摘要
以高速精密机床中使用的空心滚珠丝杠为研究对象,利用ANSYS热分析模块对该滚珠丝杠在不同转速和不同冷却液流量下的热特性进行了分析。得到了该空心滚珠丝杠不同工况下的温度场和热位移,同时通过对滚珠丝杠表面结点温升曲线的分析比较,得到了针对该类型空心滚珠丝杠的最佳冷却液流量值和不同转速下空心滚珠丝杠达到其热平衡的时间。分析结果可为空心滚珠丝杠的热设计提供参考。
Taking a high speed hollow ball screw of the precision machine tool as the research object,the thermal characteristics of the high speed hollow ball screw were analysised in different speeds and different coolant flows by means of the ANSYS thermal analysis module in this paper.It got the temperature field distributions and thermal displacements of the hollow ball screw in different working conditions.At the same time,it got the best coolant flow and the time reaching heat balance in different speeds aiming at this kind of the hollow ball screw through analyzing and comparing surface node temperature rise curves of the hollow ball screw.The analysis results can be used as a guide for thermal design of the hollow ball screw.
出处
《组合机床与自动化加工技术》
北大核心
2011年第3期30-32,44,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
国家"高档数控机床与基础制造装备"科技重大专项课题(2009ZX04001-014)
陕西科技大学研究生创新基金
关键词
高速精密机床
滚珠丝杠
温度场
热位移
有限元分析
high precision machine tool
ball screw
temperature field
thermal displacement
finite element analysis
