2023年全國碩士研究生考試考研英語一試題真題（含答案詳解+作文范文）_第1頁
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1、Designprincipleanalysesofthemotionacteristicsof4H2typepeanutharvesterShangShuqiWangJiangangWangFangyanLiuShuguangJiangYuanzhi(EngineeringSchoolLaiyangAgriculturalUniversityLaiyangShong265200China)Abstract:Thestructurewki

2、ngprincipledesignofmainpartsofthe4H2typepeanutharvesterweredescribedanalyzedthekinematicsmodelofthemainwkpartswasfounded.OnthebasisoftheoptimizedstructuretherepresentativetracksofthewkpartsweredescribedbymeansofVisualBas

3、icSPSSsoftwarethemachinefunctionacteristics.Thetheeticalfoundationhasbeenprovidedffurtherstudyofthiskindofmachines.Keywds:PeanutharvesterdesignprinciplemotionacteristicsCLCnumber:S225.73DocumentCode:AArticleID:10026819(2

4、005)010087051IntroductionThepeanutisoneofthemainoilplantsinthewldwhichisonlyinferitosoybeanbutranksthesecondfoilproductioninternationaltrade.Falongtimetheplantingharvestingprocessingofpeanutweremostlycompletedbymanualwk.

5、Itisapieceoflabedwkwithlowefficiencywhichaffectsthepeanutproductionseriously.Especiallyinthelastfewyearsasthetransferringsurplusrurallabstourbanareasthecontradictionofeachlinkofpeanutproductionismeintensifyingthemechaniz

6、ationofthepeanutproductionbecomesparticularlyimptant.IthasbeenalongtimefresearchingdevelopingthepeanutharvestersindevelopedcountriesitisatypicalrepresentativethattheLP2typepeanutharvesterpeanutcombineharvesterof“Courtesy

7、lfLillistonMfg.Co.“intheUnitedStatesPH2typepeanutharvesterofMichiganinherls.ThedevelopmentofpeanutharvesterinChinaislaterthanthatindevelopedcountriesperhapsthebeginningofthe1960s.Sincethe1970smanyrepresentativemimicpeanu

8、tharvesterswereintroducedintoChinasuchastheDongfeng69type4HW800type4H150typepeanutharvesteretc.Theseproductsbringconveniencefharvestingpeanutbutthestructureofallcurrentharvestersadoptedthetwostepsofharvestprinciple—scoop

9、separatingchaincombinetogether.Thesemachineshavetomatchwiththemediumbigpowertracts.Itisnotonlycomplexinstructurehighermanufacturingcostsmepowerconsumptionporeliabilitybutalsohigherharvestinglossratepeanutvinesspreaddisde

10、rlyinconvenientfmanualcollection.Itisnotsuitablefthecurrentrequirementofpeanutharvestingresultsinthattheharvestingofpeanutisalmostcompletedbymanualwkatpresent.Themechanizationlevelofpeanutharvestingaffectedthedevelopment

11、ofthepeanutproductionseriously.Theswingdiggingprincipletheinverseparallelogrammechanismhavebeensuccessfullycreatedappliedto4H2typepeanutharvester.Ithadbrokenthetraditionalwaywhichisscoopseparatechaintocombinetogetherfhar

12、vesting.(1)4H2typepeanutharvestershouldbematchedwiththesmallfourwheeltractswhichareveryuniversal.Itsdesignisreasonablewithreliablewkingsteadyfunctionconvenientadjustmenthigheradaptabilitythismachinecanwkinvariousfieldsha

13、rvestallkindsofpeanut.(2)Inharvestingprocessplasticfilmwasnotbrokeneasycollectedwiththepeanutstalks.Thereisnoneleavingsofthemontheground.(3)Ascreatedtheswingdiggingprinciplethewholeresistancethepowerconsumptionoftheharve

14、sterhavebeenreduced.Bymeansoftheswingfunctionthesoilwithheavyspecificgravitysinkingpassesthroughthegridsthepeanutwithlighterspecificgravitymovesupsothatthelossrateofpeanutwasreducedremarkably.4H2typepeanutharvesteristhen

15、ewtypicalagriculturalimplementfthesmallscalefarmsofChinamesuitablefChinesepeanutproduction.Thisharvesterhasthesimplerstructurelowerprice.ItsvariousperfmanceindexesaresuperitotheStardoftechniqueindexesfpeanutharvestinginC

16、hina.Itcanbringmeeconomicbenefittothecustomers.References[1]DuanShufenHouWenguang.Thewldpeanutproductionthetradeoutlook[J].Chineseagriculturebulletin19906(2):2125.[2]TaoShouxiang.Thepresentconditionoutlookofpeanuthighyie

17、ldinShongprovince[J].Peanutsciencetechnology19932:2629.[3]ChenChuanqiang.Thebroadcastlectureofthemechanizationofpeanuttechniqueproduction[R].TheagriculturemachineryextensioncenterofShongprovince2000.[4]Thecomprehensiveme

18、chanizationtechniqueofpeanutproduction.TheagriculturaltechniqueextensioncenterofShongprovince1999.[5]ZhaoMingetal.Peanutproductionmachinery[M].ThepublishinghouseofHebeiprovince19818190.[6]SunYanhao.Thepeanutproduction&cu

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