CN104143868A - Magnetic steel arrangement structure of rotor of high-power and high-speed permanent magnet motor - Google Patents
Magnetic steel arrangement structure of rotor of high-power and high-speed permanent magnet motor Download PDFInfo
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- CN104143868A CN104143868A CN201310170521.7A CN201310170521A CN104143868A CN 104143868 A CN104143868 A CN 104143868A CN 201310170521 A CN201310170521 A CN 201310170521A CN 104143868 A CN104143868 A CN 104143868A
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- magnet steel
- magnetic steel
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- magnetic
- yoke
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A magnetic steel arrangement structure of a rotor of a high-power and high-speed permanent magnet motor comprises a tubular magnet yoke, a plurality of magnetic steel sets in one-to-one correspondence to rotor magnetic poles and a plurality of magnetic shoes in one-to-one correspondence to the rotor magnetic poles. The radial section of the magnet yoke is of a ring shape, and the magnet yoke is concentrically arranged on a rotor shaft in a sleeved mode. A plurality of locating grooves in one-to-one correspondence to the rotor magnetic poles are uniformly formed in the magnet yoke in the axial direction, the length of the locating grooves is equal to the axial length of the magnet yoke, and the magnetic steel sets are arranged in the corresponding locating grooves respectively. Each magnetic steel set comprises four magnetic steel rows arranged in parallel, and each magnetic steel row is composed of a plurality of magnetic steel bodies axially arranged in the corresponding locating groove. The magnetic shoes are respectively arranged on one magnetic steel set in a pressing mode and are fixed to the magnet yoke. According to the magnetic steel arrangement structure, the phenomena that when the magnetic steel bodies are thrown out under the large centrifugal force generated by the rotor of the motor, accidents are caused and the motor is damaged can be avoided. In addition, the magnetic steel arrangement structure is convenient to assemble and low in cost.
Description
Technical field
The invention belongs to machine field, relate in particular to a kind of magnet steel arrangement of Large-power High-Speed permanent magnet machine rotor.
Background technology
The mounted permagnetic synchronous motor in traditional surface is low speed small power motor, the magnet steel that its pole pair is answered is directly adsorbed in yoke, and the fixed form of above-mentioned magnet steel cannot be applied on Large-power High-Speed permagnetic synchronous motor, rotating shaft is under High Rotation Speed, can produce larger centrifugal force, magnet steel is thrown away, cause security incident, and can cause damage to motor.
Summary of the invention
Based on this, for above-mentioned technical problem, provide a kind of magnet steel arrangement of Large-power High-Speed permanent magnet machine rotor.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of magnet steel arrangement of Large-power High-Speed permanent magnet machine rotor, comprise the yoke of tubulose, with rotor magnetic pole one to one multiple magnet steel groups and with rotor magnetic pole multiple magnetic boots one to one, the radial section of described yoke ringwise, and concentric locking collar is located on armature spindle, in described yoke, be evenly provided with multiple and rotor magnetic pole positioning groove one to one, described positioning groove axially arranges, its length equates with the axial length of yoke, described multiple magnet steel group is located at respectively in corresponding positioning groove, each magnet steel group comprises four magnet steel row that are arranged in parallel, each magnet steel is listed as the multiple magnet steel in described positioning groove by axially-aligned and forms, described multiple magnetic boots are installed with respectively in a magnet steel group, and fix with described yoke.
This programme also comprises multiple magnetic pole screws, described each magnet steel group also comprises two non-magnetic fixed strips, described two fixed strips are axially located at respectively between first magnet steel row and second magnet steel row, and between the 3rd magnet steel row and the 4th magnet steel row, described fixed strip is axially evenly provided with multiple the first through holes, each magnetic boots are provided with the second through hole that multiple and described the first through hole is corresponding, the screw rod of described multiple magnetic pole screws passes described the second through hole and the first through hole, and fixes with described yoke.
Between described magnet steel and the positioning groove of described yoke and and described magnetic boots between be equipped with glue layer.
