CN202749979U - Internal-rotor assembling structure for end-face dislocation of permanent magnetic motor - Google Patents
Internal-rotor assembling structure for end-face dislocation of permanent magnetic motor Download PDFInfo
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- CN202749979U CN202749979U CN 201220407158 CN201220407158U CN202749979U CN 202749979 U CN202749979 U CN 202749979U CN 201220407158 CN201220407158 CN 201220407158 CN 201220407158 U CN201220407158 U CN 201220407158U CN 202749979 U CN202749979 U CN 202749979U
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Abstract
The utility model relates to an internal-rotor assembling structure for end-face dislocation of a permanent magnetic motor and can solve a problem that coaxiality of circularity of an external diameter size of a permanent magnet and a rotor iron-core bore after adhibited can't be satisfied. The key points of the technical scheme are that the internal-rotor assembling structure comprises a mandrel, a base and a positioning base. A front surface of the base is provided with a clamping groove. The positioning base is clamped in the clamping groove of the base. The mandrel is flexibly connected with the base. An inner wall of the positioning base is cylindrical and is provided with a plurality of sets of internal-rotor magnetic-steel clamping grooves which is uniformly mounted in an opposite manner and is used for filling with magnetic steel. Outer fixing grooves are disposed on the positioning base corresponding to every internal-rotor magnetic-steel clamping groove. External magnetic bodies or coils are filled in the outer fixing grooves. A glue storage groove is arranged on the front surface of the base opposite to an inner wall of the internal-rotor magnetic steel. The assembling structure overcomes problems of size tolerance and geometric tolerance after assembly is finished because thickness of the permanent magnet is nonuniform, thereby satisfying requirements of high precision motors.
Description
Technical field
The utility model relates to a kind of motor assembling structure, particularly a kind of magneto end surface dislocation internal rotor assembly structure.
Background technology
, power density energy-efficient owing to permagnetic synchronous motor and torque density is high is widely used.Trend when at present, the structure of magneto commonly used is passed air gap by magnetic flux is divided into radial flux column permanent-magnet motor and axial magnetic flux disc-type permanent magnet motor.And radial flux column permanent-magnet motor is by two kinds of external rotor and inner rotor cores.Most of radial flux column permanent-magnet design of electrical motor are inner rotor core, and in general, the rotor moment of inertia of inner rotor core is lower, are applicable to require quick acceleration and deceleration, expect that the higher situation of torque moment of inertia particularly usually adopts in the servomotor; Because the stator radiating condition is better, motor is easy for installation, and most of radial magnetic circuit design of electrical motor are inner-rotor-type.The stator structure of permagnetic synchronous motor is similar with asynchronous AC motor, manufacturing process is also similar, but both rotor structures are fully not identical, permanent-magnetic synchronous motor rotor embeds integrated magnet steel (rareearth magnetic material), the magnet steel manufacturing of this integral structure is not too convenient, when especially making high power permanent magnet synchronous motor, must use complicated frock.The permanent magnet that assembly technology originally just forms sintering is made the machining on the size, directly be assembled on the rotor core, can not satisfy the circularity that posts rear permanent magnet outside dimension and the axiality of rotor core endoporus, only guaranteed above-mentioned two conditions could realize uniform air-gap field, make electric machine rotation more steady.In addition, the integrated magnet steel of monoblock is easy to be held by rotor in filling in the rotor process, even might crash magnet steel.
China Patent Publication No. CN1588756A in open day on March 2nd, 2005, discloses a kind of magnet steel of permagnetic synchronous motor and the installation method of magnet steel thereof.A kind of magnet steel of permagnetic synchronous motor, magnet steel are multi-segment structure, and every section magnet steel connects by bond site.This technical scheme still has: permanent-magnetic synchronous motor rotor embeds integrated magnet steel (rareearth magnetic material), the magnet steel manufacturing of this integral structure is not too convenient, when especially making high power permanent magnet synchronous motor, must use complicated frock, can not satisfy the circularity that posts rear permanent magnet outside dimension and the axiality of rotor core endoporus, can't guarantee to realize uniform air-gap field, easily topic so that assemble make the jiggly problem of electric machine rotation.
