CN201846156U - Rotor module of servo motor - Google Patents
Rotor module of servo motor Download PDFInfo
- Publication number
- CN201846156U CN201846156U CN2010206001768U CN201020600176U CN201846156U CN 201846156 U CN201846156 U CN 201846156U CN 2010206001768 U CN2010206001768 U CN 2010206001768U CN 201020600176 U CN201020600176 U CN 201020600176U CN 201846156 U CN201846156 U CN 201846156U
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- China
- Prior art keywords
- magnetic shoe
- servo motor
- rotor core
- rotor
- motor rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a rotor module of a servo motor, which is low in cost. The rotor module comprises a rotor iron core formed by laminating silicon steel sheets, at least two steel magnets made from neodymium iron boron permanent magnetic materials are coated on the periphery of the rotor iron core, the amount Z of the steel magnets is a positive even number, and the steel magnets are arranged according to the magnetic polarity sequence of N-S-N. As the expensive neodymium iron boron permanent magnetic materials are coated outside the rotor iron core, excellent performance of all the neodymium iron boron permanent magnetic materials is functioned sufficiently, usage of the neodymium iron boron permanent magnetic materials is reduced, and manufacturing cost of the servo motor is then reduced. In addition, the rotor module is simple in structure.
Description
Technical field
The utility model relates to servomotor and makes the field, and in particular, the utility model is a kind of servo motor rotor module about servomotor rotor structure.
Background technology
Nd-Fe-Bo permanent magnet material is the Nd-Fe-B permanent magnetic material, because it has excellent properties such as high remanent magnetism, high-temperature coefficient, high-coercive force and has extensive use in electromechanics trade.The Nd-Fe-B magneto is because its volume is little, and the precision height operates steadily, the overload capacity height, and performance is good etc., and characteristics are extensively applied to various fields.Select the Nd-Fe-B magneto for use in the elevator field, can realize the big torque of the slow-speed of revolution, make elevator device have outstanding advantage at aspects such as energy-saving and environmental protection; Secondly select the efficient height for use in marine vessel power propelling field, light-weighted Nd-Fe-B permagnetic synchronous motor can make the Ship Electrical Power System compact conformation, fuel saving, and operational efficiency is higher; In addition the Nd-Fe-B magneto all has good application prospects in fields such as wind power generation, oil pumper, textile machine, high efficient servo systems, and development space is very vast.Yet because Nd-Fe-Bo permanent magnet material belongs to rare earth material, the price comparison costliness.How the material with costliness is used on the edge of a knife, makes the motor of production that excellent performance be arranged, and suitable price is arranged again, is that electromechanics trade is concerned about.
Patent Office of the People's Republic of China has announced a CN2924896Y document on July 18th, 2007, name is called a kind of permanent-magnet servo motor, this servomotor is made up of institutes such as stator core, rotor core, rotor overcoats, the rotor core that is provided with in the middle of the axle, what adopt is that the rare-earth Nd-Fe-B permanent magnet processes, and the rotor overcoat that one deck stainless steel material is stamped to form has been wrapped up in the outer ring of rotor core.Stator core is provided with equally distributed skewed slot, and magnet is difficult for breaking when assembling, and motor three-phase waveform is an evenly trapezoidal wave of rule, has reduced magnetic pull, has low noise, high effect, machine operation stable performance, no dead point, speed governing is characteristics stably, have prolonged the useful life of motor.The shortcoming of this servomotor is that whole rotor core is processed by the rare-earth Nd-Fe-B permanent magnet, thereby cost is higher.
Summary of the invention
The utility model is processed by the rare-earth Nd-Fe-B permanent magnet for solving the whole rotor core that exists in the prior art, thereby the higher shortcoming of cost, and a kind of module of servo motor rotor cheaply is provided.
