CN201750277U - High power variable frequency high speed motor with speed over 10000 rpm - Google Patents
High power variable frequency high speed motor with speed over 10000 rpm Download PDFInfo
- Publication number
- CN201750277U CN201750277U CN2010205107708U CN201020510770U CN201750277U CN 201750277 U CN201750277 U CN 201750277U CN 2010205107708 U CN2010205107708 U CN 2010205107708U CN 201020510770 U CN201020510770 U CN 201020510770U CN 201750277 U CN201750277 U CN 201750277U
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- motor
- stator
- cylindrical shell
- cooling air
- speed
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Abstract
The utility model discloses a high power variable frequency high speed motor with speed over 10000 rpm comprising two parallely disposed bearing housings, which are connected with each other through a stator cylindrical shell. A motor shaft is horizontally disposed in the stator cylindrical shell, and two ends of the motor shaft are respectively inserted in the two bearing housings. The motor shaft is provided with a rotor, and a stator is disposed in the stator cylindrical shell. The stator is provided with a coil winding, and the rotor is a motor rotor core, two ends of which are respectively provided with retaining rings. The stator is a motor stator core, and two ends of the motor shaft are respectively connected with the two bearing housing through the bearing. The high speed motor provided in the utility model has advantages of providing higher rotating speed, satisfying the requirements of all high speed equipment simplified transmission system, and improving the working efficiency of speed adjustment optimization system.
Description
Technical field
The utility model belongs to the power-equipment technical field, relates to a kind of high-power frequency conversion motor, is specifically related to a kind of ten thousand commentaries on classics high-power frequency conversion high-speed motors that surpass.
Background technology
At present, the following frequency-conversion high-speed motor of 30KW has had development preferably, and maximum speed has reached commentaries on classics up to ten thousand.But the adjustable frequency motor that 50KW is above, its frequency that is suitable for only is below 75 hertz, both made the above adjustable frequency motor of indivedual 50KW can be used for upper frequency, and also only limited to multipole several type, in fact the attainable Revolution Per Minute less than 5,000 of high power motor is changeed; And be starved of more high-revolving high-power frequency conversion motor in the actual application, to simplify the drive system of various high-speed equipments, improve the operational efficiency of speed governing optimization system; Existing high-power frequency conversion motor can't reach instructions for use.Hindering the high-revolving key of variable-frequency motor is the mechanical strength and the bearing of rotor.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of this utility model provides a kind of ten thousand commentaries on classics high-power frequency conversion high-speed motors that surpass, higher rotating speed can be provided, satisfy various high-speed equipments drive system, the requirement that provides speed governing to optimize the system operation efficient are provided.
For achieving the above object, the technical scheme that the utility model adopted is, a kind of ten thousand commentaries on classics high-power frequency conversion high-speed motors that surpass, comprise two bearing housings that are arranged side by side, this two bearings case is connected by having decided cylindrical shell 14, be horizontally disposed with motor shaft 3 in the stator cylindrical shell 14, the two ends of motor shaft 3 are stretched into respectively in two bearing housings, motor shaft 3 is provided with rotor, in the stator cylindrical shell 14 stator is installed, and coil windings is installed on the stator, rotor is a motor rotor core 7, the two ends of motor rotor core 7 are separately installed with retaining ring, and stator is a motor stator core 5, and the two ends of motor shaft 3 are connected with the two bearings case by bearing respectively.
Motor rotor core 7 employing thickness are that the lamination 16 of 1mm～2mm is formed by stacking.
Lamination 16 is provided with the groove 17 of remaining silent.
Retaining ring is a rotor core end retaining ring 10.
Bearing adopts sliding bearing.
Motor stator core 5 external peripheral surfaces are provided with many cooling air channels 6 that parallel with motor stator core 5 axis, be respectively arranged with the cooling air import 15 and the cooling air outlet 13 that communicate with stator cylindrical shell 14 endoporus on the sidewall of stator cylindrical shell 14, cooling air import 15 communicates with cooling air import 15 and cooling air outlet 13 respectively with the two ends of many cooling air channels 6 respectively, and the sidewall outside of stator cylindrical shell 14 is equipped with cooling blower 4.
