搜索
l密级：学号：本科生毕业（设计）论文全液压升降机的设计系别：专业：班级：学生姓名：指导老师：完成日期：摘要在日常的生产活动中，往往需要对较重的物件进行高低方向往返运输，同时还要满足快速、准确、安全的要求，这需要液压升降机来完成工作。本论文介绍了液压升降机简要设计过程。通过分析升降机结构形式和运动机理得到升降机设计结构，详细解释运动过程，并对支架进行优化选择。针对升降机所需动力分析液压系统总体方案并自主设计液压缸体结构，从标准件选择液压元件及其连接形式，最终设计结果为双单叉开式液压系统升降机。本液压升降机系统结构简单，能有效减少机械能量损失，同时零件以标准件为主，方便维修更换且成本较为低廉，整机设计实现简易、实用、低成本设计目标。本液压升降机可以对2500kg货物实行1.5m的举升，可用于门面装饰、仓库货运、市政园林等场合。关键字：升降机；支架；液压系统；执行元件AbstractIndailyproductionactivities,aheavierneedstobehighandlowround-triptransportation,whilstconformtothedemandsofhigh-speed,accurate,secure.Thehydraulicliftisrequiredtocompletethework.Thethesisbrieflydescribesthedesignprocessofhydrauliclift.Byanalyzingthestructuralformandmovingmechanismoftheelevatorgetthedesignframeworkandexplainthecampaignprocessindetail,tooptimizethebracketselection.Analysispowerneededtolifttoformulateoverallplananddesignofhydraulicsystemofhydrauliccylinderstructure,andselectfromthestandardformofhydrauliccomponentsandtheirconnections.Resultsoffinaldesignforopen-typehydraulicsystemofdoublesingleforklift.Thehydraulicliftsystemstructureissimplewhichcaneffectivelyreducethemechanicalenergyloss.Atthesametime,themainlypartsissomestandardpartswhichconformeasymaintenancereplacementandlowcostly.Thisdesignenablessimple,practical,lowcostdesigngoals.Thehydrauliclifttomovegoodsto2500Kgto1.5mhigh.Itcanbeusedforfacadedecoration,storagetransportation,municipalgardens,andotheroccasions.Keywords:Elevator;Bracket;HydraulicPressureSystem;Actuatorl目录第一章绪论........................................................................................................................................31.1选题目的意义.............................................................................................................................31.1.1全液压升降机意义..........................................................................................................31.1.2全液压升降机设计要求..................................................................................................31.1.3解决的问题......................................................................................................................31.2液压升降机在国内外的发展状况.............................................................................................41.3主要研究内容.............................................................................................................................41.4本章小结....................................................................................................................................4第二章液压升降机总体分析...............................................................................................................52.1升降机结构形式和运动机理.....................................................................................................52.1.1机械结构形式..................................................................................................................52.1.2升降机的运动机理..........................................................................................................52.2液压系统方案的选择.................................................................................................................62.2.1油路循环方式的分析和选择..........................................................................................62.2.2开式系统油路组合方式的分析选择..............................................................................72.2.3调速方案的选择..............................................................................................................82.2.4液压系统原理图的确定..................................................................................................82.3本章小结....................................................................................................................................8第三章升降机机械结构的设计...........................................................................................................93.1升降机机械结构的设计.............................................................................................................93.1.1升降机结构参数的确定..................................................................................................93.1.2升降机机械结构计算......................................................................................................93.2升降机支架和上顶板结构的确定...........................................................................................123.2.1上顶板结构和强度校核................................................................................................123.2.2强度校核........................................................................................................................143.2.3支架的结构....................................................................................................................193.3.4升降机底座的设计........................................................................................................21第四章升降机液压系统的设计.........................................................................................................224.1执行元件速度和载荷...............................................................................................................224.1.1