Study on Surface Adhesive Wear and Wear Life of Double Involute Gears Under Mixed Elastohydrodynamic Lubrication

Abstract

To slow down the surface wear process of double involute gears (DIG), the surface adhesive wear model and wear life prediction model are established according to its meshing characteristics, combined with the modified Archard wear model and mixed elastohydrodynamic lubrication (EHL) model. This paper studies the surface wear and wear life of DIG, compares it with common involute gears (CIG), and discusses the influence of different factors on its surface wear. Results show that the adhesive wear distribution of DIG is similar to that of CIG. Properly reducing l* and increasing y* can reduce surface wear and prolong wear life. The reasonable selection of lubrication states and working conditions can be beneficial to enhance its tooth surface wear resistance.