油气润滑机械主轴热特性的有限元分析  

Finite Element Analysis of Thermal Characteristics of Oil/Air Lubricated Mechanical Spindle

作　　者：陈功[1] 朱如鹏[1] 李苗苗[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械工程与自动化》2016年第4期64-66,69,共4页Mechanical Engineering & Automation

摘　　要：以加工中心用高速油气润滑机械主轴为研究对象,运用有限元软件ANSYS研究了各工况和油气润滑参数对主轴尤其是主轴轴承温升的影响。研究结果表明:随着转速的增加,前后轴承温升增加;随着加载载荷的增加,前后轴承的温升和温差缓慢增加;低转速下,轴承温升和温差受润滑油黏度的影响较小,高转速下受润滑油黏度的影响较大。Based on high-speed oil/air lubricated mechanical spindle for machining center,the influence of operating conditions and oil/air lubrication parameters on the temperature rise of the spindle especially the spindle bearing was studied by using the finite element software ANSYS.The study shows that the temperature rise of the bearing increases with the increase of the speed.Also,with the increase of the load,the temperature rise and the temperature difference between the front and rear bearings increase slowly.Besides,at low speed,the oil viscosity has a small influence on the temperature rise and temperature difference;conversely,at high speed,it has a great influence.

关 键 词：机械主轴 油气润滑 热特性 有限元分析 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]