CN201766425U - Magnetic shoe fixing structure of the rotor - Google Patents
Magnetic shoe fixing structure of the rotor Download PDFInfo
- Publication number
- CN201766425U CN201766425U CN2010205238013U CN201020523801U CN201766425U CN 201766425 U CN201766425 U CN 201766425U CN 2010205238013 U CN2010205238013 U CN 2010205238013U CN 201020523801 U CN201020523801 U CN 201020523801U CN 201766425 U CN201766425 U CN 201766425U
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- magnetic shoe
- rotor
- slot
- fixed structure
- rotor block
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Abstract
The utility model belongs to the technical field of electrical machinery, especially relating to a magnetic shoe fixing structure of a rotor. The fixing structure sloves the problems such as unreasonable design, low mechanical strength and the like in the prior art. The fixing structure comprises a plurality of slots equally distributed on the peripheral of the rotor body along the circumferencial direction ; the slots are respectively provided with the magnetic shoe and the slots also have a barrier part which can prevent the magnetic shoe from escaping from the radial direction of the rotor body. Compared with the prior art, the magnetic shoe fixing structure of the rotor has the advantages of reasonable design, simple structure, high mechanical strength, long service life, good heat dissipation and high working stability, without being affected by the working temperature and rotary,.
Description
Technical field
The utility model belongs to technical field of motors, especially relates to a kind of magnetic shoe fixed structure of rotor.
Background technology
At present, the magnetic shoe of electronics rotor generally is fixed on the rotor core by binding agent.This kind magnetic shoe fixed structure in use causes magnetic shoe to drop through regular meeting because of factors such as ageing of binders or machine operation heatings.
Be head it off, people have carried out long-term exploration, have proposed various solutions.For example Chinese patent literature discloses a kind of dc brushless motor rotor magnet fixed part and fixing means [application number: 200410019535.X], and in this technical scheme, dc brushless motor comprises rotor magnetic core, magnet and magnet fixed part.Rotor magnetic core is stacked by many disc steel disc insulation and forms, and the rotating shaft one is combined in the axle center of rotor magnetic core.Magnet is divided into several piece, by the peripheral surface of radial contact at above-mentioned rotor magnetic core, contact with it.The magnet fixed part adopts heat-shrinkable T bush, and heat-shrinkable T bush is being encircled the peripheral surface of above-mentioned magnet, allows magnet keep bonding state.It can solve the problem that magnetic shoe drops to a certain extent.But have the following disadvantages: 1, the peripheral surface of encircling above-mentioned magnet owing to the magnet fixed part, heat dispersion is undesirable when making working rotor.2, because the magnet fixed part adopts heat-shrinkable T bush, and its intensity and useful life are all undesirable, heat-shrinkable T bush is aging easily in the back that works long hours, and causes magnet fixing unreliable.
The somebody adopts the fixing mode of securing member to realize the fixing of magnetic shoe.Promptly be provided with porosely, pass magnetic shoe with bolt and screw in screw hole on the main shaft, magnetic shoe is fixed at magnetic shoe.Because the magnetic shoe matter made of NdFeB material is hard and crisp, punching has reduced the intensity of magnetic shoe, and motor need be with the high speed rotating of the thousands of commentaries on classics of per minute, occurs in a large number in practice that the magnetic shoe fragmentation comes off and the fault that causes motor to be scrapped.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of reasonable in design, simple in structure, mechanical strength height, good operating stability, the magnetic shoe fixed structure of the rotor that is easy to assemble.
For achieving the above object, the utility model has adopted following technical proposal: the magnetic shoe fixed structure of this rotor, be arranged on tubular rotor block and be between the magnetic shoe of strip, it is characterized in that, this fixed structure comprises several equally distributed in a circumferential direction slots that are arranged on the rotor block outside, be respectively equipped with described magnetic shoe in each slot, described slot has the stop part that can prevent that magnetic shoe radially breaks away from from rotor block.
In the magnetic shoe fixed structure of above-mentioned rotor, the outside of described magnetic shoe is provided with the backstop step that shape and stop part adapt, and described stop part and backstop step lean.
In the magnetic shoe fixed structure of above-mentioned rotor, the described rotor block outside has the raised line that some cross sections are the T type, forms above-mentioned slot between adjacent two raised lines; Described raised line outer rim and magnetic shoe outer rim are positioned on the same circumference.
In the magnetic shoe fixed structure of above-mentioned rotor, the quantity of described slot is even number, and is provided with location hole in a slot therein, and the magnetic shoe of being located in this slot has the location division that adapts with the location hole shape.
In the magnetic shoe fixed structure of above-mentioned rotor, the quantity of described slot is six or eight.
In the magnetic shoe fixed structure of above-mentioned rotor, described rotor block is formed by stacking by some rotor sheets, is provided with some connecting holes on rotor block, is provided with the armature spindle installing hole at the center of rotor block.
In the magnetic shoe fixed structure of above-mentioned rotor, each described slot is provided with two stop parts, and each described magnetic shoe is provided with two backstop steps, and stop part and the corresponding one by one setting of backstop step.
