Analysis of force and leakage in water hydraulic motor's piston pairs

查看全文 作　　者：[1,2]王志强;DAI [1]Zejun;LI [3]Xinglin;HE [2]Wen;GAO [4]Dianrong

机构地区：[1]School of Mechanical Engineering,Hangzhou Dianzi University,Hangzhou 310018,P.R.China;[2]School of Mechanical Engineering,Zhejiang University,Hangzhou 310058,P.R.China;[3]Post-Doctoral Research Center,Hangzhou Bearing Test&Research Center Co.Ltd.,Hangzhou 310022,P.R.China;[4]School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,P.R.China

出　　处：《High Technology Letters》索引2022年第28卷第3期,共9页

基　　金：Supported by the National Natural Science Foundation of China (No.51505111);China Postdoctoral Science Foundation (No.2020M681844);Zhejiang Province Postdoctoral Science Foundation (No.ZJ2020043)。 摘　　要：The positive pressure between pistonwall and piston hole of inner curve water hydraulic motor’s piston pairs is analyzed.The flow field of the piston pairs is numerically calculated and analyzed by the use of computational fluid dynamics method.The pressure and velocity distribution of flow field at different clearance is analyzed in the paper.The results show that when the clearance is 4-8 μm,with the increase of clearance,the negative pressure and the velocity of piston chamber decrease significantly,the velocity and leakage flow of the clearance increase.However,when the clearance is 10 μm,the negative pressure and the velocity of plunger chamber increase suddenly.By comprehensive analysis,the cylinder annular clearance should be controlled to be near 8 μm. 关键词：water hydraulic motor piston pairs CLEARANCE leakage flow numerical simulation

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Analysis of force and leakage in water hydraulic motor's piston pairs

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