Tribological Properties of Cylinder Block/Valve Plate Interface of Axial Piston Pump on the Tribometer

作     者：Jiahai Huang Zhenhua Dou Zhenglei Wang Long Quan Linkai Niu Jiahai Huang;Zhenhua Dou;Zhenglei Wang;Long Quan;Linkai Niu

作者机构：College of Mechanical and Vehicle EngineeringTaiyuan University of TechnologyTaiyuan 030024China 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2021年第34卷第6期

页      面：281-297页

核心收录：

学科分类：080704[工学-流体机械及工程] 08[工学] 080203[工学-机械设计及理论] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 

基　　金：Supported by National Natural Science Foundation of China(Grant Nos.51775362,51705351) International Cooperation Project of Shanxi Province(Grant No.2016-002) Natural Science Foundation of Shanxi Province(Grant No.201901D111054) 

主　　题：Axial piston pump Valve plate/cylinder block Tribological properties Heat treatment Tribometer 

摘      要：The tribological properties of cylinder block/valve plate is an important consideration in the design of axial piston *** effect of materials and heat treatment on friction and wear properties has been studied in ***-neering experiences show that the speed and load also affect the tribological properties,but these have not been systematically *** purpose of this paper is to evaluate the tribological properties of the commonly used materials(CuPb1 5Sn5 and 38CrMoAl/42CrMo)for cylinder block/valve plate with different heat treatment and con-tact pressure at different *** the test,tribometer is used to simulate the contact pattern between the valve plate/cylinder block in axial piston pump,the friction coefficient,wear rate and surface topography are analyzed to evaluate the tribological properties of different types of friction samples at different *** indicate that:(1)contact surface of the samples at 1800 r/min is more prone to adhesive wear than those at 500 r/min;(2)in the terms of wear resistance,quench-tempered and nitrided 38CrMoAl(38CrMoAl QTN for short)is better than quench-tem-pered and nitrided 42CrMo,although they are all commonly used materials in the axial piston pump;(3)2.5 MPa is the critical contact pressure of the interface between valve plate made of 38CrMoAl QTN and cylinder block made of CuPb1 5Sn5 on the tribometer,which implies the pressure bearing area at the bottom of the cylinder block should be carefully designed;(4)the valve plate/cylinder block made of 38CrMoAl QTN/CuPb15Sn5 exhibits good tribological properties in a real axial piston *** research is useful for the failure analysis and structural optimization design of the valve plates/cylinder block.