WORKING MEMBER OF CULTIVATOR FOR SEEDBED SOIL PREPARATION

摘要

FIELD: agricultural implements. SUBSTANCE: working member has shank which is double-side sharpened and has rear wall and attached to it is flat-cutting duckfoot with front cutting edge. Upper face of rear wall is made horizontal and provided with two supporting flats spaced apart over its length. Semi-cylindrical recesses are made in front and rear supporting flats symmetrically to longitudinal axis. Provided on rear supporting flat after semi-cylindrical recesses is protrusion of trapezoidal shape conjugating with slot in the form of dovetail in rear part of flat-cutting duckfoot. Nose and rear parts of flat-cutting duckfoot are conjugated with front and rear supporting flats and additionally connected with rear wall by bolt with countersunk head. Bolt is seated in line with shank in coaxial vertical holes of flat-cutting duckfoot and rear wall. Rear wall is of variable cross-section over its length and smoothly conjugated with lower end of shank. EFFECT: high efficiency. 1 cl, 4 dwg