RELACINES DE VELOCIDAD

Formula para calcular la relacion



N1 * ø1 = n2 * ø2
N1= 1800 rpm n2 = ?
Ø1= 3" ø2 = 9"
N2 =n1 * ø1 /ø2 = 1800rpm * 3"/ 9" = 600rpm




N2 = n3
N1 = 1800rpm
Ø1 = 4"
N2 =? n3 = ? n4 = ?
Ø2 = 45 " ø3 = 3" ø4 = 27"
= n1 * ø1 = n2 * ø2
=n1 * ø1 / ø2 = n2
= 1800 * 4" / 45" = 160rpm
= n3 * ø3 / ø4 = n4
=160 * 3" / 27" = 17.77rpm

Velocidad de corte

Rpm = Vc * 1000 / ø * π
Velocidad de corte por 1000 sobre diámetro por π
Vc = (m/min)
Ø = mm
100ft / min
Ø = 1/2"
Ejemplo: 100ft /m *0,3048m /1ft =30,48m/min
Ø =1/2" =12,7m
Rpm = 30,45(m/min) * 1000 /12,7mm *π = 30480/39898 = 763