Elliptical high-power coaxial flexible cable for coal mining machine

Abstract

The invention discloses an elliptic high power type coaxial flexible cable for a coal mining machine. The elliptic high power type coaxial flexible cable comprises an insulated wire core. The elliptic high power type coaxial flexible cable is characterized in that the exterior of the insulated wire core is provided with an outer conductor; the exterior of the outer conductor is provided with a metal anti-pressure tube; the exterior of the metal anti-pressure tube is wrapped with a fire-retardant layer in a squeezing manner; the exterior of the fire-retardant layer is provided with an elliptic aluminum sheath; two sides of the interior of the aluminum sheath are provided with symmetrical light units; a single-line protruding ridge is arranged at the exterior of the aluminum sheath; the height of the single-line protruding ridge is not smaller than 2 mm; and the width of the single-line protruding ridge is not smaller than 3 mm. The elliptic high power type coaxial flexible cable of the invention has the advantages of high self-bearing performance, high tensile strength, excellent fire-resistant performance, excellent flame-resistant performance, high stability, being easy to identify and the like.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to an elliptical high-power coaxial flexible cable for a coal mining machine. Background technique [0002] Today's world has entered the information age, and information has become a strategic resource for economic development and a unique factor of production. A modern information transmission system and a complete information service system established by combining long-distance communication networks, computers, video and other multimedia terminals, It has become an important symbol of the economic development of a country or region. [0003] Coaxial optical fiber cable for coal shearer is an important variety in information transmission, mainly used as antenna feeder for radio transmitting or receiving equipment, as well as internal connection or interconnection of various communication and electronic equipment. The coaxial cable is composed of inner conductor layer, insulating...

AI Technical Summary

Problems solved by technology

The coaxial cable is composed of inner conductor layer, insulating layer, outer conductor layer and sheath layer. The inner conductor layer and outer conductor layer are usually small in section and have poor self-supporting performance, especially when the cable is used under the working condition of not being buried in the ground. , due to poor load-bearing performance, the weight of the cable itself will cause the cable conductor to break, and it is also easy to damage the small cable conductor during construction

In the prior art, the support frame is used to support the cable, and the coaxial cable is protected by adding a support frame, which has a certain effect, but increases the laying cost and time, and the cable itself has poor load-bearing performance. Careful operation causes damage to the core of the cable; the fire resistance of the existing optical fiber composite cable is also very poor, which affects the performance of the cable in the case of burning; the shearer cable works in a dark environment and is difficult to identify

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