Mining fluorescence cable for coal mining machine

Abstract

The invention discloses a mining fluorescence cable for a coal mining machine, which comprises a ground cable core, three power cable cores, three control cable cores and a first sheath. Three control cable cores are in parallel mutually and are arranged in a rectangular shape; the peripheries of the three control cable cores are coated with a second sheath; a peripheral diameter of the second sheath is equal to that of each power cable core; the second sheath and three power cable core are tightly attached to form a square arrangement; the ground cable core is arranged at a middle gap of the square arrangement; a torsion resistance braid is arranged between the square arrangement and the first sheath; and fluorescence color strips are respectively arranged on the surfaces of the first sheath, outer shielding layers and second insulating layers. According to the mining fluorescence cable for the coal mining machine, which is disclosed by the invention, the problem of bending breakage of the control cable cores is fundamentally solved; arrangement of gliding increasing layers reinforces the gliding property among the control cable cores; the cable is more stable in structure, the sheaths are difficult to wrinkle, and under the reinforcing action of the torsion resistance braid, the mechanical property of the sheaths is greatly improved; and the fluorescence color strips are arranged reasonably and comprehensively.

Description

technical field [0001] The invention relates to the technical field of cable structures, in particular to a fluorescent cable for a mining coal shearer. Background technique [0002] The mining shearer cable is mainly used for the connection between the underground shearer equipment and the power supply. With the back and forth operation of the shearer equipment, the shearer cable is retracted and dragged. During the coal mining process, the cable runs back and forth with the shearer, causing the cable to be repeatedly bent and deformed. After the cable is bent many times, the surface of the cable sheath is wrinkled, the structure of the cable core is unstable, and the control core is prone to breakage. The cable is often subjected to mechanical impact during operation, and the sheath is easily squeezed and cracked. In addition, the underground operating environment of the mine is relatively dark, and the insulated wire core is not easy to identify during cable installation...

AI Technical Summary

Problems solved by technology

During the coal mining process, the cable runs back and forth with the shearer, causing the cable to be repeatedly bent and deformed. After the cable has been bent many times, the surface of the cable sheath is wrinkled, the structure of the cable core is unstable, and the control core is prone to breakage

The cable is often subjected to mechanical shock during operation, and the sheath is easily squeezed and cracked

In addition, the operating environment under the mine is relatively dark, and the insulated wire core is not easy to identify during cable installation, laying and maintenance, and the cable is easily crushed by equipment during operation.

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