INVESTIGATION OF OSCILLATIONS OF HAMMER ROTOR OF GRAIN CRUSHER

Due to the high productivity and the wide range of crushing, rotor crushers are widely used for crushing grain for animals. The paper deals with the movement of the rotor with moving masses as an example of a hammer rotor of the crusher, which can be imagined as a system with several degrees of freedom with nonstationary constraints, taking into account the forces of resistance and nonharmonic periodic external influences. For the generation of differential equations of the movement of the system, we used the Lagrange equations of the second kind, in the solution of which decomposition of the movement according to the proper forms of oscillation was applied. The nature of the change in the external impact was determined experimentally. Distribution of its intensity was estimated by the traces of the crushed particles left on a previously painted lateral surface of the crushing chamber.