SOWING DEVICE FOR SINGLE-GRAIN SOWING OF CROPS Russian patent published in 2012 - IPC A01C7/16 

FIELD: agriculture.

SUBSTANCE: sowing device comprises a hopper for seeds with a horizontal cellular wheel and a housing located below it. Cells of the wheel are made in the form of L-shaped blades designed at the periphery of the wheel in size of the seeds of the sown agricultural crop. The length of the inter-blades space "ℓ" provides accommodation of seeds lengthways, depth "δ" - through-thickness of seeds, width "b" - the width of the seeds. The cellular wheel is connected to the cone-shaped guide for seeds having a cylindrical shape in its lower part over the blades. The height of the lower cylindrical part is equal to the maximum thickness of the seeds of sown agricultural crop. The vertical wall of the cell blade has a curve on the radius equal to half the maximum thickness of the seed of sown agricultural crop. The cellular wheel bears on a tray made of a material with low coefficient of friction on the seeds. A seeding window connected to the drill tube is placed at the periphery of the housing under the blades in the tray and the housing. The wheel drive with the cone-shaped guide is designed from the threaded shaft through a bevel gearing.

EFFECT: invention enables to improve productivity and reduce the consumption of seeds due to increasing the uniformity of single-grain sowing in the furrow with a specified interval.

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