Technology in developing the innovative element base in the form of spherical hinges for the spatial drives system
Journal Title: Вісник Тернопільського національного технічного університету - Year 2015, Vol 80, Issue 4
Abstract
The technological process of manufacturing the effective spherical joints of the spatial drive systems was developed. It is based on the formation of spherical surfaces of the hinge using the polymer-metal composite. The hinge has a body in the form of a ring magnet with an inlet pipe for the air. The spherical surfaces of the body are formed using the polymer-metal composite, which is applied to the surface of the sphere in the state of a paste which contacts with the edge spacers of magnet through the spacer. After the composite is hardened, the second spherical surface is formed. On the generated spherical surfaces the pockets and the grooves for the aerostatic support are formed. The process was tested during the manufacturing of a hinge prototype. The high quality of manufactured spherical surfaces of the hinge was confirmed. The geometry and the chemical composition of the manufactured spherical surfaces were studied. The quantitative microprofile characteristics were identified and its mathematical model was built in the form of two-dimensional Fourier series. The statistical microprofile characteristics of the surface were established. That is, the shape and the size of microprotrusions on the polymer-metal composite surface were defined. The high quality performance of the surfaces and their efficiency while working in the liquid friction pairs was confirmed. Based on the results of the research the original aerostatic hinge design with a magnetic power connection was developed. The hinge has a wide range of transverse angular movements (240º and above). The magnetic power connection is provided by the means of the circular and the cylindrical magnets the end faces of which interact with ferromagnetic sphere floating hinge through the layer of polymer-metal composite.
Authors and Affiliations
Sergiy Strutynsky, Andrii Gurzhij
Keywords
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