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1、工程机械底盘设计备用考试题（Standbytestforconstructionmachinerychassisdesign）Thesteeringcontrolmechanismof2.trackedvehicleiscomposedofsteeringclutchandbrake.Whenturning,thedrivingforceofthefastsidetrackissmallerthanthedrivingforceoftheslowsidetrack.Whenthegearsareselectedinthe3.planetaryg
2、earbox,besidestherequirementsofthedriveratio,theinstallationconditionsmustbesatisfied,thatis,theadjacentconditionsofconcentricconditionsandassemblyconditions.4.frictiondistance,frictionplatediameterandtorquereservecoefficientarethemainparametersofthemainclutchdesign.The5.sem
3、ifloatingaxleisthestructureofthesemiaxlewhichisdirectlysupportedontheouterendoftheaxlehousingthroughabearing.Thefullfloatingaxleshaftisthestructurethatsupportstheaxlehousingwithtwopairsofbearingsfarawayfromeachotheronthewheelhub.6.hydraulictorqueconverterpumpwheelspeediscert
4、ain,theloadchangescausedbythepumptorquechangesinperformanceknownashydraulictorqueconverterpenetration.12.atpresent,thedeterminationoftheintermediategearratioismainlybasedonthetwomethodsofspeed,continuityandfullutilizationofenginerate.Whenthemethodisdeterminedbythefirstmethod
5、,thetransmissionratioofeachgearshouldbechangedintogeometricseries.13.theinputcharacteristicoftorqueconverteristherelationshipbetweentorqueconverterpumpwheelspeedandpumpwheeltorque.Itisafamilyofcurvescomposedofmanyparabola.14.thesteeringwheel,thesteeringknuckleandthefrontaxle
6、betweenthethreeandtheframemustmaintainacertainrelativerelationship,sucharelativepositionoftheinstallationofthesteeringwheeliscalledthesteeringwheelpositioning.Thefunctionofthe15.driveaxleistochangetheenginepowerfromthegearboxtotheleftandrightdrivewheelsbyslowing,increasing,t
7、wistingandchangingthedirectionofrotation,andallowingthemtorotateatdifferentspeeds.16.wheeldriveaxle,activebevelgearsupporttypehascantilevertype,crossarmtypetwoways.17.hydraulictorqueconvertercanautomaticallyadjusttheoutputtorqueandspeedaccordingtothechangeofload,andimproveth
8、eautomaticadaptabilityofthemachine.18.thecharacteristicsofdieselspeedcurvem
