The influence of different load distribution considering geometric error on the fatigue life of ball screw-Reference-Cited by-同舟云学术

The influence of different load distribution considering geometric error on the fatigue life of ball screw

Published:2024-04-26 Issue:1 Volume:14 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Wu Qin,Li Jianxiong,Liu Jun,Wang Xinglian

Abstract

AbstractThe ball screw pair is a precision drive component that converts rotary motion into linear motion. In practical applications, because the feed system usually has rotational torque and geometric errors, it may increase the contact load of the ball screw pair and reduce the fatigue life. In order to study the influence of different loads and geometric errors on the maximum contact load and fatigue life of ball screw pairs, the following research work was carried out. Firstly, based on the composite load and rotational torque, the ball load distribution model is established, and the accuracy of the model is verified by finite element modeling analysis. Then, the influence of different composite loads, rotation times and geometric errors (including ball size error, lead error and raceway tooth profile error) on the ball load distribution is analyzed. Finally, the influence of compound load, rotating torque and geometric error on the fatigue life of ball screw pairs is studied. The results show that the rotational torque and lead error have a great influence on the load distribution and fatigue life of the ball, and the influence of lead error on load distribution is greater than that of dimension error and tooth profile error. The fatigue life of the ball screw pair with non-uniform load distribution is shorter than that of the ball screw pair with uniform load distribution.

Publisher

Springer Science and Business Media LLC

Link

https://www.nature.com/articles/s41598-024-60247-8.pdf

Reference20 articles.

1. Liu, C. et al. Calculation method of load distribution of ball screw nut subsets. J. Northeastern Univ. Nat. Sci. Ed. 40(12), 1739–1743 (2019).

2. Hai, L. et al. Theoretical calculation and simulation analysis of axial static stiffness of double-nut ball screw with heavy load and high precision. Math. Probl. Eng. 2019, 1 (2019).

3. Luo, F. et al. A quadratic-based method for solving the load distribution of ball screw subsets. Trans. Technol. 36(04), 38–42 (2022).

4. Mei, X. et al. Study on the load distribution of ball screws with errors. Mech. Mach. Theory 38(11), 1257 (2003).

5. Chen, Y. & Tang, W. Mechanical engineering S U N C. Dynamic contact stiffness analysis of a double-nut ball screw based on a quasi-static method. Mech. Mach. Theory 2023, 73 (2013).