| 摘要 |
FIELD: agricultural industry; mechanics. ^ SUBSTANCE: seed-sowing device consists of a seed tank, a seed vessel with a shutter, and a working member. On the end of the working member there located is a wedge seed divider made of plates. Thickness of the plates is divisible by an equivalent grain size. On the side surface of the plates there provided are channels meant for supplying seeds to seed drop tubes. Upper generatrixes of the plates are installed at an angle less than angle of seed friction on their surface. To control uniform supply of seeds to the channels, the unit is equipped with a corrector. Corrector is made in the form of a double-arm lever installed on a vertical axis. Division accuracy of seed flow on the working member is performed by changing the attack angle of corrector. Working member has also a flexible plate the stiffness of which is adjusted with springs. Intended vibration frequency of the working member is ensured by a seeding rate selector made in the form of a sleeve with pins. ^ EFFECT: providing general-purpose device, and reducing the number of seed-sowing devices installed on a sowing machine by two times. ^ 4 dwg |
