CN2381060Y - Permanent-magnet inductor type low-speed synchronous motor - Google Patents
Permanent-magnet inductor type low-speed synchronous motor Download PDFInfo
- Publication number
- CN2381060Y CN2381060Y CN 98222851 CN98222851U CN2381060Y CN 2381060 Y CN2381060 Y CN 2381060Y CN 98222851 CN98222851 CN 98222851 CN 98222851 U CN98222851 U CN 98222851U CN 2381060 Y CN2381060 Y CN 2381060Y
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- utility
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- synchronous motor
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- Expired - Fee Related
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Abstract
The utility model relates to a permanent-magnet inductor type low-speed synchronous motor, which comprises a casing, a stator iron core, a winding group, a rotor iron core, an alnico, and a rotary shaft. The utility model is characterized in that stator core punching plates are provided with uniformly distributed dental sockets, and the width of the top of the dental socket is 0.38-0.4 of the distance of the dental socket. The utility model has reasonable structure, and simple manufacture; the rated synchronous speed is 136.36 revolutions per minute. Compounded with a variable-frequency controller, the stepless speed regulation can be realized. The utility model can take the place of asynchronous motors and is provided with a gear box transmission so as to suit for the machine tool transmission device, and can meet the demands of large low speed torque and small high speed torque.
Description
The utility model relates to a kind of motor, specifically a kind of permanent magnet induction low-speed synchronous motor.
We know that at present, asynchronous motor and its rotating speed of synchronous motor of producing is generally 750-3000 rev/min, is high rotating speed both at home and abroad.People are for obtaining the slow-speed of revolution, the power of big torque, and a kind of way is the gear reduction by machinery, its structure is more complicated often; Another kind of way is to slow down with frequency converter, and frequency converter deceleration rotating speed is low more, torque is more little, when low speed, because torque is too little, often can not satisfy normal need of work.CN2074950U discloses a kind of low-speed synchronous motor, it comprises casing, stator core, stator winding, rotor core, magnet steel, rotating shaft, stator iron-core lamination is provided with large and small tooth teeth groove, is suitable for being adjusted to 1-130 rev/min low speed, and the adjusting range of its rotating speed is generally narrow.
The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art, provides a kind of structure reasonable, need not any deceleration device, directly uses three-phase or single phase poaer supply, can obtain the permanent magnet induction low-speed synchronous motor of the slow-speed of revolution, big torque.
For achieving the above object, a kind of permanent magnet induction low-speed synchronous motor, include casing, stator core, winding, rotor core, magnet steel, rotating shaft, it is characterized in that stator iron-core lamination is provided with equally distributed teeth groove, tooth top width accounts for the 0.38-0.4 of tooth pitch.
The utility model is because stator iron-core lamination is provided with equally distributed teeth groove, narrow, the groove width of tooth, it is different from the stator punching size toothing of prior art, the teeth groove distributed architecture that also is different from asynchronous motor, it is simple in structure, match with corresponding rotor, can directly obtain the slow-speed of revolution, big torque, be equipped with frequency-variable controller and can realize stepless speed regulation, speed adjustable range is wide, it is big to export torque during low speed, just the opposite with general induction motor drive performance, can be used for the occasion that asynchronous motor is furnished with the gear box deceleration transmission.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model stator laminating structure schematic diagram.
As can be seen from Figure 1, a kind of motor, it is made up of stator, rotor, air gap.Stator is made of casing, stator core 6, winding 5, and casing includes front and rear cover 2,13 and housing 4, and housing 4 bottoms also are provided with support 11.Rotor is made of rotor core 7, magnet steel 8, rotating shaft 1, and rotating shaft 1 is installed on the casing front and rear cover by bearing 3,12, and rotor-core lamination is processed with teeth groove, and it evenly distributes, no winding on it.Magnet steel 8 is a disc, is axial charging, forms a pair of N, the S utmost point, and it is placed between the two iron leg hearts.For increasing the output torque, the utility model also can increase the sheet number of hop count unshakable in one's determination and magnet steel.Rotor core 7 and magnet steel 8 are fixed in the rotating shaft 1 by magnetic shield 9 and magnetism-isolating loop 10 suits, form rotor.For non-magnetic rotating shaft, as the rotating shaft with stainless steel material processing, rotor core and magnet steel can directly be sleeved in the rotating shaft, and do not need magnetic shield and magnetism-isolating loop.
The utility model stator core is combined by stator iron-core lamination, and stator iron-core lamination is provided with equally distributed teeth groove, and tooth is narrow, groove width.The ratio of its tooth top width bt and tooth square t is 0.38-0.4: 1, as shown in Figure 2.The large and small toothing that this is different from existing low speed synchromotor stator iron-core lamination, the teeth groove that also is different from asynchronous motor distributes.This teeth groove distributed architecture is simple.The embedded winding 5 that is placed with of teeth groove, winding can be according to actual needs, coiled three phase windings or single-phase winding, the utility model motor can directly use three-phase 380V/220V power supply or single-phase 220V power supply like this.The utility model is owing to adopt equally distributed teeth groove structure, when motor zero load and load, electric current changes little, and the long-term stall of motor can not burn yet, and the utility model need not any deceleration device, can directly obtain the slow-speed of revolution, big torque, be equipped with frequency-variable controller and can realize stepless speed regulation, speed adjustable range is 1-2000 rev/min, the speed adjustable range broadness, particularly torque is big during the utility model motor low cruise, descends with rising, the torque of rotating speed.Below rated frequency 50HZ, be speed regulation by constant torque, 50HZ is above to be constant-power speed regulation.
The utility model is rational in infrastructure, manufactures simply, and specified synchronous speed is 13636 rev/mins, is equipped with frequency-variable controller, can realize stepless speed regulation.Can replace asynchronous motor to be furnished with gearbox drive, be specially adapted to the lathe transmission device, it is big to satisfy low speed torque, the requirement that high speed torque is little.
Claims (1)
1, a kind of permanent magnet induction low-speed synchronous motor, it includes casing, stator core, winding, rotor core, magnet steel, rotating shaft, it is characterized in that stator iron-core lamination is provided with equally distributed teeth groove, and tooth top width accounts for the 0.38-0.4 of tooth pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222851 CN2381060Y (en) | 1998-11-03 | 1998-11-03 | Permanent-magnet inductor type low-speed synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98222851 CN2381060Y (en) | 1998-11-03 | 1998-11-03 | Permanent-magnet inductor type low-speed synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2381060Y true CN2381060Y (en) | 2000-05-31 |
Family
ID=33974086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98222851 Expired - Fee Related CN2381060Y (en) | 1998-11-03 | 1998-11-03 | Permanent-magnet inductor type low-speed synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2381060Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438279C (en) * | 2006-01-23 | 2008-11-26 | 湖南大学 | Composite excitation permanent magnet synchronous variable-speed motor |
-
1998
- 1998-11-03 CN CN 98222851 patent/CN2381060Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438279C (en) * | 2006-01-23 | 2008-11-26 | 湖南大学 | Composite excitation permanent magnet synchronous variable-speed motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |