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Rotor of ultrahigh-speed asynchronous motor

An asynchronous motor, ultra-high-speed technology, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problems of expensive processing, complex processing of solid rotor structure, poor electrical performance, etc., to achieve low manufacturing cost, The effect of low structural complexity and excellent electrical performance

Inactive Publication Date: 2017-05-31
上海电气集团上海电机厂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solid rotor structure has the disadvantages of complex processing, expensive processing and poor electrical performance.

Method used

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  • Rotor of ultrahigh-speed asynchronous motor

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Embodiment Construction

[0016] In order to better understand the technical solution of the present invention, it will be described in detail below through specific embodiments in conjunction with the accompanying drawings:

[0017] see figure 1 , a rotor of an ultra-high-speed asynchronous motor of the present invention includes a rotating shaft 1 and an iron core 9 sleeved on the rotating shaft 1 .

[0018] The rotating shaft 1 is divided into a driving end 11 , a driving end connecting section 12 , an iron core connecting section 13 , a non-driving end connecting section 14 and a non-driving end 15 , which are connected in sequence. The iron core 9 is shrink-fitted in the middle of the iron core connection section 13 . The iron core 9 and the iron core connecting section 13 adopt a large interference fit in the radial direction, so that the connection strength is sufficient to overcome the centrifugal force generated by the rotor under high-speed rotation; the end of the iron core 9 close to the d...

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Abstract

The invention discloses a rotor of an ultrahigh-speed asynchronous motor. The rotor comprises a rotation shaft and an iron core, wherein the iron core sleeves the rotation shaft, the rotation shaft is divided into a driving end, a driving end connection segment, an iron core connection segment, a non-driving end connection segment and a non-driving end which are sequentially connected, the iron core thermally sleeves the middle part of the iron core connection segment, the iron core and the iron core connection segment are in large interference matching, a rotation shaft axial positioning piece is arranged on the iron core, and two first balancing discs and two second balancing discs are further arranged on the iron core. The rotor of the ultrahigh-speed asynchronous motor has the advantages of low structural complexity, short manufacturing cost and period and excellent electrical property, the disturbance of the rotor under a high rotational speed can be reduced, and the stability of a shaft system is improved.

Description

technical field [0001] The invention relates to a rotor of an ultra-high-speed asynchronous motor used in the field of motor manufacturing. Background technique [0002] The rotor structure of large-capacity ultra-high-speed asynchronous motor is the technical bottleneck of the development of this type of motor. The rotor structure is divided into solid rotor structure and punched rotor structure according to the capacity and speed range, and fully considering the power and speed limitations of asynchronous motors. . Due to the limited reliability and stability of the punched rotor structure in high-speed motion, it is often forced to abandon it in the design of the rotor structure of large-capacity ultra-high-speed asynchronous motors, and choose a solid rotor structure. However, the solid rotor structure has the disadvantages of complex processing, expensive processing, and poor electrical performance. Designing a rotor that can be applied to ultra-high-speed asynchronou...

Claims

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Application Information

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IPC IPC(8): H02K1/28
CPCH02K1/28
Inventor 贺春袁登攀沈静姜贵君
Owner 上海电气集团上海电机厂有限公司
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