【论文】工程机械液压系统故障诊断与分析

《【论文】工程机械液压系统故障诊断与分析》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、【论文】工程机械液压系统故障诊断与分析工程机械液压系统故障诊断与分析摘要液压故障诊断是判断机械设备液压系统的运行状态是否正常液压系统是否发生故障确定液压设备发生故障的部位及产生故障的性质和原因同时液压系统是结构复杂且精密度高的机电液综合系统系统具有机液耦合时变性和非线性等特性液压故障因故障点隐蔽因果关系复杂易受随机性因素影响失效分布较分散加大了故障诊断与检测的难度液压故障诊断是由现代机械设备及其元件的高度可靠性要求和需要迅速排除故障而提出的在许多要害工业部门已经逐渐发展机器状态监视和控制技术利用机器

2、在运行过程中的二次效应来诊断机器的状态二次效应是指机器在运行中所出现的现象如温升噪声振动压力振摆泄漏量流量润滑油状态运动速度及各种性能指标因此深入研究这些现象有助于逐步建立完善的诊断理论发展完善的测试技术及实现预知维修提高现代化维修技术水平把定期维修改变为预知维修这样不仅可以节约大量的维修费用减少许多不必要的维修时间而且还可以大大增加机器设备的正常运行时间大幅度地提高生产率产生巨大的经济效益关键词工程机械液压故障诊断方法故障诊断步骤ＡＢＳＴＲＡＣＴHydraulicfaultdiagnosisisj

3、udgemechanicalequipmentofthehydraulicsystemrunningstateisnormalornotwhetherthehydraulicsystemfailuredeterminethehydraulicequipmentthefailureofthepartsandproducethenatureandcausesofthefaultAtthesametimehydraulicsystemiscomplicatedstructureandhighprecisi

4、onofmachineelectricityliquidcomprehensivesystemthesystemhasthemachineliquidcouplingchangeableandnonlinearcharacteristicsHydraulicfailureduetoafailurepointconcealmentcausalrelationshipscomplexvulnerabletorandomfactorsaffectingfailuredistributionismoredi

5、spersedincreasethefaultdiagnosisandthedifficultyofthetestHydraulicfaultdiagnosisisbymodernmechanicalequipmentanditscomponentsofhighreliabilityrequirementsandneedtoquicklyremovethefaultsandproposesInmanykeyindustrialsectorhasgraduallydevelopmentstatemon

6、itorandcontroltechnologyofmachineuseofmachinesinoperationprocessofthesecond-ordereffecttodiagnosethestateofthemachineThesecond-ordereffectitistopointtoinoperationofmachineinphenomenasuchastemperaturenoisevibrationpressurevibrationplaceleakageflowlubric

7、atingoilstatevelocityandvariousperformanceindicatorsThereforefurtherstudyofthesephenomenahelptograduallyestablishaperfectdiagnosistheorythedevelopmentoftechnologyandrealizeperfecttestpredictingmaintenanceimprovethemodernmaintenancetechnologylevelandreg

8、ularmaintenancechangeforpredictingmaintenanceSonotonlycansavealotofmaintenancecostsreducemanyunnecessarymaintenancetimebutalsocanbegreatlyincreasedthenormaloperationofthemachineequipmenttimegreatlyenhanceproductivityproducethehugeeconom