Theoretical premises of determination of power characteristics of drill boot with gear disk on vibration suspender

Abstract

The purpose. To determine analytically in the de· veloped new construction of multiple-purpose com· bined drill boot of selection seeder possibilities of decreasing power characteristics of its drill boot unit. Methods. Theoretical rules of agricultural mechanics on interaction of end-effector of a seeder (universal combined drill boot, mounted on vibration suspender) with soil are submitted for consideration. The given structure of mathematical model of the process of interaction is based on the differential equations and considers action of forces of weight of structural elements, gains of springs and soil reactions on gear disk, anchor seed-pipe and covering roller. Results. New theory is developed of horizontal and vertical forward oscillations of longeron of the combined drill boot unit with gear cutting disk and system of spring gears with pressure spring and a spring of vibrator for study of effect of vibration influence on draught resistance of drill boot. Conclusions. The elaborated mathematical model enables to determine range and frequency of forward oscillations of the assembly unit depending on structural parameters and kinematic modes of operation with the purpose of determination of their effect on production process that will allow to evaluate the state of system and to optimize power characteristics of all-crop drill.