Particle generation characteristics of ballscrew

LIANG Han, YANG Jiajun, GAO Yang, ZHANG Chuanxiang,
SHI Jianhua, ZHAO Meiling

(School of Mechanical Science & Engineering, Huazhong University of Science and
Technology, Wuhan 430072, China)

Abstract: Aiming at the problem of maintaining the clean room environment level, the particle generation of ballscrew and the service life of the grease was researched, and the theoretical research was presented to find the regular in particle generation. In order to prove this theory, the particle generation comprehensive experimental platform was designed, and the characteristics of ballscrew data was tested out. From this data, the new formula was fit in Matlab, the exponential function about relation between the particle generation and the distance was built. The results indicate this theory has certain objective basis and practicality, the formula could be used to analyze the particles and take some methods to reduce it. There is a way to reduce the particle generation from its source, and ensure overall environment cleanliness level effectively.

Key words: particle generation; diffusivity; data fitting; dust extraction; cleanliness level