The technical scheme that its technical problem that solves the utility model adopts is: the utility model comprises the rotor core that is overrided to form by the silicon steel punching, be enclosed with the magnet steel that at least two Nd-Fe-Bo permanent magnet materials are made on the circumference of rotor core, the quantity Z of magnet steel is a positive even numbers, and according to the pole polarity sequence arrangement of N-S-N.Rotor core adopts common silicon steel punching to be overrided to form, and the magnet steel made from Nd-Fe-Bo permanent magnet material in its periphery wraps, and the excellent properties of Nd-Fe-Bo permanent magnet material is fully used, and consumption significantly reduces, just so-called good steel is used on the edge of a knife, has reduced production cost; Make the rotor module of standard series by this structure,, the rotor module of varying number is arranged side by side on motor shaft,, standardization in enormous quantities, modular production model to adapt to according to the requirement of the different torques of servomotor.
As preferably, magnet steel comprises location magnetic shoe and common magnetic shoe, and the quantity of location magnetic shoe is a, and the quantity of common magnetic shoe is b, then a+b=Z.A spot of magnet steel is made the location magnetic shoe, and a large amount of magnet steel is made common magnetic shoe, the position relative fixed of each magnet steel and rotor core can be able to be reduced manufacturing cost again.
As preferably, to locate magnetic shoe and be arcuation, the internal diameter of location magnetic shoe equates with the external diameter of rotor core; The inner surface of location magnetic shoe is provided with positioning boss, and the rotor core outer surface is provided with size and the identical groove of positioning boss.Detent is set on rotor core, and the magnetic shoe inner surface is provided with positioning boss in the location, when the location magnetic shoe covers the rotor core periphery, positioning boss snaps in groove, thereby the relative position of magnet steel and rotor core is fixed, have simple in structure, the advantage that cost of manufacture is low.
As preferably, common magnetic shoe is arcuation, and the internal diameter of common magnetic shoe equates with the external diameter of rotor core.Common magnetic shoe is simple in structure, after location magnetic shoe and rotor core fix, as long as with common magnetic shoe successively near covering outside the rotor core, just all magnet steel can be located, have simple in structure, advantage of low manufacturing cost.
As preferably, rotor core axially have some through holes spaced apart.Rotor core axially open the inertia that the hole can reduce rotor core, improve the control precision of servomotor, reduce the consumption of silicon steel simultaneously, reduce cost.
As preferably, be enclosed with stainless steel sleeve on the outer circumference of magnet steel.After magnet steel wraps whole rotor core, with stainless steel sleeve magnet steel is wrapped again, when rotor high-speed rotates, move, have advantage of low manufacturing cost simple in structure to prevent magnet steel.
The beneficial effects of the utility model are: the Nd-Fe-Bo permanent magnet material of costliness is fitted in outside the rotor core, guaranteed that all Nd-Fe-Bo permanent magnet materials give full play to its excellent performance, reduce the consumption of Nd-Fe-Bo permanent magnet material, reduced the manufacturing cost of servomotor, and simple in structure.
Description of drawings
Fig. 1 is a kind of cross-sectional view of the utility model servo motor rotor module;
Fig. 2 is a kind of structural representation of location magnetic shoe;
Fig. 3 is the upward view of Fig. 2;
Fig. 4 is a kind of structural representation of common magnetic shoe;
Fig. 5 is the upward view of Fig. 4.
Among the figure: 1. rotor core, 2. location magnetic shoe, 3. common magnetic shoe, 4. stainless steel sleeve, 5. boss.
Embodiment
Below by specific embodiment, and in conjunction with the accompanying drawings the technical solution of the utility model is described in further detail.
Embodiment:
A kind of servo motor rotor module of present embodiment, referring to Fig. 1, comprise the rotor core 1 that is overrided to form by the silicon steel punching, be wrapped in the magnet steel that the Nd-Fe-Bo permanent magnet material on rotor core 1 circumference is made, magnet steel is divided into 3 two kinds of location magnetic shoe 2 and common magnetic shoes, the sum of two kinds of magnetic shoes must be a positive even numbers, in the present embodiment, 2, seven blocks of common magnetic shoes 3 of a location magnetic shoe are arranged; To locate magnetic shoe 2 with stainless steel sleeve 4 again and common magnetic shoe 3 wraps.
