无碳小车转向机构设计与微调分析

6210100“”1kg。“S”700～1300mm“S”1。。。“S”。12。。。1。。23。L1l1L2l2L3l3。“S”。。MATLAB,。“S”TH132．1A1002－2333201508－0152－03SteeringMechanismDesignandFineAdjustingAnalysisofCarbon-freeCarsCHENGuo，HUANGRongzhou，LIBingchuanSouthwestUniversityofScienceandTechnology,Mianyang621010,ChinaAbstract：Basedonrequirementsof“S”typetrackraceinthe4thnationalcollegestudents’engineeringandcomprehensivetrainingabilitycompetition，thepaperdesignsacarbon-freecarthathascrankrockermechanismtomeetthesteeringrequirement.Steeringmechanismmusthavefineadjustmenttoadapttodifferentobstacles’spacing，fortheobstacles’spacinginthecompetitionisdeterminedbythedrawingoflots.MathematicalmodelofsteeringmechanismisanalyzedinMATLAB，fineadjustmentlawofsteeringmechanismissummarizedbythecombinationofMATLABandactualoperation,andthelawisproveninpracticeandthecompetition.Keywords：carbon-freecar；steeringmechanism；fineadjustinganalysis；“S”typetrack12S20001220158152ACADEMICCOMMUNICATION///6l1=9mmT=2500mm3zOδθL2BxyCL3AL1AOxb。L2l3-l3cosδ2+b+l3sinδ-l1cosθ2+l1sinθ2=l22。Rias坠ds=Ridθρ=btanδ+ad坠=dsρ。3d坠=Ridθtanδb+atanδ。x0y0=00坠dx=dscos坠dy=dssin坠坠。xz=x-asin坠+dcos坠yz=y+acos坠+dsin坠坠。xc=x-2asin坠yc=y+2acos坠坠。R=75mmi=6b=95mma=60mmθ0=π坠0=0°。MATLAB700～1400mm8～20mm97mm45mm。33.1MATLAB4～6。l1。。。3.2MATLAB7～9。l2。。。2000-200-400-600-800-1000-1200/mm50010000150020002500300035004000/mm4l1=20mmT=1400mm2000-200-400-600-800-1000/mm1000020004000300060005000/mm5l1=14mmT=2000mm/mm0-100-200-300-400-500-600/mm100002000400030006000500070002000-200-400-600-800-1000-1200/mm50010000150020002500300035004000/mm7l2=97mm/mm0-500-1000-1500-2000-2500-3000500100001500200025003000/mm8l2=96.7mm15320158///ACADEMICCOMMUNICATION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!9l2=97.3mm/mm5001000015002000250030003500/mm2000150010005000-500-1000-1500，。。4，，：，，；，；，；，。［1］，，.［J］.，2012，36（4）：32-33.［2］，，.［M］.：，2012：10-14.［3］，，.［M］.：，2003：106-108.［4］，，.［J］.，2014，31（10）：50-55.［5］.MATLAB［M］.：，2008：200-206.1994—。2015-03-211500250，，，，。、，、，。，、，，。。，、。1，，。、、、、。。S233.5TH122A1002－2333201508－0154－02DesignofRollerTypeCleaningMachineforFruitsandVegetablesLIDongHarbinFarEastInstituteofTechnologyHarbin150025ChinaAbstract：Withthepursuitofahealthydiet,theproportionoffruitandvegetableproductsinpeople’sdailylifehasimproved.Atpresentourcountrycurrentfruitandvegetablearemainlycleanedbymanual，whichhaslowworkefficiency，largelaborintensity，highprocessingcost.Topromotethecontinuousdevelopmentoffruitandvegetableproductionandrelatedindustriesoffruitandvegetableproductsdemand，thedrumwashingmachinewithfrictionwheeldriveisdesigned.Rubbermaterialisusedinthesupportwheeltorealizestablemovementandsmallnoise.Theexperimentalresultsshowthatthecleaningmachinecanrealizesignificantcleaningeffectoffruit，andcanmeettheprocessingoffruitandvegetablemarketenvironment.Keywords：fruitsandvegetables；roller；cleaningmachine20158154ACADEMICCOMMUNICATION///