Akademik Məlumat İdarəetmə Sistemi
SOCAR Proceedings, no.2, pp.93-99, 2022 (ESCI)
The transforming mechanism of pumping units is a four-link articulated mechanism, made according to symmetrical and asymmetric kinematic schemes. With a symmetrical scheme, the center of rotation of the crank is on a straight line passing through the points corresponding to the extreme positions of the connecting rod and balancer articulation. All other cases correspond to the asymmetric scheme. Currently, in accordance with the existing methodology for designing a converting mechanism of a symmetrical circuit, the kinematic ratios r/k and r/l are used as initial data - the ratio of the crank radius to the length, respectively, of the rear arm of the balance bar and connecting rod. It is considered more preferable and practical to design a mechanism according to predetermined output parameters. As a result, we find that the overall dimensions of the converting mechanism of domestic pumping units of a symmetrical scheme (length by 45…60%, and height - 25…30%) are less than those of foreign pumping units of an asymmetric scheme. The developed technique allows to compare the technical and operational indicators of pumping units made according to various kinematic schemes.