Modeling of working process at corn harvesting equipment endowed with a single corn cob detachment roll and simultaneous stem chopping

Abstract

The aim of the paper casuists in mathematical by modeling the working process of the roll, taking into account both the geometrical and kinematics features of the harvesting process and the corn crop characteristics (witch is to be picked up) .The mathematical model defines a condition of an appropriate feeding system, colligating the driving speed of the harvesting machine with the roll rotational speed and with the average distance between the plants of a row, the roll radius and the average choppable length of the corn stem. The paper refers to the use of this model in order to optimize the working process by simulation, aiming the option of a proper feeding regime an of an optimum driving system of rolls, meaningly in a general wag. The model is intended to be used to the improving of equipment performances, in design process, through the calculus off disturbing frequencies or of the feeding regime, which are comparable with the own roll frequencies, this way resonances and the knockings being avoided.