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液压传动课程设计摘要1摘要目前，液压系统被广泛应用在机械、建筑、航空等领域中，成为一种新型的动力源。由于液压元件的制造精度越来越高，再配合电信号的控制，使液压系统在换向方面可以达到较高的频率。不管是在重型机械和精密设备上都能满足要求。液压系统本身有较多的优点，比如：在同等的体积下，液压装置产生的动力更大；由于它的质量和惯性小、反映快，使液压装置工作比较平稳；能够实现无级调速，特别是在运动中进行调速；液压装置自身能实现过载保护；实现直线运动远比机械传动简单。但是液压传动对温度的变化比较敏感，不宜在很高或很低的温度下工作。液压系统应用在机床上，实现对工作台和夹紧工件的循环控制起着重要的作用。对铣削类组合机床，运用液压来控制运动循环，结构简单，所占空间小，而且能满足较大的切削负载要求。关键词：液压系统，组合机床，运用液压传动课程设计摘要2PickAtpresent,hydraulicsystemarewidelyusedinmachinery,building,aviation,etc,becomeanewkindofpowersupply.Duetothemanufacturingprecisionofhydrauliccomponents,thenthecontrolsignal,hydraulicsystemcanachievehigherinreversingthefrequency.Whetherinheavymachineryandequipmentcanmeettherequirements.Hydraulicsystemitselfmoreadvantages,suchas:inthesamevolumeofhydraulicdevice,morepower,Becauseofitsqualityandinertia,reflectthefast,makinghydraulicequipmentworksmoothly,Canrealizesteplessspeedregulation,especiallyinthemovementofspeed,Hydraulicdeviceitselfcanachieveoverloadprotection,Realizinglinearmotionthansimplemechanicaltransmission.Butthehydraulictransmissionismoresensitivetotemperaturechange,notinhighorlowtemperatures.Hydraulicsystemusedinmachinetools,andclampingworkpieceofworkbenchcycleofcontrolandplaysanimportantrole.Formillingmachine,combinationofusinghydrauliccontrolmovementcycle,simplestructure,smallspaceoccupiedby,andcansatisfytherequirementofcuttingload.Keywords:hydraulicsystem,combinationmachinetoolsandapplication液压传动课程设计方案确定3题目题目五：组合机床液压系统设计试设计立式组合机床的液压系统，已知切削负载为30000N，滑台工作速度为50mm/min,快进和快退速度为6m/min，滑台（包括动力头）的重量为132000N,往复运动的加速（减速）的时间为t=0.05S,滑台用平面导轨，静摩擦系数fs=0.2，动摩擦系数fd=0.1，快进行程为100mm,工进行程为50mm.液压传动课程设计方案确定4目录摘要················································································································1PICK·················································································································2题目···················································································································31方案的确定········································································································61.1整体性分析··································································································61.2拟定方案·····································································································61.3比较方案并确定方案······················································································62工况分析········································································································72.1运动参数分析·······························································································72.2动力参数分析·······························································································72.3负载图和速度图的绘制···················································································83液压缸尺寸和所需流量························································································93.1液压缸尺寸计算····························································································93.1.1工作压力的确定：·················································································································93.1.2计算液压缸尺寸：·················································································································93.1.3缸径、杆径取标准值后的有效工作面积：·········································································93.2确定液压缸所需流量······················································································93.3夹紧缸的有效面积、工作压力和流量确定···························································103.3.1确定夹紧缸的工作压力：···································································································103.3.2计算夹紧缸的流量：···········································································································104拟定液压系统图································································································124.1选择液压系统图···························································································124.1.1调速回路·······························································································································124.1.2换向回路和卸荷回路··········································································································124.1.3快速运动回路······················································································································124.1.4压力控制回路······················································································································134.2液压系统合成······························································································145选择液压元件和确定辅助装置············································································155.1选择液压泵·································································································155.2电动机的选择······························································································155.3选择阀类元件····················································································