CN211907069U

CN211907069U - Photoelectric hybrid cable for mineral operation

Info

Publication number: CN211907069U
Application number: CN202020941070.8U
Authority: CN
Inventors: 邓彪
Original assignee: SHENZHEN LILUTONG TECHNOLOGY INDUSTRY CO LTD
Current assignee: SHENZHEN LILUTONG TECHNOLOGY INDUSTRY CO LTD
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-11-10
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a photoelectric mixed cable that mineral products operation was used, include: photoelectric mixing wire core layer, photoelectric mixing wire core layer includes: a plurality of concentric tightly stranded cables and optical cables. The cable includes: the cable comprises a conductor formed by concentrically and tightly twisting a plurality of tinned copper wires and a rubber insulating layer for coating the conductor. The optical cable includes: the optical fiber cable comprises an optical core formed by closely twisting a plurality of optical fibers and Kevlar fiber yarns, a PBT pipe sleeve for coating the optical core, a Kevlar weaving layer for coating the PBT pipe sleeve and a second explosion-proof layer for coating the Kevlar weaving layer. And a Kevlar rope is filled in a gap between the cable and the optical cable. The utility model has the advantages that: the strength and the toughness of the cable are greatly enhanced, the strength of the optical cable is increased, the overall strength of a photoelectric mixed wire core layer formed by twisting the cable and the optical cable together is increased, and the overall strength of the photoelectric mixed wire cable is enhanced.

Description

Photoelectric hybrid cable for mineral operation

Technical Field

The utility model relates to a technical field of cable, in particular to photoelectric mixed cable that mineral products operation was used.

Background

The photoelectric hybrid cable of the mineral well is mainly used for supplying power to power equipment and lighting equipment in a mine, transmitting commands to monitoring equipment in each area in the mine, and feeding back information such as scene, air quality and the like in the mine to computer equipment in an external control room, and is an important link for power supply and information transmission between internal equipment and the external control room in the mine.

The strength of the wire core of the photoelectric mixed cable in the existing mineral well is not enough, the wire core is easy to break, various safety accidents occur in the trial production or production process, and potential safety hazards exist during use.

SUMMERY OF THE UTILITY MODEL

The problem to prior art exists, the utility model aims at providing a photoelectric mixed cable that mineral operation was used, the photoelectric mixed cable sinle silk intensity that aims at solving current mineral well is not enough, appears the cracked problem of sinle silk easily.

In order to achieve the above object, the utility model provides a photoelectric mixed cable that mineral operation used, include: the photoelectric composite cable comprises a photoelectric composite cable core layer, a waterproof insulating layer coating the photoelectric composite cable core layer, an inner protective layer coating the waterproof insulating layer, a first explosion-proof layer coating the inner protective layer, and an outer protective layer coating the first explosion-proof layer. Wherein, the mixed core layer of photoelectricity includes: a plurality of concentric tightly stranded cables and optical cables. The cable includes: the cable comprises a conductor formed by concentrically and tightly twisting a plurality of tinned copper wires and a rubber insulating layer for coating the conductor. The optical cable includes: the optical fiber cable comprises an optical core formed by closely twisting a plurality of optical fibers and Kevlar fiber yarns, a PBT pipe sleeve for coating the optical core, a Kevlar weaving layer for coating the PBT pipe sleeve and a second explosion-proof layer for coating the Kevlar weaving layer. And a Kevlar rope is filled in a gap between the cable and the optical cable.

Preferably, the waterproof insulating layer is wrapped with a PET tape.

Preferably, the inner protective layer and the outer protective layer are both made of highly-flame-retardant heavy polychloroprene materials.

Preferably, still be equipped with the shielding layer in the interior sheath, the shielding layer includes: the TAC belt comprises a semiconductor layer, a semi-conductive rubber layer covering the TAC belt semiconductor layer and a copper wire nylon woven layer covering the semi-conductive rubber layer.

Preferably, the first explosion-proof layer and the second explosion-proof layer are both steel-tape armoring.

Preferably, the rubber insulation layer is extruded using an ethylene propylene rubber of medium particle size in EPR.

Preferably, the geometric center of the photoelectric mixed wire core layer is also provided with a bearing wire core, and the plurality of cables and the optical cable are concentrically and tightly stranded around the bearing wire core. The bearing wire core is made of Kevlar materials.

Preferably, tear ropes are arranged in the second explosion-proof layer and the inner protection layer along the axial direction of the photoelectric hybrid cable.

