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手推离心式草坪播种机的设计说明书.doc

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手推离心式草坪播种机的设计说明书.doc

目录1引言....................................................................................................................................12技术任务书JR.................................................................................................................22.1设计的依据.....................................................................................................................22.2产品的用途及使用范围.................................................................................................22.3主要技术数指标和重要技术参数.................................................................................22.4主要工作原理.................................................................................................................32.5已经考虑过的若干方案的比较.....................................................................................32.6关键问题及解决办法.....................................................................................................43设计计算说明书SS.........................................................................................................53.1传动参数的计算.............................................................................................................53.2动力参数计算.................................................................................................................53.3圆锥齿轮的设计计算.....................................................................................................63.3.1选择材料,热处理方式及精度等级..........................................................................63.3.2按齿面接触疲劳强度设计..........................................................................................63.3.3计算齿轮的主要尺寸..................................................................................................83.3.4验算轮齿弯曲疲劳强度..............................................................................................93.4轴的设计计算...............................................................................................................103.4.1主动轴的设计............................................................................................................103.4.2从动轴的设计............................................................................................................143.5变速器主体尺寸的设计...............................................................................................173.6播种器叶轮的设计.......................................................................................................193.7地轮的设计...................................................................................................................203.8轴承的选择和校核.......................................................................................................213.8.1主动轴轴承的选择....................................................................................................213.8.2根据滚动轴承型号,查出rC和orC。.....................................................................213.8.3校核Ⅱ轴轴承是否满足工作要求............................................................................213.9键的强度校核..............................................................................................................233.9.1主动轴上键的强度校核............................................................................................233.9.2从动轴键的强度校核................................................................................................244使用说明书(SM)........................................................................................................244.1使用前注意事项...........................................................................................................244.2播种时应注意的事项...................................................................................................245标准化审核报告(BS).................................................................................................245.1产品图样的审查...........................................................................................................245.2产品技术文件的审查...................................................................................................255.3标注件的使用情况.......................................................................................................255.4审查结论.......................................................................................................................25结论....................................................................................................................................26参考文献..............................................................................................................................27致谢..................................................................................................................................28毕业设计说明书中文摘要手推离心式草坪播种机的设计摘要本设计是根据国内外草坪播种机的发展趋势,本着良好通用性、适应性和结构简单操作灵活的原则,而设计的一种由地轮驱动的离心式草坪播种机。本设计重点设计了播种机的变速转换机构、播种器叶轮、驱动地轮等结构进行设计选择,从机构运动的功能出发,按变异组合法和类比法完成机构的构件和设计,使结构紧凑,体积小,质量轻,噪音小、无污染,使用方便、灵活的特点,适合一般草坪的播种。采用手推来提供动力,无需引擎驱动,节能环保,使用安全、可靠,便于维护。关键词草坪播种播种机离心式手推毕业设计说明书外文摘要TheDesignOfTheLawnSeederAbstractThisdesignisaccordingtothedomesticandforeignlawnmachine,inlinewiththedevelopmenttrendofgenerality,goodadaptabilityandsimplestructuretheprincipleofoperationisflexibleanddesignsakindoflandwheeldrivecentrifugalmachinelawn.Thedesignofthekeydesignmachinespeedconversioninstitutions,impeller,drivetowheelandotherstructuredesignchoice,fromthefunctionofmechanismmotion,accordingtothevariationoflegalandanalogymethodofcompleteinstitutionsmembersanddesign,compactstructure,smallvolume,lightweight,lownoise,nopollution,useconvenientandflexiblecharacteristics,suitablefortheaveragelawnoftheseeds.Byhandtoprovidepowertopush,withoutenginedrive,energyconservationandenvironmentalprotection,theuseofsafe,reliable,easytomaintain.KeywordsGrassseedsSeedercentrifugalManualpush

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