CN105845210A

CN105845210A - Rack-shaped high-strength underground mine line cable

Info

Publication number: CN105845210A
Application number: CN201610289007.9A
Authority: CN
Inventors: 施婷婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-26
Filing date: 2016-04-26
Publication date: 2016-08-10

Abstract

The invention discloses a rack-shaped high-strength underground mine line cable comprising an internal core frame, three leads, a wrapping layer, a shielding layer which wraps outside an internal wrapping layer and an external wrapping layer which wraps outside the shielding layer. The external wrapping layer is externally provided with a steel wire braiding armored layer, an insulating silica gel heat radiating layer and heat radiating tapes which are arranged in turn. The internal core frame is arranged along the axial direction of the cable. Each lead comprises, from inside to outside in turn, a conductor, an insulating layer which wraps outside the conductor, an internal shielding sleeve which wraps outside the insulating layer and an internal sheath which wraps outside the internal shielding sleeve. A heat conducting layer wraps outside the steel wire braiding armored layer. The insulating silica gel heat radiating layer wraps outside the heat conducting layer in an extruding way. Multiple heat radiating tapes wrap outside the insulating silica gel heat radiating layer. The spiral back surface of the heat radiating tapes is provided with multiple tooth-shaped bulges. According to the rack-shaped high-strength underground mine line cable, the situation of twisting of stranded wires and mixed wires can be effectively prevented so that wiring and line installation are facilitated.

Description

A kind of spline-simulating high intensity Underground Mine line cord

Technical field

The present invention relates to downhole cable technical field, be specially a kind of spline-simulating high intensity Underground Mine line cord.

Background technology

Mine cable is commonly referred to as the industrial ground installation of coal mining and underground equipment electric wire cable product, wherein Including the communication on coal-winning machine, transporter, illumination and signalling arrangement cable, and electric drill cable, cap lamp electric wire and down-hole The feed cable etc. of mobile substation.And due to the circumstance complication under mine, so mine cable is often collided frequently And bending, traditional mine cable impact resistant destroy and bend resistance ability than relatively low, service life is short, substantially can not Meeting the condition of modern underground work, therefore survivability and the bending strength of mine cable are in urgent need to be improved.

To this end, Chinese patent CN205050598U discloses a kind of high-strength mining cable, including: strengthening core, circumference divide The cloth three of the wires in strengthening core periphery, the intermediate jacket being positioned at outside three of the wires, the armor being coated on outside intermediate jacket and The oversheath being coated on outside armor.Each first elastic plate of strengthening core and the second coupled elastic plate collectively form Its cross section of structure has T-type structure；Conductor in the middle part of wire is formed by many copper wires are stranded；Armor is compiled by a plurality of steel band Knit and form；Gap between wire and intermediate jacket is filled with padded coaming.This invention can not only improve the bending resistance of cable Intensity, moreover it is possible to improve the overall mechanical properties of cable；Additionally the setting of padded coaming can slow down the frictional force that wire is subject to, Reduce the risk of wire abrasion broken string, improve the security performance of cable；But in actual application, walking of downhole cable Line is installed often in order to save overcast or conduit line and use multi-thread parallel form, the electricity of tradition smooth exterior structure Easily there is the situation of twisted wire in mounting structure that is multi-thread and that walk and needs a lot of supplementary structures to carry out Progressive symmetric erythrokeratodermia in cable top layer Compartment positions, and installs and bothers very much, it would be highly desirable to improve.

Summary of the invention

It is an object of the invention to provide a kind of spline-simulating high intensity Underground Mine line cord, to solve in above-mentioned background technology The problem proposed.

