图 上酒短大峰 Reverted Compound Train I Input and output shafts are aligned ▣Gear ratio is: ou=N2 N @in N3 Ns For reverted gear trains: D2+D=Da+Ds N2+Ng=N4+N5 2☑ 图上涤夫廷大学 Example-2 Design a reverted compound gear train for a gear ratio of 18:1 口Solution: 18=3x6→N3=6N2,N5=3N4 N2+N3=N4+Ns=constant N2+6N2=N4+3N4=C 7N2=4N4=C >Take C=28,then N2=4,N3=7 >This is too small for a gear! Choose C=28x4=112(say) ·N2=16,N3=96, ·N4=28.N3=84 66 Reverted Compound Train  Input and output shafts are aligned  Gear ratio is:  For reverted gear trains: D2+D3=D4+D5 N2+N3=N4+N5 5 4 3 2 N N N N ω ω in out  3 5 2 4 18 N N N N            Design a reverted compound gear train for a gear ratio of 18:1  Solution: 18=3x6 N3=6N2, N5=3N4 N2+N3=N4+N5=constant N2+6N2=N4+3N4=C 7N2=4N4=C  Take C=28, then N2=4, N4=7  This is too small for a gear!  Choose C=28x4=112 (say) • N2=16, N3=96, • N4=28, N5=84 3 2 6 N N        5 4 3 N N        Example-2