Device for testing effects exerted on performance of motor iron core yoke part by interference fit

A technology of interference fit and iron core yoke, which is applied in the direction of measuring device, magnetic property measurement, magnetic variable measurement, etc., can solve the problems of lack of measuring device and difficulty in implementation, and achieve accurate test results, reduce eddy current loss, and high efficiency Effect

Pending Publication Date: 2017-03-29
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the test of the change of core magnetization and loss performance caused by interference fit processing, it is difficult to implement due to the lack of corresponding measuring devices

Method used

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  • Device for testing effects exerted on performance of motor iron core yoke part by interference fit
  • Device for testing effects exerted on performance of motor iron core yoke part by interference fit
  • Device for testing effects exerted on performance of motor iron core yoke part by interference fit

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention will be further described:

[0027] Such as Figure 1-Figure 4 As shown, the present invention proposes a device for testing the influence of interference fit on the performance of the motor core yoke, the device is mainly composed of a fixed ring 1, two coil rings 2, and an adjustment ring 3; one end of the fixed ring 1 is connected to a One end of the coil ring 2 is unidirectionally connected through a dovetail groove, the other end of the coil ring 2 is connected to one end of the adjustment ring 3 through a dovetail groove, and the other end of the adjustment ring 3 is connected to one end of another coil ring 2 through a dovetail groove One-way connection, the other end of the other coil ring 2 is one-way connected with the other end of the fixed ring 1 through a dovetail groove; the adjustment ring 3 has an opening, and the opening part is fixedly connected by an adjustable locking mechanism. T...

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Abstract

The invention belongs to the technical field of electric motors and relates to a device for testing effects exerted on performance of a motor iron core yoke part by an interference fit. The device comprises clamping tool formed by a fixed ring, a wire coil ring and an adjustment ring. The clamping tool is used for simulating the interference fit, a stator iron core is embedded in the clamping tool, and a plurality of interference magnitudes can be obtained via adjustment of an opening size of the clamping tool. An experiment method is used for measuring magnetization and loss performance of the device, a rule of how different interference magnitudes affect the magnetization and loss performance of a stator iron core yoke part can be obtained, and a basis can be provided for reasonable selection of the interference magnitudes of different types of iron cores. The device disclosed in the invention is simple in structure and convenient in operation and suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of motors, and mainly relates to a device for testing the influence of interference fit on the performance of the iron core yoke of a motor, in particular to a device for measuring the influence of interference fit processing on the magnetization and loss performance of the iron core yoke of a motor. Background technique [0002] The connection mode of the radial flux motor stator core and the casing is usually an interference fit connection. [0003] The interference fit process introduces pressure into the yoke of the motor stator core, which changes the original performance of the core and deteriorates its magnetization and loss characteristics, especially when the motor stator core is made of thin electrical steel sheets, the degree of deterioration is particularly serious. [0004] After interference fit processing, the magnetic permeability of the stator core yoke of the motor decreases, the loss densi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/12
CPCG01R33/1215G01R33/123
Inventor 佟文明朱龙飞韩雪岩贾建国王世伟唐任远
Owner SHENYANG POLYTECHNIC UNIV
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