A large cross-section metal shielding flexible cable for mobile equipment

Abstract

The invention discloses a large-cross section metal shielding flexible cable for mobile equipment. A fiber weaving reinforcement layer, a twist-resistant sheath layer and a wear-resistant layer are sequentially arranged outside a cable core, the cable core comprises an insulation power line core group, a deformable ground wire core and a control line core group, the insulation power line core group comprises three or more than three power line cores, the deformable ground wire core is formed by stranding a tin-plated flexible conductor, the control line core group sequentially comprises a control cable core, an isolation layer, a metal shielding layer and a sheath layer from inside to outside, the control cable core is formed by stranding three or more than three insulation line cores, andthe power line cores and the control line core group wrap the deformable ground line core and are stranded to form the cable core. The large-cross section metal shielding flexible cable has excellentcapability of bending resistance, grinding resistance, twist resistance, extrusion resistance, wear resistance, interference resistance and interference prevention, the service lifetime of the existing current is remarkably prolonged, and the production safety is improved.

Description

technical field [0001] The invention relates to a cable, in particular to a large-section metal shielding flexible cable for mobile equipment. Background technique [0002] At present, the cables used in large-scale mobile equipment such as coal mining machines, shuttle cars, conveyors, excavators, electric shovels, bucket wheel machines, tunnel bolter machines and shield machines are called coal mining machine cables and coal mine shuttle car cables. , Mobile metal shielded monitoring flexible cables for belt conveyors, excavator cables for open pit mines, electric shovel cables, bucket wheel cables, shield machine cables, etc. This type of equipment needs to be moved frequently during operation, and the working environment is harsh. For example, the cable of a shearer will frequently bend and drag in an "8" or "S" shape during the movement. When the cable is bent, the inner core of the cable is subjected to a large tension, and the movement of the shearer causes a large l...

AI Technical Summary

Problems solved by technology

When the cable is bent, the inner core of the cable is subjected to a large tension, and the movement of the shearer causes a large longitudinal tension to the cable. The cable is also impacted by coal or falling rocks during work, which easily breaks the cable conductor. The insulation and sheath are damaged, the sheath is bulging, etc., resulting in a short circuit; when the electric shovel is working, the cable can be easily crushed by passing vehicles, and the cable insulation breakdown or leakage will be caused after being squeezed by stones; the electric shovel is moving It is necessary to drag the cable directly, and it is easy to cause the cable to twist and continue to drag, causing the cable to be broken; this requires the cable to have excellent anti-rolling, anti-torsion and anti-extrusion functions

[0003] With the wide application of frequency conversion technology, in addition to the above-mentioned mechanical properties, cables for mobile controllers must also have excellent anti-interference and interference suppression capabilities, while traditional shearer cables cannot meet this requirement

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