THEORETICAL AND EXPERIMENTAL SUBSTANTIATION OF THE DESIGN OF AN OPENER FOR INTRASOIL BROADCAST SOWING OF GRAIN CROPS

T. Sankibaev, K. Eskhozhin, N. Kakabayev, D. Karaivanov, S. Nukeshev

Abstract: Existing seeder openers for intrasoil broadcast sowing of grain crops do not fully provide quality seeds scattering. Low nonuniformity of seeds scattering can be assured by vibro-distributers but they have a complicated design. An original opener design for quality intrasoil broadcast sowing is proposed. The V-shaped sweep of the opener consists of cutting blades which create a closed subsoil space. A pendulum scatterer in the form of a hemisphere is pivotally suspended inside. Theoretical studies are based on classical mechanics. As a result of theoretical investigation, an expression is obtained for determination of the length of a grain fallen in the under-sweep space. The optimal parameters of the scatterer are determined experimentally: it s base diameter, its height
and its location according to the bottom of the furrow.

Keywords: grain scatterer; intrasoil broadcast sowing; opener; seed; seed tube; V-shaped sweep

Date published: 2017-09-01