CN102075025A - Axial positioning structure of motor rotor - Google Patents
Axial positioning structure of motor rotor Download PDFInfo
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- CN102075025A CN102075025A CN 201010288066 CN201010288066A CN102075025A CN 102075025 A CN102075025 A CN 102075025A CN 201010288066 CN201010288066 CN 201010288066 CN 201010288066 A CN201010288066 A CN 201010288066A CN 102075025 A CN102075025 A CN 102075025A
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- rotor
- motor end
- electric motor
- resilient sleeve
- axial positioning
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Abstract
The invention discloses an axial positioning structure of a motor rotor, which comprises a rotating shaft, a rotor core and a motor end cover, wherein the rotor core and the motor end cover are arranged on the rotating shaft, an elastic sleeve with elasticity is arranged on the rotating shaft between the rotor and the motor end cover, one end of the elastic sleeve supports against the sidewall of the rotor core, and the other end of the elastic sleeve supports against the inner sidewall of the motor end cover. The axial positioning structure disclosed by the invention is simple in structure and convenient in installation, micro elasticity of the elastic sleeve achieves axial positioning of the rotor and buffers axial vibration, thereby avoiding rigid collision between the rotor and the motor end cover, reducing the abrasion between the elastic sleeve and the motor end cover, prolonging the service life and improving the working efficiency of motor parts.
Description
Technical field
The present invention relates to the axial positioning structure of micro-machine assembly, particularly a kind of rotor.
Background technology
For micro-machine, simple in structure, the axial location of rotor generally realizes by axle sleeve class part, in operation process, because moving axially of rotor is inevitable, and rigidity is bigger between rotor and the axle sleeve, may bump, produce noise, influence the operating efficiency of motor.
Summary of the invention
Problem to be solved by this invention just provides a kind of axial positioning structure of rotor simple in structure, easy for installation, has avoided the generation of rigid collision, reduces noise, improves the useful life and the operating efficiency of motor part.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of axial positioning structure of rotor, comprise rotating shaft, be located at rotor core and electric motor end cap in the rotating shaft, it is characterized in that: in the rotating shaft between rotor and the electric motor end cap, be provided with the rubber-like resilient sleeve, one end of resilient sleeve is against on the sidewall of rotor core, and the other end of resilient sleeve is against on the madial wall of electric motor end cap.
Further, described resilient sleeve is horn-like, and the small end of resilient sleeve is against on the sidewall of rotor core, and the big end of resilient sleeve is against on the madial wall of electric motor end cap.
Further, be provided with sealing ring between described resilient sleeve and the electric motor end cap madial wall.
Further, the madial wall of described electric motor end cap is provided with the boss of location sealing ring.
After adopting technique scheme, the present invention has following advantage: the micro-elastic of resilient sleeve is to the axial location and the buffering axial vibrations of rotor, avoided the rigid collision of rotor and electric motor end cap, the interaction energy of sealing ring is further controlled the end play of rotor and electric motor end cap, and reduces the wearing and tearing between resilient sleeve and the electric motor end cap.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of an embodiment of the present invention.
Embodiment
The structural representation of an embodiment of the present invention as shown in Figure 1, a kind of axial positioning structure of rotor, comprise rotating shaft 1, be located at rotor core 2 and electric motor end cap 3 in the rotating shaft, in the rotating shaft between rotor and the electric motor end cap, be provided with rubber-like resilient sleeve 4, one end of resilient sleeve is against on the sidewall 21 of rotor core, and the other end of resilient sleeve is against on the madial wall 31 of electric motor end cap.
In the foregoing description, resilient sleeve is set as horn-like, the small end of resilient sleeve is against on the sidewall of rotor core, the big end of resilient sleeve is against on the madial wall of electric motor end cap, be provided with sealing ring 5 between resilient sleeve and the electric motor end cap madial wall, the madial wall of electric motor end cap is provided with the boss 32 of location sealing ring.Resilient sleeve can adopt plasticity preferred metal material to be made of such as copper.
The present invention is simple in structure, easy for installation, the micro-elastic of resilient sleeve is to the axial location and the buffering axial vibrations of rotor, avoided the rigid collision of rotor and electric motor end cap, the interaction energy of sealing ring is further controlled the end play of rotor and electric motor end cap, and the wearing and tearing between minimizing resilient sleeve and the electric motor end cap, the useful life and the operating efficiency of raising motor part.
Except that above preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of claims of the present invention.
Claims (4)
1. the axial positioning structure of a rotor, comprise rotating shaft (1), be located at rotor core (2) and electric motor end cap (3) in the rotating shaft, it is characterized in that: in the rotating shaft between rotor and the electric motor end cap, be provided with rubber-like resilient sleeve (4), one end of resilient sleeve is against on the sidewall (21) of rotor core, and the other end of resilient sleeve is against on the madial wall of electric motor end cap (31).
2. the axial positioning structure of a kind of rotor according to claim 1, it is characterized in that: described resilient sleeve is horn-like, and the small end of resilient sleeve is against on the sidewall of rotor core, and the big end of resilient sleeve is against on the madial wall of electric motor end cap.
3. the axial positioning structure of a kind of rotor according to claim 2 is characterized in that: be provided with sealing ring (5) between described resilient sleeve and the electric motor end cap madial wall.
4. the axial positioning structure of a kind of rotor according to claim 3 is characterized in that: the madial wall of described electric motor end cap is provided with the boss (32) of location sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288066 CN102075025A (en) | 2010-09-15 | 2010-09-15 | Axial positioning structure of motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010288066 CN102075025A (en) | 2010-09-15 | 2010-09-15 | Axial positioning structure of motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102075025A true CN102075025A (en) | 2011-05-25 |
Family
ID=44033418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010288066 Pending CN102075025A (en) | 2010-09-15 | 2010-09-15 | Axial positioning structure of motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102075025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217601A (en) * | 2018-09-28 | 2019-01-15 | 常州明磁卓控智能科技有限公司 | A kind of permanent magnet synchronous motor with no sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438361A (en) * | 1982-02-24 | 1984-03-20 | Imc Magnetics Corp. | Stepper motor having rotor with limited axial movement |
| CN101034843A (en) * | 2006-01-24 | 2007-09-12 | 日本电产三协株式会社 | Motor |
| CN201393129Y (en) * | 2009-04-03 | 2010-01-27 | 中山大洋电机股份有限公司 | Shock absorption structure of motor bearing system |
| CN201774369U (en) * | 2010-09-15 | 2011-03-23 | 许晓华 | Axial location structure of motor rotor |
-
2010
- 2010-09-15 CN CN 201010288066 patent/CN102075025A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4438361A (en) * | 1982-02-24 | 1984-03-20 | Imc Magnetics Corp. | Stepper motor having rotor with limited axial movement |
| CN101034843A (en) * | 2006-01-24 | 2007-09-12 | 日本电产三协株式会社 | Motor |
| CN201393129Y (en) * | 2009-04-03 | 2010-01-27 | 中山大洋电机股份有限公司 | Shock absorption structure of motor bearing system |
| CN201774369U (en) * | 2010-09-15 | 2011-03-23 | 许晓华 | Axial location structure of motor rotor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217601A (en) * | 2018-09-28 | 2019-01-15 | 常州明磁卓控智能科技有限公司 | A kind of permanent magnet synchronous motor with no sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |