ROTARY TILLAGE TOOL Russian patent published in 2000 - IPC

FIELD: agriculture. SUBSTANCE: tillage tool has frame and two rows of needle-type disk batteries mounted on frame. Shafts of front row of disk batteries are interconnected by cardans. Shafts of rear row of disk batteries are also interconnected by cardans. Replaceable sprockets are mounted on intermediate shafts of front and rear rows of disk batteries and connected through chain to pulling device. During advancement of tillage tool along field, disks are rotated by engagement of their teeth with soil. Front disk batteries are rotating at equal angular speeds. Rear disk batteries are also rotating at equal angular speeds which are less than, equal to or exceed that of front disk batteries. Such construction provides high-quality surface tillage of soil and keeping of maximum amounts of plant remains on field soil surface. EFFECT: increased crop yield and improved protection from wind erosion. 1 dwg