CN208706262U - Coalcutter metallic shield ruggedized cable - Google Patents

Abstract

The utility model belongs to metal sheathed cable field more particularly to a kind of coalcutter metallic shield ruggedized cable.Including power core conductor and control core conductor, it further include the ground wire in a shape, the power core conductor is wrapped with the insulating layer set gradually from inside to outside, insulating bag belt and metal screen layer, the ground wire is wrapped with oxygen barrier layer, the outer diameter of the oxygen barrier layer and the outer diameter of metal screen layer are consistent, the power core conductor is three, tangent setting two-by-two between the power core conductor and ground wire, the control core conductor is wrapped with control core conductor insulating layer, the control core conductor is arranged at the gap between adjacent power cable core conductor, the utility model is by providing a kind of coalcutter metallic shield ruggedized cable, by changing traditional layout, adjust the position of ground wire and control conductor, and then make the connection for facilitating route, simultaneously, by adjusting the structure of package, and then it is anti-to reach enhancing Draw the purpose of performance.

Description

Coalcutter metallic shield ruggedized cable

Technical field

The utility model belongs to metal sheathed cable field, is related to coalcutter more particularly to a kind of coalcutter metal screen Cover ruggedized cable.

Background technique

With the development of coal industry, various coal excavation apparatus come into being, and coalcutter is exactly that one of them is indispensable Corollary equipment, once the interruption of entire coal mining activity will be will lead to by breaking down, production efficiency is substantially reduced, and causes tremendous economic Loss.Since coalcutter working environment is severe, be easy to appear various failures, used in soft rubber cable service life problem One of the main problem for exactly causing coalcutter production efficiency low.Meanwhile ground wire is centrally located, when ground connection, needs whole Core, which scatter, to be completed.

In order to solve the above-mentioned technical problem, there has been proposed various solutions, currently, most common in the market Technical solution is tradition to be changed to several compositions in one ground wire, and be wrapped in it by control conductor and power wire core It is interior, while ground wire being made to have the effect of metallic shield.Although the traditional ground wire of above-mentioned this scheme effective solution is inconvenient to tear open The problem of dividing, but it needs all ground wires arranging bunchy, can just be installed, seriously be constrained when installation Installation effectiveness.

Meanwhile when cable is when downhole coalcutter is frequently bended, stretches, insulation rubber is easily stretched to be caused so that being broken Cable short circuit or open circuit；The insulation shielding of existing electric cable for coal mining machine uses band+metal/polyamide or polyester fiber type Formula, the disadvantage is that polyamide or polyester fiber intensity are relatively low, cable is by easy fracture after impact extruded, bending；Commonly adopt Coal electromechanics cable structure does not set enhancement layer, be easy to cause sheath rubber by biggish machinery when cable is frequently bended, stretches The effect of the external worlds power such as pulling force, friction, so that sheath damage causes Integral cable to be damaged, shorten to cable in use Service life.

Utility model content

The utility model proposes a kind of layout for technical problem present in above-mentioned coalcutter metal sheathed cable Rationally, structure is simple, rationally distributed and facilitate installation and the high coalcutter metallic shield ruggedized cable of tensile strength.

In order to achieve the above object, the technical solution adopted in the utility model is that the utility model provides a kind of coalcutter It further include the ground wire in a shape with metallic shield ruggedized cable, including power core conductor and control core conductor, it is described Power core conductor is wrapped with the insulating layer set gradually from inside to outside, insulating bag belt and metal screen layer, describedly Line is wrapped with oxygen barrier layer, and the outer diameter of the oxygen barrier layer and the outer diameter of metal screen layer are consistent, and the power core conductor is three A, tangent setting two-by-two, the control core conductor are wrapped with control conductor and lead between the power core conductor and ground wire Body insulating layer, the control core conductor are arranged at the gap between adjacent power cable core conductor, the power core conductor It is also enclosed with inner restrictive coating outside with ground wire, is filled out between the power core conductor, control core conductor, ground wire and inner restrictive coating Filled with fire proofing, it is provided with enhancement layer outside the inner restrictive coating, jacket layer is set with outside the enhancement layer.

Preferably, the material of the insulating layer and control core conductor insulating layer is using ethylene-propylene diene copolymer as base-material Rubber.

Preferably, the material of the insulating bag belt is mineral-insulated fireproof band.

Preferably, the metal screen layer is copper wire woven shielded layer.

Preferably, the material of the oxygen barrier layer is haloflex.

Preferably, the material of the inner restrictive coating is heat-resistant silicon rubber.

Preferably, the material of the jacket layer is high neoprene.

