Study of the performance efficiency parameters of a potato planting machine

This paper proposes a new design of a potato planter based on a scoop drum. In the study of individual performance parameters of the drum, its kinematic parameters have been substantiated for the first time. A feature of the proposed design is that the torque to the scoop drum is transmitted with a constant gear ratio, and the planting step of the potatoes is adjusted by changing the diameter of a variable-diameter wheel. As a result of calculations, the rotational frequency of the planting drum was established depending on the planting step of the potatoes and the translational speed of the unit. A model was constructed based on which the rotation angles of the drum cells were calculated under the condition of ejecting a single potato during its transportation to the furrow opener. The obtained results form the basis for substantiating other structural elements of the potato planter.