液压马达球铰副表面ZrO_(2)涂层的摩擦学性能  

Tribological Properties of ZrO_(2)Coating on the Surface of Ball Joint Pair of Hydraulic Motor

作　　者：寇保福[1] 张登科 李振顺 张涨 李瑞清 刘冠臣 KOU Baofu;ZHANG Dengke;LI Zhenshun;ZHANG Zhang;LI Ruiqing;LIU Guanchen(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030000,China)

机构地区：[1]太原科技大学机械工程学院,山西太原030000

出　　处：《机床与液压》2023年第1期1-6,共6页Machine Tool & Hydraulics

基　　金：国家自然科学基金青年科学基金项目(51904195);山西省重点研发计划(指南)项目(201803D421041);山西省基础研究计划(20210302123209)。

摘　　要：为探索表面ZrO_(2)涂层的球铰副在液压马达中的摩擦学规律,采用摩擦磨损试验机和白光干涉仪模拟ZrO_(2)涂层的球铰副在不同载荷和转速的工况下,球铰副在液压马达中的摩擦磨损变化情况。分别从摩擦因数、磨损体积和磨痕形貌分析其摩擦磨损规律,从中找到最优的工况去提高ZrO_(2)涂层的球铰副寿命和工作效率。通过开展控制变量试验发现:转速对ZrO_(2)涂层的球铰副摩擦学性能的影响远大于载荷,在100 N-100 r/min时摩擦因数最小为0.0596;磨损体积随载荷和转速的增大而逐渐增大,且在50 N-50 r/min时磨损体积最小为0.184 mm3。综合以上规律发现,载荷100 N和转速50 r/min工况下ZrO_(2)涂层的球铰副减摩抗磨效果最好,低转速能够有效延长液压马达的使用寿命和提高机械效率。In order to explore the tribological law of the ball joint pair coated with ZrO_(2)in the hydraulic motor,the friction and wear changes of the ball joint pair coated with ZrO_(2)in the hydraulic motor under different loads and speeds were simulated by using a friction and wear tester and a white light interferometer.The friction and wear law was analyzed from the friction coefficient,wear volume and wear trace morphology,and the optimal working condition was found to improve the service life and working efficiency of the ball joint with ZrO_(2)coating.Through the control variable test,it is found that the influence of rotating speed on the tribological properties of ZrO_(2)coated ball joint is much greater than the load,and the minimum friction coefficient is 0.0596 at 100 N-100 r/min;the wear volume increases gradually with the increase of load and speed,and the minimum wear volume is 0.184 mm~3 at 50 N-50 r/min.Based on the above laws,it is found that the friction reduction and anti-wear effect of ZrO_(2)coated ball joint pair is the best under the working conditions of load 100 N and rotating speed 50 r/min.Low rotating speed can effectively prolong the service life of hydraulic motor and improve mechanical efficiency.

关 键 词：ZrO_(2)涂层球铰副 摩擦磨损 摩擦因数 磨损体积 

分 类 号：TH117[机械工程—机械设计及理论]