FRAME OF TILLAGE DEVICE Russian patent published in 2008 - IPC A01B59/04 A01B63/02 A01B73/02 

FIELD: agriculture, equipment.

SUBSTANCE: invention concerns agricultural engineering. The frame includes a central, middle and edge sections joined by swivels, and leverage with hydraulic cylinders joined by swivels for bringing lateral section into transportation mode. The leverage for bringing middle and lateral sections into transportation mode consists of a power unit and a slave unit. The power unit comprises opposite short-stroke and long-stroke hydraulic cylinders. The slave unit includes coupled cross drafts of equal length. The leverage is assembled at a telescopic hitch tongue. Immobile part of the hitch tongue comprises parallel hollow beams, and its rear ends are fixed to the central section. The mobile part of the hitch tongue comprises bars pulling out of the hollow beams and is connected to the aggregate tractor by a drag bar. The pins of short-stroke and long-stroke hydraulic cylinders are linked cinematically by a double-arm lever. Basement of the short-stroke cylinder and the double-arm lever are attached to the middle hollow beam of immobile part of the hitch tongue. Basement of the long-stroke cylinder is attached to the mobile part of the hitch tongue. Rear ends of cross drafts are connected to the middle lateral sections. Front ends of the said drafts are connected to the swivels of mobile part of the hitch tongue.

EFFECT: lesser dimensions of tiller frame in transportation mode.

2 cl, 2 dwg