FLAT HOE FOR BASIC BLADE-FREE SOIL TREATMENT Russian patent published in 2017 - IPC A01B35/20 

FIELD: machine engineering.

SUBSTANCE: hoe comprises a chisel (3), a shoe (1) connected to bed sides curvilinear on the side (2), on which shares (2) are fixed. The shares (2) have blades (5) with increasing angle of crumbling starting from blade tip axis to its heel. The shares (2) are made concave on the side of the treated formation in such way, that a part of the share-dump surface of the dump plough body starting from the line of the share (2) with the blade. The concave shares (2) are additionally made along a helical line starting from the toe to the heel of the share (2). The radius of concavity decreases from the toe to the heel of the share (2). The chisel (3) is also concave. The lower chisel half (3) is flat-concave gradually changing into the upper triangular-concave half, the cross-section of which is a triangular knife directed angle of solution towards untreated soil bed. The angle of solution of the working faces of the knife gradually decreases towards the end of the chisel (3).

EFFECT: improved quality of soil crumbling and increased stability of tool movement in depth.

3 cl, 5 dwg