| 摘要 |
FIELD: agriculture.SUBSTANCE: sowing machine precision sowing of crops comprises hopper for seeds, sowing units, tubes and shares. Sowing mechanisms are vertical discs with cells on periphery of disc. Cells have shape and maximum size of sown crop seed and separated by webs, upper part of which is rounded. Bottom of cell is inclined towards seed duct, equal to angle of sliding friction of seed material of sowing disc. Above sowing window there is brush reflector-pusher. At vertical side wall of body of sowing device there is friction plate made of material with low friction coefficient on seeds. In upper part friction plate has sowing window, conjugated with seed tube. Side wall of body of sowing device, opposed to vertical side wall, is installed at angle to horizontal plane. Disc with cells is fixed on drive shaft by key. Number of sowing devices on seeder is equal to number of sown rows. Shares seeder are combined and fixed on tractions ditchers, to which disc knives are fixed by means of brackets with flanges. For furrow-formers are ramming-embedding rollers in form of two opposed smaller bases of truncated cones. After ramming-embedding rollers on guides are loop-harrows. At that, combined shares are installed in two cross rows, preventing pileup of soil before flanges of disc blades.EFFECT: higher accuracy of sowing at reduction of damage of seeds.1 cl, 4 dwg |
