高性能滚珠丝杠副有限元热分析  

Thermal Analysis of High Performance Ball Screw Pair by Finite Element Method

作　　者：陈婉[1] 王科社[1] 宋杰[1] 董青霞[1] CHEN Wan;WANG Ke-she;SONG Jie;DONG Qing-xia(Beijing Information Science & Technology University, Beijing, 100192)

机构地区：[1]北京信息科技大学,北京100192

出　　处：《新型工业化》2016年第11期58-63,共6页The Journal of New Industrialization

基　　金：北京市科技计划课题(121100001612010)

摘　　要：结合热传递的相关知识,计算滚珠丝杠副丝杠、轴承以及电机三种热源的发热量及边界对流系数。利用有限元分析软件对滚珠丝杠副进行温度场仿真分析,发现温升近似与转速成正比且电机的温升最高。进而对各部分热源的温升情况进行实验验证,证明了仿真结果的正确性。在此基础上,对滚珠丝杠副进行热变形分析,得出热变形及热应力分布云图。分析转速与初始温度对热变形的影响,结果表明,转速越大,初始温度越高,热变形量越大,且热应力主要集中在丝杠两端,中间部分的热应力分布比较均匀,应力较小。Based on the relevant knowledge of heat transfer, calculate the screw of, bearing and motor three heat source of ball screw’s heat and convection coefficient of boundary. By using finite element analysis software, temperature field simulation analysis was carried out on the ball screw pair, found out that temperature approximation is proportional to the speed and the highest temperature is the motor. Then make an experimental verification for the parts temperature condition to prove the correctness of the simulation results. On this basis, the thermal deformation analysis was carried out on the ball screw pair. It is concluded that the thermal deformation and thermal stress distribution nephogram. Analyze the influence of the rotational speed and initial temperature on the thermal deformation. Results show that the greater the speed, the higher the initial temperature,and the bigger the thermal deformation. In addition, the thermal stress is mainly concentrated on both ends of screw, while the middle part of the thermal stress distribution is evener and less stress.

关 键 词：滚珠丝杠 温度场 热变形 有限元分析 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]