Simulation Analysis of Tooth Surface Wear Considering Axis Parallelism Error

Abstract

Axis parallelism error cause edge contact and stress concentration, which lead to uneven load distribution and uneven wear of tooth surface, and seriously reduce service life. In this paper, a tooth contact analysis (TCA) model and a gear wear analysis model considering the axis parallelism error were established based on the basic equation of contact problem and Archard’s wear equation, and the change of contact characteristics and wear depth were analyzed. The results show that when the axis parallelism error exists, the tooth load is uneven, and the load distribution becomes more uneven with the increase of the error, and the uneven contact is improved with the increase of load. The wear depth decreases in the tooth width direction, and the wear depth decreases firstly and then increases along the line of action, and the wear depth of the pitch point is zero. The wear depths reach their maximum value at the root of the pinion where the stress concentration occurs, and the maximum wear depth increases non-linearly.