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I本科毕业设计论文题目LZG30单头螺杆型干式真空泵的建模与仿真系别机电信息系专业机械设计制造及其自动化班级姓名学号导师2013年05月06日IILZG30单头螺杆干式真空泵的建模与仿真摘要本文的研究对象,螺杆型干式真空泵,吸入腔没有任何工作液,保证了空间用泵无污染没有油蒸汽排放,保证清洁的外部环境。由于转子齿面之间有间隙,因而可以抽除含有灰尘或腐蚀性的有毒气体。本课题主要集中在以下几个方面基本原理的干式螺杆真空泵,阴阳转子螺杆型线的研究,螺旋型面线是单边等螺距型线,演绎数学的计算,建立几何模型面型线方程推导,然后螺旋齿面方程推导。几何特征研究等。设计完成后应用solidworks软件做运动仿真对真空泵转子做三维建模,并且模拟转子运动展示其工作过程.关键词干式螺杆真空泵转子型线三维建模运动仿真IIIModelingandSimulationofLGZ30singlescrewdryvacuumpumpAbstractTheresearchobjectofthispaper,Dryscrewvacuumpump,Thesuctionchamberwithnoworkingfluid,ensurethespaceispumpedfrompollutionNooilvaporemissions,guaranteethecleanoftheexternalenvironment.DuetothegapsbetweentherotortoothsurfaceofYinandYang,thusitcanbepumpedinadditiontocontainingdust,orcorrosive,poisonousgases.Theauthorstudiesmainlyfocusonthefollowingaspectsthebasicprinciplesofdryscrewvacuumpump.YinandYangscrewtypelineofresearch.Screwtypefacelinemadebilateralsymmetriccirculararcline,deducethemathematicalexpressionsofmeshingprinciple,establishgeometricmodelfacetypelineequationisdeduced,andthenscrewtoothsurfaceequationisdeduced.Geometriccharacteristicsresearch,etc.AfterthedesigniscompletedusingSolidWorkssoftwaretodomotionsimulationtodo3Dmodelingofvacuumpumprotor.Andthesimulationofrotormotiondisplaytheirworks.KeywordsdryscrewvacuumpumprotortypelineThreedimensionalmodelingMotionsimulationIV目录绪论.........................................................................................................................................11螺杆型干式真空泵的概述.......................................................................................21.1课题背景及研究意义...............................................................................................21.2螺杆真空泵在国内外的研究现状与发展方向..................................................41.3论文包括的主要内容...............................................................................................51.4论文的组织结构.........................................................................................................62螺杆干式真空泵转子型线的研究.......................................................................72.1常见转子型线比较....................................................................................................72.2单头等螺距矩形螺纹转子型线.............................................................................82.2.1转子型线要素.............................................................................................82.2.2转子型线设计原则.........................................................................................92.2.3转子螺旋齿面方程.......................................................................................103螺杆干式真空泵工作原理.....................................................................................123.1吸气过程....................................................................................................................123.2压缩过程....................................................................................................................123.3排气过程....................................................................................................................134螺杆干式真空泵设计计算.....................................................................................144.1螺杆基本尺寸............................................................................................................144.2排气量..........................................................................................................................164.2.1理论排气量....................................................................................................164.2.2实际排气量....................................................................................................174.3进排气孔口.................................................................................................................18V4.3.1轴向进气口....................................................................................................184.3.2轴向排气口....................................................................................................194.4极限真空度、功率及冷却水量............................................................................194.5轴的强度计算............................................................................................................204.6同步齿轮的设计计算...............................................................................................204.6.1齿轮尺寸计算................................................................................................214.6.2齿轮强度校核................................................................................................215单头螺杆干式真空泵的应用................................................................................225.1应用范围....................................................................................................................225.2抽气原理与结构.......................................................................................................226三维建模与运动仿真..................................................................................................236.1SolidWorks介绍.....................................................................................................236.2转子三维建模...........................................................................................................246.3转子运动仿真...........................................................................................................26结论.......................................................................................................................................27参考文献..................................................................................................................................28致谢.......................................................................................................................................29
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