CN201860186U - End ring structure of squirrel-cage type motor rotor - Google Patents
End ring structure of squirrel-cage type motor rotor Download PDFInfo
- Publication number
- CN201860186U CN201860186U CN2010205647797U CN201020564779U CN201860186U CN 201860186 U CN201860186 U CN 201860186U CN 2010205647797 U CN2010205647797 U CN 2010205647797U CN 201020564779 U CN201020564779 U CN 201020564779U CN 201860186 U CN201860186 U CN 201860186U
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- end ring
- squirrel
- motor rotor
- ring structure
- rotor
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- Expired - Fee Related
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Abstract
The utility model relates to an end ring structure of a squirrel-cage type motor rotor, comprising an end ring, a rotor core mounted on a shaft, and conducting bars mounted in each axial groove of the rotor core, wherein the end ring is fixedly connected to the radial inner sides of two ends of each conducting bar. In the end ring structure of the squirrel-cage type motor rotor, the end ring is put at the radial inner sides of two ends of each conducting bar, not only can the breaking of the conducting bars caused by a large centrifugal force when the motor is in high speed rotation be avoided so as to achieve the purpose of protecting the conducting bars, but also the end ring structure can play the role of a fan and is beneficial to cooling the motor rotor; and the end ring adopts a complete circle structure and does not need the processing of grooves, so that the end ring structure of the squirrel-cage type motor rotor is material-saving, and has simple structure and process and low cost.
Description
Technical field
The utility model relates to the rotor core of squirrel-cage motor, is specifically related to a kind of end ring structure that is mainly used in large and medium-sized three-phase squirrel-cage asynchronous motor rotor core.
Background technology
The squirrel-cage induction machine is simple in structure, easily manufactured, is a kind of economy, durable motor, uses extremely wide.Small-sized squirrel-cage motor is generally all used cast-aluminum rotor; And for large and medium-sized squirrel-cage motor, because the cast aluminium quality is difficult for assurance, thus adopt copper bar to insert in the groove of rotor core, the structure of the end ring of burn-oning at two ends again.
General large and medium-sized squirrel-cage motor is placed sliver and uniform in the rotor core groove, end ring processes groove one, sliver is stretched out in the groove that the outer part of groove is placed on end ring weld.This end end ring structure long processing time, technological requirement complexity, waste scolder, cost height.
Summary of the invention
The utility model is at the problems referred to above, and a kind of end ring structure of novel squirrel-cage motor rotor is provided, and this end ring structure can satisfy its performance requirement, makes easily again, and cost is low.
The technical solution of the utility model is as follows: a kind of end ring structure of squirrel-cage motor rotor, comprise end ring, be installed in the rotor core on the axle and be installed in sliver in each axial groove of rotor core, described end ring is fixedly connected on the radially inner side at described sliver two ends.
Described end ring is a completely circular structure.
The axial outside of described end ring grows the two ends of described sliver.
The excircle of described end ring is welded to connect with the two ends of silver solder and described sliver.
The axial two ends of described rotor core are fixedly connected with rotor pressing ring.
Be fixedly connected with balance weight on the described rotor pressing ring.
Useful technique effect of the present utility model is: the utility model is placed on end ring the radially inner side at sliver two ends, can avoid the pot motor sliver that when centrifugal force is big, fractures, reach the effect of protection sliver, can play the effect of fan again, very big benefit is arranged for the cooling motor rotor; In addition, end ring adopts completely circular structure, need not machined grooves, can save material, and simple in structure, processing technology is simple, and cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the end ring in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Among Fig. 1, Fig. 2, comprise end ring 1, silver solder 2, sliver 3, axle 4, rotor core 5, hex bolts 6, hex nut 7, balance weight 8, arc key 9, rotor pressing ring 10 etc.
As shown in Figure 1 and Figure 2, the utility model is a kind of end ring structure of squirrel-cage motor rotor, comprise end ring 1, be installed in axle on 4 rotor core 5 and be installed in sliver 3 in each equally distributed axial groove of rotor core 5.The axial two ends of rotor core 5 are fixedly connected with rotor pressing ring 10, and an end of rotor core 5 is by the shaft shoulder on the axle 4 location, and the other end is filled in the keyway on the axle 4 by arc key 9 and located.During the rotor dynamic balancing experiment, in the light of actual conditions, balance weight 8 usefulness hex boltss 6 and hex nut 7 are fixed on the rotor pressing ring 10 at rotor core 5 two ends, guarantee balance.
