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Motor rotor cage and motor rotor

A technology for motors and rotor cages, applied in the direction of asynchronous induction motors, electrical components, electromechanical devices, etc., can solve the problems of reducing the mechanical strength of brass, fatigue fracture, low mechanical strength, etc., and achieve the effect of preventing cage bars from breaking and failing

Inactive Publication Date: 2016-04-13
PANGANG GRP ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although both copper and brass have good electrical conductivity, the mechanical strength of copper is low, and the mechanical strength of brass is higher than that of copper. However, when the welding temperature of brass reaches 200-600 ° C, the mechanical strength of brass will be seriously reduced. strength
In addition, both copper and brass cannot withstand large tensile forces, and are prone to fatigue fractures during use

Method used

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  • Motor rotor cage and motor rotor
  • Motor rotor cage and motor rotor
  • Motor rotor cage and motor rotor

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Embodiment Construction

[0024] Hereinafter, exemplary embodiments of the present invention will be described more fully with reference to the accompanying drawings. They may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the example embodiments to those skilled in the art.

[0025] Hereinafter, a motor rotor cage and a motor rotor including the motor rotor cage according to exemplary embodiments of the present invention will be described.

[0026] figure 1 is a perspective view of a motor rotor cage 10 according to an exemplary embodiment of the present invention. refer to figure 1 , The motor rotor cage bar 10 has a cylindrical shape as a whole. The motor rotor cage bar 10 is made of QSn7-0.2 tin phosphor bronze. In one embodiment, the motor rotor cage bar 10 is manufactured from QSn7-0.2 tin phosph...

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Abstract

The present invention provides a motor rotor cage bar and a motor rotor which comprises the motor rotor cage bar. The motor rotor cage bar is made of QSn7-0.2 phosphor bronze. The invention further provides a motor rotor which comprises the motor rotor cage bar. According to the motor rotor cage bar, cage bar breakage failure of the motor in the use process can be effectively prevented. The motor rotor can operate for 5-10 years, and breakage failure of the cage bar is prevented.

Description

technical field [0001] The invention relates to a motor rotor cage and a motor rotor including the motor rotor cage, more specifically, the invention relates to a motor rotor cage made of tin phosphor bronze and a motor including the motor rotor cage rotor. Background technique [0002] In actual production, the rotor cage bar of the motor often breaks, causing the equipment to shut down and stop production, seriously affecting normal production. Motors with broken rotor cage bars include double squirrel-cage motors widely used in industrial and mining enterprises, AC induction motors used in power plants, and other motors with cage bars installed. [0003] The welding and fracture of the motor rotor cage bars mainly occur during the starting process of the motor, and the stress on the cage bars exceeds the mechanical strength of the cage bars. The fracture stress of the cage bar mainly includes thermal stress, welding residual stress and alternating stress. Thermal stres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K3/02H02K17/16
Inventor 卢明辉马义健黎爱军
Owner PANGANG GRP ENG TECH
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