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 towing device, a hopper with sowing devices, support wheels, coulters. Each opener includes a stand, lancet paw, seed tube. On the longitudinal axis of symmetry of the lancet paw, a knife is installed in front of the rack in front of the rack, the front edge of which is pointed. The stand is hollow and mounted along the longitudinal axis of symmetry of the lancet paw. On the continuation of the vertical axis of symmetry of the rack and coaxially to the rack, a subsoiler in the form of a tetrahedron is installed and the sharp edge is directed towards the direction of movement of the opener. An outlet is made in the lower part of the subsoiler and is directed to the side opposite to the direction of movement of the coulter, and the outlet openings of the vas deferens and the subsoiler are located at a distance equal to the required difference in the depth of seed and fertilizer placement. Behind the coulters, a roller attachment is installed containing an H-shaped frame and rods, a nut and a spring, and rollers of the cultivating and leveling type are installed on each rod. The cultivating roller contains an axle and disk cultivators. The leveling roller contains an axle, side discs, a hollow cylinder and rippers. Rippers are mounted on the surface of the hollow cylinder along helical lines, the direction of which begins from the longitudinal axis of symmetry of the roller attachment and is directed towards the side disks of the hollow cylinder. In the cross section, the cultivators are diamond-shaped and with sharp edges are directed towards the leveling roller, and the tops of the cultivators are sharpened and directed in different directions from the geometric axis of rotation of the leveling roller. This design of the combined sowing unit will improve the quality of sowing grain crops.Полезная модель относится к сел
