PAGEII摘要本设计主要以小型折叠式高空作业车上、下臂结构为研究对象，对上、下臂进行结构和该车上的液压系统进行设计。主要分两部分进行阐述，第一部分：根据高空作业车的最大作业高度10米，在满足作业高度的前提下，进行高空作业臂的结构设计：首先根据工作载荷使用要求选择作业臂材料的类型；其次根据最大作业高度确定上、下臂的长度；再经过受力分析利用强度来确定臂的截面尺寸及油缸的铰接位置；进而校核强度、刚度、稳定性，查看作业臂的尺寸是否符合要求。对施加均布载荷和约束，进行结构的强度和刚度分析，确定危险截面或危险点的应力分布及变形。最后画出作业臂总装图及上、下臂零件图。第二部分：液压控制部分主要是指控制上下臂变幅运动的液压缸。文中详细记录了高空作业机构上臂液压缸和下臂液压缸的设计过程。在确定液压系统元件参数的基础上，完成了液压传动系统的设计计算，并作出液压系图。关键词高空作业车；结构设计；液压传动系统设计；液压缸AbstractInthispaper,to"high-altitudevehicles",underthearmtostudythestructureoftheupperandlowerarmtothevehiclestructureandthedesignofthehydraulicsystem.Mainlyconductedintwopartson,high-altitudevehiclesunderoneofthelargest10metershighdegreeofoperating,tomeetthehighdegreeofoperatingunderthepremiseofahigh-altitudeoperationsarmofthestructuraldesign:First,theuseofoperatingarmaskedtochoosethetypeofmaterialandsecondlyinaccordancewiththelargestOperatinghighlydetermined,underthearmlength;anotheruseofforceanalysistodeterminethestrengthofthearmsectionsizeandlocationofthefueltankofthehinged;furtherstrength,stiffness,thestabilityofcheckingtoseewhetherthesizeoftheoperatingarmtomeettherequirements.Toimposeuniformloadingandconstraints,structuralstrengthandstiffnessanalysis,riskordangerpointcross-sectionofthestressanddeformation.Finallydrawoperatingarmandhand,armpartsundertheplans.AndhydrauliccontrolofthemainlyreferstocontrolthemovementfromtoptobottomarmChangehydrauliccylinders.Inadetailedrecordoftheagenciesoperatingathighaltitudeupperarmhydrauliccylindersandhydrauliccylindersunderthearmofthedesignprocess.Indeterminingtheparametersofthehydraulicsystemcomponents,basedonthecompletionofthehydraulicsystemdesignandcalculation.Keywordshigh-altitudevehiclesstructuraldesignhydraulicsystemdesignhydrauliccylinders目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc202267359"第1章绪论PAGEREF_Toc202267359\h1HYPERLINK\l"_Toc202267360"1.1高空作业车的概况及其发展方向PAGEREF_Toc202267360\h1HYPERLINK\l"_Toc202267361"1.2高空作业车的组成PAGEREF_Toc202267361\h1HYPERLINK\l"_Toc202