The utility model frequency-conversion high-speed motor improves the setting of rotor bearing by improving the mechanical strength of motor rotor, make that the commentaries on classics scooter per minute ten thousand of motor changes more than; And the speedup drive system of high speed machine, energy savings, economical with materials have greatly been simplified.
Description of drawings
Fig. 1 is the structural representation of the utility model frequency-conversion high-speed motor.
Fig. 2 is a structural representation of forming the lamination of rotor in the utility model frequency-conversion high-speed motor.
Among the figure, 1. horizonally split formula after the bearing box, 2. horizonally split formula rear bearing, 3. motor shaft, 4. cooling blower, 5. motor stator core, 6. cooling air channel, 7. motor rotor core, 8. motor down-lead box, 9. motor windings, 10. rotor core end retaining ring, 11. horizonally split formula fore bearing casees, 12. horizonally split formula fore bearing, 13. cooling air outlets, 14. stator cylindrical shells, 15. the cooling air import, 16. laminations, 17. grooves.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in drawings, the structure of the utility model frequency-conversion high-speed motor, comprise the horizonally split formula after the bearing box 1 and the horizonally split formula fore bearing case 11 that are arranged side by side, be provided with the stator cylindrical shell 14 of tubular between horizonally split formula after the bearing box 1 and the horizonally split formula fore bearing case 11, the two ends of stator cylindrical shell 14 are connected with horizonally split formula fore bearing case 11 with horizonally split formula after the bearing box 1 respectively.The outer wall of stator cylindrical shell 14 is provided with motor down-lead box 8, be horizontally disposed with motor shaft 3 in the stator cylindrical shell 14, one end of motor shaft 3 passes stator cylindrical shell 14 and stretches in the horizonally split formula after the bearing box 1, and be connected with horizonally split formula after the bearing box 1 by horizonally split formula rear bearing 2, the other end of motor shaft 3 passes stator cylindrical shell 14 successively and horizonally split formula fore bearing case 11 stretches out outside the horizonally split formula fore bearing case 11, and be connected with horizonally split formula fore bearing case 11 by horizonally split formula fore bearing 12, be coaxially arranged with motor rotor core 7 on the motor shaft 3, the two ends of motor rotor core 7 are separately installed with the rotor core end retaining ring 10 that the high tensile metal material is made, rotor core end retaining ring (10) tightly is buckled on the aluminium end ring at rotor core two ends, is used to strengthen the mechanical strength of cage rotor aluminium end ring.Motor shaft 3 can drive motor rotor core 7 and 10 rotations of rotor core end retaining ring.Motor rotor core 7 and rotor core end retaining ring 10 are positioned at stator cylindrical shell 14.The motor stator core 5 of tubular is installed on the inwall of stator cylindrical shell 14, motor stator core 5 is between stator cylindrical shell 14 and motor rotor core 7, motor stator core 5 is provided with a plurality of motor windings 9, and the lead-out wire of a plurality of motor windings 9 inserts in the motor down-lead box 8.
The external peripheral surface of motor stator core 5 is provided with many cooling air channels 6 that parallel with motor stator core 5 axis.Be respectively arranged with the cooling air import 15 and the cooling air outlet 13 that communicate with stator cylindrical shell 14 endoporus on the sidewall of stator cylindrical shell 14, cooling air import 15 communicates with an end of many cooling air channels 6 respectively, and the other end of many cooling air channels 6 communicates with cooling air outlet 13 respectively.The sidewall outside of stator cylindrical shell 14 also is equipped with cooling blower 4, and the air outlet of cooling blower 4 communicates with cooling air import 15.
Motor rotor core 7 employing thickness are that the lamination 16 of 1～2mm is formed by stacking, and the structure of this lamination 16 is evenly equipped with a plurality of grooves 17 as shown in Figure 2 on the lamination 16, and groove 17 is the groove of remaining silent, the mechanical strength of motor rotor core 7 when running up with raising.
Horizonally split formula fore bearing 12 and horizonally split formula rear bearing 2 all adopt sliding bearing.
