Steel wire rope with single-stranded compound core for elevator

Abstract

The invention relates to a steel wire rope with a single-stranded compound core for an elevator. The steel wire rope with the single-stranded compound core for the elevator is characterized by comprising the single-stranded compound rope core and outer strands, and the outer side of the single-stranded compound rope core is wrapped with six to nine outer strands; the single-stranded compound rope core comprises ten to thirty-six outer wound steel wires and a fiber core, and the surface of each outer wound steel wire is plated with a layer of pure zinc or zinc-aluminum alloy. The steel wire rope with the single-stranded compound core for the elevator has the advantages that the corrosion resistance and the abrasion resistance are better, and the use requirements of medium and high speed elevators can be met.

Description

technical field [0001] The invention relates to a steel wire rope, in particular to a single-strand compound core steel wire rope for elevators. Background technique [0002] The elevator wire rope is an important safety component of the elevator. The traction force of the elevator is mainly generated by the friction between the elevator wire rope and the traction sheave. In order to obtain reliable and sufficient traction, in addition to making different designs in the configuration of the traction sheave, the number of ropes, the shape of the rope groove, etc., the structure of the wire rope, the surface hardness of the steel wire used for the wire rope, and the fatigue life of the wire rope There are strict requirements. [0003] At present, the types of elevator wire ropes mainly include sisal core wire ropes, semi-steel core wire ropes and full steel core wire ropes. They are all composed of rope cores and outer strands. Generally, 6 to 9 outer strands are wrapped on t...

AI Technical Summary

Problems solved by technology

[0004] The steel wire rope formed outside the fiber core has poor flexibility, and the matching with the traction sheave and the bending deflection of the guide are not very good.

[0005] The rope core of the all-steel core elevator steel wire rope is composed of certain steel wire strands. Its softness is poor, and the matching with the traction sheave and the bending deflection of the guide are not very good. matching with traction sheave

[0006] The rope core and the outer strands of the semi-steel core and full steel core elevator wire ropes have less contact support points within a lay length, and the extrusion wear between the outer strands and the rope core is more, which is prone to broken wires and reduces the fatigue life

In addition, the existing steel wire ropes for traction elevators, whether they are sisal core steel wire ropes, half steel core steel wire ropes or full steel core steel wire ropes, all steel wires are smooth steel wires. Changes, as well as the mutual extrusion between the outer layer strands and the rope core strands, the outer layer strands can continuously obtain grease supplement protection from the rope core, but the rope core itself is seriously worn due to insufficient oil supply and internal mutual extrusion. Therefore, the rope core is easily damaged due to wear and corrosion, resulting in a decrease in the supporting effect and a decrease in the fatigue life, which cannot well meet the customer's requirements for the use of medium and high-speed elevators

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