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1、机械设计基础题Themechanicaldesignfoundationandtheanswers1)fillintheblanks(1pointforeachblank)TTTT—2-3,thecomponentisthemotorunitofthemachine:Thepartsarethemanufacturingunitofthemachine;Thepartistheassemblyunitofthemachine・T一2-2-02-2-4,planemotionpaircanbedividedintolowviceandhigh,lo
2、wandvicecanbedividedintotheviceofrotationandmovement・T-2-2-3-2-2,sportspairisalinkthatmakesthetwocomponentstouch,whilealsohavingaclefiniterelativemotion.Thefaceoftheplanecanbeclassifiedaslowandhigh.ThemaximumconstraintnumberofTminus2minus2minus2minus1is2.Tminus2,minus2,minus2
3、,minus2minus1,theorganizationhastheconditionthatthenumberofdegreesoffreedomisequaltothenumberofactivecomponents.T-2-2-06-2-1,thepurposeofusingvirtualconstraintintheorganizationistoimprovetheorganization'sworksituationandforcesituation.Thetwocomponentsofthet-2-2-2-1-1andplanem
4、echanismarecalledhighpairbythecontactofdotsandlines・T-3-2-08-2-2,institutionsintheposiLionofthealpha二90°pressureAngle,thedeadpointpositionofthesaidinstitutions.Cranklevermechanism,whenthecrankistheoriginalmovingpart,themechanismhasnodeadpointposition,andwhentherockeristheorig
5、inalmovingpart,theorganizationhasthedeadpointposition.T-3-2-9-2-2,hingedfour-barmechanismislocatedinthelocationofthemovingpartsandconnectingrods・T-3-2-10-2-1,inthecrankrockerorganization,whencrankuniformrotation,rockerreciprocatingswingmovementknownas:theaveragespeedofdiffere
6、ntfast-returningcharacteristic.T-3-2-11-2-1,thepolarAngleoftheswingguideisequaltotheAngleofthepole・丁-4-2-12-2-3,CAMmechanismiscomposedofthreebasiccomponentsofframe,CAMandfollower・T-5-1-13-2-1,thespiralmechanismworksbyturningthespiralmotionintoastraightmotion.T-6-2-14-2-1,inor
7、dertoensuretheworkingabilityofthebelttransmission,generalprovisionssmallpulleyAnglealphaor1200・T-6-7-15-2-3,chaindriveismadeupofactivesprocket,drivensprocketandchainonchain・Thet-6-7-16-2-3,thechaindriveandthebeltdriveareallflexibleparts.T-7-2-17-3-6,thegearmeshing,whendriving
8、geartoothroot_drivedrivengearaddendum,apairofmeshgearteethbegintoent
