某型液压柱塞泵加速寿命试验失效分析  

Failure Analysis of Accelerated Life Test for Hydraulic Piston Pump

作　　者：贺凯歌 严密[2] 黄飞波 HE Kai-ge;YAN Mi;HUANG Fei-bo(Representative Office in Changzhou,Changzhou 213112,China;Changzhou University,Changzhou 213159,China)

机构地区：[1]驻常州地区代表室,江苏常州213112 [2]常州大学,江苏常州213159

出　　处：《液压气动与密封》2023年第6期107-110,共4页Hydraulics Pneumatics & Seals

摘　　要：针对液压柱塞泵加速寿命试验中出现回油压力突然增大的现象,完成了对故障现象的初步判定、分解检查、微分计量和理化分析,通过对历年轴承滚子的凸度值复测,发现滚子凸度设计值不合理是导致产品失效的主要原因,通过统计分析和试验验证,确定了轴承滚子合理凸度值。In view of the sudden increase of return oil pressure in the accelerated life test of hydraulic piston pump,the preliminary judgment,decomposition inspection,differential measurement and physical and chemical analysis of the fault phenomenon are completed.Through the re measurement of the crown value of bearing roller over the years,it is found that the unreasonable design value of roller crown is the main cause of product failure.Through statistical analysis and test verification,The reasonable crown value of bearing roller is determined.

关 键 词：液压柱塞泵 加速寿命试验 失效 轴承滚子 

分 类 号：TH137[机械工程—机械制造及自动化]