1.25t四支点电动叉车--倾斜机构与液压系统设计

毕业设计报告I1.25t四支点电动叉车倾斜机构与液压系统设计摘要本课题主要是介绍1.25t四支点电动叉车倾斜机构与液压系统设计。通过设计与校核叉车的稳定性、牵引性、制动性、机动性等，汲取小组意见确定了一个合理的方案。于此同时，本文重点设计液压回路：由开式油箱供油，双齿轮泵作为动力元件，油缸作为执行元件，液压控制阀作为控制元件。倾斜机构：通过铰接在外门架上的倾斜油缸活塞杆的伸缩使门架前倾或后倾，完成取货与卸货。设计内容包括倾斜油缸受力分析计算缸径、行程、作用时间以及缸壁、缸体、缸底厚度等；计算校核活塞杆强度与稳定性。。在此基础上完成了电动叉车液压系统与倾斜机构设计以及油路的布置。关键词：四支点电动叉车液压系统倾斜机构毕业设计报告II1.25tfour-pointelectricforklifttiltingmechanismandhydraulicsdesign。AbstractThispaperprimarilypresent1.25tfour-pointelectricforklifttiltingmechanismandhydraulicsdesign。Thoughdesigningandcheckingforklift’sstability,tractiongender,retardgender,maneuverabilityandsoon.Followingtheadvicesofthegroupandidentifyingareasonableoption.Onthesametime,thispaperemphasisondesigninghydrauliccircuit：byopentypetankoilservicing,doublegearedpumpaspowercomponent，oilcylinderasactuator，hydrauliccontrolvalveascontrolcomponent。Tiltingmechanism：throughthemediumofswingjointinclinethepistonrodofoilcylindertopitchorretroversion,andtoachieveparkingordischarginggoods.Designcontentinclude:inclineoilcylinderstressanalytical,calculationofthecylinderdiameter,calculationofthejourneyofthepistonrod,howlongtheoperationtheofoilcylinder,andcasingthethicknessofwall,cylinderbody,cylinderbottom.Figurecheckpistonrodintensityandstabilityupaswell.Onthebasisofupper,finishingelectricforklift’shydraulics,tiltingmechanismdesign,andoilway'arrangementplanaswell。Keywords:forklifttiltingmechanismhydraulics毕业设计报告1目录第一章前言......................................................................................................................................................31.1叉车背景.........................................................................................................................................................31.2叉车发展简况.................................................................................................................................................31.3倾斜机构简介.................................................................................................................................................41.4液压系统简介.................................................................................................................................................5第二章设计方案论证..........................................................................................................................................62.1课题简介与方案设计........................................................................................................................................6关于倾斜油缸的布置方案......................................................................................................................................6第三章平衡重式电动叉车总体估算...................................................................................................................83.1概述....................................................................................................................................................................83.2总体估算............................................................................................................................................................83.2.1确定各部件的构造形式...........................................................................................................83.2.2各部件重量和重心位置的估算，整车自重及重心的确定。......................................................93.2.3稳定性计算...................................................................................................................................103.2.4轮胎选择......................................................................................................................................123.2.5牵引计算......................................................................................................................................123.2.6制动性能计算..............................................................................................................................133.2.7机动性参数确定............................................................................................................................143.2.8关于工作装置功率计算................................................................................................................14第四章液压系统设计计算................................................................................................................................154.1液压系统设计概述..........................................................................................................................................154.2液压系统设计..................................................................................................................................................154.2.1原理图...........................................................................................................................................154.2.2起升油缸最大工作压力及流量....................................................................................................174.2.3求液压系统最大压力1P...............................................................................................................174.2.4液压泵站及液压泵的规格及选用...