CN207926368U - A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor - Google Patents
A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor Download PDFInfo
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- CN207926368U CN207926368U CN201721869344.1U CN201721869344U CN207926368U CN 207926368 U CN207926368 U CN 207926368U CN 201721869344 U CN201721869344 U CN 201721869344U CN 207926368 U CN207926368 U CN 207926368U
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- cooling fan
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Abstract
The utility model discloses a kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor, radial direction magnetic bearing and thrust magnetic bearing are fixed on by screw in magnetic axis bearing, mandrel is arranged in radial direction magnetic bearing and thrust magnetic bearing, thrust disc is fixed on by interference fit type on mandrel, and thrust disc is located at the side of thrust magnetic bearing；Fan body in enclosed cooling fan is threaded on mandrel, and fan housing body is threaded on the inner wall of magnetic axis bearing, and is formed with radiating flow passage between fan body and fan housing body.The utility model uses closed type structure in rotor lower end cooling fan, it is larger to solve the problems, such as that the windage loss of open type cooling fan or external cooling fan consumes, cooling wind enters from the bottom of rotor, and by the blade part of enclosed cooling fan, cooling wind is cooled down successively upwards along the direction of radiating flow passage；Radiating flow passage reduces cooling wind loss, increases cooling effect；It can be effectively protected rotor, the cost of repair is greatly saved.
Description
Technical field：
The utility model is related to a kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor.
Background technology：
In existing magnetcisuspension floating centrifugal motor, the open type cooling fan or external cooling fan generally used is cold
But windage loss consumption is larger, and cooling effect is poor, and cooling efficiency is low, and motor internal temperature is excessively high, and sensor in magnetic axis bearing assembly can be because
Temperature is excessively high and scaling loss, magnetic bearing are easily damaged.In addition at work, the rotating speed of rotor is higher, generally for magnetic suspension motor
In 20000r/min or more, once motor, there is a phenomenon where out of control, rotor can bump against on magnetic bearing, and rotor can damage, and reprocess
When need replacing whole roots rotor, cost is higher.
Utility model content：
The utility model is to provide a kind of magnetic suspension motor rotor to solve the above-mentioned problems of the prior art
Enclosed installation structure of cooling fan.
Technical solution used by the utility model has：A kind of enclosed cooling fan installation knot of magnetic suspension motor rotor
Structure, including magnetic axis bearing, mandrel, radial direction magnetic bearing, thrust magnetic bearing, thrust disc and closed by what fan body and fan housing body formed
Formula cooling fan, the radial direction magnetic bearing and thrust magnetic bearing are fixed on by screw in magnetic axis bearing, and mandrel is arranged in radial direction
In magnetic bearing and thrust magnetic bearing, thrust disc is fixed on by interference fit type on mandrel, and thrust disc is located at thrust magnetic axis
The side held；Fan body in enclosed cooling fan is threaded on mandrel, and fan housing body is threaded in the interior of magnetic axis bearing
On wall, and radiating flow passage is formed between fan body and fan housing body.
Further, the fan body includes integrally formed radiating part, protective case portion and blade part, and blade part, which is set to, to be dissipated
On the outer circle wall in hot portion, the wall thickness of radiating part is more than the wall thickness in protective case portion.
Further, the outer circle wall of two end of the radiating part extends outwardly and forms boss portion, the boss portion
Inner wall is ramp structure.
Further, the axial direction of the radiating part is equipped with several lightening holes.
Further, the fan housing body is made of electric bakelite, and fan body, which is adopted, to be formed from aluminium.
Further, the inner wall of the magnetic axis bearing is equipped with connection boss, and the outer wall thread of fan housing body is connected to connection
On boss.
Further, the thrust disc is T shape structure, and stepped hole, the bottom of enclosed cooling fan are equipped on thrust disc
End stretches in stepped hole.
Further, the axial direction of the magnetic axis bearing is equipped with ventilation hole.