On rotor core 1, have through hole spaced apart.
Referring to Fig. 2, Fig. 3, the cross section of location magnetic shoe 2 is curved, and side surface is provided with positioning boss 5 within it.
Referring to Fig. 4, Fig. 5, the cross section of common magnetic shoe 3 is also curved.
The silicon steel punching is laminated into rotor core 1, will locate boss 5 on the magnetic shoe 2 earlier and be pressed in the groove on the rotor core 1, location magnetic shoe 2 compresses with rotor core 1; Seven blocks of common magnetic shoes 3 are compressed with rotor core 1 successively, again stainless steel sleeve 4 is enclosed within location magnetic shoe 2 and common magnetic shoe 3 outsides, promptly finished a servo motor rotor module, servo motor rotor module string dress that can be as required that one or a few is such is installed on the servomotor main shaft.
Above embodiment is one of preferred plan of the present utility model, is not that the utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.
Claims (7)
1. servo motor rotor module, comprise the rotor core that is overrided to form by the silicon steel punching, it is characterized in that: be enclosed with the magnet steel that at least two Nd-Fe-Bo permanent magnet materials are made on the circumference of described rotor core, the quantity Z of described magnet steel is a positive even numbers, and according to the pole polarity sequence arrangement of N-S-N.
2. a kind of servo motor rotor module according to claim 1 is characterized in that: described magnet steel comprises location magnetic shoe and common magnetic shoe, and the quantity of described location magnetic shoe is a, and the quantity of described common magnetic shoe is b, then a+b=Z.
3. a kind of servo motor rotor module according to claim 2 is characterized in that: described location magnetic shoe is arcuation, and the internal diameter of described location magnetic shoe equates with the external diameter of described rotor core; The inner surface of described location magnetic shoe is provided with positioning boss, and described rotor core outer surface is provided with size and the identical groove of described positioning boss.
4. a kind of servo motor rotor module according to claim 2 is characterized in that: described common magnetic shoe is arcuation, and the internal diameter of described common magnetic shoe equates with the external diameter of described rotor core.
5. according to claim 1 or 2 or 3 or 4 described a kind of servo motor rotor modules, it is characterized in that: described rotor core axially have some through holes spaced apart.
6. according to claim 1 or 2 or 3 or 4 described a kind of servo motor rotor modules, it is characterized in that: be enclosed with stainless steel sleeve on the outer circumference of described magnet steel.
7. a kind of servo motor rotor module according to claim 5 is characterized in that: be enclosed with stainless steel sleeve on the outer circumference of described magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206001768U CN201846156U (en) | 2010-11-10 | 2010-11-10 | Rotor module of servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206001768U CN201846156U (en) | 2010-11-10 | 2010-11-10 | Rotor module of servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201846156U true CN201846156U (en) | 2011-05-25 |
Family
ID=44041032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206001768U Ceased CN201846156U (en) | 2010-11-10 | 2010-11-10 | Rotor module of servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201846156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296807A (en) * | 2013-06-07 | 2013-09-11 | 芜湖微特电机有限公司 | Servo motor rotor assembly |
| CN114977571A (en) * | 2022-05-31 | 2022-08-30 | 中国石油大学(华东) | Surface-mounted permanent magnet positioning structure of permanent magnet synchronous motor |
-
2010
- 2010-11-10 CN CN2010206001768U patent/CN201846156U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296807A (en) * | 2013-06-07 | 2013-09-11 | 芜湖微特电机有限公司 | Servo motor rotor assembly |
| CN114977571A (en) * | 2022-05-31 | 2022-08-30 | 中国石油大学(华东) | Surface-mounted permanent magnet positioning structure of permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20170628 Decision number of declaring invalidation: 32595 Granted publication date: 20110525 |