CN103971825A

CN103971825A - Anti-torsion cable

Info

Publication number: CN103971825A
Application number: CN201410168547.2A
Authority: CN
Inventors: 张元船; 华齐东; 杨茂明; 于杰; 陆秀国
Original assignee: Anhui Huining Electric and Measuring Appliance Co Ltd
Current assignee: Anhui Huining Electric and Measuring Appliance Co Ltd
Priority date: 2014-04-24
Filing date: 2014-04-24
Publication date: 2014-08-06

Abstract

The invention discloses an anti-torsion cable. The anti-torsion cable comprises an inner cable core. An anti-torsion layer formed by braiding rubber ropes is wrapped outside the inner cable core. A fluoroplastic insulating layer, a steel wire rope armor layer which is formed by twisting steel wires into bundles and an outer sheath layer are sequentially wrapped outside the anti-torsion layer formed by braiding the rubber ropes. An anti-torsion tube is arranged between the steel wire rope armor layer formed by twisting the steel wires into the bundles and the outer sheath layer. An inner rubber cushion layer is arranged on the inner wall of the anti-torsion tube. Multiple concave cavities are formed in the inner rubber cushion layer and are filled with polyester silk. The anti-torsion cable is simple in structural improvement; multiple anti-torsion structures are additionally arranged in a cable structural layer, so that the overall anti-torsion performance of the cable is improved, the overall strength of the cable is not affected, and the use safety is guaranteed.

Description

Anti-rotational cable

technical field:

The present invention relates to cable, is mainly a kind of anti-rotational cable.

background technology:

Applicable electric wire is reaching under certain index condition in mine, also require it to there is strong resistance to torsion, under a stable condition, can realize upset, or synchronous bending is stretched and is drawn, the cable of existing use is after long-time use, twisting property variation, easily causes the inner core in electric wire to occur disconnected core phenomenon, the interruption that causes signal to transmit.

Traditional cable jacket material fire resistance is poor, once breaking out of fire in building, easily burning, transmit flare, expand fire scope, and mostly contain halogen, burning can produce a large amount of dense smoke and the very strong hydrogen halide of corrosivity, jeopardizes people's life, harm equipment and contaminated environment.

summary of the invention:

Technical problem to be solved by this invention is to provide a kind of anti-rotational cable, its architecture advances is simple, has additional multiple resistance to torsion structure in construction of cable layer, has improved the resistance to torsion of whole cable, do not affect the intensity of whole cable, ensured the fail safe using simultaneously.Not halogen-containing, the low cigarette of cable jacket material of the present invention, oxygen index are high.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of anti-rotational cable, include cable inner core, it is characterized in that: described cable inner core is coated with the antitorque layer that one deck is woven by rubber rope, outer steel wire rope armour and the external sheath layer that is coated with successively fluoroplastic insulation layer, the stranded bunchy of steel wire of antitorque layer of described rubber rope braiding, between the steel wire rope armour of the stranded bunchy of described steel wire and external sheath layer, be provided with an antitorque cylinder, described antitorque cylinder inwall is provided with one deck rubber inner cushion layer, on described rubber inner cushion layer, have multiple cavitys, in cavity, be filled with dacron thread.

Described external sheath layer material is made up of the raw material of following weight portion: methyl vinyl silicone rubber 45-65, ethylene propylene diene rubber 30-40, polyether-ether-ketone 10-15, gas-phase silica 25-35, dimethicone 10-15, 2, 5-dimethyl-2, two (tert-butyl peroxide) hexane 2-3 of 5-, mica powder 16-22, nm-class boron nitride 4-8, zinc oxide 2-3, stearic acid 1-2, two-(the silica-based propyl group of γ-triethoxy) tetrasulfide 1-2, APP 5-10, magnesium hydroxide 10-15, anti-aging agent RD 2-3, Vulcanization accelerator TMTD 1-2, modification complex mineral filler 20-25,

The preparation method of described modification complex mineral filler is as follows: (1) in mass ratio 4-8:3-5:2-3:1 takes barite, olivine, attapulgite, illite and mixes, pulverize, cross 50-100 mesh sieve, then at 820-880 DEG C of temperature lower calcination 20-30min, continue to be warming up to 1050-1150 DEG C, calcining 2-3h, shrend, dries; (2) get and be equivalent to 4 of absolute ethyl alcohol doubly of complex mineral filler weight 2-3,40-50%, the glyoxal ethyline of 4'-MDA epoxy resin, 2-4% mixes with the compounded mix that step (2) is processed, heating water bath is to 120-140 DEG C, 500-1000rpm high-speed stirred 0.5-1h, filter, dry; (3) get and be equivalent to the chlorosulfonated polyethylene of complex mineral filler weight 40-50%, the PEN of 15-25%, the monopalmitin of 2-4%, the calcium stearate of 1-2%, the γ-(2 of 0.5-1%, 3-glycidoxy) the complex mineral filler processed of propyl trimethoxy silicane and step (2) together drops into double screw extruder after mixing and carries out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of described external sheath layer material, comprise the following steps: take in methyl vinyl silicone rubber, gas-phase silica, nm-class boron nitride, two-(the silica-based propyl group of γ-triethoxy) tetrasulfide, zinc oxide, the mill of stearic acid input, be mixing 5-10min at 80-90 DEG C of temperature in roller temperature, then dancer rools temperature is to 55-65 DEG C, add the mixing 4-8min of all the other raw materials, park 8-12h, discharging.