For achieving the above object, the present invention provides following technical scheme:

A kind of spline-simulating high intensity Underground Mine line cord, including: inner core frame, three of the wires, lapping layer, be coated in Screen layer outside lapping layer and the outer lapping layer being coated on outside screen layer, be disposed with steel wire woven armored outside lapping layer outside Layer, insulation silica gel heat dissipating layer and heat-radiation belt；Inner core frame is made up of elastomeric material, and inner core frame is axial arranged along cable, inner core frame Including three the first elastic plates and three the second elastic plates, one end of three the first elastic plates is connected the other end and three the second bullets Property plate is vertically connected one by one near the side of the first elastic plate, and three of the wires is circumferentially distributed around inner core frame, and every is led Line is resisted against second elastic plate side away from the first elastic plate one by one near inner core frame side, away from inner core frame side against On the inner surface of interior lapping layer, described each wire include the most successively conductor, the insulating barrier being coated on outside conductor, The inner shield set being coated on outside insulating barrier, the inner sheath being coated on outside inner shield set；Steel wire woven armored layer is coated with heat conduction Layer, be extruded with outside heat-conducting layer insulation silica gel heat dissipating layer, insulation silica gel heat dissipating layer outside wrap up some heat-radiation belts, heat-radiation belt in The spiral helicine back side is provided with some detent projection.

As the present invention further technical scheme, the second elastic plate of each first elastic plate and corresponding connection is common The structure constituted has the cross section of T-type structure, and three the first elastic plates are circularly and evenly distributed.

As the present invention further technical scheme, in the gap between described three cable cores and interior lapping layer, it is filled with buffering Material.

Compared with prior art, the present invention can not only improve the bending strength of cable, moreover it is possible to improves the overall mechanicalness of cable Energy；The detent projection of cable outer layer is equivalent to positive stop strip, can also improve optical cable outer layer while playing spacing positioning action Area of dissipation, is effectively diffused into the heat that cable produces in air, for the cable of multi-thread parallel layout, due to cable phase Detent projection between Hu serves good spacing fixation, and the situation effectively preventing twisted wire and swinging cross to be wound around occurs, for walking Line and circuit are installed and are provided convenience.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention a kind of spline-simulating high intensity Underground Mine line cord.

In figure: 1-insulate silica gel heat dissipating layer, 2-detent projection, 3-heat-radiation belt, 4-steel wire woven armored layer, the outer lapping layer of 5-, 6-screen layer, lapping layer in 7-, 8-padded coaming, 9-inner sheath, 10-inner shield set, 11-insulating barrier, 12-conductor, 13-inner core frame.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.

Refer to Fig. 1, a kind of spline-simulating high intensity Underground Mine line cord, including: inner core frame 13, three of the wires, around Covering 7, the screen layer 6 being coated on outside interior lapping layer 7 and the outer lapping layer 5 being coated on outside screen layer 6, lapping layer 5 outside It is disposed with outward steel wire woven armored layer 4, insulation silica gel heat dissipating layer 1 and heat-radiation belt 3；Inner core frame 13 is by elastomeric material system Becoming, inner core frame 13 is axial arranged along cable, and inner core frame 13 includes three the first elastic plates and three the second elastic plates, three One end of first elastic plate is connected the other end and three the second elastic plates are vertically connected one by one near the side of the first elastic plate, often The structure that second elastic plate of individual first elastic plate and corresponding connection collectively forms has a cross section of T-type structure, wherein, Three the first elastic plates are circularly and evenly distributed, it is ensured that the intensity of cable all directions is identical.

Three of the wires is circumferentially distributed around inner core frame 13, and each wire is resisted against one by one near inner core frame 13 side Two elastic plates are resisted against on the inner surface of interior lapping layer 7 away from the side of the first elastic plate, the side away from inner core frame 13, Described each wire includes conductor 12 the most successively, be coated on outside conductor 12 insulating barrier 11, it is coated on insulating barrier 11 Outer inner shield set 10, the inner sheath 9 being coated on outside inner shield set 10, wherein, conductor 12 is formed by many copper wires are stranded, Improve the tensile strength of cable.

