Machine-Tractor Unit with Pneumatic Hydraulic Elastic Element in Transmission Reciprocating Mass Theoretical Studies

Abstract

Increasing the stable operation and productivity of the machine-tractor unit is to create conditions for a smooth change in forward speed and the formation of traction resistance created by agricultural machines, depending on the agrotechnical requirements and the background of the processed field surface. The efficiency of wheel propellers interaction with the rolling surface is mainly determined by the coefficient of adhesion, rolling resistance and skidding of the driving wheels. The study of these phenomena that appear with the increase in the operating speeds of wheeled machine-tractor units showed that the vibrations arising in this case appear from the interaction of the tractor running system with the surface of the field on which the tractor is operating. One of the ways to improve the tractor speed is the use of devices with elastic damping elements in the tractor transmission. The operation of machine-tractor unit with elastic constraints in the transmission under the condition of random loading, confirmed the possibility of reducing the dynamic components of the hook force and negative phenomena of the wheeled tractors running system interaction caused by the increase in operating speeds.