简介:Inordertoachieveawheelchairclimbstairsfunction,thispaperdesignsastar-wheelstair-climbingmechanism.Throughtheeffectofthelockcoupling,thestar-wheelstair-climbingmechanismisformedtobefixedaxisgeartrainorplanetarygeartrainachievingflat-walkingandstair-climbingfunctions.Crossingobstacleanalysisobtainsthemaximumheightandminimumwidthofobstaclewhichthewheelchaircancross.Stress-strainanalysisinSolidworkssimulationisperformedtoverifymaterialstrength.