| 摘要 |
FIELD: agriculture.SUBSTANCE: working body of subsurface plough comprises a toe bearing, a shoe, bilateral-toothed blades with replaceable chisel, and a rack. The cutting edges of the bilateral-toothed blades are made with protrusions and recesses on the sinusoidal curve with hemispherical crumbling lining. The hemispherical crumbling lining is fixed to the surface of the blades opposite the protrusions with the location of the lining axes at the level of mid-width of the blades. The cutting edges of the toothed cutting blade of the rack in longitudinal vertical plane are made in a circular arc with protrusions and recesses on a sinusoid with hemispherical crumbling lining on both sides of the toothed cutting blade of the rack, opposite the protrusions with location of the lining axes on the circular arc at a level of the mid-width of the toothed cutting blade of the rack. The replaceable chisel on the frontal surface has a removable hemispherical crumbling lining.EFFECT: increase in the degree of crumbling of soil in the longitudinal and transverse planes of movement of the working body of the subsurface plough, reduction of back furrow behind the rack, reduction of the draft resistance, extension of the working body life-span.2 dwg |
