DEVICE FOR ROTARY SUBSOIL LOOSENING Russian patent published in 2013 - IPC A01B13/16 A01B33/02 

FIELD: agriculture.

SUBSTANCE: device comprises a frame and two rotary slot-cutters. The rotary slot-cutters are mounted on the frame, are located vertically symmetrically along the direction of the device and are mechanically linked to a common drive. Under the drive a subsoil milling device is located. The slot-cutters and the milling device have shafts placed horizontally and perpendicular to the direction of motion of the ripper. The device has a gear pinion of drive of the annular slot-cutter located on the frame above the rotary slot-cutter and provided with outer engagement teeth performed alternately on the left and the right in the direction of rotation of the gear pinion. The rotary slot-cutter is provided with the slot-cutter disc and the annular slot-cutter. On the outer surface of the annular slot-cutter complementary to the outer engagement teeth of the gear pinion the engagement recesses are made. Along the inner surface of the annular slot-cutter alternately on the left and right engagement recesses are made. The slot-cutter disc comprises an idler, support and center drive gears, which engagement teeth are made alternately on the left and right along the outer cylindrical surface of each gear complementary to the engagement recesses on the inner surface of the annular slot-cutter. On the idler, support and center gears and the inside annular slot-cutter a cylindrical bearing surface is made, which diameter of the circle is equal to the diameter of the corresponding circle of the engagement. The annular slot-cutter is provided with cutting elements mounted along its outer cylindrical surface alternately on the left and right in the direction of rotation of the annular slot-cutter. In front of the cutting element on the side surface of the annular slot-cutter a container for ground intake is made which is open towards the side and the outer cylindrical surfaces of the annular slot-cutter. The milling device shaft is made with consoles. The engagement recesses of the gear transmission are made on the side surface of the annular slot-cutter and oriented to the outer side of the annular slot-cutter. The lateral plane of the engagement recesses is made on the same side of the annular slot-cutter as the container for ground intake of the annular slot-cutter relative to the appropriate side surface of the annular slot-cutter to a great 15-20% depth than the lateral plane of the container for ground intake of the annular slot-cutter.

EFFECT: constructive implementation enables to reduce tractive resistance and energy consumption, to increase the reliability of the device.

3 cl, 2 dwg