SOIL-CULTIVATING WIDE-CUT IMPLEMENT Russian patent published in 2009 - IPC A01B73/00 

FIELD: agriculture.

SUBSTANCE: invention is related to agricultural machine building, in particular to wide-cut sectional soil-cultivating machines, which are put into working and transport positions. Implement comprises hitch frame equipped with drag bar and brackets for installation of middle and extreme frames in transport position in front part and support wheels in back part, sections of working elements, central, two middle and two extreme frames, which are hingedly connected to each other, with central frame, with hitch frame and controlled by hydraulic cylinders through brackets rigidly fixed on frames and hitch frame. Each pair from extreme and middle frames with central frame is hingedly joined by means of two parallel installed four-link hinged mechanisms. The first crank of mentioned mechanism is created by bracket of central frame, upper and lower connecting rods connected to brackets of middle and extreme frames. Lower connecting rod by stem and base of hydraulic cylinder is additionally connected to bracket of central frame. Each section of working elements has shaft with set of working elements, bearing supports on shaft ends are mounted with the possibility of dismantling on longitudinal plates, which are mutually coupled by pair of transverse bars. In the middle of each transverse bar of section there is a bush welded-in, which by means of axis is mounted in bush on transverse bar of either central frame or middle frame or extreme frame. Coupling of coaxial bushes on transverse bars of working elements section and any frame by means of axis create a pendulum suspension, angular swaying of which is limited with limiter of working elements section rotation. Each frame is created with a pair of transverse bars, ends of which are coupled by longitudinal plates, having U-shaped cuts in upper part for matching in working position with lower connecting rods of four-link hinged mechanisms.

EFFECT: improved operational reliability and expanded scope of performed technological operations.

3 cl, 14 dwg