No abstract

Spatial cardan mechanisms designed to transmit rotational motion between shafts, having angular displacement, differ in a variety of design solutions. Cardan gears are an articulation of one or more universal joints and tubular shafts.  They compensate for axial movements, and also transmit torque at constant or variable angles between the connected units. During operation, the cardan transmission must function satisfactorily during the established service life, i. e., meet all the requirements arising from the peculiarities of its use. Therefore, the problem of improving cardan gears, increasing their reliability and ergonomicity on the basis of new design solutions optimized for dynamic parameters, materials used, manufacturing, assembly and operation technologies is relevant for modern technology. The paper presents a systematic approach to the creation of a new generation of cardan gears based on research in the field of operating conditions, materials science, materials technology, optimal design. It is shown that according to the results of the research, a new series of gimbal gears with improved technical characteristics has been created.

The paper examines features of the morphology and structure of thin films based on fluorinecontaining oligomers modified by nanoparticles of different composition and obtaining technology. A classification of nanophase and nanocomposite thin film coatings is proposed. The oligomeric fluorine-containing components by using mortar technology develop thin-film coatings, comprising a quasi-crystalline nanophases in oligomeric matrix with high chemisorption activity to a metal substrate. Modifying of the oligomeric matrix by active components with uncompensated charge leads to the formation of ordered areas at the interface "low-dimensional filler-matrix". In composites, containing synthetic polytetrafluoroethylene thermogas dynamic products, synergistic effect is realized due to thermodynamic compatibility of oligomeric polar and nonpolar components and highmolecular particles with uncompensated charge. This ensures the formation of coating with improved adhesion, deformation strength and tribological characteristics parameters.

The development of technology for manufacturing nanostructured substances in amounts that could suffice an interlaboratory research is a high priority task for the implementation of nanoproducts. The ultra dispersiblis clusters of synthetic carbon are used as on extra component in polymeric materials. The substances have a high dispersibility and activity of the surface. To study properties of mineral oils, modified ultra dispersiblis clusters of synthetic carbon is of interest. The present activity is devoted to the research of the modifying influence of ultra dispersiblis clusters of synthetic carbon on viscosity of the characteristic of mineral oils and their stability at various temperatures. In the preparation of diamond secondary suspensions not only statistic average sizes of particles should be taken into consideration, but also polydispersity parameters of nanodiamond particle population too.

Theoretical and technological bases for the formation of nanophase and nanocomposite fluoroorganic coatings when combining different types of activation effects are presented in the article. On the basis of the carried out studies, developed a technological and practical applications fundamentally new engineering tribological coatings with improved performance characteristics.