3935-加工垂直孔和水平孔的专用组合机床

专用组合机床液压系统设计说明书第一章.................................................11.1前言................................................11.2课题的意义、背景及现状................................11.3液压系统在机械行业中的应用..............................21.4液压系统的基本组成......................................3第二章确定液压系统方案，拟定液压系统图.......................42.1调速方案.............................................42.2换向，换节方式........................................42.2.1泵源的选择...........................................52.3液压系统的组合............................................62.3.1运动和动力参数.......................................62.4绘制液压系统图............................................7第三章液压滑台的液压动力系统设计..............................83.1运动负载分析计算.........................................93.2确定执行元件类型及基本参数..............................103.3确定液压控制方案........................................113.4确定液压控制元件........................................123.5校核...................................................13第四章液压系统的计算和元件选型............................144.1选择油泵...............................................154.2选择电动机.............................................164.3选择控制阀.............................................174.4确定油管尺寸...........................................184.5确定油箱容量...........................................194.6液压缸内径D和活塞杆直径d的确定........................204.7液压缸实际所需流量计算..................................214.8确定液压泵规格和驱动电机功率............................214.9阀类元件及辅助元件的选择................................234.10管道尺寸的确定........................................244.11液压系统的验算........................................264.12系统温升的验算.........................................26第五章动力滑台油缸的结构设计...............................265.1动力滑台油缸的主要尺寸...................................285.2液压元件参数的计算及选择.................................295.3液压阀的选择.............................................31个人总结..................................................32参考文献...............................................331.1前言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。本文根液压系统的用途﹑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。液压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。目前，我国的液压件已从低压到高压形成系列，并生产出许多新型元件，如插装式锥阀、电液比例阀、电液伺服阀、电业数字控制阀等。我国机械工业在认真消化、推广国外引进的先进液压技术的同时，大力研制、开发国产液压件新产品，加强产品质量可靠性和新技术应用的研究，积极采用国际标准，合理调整产品结构，对一些性能差而且不符合国家标准的液压件产品，采用逐步淘汰的措施。由此可见，随着科学技术的迅速发展，液压技术将获得进一步发展，在各种机械设备上的应用将更加广泛。关键词：液压系统过载保护压缩成型液压系统ABSTRACTAsoneofthemodernmachineryequipmentransmissionandcontrolimportanttechnicalmeans,hydraulictechnologyinthefieldofnationaleconomyhasbeenwidelyused.Comparedwithothertransmissioncontroltechnology,hydraulictechnologyhashighenergydensity,flexibleandconvenientconfiguration,largespeedrange,rapidandsmoothworkability,easytobecontrolledandoverloadprotection,easilyrintegration,systemintegrationdesign,easymaintenanceinmanufacturingoperationandothersignificantadvantagesntechnologywhichmakeitbecomethebasictechnologyofmodernmechanicalengineeringandthebasictechnologyofmoderncontrolengineering.Thehydraulicpressandpressuremachineisthemainequipmentformoldingplasticinjectionandrepressingmaterialformation,suchasstamping,bending,,metalsheetdrawing,etc.Alsoitcanbeengagedintheadjustment,themountingindentation,thegrindingwheelformation,theswagingmetalpartsformation,theplasticproductsandthepowderproductssuppressedformation.includingthechoiceofmotor,acrankconnectingrodtransmissiondesign,shaftdesign,bearingdesign,selectionofthekeyandthedesignoftheframe,tryingtothroughthedesign,sothatthetransportmechanismofwalnutissimple,andcanimprovetheefficiency,andalsocanreducetheenergyconsumption.Vibratingconveyeristheeccentricwheeldrivesaconnectingrodtogeneratecentrifugalforce,thematerialscanbeseparated.Thispaperisdividedintoseveralpartstoillustratethedesignprocess,soIdidaboutgraduationdesignwalnutvibrationconveyingequipment.Animportantcomponentofvibratingconveyoriswalnutprocessingprocessmentionedinthisdesign.Thisarticleaccordingtotheusage,characteristicsandrequirementsofthepurposesoftheYB32-150typehydraulicpressurepressmachineusesthebasicprincipleofhydraulicransmission,drawsupareasonablehydraulicsystemandundergoesthenecessarycalculationtodeterminetheparametersofhydraulicsystemwhichdeterminetochoosehydrauliccomponentsandsystemstructureofspecification.ThehydraulicsystemofYB32-150hydraulicpressurepressMachineisrectangulararrangement.its'externaltechnicalmeans,hydraulictechnologyinthefieldofnationaleconomyhasbeenwidelyused.Comparedwithothertransmissioncontroltechnology,hydraulictechnologyhashighenergydensity,flexibleandconvenientconfiguration,largespeedrange,rapidandsmoothworkability,easytobecontrolledandoverloadprotection,easilyrealizedintegration,systemintegrationdesign,easymaintenanceinmanufacturingoperationandothersappearanceisnewandoriginalbeautiful,thedrivingforcesystemadoptshydraulicpress