CN204517531U - A kind of surface-mounted permanent magnet machine rotor and motor - Google Patents
A kind of surface-mounted permanent magnet machine rotor and motor Download PDFInfo
- Publication number
- CN204517531U CN204517531U CN201520265517.3U CN201520265517U CN204517531U CN 204517531 U CN204517531 U CN 204517531U CN 201520265517 U CN201520265517 U CN 201520265517U CN 204517531 U CN204517531 U CN 204517531U
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- permanent magnet
- wedge
- groove
- degree
- magnet machine
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Abstract
The utility model relates to a kind of surface-mounted permanent magnet machine rotor, it comprises sheath, permanent magnet, iron core, rotating shaft, end plate, wedge, the through wedge groove II matched with groove I of one or more axis is radially provided with in the inner circle of permanent magnet, described wedge is placed in groove I and wedge groove II, and the length of wedge section is more than or equal to the radical length of wedge groove II.The utility model owing to being provided with groove I and being provided with the wedge groove II matched with groove I on permanent magnet on iron core, when rotor high-speed rotates, permanent magnet occurs to move outside radial direction under centrifugal action, thus cause wedge groove II width to increase, wedge also outwards moves and wedge groove II is filled self-locking simultaneously, sheath is made just to reach elastic conjunction at normal temperatures, simultaneously wedge also has permanent magnet when preventing motor from running up and is circumferentially subjected to displacement at iron core, manufacture simple, ensure that effective transmission of motor torque.The utility model also relates to a kind of motor, and it comprises above-described surface-mounted permanent magnet machine rotor.
Description
Technical field
The utility model relates to machine field, particularly relates to a kind of surface-mounted permanent magnet machine rotor and motor.
Background technology
In prior art, comprise in epitrochanterian position difference according to the rotor permanent magnet poles of magneto: the various forms such as surface-mount type, embedded and Lundell.Wherein the manufacturing process of surface-mounted rotor structure is simple, cost is low, be widely used, for high-speed permanent magnet motor, some rotors adopt surface-mount type rotor, its rotor generally comprises sheath, permanent magnet, iron core, rotating shaft, end plate, iron core sleeve is in rotating shaft, permanent magnet is positioned at outside iron core, sheath is positioned at permanent magnet radial outside, encase permanent magnet, end plate is positioned at the axial both sides of permanent magnet, in order to reduce the intensity of eddy current loss and raising sheath, sheath is generally nonmetal, because the thermal coefficient of expansion of non-metallic material is smaller, elastic conjunction cannot be carried out by hot jacket method, when magneto rotating speed height, permanent magnet can be separated with non metallic sheath, cause rotor cisco unity malfunction.
Utility model content
The purpose of this utility model is that overcoming above defect provides the stable performance of a kind of guarantee rotor structure, installs simple surface-mounted permanent magnet machine rotor and motor.
The technical solution of the utility model is: a kind of surface-mounted permanent magnet machine rotor, it comprises sheath, permanent magnet, unshakable in one's determination, rotating shaft, end plate, iron core sleeve is in rotating shaft, permanent magnet is positioned at outside iron core, sheath is positioned at permanent magnet radial outside and encases permanent magnet, end plate is positioned at the axial both sides of permanent magnet, also comprise wedge, described wedge is magnetic conductor, described iron core cylindrical is radially provided with the through groove of one or more axis I, the through wedge groove II matched with groove I of one or more axis is radially provided with in the inner circle of permanent magnet, described wedge is placed in groove I and wedge groove II, the large end of described wedge is placed in groove I, described wedge and wedge groove II contact-segment are wedge section, the length of wedge section is more than or equal to the radical length of wedge groove II.
For the ease of processing, described groove I is straight trough, and the large end of described wedge is the rectangular section matched with straight trough, and the length of rectangular section is less than the radical length of straight trough.
In order to be beneficial to the stressing conditions improving sheath, described groove I is skewed slot, and wedge is overall oblique cone shape.
Cause heating in order to improve wedge by vortes interference, the radical length of described wedge groove II is less than the radial thickness of permanent magnet.
In order to improve the compression of permanent magnet wedge groove II inner surface, also comprise tooth bar, two chamfered surfaces of permanent magnet wedge groove II are the flank of tooth, and the flank of tooth of the chamfered surface of described tooth surface of rack and permanent magnet wedge groove II matches, and tooth bar is arranged between the inclined-plane of wedge and permanent magnet wedge groove II.
