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钻削动力头液压系统设计论文[带图纸].DOC

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钻削动力头液压系统设计论文[带图纸].DOC

西安文理学院机械电子工程系本科毕业设计(论文)题目钻削动力头液压系统设计专业班级08级机械设计制造及其自动化2班学号08102080235学生姓名王晓海指导教师周毓明设计所在单位西安文理学院钻削动力头液压系统设计摘要动力头也称动力刀座指的是安装在动力刀塔上可由液压系统驱动的刀座。伴随着加工件的日益复杂化、精度等级以及加工效率的提高,多轴向、高转速成为工具机必备的条件,除了加工中心机走向机能复合化外,车床方面已由早期的卧式车床开发出许多新的加工形态,例如钻削床、立式车床、倒立车床、以及车铣复合机种,以顺应新时代加工方式的需求。其中钻削新概念复合机无疑是一项新技术结合的工具机杰作,最大的优点在于可轻易地在同一机台上做复杂零件的加工,可同时进行车削、钻孔、攻牙、端面切槽、侧面切槽、侧面铣削、角度钻孔、曲线铣削等等。可由一台机床完成一个零件的所有加工流程,大大降低上下料换机台加工的时间。在新时代车铣复合机中都必须搭配动力刀塔才能具备车铣复合的功能,因此一款功能性佳、精度高的C轴动力刀塔,将使新时代车铣复合机更臻完善。还阐述了动力头液压技术是机械设备中发展最快的技术之一。随着科技步伐的加快,液压技术在各个领域中得到广泛应用。液压技术己成为主机设备中最关键的部分之一。钻削动力头液压系统设计,除了满足在性能方面规定要求外,还必须符合体积小,重量轻,工作可靠,使用和维修方便等一些公认的普通设计原则。液压系统的设计主要是根据已知条件,来确定液压工作方案、液压流量、压力和液压泵以及其他元件的设计。关键词动力头液压系统钻削加工TheDesignofPowerheadHydraulicSystemAbstractThemainlyexpoundsthesurfacegrinderworkbenchhydraulicsystem,hydraulictechnologyismechanicalequipmentthefastestdevelopingtechnicalone.Alongwiththescienceandtechnology,speedupthepaceofhydraulictechnologyineachfieldofwidelyused.Hydraulictechnologyhasbecomethemostkeyhostdevicesoneofthepart.Thisflatgrinderworkbenchhydraulicsystemdesign,ameetonperformancerequirementsoutside,stillmustcomplywithsmallvolume,lightweight,reliablework,useandconvenientmaintenanceandsomeotherrecognizedthecommondesignprinciples.Hydraulicsystemisdesignedaccordingtotheknowncondition,todeterminethehydraulicpressureworkingscheme,hydraulicflowrate,pressureandhydraulicpumpandothercomponentsdesign.Completethewholedesignprocessneedofwork.Designersshouldsetupthecorrectdesignideas,tryinghardtograsptheadvancedknowledgeofscienceandtechnologyandscientificdialecticalthinkingapproach.Atthesametime,butmustadheretolinktheorywithpractice,andinpracticecontinuouslyreviewandaccumulatedesignexperience,torelevantareasofscientificandtechnicalworkersandengagedintheproductionpracticeworkerslearning,theconstantdevelopmentandinnovation,canbuildfinishtomechanicaldesigntask.KeywordsPowerheadHydraulicsystemDrillingoperation目录第1页目录第一章钻削动力头及液压传动的发展概况和应用....................................................................................11.1钻削动力头及液压传动的发展概况...................................................................................................11.2液压传动...............................................................................................................................................21.2.1液压传动的优点...........................................................................................................................21.2.2液压系统的缺点...........................................................................................................................2第二章液压传动的工作原理和组成............................................................................................................32.1工作原理...............................................................................................................................................32.2液压系统的基本组成...........................................................................................................................4第三章液压系统参数设计............................................................................................................................53.1负载分析...............................................................................................................................................53.2液压缸参数计算...................................................................................................................................53.2.1初选液压缸工作压力...................................................................................................................53.2.2确定液压缸的主要结构尺寸.......................................................................................................63.3液压泵参数计算...................................................................................................................................63.3.1确定液压泵最大工作压力...........................................................................................................63.3.2确定液压泵的最大流量...............................................................................................................63.4电动机的选择.......................................................................................................................................7第四章液压元件和装置的选择....................................................................................................................84.1液压阀的选择.......................................................................................................................................84.2油管的选择...........................................................................................................................................84.3油箱容积的初步确定和油液的选择...................................................................................................94.3.1油箱容积确定...............................................................................................................................94.3.2油液选择.......................................................................................................................................94.4滤油器的选用.....................................................................................................................................104.5密封件选用.........................................................................................................................................10第五章验算液压系统性能...........................................................................................................................115.1系统压力损失的验算..........................................................................................................................115.2液压系统发热和温升验算.................................................................................................................13第六章液压工作站的设计..........................................................................................................................146.1确定液压站的结构类型方案.............................................................................................................146.1.1分散配置型液压装置.................................................................................................................14目录第2页6.1.2集中配置型液压装置.................................................................................................................146.1.3确定液压站的方案.....................................................................................................................146.2液压控制装置(液压阀站的集成).................................................................................................146.2.1有管集成.....................................................................................................................................156.2.2无管集成.....................................................................................................................................156.2.3确定液压控制装置.....................................................................................................................156.3液压动力源装置(液压泵站)的设计.............................................................................................166.3.1液压泵组布置方式的确定.........................................................................................................166.3.2液压油箱的设计.........................................................................................................................186.4液压泵组的结构设计.........................................................................................................................236.5液压站的结构总成.............................................................................................................................246.6液压站总图的设计与绘制.................................................................................................................24结束语............................................................................................................................................................26致谢................................................................................................................................................................27参考文献........................................................................................................................................................28附录...................................................................................................................................错误未定义书签。

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