COUPLING OF ATTACHMENTS FOR TILLAGE Russian patent published in 2021 - IPC A01B59/04 A01B73/00 A01B63/16 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. The coupling of attachments for tillage contains a frame with transport wheels and a trailer device, middle and side pivoting bars, a hydraulic drive of the pivoting bars pivotally connected to the frame, impellers pivotally fixed to the side bars with an angle of setting adjustable with the help of hydraulic cylinders. Each impeller of the side pivoting bar of the coupling is mounted on a rolling cam, which is connected by means of a hinge to the side pivoting bar. The angle of rotation of the rolling cam in the direction from the coupling frame is limited. The rolling cam of each impeller has a lever rigidly fixed on it, pivotally connected to a rod, which is pivotally connected to a rocker arm pivotally attached to a side pivoting bar. A hydraulic cylinder is fixed on the beam by means of a hinge with one side, and the other is pivotally connected to the rod and/or rocker arm.

EFFECT: reliability of the connection of the impellers with the side pivoting bars is improved without vibration during operation and the service life of the articulated joints, the hydraulic cylinder and the coupling as a whole is increased.

4 cl, 6 dwg