THEORETICAL STUDIES OF THE TECHNOLOGICAL PROCESS OF OPERATION OF A COULTER WITH A SEED VELOCITY SUPPRESSOR FOR PLANTING GRAIN CROPS

Abstract

In the article, one of the major issues of planting crops is considered. It is the problem of the uniform distribution of the seeds along the length and depth of the furrow, when excluding the clogging of the outlet of the grain tube. Theoretical studies of a coulter with a seed velocity suppressor for planting grain crops are presented, and the design of the developed coulter is described. Several significant disadvantages of modern coulters of grain seeders are noted. As a result of theoretical studies, the equations to determine the movement time of a seed, the distance between the centres of mass from the first strike to the second one, the seed velocity in the fall, the fall time of a seed when leaving the grain tube, the equation of the seed motion at its leaving from the grain tube are composed. Moreover, the values of these equations are obtained, which ensure improved coulter quality. It can have an impact on increasing the uniformity of seed distribution over the length of the row and grain yields.

Keywords

• uniformity of seed distribution
• planting quality
• disc coulter
• seeds
• velocity suppressor