The design of distribution systems of modern pneumatic grain seeders is considered. Classifications of central metering systems and distribution systems have been compiled. The advantages and disadvantages of distribution systems of different designs are described.
The disadvantages of existing distribution systems of pneumatic grain seeders are presented. A design scheme of a centrifugal seed distributor is proposed and the principle of its operation, the causes of uneven distribution, and the history of the development of grain seeders, in which the principle of central seed dosing is implemented, are described. The analysis of designs of pneumatic grain seeders is carried out, the types of their dosing and distribution systems are revealed.
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