1. Calculation formula of input power and output torque:
Input power P (KW) = output torque T (Nm) x output shaft speed N2 (r/min) / (9549x efficiency η).The input power of the cast iron worm gear reducer is the output power capacity of the reducer, and the output torque is the allowable bearing capacity of the reducer, listed in the power and torque table of the VEMTE reducer selection sample for selection.
2. Input shaft and output shaft speed conversion formula:
Output shaft speed N2 (r/min) = input speed N1 (r/min) / transmission ratio i.When the WPA geared motor is driven by the pulley, sprocket and coupling, the input shaft speed should not exceed 2000 (r/min), and the general speed range is 600~1800 (r/min).Too high a speed will increase the friction of the bearing and shorten its life.
3. Reducer efficiency calculation formula η:
Efficiency η = (output power/input power) x100%.Due to the friction and vibration of the wet-process phosphoric acid reducer during operation, part of the input energy will be converted into heat energy and other non-working consumption.Efficiency is the utilization rate of input energy of WPA worm gear reducer.Efficiency depends on the number of worm heads, worm speed, lubricating oil viscosity, bearing frictional resistance and friction coefficient of the turbine pair material.Efficiency values are different for each size and gearbox.
