The process of potato digging is characterized by high energy costs due to the interaction of the digging tools of potato harvesting equipment with the tuberiferous soil layer. The most common type of digging tool of a potato digger is a ploughshare. The proposed design of the ploughshare can be installed on most domestic potato diggers. It differs from the serial design of the digging tool by the cutting edge shape, divided into fingers of equal length, located at the same distance from each other, having a one-sided sharpening on the back side and pointed in the front part in the digging direction at an angle of 30 degrees. The design changing of the ploughshare allows reducing the soil volume, entering the transporting and separating organs of the potato digger, and minimizing the effort of introducing the ploughshare into the soil, contributing to a decrease in traction resistance. The article presents some theoretical prerequisites and the research findings on the effect of the digging tool design on the traction resistance of the potato digger.

Shishlov Aleksandr N., Shapar Мikhail S., Shishlov Dmitriy S.

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