| 摘要 |
A single-grain sowing unit of a sowing drill is made as a body, a tank, a celled vertical disk, a drive. The celled vertical disk is made of two parts, in particular the celled disk itself, in which cells, which are shaped as grains, are evenly made around the outer circle. On the left side of the cells along the lower generatrix ejecting elements as levers are mounted. Said elements are closer to the centre of the disk and rigidly mounted on the axis in such a manner as to allow oscillatory movement thereof. From the backside the levers are in rigid interaction with the ends of extension springs, the other ends of these springs are rigdly connected with the body of the disk. Around the outer diameter the celled disk is in interaction with the internal openings of the horizontal cylindrical body with a gap lesser than the thickness of sowing seeds. In the lower part of the cylindrical body in the centre of the vertical celled disk a pipe with a through hole is made, the latter around the outer diameter is in rigid interaction with a grain tube. On the right side of the hole of the cylindrical body a floating spring-loaded stopper is rigidly mounted. The latter is rigidly mounted inside of the cylindrical body of the known design in such a manner as to allow axial movement under the effect of a pressure spring. The axis of the floating stopper is parallel to the axis of the above-mentioned pipe. From above the cylindrical body in the centre thereof a through hole, which is in interaction the opening of the tank with seeds, is made. The celled disk on the right end is rigidly closed with a cover which feels the grain cells around the outer diameter. |
