DEEP TILLAGE CULTIVATOR Russian patent published in 1998 - IPC

FIELD: irrigated and bogharic agriculture. SUBSTANCE: cultivator has vertical tine 1 with cutting edge and chisel 4 on tine lower part. Tine 1 has ripper 6 formed as disks 11,12,13 fixed by connecting links in tiers behind tine 1 and coupled with tine 1 through adapters 17,18 and couplings 19,20 of anchor chain. Disks 11,12,13 are provided with cutting edges 23 extending along peripheral part by single-sided sharpening of upper surface at an angle of 15-21 deg. Window with radial slots is made in central portion of each disk. Disks are mounted on connecting links for repositioning of cutting edges relative to direction of advancement of tine 1. Width of radial slots of disks is equal to diameter of connecting link rods. Link for connecting each disk with anchor chain coupling is made in the form of ring or equilateral triangle with rounded apexes. Adapter 17 or 18 for connecting tine 1 with anchor chain coupling 19 or 20 is made in the form of oval-shaped end link and cylindrical joint 29. Half-cylindrical recesses are made in cylindrical joint surface. Mounting and lower parts of tine 1 are provided with inclined dead openings 32,33 and pairs of through openings in side surfaces of tine 1. Front part of tine has detachable blade 2. Disks 11,12,13 of cultivator have different sizes and are mounted behind tine 1 with their diameters decreasing from mounting part of tine to chisel 4 to increase ripping volume. EFFECT: reduced draft, simplified construction, prolonged service life and improved quality of tilled soil. 11 cl, 4 dwg