LOOSE MATERIAL DOSING MECHANISM Russian patent published in 2015 - IPC G01F13/00 

FIELD: machine building.

SUBSTANCE: stock in the middle part is provided with a piston moving inside a pneumatic cylinder and capable of periodic supply of fluidising gas to the lower part of massif of loose material loaded to a bunker. A valve opening mechanism actuator is fixed on a post of a sealing cover plate above the bunker and interacts with the stock by means of a crank-and-rod mechanism, the piston-rod of which is hinged to the stock through a spring suspension. Loosening of the upper part of loose material massif is performed with back-and-forth moved vertical raking agitators. Unbalanced load is fixed on the crankshaft and excites during its rotation the forced oscillations of the bunker, which contribute to its unloading.

EFFECT: improving dosing accuracy and reliability of a dosing mechanism structure.

4 cl, 2 dwg