CN103248149A - High dynamic response rare-earth permanent magnet servo motor - Google Patents
High dynamic response rare-earth permanent magnet servo motor Download PDFInfo
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- CN103248149A CN103248149A CN2013101513096A CN201310151309A CN103248149A CN 103248149 A CN103248149 A CN 103248149A CN 2013101513096 A CN2013101513096 A CN 2013101513096A CN 201310151309 A CN201310151309 A CN 201310151309A CN 103248149 A CN103248149 A CN 103248149A
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- iron core
- motor shaft
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Abstract
The invention relates to a high dynamic response rare-earth permanent magnet servo motor, and belongs to the technical field of motors. The high dynamic response rare-earth permanent magnet servo motor comprises a stator and a rotor, wherein the stator comprises a stator iron core and a stator winding mounted on the stator iron core; the stator iron core is formed by overlapping a stator punching sheet; the rotor comprises a motor shaft which is sleeved with a rotor iron core; the periphery of the rotor iron core is wound by a permanent magnet; a front bearing and a rear bearing are arranged at two ends of the motor shaft respectively; a front end cover and the rear end cover are connected with the motor shaft through the front bearing and the rear bearing respectively; and an inner ring of and an outer ring of uniformly distributed through holes are formed in the stator punching sheet, and after the stator punching sheet is overlapped, the inner ring of and the outer ring of uniformly distributed through holes form a first inner cold air channel and a second inner cold air channel of the stator iron core respectively. The manufactured motor has the advantages of large power density, small rotational inertia, small loss, small noises and adaptability to machinery equipment in quick response or frequent starting occasions.
Description
Technical field
The invention belongs to technical field of motors, be specifically related to a kind of high dynamic response rare earth permanent magnet servomotor, be applicable to the plant equipment of quick response or Fraquent start occasion, as injection molding machine etc.
Background technology
Present existing servomotor exists following shortcoming because its moment of inertia is big, and electrical time constant is big 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 big, and response speed is very slow, and precision is lower; The relative contradiction with cooling procedure of high heat during pressurize; The hydraulic system cleannes are required height, and noise is big, and maintenance cost rises.
Summary of the invention
Purpose of the present invention is exactly to satisfy the plant equipment of quick response or Fraquent start occasion at existing servomotor, and a kind of high dynamic response rare earth permanent magnet servomotor is provided.
The technical solution used in the present invention is: it comprises stator and rotor, described stator is made of the stator winding of installing on stator core and the stator core, stator core is overrided to form by stator punching, described rotor comprises motor shaft, be with rotor core on the motor shaft, 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 motor shaft with rear bearing by fore bearing respectively with rear end cap, described stator punching is provided with the equally distributed through hole of inside and outside two circles, forms the first interior cold air duct and the second interior cold air duct of stator core after the equally distributed through hole of inside and outside two circles laminates by stator punching respectively.
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 cost, reduces the function of loss to reach.
The present invention's 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 function of response speed.
The present invention has advantages such as power density is big, 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 longitudinal profile structural representation of the present invention;
Fig. 2 is the stator laminating structure schematic diagram;
Fig. 3 is the rotor structure schematic diagram.
Wherein, 1-the first interior cold air duct; Cold air duct in 2-the second; 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 present invention is described in further detail below in conjunction with the drawings and specific embodiments, be convenient to be well understood to the present invention, but they do not constitute restriction to the present invention.
As shown in Figure 1, the present invention includes stator and rotor, stator is made of the stator winding of installing on stator core 6 and the stator core 67, stator core 6 is overrided to form by stator punching, and rotor comprises motor shaft 3, is with rotor core 4 on the motor shaft 3, 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 motor shaft 3 with rear bearing 11 by fore bearing 10 respectively with rear end cap 9, 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 equally distributed through hole of inside and outside two circles, after laminating by stator punching, the equally distributed through hole of inside and outside two circles forms the first interior cold air duct 1 and the second interior cold air duct 2 of stator core 6 respectively, 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 the consumption of copper cash simultaneously, reduce copper loss, reduce cost 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 function of response speed.
The content that this specification is not described in detail belongs to this area professional and technical personnel's known prior art.
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 the stator core, stator core is overrided to form by stator punching, described rotor comprises motor shaft, be with rotor core on the motor shaft, 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 motor shaft with rear bearing by fore bearing respectively with rear end cap, it is characterized in that: described stator punching is provided with the equally distributed through hole of inside and outside two circles, forms the first interior cold air duct and the second interior cold air duct of stator core after the equally distributed through hole of inside and outside two circles laminates by stator punching respectively.
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 |
|---|---|---|---|
| CN2013101513096A CN103248149A (en) | 2013-04-27 | 2013-04-27 | High dynamic response rare-earth permanent magnet servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101513096A CN103248149A (en) | 2013-04-27 | 2013-04-27 | High dynamic response rare-earth permanent magnet servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103248149A true CN103248149A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101513096A Pending CN103248149A (en) | 2013-04-27 | 2013-04-27 | High dynamic response rare-earth permanent magnet servo motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103248149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059176A (en) * | 2016-08-12 | 2016-10-26 | 中车永济电机有限公司 | Full-laminated motor engine base with double-circulation air channel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002058204A (en) * | 2000-08-11 | 2002-02-22 | Nippon Densan Corp | Motor |
| CN201113592Y (en) * | 2007-09-26 | 2008-09-10 | 宁波菲仕电机技术有限公司 | Alternating-current permanent magnetism servo- electric motor hollow shafting rotor |
| CN202004556U (en) * | 2010-07-16 | 2011-10-05 | 浙江特种电机有限公司 | Novel three-phase alternating-current servo motor |
| JP2011217450A (en) * | 2010-03-31 | 2011-10-27 | Hitachi Ltd | Stacked stator |
| CN202260682U (en) * | 2011-08-11 | 2012-05-30 | 南阳防爆集团股份有限公司 | Stator punching sheet with double-row axial air vents uniformly distributed at yoke part |
| CN203278584U (en) * | 2013-04-27 | 2013-11-06 | 武汉登奇机电技术有限公司 | High dynamic response rare-earth permanent magnetism servo motor |
-
2013
- 2013-04-27 CN CN2013101513096A patent/CN103248149A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002058204A (en) * | 2000-08-11 | 2002-02-22 | Nippon Densan Corp | Motor |
| CN201113592Y (en) * | 2007-09-26 | 2008-09-10 | 宁波菲仕电机技术有限公司 | Alternating-current permanent magnetism servo- electric motor hollow shafting rotor |
| JP2011217450A (en) * | 2010-03-31 | 2011-10-27 | Hitachi Ltd | Stacked stator |
| CN202004556U (en) * | 2010-07-16 | 2011-10-05 | 浙江特种电机有限公司 | Novel three-phase alternating-current servo motor |
| CN202260682U (en) * | 2011-08-11 | 2012-05-30 | 南阳防爆集团股份有限公司 | Stator punching sheet with double-row axial air vents uniformly distributed at yoke part |
| CN203278584U (en) * | 2013-04-27 | 2013-11-06 | 武汉登奇机电技术有限公司 | High dynamic response rare-earth permanent magnetism servo motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059176A (en) * | 2016-08-12 | 2016-10-26 | 中车永济电机有限公司 | Full-laminated motor engine base with double-circulation air channel |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130814 |