PARAMETERS JUSTIFICATION OF THE IMPROVED POTATO DIGGER

This potato digger is equipped with a mechanism for transmitting torque to oscillating rods. The experiments were carried out using a special laboratory-field installation. The process digging potatoes is characterized by high energy costs due to the interaction potato digger’s ploughshares with the tuber-bearing soil layer. The purpose study is to substantiate the parameters potato digger’s lattice plowshare. In the proposed potato digger, the ploughshare is made latticed and equipped with oscillating rods. Various lattice ploughshares were manufactured and single-factor experiments were carried out. During the experiments, the degree damage and loss tuber, as well as the traction resistance potato digger were taken as evaluation criteria. The results of experimental studies to determine the parameters ploughshare are presented. It is established that the optimal design scheme a potato digger is a scheme consisting torque transmission mechanisms, lattice ploughshares and forcibly oscillating rods. As a result theoretical studies, analytical dependencies and mathematical models were obtained that allow determining the parameters a lattice plowshare. Studies have established that in order to destroy the tuber formation to the required extent with minimal damage and loss tuber, as well as energy costs, the width lattice ploughshare should be 55 cm, the angle ploughshare installation relative to the horizon is 22°, the length ploughshare is 38 cm, and the width gap between the bars is 3 cm.