Wear analysis of swash plate/slipper pair of axis piston hydraulic pump

The paper presents a method on the basis of Elasto Hydrodynamic Lubrication (EHL) model to analyze the wear behavior of swash plate/slipper pair. Based on the analysis of film thickness, the associated internal factors affecting the wear behavior are identified by considering comprehensively parameters of structure, working conditions and material properties. The comparison of the wear masses of theoretical analysis and wear tests verifies the proposed method. The relationships between wear rate of the friction pair and associated parameters are analyzed. Research results can be utilized to compile the accelerated test load spectrum and contribute to optimizing the pump design.