液压折弯机设计说明书.doc -- 8 元

黑龙江工程学院本科生毕业设计I摘要折弯机属于锻压机械中的一种，主要作用就是金属加工行业。产品广泛适用于轻工、航空、船舶、电器、不锈钢制品、钢结构建筑及装潢行业。液压传动系统采用压力补偿型柱塞泵供油，回油节流调速，能量利用合理，立式液压缸设有平衡和锁紧措施，工作安全可靠同时以液压缸作为执行元件，夹紧力大，折弯动力也大，系统进行折弯时工作性能好。本次设计主要是通过液压系统的设计对液压传动有了更清楚的认识，对液压系统的组成，液压系统的各部零件的作用有了具体深入的子解。在设计过程中，力求结构紧凑，布局合理，制造简单。关键字液压缸筒活塞杆导轨滚珠丝杆黑龙江工程学院本科生毕业设计IIAbstractThefoldingmachinebelongstoakindofforgingMachinery.ltisamajorroleinthemetalprocessingindustry.Productsarewidelyappliedtolightindustry,aviation,shipping,metallurgy,instruments,electricalappliances,andstainlesssteelproducts,steelstructureconstructionanddecorationindustries.Hydraulicsystemusespistonpumpofpressurecompensationtosupplyoil,theoilreturnthrottlecontrol,rationaluseofenergy.Verticalhydrauliccylinderusesbalanceandlockingmeasures,soitworkssafelyandreliability.Atthesametimehydrauliccylindersastheimplementationofcomponentshavesgreatclampingforceandshearforce.Whensystemshearplatsmaterial,itsperformanceisgood..Thisdesignismainlythroughhydraulicsystemdesignofhydraulicdrivemoreclearunderstandingofthehydraulicsystem,composedofhydraulicsystems,andeachofthepartshaveconcretedeepunderstanding.Inthedesignprocess,itachievesstructurecompactandlayoutrationalandmanufacturesimple.KeywordshydrauliccylinderThepistonrodguideTheballscrew黑龙江工程学院本科生毕业设计III目录摘要...........................................................................................................ⅠAbstract..............................................................Ⅱ第1章绪论........................................................................................................................11.1课题背景...................................................................................................................11.1.1折弯机简介.................................................11.1.2设计内容简介...............................................21.2液压传动的基本知识...............................................................................................21.2.1液压系统的组成.............................................21.2.2液压传动的概念.............................................31.2.3液压系统的优点.............................................4第2章液压系统设计......................................................................................................52.1机器的电气部分........................................................................................................62.2电器箱上的电器元件功能........................................................................................6第3章系统元件设计......................................................................................................73.1液压缸的设计............................................................................................................83.1.1液压折弯机的技术参数（见表3.1）............................83.1.2负载分析和运动分析.........................................83.1.3液压缸主要零部件结构，材料与技术要求.......................93.1.4确定液压缸的结构设计，编制工况图..........................113.1.5液压缸的工作循环中各阶段压力和流量计算（见表3.5）.........163.2液压泵的选择..........................................................................................................183.2.1液压泵的性能参数及计算公式................................183.2.2轴向柱塞泵的工作原理......................................203.2.3轴向柱塞泵的工作要求......................................213.2.4油泵的选择................................................213.3油箱的设计......................................................223.3.1油箱的基本功能...........................................22黑龙江工程学院本科生毕业设计IV3.3.2油箱的种类................................................223.3.3油箱的设计要求及结构......................................233.3.4油箱附件..................................................243.4系统其它元件的选用..............................................253.4.1蓄能器的选用..............................................253.4.2电机的选择................................................25第4章XY方向设计计算..............................................................................................274.1设计任务........................................................274.1.1设计参数..................................................274.1.2方案的分析、比较、论证....................................274.2脉冲当量和传动比的确定..........................................284.2.1脉冲当量的确定............................................284.2.2传动比的确定..............................................284.2.3确定步进电机步距角........................................284.3丝杠的选型及计算................................................294.3.1计算丝杠受力..............................................294.3.2滚珠丝杠螺母副的选型和校核................................294.4导轨的选型及计算................................................344.4.1初选导轨型号..............................................344.4.2计算滚动导轨副的距离额定寿命L............................344.5步进电机的选择..................................................354.5.1传动系统等效转动惯量计算..................................364.5.2所需转动力矩计算..........................................37结论.....................................................41致谢.....................................................42参考文献.................................................42附录.....................................................42