HAMMER GRAIN GRINDER WITH VERTICAL ROTOR Russian patent published in 2021 - IPC B02C13/14 

FIELD: agriculture.

SUBSTANCE: invention relates to a hammer grain grinder which may be used for grinding feeder grain for feed compounds. The hammer grain grinder consists of a cylinder vertical body 1, wherein the inner operating surface is protected by jagged bumper decks 2. The top part of the body 1 has a loading bunker 3 and in the bottom part of the grinding chamber 7 there is a bearing unit 8. Inside the cylinder body 1 a console type rotor shaft 4 is mounted coaxially, disks 5 are attached to said shaft, the disks shaped as flat metal plates of uniform thickness diameter whereof is increasing from the top down by a constant value n forming a frustum of a cone. On each disk 5 level four standard hammers 6 are installed. In the bottom part of the rotation plane of striking elements of the grinding chamber 7 an unloading window 14 is located. The vertical shaft of the rotor 4 is set to motion from an electric engine 10 via vee belt drive including vee belt pulleys 11 and 12, a belt 13 and a bearing unit 15. The hammers 6 on the rotor disks 5 are installed along a downward trajectory of a quadruple threaded screw and distanced from one another with certain coverage wherein the ending of each spiral screw hammer line lies on a generator leading from the starting point of another spiral screw hammer line.

EFFECT: increased efficiency of grinding of grain material is achieved in the grinder through leveling the grain composition of the processed material.

1 cl, 2 dwg