双铰接剪叉式液压升降台的研究与设计VIP免费

i双铰接剪叉式液压升降台的研究与设计摘要：液压升降工作台具有载重量大，结构坚固，升降平稳，操作简单，维护方便等特点。适用于工厂，仓库，车站，搬运的场所等。通过对双铰接剪叉式升降平台机构的研究，进行相关位置参数和动力参数的计算，从而分析出升降平台机构设计时所要注意的问题。并根据要求选择合适的标准的液压元件，绘制出升降台液压系统的液压原理图及其电气原理图，通过对叉杆的各项受力分析确定台板与叉杆的载荷要求，最终完成剪叉式液压升降台的设计要求。关键字：升降台剪叉式液压DoublehingedscissorhydraulicliftplatformofresearchanddesignAbstract：Hydraulicelevatorwithloadforthebig,firmstructure,smoothlift,simpleoperation,convenientmaintenanceetc.Characteristics.Applytofactory,warehouse,thestation,handlingplaces,etc.Throughtothedoublehingedscissorliftplatformagencystudies,relativepositionparametersandthecomputationofdynamicparameters,andchoosetheappropriatestandardsaccordingtotherequirementsofthehydrauliccomponents,renderingtheliftplatformhydraulicsystemofhydraulicprinciplediagramanditselectricaldiagram,throughtotheforkofthemechanicalanalysistodeterminethestemofthestemandforkbedplateloadrequirements,finallycompletescissorhydraulicliftplatformdesignrequirements.KeyWords:Liftplatformscissorhydraulicpressureii目录前言.....................................................................................................................1第一章液压系统的概述......................................................................................21.1液压系统的简介........................................................................................21.2液压传动原理............................................................................................21.3液压元件的分类........................................................................................2第二章双铰接剪叉式升降台结构分析与设计..................................................52.1双铰接剪叉式升降平台结构形式............................................................52.2双铰接剪叉式升降平台机构的位置参数计算........................................62.3双铰接剪叉式升降平台机构的运动参数计算........................................72.4双铰接剪叉式升降平台机构的动力参数计算........................................82.5剪叉式升降平台机构设计时应注意的问题.........................................10第三章双铰接剪叉式升降台液压、电气系统设计........................................113.1液压系统原理图绘制..............................................................................113.2液压系统主要元件选择.........................................................................123.2.1齿轮油泵选择...............................................................................123.2.2液压缸选择...................................................................................123.3.3压力表选择...................................................................................133.3双铰接剪叉式升降台电气系统设计......................................................133.3.1电气系统原理图设计...................................................................133.3.2电气系统控制过程.......................................................................14第四章台板与叉杆的设计计算........................................................................154.1确定叉杆的结构材料及尺寸..................................................................154.2横轴的选取...