RIPPER-WEEDING UNIT Russian patent published in 2014 - IPC A01B39/18 A01B33/02 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agricultural machinery industry, particularly to machines for loosening soil and destroying weeds. The ripper-weeding unit is made in the form of a drum with the grasp width of 1.2-1.5 m and comprises a housing, a hexagonal shaft driven by power takeoff shaft. On the hexagonal shaft the rows of housings are mounted. On the peripheral part of the housings with the help of pins and holders the toothed blades are mounted. The toothed blades have the vertical angle of entry of the outer part of the blade into the soil, and the sharpening of the inner part at an angle of soil crumbling of 12-18°. The holders are fixed to each other by the compression springs and have in front part the wedge-shaped edge with a wedge angle equal to the angle of friction of the soil sliding on the steel. The toothed blades are made expanding to the outer edge and have a wedge recess with the toothed cutting edge.

EFFECT: constructive solution is aimed at quality preparing of the field for crop growing and increase in productivity.

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