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. 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, vas deferens. 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 and intermediate disks, and rods. On the periphery of the side and intermediate disks with equal angular pitch, recesses are made in the form of a semicircle. The lateral and intermediate disks are mounted on the axis at equal intervals in the horizontal plane and offset from each other in the vertical plane. The rods are installed in the recesses in such a way that they form a multi-helix line, and in cross section the rods have the shape of a polyhedron. Such a design of the combined sowing unit will improve the quality of sowing of grain crops. 1 n P. f-ly, 7 ill.Полезная модель относится к сельскохозяйственному машиностроению, в частности, к с
