FIELD: agricultural engineering.
SUBSTANCE: invention is designed for adjusting size of screen cells in grain harvesters. Proposed adjuster is installed in harvester tailer unit and it executes vibratory motions together with screen. Sizes of screen cells are adjusted by electromechanical drive power action of electromechanical drive is directed at angle to direction of vibratory motions of screen. In process of adjusting, size of cell is changed in one direction and control signal is generated to set required size of cell. Actual size of cell is determined automatically by measured value of adjustment.
EFFECT: high accuracy of result at repeated measurements.
9 cl, 5 dwg
