SPIRAL-SCREW TYPE MINERAL FERTILIZER MIXER-SPREADER Russian patent published in 2005 - IPC

FIELD: agricultural engineering, in particular, machines for mixing and applying of mineral fertilizer, may be used for mixing and sowing of other bulk materials over filed surface.

SUBSTANCE: mixer-spreader has hopper divided into sections by means of partitions mounted for rotation relative to pins extending in parallel with spiral axes. Dosing devices arranged in lower part of sections are controlled by on-board microcomputer including inductive sensors and actuating mechanisms. Control unit is of microprocessor-based controller type. Radio navigational system is connected with first input of control unit and inductive contact-free gate position sensors are connected to second input of control unit. Control circuit inputs are switched to first and subsequent outputs of control unit and actuating mechanisms are switched to control circuit outputs. Number of control circuits and actuating mechanisms is equal to number of hopper sections.

EFFECT: increased uniformity of dosing of mineral fertilizer mixtures owing to predetermined ratio of components.

5 dwg