COMBINED TILLAGE TOOL Russian patent published in 2004 - IPC

FIELD: agricultural engineering. SUBSTANCE: combined tillage tool has central and side sections with working tools, carrier wheels and hydraulic power cylinders for rotating of side sections relative to vertical axes. Side sections are fixed on pivot beams, whose one end is pivotally coupled to transverse beam secured on central section. Other end of each link of pivot beams is connected to side sections movably mounted on vertical and horizontal axes of links. Pivot beams are coupled to central section by hydraulic cylinders. Pivot beams and hydraulic cylinder casings are movable around vertical horizontal axes. In operating position, other end of pivot beams is connected by telescopic tension members to tractor. Side sections are connected with central section in operating position and with one another in transport position by means of tightening device. EFFECT: improved quality of soil tillage and sowing, convenient watching of machine operation, improved operating parameters and maneuverability of tillage unit and reduced draft. 2 dwg