When motor moves under commentaries on classics up to ten thousand at a high speed, the centrifugal force of rotor than usual rotating speed to be no more than the centrifugal force of 3,000 rotors that change big doubly a lot, under this kind situation, be provided with the rotor that the lamination of open slot forms and can't bear the centrifugal force that produce down at a high speed that change up to ten thousand at all, centrifugal force can cause the rotor core shape of blooming to expand and lost efficacy; And the aluminium end ring at iron core two ends also can be because of high centrifugal force fracture failure; Rotor in this high-speed motor adopts the lamination that is provided with the groove of remaining silent to be formed by stacking, this groove of remaining silent has overcome centrifugal force effectively, make rotor have the ability of well resisting centrifugal force, the retaining ring 10 of rotor tip is held on the aluminium ring, improved the centrifugal force resistant ability of aluminium ring greatly, guaranteed that motor can safe operation under commentaries on classics up to ten thousand at a high speed.
By frequency converter variable frequency power supply is inserted motor down-lead box 8, to there be the pressure lubricating oil content not insert horizonally split formula fore bearing case 11 and horizonally split formula after the bearing box 1 again, with the lubricated needs of safeguard level dissection type rear bearing 2 and horizonally split formula fore bearing 12, start cooling blower 4, then, can start frequency converter, promote frequency, make the rotating speed that electrical motors arrives to be needed.Cooling blower 4 is sent into cooling air in the stator cylindrical shell 14 by cooling air import 15 in the course of the work, the cooling air that enters in the stator cylindrical shell 14 enters cooling air channel 6 from the end that cooling air channel 6 communicates with cooling air import 15, and arrive the end that cooling air channels 6 communicate with cooling air outlet 13 by cooling air channel 6, then, discharge outside the stator cylindrical shell 14 from cooling air outlet 13, in the running of cooling air, take away the heat of motor internal, realize cooling motor.
Claims (6)
1. one kind surpasses ten thousand commentaries on classics high-power frequency conversion high-speed motors, comprise two bearing housings that are arranged side by side, this two bearings case is connected by stator cylindrical shell (14), be horizontally disposed with motor shaft (3) in the stator cylindrical shell (14), the two ends of motor shaft (3) are stretched into respectively in two bearing housings, motor shaft (3) is provided with rotor, the stator cylindrical shell is equipped with stator in (14), coil windings is installed on the stator, it is characterized in that described rotor is motor rotor core (7), the two ends of motor rotor core (7) are separately installed with retaining ring, described stator is motor stator core (5), and the two ends of described motor shaft (3) are connected with the two bearings case by bearing respectively.
2. high-power frequency conversion high-speed motor according to claim 1 is characterized in that, described motor rotor core (7) employing thickness is that the lamination (16) of 1mm～2mm is formed by stacking.
3. high-power frequency conversion high-speed motor according to claim 2 is characterized in that, described lamination is provided with the groove (17) of remaining silent.
4. high-power frequency conversion high-speed motor according to claim 1 is characterized in that, described retaining ring is a rotor core end retaining ring (10).
5. high-power frequency conversion high-speed motor according to claim 1 is characterized in that, described bearing adopts sliding bearing.
6. high-power frequency conversion high-speed motor according to claim 1, it is characterized in that, described motor stator core (5) external peripheral surface is provided with many cooling air channels (6) that parallel with motor stator core (5) axis, be respectively arranged with the cooling air import (15) and the cooling air outlet (13) that communicate with stator cylindrical shell (14) endoporus on the sidewall of stator cylindrical shell (14), cooling air import (15) communicates with cooling air import (15) and cooling air outlet (13) respectively with the two ends of many cooling air channels (6) respectively, and the sidewall outside of stator cylindrical shell (14) is equipped with cooling blower (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205107708U CN201750277U (en) | 2010-08-30 | 2010-08-30 | High power variable frequency high speed motor with speed over 10000 rpm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205107708U CN201750277U (en) | 2010-08-30 | 2010-08-30 | High power variable frequency high speed motor with speed over 10000 rpm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201750277U true CN201750277U (en) | 2011-02-16 |
Family
ID=43584949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205107708U Expired - Fee Related CN201750277U (en) | 2010-08-30 | 2010-08-30 | High power variable frequency high speed motor with speed over 10000 rpm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201750277U (en) |
-
2010
- 2010-08-30 CN CN2010205107708U patent/CN201750277U/en not_active Expired - Fee Related
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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: 20110216 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |