Analysis of the process of cutting the stem with a knife of a disk chopping apparatus

Abstract

The paper presents the results of the analysis of the process of cutting the stem with a disk-shaped knife, taking into account the physical and mechanical properties of stalk feed. The shell of corn stalks grown in the hot climate of our country is thicker and harder, and its coefficient of friction is somewhat lower. The smaller the angle of friction, the more difficult it is to clamp such a rigid piece of rod between the active and fixed blades. To avoid this condition, the stem must be pinched and sheared between the active blade and the passive blade. On the basis of kinematic studies, the conditions for ensuring the sliding of the rod along the blade of the grinding knife are determined in the work. Based on the physical and mechanical properties of corn stalks, the conditions for ensuring the sliding movement of the stalk along the chopper knife blade are considered.

Evaluation of the influence of inhomogeneous inclusions on the stems bend of agricultural plants

“…This applies primarily to the elastic moduli of compression and tension both along and across the stem fibers in the internodes. When the stem is bent, a signify can't difference in the moduli of elasticity leads to a shift of the neutral axis towards the stretched fiber, a change in the moments of inertia of the section, an uneven increase in maximum stresses, if they reach destructive values, the stem is broken either due to rupture of the fibers or due to their crushing [1][2][3][4][5].…”