The utility model content
The purpose of this utility model is to solve prior art can not satisfy the circularity that posts rear permanent magnet outside dimension and the axiality of rotor core endoporus, can't guarantee to realize uniform air-gap field, easily so that assemble make the jiggly problem of electric machine rotation, the magneto end surface dislocation internal rotor assembly structure of good concentricity and external diameter tolerance is provided after providing a kind of rotor core and magnetic permanent magnet to assemble.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of magneto end surface dislocation internal rotor assembly structure, be applicable to the internal rotor assembling of the magneto of magnet steel and iron core end surface dislocation, comprise mandrel, the front is provided with base and the positioning pedestal of draw-in groove, described positioning pedestal is connected in the draw-in groove of base, mandrel and described base are flexibly connected, the inwall of described positioning pedestal is cylindrical, being provided with some groups on the described inwall fills out and establishes the internal rotor magnet steel draw-in groove that mutual correspondence that magnet steel uses is evenly arranged, corresponding each internal rotor magnet steel draw-in groove all offers outer holddown groove on the described positioning pedestal, fill out in the described outer holddown groove to be provided with and add magnetic or coil, the corresponding internal rotor magnet steel of described base front surface inwall place is provided with storage glue groove.Utilize this assembling device to overcome the problem of the complete rear dimensional tolerance of the assembling that brings owing to permanent magnet is in uneven thickness and form and position tolerance, thereby satisfy the needs of high-precision motor, the setting of storage glue groove has guaranteed that also spreading glue can be not too much, has guaranteed that glue can enter storage glue groove preferably.
As preferably, described internal rotor magnet steel draw-in groove quantity is six or two integral multiple, and the corresponding center of circle angle number of arbitrary neighborhood internal rotor magnet steel draw-in groove all equates.
As preferably, the spacing between the outer holddown groove of arbitrary neighborhood all equates, all outer holddown grooves are also all equal with spacing between the corresponding internal rotor magnet steel draw-in groove.Arrange like this, guaranteed that externally-applied magnetic field can offset the intrinsic magnetic force of magnet steel preferably, the accuracy when guaranteeing to install, thus satisfy the needs of high-precision motor
As preferably, described magnet steel adds magnetic or coil is identical towards the polarity of positioning pedestal circle centre position towards the polarity of positioning pedestal circle centre position with described.Arrange like this, guaranteed that externally-applied magnetic field can offset the intrinsic magnetic force of magnet steel preferably, the accuracy when guaranteeing to install, thus satisfy the needs of high-precision motor
As preferably, the bottom land of the outer holddown groove on the corresponding positioning pedestal of described positioning base offers jogger hole, and described jogger hole is through hole.The setting of jogger hole can conveniently eject outer holddown groove with the magnetic that adds in the outer holddown groove, the convenient internal rotor that takes out.
As preferably, described storage glue groove is L-shaped, and the bottom land of described storage glue groove is positioned at the trench bottom of the draw-in groove of described base, and the height of described storage glue groove lateral wall is greater than the bottom land width of described storage glue groove.
As preferably, the end of the corresponding internal rotor magnet steel of described storage glue groove draw-in groove is provided with the chamfering of auxiliary storage glue.The setting of chamfering, the structural strength of both having strengthened storing up the glue groove has enlarged again the storage glue position of storing up the glue groove, can deposit into more overflowing glue.
As preferably, described base integral body is cylindrical, offers holddown groove on the described base, and holddown groove integral body is rounded, and the external diameter of the internal diameter of holddown groove and the internal rotor of magneto is complementary.Arrange like this, guaranteed that the internal rotor iron core can mate with holddown groove, can not occur moving, satisfy the needs of high-precision motor,
As preferably, described base center offers connecting hole, and described mandrel and described base are bolted.Arrange like this, guaranteed that the utility model can adapt to the internal rotor of different model.
Substantial effect of the present utility model is: the interference in magnetic field when the utility model has adopted the mode of externally-applied magnetic field when the assembling magnet steel to solve alinco assembled, overcome the problem of the complete rear dimensional tolerance of the assembling that brings owing to permanent magnet is in uneven thickness and form and position tolerance, thereby satisfy the needs of high-precision motor.
Description of drawings
Fig. 1 is a kind of structural representation of facing of positioning pedestal in the utility model;
Fig. 2 is a kind of planing surface structural representation of B-B in the utility model.
