DEVICE FOR ROTARY SUBSURFACE TILLAGE WITH MECHANICAL DRIVE Russian patent published in 2012 - IPC A01B13/16 A01B33/02 

FIELD: agriculture.

SUBSTANCE: device comprises a rotary slot cutter with a slot cutter disc, a circular slot cutter with an intermediate gear of inner engagement, a master, an alignment and a slave gears of the subsurface tiller drive. The device is equipped with an intermediate gear of a drive, which is installed on the slot cutter disc with engagement and the inner intermediate gear of the circular slot cutter drive and the slave gear of the drive of the subsurface tiller. The circular slot cutter is equipped with external cutting elements and reservoirs to get soil arranged between them. Cogs and dents of engagement of the master, intermediate of inner engagement, intermediate and slave gear of the subsurface tiller drive are arranged in pairs as complementary in turns at the left and right along engagement of each gear. The master, intermediate of inner engagement, intermediate, alignment and slave gears of the tiller's drive are equipped with cylindrical support surfaces. Support surfaces of gears are arranged in the form of sections of the cylindrical surface, along which elements of the circular slot cutter drive are mutually run in. The generatrix of the cylindrical surface is a pitch circle of each gear. Support surfaces are arranged as complementary in turns at the left and right oppositely to the appropriate cog and dent of the gear engagement.

EFFECT: increased efficiency of soil treatment.