Photoelectric composite cable for intelligent engineering device

Abstract

The invention discloses a photoelectric composite cable for an intelligent engineering device. The photoelectric composite cable comprises an irregularly-shaped vulcanized semi-conductive rubber cushion core, a power wire core, a control wire core, a monitoring wire core and a protective layer used for wrapping the wire cores, the irregularly-shaped vulcanized semi-conducive rubber cushion core isformed by an inverted-Y-shaped semi-conductive irregular support and an optical cable unit, the optical cable unit is formed by a tensile element, optical fibers surrounding at the outside of the tensile element, and a stainless steel spiral hose used for wrapping the optical fibers, the power wire core is formed by a power wire core conductor and a power wire core insulating layer used for wrapping the power wire core conductor, and the surface of the control wire core is sleeved by the monitoring wire core. According to the photoelectric composite cable, functions of electric energy transmission, signal control and transmission video communication etc. are provided, special performances including excellent extrusion resistance, impact resistance, bending resistance and direct dragging are also achieved, a night light-reflection function is also provided, the generation of toxic and harmful gas is avoided during combustion of the cable, and the photoelectric composite cable is in accordance with the development concept of green environmental protection.

Description

technical field [0001] The invention relates to the technical field of wire and cable manufacturing, in particular to a photoelectric composite cable for intelligent engineering equipment. Background technique [0002] The photoelectric composite cable is a composite optical fiber unit, which realizes the function of power supply or lightning protection and performs optical fiber communication at the same time. The existing photoelectric composite cable has an optical cable core between the power transmission cores, which can transmit light and electrical signals at the same time. In addition, the existing photoelectric composite cable has the advantages of light weight, convenient construction, and low cost. It is worth noting that Distributed optical fibers are highly sensitive to ambient temperature. Therefore, in high-voltage and ultra-high-voltage cross-linked cables, temperature-sensitive optical fibers are implanted to prepare photoelectric composite cables, and they ...

AI Technical Summary

Problems solved by technology

[0003] However, due to the relatively harsh working environment of coal mining projects, frequent start and stop, multi-stage speed change, and high failure rate during use, especially during night operations, the photoelectric composite cable is easily crushed by the carrying equipment, and it will be frequently damaged during the moving process. Severe bending and dragging of "8" or "S" shape occurs, and the photoelectric composite cable is also impacted by falling coals and stones. Therefore, the sheath and insulation layer of the cable are easily damaged and cracked, and the conductor And the optical fiber is also very easy to break, resulting in the interruption of the signal of the control equipment, short circuit, insulation breakdown or leakage of the line, which eventually leads to the interruption of the operation and brings huge economic losses.

[0004] At present, many enterprises and research institutions in my country are conducting research and development of optical fiber composite cables for coal mining machines. There are about 20 types of optical cable products produced, but the products are relatively single. In-depth research, the production design standards and product performance test specifications of related products need to be further unified and clearly defined

Therefore, photoelectric composite cables for comprehensive intelligent coal mining projects in China currently mainly rely on imports, and imported products have high material costs, complicated processing technology, high scrap rate of finished cables, and potential safety hazards.

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