Spiral-skeleton self-bearing type multi-core cable

Abstract

The cable possesses cable jacket, insulated conductor inside cable jacket, helix framework in center of cable jacket, strength rope in center of helix framework. At least one helix wire groove on helix framework stretched surrounding cable axis, and insulated conductor is embedded to the wire groove. Features of the invented cable are: even stress, any bending direction with high degree of freedom, steel rope supporting all weight of cable, current carrying part of cable not in tension, suspended and laid in horizontal, vertical any direction as well as Light weight and small size.

Description

Technical field [0001] The invention relates to a cable, especially a self-supporting cable. Background technique [0002] Cables are generally used to conduct current, but in some occasions, they also need to be able to carry. Deep-water robots, deep well probes, deep well submersible pumps, ground mobile equipment, high-altitude lifting ladders, elevators and other occasions need to use self-supporting cables. Generally, the common structures are as follows: hang the cable under a steel cable, place a steel cable on both sides of the conductive core of the multi-strand cable, armor the steel wire or steel belt on the outer layer of the cable, and place a steel cable in the center of the cable. Place cables and more. Although the structure of the suspension cable under the steel cable is easy to manufacture, the degree of freedom of the bending direction is limited when it is bent. Put a steel cable structure each. When the cable is bent, the bending direction is also res...

AI Technical Summary

Problems solved by technology

Although the structure of the suspension cable under the steel cable is easy to manufacture, the degree of freedom of the bending direction is limited when it is bent. Put a steel cable structure each. When the cable is bent, the bending direction is also restricted, and the cable is relatively large and the production cost increases; the cable with the outer armor is heavy and not easy to bend; the structure of placing the steel cable in the center of the cable , the central steel cable has low adhesion to the multi-strand cable core, and the central steel cable is easy to be pulled out

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