Separated motor testing device capable of adjusting rotor eccentricity

Abstract

The invention provides a separated motor testing device capable of adjusting rotor eccentricity. The separated motor testing device comprises a stator supporting shell, a stator supporting base, two groups of rotor supporting assemblies, a testing assembly and a device base; the stator supporting base is fixed on the device base, a stator fixing groove is formed in the upper end part of the stator supporting base, and the stator supporting shell is detachably fixed at the groove opening of the stator fixing groove through a bolt; the left and right ends of the stator supporting base are respectively provided with a rotor supporting assembly; each rotor supporting assembly comprises an X-axis moving assembly, a Y-axis moving assembly and a rotor supporting frame; each rotor supporting frame is in transmission connection with the corresponding X-axis moving assembly and the Y-axis moving assembly, and horizontal displacement of the rotor supporting frame along the X axis and the Y axis is achieved; the testing assembly is in sensing connection with a tested motor. The invention further provides an eccentricity testing device which is flexible in eccentricity adjustment mode, high in positioning accuracy and suitable for detection of motors of various specifications.

Description

technical field [0001] The invention relates to the technical field of motor detection, in particular to a separate adjustable rotor eccentric motor testing device. Background technique [0002] Rotor eccentricity refers to the deviation between the geometric center of the rotor and the geometric center of the stator. The eccentricity of the rotor will cause the uneven distribution of the air gap length of the motor, and the unbalanced electromagnetic force will aggravate the degree of eccentricity, resulting in increased vibration, torque ripple and noise of the motor, affecting the performance and service life of the motor. The rotor friction collides and damages the motor. Due to factors such as manufacturing and installation errors, severe loads, and bearing wear, motors always inevitably have rotor eccentricity. Therefore, evaluating the influence of rotor eccentricity on motor performance is an important part of the motor design stage. Monitoring is also very necessa...

AI Technical Summary

Problems solved by technology

For the problem of motor rotor eccentricity, in order to meet the needs of motor design and operation monitoring, it is necessary to conduct experimental tests on the motor under different degrees of rotor eccentricity. However, most of the current motor eccentricity detection devices have a single structure. For different motors, different eccentricity It is difficult to carry out comprehensive detection, and the practicality is greatly reduced

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