THREE DISC SOIL PROCESSING UNIT Russian patent published in 2009 - IPC A01B23/06 

FIELD: agricultural industry.

SUBSTANCE: unit of the present invention includes a flat disc furnished with a mounting hole made at its centre, and teeth. The teeth are made in the form of loosely installed axle-mounted small-sized flat discs arranged on either side symmetrically to the main disc. The small-sized discs vary in diameters, with one half of the discs having diameter twice that of the other half of the discs. The said small-sized discs are positioned equidistant from one another in an alternate arrangement. The distance from the small-sized discs to the main disc is half as much as that from large-sized discs. All discs are journaled at their axes so as to rotate on roller bearings. Both sides of the flat disc feature one additional concave disc. The concave disc features small-sized discs axes rigidly mounted thereon. The concave discs have diameter 10-15% smaller than that of the main disc and are furnished with grooves along their blade edge. The aforesaid grooves are positioned equidistant at each of the discs, with spaces between grooves differing from one disc to another, i.e. distance between grooves made at one of the discs constitutes a 'golden ratio' - 1.6 - with respect to that at the other disc. The flat disc is also furnished with grooves, the distance between them making half the smaller distance between grooves at the concave disc. The flat disc teeth are oppositely inclined in an alternate manner at an acute angle relative to the vertical direction. All discs are rigidly and symmetrically mounted onto a double bushing arranged in the central mounting hole. The concave discs are rigidly fastened by their inner concave surface to the bushing flanges inner surface. The central disc is mounted onto the middle of the same bushing. Blade edges of all the small-sized discs are aligned with that of the concave discs. Additionally, each of the small-sized discs axes features two rigidly mounted discs separated by distance sleeves, with one of said discs being flat and the other concave, both having the same diameter. Note that a concave disc is arranged between flat ones.

EFFECT: enhanced quality of soil processing due to improved plowing efficiency.

2 dwg