Preferably, the tapering of described wedge is 1 degree to 16 degree.
Preferably, the tapering of described wedge is 4 degree.
Preferably, the tapering of described wedge is 5 degree.
Preferably, the tapering of described wedge is 6 degree.
The utility model also relates to a kind of motor, and it comprises surface-mounted permanent magnet machine rotor, and described surface-mounted permanent magnet machine rotor is surface-mounted permanent magnet machine rotor described above.
Advantageous Effects of the present utility model is, owing to being provided with groove I and being provided with the wedge groove II matched with groove I on iron core on permanent magnet, wedge is placed in groove I and wedge groove II, when rotor high-speed rotates, permanent magnet occurs to move outside radial direction under centrifugal action, thus cause wedge groove II width to increase, wedge also outwards moves and is filled and self-locking by wedge groove II simultaneously, sheath can be made just can to reach elastic conjunction at normal temperatures, simultaneously wedge also has permanent magnet when preventing motor from running up and is circumferentially subjected to displacement at iron core, manufacturing process is simple, assembly reliability improves, ensure that effective transmission of motor torque, and form stable when rotor is operated, motor runnability is steady, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is I place's enlarged drawing of Fig. 1;
Fig. 3 is the enlarged drawing at wedge 5 place of embodiment 2;
Fig. 4 is the enlarged drawing at wedge 5 place of embodiment 3;
Fig. 5 is the enlarged drawing at wedge 5 place of embodiment 4.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Embodiment 1: with reference to accompanying drawing 1, accompanying drawing 2, a kind of surface-mounted permanent magnet machine rotor, it comprises sheath 1, permanent magnet 2, iron core 3, rotating shaft 4, end plate, iron core 3 is enclosed within rotating shaft 4, permanent magnet 2 is positioned at outside iron core 3, sheath 1 is positioned at permanent magnet 2 radial outside and encases permanent magnet 2, end plate is positioned at the axial both sides of permanent magnet 2, also comprise wedge 5, described wedge 5 is magnetic conductor, described iron core 3 cylindrical is radially provided with the through groove I of 8 axis, described groove I is straight trough, the through wedge groove II matched with groove I of 8 axis is radially provided with in the inner circle of permanent magnet 2, the tapering of described wedge groove II is 4 degree, described wedge 5 is placed in groove I and wedge groove II, described wedge 5 greatly end is the rectangular section matched with groove I, the length of the rectangular section of wedge 5 is less than the radical length of groove I, the large end of described wedge is placed in groove I, described wedge 5 is wedge section with wedge groove II contact-segment, the length of wedge section is greater than the radical length of wedge groove II.
Embodiment 2: with reference to accompanying drawing 3, a kind of surface-mounted permanent magnet machine rotor, it comprises sheath 1, permanent magnet 2, iron core 3, rotating shaft 4, end plate, iron core 3 is enclosed within rotating shaft 4, permanent magnet 2 is positioned at outside iron core 3, sheath 1 is positioned at permanent magnet 2 radial outside and encases permanent magnet 2, end plate is positioned at the axial both sides of permanent magnet 2, also comprise wedge 5, described wedge 5 is magnetic conductor, described iron core 3 cylindrical is radially provided with the through groove I of 8 axis, described groove I is dovetail groove, the through wedge groove II matched with groove I of 8 axis is radially provided with in the inner circle of permanent magnet 2, the tapering of described groove I and wedge groove II is 4 degree, described wedge 5 is placed in groove I and wedge groove II, described wedge 5 is the oblique cone shape matched with groove I and wedge groove II, the length of wedge 5 is less than the radical length of groove I and wedge groove II.