Being filled with padded coaming 8 in gap between described three cable cores and interior lapping layer 7, padded coaming 8 steeps for polypropylene Foam plastics, the setting of padded coaming 8, when cable is bent, the padded coaming 8 of polypropylene foam is prior to cable Deformation alleviates the cable core frictional force by the external world, avoids the friction between three cable cores simultaneously, thus it is disconnected to reduce cable core abrasion The risk of line, improves the security performance of cable.Steel wire woven armored layer 4 is coated with heat-conducting layer, is extruded with outside heat-conducting layer Insulation silica gel heat dissipating layer 1, wraps up some heat-radiation belts 3, the spiral back of the body of heat-radiation belt 3 outside insulation silica gel heat dissipating layer 1 Face is provided with some detent projection 2, and detent projection 2 is equivalent to positive stop strip, can also improve while playing spacing positioning action The area of dissipation of optical cable outer layer, is effectively diffused into the heat that cable produces in air, for the cable of multi-thread parallel layout, Owing to the detent projection that cable is mutual serves good spacing fixation, effectively prevent the situation that twisted wire and swinging cross are wound around Occur, provide convenience for wiring.

In the present embodiment, each first elastic plate of inner core frame 13 and the second elastic plate of corresponding connection collectively form Structure there is the cross section of T-type structure, make use of the feature that the bending strength of T-type structure is big, improve the bending resistance of cable Intensity, additionally the second elastic plate of inner core frame 13 is resisted against outside wire away from the side of the first elastic plate, then coordinates buffering Extruding of material 8, can keep the stability of position of wire when cable is bent, the buffering of polypropylene foam Material 8 alleviates the cable core frictional force by the external world prior to distortion of the cable, avoids the friction between three of the wires simultaneously, thus drops The risk of low wire abrasion broken string, improves the security performance of cable.

The present invention can not only improve the bending strength of cable, moreover it is possible to improves the overall mechanical properties of cable；The tooth of cable outer layer Shape projection is equivalent to positive stop strip, can also improve the area of dissipation of optical cable outer layer, effectively will while playing spacing positioning action The heat that cable produces is diffused in air, and for the cable of multi-thread parallel layout, the detent projection mutual due to cable rises Having arrived good spacing fixation, the situation effectively preventing twisted wire and swinging cross to be wound around occurs, and provides convenience for wiring.

Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, In the ken that those of ordinary skill in the art is possessed, it is also possible to make each on the premise of without departing from this patent objective Plant change.

Claims

1. a spline-simulating high intensity Underground Mine line cord, it is characterised in that including: inner core frame, three of the wires, Lapping layer, the screen layer being coated on outside interior lapping layer and the outer lapping layer being coated on outside screen layer, set outside lapping layer outside successively It is equipped with steel wire woven armored layer, insulation silica gel heat dissipating layer and heat-radiation belt；Inner core frame is made up of elastomeric material, and inner core frame is along cable Axial arranged, inner core frame includes three the first elastic plates and three the second elastic plates, and one end of three the first elastic plates is connected another One end is vertically connected near the side of the first elastic plate one by one with three the second elastic plates, and three of the wires is around inner core frame circumferentially It is distributed, and each wire is resisted against second elastic plate side away from the first elastic plate one by one near inner core frame side, away from The side of inner core frame is resisted against on the inner surface of interior lapping layer, and described each wire includes conductor the most successively, is coated on Insulating barrier outside conductor, the inner shield set being coated on outside insulating barrier, the inner sheath being coated on outside inner shield is overlapped；Braided steel wire armour Dress layer is coated with heat-conducting layer, is extruded with insulation silica gel heat dissipating layer, wraps up some outside insulation silica gel heat dissipating layer outside heat-conducting layer Heat-radiation belt, the spiral back side of heat-radiation belt is provided with some detent projection.

A kind of spline-simulating high intensity Underground Mine line cord the most according to claim 1, it is characterised in that each The structure that second elastic plate of the first elastic plate and corresponding connection collectively forms has a cross section of T-type structure, three One elastic plate is circularly and evenly distributed.

A kind of spline-simulating high intensity Underground Mine line cord the most according to claim 1, it is characterised in that described It is filled with padded coaming in gap between three cable cores and interior lapping layer.