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1、与上海—50拖拉机配套玉米收获机的设计(输送装置)摘要玉米作为三大主要的粮食作物之一和饲料来源,在我国分布广泛、种植面积大。因此为了使人们从繁重的收获劳动中解脱出来,实现玉米的机械化收获,提高现有拖拉机的利用率,结合市场需求我们进行了此次设计。考虑到市场上现有机型特点,大致可分为自走式、牵引式、背负式玉米联合收获机等三种类型。结合实际生产需要和各机型作业、结构特点,我们选择与上海—50拖拉机配套的背负式玉米联合收获机作为研究和设计对象。背负式玉米联合收获机由分禾器、拨禾链、摘穗辊、果穗第一升运器(螺旋升运器)、果穗第二升运器(刮板输送器)
2、、集穗箱和秸秆粉碎还田机等组成。该收获机能一次完成摘穗、剥皮、果穗输送、集穗箱、茎秆粉碎还田等项作业。其优点为价格适中,作业时无需人工开道,拖拉机利用率高,产品可靠率在95%以上,作业效果能够满足用户需求,因此深受广大农民用户的欢迎。本次设计重点在于整机配置,结构参数的计算、选择以及输送装置的参数选择和计算。输送装置采用刮板式输送器,将果穗逐渐送到集穗箱。大大降低劳动强度,省时省力。关键词:玉米联合收获机,上海—50拖拉机,背负式,输送装置THEDESIGNOFCORNCOMBINEDHARSTERPOWEREDBYSHANGHAI-50
3、TRACTORABSTRACTCornasoneofthethreemaingraincropsandfeedsources,widelydistributedinChina,alargeacreage.Therefore,inordertoenablepeopletogainfromtheheavylaborfreedtorealizethemechanizationofcornharvest,increasetheutilizationofexistingtractors,combinedwithmarketdemand,wehadt
4、hedesign.Takingintoaccountthemarketcharacteristicsofexistingmodelscanbebroadlydividedintoself-propelled,tractor,backpack,etc.cornharvesterthreetypes.Needsandtheactualproductionmodelwork,structuralfeatures,wechoosetocarrythetractorShanghai-50CornCombineHarvesterasaresearch
5、anddesignobjects.KnapsackCornCombineHarvesterbythedividerdevice,dialWochain,snappingrolls,thefirstelevatoreardevice(screwelevatordevice),thesecondelevatoreardevice(scraperconveyor),theclusterboxesandstrawBreakingfieldmachine,etc.Thefunctionofacompletedharvestsnapping,peel
6、ing,eartransmission,theclusterbox,stemcrushingotheritemsofworktofield.Theadvantageofaffordable,workwithouthavingtomanuallycleartheway,tractorutilization,andproductreliabilityrateofmorethan95%,operatingresultstomeetcustomerneeds,sopopularamongthepeasantsusers.Thisdesignfoc
7、usesonmachineconfiguration,thecalculationofstructuralparameters,selectionanddeliverymechanismandcalculationofparameters.Conveyorinstallationsscraperconveyor,theeargraduallysenttotheclustertrunk.Greatlyreducethelaborintensity,timeandeffort.KEYWORDS:back-carryingtype,double
8、line,cornharvester,machineofreturningstrawtofield,Shanghai-50tractors目录第一章绪论……………………………………………………