CN203761224U - Permanent magnet motor rotor assembling structure - Google Patents
Permanent magnet motor rotor assembling structure Download PDFInfo
- Publication number
- CN203761224U CN203761224U CN201420100474.9U CN201420100474U CN203761224U CN 203761224 U CN203761224 U CN 203761224U CN 201420100474 U CN201420100474 U CN 201420100474U CN 203761224 U CN203761224 U CN 203761224U
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- CN
- China
- Prior art keywords
- rotating shaft
- permanent magnet
- rotor
- hole
- keyway
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a permanent magnet motor rotor assembling structure. The structure comprises a rotating shaft and multiple segments of rotor iron cores. Each segment of rotor iron core is assembled to the rotating shaft through a mode that a shaft hole is arranged on the rotating shaft. The shaft hole of each segment of rotor iron core possesses at least two key grooves which are distributed with intervals. Different identification holes are correspondingly arranged at different key groove positions of each rotor iron core shaft hole. The key grooves of the adjacent rotor iron cores are staggered. A periphery of the rotating shaft possesses a positioning key which is axially arranged. The multiple segments of rotor iron cores are connected to the rotating shaft as a mode that the positioning key is inserted into one key groove. The plurality of key grooves corresponding to the positioning key on the rotating shaft is arranged on the shaft hole of the rotor iron cores and the different key grooves use the different identification holes respectively so that rapid assembling can be realized without tooling.
Description
Technical field
The utility model relates to electric motors, more particularly, relates to a kind of permanent magnet machine rotor assembly structure.
Background technology
In magneto, in order to reduce motor cogging torque, location torque, torque fluctuations, back electromotive force high order harmonic component, electric current high order harmonic component etc., conventionally rotor need be carried out to the setting of the segment fault utmost point, the certain angle that namely adjacent permanent magnet staggered is attached in rotating shaft.
When the wrong utmost point assembling of motor, conventionally first motor rotor core is pressed into rotating shaft at present, certain angle that then permanent magnet staggered is bonding or be assembled to the iron core of different sections.In addition, also have first that multistage motor rotor core is bonding or assemble after permanent magnet respectively, use the frock certain angle that staggers to be pressed into one by one axle multipiece rotor iron core.
Yet, all there is the problem that production efficiency is low in the wrong utmost point assembling scheme of above-mentioned two kinds of motors, and all needs to use special tooling to realize.
In addition, in above-mentioned wrong utmost point assembling scheme, the angle of the wrong utmost point is subject to the impact of frock precision, and precision is not high conventionally.
Utility model content
The technical problems to be solved in the utility model is that low for above-mentioned rotor efficiency of assembling, to need frock problem provides a kind of permanent magnet machine rotor assembly structure.
The technical scheme that the utility model solves the problems of the technologies described above is, a kind of permanent magnet machine rotor assembly structure is provided, comprise rotating shaft and multipiece rotor iron core, and the mode that each section of rotor core is set to rotating shaft with shaft hole sleeve is assembled to rotating shaft, on the axis hole of each section of described rotor core, there are at least two keyways spaced apart, and the different keyway place correspondence of each rotor core axis hole is provided with different identification holes; The keyway of adjacent rotor core is staggered; The positioning key in the periphery of described rotating shaft with axial setting, the mode cover that described multipiece rotor iron core inserts one of them keyway with positioning key is respectively received in rotating shaft.
In permanent magnet machine rotor assembly structure described in the utility model, keyway corresponding to different identification hole on described multipiece rotor iron core is staggered successively; Described multipiece rotor iron core is inserted into the positioning key of rotating shaft successively with keyway corresponding to different identification hole.
In permanent magnet machine rotor assembly structure described in the utility model, on each section of described rotor core, there are a plurality of axially extending bores corresponding with each permanent magnet respectively, and the plurality of through hole is around axis hole.
In permanent magnet machine rotor assembly structure described in the utility model, in a plurality of through holes on described rotor core, different magnetic poles towards the shape of through hole corresponding to permanent magnet different.
In permanent magnet machine rotor assembly structure described in the utility model, described identification hole axially runs through rotor core.
Permanent magnet machine rotor assembly structure of the present utility model has following beneficial effect: a plurality of keyways and the different keyway corresponding from positioning key in rotating shaft by the axis hole setting at rotor core use respectively different identification hole to identify, and without frock, can realize quick assembling.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model permanent magnet machine rotor assembly structure embodiment.