Among the figure: 1, base, 2, positioning pedestal, 3, internal rotor magnet steel draw-in groove, 4, outer holddown groove, 5, the internal rotor iron core, 6, mandrel, 7, storage glue groove, 8, coating area, 9, jogger hole, 10, connecting hole.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
A kind of magneto end surface dislocation internal rotor assembly structure (referring to accompanying drawing 2), be applicable to the internal rotor assembling of the magneto of magnet steel and iron core end surface dislocation, comprise mandrel 6, the front is provided with base 1 and the positioning pedestal 2 of draw-in groove, positioning pedestal 2 is connected in the draw-in groove of base 1, the inwall of positioning pedestal 2 is cylindrical, be provided with on the inwall of positioning pedestal 2 three groups fill out establish internal rotor magnet steel draw-in groove 3(that mutual correspondence that magnet steel uses evenly arranges referring to accompanying drawing 1), corresponding each internal rotor magnet steel draw-in groove 3 all offers outer holddown groove 4 on the positioning pedestal 2, fill out to be provided with in the outer holddown groove 4 and add magnetic, the corresponding internal rotor magnet steel of base 2 front surfaces inwall place is provided with storage glue groove 7.Internal rotor magnet steel draw-in groove 3 quantity are six, and the spacing between the outer holddown groove 4 of arbitrary neighborhood all equates, all outer holddown grooves 4 are also all equal with spacing between the corresponding internal rotor magnet steel draw-in groove 3.Magnet steel towards the polarity of positioning pedestal 2 circle centre positions with to add magnetic identical towards the polarity of positioning pedestal 2 circle centre positions.The bottom land of the outer holddown groove 4 on the base 1 corresponding positioning pedestal 2 offers jogger hole 9, and jogger hole 9 is through hole.Magnet steel is provided with figure glue-line 8 towards positioning pedestal 2 center of circle sides, and each figure glue-line 8 is corresponding storage glue groove 7 all, and storage glue groove 7 is L-shaped, and the bottom land of storage glue groove 7 is positioned at the trench bottom of the draw-in groove of base 1, and the height of storage glue groove 7 lateral walls is greater than the bottom land width of storage glue groove 7.The end of storage glue groove 7 corresponding internal rotor magnet steel draw-in grooves 3 is provided with the chamfering of auxiliary storage glue.Base 1 is whole cylindrical, offers holddown groove on the base 1, and holddown groove integral body is rounded, and the external diameter of the internal rotor iron core 5 of the internal diameter of holddown groove and magneto is complementary.Base 1 center offers connecting hole 10, and mandrel 6 is bolted with base 1.
When the present embodiment uses, at first, base and magneto mandrel that the non-magnetic material is made are screwed, and guarantee the axiality of base and mandrel, positioning pedestal is mounted on the base along the base internal diameter, the axiality that arranges like this when having guaranteed the rotor installation has a good guarantee again;
Then, insert in the outer holddown groove of the positioning pedestal that non-magnet material makes adding magnetic, utilize externally-applied magnetic field power that the magnet steel of internal rotor is fixed on the positioning pedestal;
Apply one deck glue at the internal rotor iron core again, rotor core imports base along mandrel; Rotor core contacts with the magnet steel inwall of internal rotor, glue evenly distributes at coating area, unnecessary glue overflows, flow into storage glue groove, the magnet steel inwall that has guaranteed internal rotor all has preferably with the internal rotor iron core and is connected, and after the internal rotor iron core arrives at the fixed position, the present embodiment is left standstill, glue begins to solidify, and magnet steel and the rotor core of internal rotor are bonding;
At last, after the present embodiment leaves standstill a period of time, confirm that glue has cured, the user utilizes push rod will add magnetic by jogger hole and ejects, and then positioning pedestal is taken out from base, and then takes out internal rotor.The internal rotor of this moment evenly has been fixed with magnet steel, and sound construction overcomes the problem of the complete rear dimensional tolerance of the assembling that brings owing to permanent magnet is in uneven thickness and form and position tolerance, thereby satisfies the needs of high-precision motor.