Embodiment 3: with reference to accompanying drawing 4, a kind of surface-mounted permanent magnet machine rotor, it comprises sheath 1, permanent magnet 2, iron core 3, rotating shaft 4, end plate, iron core 3 is enclosed within rotating shaft 4, permanent magnet 2 is positioned at outside iron core 3, sheath 1 is positioned at permanent magnet 2 radial outside and encases permanent magnet 2, end plate is positioned at the axial both sides of permanent magnet 2, also comprise wedge 5, described wedge 5 is magnetic conductor, described iron core 3 cylindrical is radially provided with the through groove I of 8 axis, described groove I is straight trough, the through wedge groove II matched with groove I of 8 axis is radially provided with in the inner circle of permanent magnet 2, the tapering of described wedge groove II is 4 degree, described wedge 5 is placed in groove I and wedge groove II, described wedge 5 greatly end is the rectangular section matched with groove I, the length of the rectangular section of wedge 5 is less than the radical length of groove I, the large end of described wedge is placed in groove I, described wedge 5 is wedge section with wedge groove II contact-segment, the length of wedge section is greater than the radical length of wedge groove II, also comprise tooth bar 6, two chamfered surfaces of the wedge groove II of permanent magnet 2 are the flank of tooth, the chamfered surface of described tooth bar 6 flank of tooth and wedge groove II is that the flank of tooth matches, tooth bar 6 is arranged between the inclined-plane of wedge 5 and wedge groove II.
Embodiment 4: with reference to accompanying drawing 5, a kind of surface-mounted permanent magnet machine rotor, it comprises sheath 1, permanent magnet 2, iron core 3, rotating shaft 4, end plate, iron core 3 is enclosed within rotating shaft 4, permanent magnet 2 is positioned at outside iron core 3, sheath 1 is positioned at permanent magnet 2 radial outside and encases permanent magnet 2, end plate is positioned at the axial both sides of permanent magnet 2, also comprise wedge 5, described wedge 5 is magnetic conductor, described iron core 3 cylindrical is radially provided with the through groove I of 8 axis, described groove I is straight trough, the through wedge groove II matched with groove I of 8 axis is radially provided with in the inner circle of permanent magnet 2, the radical length of described wedge groove II is less than the radial thickness of permanent magnet 2, the tapering of described wedge groove II is 4 degree, described wedge 5 is placed in groove I and wedge groove II, described wedge 5 greatly end is the rectangular section matched with groove I, the length of the rectangular section of wedge 5 is less than the radical length of groove I, the large end of described wedge is placed in groove I, described wedge 5 is wedge section with wedge groove II contact-segment, the length of wedge section is greater than the radical length of wedge groove II.
Embodiment 5: a kind of surface-mounted permanent magnet machine rotor, the tapering except the wedge groove II of permanent magnet 2 be 5 be outside one's consideration all consistent with embodiment 1.
Embodiment 6: a kind of surface-mounted permanent magnet machine rotor, the tapering except the wedge groove II of permanent magnet 2 be 6 be outside one's consideration all consistent with embodiment 1.
The utility model also relates to a kind of motor, and it comprises surface-mounted permanent magnet machine rotor, and described surface-mounted permanent magnet machine rotor is surface-mounted permanent magnet machine rotor described above.
In the utility model, a kind of surface-mounted permanent magnet machine rotor and this motor are not limited in shown in embodiment; number as the groove I on iron core and permanent magnet and wedge groove II is greater than or less than 8, save iron core after permanent magnet be directly placed in rotating shaft; as long as meet principle of the present utility model, all within protection range of the present utility model.
Claims (23)
1. a surface-mounted permanent magnet machine rotor, it comprises sheath, permanent magnet, iron core, rotating shaft, end plate, iron core sleeve is in rotating shaft, permanent magnet is positioned at outside iron core, sheath is positioned at permanent magnet radial outside and encases permanent magnet, end plate is positioned at the axial both sides of permanent magnet, it is characterized in that, also comprise wedge, described wedge is magnetic conductor, described iron core cylindrical is radially provided with the through groove of one or more axis I, the through wedge groove II matched with groove I of one or more axis is radially provided with in the inner circle of permanent magnet, described wedge is placed in groove I and wedge groove II, the large end of described wedge is placed in groove I, described wedge and wedge groove II contact-segment are wedge section, the length of wedge section is more than or equal to the radical length of wedge groove II.
2. a kind of surface-mounted permanent magnet machine rotor according to claim 1, is characterized in that, described groove I is straight trough, and the large end of described wedge is the rectangular section matched with straight trough, and the length of rectangular section is less than the radical length of straight trough.
3. a kind of surface-mounted permanent magnet machine rotor according to claim 1, is characterized in that, described groove I is skewed slot, and wedge is overall oblique cone shape.
4. according to claim 1 or claim 2 or a kind of surface-mounted permanent magnet machine rotor according to claim 3, it is characterized in that, the radical length of described wedge groove II is less than the radial thickness of permanent magnet.
