椭圆齿轮行星系大株距植苗机构的设计说明书[带图纸].doc

浙江理工大学本科毕业设计论文ZSTUZhejiangSciTechUniversity学士学位论文BACHELORSTHESIS论文题目椭圆齿轮行星系大株距植苗机构的设计作者姓名杨海龙指导教师俞高红教授椭圆齿轮行星系大株距植苗机构的设计浙江理工大学机械与自动控制学院毕业设计诚信声明我谨在此保证本人所做的毕业设计，凡引用他人的研究成果均已在参考文献或注释中列出。设计说明书与图纸均由本人独立完成，没有抄袭、剽窃他人已经发表或未发表的研究成果行为。如出现以上违反知识产权的情况，本人愿意承担相应的责任。声明人（签名）年月日浙江理工大学本科毕业设计论文摘要移植是蔬菜生产过程中的重要环节之一，移植具有对气候的补偿作用和使作物生育提早的综合效益，可以充分的利用光热资源，其经济效益和社会效益都非常可观。当前，国内正在应用的移植机械大多为半自动移植机，半自动移栽机靠手工送苗，效率低，劳动强度大，而国内自动移栽机的研究才刚刚起步，自动移栽机从取苗到植苗都由机械自动完成，效率高。国外虽有一些自动移栽机应用于生产，但还处于不断研究与推广阶段。植苗机构是将秧苗植入大田的最终机构，是旱田移栽机的核心工作部件。因此，植苗机构的设计对自动移栽机的发展至关重要。本文主要的研究内容如下1.根据植苗的技术特点和农艺要求，设计非圆齿轮行星系大株距植苗机构，满足机械植苗特殊的工作轨迹要求。2.论述了该植苗机构的工作原理以及结构特点。3.以建立的运动学模型为基础，基于可视化开发平台VB6.0，借用植苗机构辅助分析与优化软件，介绍了该软件的人机交互界面及功能，基于该软件，解决了该机构运动学分析难点。4.进行植苗机构的总体设计，讨论了设计中应该注意的问题，最后在CAD2008下完成装配图和各零件的设计。5.建立植苗机构的三维实体模型，对其进行虚拟装配。关键词大株距椭圆齿轮行星轮系植苗机构工作机理设计椭圆齿轮行星系大株距植苗机构的设计DesignofLargeSpacingTransplantingMechanismwithOvalGearforPlanetaryGearsAbstractTransplantingisanimportantprocessofvegetableprocreating,whichhasthefunctionofcompensatingvaryingclimateandshiftingtheprocreatingofplantstoanearliertime.Ithelpstheplantstousethesourceoflightandtemperaturesufficiently,whichwillmakeconsiderableeconomicalandsocialbenefits.Atpresent,mosttransplantingmachinesaresemiautomatictransplantingmachines，theyneedpickupplugseedlingbyman，whichhavehighworkintensityandlowworkefficiency,anddomesticresearchonautomatictransplantingmachineisjustbeginning.Automatictransplantingmachinecanpickupplugseedlingandtransplantingplugseedlingbythemselveswhichhavelowworkintensityandhighworkefficiency.TheoverseashaveautomatictransplantingmachinebeappliedinproductionbuttheapplicationandresearchonautomatictransplantingmachineisdevelopingThusthepickupplugseedlingmachineisthekeyissueswhichrestrictedthedevelopmentofautomatictransplantingmachineandatsametime,whichisalsorestrictedthedevelopmentoftheplantsofvegetable.Soitsapressingrequirementtodesignanewkindofpickupplugseedlingmachine.Transplantingmechanismistheultimatemechanismtotransplantseedlingsintothefieldandthenuclearworkingcomponentofdryfarmlandtransplanter.Therefore,designoftransplantingmechanismisimportantforthedevelopmentofautomatictransplantingmachine.Themajorresearchcontentsofthispaperareasfollows1.Accordingtothetechnologicalcharacteristicsandagriculturalrequirements,designoflargespacingtransplantingmechanismwithNoncirculargearforplanetarygears,whichcansatisfythespecialworkingtrajectoryrequirementsoffetchingandpickupplugseedlingsautomatically.2.Theworkingprincipleandstructuralfeaturesofthisautomaticvegetableplug浙江理工大学本科毕业设计论文seedlingpickupmechanismhasbeendiscussed.3.BasedontheestablishedkinematicmathematicalmodelandVisualBasic6.0,developthekinematicaidedanalyticalofthetransplantingmechanism.Introducethehumancomputerinteractiveinterfaceandfunctionsofthissoftware.Bythissoftware,thedifficultyofoptimizationwithmultiplekinematicobjectsofthismechanismcanbesolved.4.Designtheensembleofthevegetableplugseedlingpickupmechanismdiscusstheproblemswhichshouldbenoticedintheprocessofdesigning.FinallyfinishthedesignofpartsandtheassemblydrawingbasingonCAD2008.5.EstablishthesolidmodelofallpartsofthisvegetableplugseedlingpickupmechanisminProe5.0andthencarryoutthevirtualassemble.KeywordsLargespacingOvalgearPlanetarygearstransplantingmechanismWorkprincipleDesign