Bondarenko L. The validation of parameters and modes of work of arrangement for calibration of fruit - stone culture seeds.

An object is a process of calibration of friable materials by a size indicator. Purpose is to get identical on sizes sowing material of fruit-stoun cultures by dividing of seed in fractions with deviation of mass to 10 % due to his calibration on bolters which accomplish fluctuating motions in horizontal plane. Methods. Mechanic-mathematics modeling on the computer, use of positions of theoretical mechanics, theory of blow, methods of mathematical analysis, differential calculation and probability theory, with subsequent applied program development, and also regressive and cross-correlation analyses. Novelty. It has been established a first, that seed of cherry, merry, apricot, cherry-plum and almond it is expedient to divide into three fractions: large, middle and shallow. It has been given that middle fraction is most equalized in sizes and makes about 80% from the general volume of seeds. It has been determined that calibration must be made of stone width. Theoretical positions of process of work of ball-shaped purifiers of bolters has been got subsequent development in the direction of determination of time of seized-up seeds beating out from openings of bolters. Depend-ences of distributing of energy of ball at a blow on a bolter from the structural parameters of purifiers have been given. Influence of structural and kinematics pa-rameters of process of calibration on quality of division of seed of fruit-stoun cultures on fraction has been established a first and their optimum values have been got. Results is the arrangement for calibration standard model has been developed, which production test have been conducted in Institute of Irrigated Horticulture named after Sydorenko NAAS. The results of researches have been introduced in State enterprise Experimental farm "Melitopol'skoye" and their economic efficiency acknowledged. Industry is an agricultural production.