Bearing clearance monitoring system and bearing clearance monitoring method

Abstract

The invention provides a novel bearing clearance monitoring system and a novel bearing clearance monitoring method. The bearing clearance monitoring system comprises a displacement sensor, a fixing unit, and a data acquisition unit. The fixing unit is used for fixing the displacement sensor above a bearing. The data acquisition unit is used for acquiring information about the axial clearance of the bearing from the displacement sensor. According to the bearing clearance monitoring system and the bearing clearance monitoring method provided by the embodiments of the invention, the axial clearance of a bearing can be measured conveniently before or after shafting mounting and during shafting mounting, and thus, the mounting precision of shafting is improved.

Description

technical field [0001] The present invention relates to the mechanical field, and more particularly relates to a bearing clearance monitoring system and method. Background technique [0002] In the case that the motor in the wind turbine adopts a new shafting design, it is necessary to accurately grasp the changes of the key design parameters of the shafting during the operation of the wind turbine in order to conduct a comprehensive understanding and evaluation of the wind turbine. [0003] The size of the clearance when the bearing is running (ie, the working clearance of the bearing) has an impact on the rolling fatigue life, temperature rise, noise, vibration and other properties of the bearing. After the inner ring and outer ring of the front / rear bearing of the motor of the wind turbine are interference-fitted with the moving shaft and the fixed shaft respectively, the clearance of the bearing can be measured with conventional feeler gauges, dial gauges, depth gauges, ...

AI Technical Summary

Problems solved by technology

After the inner and outer rings of the front / rear bearings of the wind turbine motor are interference-fitted with the moving shaft and the fixed shaft respectively, the clearance of the bearings can be measured with conventional feeler gauges, dial gauges, depth gauges, etc., but Such a measurement process is time-consuming and laborious, and there are large errors in the measurement results, especially when measuring the gap between the rolling element and the inner ring.

The shafting assembly accuracy requirements are very high. It is the main drive system of the entire wind turbine. Conventional measurement methods cannot intuitively reflect the technical requirements and accuracy of the assembly process during the shafting assembly process.

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