SEEDING-MACHINE Russian patent published in 2012 - IPC A01C7/00 

FIELD: agriculture.

SUBSTANCE: seeding-machine comprises a frame, support wheels, a hopper with a device for sowing seeds and fertiliser, openers, cultivator teeth, discs, road wheel and a device for connecting the tool with the tractor. The seeding-machine is additionally equipped with a swinging subframe with springs, providing the possibility of elastic connection of cultivator teeth and discs. Swinging subframe is mounted on the frame by a hinge joint to provide the ability of its turning and weight transfer of the seeding-machine with a decrease or increase of pressure on the discs for their greater digging in the soil when working on hard parts of the field. In addition, the swinging subframe has a screw pair to provide the ability to change the distance from the axis of the road wheel to the frame of the tool. In the road wheel the screw plug is additionally mounted to provide the ability of filling with water of the interior cavity of the road wheel, increasing or decreasing the total weight of the tool and deepening pressure on the cultivator teeth and discs.

EFFECT: use of the invention enables to increase the quality of sowing seeds and fertiliser dressing on matted soils with common soil solid inclusions.

4 dwg