CN203537095U - Dismountable pole-hanging low-speed large-torque permanent-magnetic rotor structure - Google Patents
Dismountable pole-hanging low-speed large-torque permanent-magnetic rotor structure Download PDFInfo
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- CN203537095U CN203537095U CN201320584830.4U CN201320584830U CN203537095U CN 203537095 U CN203537095 U CN 203537095U CN 201320584830 U CN201320584830 U CN 201320584830U CN 203537095 U CN203537095 U CN 203537095U
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Abstract
The utility model discloses a dismountable pole-hanging low-speed large-torque permanent-magnetic rotor structure. The rotor structure comprises a rotor yoke of a circular ring shape, multiple keyways are uniformly arranged along the radial surface of the rotor yoke, T-shaped keys respectively placed in the keyways form multiple T tails at the surface of the rotor yoke, each T tail is hung with a sector rotor punching sheet, multiple permanent-magnet grooves are uniformly distributed in each sector rotor punching sheet, and permanent magnets are respectively embedded into the permanent-magnet grooves in the manner that N and S poles are arranged alternatively. According to the utility model, the structure of a common permanent-magnetic motor rotor is changed, the rotor structure of the utility model is formed by assembling the multiple sector rotor punching sheets, and an assembled magnetic pole structure can be independently mounted and dismounted to realize good and simple technology; and the production cost is not greatly increased with increase of the outer circle of the motor rotor, so that the production cost of the rotor punching sheets is greatly reduced, and enforcement of the rotor structure is simple and convenient.
Description
technical field
The utility model relates to motor technology field, particularly a kind of removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure.
Background technology
In recent years, along with permanent magnetic material performance improve constantly and perfect, particularly progressively reducing of the thermal stability of Nd-Fe-B permanent magnetic and the improvement of corrosion resistance and price and further developing of power electronic device, add the progressively ripe of magneto research and development experience, through wideling popularize and apply existing achievement in research, make magneto at aspects such as national defence, industrial and agricultural production and daily lifes, obtain application more and more widely.Because magneto adopts permanent magnet excitation, be easy to realize multipole, and within the scope of very wide load factor, can keep higher efficiency and power factor characteristic, there is the incomparable advantage of asynchronous machine, through development in recent years, low speed large torque moment permanent-magnet synchronous motor has been widely used in each industrial circles such as lathe, mine, oil field, metallurgy, chemical industry, electric power, lifting, elevator.
The rotor structure of current low speed large torque moment permanent-magnet synchronous motor, its magnetic structure mainly contains two kinds, and a kind of is surface-mount type magnetic structure, and permanent magnet is tile shape, is fixed on the outer surface of rotor core.The modes such as general employing permanent magnet middle part screw fastening or interpolar press strip are fastening are carried out fastening, and permanent magnet is most of outside exposed, and permanent magnet is very easy to be subject to external force or broken due to self-defect generation in production run process, causes motor operation troubles; Also have between permanent magnet outer surface and stator core inner circle and put the non-magnetic cylinder shielding, or be wound around and make protective layer without latitude glass tape, carbon fiber etc. at permanent magnet pole outer surface, with protection permanent magnet, but technique is comparatively complicated, continuous increase along with outer circle of motor rotor, its exploitativeness reduces especially greatly, and cost is higher; Because surface-mount type magnetic structure leakage field is less, make permanent magnet increased by armature reaction influence degree in addition, cause permanent magnet more easily under the strong demagnetizing current of high temperature, to produce demagnetization.Another kind is built-in magnetic line structure, be that permanent magnet embeds the complete rotor punching inside of closed assembly, for multipolar dynamo built-in tangential formula rotor magnetic circuit structural, adopt more, its structure and manufacturing process are all comparatively complicated, manufacturing cost is also higher, the magnetic leakage factor causing due to its architectural characteristic is larger, the stock utilization especially utilance of permanent magnet material is generally lower, if adopted, specially every magnetic measure, can cause again process costs to improve, along with the continuous increase of outer circle of motor rotor, its production cost also significantly increases.
Utility model content
The purpose of this utility model is to overcome existing above-mentioned deficiency in prior art, provides a kind of production cost low, implements removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure simply and easily.
In order to realize foregoing invention object, the technical solution adopted in the utility model is:
A kind of removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure, the rotor yoke that comprises annular, on described rotor yoke, radially surface uniform arranges some keyways, described in each, in keyway, place T shape key and form some T tails on described rotor yoke surface, described in each, on T tail, mounted segmental rotor punching, described in each, in segmental rotor punching, be evenly distributed with a plurality of permanent magnet trough, permanent magnet is alternately flush-mounted in described permanent magnet trough by N, the S utmost point.
Described keyway bottom surface offers screwed hole, on described T shape key, also offers screwed hole, by screw, through the screwed hole of the screwed hole on described T shape key and described keyway bottom surface, described T shape key is connected to the some T tails of described rotor yoke surface formation successively.
