Oil-air lubrication is the most effective cooling and lubrication method for high speed spindle.However,to achieve the best lubrication effect,accurate oil air lubrication parameters must be set for different types of bearings and dif-ferent working conditions.This requires reliable experimental equipment to conduct a large amount of experimental analysis.An experimental platform was built to simulate the operating conditions of the spindle,the oil-air lubrication system and an oil-air mixing and distributor that combines the functions of oil-air mixer and oil-air distributor were designed.The experi-mental results show that the optimal speed range of the experimental platform is from 0 to 30 000 r/min,which meets the speed requirements for high-speed machine tool spindle testing.The oil feeding error of the oil-air mixing and distributor meets the industry standard of±10％,and its service life reaches 120 000 times.Therefore,the established experimental platform and oil-air lubrication system have high reliability in conducting experimental research on oil-air lubrication pa-rameters of high speed spindle.
关键词
高速电主轴/油气润滑/油气混合分配器/润滑技术/热误差
Key words
high speed spindle/oil-air lubrication/oil-air mixing and distributor/lubrication technology/thermal error
维普
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