Metallic shield type woven reinforced rubber jacketed flexible cable of coal cutter

Abstract

The invention discloses a metallic shield type woven reinforced rubber jacketed flexible cable of a coal cutter. The metallic shield type woven reinforced rubber jacketed flexible cable of the coal cutter comprises a protective layer, a plurality of power line cores and a plurality of control line cores, wherein the power line cores and the control line cores are wrapped inside the protective layer and are mutually intertwisted. The protective layer comprises an inner jacket, an outer jacket and a reinforcing layer arranged between the inner jacket and the outer jacket. The reinforcing layer is formed by weaving a plurality of high-strength fibers. The metallic shield type woven reinforced rubber jacketed flexible cable of the coal cutter has the advantages of being capable of retarding inflaming, high in strength, high in stretching performance, high in extrusion resistance, and resistant to oil, heat, shock and bending.

Description

technical field [0001] The invention relates to a mine cable, in particular to a metal shield braided reinforced rubber sheath flexible cable for a coal mining machine. Background technique [0002] The environmental conditions used by coal shearers are harsh, gas and coal dust are accumulated, and they are often subjected to various mechanical stresses such as dragging, pulling, grinding, bending, punching and squeezing, and sometimes it is the composite effect of two or more stresses. As a result, the cable is vulnerable to damage and reduces its service life. Therefore, a protective layer is needed to protect the cable. At present, the most commonly used armor layer is mostly steel wire, which can only bear tensile force and cannot bear extrusion force. Gas accumulation is easy to cause explosions. It is very necessary and important to develop low-smoke, low-halogen, environment-friendly flame-retardant cable material formulations for coal mines and to apply low-smoke, lo...

AI Technical Summary

Problems solved by technology

[0002] The environmental conditions used by coal shearers are harsh, gas and coal dust are accumulated, and they are often subjected to various mechanical stresses such as dragging, pulling, grinding, bending, punching and squeezing, and sometimes it is the composite effect of two or more stresses. As a result, the cable is easily damaged and the service life is reduced. Therefore, a protective layer is needed to protect the cable. At present, the most commonly used armor layer is mostly steel wire, which can only bear tensile force and cannot bear extrusion force.

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