and guide rollers. An example of the power calculation for the template chain drive internal gear. On the calculation of the graphs of forces acting on the chain joints throughout the cycle of engagement with the transmission elements. The obtained dependences and force curves permit a more detailed analysis of the power transmission. For a comprehensive analysis of the transmission must be considered this technique as the basis for calculating the dynamic oscillations and in addition to the geometric calculation of transmission. Ключевые слова: механическая передача, цепная передача, внутреннее зацепление, звездочка, натяжение цепи, коэффициент сцепления, нефтегазовое оборудование.

Цепные передачи с зубчатой цепью нашли широкое применение как в транспортирующих машинах, автотранспорте, так и в нефтеперерабатывающем оборудовании. Предложенная методика расчета цепных передач с зубчатой цепью и эвольвентными звездочками учитывает условия её эксплуатации, загрязнения, нагрузочные режимы, динамические нагрузки, среду эксплуатации, способа смазки, попадания абразивного материала и т.д. Для поддержания её работоспособного состояния периодически проводится техническое обслуживание, важнейшее условие которого-настройка цепной передачи. В работе предложены рекомендации по настройке цепной передачи с зубчатой цепью и эвольвентными звездочками из условия отсутствия пробуксовки цепи по зубьям звездочек. Даны определения настройки уровням настроенности цепной передачи и коэффициентам провеса ветвей. Получены результаты расчетов минимальных углов обхвата звездочки, зубчатой цепи при разных числах зубьев звездочек. Выведены зависимости

The article represents the capsule review of the ontological constructions of the main trends of the Buddhist Philosophy: Sarvastivada, stating that only dharmas are real; Yogachara with its absolutization of the role of consciousness; Madhyamaka with its doctrine of the ineffability of reality. The article critically examines the statements of various modern researchers, such as Karunadasa, F. I. Scherbatskoy, J. Singh, and ancient philosophers, such as Vasubandhu and Nagarjuna, on the ontological problematics. In his article the author analyzes scrupulously the meanings of a number of Sanskrit philosophical terms and gives his own interpretations. He offers the peculiar explanation for the fundamental ontological principle of Sarvastivada: «Sarvam asti» – «Everything exists», that is all dharmas exist really, and in all three times. S.B. Berezhnoy considers also the first category of Madhyamaka Philosophy – Šūnya – as the paradoxical notion that means both «Deficiency, Lack of Being» and «Fullness of Being».

Introduction. The power analysis of a chain transmission with a toothed chain and involute sprockets considers the centrifugal forces and the friction coefficients between the plate and the sprocket tooth. The work objectives are to determine all meshing forces, and to calculate the coupling coefficient of the gear chain with the involute sprocket in the drive gears.Materials and Methods. When evaluating the traction capacity of a chain transmission, such parameters as the power analysis and the coupling coefficient of the gear chain with the sprocket are important (it shows what fold the pressure on a given tooth is greater than the pressure perceived by the tooth in front). In the presented paper, the following diagrams are visualized: the arrangement of the plates in gearing with the involute sprocket teeth and the meshing forces. The factors that affect the involute profile of the sprocket tooth are considered. This includes the weight of the chain plate package and the force: centrifugal, friction, normal pressure and tension. At the same time, changes in the coupling coefficient for the subsequent teeth involved in traction are taken into account. The balance of the links i and i+ 1 of the gear chain is studied in the coordinate system XOY with the center on the axis of rotation of the involute sprocket. The method enables to determine all the desired forces through the geometric calculation of the values of the angular transmission parameters. Using the equations obtained, the following parameters are specified: the coupling coefficient Bi, the tension of the driving branch S1 and the slack branch S2.Results. A patented transmission stand with a gear chain and involute sprockets is presented. The tests carried out on itvalidated the study results of a chain transmission with a toothed gear and involute sprockets with the specified parameters. The correctness of the power analysis of the transmission with account for the centrifugal forces and the friction coefficients of the plates and the sprocket teeth was proved.Discussion and Conclusions. It is noted that the centrifugal forces and the friction coefficients during engagement affect significantly the traction capacity of a transmission with a toothed chain and involute sprockets. The data obtained can be used to accurately estimate the traction capacity of such gears.