预紧力作用下滚珠丝杠温升的理论分析及试验研究  

Theoretical Analysis and Experimental Study of Temperature Rise for Pre-tightening Ball Screw

作　　者：王立[1] 周长光 祖莉[1] 冯虎田[1] 

机构地区：[1]南京理工大学机械工程学院,南京221000

出　　处：《组合机床与自动化加工技术》2016年第6期1-4,7,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技重大专项(2012ZX04002021)

摘　　要：滚珠丝杠的温升直接影响其使用的精度,通过误差补偿技术可以解决这一问题,为了研究预紧力作用下丝杠的温升情况,通过摩擦生热和热对流原理建立了计算滚珠丝杠副温升的理论模型,探究了丝杠温升与预紧力的关系。将通过该模型计算的不同预紧力下的理论温升,与试验测得的试验温升进行对比分析,试验结果证实了该计算模型的正确性。该模型对于滚珠丝杠在使用中的热变形误差补偿具有十分重要的意义。The temperature rise of the ball screw directly affects the accuracy. Error compensation can solve this problem effectively. In order to study the temperature rise of ball screw under the pre-tightening force,a theoretical calculation of ball screw temperature rise was established based on the principle of friction heat and heat convection. The temperature rises under different pre-tightening forces were calculated,and the results were compared with the experimental results. Through these works,the calculation was proved to be correct and is very important for the error compensation of ball screw.

关 键 词：预紧力 摩擦力矩 热对流 温升 

分 类 号：TH162[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]