Abstract
Based on the fatigue life test method of steel wire ropes, this paper studies the fatigue performance reliability of elevator compensation steel wire ropes in actual field applications, so as to improve the reliability of wire rope field application and elevator operation safety. First, according to the actual field application of a certain type of wire rope combined with the equivalent test form, the life testing machine is calculated to have a loading force of 7.5KN and a bending fatigue number of 1.5 million times; then, pretension is applied to the wire rope to eliminate residual stress, and then the wire rope is subjected to 1.5 million bending fatigue life test. The analytical test results are: after the wire rope has completed 1.5 million bending fatigue tests, the measured comparison value of the wire rope diameter and the initial diameter is 98.08%, the elongation rate is 0.14%, the total broken wire is 0, and the worst lay length is 0. The worst strand is 0, adjacent broken wires are 0, the number of broken wires within one twist pitch is 0, and there are no obvious signs of wear and broken wires on the surface. The test results prove that this type of elevator compensating wire rope has very good fatigue performance reliability. The research in this paper is expected to provide an important reference for improving the reliability of wire rope field application and elevator safe operation.
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