| 摘要 |
FIELD: agriculture and forestry, in particular, single-seed drilling. SUBSTANCE: seeding unit has feeding hopper 1 from which seeds 9 are supplied into upper part of space between drums 4. Space is defined by continuous surface cylinders. While moving over surface of rotating drums 4 and downward, seeds get into lower part of drums 4, where screws with multiple trapezium-shaped thread are positioned. One drum 4 has left-hand thread and other drum 4 has right-hand thread. Thread projections on one drum are inserted into thread slots on other drum. Cylindrical seeding cell is positioned at each thread entry. Seeds are thrown into soil through seeding cells. EFFECT: increased yield of standard seedlings from unit of area of nursery. 2 dwg |