Magnet steel arrangement of the present invention can avoid magnet steel to be thrown out of because of the high centrifugal force that rotor produces, and then causes security incident and damage motor, and easy to assembly, cost is low.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated:
Fig. 1 is structural representation of the present invention.
Fig. 2 is side-looking structural representation of the present invention.
Fig. 3 is the partial enlarged drawing of Fig. 1 at A place.
Fig. 4 is the structural representation of fixed strip of the present invention.
Embodiment
As shown in Figure 1, a kind of magnet steel arrangement of Large-power High-Speed permanent magnet machine rotor, comprises yoke 110, magnet steel group 120, magnetic boots 130 and multiple magnetic pole screw 140.
Yoke 110 is tubulose, and for transmitting the magnetic line of force, its radial section ringwise, and be located on armature spindle 2 by concentric locking collar.
In yoke 110, be evenly provided with multiple and rotor magnetic pole positioning groove 111 one to one, positioning groove 111 axially arranges, and its length equates with the axial length of yoke 110.
Magnet steel group 120 is multiple, and it is corresponding one by one with rotor magnetic pole.
As shown in Figure 1 and Figure 2, multiple magnet steel groups 120 are located at respectively in corresponding positioning groove 111, and each magnet steel group 120 comprises four magnet steel row 121 that are arranged in parallel, and by axially-aligned, the multiple magnet steel 122 in positioning groove 111 form each magnet steel row 121.
Magnetic boots 130 are multiple, and corresponding one by one with rotor magnetic pole.
Multiple magnetic boots 130 are installed with respectively in a magnet steel group 120, and fixing with yoke 110, and magnet steel 122 is fixed in yoke 110 by magnetic boots 130, can avoid magnet steel 120 to throw away because rotor high-speed rotates.
Preferably, as shown in Fig. 1 and Fig. 4, each magnet steel group 120 also comprises two non-magnetic fixed strips 123, two fixed strips 123 are axially located at respectively between first magnet steel row and second magnet steel row, and between the 3rd magnet steel row and the 4th magnet steel row, fixed strip 123 is axially evenly provided with multiple the first through holes 124, each magnetic boots 130 are provided with multiple second through holes 131 corresponding with the first through hole 124, the screw rod of multiple magnetic pole screws 140 passes the second through hole 131 and the first through hole 124, and fixing with yoke 110.
Magnetic boots 130 are pressed on magnet steel 122 in yoke 110 by magnetic pole screw 140, yoke 110, magnet steel 120 and magnetic boots 130 are connected as a whole, better prevent that magnet steel 122 is because centrifugal force is thrown out of, and damage motor.
Simultaneously, the setting of two fixed strips 123, is conducive to magnet steel 122 and dispels the heat, and prevents that motor is in the time of specified operation, momentary overload and short trouble, magnet steel 122 is because local overheating causes irreversible demagnetization, and also facilitated magnetic boots 130 to be assembled in yoke 110 by magnetic pole screw 140.
As shown in Figure 3, between the positioning groove 111 of magnet steel 122 and yoke 110 and and magnetic boots 130 between be equipped with glue layer 150, in the High Rotation Speed process of rotor, play the effect of buffering and damping, this glue layer 150 is smeared in the assembling process of magnet steel 122 and magnetic boots 130, there is lubricated effect, be convenient to assembling.
But, those of ordinary skill in the art will be appreciated that, above embodiment is only for the present invention is described, and be not used as limitation of the invention, as long as within the scope of connotation of the present invention, variation, modification to the above embodiment all will drop within the scope of claims of the present invention.
