Influence of the deflection angle on the longevity of the rope and blocks

Abstract

The article deals with the design of cable blocks and the impact of the block diameter on the
durability of the rope, analyzes the geometric parameters of the unit and the design features, and the
operating conditions of the rope on cable blocks. Dependence of the transverse load of the rope
when bending from the wire size, which determines the reduction of rope wear. We consider the
dependence that B. Kovalsky recommended to determine the diameter of the block. The graphs of
the coefficients are obtained: the effect of kink bends on the blocks during operation, taking into
account the effect of the structure on the rope, taking into account the impact of the radius of
curvature of the block creek or groove of the drum. The calculation is made according to this
dependence and the obtained difference with the normative data. Also in the article, the obtained
values of the experimental study are given, the purpose of which is to justify the rational angle of
the rope deflection between the cable blocks, to improve its durability. The diagrams of rope wear
rate are plotted for different angles of deviation and wear rate of cable blocks at different angles of
deviation.