CN203278584U - High dynamic response rare-earth permanent magnetism servo motor - Google Patents
High dynamic response rare-earth permanent magnetism servo motor Download PDFInfo
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- CN203278584U CN203278584U CN 201320221465 CN201320221465U CN203278584U CN 203278584 U CN203278584 U CN 203278584U CN 201320221465 CN201320221465 CN 201320221465 CN 201320221465 U CN201320221465 U CN 201320221465U CN 203278584 U CN203278584 U CN 203278584U
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- dynamic response
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Abstract
The utility model relates to a high dynamic response rare-earth permanent magnetism servo motor, and belongs to the motor technology field. The high dynamic response rare-earth permanent magnetism servo motor comprises a stator and a rotor, wherein the stator is formed by a stator core and a stator winding installed on the stator core, and the stator core is formed by lamination of stator punching sheets; the rotor comprises a motor shaft sleeved with a rotor core coated with a permanent magnet, two ends of the motor shaft are respectively provided with a fore bearing and a rear bearing, and a fore end cover and a rear end cover are respectively connected with the motor shaft through the fore bearing and the rear bearing; and each stator punching sheet is provided with an inner ring and an outer ring of through holes in uniform distribution, and a first inner cold air duct and a second inner cold air duct of the stator core are respectively formed by the inner ring and the outer ring of the through holes in uniform distribution through the lamination of the stator punching sheets. The high dynamic response rare-earth permanent magnetism servo motor is large in power density, small in rotational inertia, low in losses and low in noises and the like, and is applicable to machinery equipment used in quick response or frequent starting occasions.
Description
Technical field
The utility model belongs to technical field of motors, is specifically related to a kind of high dynamic response rare earth permanent magnet servomotor, is applicable to the plant equipment of fast response or Fraquent start occasion, as injection molding machine etc.
Background technology
Present existing servomotor is because its moment of inertia is large, and electrical time constant is large, exists following shortcoming when being used in the plant equipment of quick response or Fraquent start occasion: when cooling, pressurize, motor still keeps high speed rotating, and loss is very serious; When producing product, moment of inertia is very large, and response speed is very slow, and precision is lower; High heat during pressurize contradiction relative to cooling procedure; High to the requirement of hydraulic system cleannes, noise is large, and maintenance cost rises.
The utility model content
The purpose of this utility model is exactly can not satisfy the plant equipment of quick response or Fraquent start occasion for existing servomotor, and a kind of high dynamic response rare earth permanent magnet servomotor is provided.
the technical solution adopted in the utility model is: it comprises stator and rotor, described stator is made of the stator winding of installing on stator core and stator core, stator core is overrided to form by stator punching, described rotor comprises motor shaft, on motor shaft, cover has rotor core, the rotor core periphery is coated with permanent magnet, described motor shaft two ends are respectively equipped with fore bearing and rear bearing, front end housing is connected with rear end cap by fore bearing and is connected with motor shaft with rear bearing, described stator punching is provided with the inside and outside two equally distributed through holes of circle, the inside and outside two equally distributed through holes of circle laminate rear the first interior cold air duct and the second interior cold air duct that forms respectively stator core by stator punching.
The beneficial effect of taking such scheme is that the two interior cold air duct structure of stator core satisfies the power density requirement by strengthening cooling air channel reduction temperature rise, and reduces the consumption of copper cash, reduces copper loss, reduces costs, reduces the function of loss to reach.
The utility model technical scheme preferably is: described rotor core is hollow structure.
The beneficial effect of taking such scheme is the rotor core inner hollow, has namely alleviated motor weight, has also reduced the moment of inertia of motor, reaches the fast response time function.
The utlity model has the advantages such as power density is large, moment of inertia is little, loss is little, noise is little, can be adapted to the plant equipment of response fast or Fraquent start occasion.
Description of drawings
Fig. 1 is the utility model longitudinal profile structural representation;
Fig. 2 is the stator laminating structure schematic diagram;
Fig. 3 is the rotor structure schematic diagram.
