CN202373370U

CN202373370U - Dragging resistance electric drill cable for coal mine

Info

Publication number: CN202373370U
Application number: CN201120506387XU
Authority: CN
Inventors: 姜睿
Original assignee: Anhui Jinqiao Cable Co Ltd
Current assignee: Anhui Jinqiao Cable Co Ltd
Priority date: 2011-12-08
Filing date: 2011-12-08
Publication date: 2012-08-08
Anticipated expiration: 2021-12-08

Abstract

The utility model discloses a dragging resistance electric drill cable for a coal mine. The dragging resistance electric drill cable comprises a plurality of motive power wire core conductors and a grounding wire core conductor, wherein an insulation layer and a semiconducting shielding layer respectively and sequentially wrap outside the motive power wire core conductors, a wrapping layer wraps outside the grounding wire core conductor, the grounding wire core conductor wrapped by the wrapping layer and the motive power wire core conductors wrapped by the semiconducting shielding layer are mutually stranded into beams to form a cable core by taking a filling core as the center, the filling core consists of two relative elastic bodies with crescent cross sections and a center reinforced steel wire, and a sheath layer is formed outside the cable core through extrusion molding. The dragging resistance electric drill cable has the advantages that the structure design is simple and reasonable, the center of the cable core of the cable is provided with the relative crescent elastic bodies, and the center tensile steel wire is tightly held, so the whole structure compactness and the dragging resistance of the cable are improved, and in addition, the cable also has good insulation performance and shielding performance.

Description

A kind of colliery is with the anti-electric drill cable that pulls

Technical field:

The utility model relates to mining cable, relates in particular to a kind of colliery with the anti-electric drill cable that pulls.

Background technology:

Along with developing rapidly of Chinese national economy and improving constantly of living standards of the people, the requirement of quickening city special purpose power grid construction is urgent day by day.The people that make that cause fire incident because of cable press for a kind of special cable that can tackle strong fire damage capability of development.For the higher cable use occasion of fire protection requirement; The level of common in the past organic material fire-resisting cable exists tangible incompatibility, so national correlation department such as the Fire-Fighting Bureau under the Ministry of Public Security and other enterprises and institutions put on planning to the high performance fire-resisting cable of development for a long time.

MZ-0.3/0.5kV uses in the colliery electric drill Plastic-sheathed Cable, is People's Republic of China's coal industry (unification) design mining flame-retardant cable product, is used for the electric power connection line of rated voltage 0.3/0.5kV and following electric drill under the coal mine.

Pull demand that performance do not reach actual working environment with the structural compactness of electric drill Plastic-sheathed Cable with anti-for the MZ-0.3/0.5kV colliery of original design.

The utility model content:

In order to remedy the deficiency of prior art, the purpose of the utility model provides a kind of colliery and pulls the electric drill cable with anti-, has improved the structural compactness and the anti-performance that pulls of cable.

The technical scheme of the utility model is following:

The colliery is with the anti-electric drill cable that pulls; Comprise several power line core conductors, earth connection core conductor; It is characterized in that: described several power line core conductors are enclosed with insulating barrier, semiconductive shielding layer outward respectively successively; Described earth connection core conductor is wrapped with lapping layer; The earth connection core conductor of parcel lapping layer is that the mutual stranded bunchy in center constitutes cable core with the filled core with several power line core conductors of parcel semiconductive shielding layer, and the reinforcement steel wire that described filled core is meniscate elastomer and center by two relative cross sections constitutes, the outer extrusion moulding restrictive coating of cable core.

Described colliery pulls the electric drill cable with anti-, and it is characterized in that: the nominal cross of described several power line core conductors is 2.0～4.5mm ²

Described colliery pulls the electric drill cable with anti-, and it is characterized in that: the nominal cross of described earth connection core conductor is 2.5～4.0mm ²

Described colliery pulls the electric drill cable with anti-, and it is characterized in that: the thickness of described restrictive coating is 3.5mm.

The utility model has the advantages that:

The structural design advantages of simple of the utility model; Be provided with the tension steel wire that relative meniscate elastomer is held the center tightly through cable core center at cable; The compact overall structure property that has improved cable pulls performance with anti-, and this outer cable also has good insulation performance performance and shielding properties.

Description of drawings:

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

Embodiment:

Referring to Fig. 1:

The colliery is with the anti-electric drill cable that pulls; Comprise several power line core conductor 1, earth connection core conductor 2; Several power line core conductor 1 outer insulating barrier 3, semiconductive shielding layers 4 of being enclosed with successively respectively; Earth connection core conductor 2 is wrapped with lapping layer 5; Several power line core conductors 1 of the earth connection core conductor 2 of parcel lapping layer 5 and parcel semiconductive shielding layer 4 are that the mutual stranded bunchy in center constitutes cable core with the filled core, and filled core is that the reinforcement steel wire 7 at meniscate elastomer 6 and center constitutes the outer extrusion moulding restrictive coating 8 of cable core by two relative cross sections.

The nominal cross of several power line core conductors 1 is 2.0～4.5mm ²

The nominal cross of earth connection core conductor 2 is 2.5～4.0mm ²

The thickness of restrictive coating 8 is 3.5mm.

Cable specification, nominal thickness and external diameter meet the following table regulation:

Claims

1. a colliery is with the anti-electric drill cable that pulls; Comprise several power line core conductors, earth connection core conductor; It is characterized in that: described several power line core conductors are enclosed with insulating barrier, semiconductive shielding layer outward respectively successively; Described earth connection core conductor is wrapped with lapping layer; The earth connection core conductor of parcel lapping layer is that the mutual stranded bunchy in center constitutes cable core with the filled core with several power line core conductors of parcel semiconductive shielding layer, and the reinforcement steel wire that described filled core is meniscate elastomer and center by two relative cross sections constitutes, the outer extrusion moulding restrictive coating of cable core.

2. colliery according to claim 1 pulls the electric drill cable with anti-, and it is characterized in that: the nominal cross of described several power line core conductors is 2.0 ~ 4.5 mm ²

3. colliery according to claim 1 pulls the electric drill cable with anti-, and it is characterized in that: the nominal cross of described earth connection core conductor is 2.5 ~ 4.0 mm ²

Colliery according to claim 1 pulls the electric drill cable with anti-, and it is characterized in that: the thickness of described restrictive coating is 3.5mm.