Advantage of the present invention is:

Architecture advances of the present invention is simple, has additional multiple resistance to torsion structure in construction of cable layer, has improved the resistance to torsion of whole cable, does not affect the intensity of whole cable simultaneously, has ensured the fail safe using.Cable jacket material of the present invention has excellent fire-resistant, fire-retardant and self-gravitation performance, and oxygen index is high, low smoke, zero halogen, can normally work in fire environment, and there is good mechanical performance, resistance to ag(e)ing, chemical stability and environmental stress crack resistance, safe, environment friendly and pollution-free.

brief description of the drawings:

Fig. 1 is structural representation of the present invention.

embodiment:

Referring to Fig. 1, a kind of anti-rotational cable, include cable inner core 1, described cable inner core 1 is coated with the antitorque layer 2 that one deck is woven by rubber rope, outer steel wire rope armour 4 and the external sheath layer 5 that is coated with successively fluoroplastic insulation layer 3, the stranded bunchy of steel wire of antitorque layer 2 of described rubber rope braiding, between the steel wire rope armour 4 of the stranded bunchy of described steel wire and external sheath layer 5, be provided with an antitorque cylinder 6, described antitorque cylinder 6 inwalls are provided with one deck rubber inner cushion layer 7, on described rubber inner cushion layer, have multiple cavitys 8, in cavity 8, be filled with dacron thread 9.

Described external sheath layer 5 materials are made up of the raw material of following weight portion: methyl vinyl silicone rubber 55, ethylene propylene diene rubber 35, polyether-ether-ketone 10, gas-phase silica 30, dimethicone 12,2,5-dimethyl-2, two (tert-butyl peroxide) hexanes 2.5 of 5-, mica powder 18, nm-class boron nitride 6, zinc oxide 2, stearic acid 1.5, two-(the silica-based propyl group of γ-triethoxy) tetrasulfide 1.5, APP 8, magnesium hydroxide 15, anti-aging agent RD 2, Vulcanization accelerator TMTD 1, modification complex mineral filler 22;

The preparation method of described modification complex mineral filler is as follows: (1) in mass ratio 6:4:2:1 takes barite, olivine, attapulgite, illite and mixes, pulverize, cross 80 mesh sieves, then at 840 DEG C of temperature lower calcination 25min, continue to be warming up to 1080 DEG C, calcining 2h, shrend, dries; (2) get be equivalent to 2 times of complex mineral filler weight absolute ethyl alcohol, 40% 4,4'-MDA epoxy resin, 3% glyoxal ethyline mix with the compounded mix that step (2) is processed, heating water bath to 130 DEG C, 800rpm high-speed stirred 0.5h, filter, dry; (3) get and be equivalent to the chlorosulfonated polyethylene of complex mineral filler weight 45%, 20% PEN, 3% monopalmitin, 1% calcium stearate, 0.5% γ-(2,3-glycidoxy) the complex mineral filler processed of propyl trimethoxy silicane and step (2) together drops into double screw extruder after mixing and carries out melt blending, then extruding pelletization, naturally cool to room temperature, be modification complex mineral filler.

The preparation method of described external sheath layer 5 materials, comprise the following steps: take in methyl vinyl silicone rubber, gas-phase silica, nm-class boron nitride, two-(the silica-based propyl group of γ-triethoxy) tetrasulfide, zinc oxide, the mill of stearic acid input, be mixing 5-10min at 80-90 DEG C of temperature in roller temperature, then dancer rools temperature is to 55-65 DEG C, add the mixing 4-8min of all the other raw materials, park 8-12h, discharging.

The results of property of the external sheath layer 5 making after testing, is as following table:

Claims

1. an anti-rotational cable, include cable inner core, it is characterized in that: described cable inner core is coated with the antitorque layer that one deck is woven by rubber rope, outer steel wire rope armour and the external sheath layer that is coated with successively fluoroplastic insulation layer, the stranded bunchy of steel wire of antitorque layer of described rubber rope braiding, between the steel wire rope armour of the stranded bunchy of described steel wire and external sheath layer, be provided with an antitorque cylinder, described antitorque cylinder inwall is provided with one deck rubber inner cushion layer, on described rubber inner cushion layer, have multiple cavitys, in cavity, be filled with dacron thread.

2. anti-rotational cable according to claim 1, external sheath layer material described in it is characterized in that is made up of the raw material of following weight portion: methyl vinyl silicone rubber 45-65, ethylene propylene diene rubber 30-40, polyether-ether-ketone 10-15, gas-phase silica 25-35, dimethicone 10-15, 2, 5-dimethyl-2, two (tert-butyl peroxide) hexane 2-3 of 5-, mica powder 16-22, nm-class boron nitride 4-8, zinc oxide 2-3, stearic acid 1-2, two-(the silica-based propyl group of γ-triethoxy) tetrasulfide 1-2, APP 5-10, magnesium hydroxide 10-15, anti-aging agent RD 2-3, Vulcanization accelerator TMTD 1-2, modification complex mineral filler 20-25,

3. anti-rotational cable according to claim 1, it is characterized in that the preparation method of described external sheath layer material, it is characterized in that comprising the following steps: take in methyl vinyl silicone rubber, gas-phase silica, nm-class boron nitride, two-(the silica-based propyl group of γ-triethoxy) tetrasulfide, zinc oxide, the mill of stearic acid input, be mixing 5-10min at 80-90 DEG C of temperature in roller temperature, then dancer rools temperature is to 55-65 DEG C, add the mixing 4-8min of all the other raw materials, park 8-12h, discharging.