WORKING MEMBER OF FERTILIZER SPREADER Russian patent published in 2008 - IPC A01C17/00 A01C15/00 

FIELD: agricultural engineering.

SUBSTANCE: proposed working member of fertilizer spreader includes two concentrically-mounted rotating disks with blades. Direction of rotation of inner and outer disks coincides. Outer disk rotated at speed 1.1 higher than inner disk. Both disks are made flats, are installed, each, on its shaft, and working surfaces of disks are in one plane. Diameter of outer disk is 1.6 time greater than diameter of inner disk. Guide in form of truncated cone is made of working surface of inner disk coaxially with axis of rotation. Said guide has cylindrical part in base with diameter corresponding to diameter of zone with peripheral speed of 5-6 m/s and height equal to height of blade. Cone-forming surface is made at angle of 45°C to plane of base, and guide top is made in form of part of sphere.

EFFECT: preservation of quality of fertilizer, provision of uniform distribution of fertilizer over field surface.

3 cl, 2 dwg