摘要
以某种数控螺旋锥齿轮磨齿机为研究对象,分析其主轴系统的主要热源、传热途径及边界条件,在此基础上建立主轴系统热特性分析的有限元模型。用有限元法计算三维瞬态温度场分布,得到主轴系统达到热平衡的时间约为3h,最高温度发生在前端轴承处,最高温升为28.275℃,为以后计算主轴的热变形及优化设计散热结构奠定了基础。
One CNC spiral bevel gears grinder machine is investigated, and the principal heat sources, heat transfer media and boundary conditions of its spindle system are analyzed ,then the finite element model for thermal characteristics analysis is founded. The 3D transient temperature field is simulated by using finite element method, and the analysis results show that the spindle system reaches thermal balance after the machine has run 3 hours, and the highest increase of the temperature can reach 28.275℃ which occurs on the front bearing.
出处
《现代制造工程》
CSCD
北大核心
2009年第2期65-68,共4页
Modern Manufacturing Engineering
基金
国家973重点基础研究发展计划项目资助(2005CB724100)
关键词
主轴系统
热分析
有限元法
瞬态温度场
spindle system
thermal analysis
finite element method
transient temperature field
