采用动静压轴承支撑的数控电主轴系统发热研究  

Research on the Heating of Numerical Control Electric Spindle System with the Support of Dynamic and Static Pressure Bearing

作　　者：宁朝阳[1] 颜超英 

机构地区：[1]湖南工业职业技术学院,湖南长沙410208

出　　处：《装备制造技术》2015年第10期185-186,共2页Equipment Manufacturing Technology

基　　金：湖南省教育厅科学研究项目(精密数控磨床电主轴中动静压轴承结构优化研究;15C0448)

摘　　要：采用内置式电机结构的液体静压电主轴系统,因具有传动距离短、结构紧凑等诸多优点而被广泛应用于各类机床,但其散热性能不佳而影响机床加工精度。对某液体静压电主轴系统进行热态特性研究,分析系统热源和散热方式,建立基于热-结构耦合的电主轴系统有限元分析模型,通过对电主轴系统进行热-结构耦合分析,得到某工况下电主轴系统的温度场,同时也可进一步得出其热变形。结果表明,电主轴系统出现明显的温升,将影响轴向和径向热变形,影响加工精度。研究结果为电主轴系统的进一步改进设计提供参考依据。The hquid static pressure electric spindle system with the built-in motor structure, which has many advantages such as short transmission distance, compact structure, is widely used in all kinds of machine tools, but its thermal performance is not good and the machining accuracy of machine tools is affected. In this paper, the thermal characteristics of a hydrostatic spindle system are studied, and the thermal and thermal modes are analyzed, and the temperature field of the electric spindle system is obtained. The results show that the temperature rise of the electric spindle system will affect the axial and radial thermal deformation, which affects the machining accuracy. The research results provide reference for the further improvement of the electric spindle system.

关 键 词：电主轴 热-结构耦合 温度场 

分 类 号：TH122[机械工程—机械设计及理论]