Drag-and-drop photoelectric composite cable and production process for aboveground mining engineering

Abstract

The invention discloses a towing photoelectric composite cable for ground mining engineering, which mainly includes a main core, a monitoring core, a center filling, a control core, an optical cable, a ground core, a reinforcing layer and an outer sheath. The main core conductor is formed by twisting and re-twisting several tinned copper wire bundles. The insulating layer of the main core is made of continuous vulcanization of ethylene-propylene rubber, and the insulating layer of the main core is extruded outside the main core conductor. Shielding includes braided shielding and wrapping shielding. The braided shielding layer is composed of a braided conductor as a strand of braided wire and nylon yarn and is braided outside the main core insulation layer. A semi-conductive nylon tape is wrapped around the braided shield to form a wrapped shield. The center is filled with a saddle-shaped core pad, and the saddle-shaped core pad is extruded outside the monitoring wire core with semi-conductive rubber or neoprene material. The outer sheath is extruded with neoprene rubber material outside the 3 main cores, control cores, optical cables, ground cores and center filling of the stranded cable. A reinforcement layer is disposed in the outer sheath.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a towed photoelectric composite cable for ground mining engineering and a production process thereof. Background technique [0002] Electrical control technology is of great significance in coal mine production. With the continuous improvement of coal mine mechanization and automation, unmanned operation and intelligence will be used in coal mining projects. Control cores and optical fiber units need to be added to cables. Towing photoelectric composite cables, due to the complexity of the working conditions, the cables are in a moving, dragging and bending state for a long time, so the mechanical life of the cables is very short. Contents of the invention [0003] The object of the present invention is to provide a drag photoelectric composite cable for ground mining engineering with simple structure and beneficial to prolong service life and its production process. [0...

AI Technical Summary

Problems solved by technology

[0002] Electrical control technology is of great significance in coal mine production. With the continuous improvement of coal mine mechanization and automation, unmanned operation and intelligence will be used in coal mining projects. Control cores and optical fiber units need to be added to cables. Towing photoelectric composite cables, due to the complexity of the working conditions, the cables are in a moving, dragging and bending state for a long time, so the mechanical life of the cables is very short

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