967.一差動式帶制動器(differential band brake),如圖..-阿摩線上測驗
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4F funway 大三下 (2020/04/29)
一差動式帶制動器(differential band brake),如圖所示,其鼓輪半徑R=150mm,且以順時針方向旋轉;其槓桿的尺寸為A=100mm,B=35mm,L=400mm。若皮帶與鼓輪間的摩擦係數μ=0.2,T=3000N-mm制動扭矩,(註:e0.733=2.08) F1/F2=e0.733=2.08 =>F1=2.08F2 T=F*R=(F1-F2)*R 3000=(2.08F2-F2)*150 =>F2=18.5 N =>F1=2.08F2=38.5 N P*(L+A)=F2*A-F1*B P=1.005 ... 查看完整內容 |