End ring 1 of the present utility model is a completely circular structure, is positioned at the radially inner side at sliver 3 two ends, with silver solder 2 excircle of end ring 1 and the two ends of sliver 3 is welded.
The axial outside of end ring 1 grows the monolateral 2.5mm in two ends of sliver 3, so that welding.
Installation process of the present utility model is as follows: at first pass through hot cover process, rotor core 5 is heated to 220 ℃ and keep constant temperature 3h, be inserted in axle 4 then, and fill in the keyway of axle on 4 with arc key 9, fixed rotor iron core 5, again sliver 3 is injected in the rotor core 5 successively, end ring 1 is placed on the interior location that sliver 3 stretches out groove outer end part, weld with sliver 3 usefulness silver solders 2.
The utility model is placed on the radially inner side at sliver two ends with end ring 1, can avoid the pot motor sliver 3 that fractures when centrifugal force is big, reaches the effect of protection sliver 3, can play the effect of fan again, for the cooling motor rotor very big benefit is arranged; In addition, end ring 1 adopts completely circular structure, need not machined grooves, can save material, and simple in structure, processing technology is simple, and cost is low.
Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from spirit of the present utility model and design, all should think to be included within the protection range of the present utility model.
Claims (6)
1. the end ring structure of a squirrel-cage motor rotor, comprise end ring (1), be installed in axle on (4) rotor core (5) and be installed in sliver (3) in each axial groove of rotor core (5), it is characterized in that: described end ring (1) is fixedly connected on the radially inner side at described sliver (3) two ends.
2. the end ring structure of squirrel-cage motor rotor according to claim 1 is characterized in that: described end ring (1) is a completely circular structure.
3. the end ring structure of squirrel-cage motor rotor according to claim 1 and 2 is characterized in that: the axial outside of described end ring (1) grows the two ends of described sliver (3).
4. the end ring structure of squirrel-cage motor rotor according to claim 1 is characterized in that: the excircle of described end ring (1) is welded to connect with the two ends of silver solder (2) with described sliver (3).
5. the end ring structure of squirrel-cage motor rotor according to claim 1 is characterized in that: the axial two ends of described rotor core (5) are fixedly connected with rotor pressing ring (10).
6. the end ring structure of squirrel-cage motor rotor according to claim 5 is characterized in that: be fixedly connected with balance weight (8) on the described rotor pressing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205647797U CN201860186U (en) | 2010-10-15 | 2010-10-15 | End ring structure of squirrel-cage type motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205647797U CN201860186U (en) | 2010-10-15 | 2010-10-15 | End ring structure of squirrel-cage type motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860186U true CN201860186U (en) | 2011-06-08 |
Family
ID=44105985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205647797U Expired - Fee Related CN201860186U (en) | 2010-10-15 | 2010-10-15 | End ring structure of squirrel-cage type motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860186U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951043A (en) * | 2010-10-15 | 2011-01-19 | 无锡哈电电机有限公司 | End ring structure of squirrel cage rotor |
| CN104779726A (en) * | 2015-05-06 | 2015-07-15 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor and rotor thereof |
-
2010
- 2010-10-15 CN CN2010205647797U patent/CN201860186U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951043A (en) * | 2010-10-15 | 2011-01-19 | 无锡哈电电机有限公司 | End ring structure of squirrel cage rotor |
| CN104779726A (en) * | 2015-05-06 | 2015-07-15 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor and rotor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUXI SEC ELECTRIC MACHINERY CO., LTD. Free format text: FORMER NAME: WUXI HEC ELECTRIC MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214131, No. 2, Da Tong Road, Hua Zhen Town, Binhu District, Jiangsu, Wuxi Patentee after: Wuxi Zhong Dian Motor Co.,Ltd. Address before: 214131, No. 2, Da Tong Road, Hua Zhen Town, Binhu District, Jiangsu, Wuxi Patentee before: SEC Electric Machinery Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 214131, No. 777 Gao Lang Dong Road, Binhu District, Jiangsu, Wuxi Patentee after: Sec Electric Machinery Co.,Ltd. Address before: 214131, No. 2, Da Tong Road, Hua Zhen Town, Binhu District, Jiangsu, Wuxi Patentee before: Wuxi Zhong Dian Motor Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |