CN103854790A

CN103854790A - Distortion-resistant tensile festoon cable

Info

Publication number: CN103854790A
Application number: CN201410060959.4A
Authority: CN
Inventors: 沈志海; 沈志荣; 丁同保; 闻广慧; 沈讯超
Original assignee: Anhui Huahai Special Cable Group Co Ltd
Current assignee: Anhui Huahai Special Cable Group Co Ltd
Priority date: 2014-02-23
Filing date: 2014-02-23
Publication date: 2014-06-11
Anticipated expiration: 2034-02-23
Also published as: CN103854790B

Abstract

The invention discloses a distortion-resistant tensile festoon cable comprising a cable core formed by longitudinally arranging a plurality of conductors in parallel. Each conductor comprises a guide line in the middle and an insulation layer wrapping the guide line, wherein the guide line is formed by twisting one or more anaerobic copper wires and one or more small-gauge wires. The cable core is wrapped with a non-woven wrapping layer, the non-woven wrapping layer is wrapped with a reinforcement layer, the reinforcement layer is wrapped with an inner sheath, a lubrication layer is arranged outside the inner sheath, and the lubrication layer is wrapped with an outer sheath. The distortion-resistant tensile festoon cable is simple in structure, good in electrical conductivity, high in distortion resistance, capable of conducting high-speed reciprocating movement and long in service life.

Description

A kind of warp resistance tension is dragged and is made cable

Technical field

The present invention relates to cable technology field, relate in particular to a kind of warp resistance tension and drag and make cable.

Background technology

At present, large scale hoisting machinery needs to obtain powerful electric power support in running.Traditional power cable can only provide electric power, can not do the movement of quick high frequency time together with equipment.The shortcomings such as traditional cable also exists and difficult installs, cost is large, cable is yielding and the life-span is short.Along with modern crane tool etc. is to the fast development of high-tech direction, the tonnage of lifting increases gradually, gait of march is constantly accelerated, traditional cable can not meet above-mentioned needs far away, often there is following problem: drag and make cable occupation mode and ordinary circumstance be not quite similar, cable body need to bear and come and go frequently bending, and common cabtyre cable is just simple bending and mobile, therefore should especially be paid close attention to, in order to avoid shorten the useful life of cable in the time of cable design.

Summary of the invention

In order to solve the technical problem existing in background technology, the present invention proposes a kind of warp resistance tension and drag and make cable, simple in structure, warp resistance in machine work, stretch-proof.

A kind of warp resistance tension that the present invention proposes is dragged and is made cable, comprises the cable core being formed by multiple conductors; Each conductor comprises and is positioned at the wire at middle part and is coated on the insulating barrier of wire outside, and wire adopts one or more copper free wires and one or more finer wire is stranded forms; At the outside coated nonwoven fabrics lapping layer of cable core, at the outside coated reinforced layer of nonwoven fabrics lapping layer, at the outside coated inner sheath of reinforced layer, inner sheath outside is provided with lubricating layer, the outside coated oversheath of lubricating layer.

Preferably, described nonwoven fabrics lapping layer surface has Z-Correct bump mapping Z-correct.

Preferably, described reinforced layer adopts fibrage reinforced layer.

Preferably, described insulating barrier adopts butyronitrile Insulation Material.

Preferably, described inner sheath and described oversheath all adopt butyronitrile protective cover material.

Preferably, described lubricating layer adopts thin metal bisque.

In the present invention, dragging of proposing makes the construction of cable simple.Wherein, wire adopts copper free wire and finer wire is stranded forms, and when having ensured the electric conductivity of conductor, has improved the stretch-resistance of conductor; Adopt nonwoven fabrics lapping layer and reinforced layer, improve the mechanical strength of cable, and drag while making when cable bend, for cable core activity provides space; Adopt the duplex sheath layer design of butyronitrile protective cover material, protection cable is wear-resistant tensile in the time of the equipment uses such as goliath, and improves the moisture retardant performance of cable; Lubricating layer is set between duplex sheath, while making oversheath be subject to twisting force, protection inner sheath and inner cable core, and damage or when inner cable core breaks down, oversheath is easy to peel off from cable outside at oversheath.

In preferred version of the present invention, nonwoven fabrics lapping layer surface has the woven gap of Z-Correct bump mapping Z-correct and braiding reinforced layer, increases cable bend and drags the cable core activity space while order; Insulating barrier and inner sheath and oversheath all adopt butyronitrile material, have strengthened the insulation of cable, anticorrosion, resistance to wear, the performance such as anti-aging;

Brief description of the drawings

Fig. 1 is that a kind of warp resistance tension that the present invention proposes is dragged the structural representation that makes cable.

Embodiment

As shown in Figure 1, Fig. 1 is that a kind of warp resistance tension that the present invention proposes is dragged the structural representation that makes cable.

With reference to Fig. 1, a kind of warp resistance tension that the present invention proposes is dragged and is made cable, comprises by the parallel vertical cable core forming of putting of nineteen conductor 1.

Conductor 1 is inner adopts the insulating barrier 2 of butyronitrile Insulation Material for adopting ten copper free wires and ten stranded wires of making 11 of finer wire in wire 11 outer claddings, when making 11 mutually insulateds of wire, strengthen conductor stretch-resistance.

