FODDER MIXER Russian patent published in 2019 - IPC A23N17/00 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular to fodder mixers. Fodder mixer contains the feed hopper, the discharge window, the casing with the spiral screw placed along its inner surface, inside of which there is coaxially installed the pipe with the shaft located in it with the spiral screw of smaller diameter. Pipe is made in the form of two cylindrical shells placed at the beginning and at the end of the casing. Coiled screw of smaller diameter is provided with the slotted sleeve fixed on it, which is mounted on slots made on the shaft in the area of the hopper. Slotted sleeve is installed with the possibility of reciprocating movement along the splines of the shaft, which is made with the protrusion. Spring is installed between the protrusion and the splined hub on the shaft. Straight hollow cylinders with made oblique contacting bases are attached coaxially to the shaft to the casing wall and the splined hub. In the course of the mixer operation, the fodder is simultaneously moved by two spiral screws in the casing and the turns of the two spiral screws simultaneously act on the fodder components. In this case, the spiral screw, which is made with a smaller diameter, performs rotational and reciprocating movement inside the spiral screw, which is made with a large diameter.

EFFECT: use of the invention will improve the quality of fodder mixing.

1 cl, 1 dwg