Preferably, the enhancement layer includes the metal shielding being arranged from inside to outside, articulamentum and aramid fiber enhancement layer, Wherein, the aramid fiber enhancement layer is aramid yarn braiding structure or aramid yarn lapping structure.

Preferably, the metal shielding is copper wire, aramid fiber braiding structure.

Preferably, the material of the articulamentum is chlorosulfonated polyethylene.

Compared with prior art, it is the advantages of the utility model with good effect,

1, the utility model is by providing a kind of coalcutter metallic shield ruggedized cable, by changing traditional cloth Office, adjusts the position of ground wire and control conductor, and then makes the connection for facilitating route, meanwhile, by adjusting the structure of package, in turn Achieve the purpose that enhance tensile property.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model, For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is the structural schematic diagram for the coalcutter metallic shield ruggedized cable that embodiment 1 provides；

Fig. 2 is the cross-sectional view for the enhancement layer that embodiment 1 provides；

In above each figure, 1, power core conductor；2, insulating layer；3, insulating bag belt；4, metal screen layer；5, control line Core conductor；6, control core conductor insulating layer；7, ground wire；8, oxygen barrier layer；9, inner restrictive coating；10, fire proofing；11, enhancement layer； 111, metal shielding；112, articulamentum；113, aramid fiber enhancement layer；12, jacket layer.

Specific embodiment

It is with reference to the accompanying drawing and real in order to be more clearly understood that the above objects, features, and advantages of the utility model Example is applied to be described further the utility model.It should be noted that in the absence of conflict, embodiments herein and reality The feature applied in example can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical Novel to be implemented using other modes described herein are different from, therefore, the utility model is not limited to be described below The limitation of the specific embodiment of specification.

Embodiment 1, as shown in Figure 1 and Figure 2, the present embodiment aim to solve the problem that ground wire present in existing cable is inconvenient to connect And the technical problem of tension effect difference, for this purpose, the metallic shield ruggedized cable of coalcutter provided by the present embodiment, including Power core conductor 1 and control core conductor 5 are provided with three power core conductors 1 and three controls in the present embodiment altogether Cable core conductor 5, there are also a ground wire 7, wherein power core conductor 1 be wrapped with the insulating layer 2 set gradually from inside to outside, Insulating bag belt 3 and metal screen layer 4, in the present embodiment, the material of insulating layer 2 is using ethylene-propylene diene copolymer as the rubber of base-material Skin, with heat-resisting, resistance to ozone, flexibility is good, specific gravity is small and small hygroscopicity, volume resistivity height, mechanical performance height etc. are excellent Point.Insulating bag belt 3, which is that mineral-insulated fireproof band is wrapped, to be formed, and insulating bag belt 3 is high-quality with a kind of inviscid import Made of silicon rubber, over time, the stickiness of mineral-insulated fireproof band is increasing, until viscosity maximum forms water Close separation layer, to be protected to the route of pipe line.Metal screen layer 4 is copper wire woven shielded layer, and copper wire has been able to maintain cable Original flexibility while the performances such as resist bending, impact, extruding, plays the role of shielding.

It is wrapped with oxygen barrier layer 8 in ground wire 7, the material of oxygen barrier layer 8 is haloflex, and haloflex is high for saturation Molecular material, it is non-toxic and tasteless, there is excellent weatherability, resistance to ozone, chemical-resistant resistance and ageing-resistant performance, have good resistance to Oiliness, anti-flammability and tinctorial property.Meanwhile haloflex has semiconduction energy, meets the needs of ground wire.

In the present embodiment, the outer diameter of outer diameter with metal screen layer 4 of oxygen barrier layer 8 is consistent, exactly by adding oxygen barrier layer 8 Ground wire 7 outer diameter it is consistent with 1 outer diameter of power core conductor of metal screen layer 4 is added, in the present embodiment, power wire core is led Body 1 is three, and ground wire 7 is one, by tangent setting two-by-two between power core conductor 1 and ground wire 7, in this way, the ground wire 7 just made Outside, it is easy to use.

Control core conductor insulating layer 6, the material of control core conductor insulating layer 6 are wrapped in control core conductor 5 Also for using ethylene-propylene diene copolymer as the rubber of base-material.In the present embodiment, in order to reasonably be laid out, the setting of control core conductor 5 exists At gap between adjacent power cable core conductor 1, specifically, it is respectively arranged between power core conductor 1 adjacent two-by-two One, one is provided at the gap between power core conductor 1 and ground wire 7, the purpose being arranged in this way can also utilize control Cable core conductor processed plays the role of certain metallic shield to power core conductor, meanwhile, according to the standard of corresponding country, control The number of core may be set to be four, can two be arranged between power core conductor 1, other two be arranged in power At gap between cable core conductor 1 and ground wire 7.

