Bonding type tensile rubber jacketed flexible cable

Abstract

The invention provides a bonding type tensile rubber jacketed flexible cable. The cable comprises a metal conductor, an isolation layer, an inner insulation layer, an outer insulation layer, a centraltensile piece and a sheath layer; and the metal conductor is formed by bunching and then twisting tinned copper wires or bare copper wires. The isolation layer arranged outside the metal conductor ismade of non-woven fabric, the inner insulating layer arranged outside the isolating layer is made of ethylene propylene rubber, the outer insulating layer arranged outside the inner insulating layeris made of natural butadiene styrene rubber, the central tensile piece arranged in the cable is formed by extruding natural butadiene styrene rubber outside a steel wire rope, and the outer sheath arranged outside the cable is made of neoprene rubber compound. The cable has excellent electrical performance, torsion resistance, tensile strength and the like, and is suitable for elevators, cable cars, gantry cranes, mobile cranes, rack conveyors, transportation equipment and machine tools. The cable is also suitable for places with high mechanical and high bending frequency and flexible motor connecting wires.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a bonded tensile rubber-sheathed flexible cable, which is especially suitable for frequent moving places with high mechanical and high bending frequencies. Background technique [0002] When the cables are used in mobile equipment such as elevators, cranes, cable cars, gantry cranes, mobile cranes, and bench-type conveyors, the cables will move frequently and twist repeatedly, and at the same time bear a certain amount of tension, thereby shortening their use. It may even lead to the breakage of the wire core and the distortion of the surface of the cable sheath, which seriously affects the normal production operations. [0003] The rubber-sheathed flexible cable is composed of a sheath and an insulated core in the sheath. When the cable is moving, there will be relative slip between each insulated core, and between the insulated core and the sheath, resulting in the insulated cor...

AI Technical Summary

Problems solved by technology

[0002] When the cables are used in mobile equipment such as elevators, cranes, cable cars, gantry cranes, mobile cranes, and bench-type conveyors, the cables will move frequently and twist repeatedly, and at the same time bear a certain amount of tension, thereby shortening their use. It may even lead to the breakage of the core and the distortion of the surface of the cable sheath, which will seriously affect the normal production operations.

[0003] The rubber-sheathed flexible cable is composed of a sheath and an insulated core in the sheath. When the cable is moving, there will be relative slippage between the insulated cores, between the insulated core and the sheath, resulting in the insulated cores The friction between the insulating core and the sheath will cause the insulation layer and the sheath to wear out, and will also cause the cable structure to change, the stable pitch of the original cable core will be destroyed, and the surface of the sheath will be distorted. , with a twist-like appearance

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