DOUBLE-CUTTING REAPER OF GRAIN CROPS Russian patent published in 2019 - IPC A01D34/83 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, in particular, to harvester harvesting machines. Harvester includes a frame with a reel, a receiving auger, a transporting device, a cutting device made in the form of an endless traction element with cutting elements attached to it and forming the upper and lower working branches of the cutting device. Drive of cutting machine knives is provided with two pulleys with their own rotation drives. Traction element is equipped with the mechanism of change of inclination angle to the vertical plane and the device of rotation of cutting elements relative to the horizon. Mechanism of change of angle of inclination of traction element to vertical plane consists of supports of shafts of pulleys arranged on frame with possibility of their movement along slots of plate and fixation in preset position with retainer. Turning device made for each cutting element consists of an axis installed on the traction element, a bushing consisting of two parts fixed on the cutting element, between which a torsion spring and an adjusting screw are installed on the axis.

EFFECT: simultaneous mowing of grain and stalk parts of grain crops will allow to increase translational speed of harvesting machine due to reduction of straw content of bread mass supplied on thrashing, and thus to increase productivity, reduce time of harvesting of grain crops, and also to increase efficiency of operation.

1 cl, 5 dwg