The T shape key that described T shape key is formed in one and is made, or assembled by the key of two different in width.
compared with prior art, the beneficial effects of the utility model:
The utility model is by changing the version of common permanent magnet machine rotor, assembled by some segmental rotor punchings, the independently detachable installation of assembled field structure, to realize good manufacturability, technique is simple, and along with the continuous increase of outer circle of motor rotor, its production cost can significantly not increase yet, significantly reduce the production cost of rotor punching, implement simple and convenient.
accompanying drawing explanation:
Fig. 1 is the integrally-built axial cutaway view of rotor structure of the present invention.
Being labeled as in accompanying drawing, 1-permanent magnet, the punching of 2-segmental rotor, 3-T shape key, 4-screw, 5-rotor yoke.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the utility model only limits to following embodiment, all technology realizing based on the utility model content all belong to scope of the present utility model.
Embodiment
As shown in Figure 1, a kind of removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure of the present embodiment, the rotor yoke 5 that comprises annular, on described rotor yoke 5, radially surface uniform arranges some keyways, described in each, in keyway, place T shape key 3 and form some T tails on described rotor yoke 5 surfaces, described in each, on T tail, mounted segmental rotor punching 2, be evenly distributed with a plurality of permanent magnet trough described in each in segmental rotor punching 2, permanent magnet 1 is alternately flush-mounted in described permanent magnet trough by N, the S utmost point.
Concrete, described keyway bottom surface offers screwed hole, on described T shape key 3, also offer screwed hole, by screw 4, through the screwed hole of the screwed hole on described T shape key 3 and described keyway bottom surface, described T shape key 3 is connected to the some T tails of described rotor yoke 5 surface formation successively.Segmental rotor punching 2 is provided with and suitable " protruding " shape structure being connected of described T tail.
The utility model is by changing the version of common permanent magnet machine rotor, assembled by some segmental rotor punchings 2, the independently detachable installation of assembled field structure, to realize good manufacturability, technique is simple, and along with the continuous increase of outer circle of motor rotor, its production cost can significantly not increase yet, significantly reduce the production cost of rotor punching, implement simple and convenient.Also can, by the design of magnetic shielding structure, under the prerequisite that guarantees lamination structure reliability, rationally control leakage field, to protect the reliable and stable operation of permanent magnet.
Preferably, the T shape key that described T shape key 3 is formed in one and is made, or assembled by the key of two different in width.Adopt the assembled motor rotor construction of some segmental rotor punchings 2, the wherein independently detachable installation of field structure, has good manufacturability, has significantly reduced the production cost of rotor punching.
The utility model has the advantages that and adopt the assembled rotor structure of some segmental rotor punchings, the independently detachable installation of field structure wherein, has good manufacturability, has significantly reduced the production cost of rotor punching; Permanent magnet is alternately flush-mounted in permanent magnet trough by N, the S utmost point, by the design of magnetic shielding structure, under the prerequisite that guarantees lamination structure reliability, can rationally control leakage field, has protected to a great extent the reliability service of permanent magnet.
By reference to the accompanying drawings embodiment of the present utility model is had been described in detail above, but the utility model is not restricted to above-mentioned execution mode, in the spirit and scope situation of claim that does not depart from the application, those skilled in the art can make various modifications or remodeling.
Claims (3)
1. a removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure, the rotor yoke that comprises annular, it is characterized in that, on described rotor yoke, radially surface uniform arranges some keyways, described in each, in keyway, place T shape key and form some T tails on described rotor yoke surface, described in each, on T tail, mounted segmental rotor punching, be evenly distributed with a plurality of permanent magnet trough described in each in segmental rotor punching, permanent magnet is alternately flush-mounted in described permanent magnet trough by N, the S utmost point.
2. removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure according to claim 1, it is characterized in that, described keyway bottom surface offers screwed hole, on described T shape key, also offer screwed hole, by screw, through the screwed hole of the screwed hole on described T shape key and described keyway bottom surface, described T shape key is connected to the some T tails of described rotor yoke surface formation successively.
3. removable extension utmost point formula low speed large torque moment permanent-magnet rotor structure according to claim 1, is characterized in that, the T shape key that described T shape key is formed in one and is made, or assembled by the key of two different in width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584830.4U CN203537095U (en) | 2013-09-23 | 2013-09-23 | Dismountable pole-hanging low-speed large-torque permanent-magnetic rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584830.4U CN203537095U (en) | 2013-09-23 | 2013-09-23 | Dismountable pole-hanging low-speed large-torque permanent-magnetic rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537095U true CN203537095U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320584830.4U Expired - Lifetime CN203537095U (en) | 2013-09-23 | 2013-09-23 | Dismountable pole-hanging low-speed large-torque permanent-magnetic rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539880A (en) * | 2018-04-27 | 2018-09-14 | 合肥工业大学 | It is a kind of that magneto is remanufactured based on mixing stator core and mixed rotor iron core |
-
2013
- 2013-09-23 CN CN201320584830.4U patent/CN203537095U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108539880A (en) * | 2018-04-27 | 2018-09-14 | 合肥工业大学 | It is a kind of that magneto is remanufactured based on mixing stator core and mixed rotor iron core |
| CN108539880B (en) * | 2018-04-27 | 2020-01-17 | 合肥工业大学 | Remanufactured permanent magnet motor based on mixed stator core and mixed rotor core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |