Supporting device for motor stator modal testing

By combining the base, bearings, and support components, the stable suspension and attitude adjustment of the motor stator are achieved, solving the problem of inaccurate stator test results, improving the accuracy and consistency of testing, and reducing costs.

CN224317646UActive Publication Date: 2026-06-02HEFEI JUYI POWER SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI JUYI POWER SYST CO LTD
Filing Date
2025-05-22
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing technologies make it difficult to ensure consistent suspension conditions for motor stators, leading to inaccurate test results. Furthermore, they fail to meet the requirement that the modal frequencies of the tested object and the tooling differ by more than 20 times, affecting the accuracy and consistency of the test results.

Method used

The device employs a combination of base, bearing, and support components. The support components contact the inner wall of the stator, and the support components can extend and retract to change the stator's posture. The outer ring of the bearing rotates relative to the inner ring, causing the stator to rotate around a fixed axis, thus achieving stable suspension and posture adjustment.

Benefits of technology

It improves the accuracy and consistency of stator modal testing, reduces the interference of support structure on measurement results, adapts to various stator sizes, reduces costs, and improves the robustness of the device.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224317646U_ABST
    Figure CN224317646U_ABST
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Abstract

The utility model relates to stator test technical field discloses a kind of support device of motor stator modal test, including the erection on support of the both ends of fixed shaft separable, bearing sleeve is set on fixed shaft, and the inner ring of bearing is fixedly connected with fixed shaft, support piece annular interval is located on the outer ring of bearing, the end of support piece deviating from the outer ring of bearing is telescopic, to make it resist pressure on the inner wall surface of stator to be measured, the utility model is lifted to certain height by pedestal to stator, by the inner wall surface of stator to be measured of support piece and abut, make it be in the state of suspension, and can reduce contact area, by driving stator, the outer ring of bearing rotates relative to inner ring, to make stator can rotate around the axis of fixed shaft, to change the preset posture of stator to be measured, adapt to the needs of modal test, improve the consistency of stator modal test, robustness is strong, and can be used for a long time.
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