• 机械基础工程 •

### 精密滚珠丝杠副摩擦力矩波动的分析与测试

1. 1.西安理工大学，西安,710048
2.五邑大学,江门,529020
• 出版日期:2010-02-25 发布日期:2010-03-10
• 基金资助:
广东省教育部产学研结合项目资助(2008B0905000081)

### Analysis and Test of Fluctuating Friction Torque in High-precision Ball Screw

Kang Xianmin1,2;Fu Weiping1;Wang Dacheng2;Li Ting2;Wang Shijun2

1. 1.Xi’an University of Technology,Xi’an,710048;
2.Wuyi University,Jiangmen,Guangdong,529020
• Online:2010-02-25 Published:2010-03-10

Abstract:

A theory to analyse the friction torque on ball screw based on friction acting style of ball rolling into and out of groove was firstly brought forward according to the derivation of friction torque on ball screw based on the Hertz contact theory on the point contact model.Then ball rolling into and out of groove was coincided to be as the main reason of friction torque fluctuating and preload was the key determinant factor.The test results indicate that friction torque is proportional to rotational speed and volatility frequency is consistent with the frequency of ball rolling into and out of groove,which proves the analytical methods and the theory is correct.