CN201226483Y - Rotor structure for high-power variable-frequency control three-phase asynchronous motor - Google Patents
Rotor structure for high-power variable-frequency control three-phase asynchronous motor Download PDFInfo
- Publication number
- CN201226483Y CN201226483Y CNU2008200749477U CN200820074947U CN201226483Y CN 201226483 Y CN201226483 Y CN 201226483Y CN U2008200749477 U CNU2008200749477 U CN U2008200749477U CN 200820074947 U CN200820074947 U CN 200820074947U CN 201226483 Y CN201226483 Y CN 201226483Y
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- rotor
- motor shaft
- phase asynchronous
- asynchronous motor
- iron
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Abstract
The utility model relates to a high-power frequency control three-phase asynchronous motor rotor structure, which comprises a motor shaft, a rotor arranged on the motor shaft through keys, a rotor iron core and a rotor sheet which constitute the rotor. The high-power frequency control three-phase asynchronous motor rotor structure is characterized in that the trough-shaped humeral angle of the rotor iron core is manufactured to be 0 to 15 degrees; a plurality of iron frames are fixed on the external circumferential wall of the motor shaft; the external circumference of the iron frames form one round circumferential face; the rotor is enclosed on the circumferential face formed by the iron frames. An axial duct is formed between the rotor iron core, the motor shaft and the iron frames. A rotor end ring is arranged on the rotor core, and leaf blades are enclosed on the outer end of the rotor end ring. Accordingly, the structure not only improves the overload capacity of the three-phase asynchronous motor and enlarges the frequency conversion range, but also improves the cooling effect. In this way, the service life of the three-phase asynchronous motor is prolonged. In addition, the high-power frequency control three-phase asynchronous motor rotor structure has the advantages of simple structure, reasonable design, easy manufacture and the like.
Description
Technical field
The utility model belongs to threephase asynchronous manufacturing technology field, particularly relates to a kind of high-power frequency conversion speed governing threephase asynchronous rotor structure.
Background technology
At present, along with improving constantly that the power frequency speed control system of high motor product requires, the rotor structure is a key component in threephase asynchronous manufacturing technology field, existing common frequency control threephase asynchronous rotor structure mainly is: rotor punching adopts the vat fillet flute profile of remaining silent, this flute profile groove leakage reactance is relatively large, so the tuning range of high-power frequency conversion speed governing threephase asynchronous is less, overload capacity is less; Rotor punching directly is installed on the solid motor axle after being superimposed as iron core in addition, end ring only is installed on the rotor core, is not had blade on the end ring, do not have the axial ventilation duct on the whole rotor, cause whole motor cooling weak effect, finally influence the useful life of generator.
Summary of the invention
The utility model provides a kind of raising threephase asynchronous overload capacity, frequency conversion scope big for solving the technical problem that exists in the known technology, and the good high-power frequency conversion speed governing threephase asynchronous rotor structure of cooling effect.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of high-power frequency conversion speed governing threephase asynchronous rotor structure, comprise motor shaft, be installed in rotor on the motor shaft by key, and rotor core and the rotor punching of forming rotor, it is characterized in that: the groove fillet of described rotor punching flute profile is made as 0～15 °, install several iron width of cloth on the outer circle wall of described motor shaft, the excircle of described several iron width of cloth forms a periphery, rotor bushing on several iron formed periphery, described rotor and the motor shaft that is formed by stacking by rotor core and rotor punching, form axial ducts between the iron width of cloth, on the described rotor rotor end ring is installed, the rotor end ring outer end is set with blade.
The utility model can also adopt following technical measures:
Install 4-6 the iron width of cloth on the described motor shaft excircle.
Advantage and the good effect that the utlity model has are: the utility model is for the frequency control scope that enlarges threephase asynchronous and improve overload capacity, and the groove fillet of rotor punching flute profile is made as 0～15 °; Install several iron width of cloth on the outer circle wall of motor shaft, rotor bushing on several iron formed outer circumference surface, form axial ducts between described rotor and motor shaft, the iron width of cloth, this air channel is the circulation cooling air channel in the stator side air channel constitutes, rotor end ring is installed on rotor in addition, the rotor end ring outer end is set with blade, has effectively reduced windage like this, has guaranteed the axial ventilation effect.Therefore said structure not only improves threephase asynchronous overload capacity, enlarge the frequency conversion scope, and improved cooling effect, and having prolonged the useful life of threephase asynchronous like this, the utility model also has advantages such as simple in structure, reasonable in design, easily manufactured in addition.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the utility model rotor punching structural representation;
Fig. 4 is a rotor punching bathtub construction schematic diagram.