The utility model has the advantages that：
1) the utility model uses closed type structure in rotor lower end cooling fan, solves open type cooling fan or external cold
But the windage loss of fan consumes larger problem, and cooling wind enters from the bottom of rotor, will be cold by the blade part of enclosed cooling fan
But wind cools down successively upwards along the direction of radiating flow passage；Radiating flow passage reduces cooling wind loss, increases cooling effect；
2) the utility model can be effectively protected rotor, and the cost of repair is greatly saved.
Description of the drawings：
Fig. 1 is the utility model structure chart.
Fig. 2 is the structure chart of enclosed cooling fan and thrust disc in the utility model.
Specific implementation mode：
The utility model will be further described below with reference to the accompanying drawings.
As illustrated in fig. 1 and 2, the utility model discloses a kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor,
Including magnetic axis bearing 1, mandrel 2, radial direction magnetic bearing 3, thrust magnetic bearing 4, thrust disc 5 and by 62 groups of fan body 61 and fan housing body
At enclosed cooling fan 6, radial direction magnetic bearing 3 and thrust magnetic bearing 4 be fixed on by screw in magnetic axis bearing 1, and mandrel 2 is worn
In in radial direction magnetic bearing 3 and thrust magnetic bearing 4, thrust disc 5 is fixed on by interference fit type on mandrel 2, and thrust disc 5
One end stretches between radial direction magnetic bearing 3 and thrust magnetic bearing 4.Fan body 61 in enclosed cooling fan 6 is threaded in mandrel 2
On, and one end of fan body 61 stretches in the inside of radial direction magnetic bearing 3.Fan housing body 62 is threaded on the inner wall of magnetic axis bearing 1,
And radiating flow passage 60 is formed between fan body 61 and fan housing body 62.
Fan body 61 in the utility model includes integrally formed radiating part 611, protective case portion 612 and blade part 613,
Blade part 613 is set on the outer circle wall of radiating part 611.
The wall thickness of radiating part 611 is more than the wall thickness in protective case portion 612, and protective case portion 612 stretches in the interior of radial direction magnetic bearing 3
Side.When in use, it when motor generation out-of-control phenomenon, collides between protective case portion 612 and radial direction magnetic bearing 3, protective case portion
612 is impaired, to protect mandrel 2, need to only take out fan body 61, replace fan body 61, avoids replacing mandrel 2, greatly
The big cost for having saved repair.
The outer circle wall of 611 liang of ends of radiating part extends outwardly and forms boss portion 614, the inner wall of the boss portion 614
For ramp structure.Two boss portions 614 form water conservancy diversion cover structure, and ramp structure is convenient for the flowing of wind, good heat dissipation effect.
To mitigate the weight of fan body 61, several lightening holes 615 are equipped in the axial direction of radiating part 611.
Fan housing body 62 is made of electric bakelite, and insulating heat-conductive effect is good.Fan body 61, which is adopted, to be formed from aluminium, and intensity is high.
Connection boss 11 is equipped on the inner wall of magnetic axis bearing 1, the outer wall thread of fan housing body 62 is connected to connection boss 11
On.
Thrust disc 5 in the utility model is T shape structure, and one end of thrust disc 5 stretches in thrust magnetic bearing 4, thrust
Disk 5 also has the function of protection mandrel 2, and out-of-control phenomenon occurs in motor, collides between thrust disc 5 and thrust magnetic bearing 4,
Thrust disc 5 is impaired, to protect mandrel 2.
Stepped hole 51 is equipped on thrust disc 5, the bottom end in protective case portion 612 stretches in stepped hole 51, being capable of 5 He of thrust disc
Continuity in 6 structure of enclosed cooling fan, is effectively protected mandrel 2.
It is equipped with ventilation hole 12 in the axial direction of magnetic axis bearing 1.
The utility model uses closed type structure in rotor lower end cooling fan, solves open type cooling fan or external cooling
The windage loss of fan consumes larger problem, and cooling wind enters (ventilation hole 12) from the bottom of rotor, passes through the leaf of enclosed cooling fan 6
Piece portion 613 cools down cooling wind along the direction of radiating flow passage 60 successively upwards；Radiating flow passage 60 reduces cooling wind loss, increases
Add cooling effect.The utility model can be effectively protected rotor, and the cost of repair is greatly saved.
The mounting structure and thrust magnetic bearing 4 and thrust disc of radial direction magnetic bearing 3 and thrust magnetic bearing 4 in the utility model
Mounting arrangements structure between 5 is prior art conventional means, therefore the utility model repeats no more.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
It for art personnel, can also make several improvements without departing from the principle of this utility model, these improvement also should be regarded as
The scope of protection of the utility model.
Claims (8)
1. a kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor, it is characterised in that：Including magnetic axis bearing（1）, core
Axis（2）, radial direction magnetic bearing（3）, thrust magnetic bearing（4）, thrust disc（5）And by fan body（61）With fan housing body（62）Composition
Enclosed cooling fan（6）, the radial direction magnetic bearing（3）With thrust magnetic bearing（4）It is fixed on magnetic axis bearing by screw（1）It is interior,
Mandrel（2）It is arranged in radial direction magnetic bearing（3）With thrust magnetic bearing（4）It is interior, thrust disc（5）It is fixed on core by interference fit type
Axis（2）On, and thrust disc（5）Positioned at thrust magnetic bearing（4）Side；Enclosed cooling fan（6）In fan body（61）Screw thread
It is connected to mandrel（2）On, fan housing body（62）It is threaded in magnetic axis bearing（1）Inner wall on, and fan body（61）With fan housing body
（62）Between be formed with radiating flow passage（60）.
2. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as described in claim 1, it is characterised in that：The wind
Fan body（61）Including integrally formed radiating part（611）, protective case portion（612）And blade part（613）, blade part（613）It is set to
Radiating part（611）Outer circle wall on, radiating part（611）Wall thickness be more than protective case portion（612）Wall thickness.
3. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as claimed in claim 2, it is characterised in that：It is described to dissipate
Hot portion（611）The outer circle wall of two ends extends outwardly and forms boss portion（614）, the boss portion（614）Inner wall be oblique
Face structure.
4. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as claimed in claim 2, it is characterised in that：It is described to dissipate
Hot portion（611）Axial direction be equipped with several lightening holes（615）.
5. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as described in claim 1, it is characterised in that：The wind
Cover body（62）It is made of electric bakelite, fan body（61）It adopts and is formed from aluminium.
6. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as described in claim 1, it is characterised in that：The magnetic
Bearing block（1）Inner wall be equipped with connection boss（11）, fan housing body（62）Outer wall thread be connected to connection boss（11）On.
7. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as described in claim 1, it is characterised in that：It is described to push away
Power disk（5）For T shape structure, in thrust disc（5）It is equipped with stepped hole（51）, enclosed cooling fan（6）Bottom end stretch in step
Hole（51）It is interior.
8. the enclosed installation structure of cooling fan of magnetic suspension motor rotor as described in claim 1, it is characterised in that：The magnetic
Bearing block（1）Axial direction be equipped with ventilation hole（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869344.1U CN207926368U (en) | 2017-12-28 | 2017-12-28 | A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869344.1U CN207926368U (en) | 2017-12-28 | 2017-12-28 | A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207926368U true CN207926368U (en) | 2018-09-28 |
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ID=63607894
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721869344.1U Active CN207926368U (en) | 2017-12-28 | 2017-12-28 | A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207926368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979232A (en) * | 2017-12-28 | 2018-05-01 | 南京磁谷科技有限公司 | A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor |
-
2017
- 2017-12-28 CN CN201721869344.1U patent/CN207926368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979232A (en) * | 2017-12-28 | 2018-05-01 | 南京磁谷科技有限公司 | A kind of enclosed installation structure of cooling fan of magnetic suspension motor rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co.,Ltd. Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU Ltd.,Corp. |
|
| CP03 | Change of name, title or address |