In order to further increase the tensile capacity of entire cable, in the present embodiment, in power core conductor 1 and ground wire 7 It is also enclosed with inner restrictive coating 9 outside, the material of inner restrictive coating 9 is heat-resistant silicon rubber, and the most significant feature of heat-resistant silicon rubber is high temperature Stability, although the intensity of silicon rubber is only the half of natural rubber or certain synthetic rubber under room temperature, at 200 DEG C or more Under hot environment, silicon rubber is still able to maintain certain flexibility, resilience and surface hardness, and mechanical property is without significant change. Meanwhile there is excellent insulation performance, corona resistance and arc resistance are also very good.

In order to further increase flame retardant effect, in power core conductor 1, control core conductor 5, ground wire 6 and inner sheath Fire proofing 10 is filled between layer 9, in the present embodiment, fire proofing 10 is ceramic powders, naturally it is also possible to be other materials Material, such as existing common fireproof powder.

In order to further increase stretch-proof effect, inner restrictive coating 9 is provided with enhancement layer 11, in the present embodiment, reinforces Layer 11 be three-decker, specifically, enhancement layer 11 include be arranged from inside to outside metal shielding 111, articulamentum 112 and Aramid fiber enhancement layer 113, wherein metal shielding 111 is copper wire, aramid fiber braiding structure, and copper wire and aramid fiber shuffling are constituted metal Enhancement layer not only has certain shield effectiveness, can also utilize the characteristic of aramid fiber, improve tensile capacity.The material of articulamentum 112 Matter is chlorosulfonated polyethylene, and chlorosulfonated polyethylene is by low density polyethylene (LDPE) or high density polyethylene (HDPE) through superchlorination and chlorosulfonation It is made.There are excellent ozone resistance, resistance to weathering, chemical corrosion resistance etc., preferable physical mechanical property, resistance to ag(e)ing Energy, heat-resisting and lower temperature resistance, oil resistivity, flame resistance, wearability and resistance to electrical insulating property.Aramid fiber enhancement layer 113 is aramid yarn braiding Structure or aramid yarn lapping structure.Aramid yarn is able to maintain intrinsic stability, low-down shrinking percentage, and then further stretches Performance.

In the present embodiment, the material of jacket layer 12 is high neoprene.High neoprene has resistance to medium good, resistance to It is oily, water-fast, chemical resistance is good, meanwhile, glue-line is soft, and elasticity is good, resistance to be hit and vibrate.And then meet coalcutter It needs.

The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent The equivalent embodiment of variation is applied to other fields, but all without departing from the content of the technical scheme of the utility model, according to this reality With novel technical spirit any simple modification, equivalent variations and remodeling to the above embodiments, it is practical new to still fall within this The protection scope of type technical solution.

Claims (10)

1. a kind of coalcutter metallic shield ruggedized cable, including power core conductor and control core conductor, feature exist In further including the ground wire in a shape, the power core conductor is wrapped with the insulating layer set gradually from inside to outside, insulation Belting layer and metal screen layer, the ground wire are wrapped with oxygen barrier layer, the outer diameter of the oxygen barrier layer and metal screen layer it is outer Diameter is consistent, and the power core conductor is three, tangent setting two-by-two, the control between the power core conductor and ground wire Cable core conductor is wrapped with control core conductor insulating layer, and the control core conductor is arranged between adjacent power cable core conductor Gap at, be also enclosed with inner restrictive coating outside the power core conductor and ground wire, the power core conductor, control conductor are led It is filled with fire proofing between body, ground wire and inner restrictive coating, is provided with enhancement layer outside the inner restrictive coating, outside the enhancement layer It is set with jacket layer.

2. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the insulating layer and control The material of cable core conductor insulating layer processed is the rubber using ethylene-propylene diene copolymer as base-material.

3. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the insulating bag belt Material be mineral-insulated fireproof band.

4. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the metal screen layer For copper wire woven shielded layer.

5. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the material of the oxygen barrier layer Matter is haloflex.

6. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the inner restrictive coating Material is heat-resistant silicon rubber.

7. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the material of the jacket layer Matter is high neoprene.

8. coalcutter according to claim 1 metallic shield ruggedized cable, which is characterized in that the enhancement layer includes Metal shielding, articulamentum and the aramid fiber enhancement layer being arranged from inside to outside, wherein the aramid fiber enhancement layer is aramid yarn braiding Structure or aramid yarn lapping structure.

9. coalcutter according to claim 8 metallic shield ruggedized cable, which is characterized in that the metal shielding For copper wire, aramid fiber braiding structure.

10. coalcutter according to claim 9 metallic shield ruggedized cable, which is characterized in that the articulamentum Material is chlorosulfonated polyethylene.