主講人：趙慧、楊國星TianjinLightIndustryVocationalTechnicalCollegeDrawingKeyandPinConnections.PartI

IntroductiontotheClassPARTIIntroductiontotheClassHowdothepulleys,gears,etc.,inthediagramachieverotation?HubConnectionIntroductiontotheClassKeyConnectionPinConnectionPartIIDrawingMethodsforKeyConnectionsPARTII

Inmachinery,keysareusedtoconnectashaftandthecomponentsontheshaft(suchasgears,pulleys,etc.),allowingthemtorotatetogetherandtransmittorque.Thistypeofconnectioniscalledakeyconnection,andkeysarestandardmachineelements.ClassificationofKeysRectangularKeyWoodruffKeyGib-headWedgeKeySpecificationMarkingofParallelKeysNameTypesExampleIllustrationMarking

ExamplesStandardParallelKeyTypeATypeBTypeCForaround-headstandardparallelkeywithb=18,h=11,L=100:GB/T1096-2003Key18×11×100Forasquare-headstandardparallelkey(TypeB)withb=18,h=11,L=100:GB/T1096-2003KeyB18×11×100(TheBshouldnotbeomitted)Forasingleround-headstandardparallelkey(TypeC)withb=18,h=11,L=100:GB/T1096-2003KeyC18×11×100(TheCshouldnotbeomitted)DrawingMethodforParallelKeyConnectionsDrawingMethodforParallelKeyConnectionsThereisaclearancebetweenthesetwosurfaces;twolinesshouldbedrawn.WorkingSurfaceSectionlinesforadjacentpartsmusthaveoppositehatchdirectionsordifferentspacing.DrawingMethodforParallelKeyConnectionsdd-t1LbDrawingMethodandDimensionalNotationofKeywaysontheShaftKeywayDepthontheShaftKeywayWidthDrawingMethodforParallelKeyConnectionsbDD+t2t2andbcanbefoundinthestandardsbasedontheholediameterD.DrawingMethodandDimensionalNotationofKeywaysontheHubKeywayDepthontheHubKeywayWidthPartIIIDrawingMethodofPinConnectionsPARTIIIPinsarestandardpartsprimarilyusedforconnectingandpositioningcomponents.Commontypesinclude:CylindricalPinTaperedPinforconnectionforpositioningClassificationandFunctionofPinsDrawingMethodandMarkingforCylindricalPinConnectionsNotationofCylindricalPinHolesonDrawingsShaftGearPinperGB/T119–8×40?8pinholetomatewithpartXXCylindricalPinConnectionConepinholeΦ8formatchingPinGB/T117A8×30DrawingofconepinconnectionConepinholenotationon