WORKING TOOL FOR CENTRIFUGAL FERTILIZER THROWER Russian patent published in 2006 - IPC A01C17/00 

FIELD: agricultural engineering, in particular, working equipment for sowing of mineral fertilizers and limestone materials.

SUBSTANCE: working tool has centrifugal conical disk with main and additional blades located respectively on upper and lower surfaces of disk. Additional blades are positioned for rotation and adjustment of initial inclination angle thereof relative to generatrices of disk conical surface extending through their axes, and are spring-loaded in tangential direction. Variation of inclination angle of additional blades relative to generatrices of conical surface of disk extending through axes of additional blades is possible within the range of from 0 deg to 30 deg. Inclination angle of additional blades is varied depending upon kind of material, quantity of fed material per unit of time and rotational velocity of disks.

EFFECT: increased efficiency in throwing of fertilizer.

5 dwg