Simple calculation method of analytical sprocket

one,SprocketThe number of teeth Z is calculated according to the transmission ratio ι:



  n1: Small sprocket speed

  n2: Speed ​​of large sprocket

  Z1: Number of small sprocket teeth

  Z2: Large number of sprocket teeth

two,SprocketThe index circle diameter D

  D=P/[sin(180°/Z)] , the sprocket is not more than the gear, just give "the number of teeth, the number of rows and the model of the chain". Because the tooth type of the sprocket and some other important dimensions are It is determined by the chain he is paired with, not the sprocket itself.