At the outside coated nonwoven fabrics lapping layer 2 with Z-Correct bump mapping Z-correct that adopts of all conductors 1, nonwoven fabrics lapping layer 2 is strapped in together from outside by nineteen conductor 1, and the structure of all conductors 1 has been carried out to stable processing, and conductor 1 has activity space simultaneously.The outside covered fiber braiding of nonwoven fabrics lapping layer 2 reinforced layer 3, this fibrage reinforced layer 3 is light-duty protective layer, has improved the intensity of external jacket.

At fibrage reinforced layer 3 outer cladding inner sheaths 4, and the outside coated oversheath 6 of inner sheath 4, thin aluminium powder layer 5 between inner sheath and oversheath, be provided with.Inner sheath 4 and oversheath 6 all adopt butyronitrile protective cover material to make, its tensile wear-resistant excellent performance.Duplex sheath design has improved protection against the tide and the fire resistance of cable, and improves insulation, the wear-resisting and stretch-proof performance of cable.

In the time of cable under tension, the steel wire in conductor 1 has improved the stretch-resistance of conductor 1, has strengthened cable dragging the tensile property making in process.In the time that cable is twisted bending, the gap existing between the fiber of fibrage reinforced layer 3, and the lip-deep Z-Correct bump mapping Z-correct of nonwoven fabrics lapping layer 2, make cable core have sufficient activity space, and reduce the suffered stress of local conductor 1.In the time that external jacket is subject to torsion, thin aluminium powder layer 5 can make between internal layer cover 4 and oversheath 6 very lubricated, in the time that oversheath 6 is subject to twisting force, further protects inner sheath 4 and inner cable core, improves the warp resistance of cable.In addition damage or when cable core breaks down, thin aluminium powder layer 5 is easy to oversheath 6 to peel off from cable at oversheath 6.

Preferably, the nitrile rubber of insulating barrier 12 and inner sheath 4 and oversheath 6, comprises following component according to mass fraction: 50-70 part acrylonitrile-butadiene rubber, 30-50 part polyvinyl chloride resin powder, 2-3 part vulcanizing agent, 2.5-4.5 part promoter, 4-6 part zinc oxide, 2-3 part stearic acid, 8-12 part precipitated silica, 10-15 part paraffin, 25-30 part aluminium hydroxide; Particularly, 70 parts of acrylonitrile-butadiene rubbers, 40 parts of polyvinyl chloride resin powder, 3 parts of vulcanizing agents, 4 parts of promoter, 5 parts of zinc oxide, 2 parts of stearic acid, 10 parts of precipitated silicas, 12 parts of paraffin, 25 parts of aluminium hydroxides.This nitrile rubber, there is insulation, anticorrosion, resistance to wear good, the advantage such as anti-aging, simultaneously white carbon add the mechanical strength that has strengthened acrylonitrile-butadiene rubber, adding of paraffin and aluminium hydroxide makes nitrile rubber good flame resistance, further improved the warp resistance tensile property of cable.

This warp resistance tension that the present embodiment proposes is dragged and is made cable, simple in structure, good conductivity, can make high speed and repeatedly moves and long service life.After tested, electric pressure is 0.45/0.75kV; Withstand voltage test is 3.0/5.0kV/min; It is 70 DEG C that conductor allows maximum operating temperature for a long time; The minimum median of insulation tensile strength is 10.0Mpa; The minimum median of fracture extension rate is 300; The maximum bearing tension of cable is (amass+steel wire external diameter * 1000 of 68* cross-sectional area of conductor) N:; 8 times of bendings of Integral cable 15000 times constantly; Bending radius is not less than 8 times of the outside diameter of cable.

The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.

Claims

1. warp resistance tension is dragged and is made a cable, it is characterized in that, comprises by the parallel vertical cable core forming of putting of multiple conductors (1); Each conductor (1) comprises and is positioned at the wire (11) at middle part and is coated on the outside insulating barrier (12) of wire (11), and wire (11) adopts one or more copper free wires and one or more finer wire is stranded forms; At the outside coated nonwoven fabrics lapping layer (2) of cable core, at the outside coated reinforced layer (3) of nonwoven fabrics lapping layer (2), at the outside coated inner sheath (4) of reinforced layer (3), inner sheath (4) outside is provided with lubricating layer (5), the outside coated oversheath (6) of lubricating layer (5).

2. warp resistance tension according to claim 1 is dragged and is made cable, it is characterized in that, described nonwoven fabrics lapping layer (2) surface has Z-Correct bump mapping Z-correct.

3. warp resistance tension according to claim 1 is dragged and is made cable, it is characterized in that, described reinforced layer (3) adopts fibrage reinforced layer.

4. warp resistance tension according to claim 1 is dragged and is made cable, it is characterized in that, described insulating barrier (12) adopts butyronitrile Insulation Material.

5. warp resistance tension according to claim 1 is dragged and is made cable, it is characterized in that, described inner sheath (4) and described oversheath (6) all adopt butyronitrile protective cover material.

6. warp resistance tension according to claim 1 is dragged and is made cable, it is characterized in that, described lubricating layer (5) adopts thin metal bisque.