Research on Influence Law of Multi-scale Texture Parameters on the Friction Characteristics of Reciprocating Hydraulic Friction Pair
Friction wear of the friction pair is the main reason for limiting the service performance of mechanical equipment,textu-ring treatment is an effective method to improve the friction characteristics of the contact surface of the friction pair,the current texturing research lacks the design system of the texturing parameters under the hydraulic working conditions.In view of this problem,simulation and experimental methods were used to orthogonalize the lubrication and friction characteristics of textured surfaces in the form of recip-rocating motion.Using the range analysis method,the dynamic pressure load capacity of the simulation group and the wear amount of the test group were taken as the evaluation standard,and the weights of each parameter's influence on the texturing surfaces were obtained as diameter>depth>areal density>shape,and the optimal texturing parameters were outer circle diameter of 700 μm,triangular shape,the depth of 300 μm,and the areal density of 8%.The optimal parameter design system of texture was established under hydraulic work-ing conditions.It lays foundation for the practical application of texturing treatment in hydraulic friction pair.