Elevator steel wire rope

Abstract

The invention discloses an elevator steel wire rope. The elevator steel wire rope comprises a rope body, and the rope body is formed by wrapping and twisting one rope core with a plurality of outer-layer strands and a plurality of inner-layer strands; the lay length of the outer-layer strands is 7.5-8.5 times of the strand diameter of the outer-layer strands; the lay length of the inner-layer strands is 7.5-8.5 times of the strand diameter of the inner-layer strands; the lay length of the inner-layer strands is the same as the lay length of the outer-layer strands; and the lay length of the rope body is 6.55-6.60 times of the rope diameter of the rope body. The lay length of the elevator steel wire rope is increased, and gaps between strands in the elevator steel wire rope are increased; meanwhile, the lay length of the strands is reduced to counteract softness reduction after the lay length of the elevator steel wire rope is increased, and therefore the phenomenon that the strands protrude when the elevator steel wire rope passes through a traction wheel and a guide wheel is prevented, shaking is avoided, and the security is improved.

Description

technical field

[0001] The invention relates to the technical field of wire ropes, in particular to an elevator wire rope. Background technique

[0002] At present, the lay length of elevator wire ropes in the elevator industry is generally 6.3 to 6.4 times the diameter of the rope, so as to obtain the flexibility of elevator wire ropes and the appropriate diameter of elevator wire ropes. However, due to the small twisted strands and the small gap between strands, when passing the traction sheave and guide sheave, if affected by many factors such as the unevenness of the rope core and the unevenness of the lay length of the elevator wire rope, the elevator wire rope The strands will bulge when passing the traction sheave and guide sheave, and the elevator wire rope will vibrate, which will cause the entire car to vibrate and bring potential safety hazards. Therefore, it needs to be solved urgently. Contents of the invention

[0003] The object of the present invention is ...

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