FIELD: agriculture; machine building.
SUBSTANCE: invention relates to agricultural machine building. Device comprises a frame, a share and a rotating rotary separator. Undercutting share is made in the form of a rotating spherical disk with cutouts, located at an angle to the direction of motion and tilting back. Under the opposite spherical disc, the angle of attack with a backward inclination is established by a freely rotating separating working member made in the form of an annular rim with spokes and a hub, with springing rods fixed to it at a certain interval forming a separating surface in the form of a truncated cone.
EFFECT: energy intensity and force impacts on the tuber layer are reduced.
1 cl, 3 dwg
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