Study On The Performance Of Hoisting Rope 6×36WS+FC

Wire rope is a flexible product, which is made by twisting steel wires according to a certain space helical structure, it has the prominent advantages such as light weight, stable operation, high strength and good toughness. Fiber cable is widely used in mine hoisting system. Tensile, bending and twisting forces induced by stretching of the wire rope are the main causes of failure, and the effect of bending and twisting force on the performance is particularly important. Research on rope core is less because of the particularity of the core structure. The forces combined with fiber rope were analyzed and studied, which has important practical significance for studying the performance of wire rope and the matching of working condition.In this paper, fiber rope 6×36WS of the hoisting system in mine was studied, and by means of numerical analysis software Matlab, the curvature and torsion of double helix of different twist rope in straight and bending state were analyzed. The variation tendency of the curvature and torsion with rotation angle of the steel wire in different wire layers was drawn, and the distributions of the maximum and minimum values were obtained. The calculation formulas for the tension and torsion model were derived and checked. The entity model of wire rope was built by 3D modeling software Pro/E, coupling constraint method was used to simulate the loading of wire rope, and the finite element analytical results of tensile loading were obtained. Wire rope test platform was designed, and it was used to test and verify the correctness of the model of wire rope. Compared with the simulation results under torsion, it is concluded that the stress and deformation of lang lay rope were greater than ordinary lay rope. The stress and deformation of different layers of steel wire were analyzed after being subjected to torque, the maximum value was located on the outermost steel wire, the larger deformation of steel wire was far from the rope core position, and the smaller deformation of steel wire near the core.In the bending state, the winding radius of strands in wire ropes, the radius of pulley and the contact state between wire ropes and the pulley were compared, it is concluded that the winding radius gave more influences on the curvature. The best fit model between wire rope and pulley was obtained by theoretical calculation, it is found that the larger bending stress of wire was closed to the rope core, and the bending stress of the other layers in the strand was arranged in a regular pattern. Because of the different ways of twisting, the stretch bending model of contact between wire rope and pulley was different, and the stress of ordinary lay rope was greater than lang lay rope.The round strand rope of different twist was studied by applying alternating load, and the mechanical characteristics and failure causes of wire rope under different operating conditions were obtained, which provide a theoretical basis and technical support for the selection of wire rope and the matching performance of working condition, it is of good promotion significance for the safety operation of wire ropes with identical structure but different diameter.