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XXXXX大学学士学位论文I液压升降舞台系统摘要本次毕业设计是关于液压升降舞台系统的设计。首先对液压升降舞台作了简单的概述；接着分析了液压升降舞台的基本结构和工艺参数，然后根据所要求的基本工参数和机械机构，进行了液压系统的计算，从而对液压元件进行选型，然后在对所选择的液压升降舞台的性能进行了必要的验算，当验算合格后，本设计给出了升降舞台液压系统的原理图和电气控制图，并对此作出了详细的分析。最后本文简单的说明了液压升降舞台的安装与维护。目前，液压升降舞台正朝着长距离，高速度，低摩擦的方向发展。近年来在液压升降舞台的设计、制造以及应用方面，我国与国外先进水平相比仍有较大差距,国内在设计制造液压升降舞台过程中存在着很多不足，因而所需我们努力改进的地方还有很多。关键词：液压升降舞台机械结构液压系统原理电气控制摘要IITheSystemOfHydraulicElevatorSageAbstractThisgraduatesdesignisaboutthesystemofhydraulicelevatorstage.Firstlyitintroducesthehydraulicelevatorstageinoutline.Thenthisdesignanalysesthebasicstructureandtechnologicalparametersofhydraulicelevatorstage.Afterthatitdoesalotofcomputationaboutthesystemofhydrauliconthebasisofhebasicstructureandtechnologicalparameterssothatwecanchoosethehydrauliccomponent.Afterwardsitdidalotofexamineabouttheperformanceofthehydraulicelevatorstage.Whenexaminemeettherequirement，thisdesignpresentsthekeydiagramandelectriccontrollingsystemdiagramofhydraulicelevatorstagesystem，besides，italsomakeadetailedanalysis。Finally,thispaperbrieflyexplaintheinstallationandmaintenanceofthehydraulicelevatorstage.Atpresent,thehydraulicelevatorstageisdevelopingtowardLongdistance,highspeed,lowfriction.Inrecentyears,atthedesign,manufacturingandapplicationofthehydraulicelevatorstage，Ourcountryandforeignadvancedlevelstilllagsfarbehind.therearemanyshortcomingsintheprocessofdesigningandmakinghydraulicelevatorstageinourcountry.Soweneededtoimproveinmanyareas.KeyWords:hydraulicelevatorstagetechnologicalparameterskeydiagramofhydraulicelevatorsystemelectriccontrollingsystemdiagram南京工业大学学士学位论文III目录摘要..................................................IAbstract..................................................................II一．绪论..................................................................11.1液压技术的应用与特点.........................................11.1.1液压技术的应用.........................................11.1.2液压传动的特点.........................................21.1.3液压系统的组成.........................................2二．液压升降舞台结构分析与设计.....................................52.1升降舞台的简介..............................................52.2升降舞台的液压系统方案的确定................................62.2.1升降台机构的设计.......................................62.2.2升降舞台升降过程示意图.................................72.2.3降台工艺参数...........................................8三．升降舞台液压系统设计计算.......................................93.1执行元件类型、数量、和安装位置...............................93.2升降舞台升降部分的设计.......................................93.2.1确定液压系统的工作要求.................................93.2.2分析液压系统给的工况..................................103.2.3确定液压缸的主要参数..................................10四．液压系统的设计与分析............................................154.1液压回路的选择..............................................154.1.1确定油路方式..........................................154.1.2确定调速方法..........................................164.1.3速度换接回路的选择....................................164.1.4换向回路的选择........................................16目录IV4.1.5压力控制回路的选择....................................174.1.6其他回路的分析与选择..................................174.2升降舞台液压系统工作原理图的确定和分析......................184.2.1升降舞台液压系统工作原理图............................184.2.2液压系统组成及工作原理................................184.3液压元件的选择..............................................194.3.1液压泵及电动机的选择..................................194.3.2液压阀的选择..........................................204.3.3流量控制阀............................................204.3.4方向控制阀...........................................214.3.5其它辅助元件的确定....................................224.4液压元件的连接..............................................244.5液压系统的演算..............................................254.5.1判断流动状态..........................................254.5.2压力损失..............................................254.5.3局部压力损失（油液流经阀的损失）......................25五．液压系统性能的验算..............................................275.1系统压力损失计算以及泵压力的调整............................275.2系统发热及温升计算..........................................28六．电气控制回路的设计..............................................316.1液压和电气控制系统..........................................316.2液压系统和电气系统的仿真....................................32七．升降舞台液压系统的安装调试....................................407.1液压系统的安装..............................................407.1.1系统安装前注意事项....................................407.1.2系统安装时的注意事项..................................407.1.3系统安装方法..........................................427.2液压系统的调试..............................................43南京工业大学学士学位论文V7.2.1调试的目的............................................437.2.2调试的步骤............................................437.2.3调试的主要内容........................................44八.液压系统污染的控制................................................468.1污染的控制..................................................468.1.1污染物种类和来源......................................468.1.2油液污染物的控制......................................478.2泄露控制....................................................488.2.1控制泄露..............................................488.2.2液压系统泄露的排除方法.............