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A Method for Calculating the Eccentric Distance of the Eccentric Shaft of a Motor Using a Linear Spring

A technology of linear spring and eccentric distance, which is applied in the field of motor shaft eccentric distance measurement, can solve the problems of reduced motor service life, insufficient precision, increased noise, etc., and achieve the effect of improving measurement accuracy and good motor vibration isolation protection

Active Publication Date: 2020-08-14
CHANGZHOU UNIV
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  • Abstract
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Problems solved by technology

[0002] The motor shaft must have a certain eccentricity in the actual processing process, which will cause the shaft to vibrate when the motor is working, which will increase the noise and reduce the service life of the motor
When the eccentricity of the motor is small, the existing eccentricity measurement method is not accurate enough, so it is necessary to design an eccentricity measurement method for the small eccentricity motor shaft

Method used

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  • A Method for Calculating the Eccentric Distance of the Eccentric Shaft of a Motor Using a Linear Spring

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] see figure 1 Shown, a kind of method of utilizing the linear spring of the present invention to calculate the eccentric distance of motor eccentric shaft, it comprises the following steps:

[0020] see figure 1 As shown, Step 1: Install the motor on the linear spring to form a vibration system;

[0021] see figure 1 As shown, select a linear spring with a known stiffness coefficient k, and install the motor on the linear spring;

[0022] see figure 1 As shown, Step 2: Measure the total elastic deformation x caused by the weight of the motor 0 ;

[0023] see figure 1 As shown, use a micrometer to measure the total elastic deformation of the linear spring under the action of gravity of the motor x 0 ;

[0024] see figure 1 As shown, step three: use the sensor to measure the vibration acceleration α 0 ;

[0025] see f...

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Abstract

The invention discloses a method for calculating an eccentric distance of a motor eccentric shaft by use of a linear spring and belongs to the technical field of measurement of the eccentric distanceof the motor shaft. The method comprises the following steps of step I, mounting a motor on a linear spring to compose a vibration system; step II, measuring a total elastic deformation x0 caused by the weight of the motor; step III, measuring a vibration acceleration a0 by use of a sensor; step IV, calculating a rated inertia force FI of the motor shaft by use of measurement data; and step V, calculating the eccentric distance e of the motor shaft by use of the rated inertia force FI. The invention is the method for calculating the eccentric distance of the motor eccentric shaft by use of thelinear spring for the motor with small eccentric distance and high rated rotation speed.

Description

technical field [0001] The invention mainly relates to the technical field of measuring the eccentric distance of a motor shaft, in particular to a method for calculating the eccentric distance of an eccentric shaft of a motor by using a linear spring. Background technique [0002] The motor shaft must have a certain eccentricity in the actual processing process, which will cause shaft vibration when the motor is working, which will increase noise and reduce the service life of the motor. When the eccentricity of the motor is small, the existing eccentricity measurement method is not accurate enough, so it is necessary to design an eccentricity measurement method for the small eccentricity motor shaft. Contents of the invention [0003] The technical problem to be solved by the present invention is: aiming at the technical problems existing in the prior art, the present invention provides a method for calculating the eccentric distance of the eccentric shaft of the motor b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/24
CPCG01B21/24
Inventor 李晓艳吴王平班书昊苗乃明
Owner CHANGZHOU UNIV