摘要
介绍了高速电主轴的特点,分析了高速电主轴单元的热变形机理与散热机制。建立了某型高速电主轴热态特性有限元分析模型,利用ANSYS进行了稳态/瞬态温度场及热-结构耦合场分析,并利用分布加载瞬态热分析模拟了机床一天中的实际工作情况,得到了电主轴的温度场变化情况,为有效控制电主轴的温升提供了理论依据。在分析结果的基础上,提出了改善电主轴热态特性的措施,为电主轴冷却结构设计提供了参考。
The structure characteristics of high speed motorized spindle are introduced and the mechanism of thermal deformation and heat dissipation of motorized spindle are analyzed. The finite element analysis mod- el of high speed motorized spindle thermal characteristics is built. The static/transient temperature field and thermal - structure coupled field are calculated using software ANSYS. The real working conditions are simulated by step loaded transient thermal analysis and the temperature rising trend is got which can be used for temperature control of motorized spindle. By the result of simulation, the main measures to improve the thermal characteristic of the high speed motorized spindle are put forward and references to structure design of motorized spindle are offered.
出处
《制造技术与机床》
CSCD
北大核心
2008年第4期29-32,共4页
Manufacturing Technology & Machine Tool
基金
国家863高技术研究发展计划资助重点项目(2005AA424222)
关键词
电主轴
热态特性
有限元法
Motorized Spindle
Thermal Characteristic
Finite Element Analysis
