剪叉式液压升降机.pdf

摘要剪叉式升降平台作为作为一种平面升降机械，主要用于抬升重物，在很多领域都有着广泛的用途，如用作货场装卸货物的升降台、各种工程中操作人员的工作平台等等。剪叉式液压升降平台是一种结构比拟简单、举升力大、升降平稳、噪音低、操作方便、维修简便，并可以停留在升降范围内的任意位置上的一种广泛应用的升降平台。它目前广泛的应用在各行各业，是一种货物装卸流通领域中较为理想合理的升降平台。液压系统是剪叉式液压升降平台的驱动和控制局部，通过液压缸驱动剪叉改变幅度，完成升降任务，通过平衡阀、调速阀和溢流阀的控制作用，完成调速、保压、制动、平衡的功能。本次设计主要进行了升降平台功能特点分析求解，升降平台总体布局方案和主要性能参数确定，各机构和各局部的结构方案设计，主要控制方案设计，上、下台架机构、剪叉机构设计计算，整机稳定性、可靠性验算。该课题属于横向课题。为保证仓储区域属于易燃、易爆等场所。要求平安、可靠，自动化程度高。为保证仓储区域管理人员的人身平安和提高升降物品的平安性，采用无人化作业方式，平安装置及各种电器保护装置齐全、可靠、，便于操作和维修。仅供学习参考关键词：液压升降平台；剪叉；液压缸；上平台；底座ABSTRACTScissors-styletake-offandlandingplatformasaplanemovementsmachinery,mainlyusedforliftingheavyobjects,inmanyfieldshaveawiderangeofuses,suchasloadingandunloadingcargofreightyardfortheliftingplatform,operatinginvariousprojectsoftheworkplatform,andsoon.Scissorshydraulicliftingplatformisarelativelysimplestructure,theliftingforce,asmoothtake-offandlanding,lownoise,easytooperate,maintenanceissimple,andcanremaininthetake-offandlandinganywherewithinthescopeofawiderapplicationofthetake-offandlandingplatform.Itiscurrentlywidelyusedinvarioustradesandindustries,isacargoflowintheareamoredesirableandreasonabletake-offandlandingplatform.Hydraulicsystemisthescissors-tapehydraulicliftingplatformforthedriveandcontrolofthehydrauliccylindersdrivenliftingtasks,throughbalancevalve,reliefvalveandthegovernorvalvecontrolthegovernorcompleted,Packing,brakingand仅供学习参考balancefunction.Thedesignforthemainfeaturesofthetake-offandlandingplatformforanalysis,thetake-offandlandingplatformforthegenerallayoutprogramsandidentifykeyperformanceparameters,agenciesandpartsofthestructureoftheprogramdesign,themaincontrolprogramdesign,on-stepdown,scissorsmechanismdesignandcalculationWithtwostability,reliabilitychecking.Thetopicofcross-cuttingissues.Thetake-offandlandingplatformforregionaloperationsareflammable,explosive,andotherplaces.Requiresafe,reliablehighdegreeofautomation.Inordertoensureregionalwarehousemanagementandimprovethepersonalsafetyofmovementsofgoodssafety,useofunmannedoperations,securityinstallations