Above-described embodiment is a kind of better scheme 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 (9)
1. magneto end surface dislocation internal rotor assembly structure, be applicable to the internal rotor assembling of the magneto of magnet steel and iron core end surface dislocation, comprise mandrel, the front is provided with base and the positioning pedestal of draw-in groove, described positioning pedestal is connected in the draw-in groove of base, mandrel and described base are flexibly connected, the inwall of described positioning pedestal is cylindrical, it is characterized in that: be provided with some groups on the described inwall and fill out and establish the internal rotor magnet steel draw-in groove that mutual correspondence that magnet steel uses is evenly arranged, corresponding each internal rotor magnet steel draw-in groove all offers outer holddown groove on the described positioning pedestal, fill out in the described outer holddown groove to be provided with and add magnetic or coil, the corresponding internal rotor magnet steel of described base front surface inwall place is provided with storage glue groove.
2. magneto end surface dislocation internal rotor assembly structure according to claim 1 is characterized in that: described internal rotor magnet steel draw-in groove quantity is six or two integral multiple, and the corresponding center of circle angle number of arbitrary neighborhood internal rotor magnet steel draw-in groove all equates.
3. magneto end surface dislocation internal rotor assembly structure according to claim 1 is characterized in that: the spacing between the outer holddown groove of arbitrary neighborhood all equates, all outer holddown grooves are also all equal with spacing between the corresponding internal rotor magnet steel draw-in groove.
4. magneto end surface dislocation internal rotor assembly structure according to claim 1 is characterized in that: described magnet steel adds magnetic or coil is identical towards the polarity of positioning pedestal circle centre position towards the polarity of positioning pedestal circle centre position with described.
5. magneto end surface dislocation internal rotor assembly structure according to claim 1 is characterized in that: the bottom land of the outer holddown groove on the corresponding pedestal of described positioning base offers jogger hole, and described jogger hole is through hole.
6. magneto end surface dislocation internal rotor assembly structure according to claim 1, it is characterized in that: described storage glue groove is L-shaped, the bottom land of described storage glue groove is positioned at the trench bottom of the draw-in groove of described base, and the height of described storage glue groove lateral wall is greater than the bottom land width of described storage glue groove.
7. magneto end surface dislocation internal rotor assembly structure according to claim 1 is characterized in that: the end of the corresponding internal rotor magnet steel of described storage glue groove draw-in groove is provided with the chamfering of auxiliary storage glue.
8. magneto end surface dislocation internal rotor assembly structure according to claim 1, it is characterized in that: described base integral body is cylindrical, offer holddown groove on the described base, holddown groove integral body is rounded, and the external diameter of the internal diameter of holddown groove and the internal rotor of magneto is complementary.
9. magneto end surface dislocation internal rotor assembly structure according to claim 7, it is characterized in that: described base center offers connecting hole, and described mandrel and described base are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407158 CN202749979U (en) | 2012-08-17 | 2012-08-17 | Internal-rotor assembling structure for end-face dislocation of permanent magnetic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220407158 CN202749979U (en) | 2012-08-17 | 2012-08-17 | Internal-rotor assembling structure for end-face dislocation of permanent magnetic motor |
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| Publication Number | Publication Date |
|---|---|
| CN202749979U true CN202749979U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220407158 Expired - Lifetime CN202749979U (en) | 2012-08-17 | 2012-08-17 | Internal-rotor assembling structure for end-face dislocation of permanent magnetic motor |
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| CN (1) | CN202749979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329855A (en) * | 2016-10-18 | 2017-01-11 | 上海航天控制技术研究所 | Assembly tool of double-magnetic-steel rotor of large-torque flywheel and assembly method of assembly tool |
-
2012
- 2012-08-17 CN CN 201220407158 patent/CN202749979U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329855A (en) * | 2016-10-18 | 2017-01-11 | 上海航天控制技术研究所 | Assembly tool of double-magnetic-steel rotor of large-torque flywheel and assembly method of assembly tool |
| CN106329855B (en) * | 2016-10-18 | 2018-12-25 | 上海航天控制技术研究所 | A kind of assembly tooling and its assembly method of the double magnetic steel rotors of high-torque flywheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315000 No. 308, Xiaogang Anju Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Feishi Technology Co.,Ltd. Address before: 315800 No. 55, Putuo mountain road, Beilun District, Zhejiang, Ningbo Patentee before: Phase Motion Control Ningbo Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
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| CX01 | Expiry of patent term |