508748 U CN211508748 U CN 211508748U CN 202020223178 U CN202020223178 U CN 202020223178U CN 211508748 U CN211508748 U CN 211508748U
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- Prior art keywords
- rotating shaft
- permanent magnet
- synchronous motor
- pivot
- magnet synchronous
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Abstract
The utility model provides a PMSM rotor spider device, belongs to PMSM technical field to solve current PMSM rotor spider inside and support by two radial spokes, be connected with the magnetism-isolating sleeve ring structure in the outside, nevertheless structural deformation is great in practical application process, and inside circulation of air is relatively poor, and the reliability reduces the problem to some extent. The utility model discloses a pivot, the magnetism isolating sleeve ring and a plurality of backup pads, magnetism isolating sleeve ring cover are established in the outside of pivot, and connect through a plurality of backup pads between the two, and every backup pad evenly distributed is at the surface of pivot, and the certain angle of axial direction biasing of pivot is followed to every backup pad. The utility model is suitable for a PMSM.
Description
Technical Field
The utility model relates to an electric motor rotor support, concretely relates to PMSM rotor support device.
Background
The rotor support of the original flameproof permanent magnet direct-drive variable-frequency speed-regulating three-phase synchronous motor is internally supported by two radial amplitude plates and is connected with a magnetism-isolating sleeve ring structure on the outer side, but the structure is greatly deformed in the practical application process, the internal air circulation is poor, and the reliability is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem, and provide a PMSM spider device.
The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:
the utility model provides a PMSM spider device includes the pivot, separates the magnetism lantern ring and a plurality of backup pad, separates the outside that magnetism lantern ring cover was established in the pivot, and connects through a plurality of backup pads between the two, and every backup pad evenly distributed is at the surface of pivot, and every backup pad is along the certain angle of axial direction off-set of pivot.
Furthermore, each supporting plate is provided with a vent hole.
Furthermore, a plurality of mounting holes for connecting the magnets are processed on the surface of the magnetic isolation lantern ring.
Further, the surface of the magnetism isolating lantern ring is a smooth cylindrical surface.
The included angle of the projection of the two end parts of each supporting plate on a plane A is 8-10 degrees, wherein the plane A is a plane vertical to the axis of the rotating shaft.
Compared with the prior art, the utility model following beneficial effect has:
one, the utility model discloses set up a plurality of backup pads slopes, can produce the wind direction of axial flow, increase the flow of air, also increase simultaneously with the pivot with the joint strength of the magnetism isolating sleeve ring, prolonged life.
Secondly, the utility model discloses simple structure, easy to assemble, manufacturing cost is lower.
Drawings
Fig. 1 is a schematic view of the present invention;
fig. 2 is a side view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation is given, but the scope of the present invention is not limited to the following embodiments.
Example 1: as shown in fig. 1, the permanent magnet synchronous motor rotor bracket device of the present embodiment includes a rotating shaft 1, a magnetic shielding collar 2 and a plurality of supporting plates 3, the magnetic shielding collar 2 is sleeved outside the rotating shaft 1, and the two are connected through the plurality of supporting plates 3, each supporting plate 3 is uniformly distributed on the outer surface of the rotating shaft 1, and each supporting plate 3 is offset by a certain angle along the axial direction of the rotating shaft 1.
A plurality of backup pads 3 can adopt the welded form to fix with magnetism isolating sleeve ring 2 and pivot 1 in this embodiment, and wherein a plurality of backup pads 3 can also choose other forms for use and pivot 1 to fix, are equipped with the axle sleeve if pivot 1, and pass through the key-type connection between axle sleeve and the pivot 1, and the axle sleeve welds with a plurality of backup pads 3.
This embodiment is direct to be connected magnetic isolation lantern ring 2 and pivot 1 through a plurality of backup pads 3, practices thrift the cost, easy to assemble.
Specifically, each support plate 3 is provided with a vent hole 3-1 so as to facilitate axial ventilation when the rotating shaft rotates and facilitate air flow.
Specifically, the surface of the magnetism isolating lantern ring 2 is provided with a plurality of mounting holes for connecting the magnetic pole iron cores 4, each magnet is arranged on the outer surface of the magnetism isolating lantern ring 2 at intervals, and the magnetic pole iron cores 4 are arranged on the outer surface of the magnetism isolating lantern ring 2.
Specifically, the surface of the magnetic isolation lantern ring 2 is a smooth cylindrical surface, so that compared with the existing grooved magnetic isolation lantern ring 2, the manufacturing cost is saved.
Specifically, the included angle alpha of the projections of the two end parts of each supporting plate 3 on the plane A is 8-10 degrees, wherein the plane A is a plane vertical to the axis of the rotating shaft 1, so that axial ventilation and circumferential ventilation can be generated, and the heat dissipation in the motor is facilitated.
Claims (5)
1. The utility model provides a PMSM spider device which characterized in that: the magnetic shielding device comprises a rotating shaft (1), a magnetic shielding sleeve ring (2) and a plurality of supporting plates (3), wherein the magnetic shielding sleeve ring (2) is sleeved outside the rotating shaft (1) and is connected with the rotating shaft through the supporting plates (3), each supporting plate (3) is uniformly distributed on the outer surface of the rotating shaft (1), and each supporting plate (3) is biased by a certain angle along the axial direction of the rotating shaft (1).
2. The rotor spider device of a permanent magnet synchronous motor according to claim 1, wherein: each supporting plate (3) is provided with a vent hole (3-1).
3. The rotor spider device of a permanent magnet synchronous motor according to claim 1, wherein: the surface of the magnetic isolation lantern ring (2) is provided with a plurality of mounting holes for connecting the magnetic pole iron cores (4).
4. The rotor spider device of a permanent magnet synchronous motor according to claim 1, wherein: the surface of the magnetic isolation lantern ring (2) is a smooth cylindrical surface.
5. The rotor spider device of a permanent magnet synchronous motor according to claim 1, wherein: the included angle (alpha) of the projection of the two end parts of each supporting plate on the plane A is 8-10 degrees, wherein the plane A is a plane vertical to the axis of the rotating shaft (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020223178.3U CN211508748U (en) | 2020-02-28 | 2020-02-28 | Permanent magnet synchronous motor rotor support device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020223178.3U CN211508748U (en) | 2020-02-28 | 2020-02-28 | Permanent magnet synchronous motor rotor support device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN211508748U true CN211508748U (en) | 2020-09-15 |
Family
ID=72402148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202020223178.3U Active CN211508748U (en) | 2020-02-28 | 2020-02-28 | Permanent magnet synchronous motor rotor support device |
Country Status (1)
Country | Link |
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CN (1) | CN211508748U (en) |
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2020
- 2020-02-28 CN CN202020223178.3U patent/CN211508748U/en active Active
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