CHISEL CULTIVATOR- PARAPLOUGH WITH HYDROMECHANICAL FUSES Russian patent published in 2013 - IPC A01B13/08 A01B35/00 

FIELD: agriculture.

SUBSTANCE: chisel cultivator- paraplough is equipped with hydromechanical fuse mounted on each working body. The working body is made in the form of "П"-shaped vertical rod rigidly attached to the spatial demountable frame, and rigidly connected to the lower half with the axis and the spiral wound spring. The lower half with its one end is rigidly attached to the axis, and with the second end is rigidly attached to the gear rim with the spring-loaded pawl. The pawl is pivotally mounted over the gear rim so that the front end of the pawl is engaged with the gear rim of the corresponding profile, and the rear part of the pawl is pivotally connected to the lower end of the hydraulic cylinder. The hydraulic cylinder is pivotally and symmetrically mounted at the rear part in the free part of the "П"-shaped vertical rod which is covered with the lid. The gear rim is rigidly attached symmetrically to the inner surfaces of the lower part of each working body. The working body has a sliding foot on which front end a roller is pivotally mounted. On the roller different-sized tapered sharpened spikes are mounted. IT types are fixed rigidly and perpendicular to the outer surface of the roller in each row relative to each other in a checkerboard pattern. The side jambs of each roller are rigidly attached to the side surfaces of the foot. The front lower blade is rigidly attached to the lower half of the working body and does not touch the foot. The lower blade enters freely into the upper blade overlapping with minimum gap. The blades sharpening angles are less than or equal to the angle of friction of the side surfaces of the blades to the soil.

EFFECT: invention enables to improve performance due to avoiding the hidden obstacles without breakages.

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