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采用液控单向阀平衡回路的实验装置设计论文[带图纸].doc

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采用液控单向阀平衡回路的实验装置设计论文[带图纸].doc

本科毕业设计论文题目采用液控单向阀的平衡回路实验装置设计系别机电信息系专业机械设计制造及其自动化班级学生学号指导教师2013年5月I采用液控单向阀平衡回路的实验装置设计摘要液压基本回路是为了实现特定的功能把有关的液压元件组合起来的典型油路结构,是组成任何液压系统的基础。平衡回路的功用就是在于防止垂直或倾斜放置的液压缸和与之相连的工作部件因自重而自行下落,使执行元件的回油路上保持一定的背压值来平衡工作的稳定。本文对采用液控单向阀的平衡回路实验装置的原理进行了详细的分析,再根据液压传动相关理论进行数据计算,设计液压缸,选择合适的液压元件、液压油箱、液压站的动力装置,然后确定电机与泵的安装方式,进行管路与管接头的选择等等,最后对本次设计的实验台装置进行性能验算,包括压力损失的验算、总统效率估算和系统温升校核三个环节。同时完成设计的总装配图及部分零件图等等,最终完成整个设计。关键词液压液压回路平衡回路实验台IIThedesignofexperimentaldeviceadoptsthehydrauliccontrolonewayvalvebalancecircuitAbstractThehydraulicpressurebasiccircuitistoputthetypicalcircuitstructureofhydrauliccomponentsarecombinedontherealizationofspecificfunctions,isthebasiccomponentofanyhydraulicsystem.Balancecircuitfunctionistopreventthehydrauliccylinderverticallyorobliquelyplacedandconnectedwiththeworkingpartscausedbyselfweightdrop,sothattheimplementationofcomponentsofthereturnlinetomaintainacertainpressuretobalancetheworkstability.Theprincipleofbalancecircuitexperimentdeviceofthehydrauliccontrolonewayvalveareanalyzedindetail,andthentherelatedtheoryofdataaccordingtothecalculationofhydraulictransmission,hydrauliccylinderdesign,selectionofhydrauliccomponents,powerdevice,hydraulicstationhydraulicoiltankright,thendeterminetheinstallationmodeofmotorandpump,pipelineandpipejointselectionandsoon,theperformancecalculationofthedesignoftheexperimentaldevice,includingtemperaturechecking,Presidentefficiencyestimationandthepressurelossofthesystemorcheckthreelinks.Atthesametimetocompletethedesignofassemblydrawingandpartsdrawingandsoon,andultimatelycompletethedesign.KeyWordsHydraulicpressureHydraulicpressurecircuitbalancecircuitlaboratorystageIII目录1绪论.........................................................................................................................11.1综述.....................................................................................................................11.2题目背景.............................................................................................................11.3研究意义.............................................................................................................11.4国内外相关研究情况.........................................................................................11.5主要研究内容.....................................................................................................22液压系统的设计分析........................................................................................32.1液压系统组成.....................................................................................................32.2系统的设计要求及流程.....................................................................................32.3回路原理的设计.................................................................................................42.3.1平衡回路......................................................................................................42.3.2回路中个元件的作用..................................................................................42.3.3采用液控单向阀设计的平衡回路..............................................................42.4工况分析.............................................................................................................52.5系统方案设计.....................................................................................................53液压缸的设计......................................................................................................63.1预选系统设计压力.............................................................................................63.2液压缸主要结构尺寸.........................................................................................63.2.1液压缸内径D和活塞杆直径d的确定.....................................................63.3液压缸的结构设计.............................................................................................93.3.1缸体与缸盖的连接形式..............................................................................93.3.2活塞杆与活塞的连接结构........................................................................103.3.3活塞杆导向部分的结构............................................................................103.3.4活塞及活塞杆处密封圈的选用................................................................113.3.5液压缸的安装连接结构............................................................................114液压站的设计....................................................................................................124.1液压泵装置.......................................................................................................124.1.1液压泵设计选型........................................................................................124.2液压油箱的设计...............................................................................................144.2.1液压油箱有效容积的确定........................................................................144.2.2液压油箱的外形尺寸................................................................................154.2.3液压油箱组件结构设计............................................................................15IV4.3液压控制装置...................................................................................................165液压辅件的选择................................................................................................185.1油管...................................................................................................................185.1.1油管的布局要求........................................................................................185.1.2油管的选用计算........................................................................................185.2管接头...............................................................................................................195.3液压油...............................................................................................................195.4实验台结构设计...............................................................................................205.4.1实验台组件台面设计................................................................................205.4.2安装面板设计............................................................................................206液压系统的性能验算......................................................................................216.1压力损失的验算...............................................................................................216.1.1工作进给时进油路压力损失....................................................................216.1.2工作进给时回油路压力损失....................................................................226.2系统温升的验算...............................................................................................227液压系统的安装调试与维护........................................................................247.1液压系统的安装...............................................................................................247.1.1液压元件的检查........................................................................................247.1.2液压元件和管道的安装............................................................................247.2液压站的使用与检查.......................................................................................257.2.1使用注意事项............................................................................................257.2.2操作方法....................................................................................................257.2.3检查............................................................................................................258总结.......................................................................................................................26致谢.......................................................................................................................27参考文献...................................................................................................................28

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