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Test method capable of realizing vibration characteristics physical separation of stator and rotor

A technology of physical separation and rotor vibration, applied in vibration testing, testing of machine/structural components, measuring devices, etc., to achieve the effect of decoupling

Active Publication Date: 2013-01-23
上海中船重工船舶推进设备有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problem that the stator and the rotor cannot be separated in the vibration test of the motor, which leads to the data judgment accuracy, and proposes a test method for realizing the physical separation of the vibration characteristics of the stator and the rotor, which can conduct in-depth research on the electromagnetic excitation, mechanical excitation and vibration transmission characteristics of the motor. At the same time, it can complete the test of the influence of the eccentricity of the motor stator and rotor on the vibration of the motor

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  • Test method capable of realizing vibration characteristics physical separation of stator and rotor
  • Test method capable of realizing vibration characteristics physical separation of stator and rotor
  • Test method capable of realizing vibration characteristics physical separation of stator and rotor

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Embodiment Construction

[0022] The present invention uses the test motor to complete the physical separation test of the vibration characteristics of the stator and the rotor, such as figure 1 The schematic diagram of the structure of the motor without the transition sleeve is shown, mainly including the rotor 1, the stator 2, the transition sleeve 3, the front and rear bearing end covers 5, the stator base 7 and the rotor base 8. Both the front and rear bearing covers 5 and the stator 2 have mounting feet, the front and rear bearing covers 5 and the rotor 1 are installed on the rotor base 8, the stator 2 is installed on the stator base 7, and the initial state is that the front and rear bearing covers 5 and The stator 2 is connected by the transition sleeve 3 and the bolt 4. When the transition sleeve 3 is removed, the rotor 1 and the stator 2 are respectively fixed on different bases, thereby realizing the physical separation of the vibration of the rotor 1 and the stator 2.

[0023] The specific i...

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Abstract

The invention relates to a test method capable of realizing vibration characteristics physical separation of a stator and a rotor. A reduction sleeve is additionally arranged between a motor stator and an end cover fixed with a rotor base, after the reduction sleeve is detached, the vibration physical separation between the motor stator and the rotor can be realized, therefore, the decoupling between the stator and the rotor excitation can be realized, the electromagnetic excitation, the mechanical excitation and the vibration transmissibility of the motor can be obtained by arranging proper vibration acceleration sensor, and the test of the influence of the motor stator and rotor eccentricity on the motor vibration can be implemented. The method provides necessary original parameter and vibration and noise reduction measure for the analysis of motor vibration and the motor design and provides a technical support for the development of the low noise motor.

Description

technical field [0001] The invention relates to a motor vibration test method, in particular to a test method for realizing the physical separation of the vibration characteristics of a stator and a rotor. Background technique [0002] Motor is the most commonly used power source for ships, and it is also one of the main vibration and noise sources of ships. The vibration level directly affects the stealth performance of ships. Therefore, the development of low-noise motors has become an effective way to reduce underwater radiation noise of ships. measure. [0003] Motor vibration is mainly caused by electromagnetic excitation and mechanical excitation, which is transmitted to the stator machine foot through the motor bearing end cover and stator end cover. Electromagnetic vibration is the electromagnetic force wave generated by the electromagnetic field in the air gap of the motor, which excites the motor stator and rotor to vibrate It is transmitted to the machine base, w...

Claims

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Application Information

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IPC IPC(8): G01M7/02
Inventor 冯海军章艺王强周璞丁妍
Owner 上海中船重工船舶推进设备有限公司
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