液压系统毕业设计

XXXXXXX学院毕业设计（论文）题目压力机的液压系统设计系别专业XXXXXXXXXXXXXXX班级XXXX学号姓名XX指导教师XXXXXX完成时间XX年XX月XX日评定成绩教务处制年月日小型压力机的液压系统设计摘要作为现代机械设备实现传动与控制的重要技术手段，液压技术在国民经济各领域得到了广泛的应用。与其他传动控制技术相比，液压技术具有能量密度高﹑配置灵活方便﹑调速范围大﹑工作平稳且快速性好﹑易于控制并过载保护﹑易于实现自动化和机电液一体化整合﹑系统设计制造和使用维护方便等多种显著的技术优势，因而使其成为现代机械工程的基本技术构成和现代控制工程的基本技术要素。液压压力机是压缩成型和压注成型的主要设备，适用于可塑性材料的压制工艺。如冲压、弯曲、翻边、薄板拉伸等。也可以从事校正、压装、砂轮成型、冷挤金属零件成型、塑料制品及粉末制品的压制成型。本文根据小型压力机的用途﹑特点和要求，利用液压传动的基本原理，拟定出合理的液压系统图，再经过必要的计算来确定液压系统的参数，然后按照这些参数来选用液压元件的规格和进行系统的结构设计。小型压力机的液压系统呈长方形布置，外形新颖美观，动力系统采用液压系统，结构简单、紧凑、动作灵敏可靠。该机并设有脚踏开关，可实现半自动工艺动作的循环。HydraulicsystemdesignofsmallpressesABSTRACTAsoneofthemodernmachineryequipmenttransmissionandcontrolimportanttechnicalmeans,hydraulictechnologyinthefieldofnationaleconomyhasbeenwidelyused.Comparedwithothertransmissioncontroltechnology,hydraulictechnologyhashighenergydensity,flexibleandconvenientconfiguration,largespeedrange,rapidandsmoothworkability,easytobecontrolledandoverloadprotection,easilyrealizedautomationandelectromechanicalintegration,systemintegrationdesign,easymaintenanceinmanufacturingoperationandothersignificantadvantagesintechnology,whichmakeitbecomethebasictechnologyofmodernmechanicalengineeringandthebasictechnologyofmoderncontrolengineering.Thehydraulicpressandpressuremachineisthemainequipmentformoldingplasticinjectionandrepressingmaterialformation,suchasstamping,bending,flanging,metalsheetdrawing,etc.Alsoitcanbeengagedintheadjustment,themountingindentation,thegrindingwheelformation,theswagingmetalpartsformation,theplasticproductsandthepowderproductssuppressedformation.Thisarticleaccordingtotheusage,characteristicsandrequirementsofthepurposesoftheYB32-150typehydraulicpressurepressmachineusesthebasicprincipleofhydraulictransmission,drawsupareasonablehydraulicsystemandundergoesthenecessarycalculationtodeterminetheparametersofhydraulicsystemwhichdeterminetochoosehydrauliccomponentsandsystemstructureofthespecification.ThehydraulicsystemofYB32-150hydraulicpressurepressMachineisrectangulararrangement.its'externalappearanceisnewandoriginalbeautiful,thedrivingforcesystemadoptshydraulicpressuresystemthatmakesthestructuresimpleandcompact,theactionquickandreliable.Thismachineisequippedwiththefootswitchwhichcanrealizethesemiautomaticcraftmovementcirculation.目录第一章前言................................................11.1液压传动的发展概况.........................................................61.2液压传动在机械行业中的应用.................................................61.3液压机的发展及工艺特点.....................................................71.4液压系统的基本组成.........................................................8第二章小型压力机的液压系统原理设计..........................92.1液压压力机的基本结构.......................................................92.2工况分析..................................................................102.2.1负载循环图和速度循环图的绘制...................................................112．3拟定液压系统原理图.......................................................112.3.1确定供油方式..................................................................112.3.2自动补油保压回路的设计.........................................................112.3.3释压回路的设计................................................................122.4液压系统图的总体设计......................................................132.4.1主缸运动工作循环...............................................................132.4.2顶出缸运动工作循环.............................................................14第三章液压系统的计算和元件选型...........................153．1确定液压缸主要参数.......................................................153.1.1液压缸内径D和活塞杆直径d的确定...............................................153.1.2液压缸实际所需流量计算.........................................................163．2液压元件的选择...........................................................163．2.1确定液压泵规格和驱动电机功率..................................................163.2.2阀类元件及辅助元件的选择.......................................................173.2.3管道尺寸的确定................................................................193.3液压系统的验算............................................................213.3.1系统温升的验算................................................................21第四章液压缸的结构设计...................................234.1液压缸主要尺寸的确定......................................................234.2液压缸的结构设计..........................................................25第五章液压集成油路的设计.................................275.1液压油路板的结构设计......................................................275.2液压集成块结构与设计......................................................285.2.1液压集成回路设计...............................................................285.2.2液压集成块及其设计.............................................................28第六章液压站结构设计.....................................306．1液压站的结构型式.........................................................306．2液压泵的安装方式.........................................................306.3液压油箱的设计............................................................306.3.1液压油箱有效容积的确定........................................................306.3.2液压油箱的外形尺寸设计.......................................................316.3.3液压油箱的结构设计....