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 disks of front row battery are connected by cardans, and shafts of front disk batteries are joined to shafts of rear disk batteries through chain transmissions with replaceable sprockets. During advancement of tillage tool along field, disk batteries are rotated by engagement of their teeth with soil. Front battery disks are rotated at equal angular speed. Rear battery disks are rotated at equal angular speeds which are less than, equal to or exceeds angular speed of front battery disks. Such construction provides improved quality of surface soil tillage and allows maximum amounts of plant remains to be kept on field surface. EFFECT: increased crop yield and improved protection of field from wind erosion. 1 dwg