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MECHANISM (Rotary motion mechanism (Pulley trains with belts…
MECHANISM
Rotary motion mechanism
Friction drives (N1·D1=N2·D2=>D1/D2=N2/N1)
Pulleys with belt (N1·D1=N2·D2=>D1/D2=N2/N1)
Gear mechanisms and cogwheels (N, Z ,=N ,.Z,=>Z1/Z2=N2/N1)
Gear train (N4/N1=Z1·Z3/Z2·Z4)
Pulley trains with belts (N4/N1=D1·D3/D2·D4)
Variation in velocity
Constant system
Reducing system
Multiplying system
Linear motion mechanism
Fixed pulley (F = R)
Movable pulley (F=R/2)
Levers (F·d= f ·r)
Class 2
Class 3
Class 1
Compound pulley (F =R/2·n)
Mechanisms that transform motion
From rotary into linear
Nut and bolt system (L= P·Z·N)
Winch and crank handle (F d= R . r =>F = R· R·r/d)
Rack and pinion system (L= P·Z·N)
