CLARIFICATION OF THE APPROACH TO THE CALCULATION OF CLAMPING ELEMENTS OF CLUTCHES WITH ROPE TENSION LINKS

Abstract

In the article, due to the implementation of theoretical studies, the imperfection of the existing approach to the calculation of clamping elements of clutches with cable stretching links is shown. In the course of theoretical studies, the influence of the clamping mechanics of the steel ropes of the clamping elements of the «finger – bushing – transverse rope» type on load transfer and the strength of the clamping elements is shown. It has been proved that, under controlled tightening, the fingers of the clamping elements must be installed in the flange holes of the half-coupling with minimal clearance in order to avoid their displacement by the tension of the ropes within the gap. The process of transferring the workload from the bushings to the flanges of the half couplings is considered. At the same time, from the unconditioned compression condition, an expression is derived for calculating the required margin of drag of the rope extraction resistance, depending on the size of the clamping elements, and also for calculating the axial force of the finger tightening and the force at which the fingers are counted on the slice. Taking into account the obtained results, an algorithm for designing couplings with end ropes is proposed and approved.