工程机械液压故障诊断与维修—毕业设计.doc

西安航空职业技术学院 毕业设计论文 核准通过 归档资料 未经允许 请勿外传 工程机械液压故障诊断与维修工程机械液压故障诊断与维修 摘要 本文主要阐述了工程机械的液压系统的故障诊断的方法和步骤 归纳出了 液压系统常见的故障的征兆 重点介绍了应用观察诊断法和仪器检测诊断法如 何诊断液压系统的故障 分析了液压元件常见故障及排除方法 列举了 zl50 型 轮式装载机 讲述了该型装载机的液压系统以及常见故障诊断及维修 还介绍 了液压系统漏油的防治 文章最后介绍了液压系统故障诊断的发展趋势 关键词 工程机械 液压故障 诊断方法 诊断步骤 故障排除 诊断趋势 abstractabstract this article mainly elaborated the hydraulic systems of engineering machinery fault diagnosis of a basic conditions and analyses the basic method sums up the hydraulic system of common fault characteristic analyzed the hydraulic components common faults and eliminating methods secondly respectively introduces application observation diagnostics and instrument diagnostics how to diagnose the fault hydraulic system in this observation diagnostics enumerated zl50 type wheel loader tells the loader hydraulicsystem and fault diagnosis example at last the paper introduces the hydraulic system leakage prevention therein mainly introduced the correct installation pipe prevent oil temperature is exorbitant 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