Claims (3)
1. the magnet steel arrangement of a Large-power High-Speed permanent magnet machine rotor, it is characterized in that, comprise the yoke of tubulose, with rotor magnetic pole one to one multiple magnet steel groups and with rotor magnetic pole multiple magnetic boots one to one, the radial section of described yoke ringwise, and concentric locking collar is located on armature spindle, in described yoke, be evenly provided with multiple and rotor magnetic pole positioning groove one to one, described positioning groove axially arranges, its length equates with the axial length of yoke, described multiple magnet steel group is located at respectively in corresponding positioning groove, each magnet steel group comprises four magnet steel row that are arranged in parallel, each magnet steel is listed as the multiple magnet steel in described positioning groove by axially-aligned and forms, described multiple magnetic boots are installed with respectively in a magnet steel group, and fix with described yoke.
2. the magnet steel arrangement of a kind of Large-power High-Speed permanent magnet machine rotor according to claim 1, it is characterized in that, also comprise multiple magnetic pole screws, described each magnet steel group also comprises two non-magnetic fixed strips, described two fixed strips are axially located at respectively between first magnet steel row and second magnet steel row, and between the 3rd magnet steel row and the 4th magnet steel row, described fixed strip is axially evenly provided with multiple the first through holes, each magnetic boots are provided with the second through hole that multiple and described the first through hole is corresponding, the screw rod of described multiple magnetic pole screws is through described the second through hole and the first through hole, and fix with described yoke.
3. the magnet steel arrangement of a kind of Large-power High-Speed permanent magnet machine rotor according to claim 1 and 2, is characterized in that, between described magnet steel and the positioning groove of described yoke and and described magnetic boots between be equipped with glue layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170521.7A CN104143868A (en) | 2013-05-09 | 2013-05-09 | Magnetic steel arrangement structure of rotor of high-power and high-speed permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170521.7A CN104143868A (en) | 2013-05-09 | 2013-05-09 | Magnetic steel arrangement structure of rotor of high-power and high-speed permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104143868A true CN104143868A (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310170521.7A Pending CN104143868A (en) | 2013-05-09 | 2013-05-09 | Magnetic steel arrangement structure of rotor of high-power and high-speed permanent magnet motor |
Country Status (1)
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| CN (1) | CN104143868A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362781A (en) * | 2014-12-05 | 2015-02-18 | 国家电网公司 | Large-scale water-pumping energy storage unit rotor |
| CN107040106A (en) * | 2017-06-02 | 2017-08-11 | 中国科学院工程热物理研究所 | A kind of high-speed permanent magnetic disc type electric machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218422Y (en) * | 1994-12-05 | 1996-01-24 | 广东机械学院 | Permenant magnetic motor |
| EP1337028A2 (en) * | 1995-05-02 | 2003-08-20 | Oppama Industry Co., Ltd. | A magneto electric generator rotor |
| CN201623553U (en) * | 2010-02-11 | 2010-11-03 | 力德风力发电(江西)有限责任公司 | Surface-mounted magnetic pole rotor of direct-drive permanent magnet generator |
| CN202488239U (en) * | 2011-09-28 | 2012-10-10 | 卧龙电气集团股份有限公司 | Permanent magnetic direct current motor rotor |
-
2013
- 2013-05-09 CN CN201310170521.7A patent/CN104143868A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2218422Y (en) * | 1994-12-05 | 1996-01-24 | 广东机械学院 | Permenant magnetic motor |
| EP1337028A2 (en) * | 1995-05-02 | 2003-08-20 | Oppama Industry Co., Ltd. | A magneto electric generator rotor |
| CN201623553U (en) * | 2010-02-11 | 2010-11-03 | 力德风力发电(江西)有限责任公司 | Surface-mounted magnetic pole rotor of direct-drive permanent magnet generator |
| CN202488239U (en) * | 2011-09-28 | 2012-10-10 | 卧龙电气集团股份有限公司 | Permanent magnetic direct current motor rotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362781A (en) * | 2014-12-05 | 2015-02-18 | 国家电网公司 | Large-scale water-pumping energy storage unit rotor |
| CN107040106A (en) * | 2017-06-02 | 2017-08-11 | 中国科学院工程热物理研究所 | A kind of high-speed permanent magnetic disc type electric machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141112 |