CN202584776U

CN202584776U - Anti-corrosion and fire-resistant type flexible cable for coal mining machine

Info

Publication number: CN202584776U
Application number: CN 201220123332
Authority: CN
Inventors: 黄诚
Original assignee: Anhui Pacific Cable Group Co Ltd
Current assignee: ANHUI PACIFIC CABLE CO., LTD.
Priority date: 2012-03-28
Filing date: 2012-03-28
Publication date: 2012-12-05
Anticipated expiration: 2022-03-28

Abstract

The utility model discloses an anti-corrosion and fire-resistant type flexible cable for a coal mining machine, comprising four control wire core conductors and three power wire core conductors, wherein semi-conducting layers and first insulating layers are sequentially wrapped outside the four control wire core conductors respectively, the four control wire core conductors wrapped with the first insulating layer are mutually twisted into a bundle, and then are lapped with a polyester film tape to form a lapping layer; second insulating layers, fire-resistant layers and isolating layers are sequentially wrapped outside the three power wire core conductors respectively; and loose sleeves are arranged outside three grounding wire cores respectively, the three power wire core conductors wrapped with the isolating layers and the three grounding wire cores wrapped with the loose sleeves are distributed at the outer sides of the four control wire core conductors wrapped with the lapping layer in a triangle shape to form a cable core, and an inner sheath layer, a reinforcing layer, an outer sheath layer, and an anti-corrosion coating are extruded outside the cable core. The anti-corrosion and fire-resistant type flexible cable for a coal mining machine disclosed by the utility model is good in conducting performance, and an enough insulating strength exists among the wire cores; additionally, the cable is good in anti-salt-fog performance, acid-base property and fire-resistant performance, thus being prolonged in service life.

Description

A kind of anticorrosion fire safe type soft cable of coal mining machine

Technical field:

The utility model relates to the mining cable technical field, relates in particular to a kind of anticorrosion fire safe type soft cable of coal mining machine.

Background technology:

Mining cable is meant that the ground installation that coal mining industry will is used uses the electric wire cable product with underground equipment. comprising coal-winning machine, transporter, communicate by letter, illumination and signalling arrangement use cable; And the electric drill cable, the feed cable that cap lamp electric wire and mobile substation, down-hole are used etc.

Electric cable for coal mining machine is the mining flame-retardant cable of People's Republic of China's coal industry (unification) design, and product is applicable to that the power supply of coal-winning machine and similar devices connects.

In cable and coal-winning machine equipment junction, general Cable Bending Radius is all especially little, and original coal-winning machine fire resistance, insulation property and anti-salt fog, soda acid performance do not reach the demand of actual working environment, causes shorten the useful life of cable.

The utility model content:

To the prior art problem, the purpose of the utility model provides a kind of anticorrosion fire safe type soft cable of coal mining machine, reasonable in design, and fire resistance, insulation property and anti-salt fog, soda acid superior performance have satisfied the demand of actual working environment.

The technical scheme of the utility model is following:

Anticorrosion fire safe type soft cable of coal mining machine; Comprise four control line core conductors, three power line core conductors, three earth connection core conductors; It is characterized in that: described four control line core conductors are enclosed with semi-conductive layer, first insulating barrier outward respectively successively; Wrap up the mutual stranded bunchy of four control line core conductors of first insulating barrier, the outer wrapped formation lapping layer of mylar tape that is surrounded with behind the bunchy; Three power line core conductors are enclosed with second insulating barrier, flame retardant coating, separator outward respectively successively; Three ground connection cores are respectively equipped with loose sleeve pipe outward; Three power line core conductors of parcel separator constitute cable core with four control line core conductors outsides that three ground connection cores that wrap up loose sleeve pipe all are distributed in the parcel lapping layer in a triangle; Cable core squeezes outward and is provided with inner restrictive coating, reinforced layer, external sheath layer, and the external sheath layer outer wall is provided with corrosion-inhibiting coating.

Described anticorrosion fire safe type soft cable of coal mining machine is characterized in that: described flame retardant coating adopts the overlapping wrapped formation of synthetic mica tape built-in one deck mylar tape.

The utility model has the advantages that:

Conducting electricity very well of the utility model; Enough dielectric strengths are arranged between the core, be difficult for outside the failed because, cable also is provided with corrosion-inhibiting coating outward; The anti-salt fog performance and the Acidity of Aikalinity that can effectively improve cable are effectively promoted; Lapping layer and flame retardant coating all adopt refractory material to process, and have improved fire resistance, have prolonged the useful life of cable.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Embodiment:

Referring to Fig. 1:

Anticorrosion fire safe type soft cable of coal mining machine; Comprise four control line core conductors 1, three power line core conductors 2, three earth connection core conductors 3; Four control line core conductor 1 outer semi-conductive layer 4, first insulating barriers 5 of being enclosed with successively respectively; Wrap up four control line core conductors, the 1 mutual stranded bunchy of first insulating barrier 5, the outer wrapped formation lapping layer 6 of mylar tape that is surrounded with behind the bunchy; Three power line core conductors 2 are outer to be enclosed with second insulating barrier 7, flame retardant coating 8, separator 9 respectively successively; Be respectively equipped with loose sleeve pipe 10 outside three ground connection cores 3; Three power line core conductors 1 of parcel separator 9 all are distributed in four control line core conductor 1 outsides formation cable cores that wrap up lapping layer 6 in a triangle with three ground connection cores 3 of the loose sleeve pipe 10 of parcel; Cable core is provided with restrictive coating 11, armour 12, external sheath layer 13 outward, and external sheath layer 13 outer walls are provided with corrosion-inhibiting coating 14.

Flame retardant coating 8 adopts the overlapping wrapped formation of synthetic mica tape built-in one deck mylar tape.

Claims

1. anticorrosion fire safe type soft cable of coal mining machine; Comprise four control line core conductors, three power line core conductors, three earth connection core conductors; It is characterized in that: described four control line core conductors are enclosed with semi-conductive layer, first insulating barrier outward respectively successively; Wrap up the mutual stranded bunchy of four control line core conductors of first insulating barrier, the outer wrapped formation lapping layer of mylar tape that is surrounded with behind the bunchy; Three power line core conductors are enclosed with second insulating barrier, flame retardant coating, separator outward respectively successively; Three ground connection cores are respectively equipped with loose sleeve pipe outward; Three power line core conductors of parcel separator constitute cable core with four control line core conductors outsides that three ground connection cores that wrap up loose sleeve pipe all are distributed in the parcel lapping layer in a triangle; Cable core squeezes outward and is provided with inner restrictive coating, reinforced layer, external sheath layer, and the external sheath layer outer wall is provided with corrosion-inhibiting coating.

2. anticorrosion fire safe type soft cable of coal mining machine according to claim 1 is characterized in that: described flame retardant coating adopts the overlapping wrapped formation of synthetic mica tape built-in one deck mylar tape.