| 摘要 |
A pneumatic sowing unit contains a seed bunker, a seed-delivering channel, a seed-intake chamber, a body, a vacuum chamber and a sowing disk with openings for seed, placed around a circle concentrically to perimeter thereof. The vacuum chamber is made as rotary one inside the immovable body on a hollow horizontal shaft of a vacuum drum, to the end of which is rigidly attached the sowing disk with the latter one equipped with a seed remover, and the seed-delivering channel through a receiving window is connected with the seed-intake chamber placed in the lower part of the body. The seed remover is made as an immovable break-through vertical box, attached to the outer surface of the disk, by one of sides thereof, with a gap of 0.1-0.2 mm, arranged in such a manner as to allow covering the openings of the sowing disk, and the upper edge of the box is arranged at the level of the horizontal diameter of the disk. The body is made as quickly-demountable and such one that does not have additional construction elements thereon.
|
