Novel composite reinforced rubber sleeve flexible cable for coal mining machine

Abstract

The invention relates to a novel composite reinforced rubber sleeve flexible cable for a coal mining machine. A multi-core power line core conductor adopts a tinned copper wire multistrand structure; the conductor is externally provided with a first heat-resistant super-smooth thin film isolation strip, a high-strength power line insulator, a first double-sided semi-conducting cotton cloth strip, and a metal / fiber-woven shielding reinforcing layer in sequence; a control line core and a monitoring line core bunch strand use high-strength aramid fiber wires as a central strand, and the tinned strand multistrand and a metal-woven layer improve strength and flexibility; a multistrand line core stranding and heat-resistant super-smooth thin film isolation strip winding improve circumnutation, bending and slippage properties of the coal mining machine cable; the high-strength DPEM insulator, a high-strength inner sheath and a flame-retarded and high-strength outer sheath ensure strength and impact resistance of the cable; a multi-core power line core, a multi-core monitoring line core cable, a multi-core control line core cable and a plurality of semi-conducting adhesive tapes are twisted into an integrated assembly cable; and the assembly cable outside is wound with a second double-sided semi-conducting cotton cloth strip and an extruding flame-retarded sheath layer.

Description

technical field [0001] The invention relates to a cable, in particular to a bending-resistant, easy-sliding, high-strength mobile shearer cable. Background technique [0002] At present, the bending radius of cables for coal mining machines is usually much smaller than the normal bending radius of conventional cables. Due to mechanical stress such as frequent bending and stretching, the cores, especially the control and monitoring cores, are often broken, which seriously affects the service life. . For this reason, a Chinese patent once disclosed a "reinforced shearer soft cable" (China, announcement number CN201355565Y, announcement date December 2, 2009), the main structure includes: power core, control core, inner sheath Composed of sleeve, fiber reinforced layer and outer sheath, three power wire cores are arranged in an equilateral triangle, the control wire core is between two power wire cores, and the outer surface of the power wire core and the control wire core con...

AI Technical Summary

Problems solved by technology

But it still can't meet the requirements of the existing shearer

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