COMBINED AGRICULTURAL UNIT FOR HIGH-SPEED SURFACE TILLAGE Russian patent published in 2006 - IPC A01B49/02 

FIELD: agricultural engineering, in particular, soil harrowing by means of any self-propelled power supplied vehicle.

SUBSTANCE: unit has self-propelled vehicle, frame and flexible working tool connected with frame. Working tool is formed as chain-type rotating sweep with mellowing teeth. Unit is also equipped with two disk harrow blocks. Harrow disks are arranged in inclined position and are capable of rolling. Frame has chain sweep pulling mechanism members. Unit is additionally equipped with rotavators having movable knives mounted on frame forward of disk harrow blocks. Harrow shafts and spacer bushings are formed massive. Disks are equipped with teeth having wear-resistant edges provided with faceplates, and are alternately directed to different sides from disk surface. Disk harrow blocks may be connected to power takeoff shaft of vehicle and serve as third drive wheels of vehicle.

EFFECT: minimal draft to advancement of vehicle, uniform tillage of soil with regard to soil thickness, and enhanced reliability in operation.

2 cl, 13 dwg