POTATO-DIGGING DOWN WORKING ELEMENT Russian patent published in 2014 - IPC A01D13/00 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machinery industry. The working element consists of a rack rigidly connected to the digger shovel, right and left rod mouldboards and adjustment gear that enables to change the inclination angles of the rod mouldboards in the transverse-vertical plane and separating rods in the longitudinal-vertical plane. The digger shovel is made in the form of a triangular symmetric wedge with the inclination angles of the faces less than the friction angle of the soil on the steel α<φ, β<φ, γ<φ, at that α≥γ and α>α₁>α₂>α₃. The lower bearing face is a horizontal blade made of thin wear-resistant steel, projecting beyond the edges of the lateral faces by a distance a=10 mm.

EFFECT: increased degree of separation of the soil and improvement of the quality of isolation of tubers is provided.

3 dwg