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A 單式輪系A帶動B
B 單式輪系A帶動C
C 複式輪系A→B→C→D
D 複式輪系A→C→B→D
當C=150時,只有用A帶動C或C帶動A,其中心距為 12×5(40+20)=150(mm)

A 6
B 1/6
C 介於6 ~1/6之間
D 在6 ~1/6以外

A T2=20、T3=40、T4=60
B T2=20、T3=40、T4=80
C T2=30、T3=30、T4=60
D T2=40、T3=60、T4=80

N290°360°=1/4

N430°360°=1/12,e2→4N4N2T2T4=13

故只有T2 = 20,T4 = 60 符合


A 8rpm順時針旋轉
B 8rpm逆時針旋轉
C 10.5rpm順時針旋轉
D 10.5rpm逆時針旋轉

eA→B = 6-Nm10-Nm = -12040

Nm = 9rpm

eA→C = Nc-910-9 = 12080

NC = 10.5rpm順時針方向


A 順時針方向40 rpm
B 逆時針方向40 rpm
C 逆時針方向80 rpm
D 順時針方向80 rpm

NCNA = TATC

NC400 = -20100

Nc = -80 rpm = 80rpm (逆時針CCW)


A 1/6
B -1/6
C 6
D -6

eA→F NFNA =-TA×TC×TETB×TD×TF

30×36×354×24×15=-1/6


A 78.5 mm
B 157 mm
C 225 mm
D 314 mm

e = NB1 = - 3264

NB = -0.5圈

NC = NB = -0.5圈

DC = 5×20=100 mm

S = π × 100 ×0.5 =157 mm


A 25:9:14:20
B 25:14:9:20
C 2:18:9:21
D 21:9:18:12

傳動順序為A→C→D→B 故TA+TC=TD+TB

只有選項25+9=14+20符合條件