Among the figure: 1, rotor, 1-1, rotor core; 1-2, rotor punching; 2, rotor end ring; 3, motor shaft; 4, the iron width of cloth; 5, axial ducts; 6, blade; 7, key.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 to Fig. 4, high-power frequency conversion speed governing threephase asynchronous rotor structure, comprise motor shaft 3, be installed in rotor 1 on the motor shaft 3 by key 7, rotor is formed by stacking by rotor core 1-1 and rotor punching 1-2, for enlarging the frequency control scope of threephase asynchronous, improve overload capacity, the groove fillet α of rotor punching flute profile is made as 0～15 °, groove fillet α of the present utility model adopts 15 °; Install several iron 4 on the outer circle wall of motor shaft 3, the utility model adopts 6 iron width of cloth, rotor bushing 1 on 6 iron formed outer circumference surfaces, form axial ducts 5 between described rotor 1 and motor shaft 3, the iron 4, these axial ducts 5 are the circulation cooling air channel in the stator side air channel constitutes; Rotor end ring 2 is installed on rotor 1 in addition, and rotor end ring 2 outer ends are set with blade 6, have effectively reduced windage like this, have guaranteed the axial ventilation effect.Therefore said structure not only improves threephase asynchronous overload capacity, enlarge the frequency conversion scope, and improved cooling effect, and having prolonged the useful life of threephase asynchronous so greatly, the utility model also has system simple in structure, reasonable in design, makes advantages such as convenient in addition.
Claims (2)
1. high-power frequency conversion speed governing threephase asynchronous rotor structure, comprise motor shaft, be installed in rotor on the motor shaft by key, and rotor core and the rotor punching of forming rotor, it is characterized in that: the groove fillet of described rotor punching flute profile is made as 0～15 °, install several iron width of cloth on the outer circle wall of described motor shaft, the excircle of described several iron width of cloth forms a periphery, rotor bushing on several iron formed periphery, described rotor and the motor shaft that is formed by stacking by rotor core and rotor punching, form axial ducts between the iron width of cloth, on the described rotor rotor end ring is installed, the rotor end ring outer end is set with blade.
2. high-power frequency conversion speed governing threephase asynchronous rotor structure according to claim 1 is characterized in that: install 4-6 the iron width of cloth on the described motor shaft excircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200749477U CN201226483Y (en) | 2008-06-04 | 2008-06-04 | Rotor structure for high-power variable-frequency control three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200749477U CN201226483Y (en) | 2008-06-04 | 2008-06-04 | Rotor structure for high-power variable-frequency control three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226483Y true CN201226483Y (en) | 2009-04-22 |
Family
ID=40599386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200749477U Expired - Fee Related CN201226483Y (en) | 2008-06-04 | 2008-06-04 | Rotor structure for high-power variable-frequency control three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201226483Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036381A (en) * | 2012-12-04 | 2013-04-10 | 江苏航天动力机电有限公司 | End link structure with cooling fins and fan blades integrated |
| CN104917314A (en) * | 2015-06-01 | 2015-09-16 | 中达电机股份有限公司 | AC asynchronous motor rotor without truning excircle |
| CN112713712A (en) * | 2020-12-14 | 2021-04-27 | 中车永济电机有限公司 | Direct drive motor of oil field winch |
| CN115313737A (en) * | 2022-08-26 | 2022-11-08 | 四川宏华电气有限责任公司 | Variable-frequency speed-regulating asynchronous motor for fracturing pump |
-
2008
- 2008-06-04 CN CNU2008200749477U patent/CN201226483Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036381A (en) * | 2012-12-04 | 2013-04-10 | 江苏航天动力机电有限公司 | End link structure with cooling fins and fan blades integrated |
| CN104917314A (en) * | 2015-06-01 | 2015-09-16 | 中达电机股份有限公司 | AC asynchronous motor rotor without truning excircle |
| CN112713712A (en) * | 2020-12-14 | 2021-04-27 | 中车永济电机有限公司 | Direct drive motor of oil field winch |
| CN115313737A (en) * | 2022-08-26 | 2022-11-08 | 四川宏华电气有限责任公司 | Variable-frequency speed-regulating asynchronous motor for fracturing pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20130604 |