Browsing by Author "Eskhozhin D."

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    Mathematical Modelling and Designing of a Universal Conical Spreader for Granular Material
    (2023-09-01) Nukeshev S.; Eskhozhin D.; Mamyrbayeva I.; Karaivanov D.; Gubasheva A.; Tleumbetov K.; Kossatbekova D.; Tanbayev K.
    A universal conical spreader for uniform distribution of granular fertilizers and seeds of grain crops, grasses is proposed. The developed universal conical spreader is designed for subsurface application of above-mentioned granular materials using seed drills and can be used as a passive distributor in a wide variety of applications. The methods of theoretical mechanics and descriptive geometry, particularly the method of replacement of projection plane have been applied to arrive at the design of the cone - the shape of conical spreader. A parametric equation was derived for the truncated part of the cone, which is an ellipse. The unique design of the cone-shaped distributor has a truncating form in the direction transverse to the movement of the seeder. In order to determine the interval of variability of spreader parameters more precisely, an analysis was carried out using a Mathcad-15 software. The results of theoretical research were confirmed in the laboratory and field conditions. The width of seed distribution, uniformity, and stability of distribution were studied to arrive at the most effective cone distributor design. The smallest values of non-uniformity and instability of material distribution of experimental coulter are reached at the values of factors D = 117-119 mm, h = 17-18 mm, and H = 32-35 mm.
  • No Thumbnail Available
    Item
    Theoretical investigation of a conic-helical loosener for fertilizer applying machine Teorijsko ispitivanje konično-helikoidnog rasipača stroja za umjetno gnojivo
    (2017-01-01) Nukeshev S.; Eskhozhin D.; Karaivanov D.; Eskhozhin K.; Balabekova A.; Zhaksylykova Z.; Zolotukhin Y.
    The paper reveals that the available facilities of granular fertilizer applying do not completely meet the technical requirements. In order to ensure stable and reliable dosing of fertilizers it is necessary to destroy the arch obtained above the hopper outlet and to provide forced feeding of the material (fertilizer) to the feeder (measuring device). The goal of the study is selection of optimum parameters of the fertilizer applying machine conic-helical loosener. The theoretical researches carried out allow to establish the relation between the motion (speed and displacement) of the material (fertilizer) elementary particles along the coils of the springs and the loosener design and technological parameters (the angle between the generant and axis-cones, the helix angle of spring coils, the cone base radius, the coefficients of external and internal friction, the angular speed). By varying each one of the parameters their optimum combination could be selected depending on the accepted loosener efficiency criterion.
  • No Thumbnail Available
    Item
    Theoretical substantiation of the design of a seeding device for differentiated intra soil application of mineral fertilizers
    (2016-01-01) Nukeshev S.; Eskhozhin D.; Lichman G.; Karaivanov D.; Zolotukhin E.; Syzdykov D.
    The existing seeding devices not fully provide quality of application of mineral fertilizers. Unevenness and instability of application reach 20-40% at demanded to 15%. It, first of all, associated with the absorption of fertilizers and imperfection of seeding devices for fertilizer. For a solution of the problem of ensuring quality of application of mineral fertilizers at their intra soil differentiated application the original design of the pin reel of a seeding device is offered. Pins of the reel are executed in the form of the tetrahedral truncated pyramids located on crossing right and left multiple-helical lines on a reel surface. Theoretical researches relied on regularities of classical mechanics. As a result of theoretical researches the expression connecting all key design and technological parameters is received: reel radius, number of pins on it, their height and the sizes of the top and lower basis, diameter of a driving wheel, rate of application, aisle width, and transfer ratio of the driving mechanism.