T型槽织构化机床滑动导轨的摩擦学特性  

Tribological Properties of Sliding Guide Rail of T-groove Textured Machine Tool

作　　者：朱玮 吴玉国[1] 时礼平[1,2,3] 王涛 章亦聪[1] ZHU Wei;WUYuguo;SHI Liping;WANG Tao;ZHANG Yicong(School of Mechanical Engineering,Anhui University of Technology,Maanshan 243032,China;International Science and Technology Cooperation Base for Intelligent Equipment Manufacturing in Special Service Environment,Anhui University of Technology,Maanshan 243032,China;Anhui Province Key Laboratory of Special Heavy Load Robot,Anhui University of Technology,Maanshan 243032,China)

机构地区：[1]安徽工业大学机械工程学院,安徽马鞍山243032 [2]安徽工业大学特殊服役环境的智能装备制造国际科技合作基地,安徽马鞍山243032 [3]安徽工业大学特种重载机器人安徽省重点实验室,安徽马鞍山243032

出　　处：《安徽工业大学学报（自然科学版）》2020年第4期356-363,共8页Journal of Anhui University of Technology（Natural Science）

基　　金：安徽高校自然科学研究重点项目(KJ2019A0078,KJ2019A0057);安徽高校优秀青年人才项目(gxyq2019018);江苏省精密与微细制造技术重点实验室开放基金项目;特种重载机器人安徽省重点实验室开放基金项目(TZJQR003-2020)。

摘　　要：在机床导轨表面配置T型槽织构,采用GAMBIT软件对T型槽内流体进行网格划分,采用FLUENT软件对T型槽端面流场进行流体仿真分析,考察T型槽织构长度系数比α、宽度系数比β、偏转角度θ、织构厚度hp及进口速度u对T型槽摩擦配副间无量纲承载力、摩擦系数和承摩比的影响。结果表明:T型槽织构化端面无量纲承载力、摩擦系数具相同的变化规律;当α=0.3~0.4,β=0.5,θ=90°,hp=6μm,u=1 m/s时,T型槽获得最优承摩比;在机床滑动导轨表面设置T型槽织构能够有效改善导轨表面的摩擦学性能。The T-groove texture was arranged on the surface of the machine tool guide rail.The fluid in the T-groove was meshed by gambit software.The fluid flow field at the end of the T-groove was simulated by FLUENT software.The effects of the length coefficient ratioα,width coefficientβ,deflection angleθ,texture thickness hp and inlet velocity u on the dimensionless bearing capacity,friction coefficient and friction ratio between T-groove friction pairs were investigated.The results show that the dimensionless bearing capacity and friction coefficient of the textured end face of T-groove have the same variation rule.Whenα=0.3-0.4,β=0.5,θ=90°,hp=6μm,and u=1 m/s,the optimal friction ratio is obtained for the T-groove.The tribological properties of the sliding guide for machine tool can be improved effectively by setting T-groove texture on the surface of the sliding guide rail.

关 键 词：T型槽 表面织构 摩擦学特性 

分 类 号：TG502.16[金属学及工艺—金属切削加工及机床]