Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина"
The utility model relates to agricultural machinery, in particular, to seeders for sowing grain crops. The combined sowing unit includes a frame with a hitch, a hopper with seeding devices, support wheels, openers. Each opener includes a tine, a duckfoot share, a seed tube. Along the longitudinal axis of symmetry of the lancet paw, a knife is installed in front of the rack in front of it, the front edge of which is sharpened. The stand is made hollow and installed along the longitudinal axis of symmetry of the duckfoot paw. On the continuation of the vertical axis of symmetry of the rack and coaxially to the rack, there is a soil deepener in the form of a tetrahedron and with a sharp edge directed towards the direction of movement of the opener. An outlet hole is made in the lower part of the soil deepener and is directed in the direction opposite to the direction of movement of the opener, and the outlet openings of the seed tube and the soil deepener are located from each other at a distance equal to the required difference in the depth of planting seeds and fertilizers. A C-shaped leveler is installed under the seed tube and is rigidly fixed with the lower part of the plate in the form of an isosceles triangle and the inner sides of the duckfoot wings, with the concave side of the leveler facing the direction of the opener movement, and the lower part of the leveler deflected in the opposite direction to the opener movement. A roller attachment is installed behind the openers, containing an axle, side discs and rippers, the rippers are rigidly fixed along the periphery of the side discs with an equal angular pitch, triangular notches are made on the outer surface of the rippers, the tops of which are directed in different directions from the geometric axis of rotation of the roller attachment. the execution of the combined sowing unit will improve the quality of sowing grain crops.Полезная модель относится к сельскохозяйственному машиностроению, в частности, к се
