Abstract
There were determined the parameters and operating modes of the centrifugal dispersion system of a grain pneumatic seeder, which ensured the minimum unevenness of the seed dispersion between the seed lines.
Highlights
Relevance of researchPneumatic grain seeders with centralized dispersion systems are widely used, their changeable productivity in 30 percent or more with an equal working width exceeds the productivity of units with mechanical seeders
Improving the quality of seed dispersion through seed lines by justifying the parameters and operating modes of the dispersion system of a pneumatic grain seeder based on modeling the movement of seeds in a centrifugal disperser is relevant
The main disadvantage of existing designs of pneumatic grain seeders is the uneven seed dispersion between the seed lines, which leads to overspending of seeds [4]
Summary
Pneumatic grain seeders with centralized dispersion systems are widely used, their changeable productivity in 30 percent or more with an equal working width exceeds the productivity of units with mechanical seeders. The analysis of research papers on the problem and the results of search experiments revealed a significant drawback of their work - a high unevenness of the seed dispersion between seed lines, due to the imperfection of the technological process of seed dispersion by centralized dispersion systems. Improving the quality of seed dispersion through seed lines by justifying the parameters and operating modes of the dispersion system of a pneumatic grain seeder based on modeling the movement of seeds in a centrifugal disperser is relevant. Pneumatic grain seeders have become widely used, allowing to increase the productivity of sowing units, as well as to reduce operating costs. The design scheme of the disperser requires a theoretical justification of the design and operating parameters based on the equation of motion in the disperser’s chamber
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