摘要
以某型超精密机床为研究对象,对其主轴轴承系统进行了温度分布及特性研究。基于流体力学特性与传热学理论,建立液体静压球轴承的有限元模型,利用Fluent软件,分析液体静压球轴承的温度分布情况,并探究在不同入口压力及主轴转速条件下液体静压球轴承的温度变化规律。分析结果表明:主轴的转速与入口压力对轴承的温升变化在一定范围内是正相关的。为提高超精密机床主轴轴承的精度提供了理论依据。
Aiming at a certain type of ultra-precision machine tool,the temperature distribution and characteristics of its spindle bearing system are studied.Based on the theory of fluid mechanics and heat transfer,the finite element model of hydrostatic ball bearings was established.The temperature distribution of hydrostatic ball bearings was analyzed by Fluent software,and the temperature change law of hydrostatic ball bearing was investigated under different inlet pressures and spindle speeds.The analysis results show that the change of the spindle temperature and the inlet pressure on the bearing temperature rising is positively correlated within a certain range.It provides a theoretical basis for improving the precision of the spindle bearings of ultra-precision machine tools.
作者
刘世坦
沈景凤
汪剑
Liu Shitan;Shen Jingfeng;Wang Jian(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2020年第4期104-107,共4页
Agricultural Equipment & Vehicle Engineering
