基于有限元法的中空冷却滚珠丝杠温升及热变形研究  

Research on temperature rise and thermal distortion of hollow cooling ball screw based on finite element method

作　　者：芮执元[1] 张传辉[1] 郭俊锋[1] 

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050

出　　处：《机械设计》2011年第12期17-20,共4页Journal of Machine Design

基　　金：国家重大科技专项资助项目(2009ZX04001)

摘　　要：针对高速机床工作过程中滚珠丝杠进给系统的发热及热变形问题,基于传热学理论,建立了中空冷却滚珠丝杠传动过程中温度场和热变形的数学模型,并通过有限元仿真模拟和丝杠冷却模拟运行试验对该模型进行验证。结果表明,随着丝杠转速的提高和运行时间的增加,丝杠温升和热变形先是逐渐增大,然后趋于一个稳定值。Aiming at heat generation and thermal deformation problems during the working process of ball screw feeding system in high speed machine,a mathematical model for temperature field and thermal distortion of hollow cooling ball screw drive was established based on heat transfer theory.The model was validated through the finite element simulation and screw cooling running simulation test.The results show that the screw temperature rise and thermal deformation of the screw increases gradually and tends to be a steady value with the screw speed increases and operation time elapses.

关 键 词：滚珠丝杠 中空冷却 温度场 热变形 有限元 

分 类 号：TH132.1[机械工程—机械制造及自动化]