A typical drive system consisting of a motor connected to a gear
reducer using a v-belt drive. The horsepower is 3[hp], with a rate per
minute of 1750 [rpm]. Power is constant throughout the system.
a) Determine the torque at each shaft in the system
b) What if the system has losses?
i) v-belt drive (between the motor and the gear reducer)
efficiency is 93%
ii) gear reducer - efficiency is 70%
c) Select a pulley B diameter such that the input [rpm] to the reducer
is 1160 [rpm]
Motor
1750 rpm
V-belt
Gear
Reducer
V-belt pulley
4 inch diameter
mounted on
motor shaft A
Gear Reducer
Output Shaft
V-belt pulley