A method for judging wear of inner rotor bearings in magnetic pumps
A bearing wear and determination method technology, which is applied to components, pumps, and pump control of elastic fluid pumping devices, can solve problems that cannot directly reflect the degree of heat generation of the isolation sleeve, achieve simple and reliable measurement methods, and avoid serious problems. the effect of consequences
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[0029] Such as Figure 4 In the middle left picture, when the rotor bearing is not worn, the air gap between the inner and outer magnetic cylinders is evenly distributed (x1=x2), the air gap magnetic field strength is also equal, the eddy current effect of the isolation sleeve is the same, and the heat generation at each point is uniform. After rotor bearing wear, such as Figure 4 As shown in the figure on the right, the eccentricity of the inner magnetic cylinder (x1≠x2) leads to uneven distribution of the air gap magnetic field, and the intensity of the eddy current effect of the isolation sleeve is different, and the heat generation is different. The temperature sensor is used to determine the highest and lowest temperature points of the isolation sleeve along the circumferential direction. Then calculate the temperature difference between the highest point and the lowest point of temperature. Once the temperature difference exceeds the lowest level of the safety threshold...
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