PLOUGHSHARE Russian patent published in 2022 - IPC A01C7/20 

FIELD: agricultural engineering.

SUBSTANCE: ploughshare contains a case, two discs installed on the case at an angle to each other, a seed guide rail, and a ripper, made as a single whole of a pipe of a rectangular cross-section, a furrow roller with a spring rack. The pipe of the rectangular cross-section is connected by means of a hinge to a funnel of a neck of the ploughshare case, while the hinge is made in the form of two links. One hinge link is made in the form of a pin with a head, movably installed on two supports, while two supports are made in the form of left and right sleeves along a direction of movement of the ploughshare. The second link has a shape of a sleeve stationary installed in a hole of a bracket, made on its free part. The bracket is stationary fixed to the funnel of the neck of the ploughshare case in its lower rear part along the direction of movement of the ploughshare. A limiter is installed on the free part of the bracket, located lower the hinge. An upper part of the pipe of the rectangular cross-section and the funnel of the neck of the ploughshare case are tightly connected with a flexible sleeve. A flat spring is installed at a place of attachment of inner scrapers of ploughshare discs, a free part of which touches the pipe of the rectangular section lower the hinge. At the same time, the free part of the flat spring is bent along a curve line, and holes of attachment of the flat spring are made of an elongated shape. Coating of rubber is applied inside the pipe of the rectangular cross-section. At the same time, the flat spring is made of 65G spring steel.

EFFECT: invention will allow for an increase in uniformity of seed distribution along a furrow length and seeding depth, as well as for reduction in traction resistance of ploughshare and an increase in operation reliability.

1 cl, 2 dwg