Wherein, the 1-the first interior cold air duct; The 2-the second interior cold air duct; 3-motor shaft; 4-rotor core; 5-permanent magnet; 6-stator core; 7-stator winding; 8-front end housing; 9-rear end cap; 10-fore bearing; 11-rear bearing; 12-wavy spring; 13-circlip for hole.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, is convenient to be well understood to the utility model, but they do not consist of restriction to the utility model.
As shown in Figure 1, the utility model comprises stator and rotor, stator is made of the stator winding 7 of installing on stator core 6 and stator core 6, stator core 6 is overrided to form by stator punching, and rotor comprises motor shaft 3, and on motor shaft 3, cover has rotor core 4, rotor core 4 peripheries are coated with permanent magnet 5, motor shaft 3 two ends are respectively equipped with fore bearing 10 and rear bearing 11, and front end housing 8 is connected with rear end cap respectively to be connected with rear bearing by fore bearing 10 and is connected with motor shaft 3, and stator core 6 is between two end cap.Fore bearing 10 and rear bearing 11 outsides all are equipped with wavy spring 12 and circlip for hole 13, in order to apply prestressing force to bearing, reduce the noise of bearing operation, improve running accuracy and the stationarity of bearing.
as shown in Figure 2, stator punching is provided with the inside and outside two equally distributed through holes of circle, the inside and outside two equally distributed through holes of circle laminate rear the first interior cold air duct 1 and the second interior cold air duct 2 that forms respectively stator core 6 by stator punching, stator core 6 is under the prerequisite that guarantees motor performance and structural requirement, stator core 6 internal diameters are reduced, single air channel cooling structure with stator core 6 changes two air channels cooling structure into simultaneously, like this, the increasing cooling air channel reduces temperature rise and satisfies the power density requirement, reduce simultaneously the consumption of copper cash, reduce copper loss, reduce costs to reach, reduce the function of loss.
As shown in Figure 3, rotor comprises motor shaft 3, rotor core 4 and permanent magnet 5.Rotor core 4 external diameters reduce the while the solid inner hollow structure that changes into, have both alleviated motor weight, have also reduced the moment of inertia of motor, reach the fast response time function.
The content that this specification is not described in detail belongs to the known prior art of this area professional and technical personnel.
Claims (2)
1. high dynamic response rare earth permanent magnet servomotor, it comprises stator and rotor, described stator is made of the stator winding of installing on stator core and stator core, stator core is overrided to form by stator punching, described rotor comprises motor shaft, on motor shaft, cover has rotor core, the rotor core periphery is coated with permanent magnet, described motor shaft two ends are respectively equipped with fore bearing and rear bearing, front end housing is connected with rear end cap by fore bearing and is connected with motor shaft with rear bearing, it is characterized in that: described stator punching is provided with the inside and outside two equally distributed through holes of circle, the inside and outside two equally distributed through holes of circle laminate rear the first interior cold air duct and the second interior cold air duct that forms respectively stator core by stator punching.
2. a kind of high dynamic response rare earth permanent magnet servomotor according to claim 1, it is characterized in that: described rotor core is hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320221465 CN203278584U (en) | 2013-04-27 | 2013-04-27 | High dynamic response rare-earth permanent magnetism servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320221465 CN203278584U (en) | 2013-04-27 | 2013-04-27 | High dynamic response rare-earth permanent magnetism servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278584U true CN203278584U (en) | 2013-11-06 |
Family
ID=49508909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320221465 Expired - Lifetime CN203278584U (en) | 2013-04-27 | 2013-04-27 | High dynamic response rare-earth permanent magnetism servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248149A (en) * | 2013-04-27 | 2013-08-14 | 武汉登奇机电技术有限公司 | High dynamic response rare-earth permanent magnet servo motor |
-
2013
- 2013-04-27 CN CN 201320221465 patent/CN203278584U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248149A (en) * | 2013-04-27 | 2013-08-14 | 武汉登奇机电技术有限公司 | High dynamic response rare-earth permanent magnet servo motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: FOSHAN GOLDEN AGE MOTOR TECHNOLOGY CO.,LTD. Assignor: GOLDEN-AGE MOTOR TECHNOLOGY CO.,LTD. Contract record no.: 2017440000005 Denomination of utility model: High dynamic response rare-earth permanent magnet servo motor Granted publication date: 20131106 License type: Common License Record date: 20170122 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |