割前摘脫裝置機(jī)理研究.pdf

1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文割前摘脫裝置機(jī)理研究姓名：李江申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)機(jī)械化工程指導(dǎo)教師：蔣恩臣2001.5.1碩士學(xué)位論文ABSTRACT東北農(nóng)業(yè)大學(xué)STUDIESONTHEMECHANISMOFSTRIPPERHEADERABSTRACTBasedonthestudiesonthemechanismofstrippingrotorwithairsuctionbyprof.JiangEnchenmajoradvisorof

2、thisdissertationandfacingthefactthatthetheorystudiedonstripperheaderwithoutairsuctionisweakthisdissertationfocusesonthefurtherstudiesonthemechanismofstripperheaderwithoutairsuctionthroughresearchingonthecombinestripperha

3、rvester“4LTS150“madeninZhenjiangthresherfactory.Thestateofflowfieldinthestripperunitwasdemonstratedbyobservingtheflowingdirectionofricehuskandtheswingdirectionofsilkthreadintheair.Itisfoundthatwhenthestructuraloperatingp

4、arametersarechosensuitablythereisidealflowfieldinthedevice.Exceptatthepositionneartoaugerandtheconnectionpositionofrotorandbotomboardflowfieldinthedevicecanberegardedaslaminarflow.Byconnectingthemeasureddataoftheflowfiel

5、dwithmathematicaltreatmenttheregressmodelofflowfieldwasestablishedwhichisthebasefortheestablishmentofthesimulationmodeloffreegrainmotioninflowfield.Thediferentialequationsoffreegrainmotioninflowfieldandthedynamicsanalysi

6、softhegrainimpactagainstthehoodandbotomboardweredevelopedandthecomputersimulationmodelwasdevelopedtodescribethewholeprocessofaparticlewithinthestripperunit.Asaresulttherelationshipbetweenstructuraloperatingparametersandg

7、rain咧ectorieswastheoreticallydetermined.Throughcomputersimulationtesttheinfluenceoftheaboveparametersupongrainstrajectoriesandgrainlosseswerestudiedwhichisnecessaryforguidingthefurtherexperimentalwork.Bymeansofsinglefact

8、orialexperimentstheefectofstructuraloperatingparameterandmotiveoperatingparametersonthelossesisdeterminedandthesuitablerangofeveryparametersisgiven.Graduatestudent:LiJiangMajor:AgriculturalmechanizationengineeringTutor:P