Compared with prior art, the advantage of the magnetic shoe fixed structure of this rotor is: 1, reasonable in design, simple in structure, and mechanical strength height, long service life.2, be not subjected to the influence of working temperature and rotation, thermal diffusivity is good, the job stability height.
Description of drawings
Fig. 1 is embodiment 1 structural representation that the utility model provides.
Fig. 2 is embodiment 1 a rotor block structural representation in the utility model.
Fig. 3 is embodiment 1 a magnetic shoe structural representation in the utility model.
Fig. 4 is embodiment 2 structural representations that the utility model provides.
Among the figure, rotor block 1, slot 10, location hole 10a, stop part 11, raised line 12, magnetic shoe 2, location division 2a, backstop step 21, connecting hole 13, armature spindle installing hole 14.
Embodiment
As shown in Figure 1, the magnetic shoe fixed structure of this rotor is arranged on tubular rotor block 1 and is between the magnetic shoe 2 of strip.Rotor block 1 is formed by stacking by some rotor sheets, is provided with some connecting holes 13 on rotor block 1, is provided with armature spindle installing hole 14 at the center of rotor block 1.
This fixed structure comprises several equally distributed in a circumferential direction slots 10 that are arranged on rotor block 1 outside, is respectively equipped with magnetic shoe 2 in each slot 10.As illustrated in fig. 1 and 2, slot 10 has the stop part 11 that can prevent that magnetic shoe 2 radially breaks away from from rotor block 1.Be provided with the backstop step 21 that shape and stop part 11 adapt as the outside of Fig. 1 and 3 magnetic shoes 2, stop part 11 leans with backstop step 21.
Embodiment 2:
As shown in Figure 4, in the present embodiment, the quantity of slot 10 is eight, all the other all with embodiment 1 roughly the same, this paper does not do and gives unnecessary details.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as rotor block 1, slot 10, location hole 10a, stop part 11, raised line 12, magnetic shoe 2, location division 2a, backstop step 21, connecting hole 13, armature spindle installing hole 14 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. the magnetic shoe fixed structure of a rotor, be arranged on tubular rotor block (1) and be between the magnetic shoe (2) of strip, it is characterized in that, this fixed structure comprises several equally distributed in a circumferential direction slots (10) that are arranged on rotor block (1) outside, be respectively equipped with described magnetic shoe (2) in each slot (10), described slot (10) has the stop part (11) that can prevent that magnetic shoe (2) radially breaks away from from rotor block (1).
2. the magnetic shoe fixed structure of rotor according to claim 1 is characterized in that, the outside of described magnetic shoe (2) is provided with the backstop step (21) that shape and stop part (11) adapt, and described stop part (11) leans with backstop step (21).
3. the magnetic shoe fixed structure of rotor according to claim 2 is characterized in that, described rotor block (1) outside has the raised line (12) that some cross sections are the T type, forms above-mentioned slot (10) between adjacent two raised lines (12); Described raised line (12) outer rim and magnetic shoe (2) outer rim are positioned on the same circumference.
4. according to the magnetic shoe fixed structure of claim 1 or 2 or 3 described rotors, it is characterized in that, the quantity of described slot (10) is even number, and be provided with location hole (10a) in the slot (10) therein, the magnetic shoe of being located in this slot (10) (2) has the location division (2a) that adapts with location hole (10a) shape.
5. the magnetic shoe fixed structure of rotor according to claim 4 is characterized in that, the quantity of described slot (10) is six or eight.
6. according to the magnetic shoe fixed structure of claim 1 or 2 or 3 described rotors, it is characterized in that, described rotor block (1) is formed by stacking by some rotor sheets, is provided with some connecting holes (13) on rotor block (1), is provided with armature spindle installing hole (14) at the center of rotor block (1).
7. the magnetic shoe fixed structure of rotor according to claim 3, it is characterized in that, each described slot (10) is provided with two stop parts (11), and each described magnetic shoe (2) is provided with two backstop steps (21), and stop part (11) and the corresponding one by one setting of backstop step (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205238013U CN201766425U (en) | 2010-09-09 | 2010-09-09 | Magnetic shoe fixing structure of the rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205238013U CN201766425U (en) | 2010-09-09 | 2010-09-09 | Magnetic shoe fixing structure of the rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201766425U true CN201766425U (en) | 2011-03-16 |
Family
ID=43719033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205238013U Expired - Fee Related CN201766425U (en) | 2010-09-09 | 2010-09-09 | Magnetic shoe fixing structure of the rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201766425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321632A (en) * | 2016-10-20 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic steel fixing seat and magnetic bearing |
| EP4239859A1 (en) * | 2022-02-09 | 2023-09-06 | Sinfonia Technology Co., Ltd. | Magnet, electric motor, and method of manufacturing magnet |
-
2010
- 2010-09-09 CN CN2010205238013U patent/CN201766425U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321632A (en) * | 2016-10-20 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnetic steel fixing seat and magnetic bearing |
| EP4239859A1 (en) * | 2022-02-09 | 2023-09-06 | Sinfonia Technology Co., Ltd. | Magnet, electric motor, and method of manufacturing magnet |
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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 |
Granted publication date: 20110316 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |