Експериментальні дослідження пневмомеханічного висівного апарата для висіву насіння просапних культур

Abstract

В статті розглядається серія експериментальних досліджень нового пневмомеханічного висівного апарата для висіву насіння просапних культур. Результати досліджень свідчать про можливість підвищення ефективності точного висіву. The aim is to obtain precise seeding evenly placed on the area of the field plants, which, in this case, have the same area and power developing best. The uniformity of seed placement in the line depends on the uniformity of seed placement on the seed disc, which requires properly orient the seed at the stage of seed capture drive. In order to improve precision seeding cultivated crops at the Department of Agricultural Engineering Kirovograd National Technical University has developed and manufactured a prototype of a new pneumomechanical sowing device, the main feature of which is the presence of extra seed disk that thanks to the original design directs seed to suction hole. Moreover, at suction hole located just one seed. If captures two seed, the second seed is above the upper edge of the extra drive and completely removes unnecessary seeds. In the article the new series of experimental studies pneumomechanical sowing device for sowing seeds of cultivated crops. The research results indicate the possibility of increasing the efficiency of precise seeding. Analysis of response surfaces for fill factor cells of seed disk, to determine the optimal values of the studied factors, namely: value of additional disk thickness should be in the range of 1.4 to 1.6 mm; radius cavity additional disk should be in the range of 3 to 3.2 mm; value of vacuum in the vacuum chamber should be in the range of 2.0 to 2.4 kPa; the rotational speed of the sowing disc cells should be in the range of 0.22 to 0.26 m/s.