Abstract:

Dynamic model of eccentric-rod radial forging machine are considered. The formulas for determining of the stiffness and pliability of the elastic shaft of the dynamic model are obtained. The differential equation of motion of the model for the period of idle motion and during forging are composed. By solving these equations, it is established that the elastic moment for the period of idle motion and during forging changes according to the harmonic law, the nature of the elastic moment change at the loading stage is determined by summing two harmonic functions that correspond to forced and free vibrations and the elastic moment will be the greater, the smaller the difference between the frequency of load change and the frequency of natural vibrations of the system.

Keywords: radial-forging machine, dynamic loads, shock forces, dynamic model.