COMBINED DISC HARROW Russian patent published in 2016 - IPC A01B49/02 A01B13/14 A01B13/16 A01B21/08 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, particularly to tillage machines. Combined disc harrow comprises a frame with connecting device and placed on frame boxes for ballast, rows of spherical discs with posts mounted on frame cross beams and chisel plows. Chisel plows are arranged behind front row of discs, have inclined buried part towards longitudinal axis of harrow and are fixed on extreme harrow frame beams. Buried part of post is arranged on trace of front disc. Front rib of inclined part of chisel plows is deviated from its vertical part by an angle 40°±5°. Height of inclined part of post of chisel plow is greater than maximum treatment depth. Bending line of post is arranged at an angle 60°±5° to vertical.

EFFECT: such design solution provides for stable operation of harrow depth without driving, as well as prevention of erosion on slopes or formation of stagnant pools in marsh on flat fields.

3 cl, 3 dwg