Device and method for adjusting lubrication state of bearing by monitoring temperature of inner ring

Abstract

The invention provides a device and method for adjusting the lubrication state of a bearing by monitoring the temperature of an inner ring. The temperature of the inner ring of the bearing is measured in a non-contact mode through a CdTe quantum dot, measurement data are transmitted to a controller, when the temperature change of the inner ring of the bearing is large, the controller drives a supply quantity change mechanism to adjust the position of an oil supply nut, and then the quantity of lubricating oil supplied by an oil supply mechanism is changed; when the temperature of the inner ring of the bearing exceeds a certain value, the stickiness of the lubricating oil is lowered, and good lubricating effect can be guaranteed by adjusting the distance between the lower end face of an oil supply nozzle and the inclined surface part of the outer diameter surface of the inner ring of the rolling bearing. According to the device and the method, the temperature of the inner ring is monitored on line, the supply quantity of the lubricating oil is automatically adjusted, the position of the oil supply nozzle is manually adjusted, the closed loop coupling influence of the lubricating property of the bearing and temperature rise of the inner ring of the bearing are considered, a mechanism for changing the gap between the oil injection nozzle and the inclined surface part of the outer diameter surface of the inner ring of the bearing is provided, and the effect is good in experiments.

Description

technical field [0001] The invention belongs to the technical field of fluid lubrication, and in particular relates to a device and method for adjusting the lubrication state of a bearing by monitoring the temperature of the inner ring. By monitoring the temperature of the inner ring online, the oil supply amount is automatically adjusted and the position of the oil supply nozzle is manually adjusted. Background technique [0002] The purpose of rolling bearing lubrication is to form a thin oil film on the rolling surface and sliding surface. If the lubrication state is not good, the friction and wear between the rolling bearing components and the lubricant and the heat generation will increase sharply, and the temperature of each component of the bearing will rise significantly. The temperature of the ring is higher than that of the outer ring due to factors such as machining load, and the thermal expansion difference between the inner ring and the outer ring due to the prec...

AI Technical Summary

Problems solved by technology

Patent Document 1: Japanese Patent Laid-Open No. 2007-101059152 proposes a device for adjusting the supply of lubricating oil by changing the rotational speed of the bearing. The speed is an open-loop one-way adjustment

Patent Document 2: Japanese Patent Application Laid-Open No. 2007-101059152 proposes to reduce the heat generated by oil-churn friction when the rolling bearing runs at high speed by setting the gap between the sealing part and the inner ring of the bearing. The problem is that the gap cannot be adjusted

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