| 摘要 |
FIELD: agricultural engineering. SUBSTANCE: working toll has chisel-shaped tine with opener tip and A-hoe. Opener tip is made in the form of rod with one end sharpened and other end provided with guide. Rod is positioned in stepped diameter inclined opening within lower part of tine so that sharpened end is extended in the direction of tine toe. Spacer washers are positioned within opening on rod between guide or outside rod in axial alignment with its geometrical angle. Opener tip and spacer washers are retained within tine by cylindrical pin with axis perpendicular to rod axis and to side face of chisel-shaped tine. Opening for receiving cylindrical pin is positioned on tine at the level above A-hoe. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 4 dwg |
