蜗杆传动参数化CAD设计

蜗杆传动参数化CAD设计蒋大傻逼I摘要在机械传动中蜗杆传动是重要组成部分，常用的蜗杆传动有：普通圆柱蜗杆传动、圆弧齿蜗杆传动及圆弧面蜗杆传动，用于传递空间交错轴的运动和动力，具有传动比大、传动平稳以及结构尺寸紧凑等优点，在各类机械设备的传动系统中广泛应用。蜗杆传动中的蜗杆计算过程比较复杂，用手工方法进行计算，不仅过程繁琐、效率低，而且容易出错。本文以应用最为广泛的标准蜗杆传动，轴交角90度为例，用Matlab实现对蜗杆蜗轮的参数化设计，可以提高产品开发的效率和质量，为后续进行的有限元分析提供必要的条件。蜗杆的起源十分久远。从古至今它都朝着方便快捷、高效率、高精度方向不断发展。蜗杆传动之所以应用得如此广泛，与其具备高效率、工作可靠、能取得精确的传动比等优点是密不可分的。但在一般的蜗杆传动参数的设计过程中，人们需要查阅蜗杆传动设计类专业的书，来设计中间参数和设计方法等。其中，查阅很多图表并不方便，并且在设计过程中，一些数据的计算会很麻烦。在这个复杂的计算过程中，人的疲劳等因素也会导致计算出错，从而得出误差较大的结果。再次修改比较繁琐，这就使设计费时且效率低。为了解决这些麻烦，人们需要更加方便的工作方法，这便是本次研究题目的主要内容。我此次设计所运用的工具主要是Matlab2013b版本，并运用Matlab工具对标准蜗杆传动的参数。开发出来的设计系统根据输入的已知参数，再结合从电脑上的设计页面中选取一些中间参数，我们一步一步地进行设计，最后终于得出相应蜗杆传动的设计参数。我初次接触Matlab软件，毕业设计课题的内容是在边学习软件边完成。如有不妥之处，敬请批评指正！关键词：蜗杆传动；参数化设计；Matlab2013bIIAbstractWormdriveisanimportantpartofthemechanicaldrive,Commonlyusedordinarycylindricalwormwormdrivegear,arctoothwormgearandwormdrivecircularsurfacefortransmittingspacestaggeredaxismotionandpower,withtransmissionratio,smoothtransmissionandCompactsize,etc.Inthetransmissionofvarioustypesofmachineryandequipmentwidelyused.Thewormdrivewormcalculationprocessiscomplex,calculatedusingthemanualmethod,theprocessisnotonlycumbersome,inefficientanderror-prone.Inthispaper,themostwidelyusedstandardwormdrive,axisangleof90degrees,forexample,usingMatlabtoachievethewormparametricdesign,canimprovetheefficiencyandqualityofproductdevelopment,toprovidethenecessaryconditionsforthesubsequentconductofthefiniteelementanalysis.Wormhasaverylonghistory.Itsgoalshavebeenconvenient,highefficiencyandhighprecisionfromancienttimes.Thedevelopmentofworm’sdirectionowestoitshighefficiency,reliableoperation,andprecisegearratioandsoon.However,inthegeneraldesignprocessofgearedparameters,weneedtofindprofessionalbooksaboutwormtoconsultintermediateparametersanddesignmethods.Butitisnotveryconvenienttolookupsomecharts.Andthedesignprocessexistsmattersincalculating.Inthiscomplicatedcalculatingprocess,theremaybeerrorsbecauseofone’sstrain,whichwouldcauseseriousresults.Modifyingagainistedious,verytime-consumingandinefficient.Toaddresstheseproblems,theremustbesomeeasiermethods,whichistheprimaryobjectofthisstudy.TheexploitationtoolsmainlyareMatlab2013bversion.WeuseMatlab2013btodesignforStandardWormDrive.Combiningthedesignsystemthatbasesontheknowninputparameterandsomeintermediateparametersdecidedstepbystepfromourdesignpageonthecomputer,wecandrawtheappropriatewormdesignparametersintheend.IknowaboutMatlab2013bsoftwareforthefirsttime.Mygraduationprojectisfinishedduringstudyingthesoftware.Iftherewasanythingwrong,pleasegivemesomesuggestion!Keywords:worm;ParametricDesign;Matlab2013b目录毕业设计任务书..............................................................................................................................................1一、简述........................................................................................................................................................21.1蜗杆传动的国内外研究内容................................................................................................21.2课题的意义........................................................................................................................21.3开发工具的选择.................................................................................................................3二、蜗杆传动设计理论...............................................................................................................................42.1标准蜗杆的基本参数的查阅与记录......................................................................................42.2蜗杆传动的变位..................................................................................................................72.3蜗杆传动的几何尺寸...........................................................................................................82.4蜗杆传动的失效形式、材料和结构......................................................................................92.5蜗杆传动的受力分析、效率...............................................................................................112.6蜗杆传动的承载能力计算..................................................................................................16三、用Matlab开发蜗杆传动参数化过程..........................................................................................213.1编程语言简介....................................................................................................................213.2蜗杆设计系统开发的过程及主界面....................................................................................213.3蜗杆传动参数化开发过程..................................................................................................22总结.....................................................................................................................................................24致谢.....................................................................................................................................................26参考文献.........................................................................................................................................................27附录程序代码........