Fig. 2 is the schematic diagram of the rotor core embodiment in Fig. 1.
Fig. 3 is the partial enlarged drawing of I portion in Fig. 2.
Fig. 4 is the partial enlarged drawing of II portion in Fig. 2.
Fig. 5 is the partial enlarged drawing of III portion in Fig. 2.
Fig. 6 is the partial enlarged drawing of IV portion in Fig. 2.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Fig. 1-6, it is the schematic diagram of the utility model permanent magnet machine rotor assembly structure embodiment.Rotor assembly structure in the present embodiment comprises rotating shaft 20 and multipiece rotor iron core 10, and the mode that each section of rotor core 10 is set to rotating shaft with axis hole 11 covers is assembled to rotating shaft 20.
The periphery of rotating shaft 20 is provided with outstanding positioning key 21, and this positioning key 21 is strip along the axial setting of rotating shaft 20, for realizing the assembling and positioning of each rotor core 10.
Rotor core 10 can be formed by stacking by punching, and the central authorities of each section of rotor core 10 are axis hole 11, and periphery is provided with permanent magnet 13.In addition, on the axis hole 11 of this rotor core 10, there are at least two keyway 12(examples spaced apart four keyways 12 as shown in Figure 2), above-mentioned keyway 12 mates with the shape and size of the cross section of positioning key 21 along the axial setting of rotor core 10 and the shape and size of its cross section, thereby can insert for positioning key 21.When rotor core 10 is assembled to rotating shaft 20, the mode cover that rotor core 10 inserts one of them keyway 12 with positioning key 21 is respectively set in rotating shaft 20.
Different keyways 12 place's correspondences of above-mentioned each rotor core be provided with different identification hole 15(for example four keyways 12 shown in Fig. 3-6 be respectively equipped with circle, regular hexagon, square, triangle identification hole).Above-mentioned identification hole 15 axially runs through rotor core 10(also can arrange respectively identical identification hole at the same position on the two sides of rotor core 10 certainly), can realize the assembling sign of keyway 12.
Especially, corresponding keyway 12 be staggered (angle being staggered can be determined when processing keyway) in adjacent rotor core 10.Particularly, the keyway 12 of different identification hole 15 correspondences on multipiece rotor iron core 10 is staggered successively, the keyway 12 that for example on first paragraph rotor core 10, the keyway 12 of circular identification hole 15 correspondences is corresponding with the regular hexagon identification hole 15 of second segment rotor core 10 predetermined angular of being separated by; The keyway 12 that on second segment rotor core 10, the keyway 12 of regular hexagon identification hole 15 correspondences is corresponding with the square identification hole 15 of three-stage rotor iron core 10 predetermined angular of being separated by; The keyway 12 that on three-stage rotor iron core 10, the keyway 12 of square identification hole 15 correspondences is corresponding with the triangle identification hole 15 of the 4th section of rotor core 10 predetermined angular of being separated by.
Correspondingly, when being assembled to rotating shaft 20, multipiece rotor iron core 10 coordinates location with the keyway 12 of different identification hole 15 correspondences and the positioning key 21 of rotating shaft successively.For example, first paragraph rotor core 10 coordinates with the positioning key 21 in rotating shaft 20 with the keyway 12 of circular identification hole 15 correspondences; Second segment rotor core 10 coordinates with the positioning key 21 in rotating shaft 20 with the keyway 12 of regular hexagon identification hole 15 correspondences; Three-stage rotor iron core 10 coordinates with the positioning key 21 in rotating shaft 20 with the keyway 12 of square identification hole 15 correspondences; The 4th section of rotor core 10 coordinates with the positioning key 21 in rotating shaft 20 with the keyway 12 of triangle identification hole 15 correspondences.
By said structure, without frock, rotor core 10 can be assembled to rotating shaft 20 and realize the wrong utmost point assembling of adjacent rotor iron core 10, greatly enhance productivity simultaneously.This structure also makes the wrong utmost point precision of rotor not affected by frock, only relevant with the positional precision of keyway 12 on rotor core 10, has greatly improved wrong utmost point precision.
