GRAIN GRINDER Russian patent published in 2019 - IPC B02C19/16 

FIELD: agriculture.

SUBSTANCE: grinder relates to means of crushing grain material and can be used, for example, as equipment for grinding fodder grain and other granular materials. Grinder comprises frame 1, loading hopper 2, vibration drive, pendulum trapezoidal hammer 4 suspended on axis to housing and arranged between two vertical crushing jaws 7. Crushing jaws 7 are fixed to the body on flexible supporting elements 8 with formation between them and trapezoidal hammer 4 of two working chambers 9 and 10 and are configured to change their position relative to the hammer upper edge, and to trapezoidal hammer 4 bottom is fixed shaft 12 with one or several blades 20 with possibility of rotation of blades 20 due to effect of vibrational support of unbalanced rotor rotation for creation of downward air flow. In the lower part of crushing jaws 7 hammer limit stops are installed.

EFFECT: grinder ensures higher quality of crushing.

1 cl, 3 dwg