010018、。。。S222.12S23A1003-188X201501-0013-050。。、1-5。。。2。11.1。、、90°180°1。。2013-12-24“”2012BAD04B041987-E-mail303911340@qq.com。1960-E-mailnndjwc202@imau.edu.cn。。180°180°。1.290°“”。、、。1。、。1Fig.1Pneumaticrolloverinstitutions180°180°。·31·201511DOI:10.13427/j.cnki.njyi.2015.01.003、。2、3、41。2Fig.2Horizontalcylinderflip3Fig.3Verticalcylinderflip4Fig.4Duplexturnjointinstitutions22.12060-70。、、、、、3。、、、。。—————。、、、4。、、、。、、、、-。-18km2/h5。LEMKEN1905。。。、。。OptiQuick。/-6。。、7-89。。·41·201511①②③④。2.22.2.1、。199610。20081FFSL-5、、11。。1999“1LB-542”“1LCH-546646”“1LCHT-4/5”3。201125.7~36.8kW、。20121LFS-435、1LFT-43512-14。2.2.22。199915200716。44。4、、。17。2008180°18。1LF-435A19。2.2.3。、1。。1984CAD/CAM201993CAD/CAM、、2010%21。20082011Pro/E、22-234。、。2009MathCAD。ANSYS/LS-DYNA—24。2010Pro/E·51·201511。25。33.1、。。3.2、。3.3。。。44.1。、。4.2。。4.3、、。4.4“”。5。、、、、。1.K.2007175-222.2.D.2008.3.J.2005433-34.4.J.2001337-39.5.J.2008944-45.6EB/OL.2013-09-20.ht-tp//my.tv.sohu.com/us/50333101/27868326.shtml.7LCordessesJPPoirierCVeron.PerformanceanalysisofathreepointhitchcontrollerC//IEEEInternationalConfer-enceonIntelligentRobotsandSystems20022233-2238.8W.Coates.Performanceevaluationofthree-pointhitchguidancesystemsJ.AppliedEngineeringinAgriculture2002186657-660.9SatyajitSAmbikeJamesPSchmiedeler.Applicationofge-ometricconstraintprogrammingtothekinematicdesignofthree-pointhitchesJ.AppliedEngineeringinAgricul-ture200723113-21.10.J.1996163293-294.11.1FFSL-5J.20085136-138.12.1LFQ-325J.20113592-594.13.1LFS-435J.20121129-131.14.1LFT-435J.201239-11.15.J.1999333300-302.·61·20151116.200520105479.1P.2013-10-20.17.4J.20064141-143.18.180°J.20115166-167.19.1LF-435AJ.2008828-29.20.CAD/CAMJ.1984390-94.21.J.19939269-76.22.J.20113349-12.23.J.2008618-20.24.J.2009372311160-11162.25.J.2010321183-86.HangingReversiblePlowResearchStatusandDevelopmentTrendFengYaliDuJianminHaoFeiZhangShoudeCollegeofMechanicalandElectricalEngineeringInnerMongoliaAgriculturalUniversityHuhhot010018ChinaAbstractChinaisalargeagriculturalcountry.Plowingprocessisessentialinagriculturalproduction.Moldboardploughisplowingequipmentwhichhasalonghistoryanditisalsothemostwidelyusedmachineintheworld’sagriculturehis-tory.Comparedwiththeordinarymoldboardploughmountedroll-overplowcanworkalternatelybecauseithastwogroupsofplowbodyontheplowstockItreducesthedistanceofthetractorsandimprovesitsefficiency.Thereforethispaperintroducesthetypesandcharacteristicsofthemountedroll-overplowbrieflydescribesthepresentresearchsitua-tionofmountedroll-overplowathomeandabroadanalyzesthemainproblemsofChinesemountedroll-overplowinthedesigninganddevelopmentaspects.Thispaperalsoputforwardsomerelatedstrategiesandsuggestionsinordertoof-fersomereferencesonthedevelopmentoftheChinesemountedroll-overplowwhichisadapttoournationalconditions.Keywordsreversibleplowstatusdevelopment12AbstractID1003-188X201501-0009-EAADeviceandApproachforAgriculturalProductsInformationCollectionBasedonSpeechRecognitionXuJinpu12ZhuYeping11.AgriculturalInformationInstituteChineseAcademyofAgriculturalSciencesBeijing100081China2.SchoolofCommunicationQingdaoAgriculturalUniversityQingdao266109ChinaAbstractTraditionalagriculturalinformationgatheringmodeisinasinglewayandtheavailabilityofequipmentsispoorcausedbyoperationenvironment.Fortheseissuesinthispaperweanalysisthecharacterofagriculturalinformationcol-lectiondevicesanditsoperationsceneandthenproposeaninformationcollectionmethodbyspeechrecognitiontechnol-ogy.Thissystemrealizerecognitionengineoncloudcomputingplatformandthentraintheacousticsmodeswiththisen-gine.ThespeechsignalcanbecapturedbythemobilehandheldterminalandbesenttotheservertorecognizedthroughtheInternet.Theexperimentalresultsshowthatwiththismethodtherecognitionratecanachieveabove95%basicallymeettheneedsofagriculturalvoiceinformationcollection.Keywordsrecognitionspeechinformationcollectionagriculturalproductsinformationhandhelddevice·71·201511