Specification of cold running-in quality to power change losses for friction

Karpenko, Mykola; Glushchenko, A. A.; Karpenko, G. V.

doi:10.18286/1816-4501-2019-2-14-18

Cited by 2 publications

(1 citation statement)

References 1 publication

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“…Введение. На современном этапе развития АПК страны технологический процесс поверхностной (предпосевной) обработки почвы комбинированными почвообрабатывающими машинами, одновременно совмещающими ряд операций за один проход по полю, обусловливает наличие в их конструкциях необходимого набора различных перспективных рабочих органов [1,2,3,6,7,8,9]. Например, такие машины должны быть оснащены следующими рабочими органами: 1) для предварительного рыхления монолита почвенного пласта на заданную глубину; 2) для крошения комков и глыб до агротехнически приемлемых (по размерам) почвенных агрегатов; 3) для выравнивания поверхности поля; 4) для уплотнения взрыхленного и измельченного слоя почвы.…”

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Substantiation of the Form and Determination of the Constructive Parameters of the Rotation Roller of Soil

Bulgariev¹,

Пикмуллин²,

Pikmullin³

et al. 2018

Vestnik of Kazan State Agrarian University

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At the present stage of development of the country’s agro-industrial complex, the technological process of surface tillage by combined soil-cultivating machines, simultaneously combining a number of operations in one pass through the field, causes the presence in their designs of the necessary set of various promising working organs. In view of the foregoing, a rotary soil ripper with a spiral-plate working member equipped with radially directed teeth and connected by means of rods with end flanges has been developed. Also, the researched ripper has the limits of penetration of the working element in the form of flat discs equipped with flanges and the radial stop have the ability to rotate around their axes independently of the ripper shaft. An analytical study of the working units of this ripper was carried out from the point of view of the influence of their size and teeth on the process of interaction with the soil, on the basis of which some of their parameters were determined. In conclusion, it was concluded that the analytical equations obtained allow us to justify the choice of the most important design parameters of the proposed new design and design a toothed rotary working device that reduces to constructive implementation after calculating their basic dimensions.

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Substantiation of the Form and Determination of the Constructive Parameters of the Rotation Roller of Soil

Bulgariev¹,

Пикмуллин²,

Pikmullin³

et al. 2018

Vestnik of Kazan State Agrarian University

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Influence of the thickness and porosity of the oxide coating on the piston heads depending on the parameters of the microarc oxidation mode

Maryin

Molochnikov

Хохлов

et al. 2021

J. Phys.: Conf. Ser.

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This paper discusses the process of formation of an oxide coating (hardening and heat-insulating coating) on the working surfaces of the head (top and piston grooves) of the piston by the method of microarc oxidation (MAO). In the process of oxidation of the piston head, the operating parameters of MAO will have a significant effect on the thickness and porosity of a formed oxide coating. The paper presents the theoretical relationships between the electrical parameters of the microarc oxidation mode and the thickness and porosity of the oxide coating. The thickness of the formed oxide coating on the piston heads will depend on the applied voltage and the composition of the electrolyte used. The porosity of the formed oxide coating will depend on the parameters of the current strength and the applied voltage. It is theoretically established that the formation of an oxide coating of a certain thickness and porosity occurs due to changes in the current strength, voltage and time of microarc oxidation.

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Specification of cold running-in quality to power change losses for friction

Cited by 2 publications

References 1 publication

Substantiation of the Form and Determination of the Constructive Parameters of the Rotation Roller of Soil

Substantiation of the Form and Determination of the Constructive Parameters of the Rotation Roller of Soil

Influence of the thickness and porosity of the oxide coating on the piston heads depending on the parameters of the microarc oxidation mode

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