Cable

Abstract

The invention provides a cable, which belongs to the technical field of cables. The technical problem that the existing elevator cable has a complex and loose structure, high weight, low strength andshort service life is solved. The technical scheme of the invention is as follows: a cable includes a flat outer sheath and an optical fiber assembly wrapped in the outer sheath; the optical fiber assembly includes a main optical fiber line and a first aramid layer and a second aramid layer wrapping the main optical fiber line in turn; an inner sheath is arranged between the first aramid layer andthe second aramid layer; the first aramid layer, the second aramid layer and the inner sheath are all coaxial with the main optical fiber line; two bunches of strands are symmetrically arranged on the two sides of the optical fiber assembly; and each strand includes a center line and six branch lines arranged around the center line, the six branch lines are arranged close to the center line, andany two adjacent branch lines are close to each other. The elevator cable has the advantages of simple and compact structure, low production and use costs, low weight, low energy consumption, high overall strength and longer service life.

Description

technical field [0001] The invention belongs to the technical field of cables and relates to a cable. Background technique [0002] The elevator cables are designed with a special structure and have a long service life, maximizing the operating efficiency of elevator manufacturers. Elevator control cables provide overall electrical control over long suspension lengths while withstanding mechanical stress. The elevator cable can be used for long-distance suspension due to the steel wire bearing core. [0003] As a part of the wire and cable, the elevator cable has both the commonality of the wire and cable and the unique personality of the elevator cable in the use of raw materials. For example, the elevator cable must ensure a high degree of flexibility and firmness, so from the conductor material, to Insulating materials, then wrapping, braiding and finally sheathing materials, must keep the original characteristics of various materials while ensuring compliance with the ...

AI Technical Summary

Problems solved by technology

[0003] As a part of the wire and cable, the elevator cable has both the commonality of the wire and cable and the unique personality of the elevator cable in the use of raw materials. For example, the elevator cable must ensure a high degree of flexibility and firmness, so from the conductor material, to Insulating materials, then wrapping, braiding and finally sheathing materials, must keep the original characteristics of various materials while ensuring compliance with the overall requirements of elevator cables. Of course, in terms of structure, elevator cables are different from general elevator cables. The cable is also more complicated than the cable, so the production and production costs are also higher. For example, the invention patent with the authorized announcement number of CN 202534397U discloses a flat elevator cable with a shielded wire, which includes a flat outer sheath with a flat cross section. There are two bundles of shielded wires in the middle of the sleeve, and two bundles of elevator cable main wires are arranged side by side on both sides of the two bundles of shielded wires. The two bundles of elevator cable main wires and the two bundles of shielded wires are arranged symmetrically. The signal line of the elevator is combined with the cable carrying the elevator, so that the signal line goes up and down with the cable, so that the signal line is not easy to be damaged, but it also has the following shortcomings. 1. The structure of the entire elevator cable is relatively complicated, and its production and production 1. The cost of use is high, and the manufacturing process is relatively complicated; 2. The entire elevator cable has a large volume, a loose structure, and a large quality. While wasting materials, it increases the overall weight during the process of lifting and lowering with the elevator. , so that the energy consumption required for elevator lifting increases; 3. The main cable is directly in contact with the outer sheath, so the structure of the main cable part is relatively simple, and the main cable lacks corresponding protection. The main cable is easily damaged in a special environment. The service life is short, and the steel wire rope in the outer sheath, which acts as a reinforcement, is not coordinated with the entire elevator cable. Due to the large volume of the elevator cable, the steel wire rope has a small supporting effect on the entire elevator cable and cannot be supported for a long time The elevator cable is easy to break for a long time, resulting in a shorter service life of the entire elevator cable

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