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Method for shrinkage fit of protective ring of 50kW ultrahigh-speed permanent magnetic generator rotor

A permanent magnet generator, ultra-high-speed technology, applied in the manufacture of the stator/rotor body, etc., can solve the problems of thin wall of the retaining ring, small heat capacity, easy cooling, and inability to heat fit, etc., and achieve the effect of meeting the requirements of the heat fit of the retaining ring

Inactive Publication Date: 2015-02-18
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

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a method for shrouding the shroud of the 50kW ultra-high-speed permanent magnet generator rotor, which solves the problem that the shroud is thin and has a small heat capacity, easy to cool, and cannot be shrunk.

Method used

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  • Method for shrinkage fit of protective ring of 50kW ultrahigh-speed permanent magnetic generator rotor
  • Method for shrinkage fit of protective ring of 50kW ultrahigh-speed permanent magnetic generator rotor
  • Method for shrinkage fit of protective ring of 50kW ultrahigh-speed permanent magnetic generator rotor

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation will be described in detail below in conjunction with the accompanying drawings:

[0023] Please refer to the figure, the rotor of the 50kW ultra-high speed permanent magnet generator includes a rotating shaft 11, a magnetic yoke 12 that is shrink-fitted on the outer circle of the rotating shaft 11, and a magnetic steel 13 installed on the outer circumferential surface of the magnetic yoke 12, and the retaining ring is circular. The cylindrical structure, the wall of the guard ring is thin, and the guard ring is sleeved on the outer circle of the magnetic steel 13 .

[0024] For an example of the invention, see Figure 2 to Figure 7 , a 50kW ultra-high-speed permanent magnet generator rotor retaining ring shrink-fit method, comprising the following steps:

[0025] S1, the step of processing the support plate: the support plate 2 ...

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Abstract

The invention discloses a method for shrinkage fit of a protective ring of a 50kW ultrahigh-speed permanent magnetic generator rotor. The method comprises the following steps: processing a supporting plate, setting the supporting plate, setting the protective ring, adjusting the coaxiality of a magnetic yoke and the protective ring, heating the protective ring and performing the shrinkage fit on the protective ring. According to the method disclosed by the invention, a track type electric heating blanket is used for heating the protective ring, and can be used for continuously heating for heat preservation during the shrinkage fit of the protective ring, so that the requirements of the shrinkage fit of the protective ring is satisfied.

Description

technical field [0001] The invention relates to a thermal sleeve technology, in particular to a method for a retaining ring thermal sleeve of a rotor of a 50kW ultra-high-speed permanent magnet generator. Background technique [0002] The rotor of the 50kW ultra-high speed permanent magnet generator includes a shaft, a yoke that is shrunk on the outer circle of the shaft, and a magnet installed on the outer circumference of the yoke. The guard ring is set on the outer circle of the magnet. The ring is mainly to overcome the centrifugal force generated by the magnet steel when the rotor rotates, and maintain the original position and state of the magnet steel. The inner circle of the retaining ring and the outer circle of the magnetic steel are interference fit, the interference is 0.45mm, and it is used to tighten the magnetic steel. The retaining ring is made of titanium alloy Tc4 material and has a round shape. Cylindrical, thin-walled structure, thermal expansion coeffic...

Claims

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Application Information

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IPC IPC(8): H02K15/03
Inventor 陈健康
Owner 上海电气集团上海电机厂有限公司
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