5. according to claim 1 or claim 2 or a kind of surface-mounted permanent magnet machine rotor according to claim 3, it is characterized in that, also comprise tooth bar, two chamfered surfaces of permanent magnet wedge groove II are the flank of tooth, the flank of tooth of the chamfered surface of described tooth surface of rack and permanent magnet wedge groove II matches, and tooth bar is arranged between the inclined-plane of wedge and permanent magnet wedge groove II.
6. a kind of surface-mounted permanent magnet machine rotor according to claim 4, it is characterized in that, also comprise tooth bar, two chamfered surfaces of permanent magnet wedge groove II are the flank of tooth, the flank of tooth of the chamfered surface of described tooth surface of rack and permanent magnet wedge groove II matches, and tooth bar is arranged between the inclined-plane of wedge and permanent magnet wedge groove II.
7. according to claim 1 or claim 2 or a kind of surface-mounted permanent magnet machine rotor according to claim 3, it is characterized in that, the tapering of described wedge is 1 degree to 16 degree.
8. a kind of surface-mounted permanent magnet machine rotor according to claim 4, is characterized in that, the tapering of described wedge is 1 degree to 16 degree.
9. a kind of surface-mounted permanent magnet machine rotor according to claim 5, is characterized in that, the tapering of described wedge is 1 degree to 16 degree.
10. a kind of surface-mounted permanent magnet machine rotor according to claim 5, is characterized in that, the tapering of described wedge is 1 degree to 16 degree.
11. a kind of surface-mounted permanent magnet machine rotors according to claim 7, is characterized in that, the tapering of described wedge is 4 degree.
12. a kind of surface-mounted permanent magnet machine rotors according to claim 8, is characterized in that, the tapering of described wedge is 4 degree.
13. a kind of surface-mounted permanent magnet machine rotors according to claim 9, is characterized in that, the tapering of described wedge is 4 degree.
14. a kind of surface-mounted permanent magnet machine rotors according to claim 10, is characterized in that, the tapering of described wedge is 4 degree.
15. a kind of surface-mounted permanent magnet machine rotors according to claim 7, is characterized in that, the tapering of described wedge is 5 degree.
16. a kind of surface-mounted permanent magnet machine rotors according to claim 8, is characterized in that, the tapering of described wedge is 5 degree.
17. a kind of surface-mounted permanent magnet machine rotors according to claim 9, is characterized in that, the tapering of described wedge is 5 degree.
18. a kind of surface-mounted permanent magnet machine rotors according to claim 10, is characterized in that, the tapering of described wedge is 5 degree.
19. a kind of surface-mounted permanent magnet machine rotors according to claim 7, is characterized in that, the tapering of described wedge is 6 degree.
20. a kind of surface-mounted permanent magnet machine rotors according to claim 8, is characterized in that, the tapering of described wedge is 6 degree.
21. a kind of surface-mounted permanent magnet machine rotors according to claim 9, is characterized in that, the tapering of described wedge is 6 degree.
22. a kind of surface-mounted permanent magnet machine rotors according to claim 10, is characterized in that, the tapering of described wedge is 6 degree.
23. 1 kinds of motors, it comprises surface-mounted permanent magnet machine rotor, it is characterized in that, described surface-mounted permanent magnet machine rotor is the surface-mounted permanent magnet machine rotor of the claims 1 to claim 22 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265517.3U CN204517531U (en) | 2015-04-29 | 2015-04-29 | A kind of surface-mounted permanent magnet machine rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265517.3U CN204517531U (en) | 2015-04-29 | 2015-04-29 | A kind of surface-mounted permanent magnet machine rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517531U true CN204517531U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520265517.3U Withdrawn - After Issue CN204517531U (en) | 2015-04-29 | 2015-04-29 | A kind of surface-mounted permanent magnet machine rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204517531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779723A (en) * | 2015-04-29 | 2015-07-15 | 湘潭电机股份有限公司 | Surface-mounted permanent magnet motor rotor and motor |
-
2015
- 2015-04-29 CN CN201520265517.3U patent/CN204517531U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779723A (en) * | 2015-04-29 | 2015-07-15 | 湘潭电机股份有限公司 | Surface-mounted permanent magnet motor rotor and motor |
| CN104779723B (en) * | 2015-04-29 | 2017-06-23 | 湘潭电机股份有限公司 | A kind of surface-mounted permanent magnet machine rotor and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150729 Effective date of abandoning: 20170623 |