In above-mentioned permanent magnet machine rotor assembly structure, on each section of rotor core 10, also can have a plurality of axially extending bore 14(this through holes 14 corresponding with each permanent magnet 13 respectively can reduce rotor weight and can realize rotor core heat radiation), and the plurality of through hole 14 is around axis hole 11.Especially, in above-mentioned a plurality of through holes 14, different magnetic poles towards the shape of through hole 14 of permanent magnet 13 correspondences different.By which, can realize packing into fast of permanent magnet 13, avoid the mistake assembling of permanent magnet 13.
The above; it is only preferably embodiment of the utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (5)
1. a permanent magnet machine rotor assembly structure, comprise rotating shaft and multipiece rotor iron core, and the mode that each section of rotor core is set to rotating shaft with shaft hole sleeve is assembled to rotating shaft, it is characterized in that: on the axis hole of each section of described rotor core, there are at least two keyways spaced apart, and the different keyway place correspondence of each rotor core axis hole is provided with different identification holes; The keyway of adjacent rotor core is staggered; The positioning key in the periphery of described rotating shaft with axial setting, the mode cover that described multipiece rotor iron core inserts one of them keyway with positioning key is respectively received in rotating shaft.
2. permanent magnet machine rotor assembly structure according to claim 1, is characterized in that: keyway corresponding to different identification hole on described multipiece rotor iron core is staggered successively; Described multipiece rotor iron core is inserted into the positioning key of rotating shaft successively with keyway corresponding to different identification hole.
3. permanent magnet machine rotor assembly structure according to claim 1, is characterized in that: on each section of described rotor core, have a plurality of axially extending bores corresponding with each permanent magnet respectively, and the plurality of through hole is around axis hole.
4. permanent magnet machine rotor assembly structure according to claim 3, is characterized in that: in a plurality of through holes on described rotor core, different magnetic poles towards the shape of through hole corresponding to permanent magnet different.
5. permanent magnet machine rotor assembly structure according to claim 1, is characterized in that: described identification hole axially runs through rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100474.9U CN203761224U (en) | 2014-03-06 | 2014-03-06 | Permanent magnet motor rotor assembling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100474.9U CN203761224U (en) | 2014-03-06 | 2014-03-06 | Permanent magnet motor rotor assembling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761224U true CN203761224U (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100474.9U Expired - Fee Related CN203761224U (en) | 2014-03-06 | 2014-03-06 | Permanent magnet motor rotor assembling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203761224U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262285A (en) * | 2015-12-01 | 2016-01-20 | 成都叮当自动化设备有限公司 | Manufacturing technology of motor for aviation |
| CN106533104A (en) * | 2016-12-28 | 2017-03-22 | 卧龙电气集团股份有限公司 | Straight and oblique pole integrated rotor punching plate of permanent magnet synchronous motor and permanent magnet synchronous motor |
| CN108551218A (en) * | 2018-03-30 | 2018-09-18 | 北京航天万鸿高科技有限公司 | A kind of rotor core and its application with side set structure |
| CN109163084A (en) * | 2018-10-26 | 2019-01-08 | 南京康尼精密机械有限公司 | A kind of automatic anti-backlash worm wheel worm structure and its processing method and the gap method that disappears |
| CN112217349A (en) * | 2019-07-10 | 2021-01-12 | 东元电机股份有限公司 | Permanent magnet motor rotor assembling jig and method thereof |
-
2014
- 2014-03-06 CN CN201420100474.9U patent/CN203761224U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262285A (en) * | 2015-12-01 | 2016-01-20 | 成都叮当自动化设备有限公司 | Manufacturing technology of motor for aviation |
| CN106533104A (en) * | 2016-12-28 | 2017-03-22 | 卧龙电气集团股份有限公司 | Straight and oblique pole integrated rotor punching plate of permanent magnet synchronous motor and permanent magnet synchronous motor |
| CN108551218A (en) * | 2018-03-30 | 2018-09-18 | 北京航天万鸿高科技有限公司 | A kind of rotor core and its application with side set structure |
| CN109163084A (en) * | 2018-10-26 | 2019-01-08 | 南京康尼精密机械有限公司 | A kind of automatic anti-backlash worm wheel worm structure and its processing method and the gap method that disappears |
| CN112217349A (en) * | 2019-07-10 | 2021-01-12 | 东元电机股份有限公司 | Permanent magnet motor rotor assembling jig and method thereof |
| CN112217349B (en) * | 2019-07-10 | 2021-09-28 | 东元电机股份有限公司 | Permanent magnet motor rotor assembling jig and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200306 |