Compared with the prior art, the beneficial effects of the utility model reside in that: the conductor of the cable is formed by concentrically and tightly twisting a plurality of high-strength and high-toughness tinned copper wires, so that the strength and the toughness of the cable are greatly enhanced. The optical core of the optical cable is formed by tightly twisting a plurality of optical fibers and Kevlar fiber yarns, and the Kevlar braid layer and the second explosion-proof layer are arranged on the outer layer of the optical cable, so that the strength of the optical cable is greatly increased. The Kevlar cord is filled in the gap between the cable and the optical cable, so that the overall strength of the photoelectric mixed core layer formed by twisting the cable and the optical cable together is greatly increased. Still set up first explosion-proof layer through including between sheath and the outer jacket, further strengthen this photoelectric mixed cable's bulk strength.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention;

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The utility model provides a photoelectric mixed cable that mineral operation used.

Referring to fig. 1, fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

As shown in fig. 1, in the embodiment of the present invention, the photoelectric hybrid cable for mineral operation includes: the cable comprises a photoelectric mixed wire core layer, a waterproof insulating layer 200 coating the photoelectric mixed wire core layer, an inner protection layer 300 coating the waterproof insulating layer 200, a first explosion-proof layer 400 coating the inner protection layer 300, and an outer protection layer 500 coating the first explosion-proof layer 400. Wherein, the mixed core layer of photoelectricity includes: a plurality of concentric tightly stranded cables 110 and cables 120.

The cable 110 includes: a conductor formed by concentrically and tightly twisting a plurality of tinned copper wires 111 and a rubber insulating layer 112 covering the conductor.

The optical cable 120 includes: the optical fiber cable comprises an optical core 121 formed by closely twisting a plurality of optical fibers and Kevlar filaments, a PBT pipe sleeve 122 covering the optical core 121, a Kevlar braid 123 covering the PBT pipe sleeve 122, and a second explosion-proof layer 124 covering the Kevlar braid 123. The kevlar 130 is filled in the gap between the cable 110 and the optical cable 120.

The conductor of the cable 110 is formed by concentrically and tightly twisting a plurality of high-strength and high-toughness tinned copper wires 111, so that the strength and the toughness of the cable 110 are greatly enhanced.

The optical core 121 of the optical cable 120 is formed by tightly twisting a plurality of optical fibers and Kevlar filaments, so that the optical fibers are completely wrapped in the Kevlar filaments, and the tensile strength of the optical core 121 is greatly enhanced. And set up kevlar braid 123 and second explosion-proof layer 124 in the skin of optical cable 120, promoted the holistic high tensile of optical cable 120, acid and alkali-resistance ability to can solve optical cable 120 when the transposition, because the holistic tension of optical cable 120 rises, lead to the cracked problem of optic fibre of inside optical core 121, thereby, greatly increased optical cable 120's intensity.

Through the clearance department packing between cable 110 and optical cable 120 has the kava stay cord 130, kava stay cord 130 has excellence intensity, high temperature resistant, acid and alkali resistant, light in weight, ageing resistance and life cycle excellence performance such as long, greatly increased cable 110 and optical cable 120 transposition together and the bulk strength of the mixed core layer of photoelectricity of constituteing to greatly increased this mixed cable of photoelectricity's anti-drag ability. Due to the weight of the photoelectric hybrid cable, the photoelectric hybrid cable needs to bear tens of tons of pulling force when being dragged into a shaft of a mine. In the photoelectric hybrid cable in this embodiment, due to the intervention of the kevlar rope 130, the anti-pulling capability of the photoelectric hybrid cable is improved by 6 times, so that the photoelectric hybrid cable is not easily broken or cracked during the laying process.

By further disposing the first explosion-proof layer 400 between the inner sheath 300 and the outer sheath 500, the overall strength of the optical electrical hybrid cable is further enhanced.

Specifically, in the present embodiment, in order to ensure the bending strength of the optical fiber in the optical core 121 and to improve the bending strength of the optical core 121 of the optical cable 120 as a whole, the optical fiber is a G65a71 optical fiber.

Specifically, in the present embodiment, in order to enhance the overall strength of the optical/electrical hybrid cable, the first explosion-proof layer 400 is a steel tape sheath. To enhance the strength of the optical cable 120 to prevent the optical fibers from being broken due to lateral pressure when the optical cable 120 is twisted with the cable 110, the second explosion-proof layer 124 is also steel tape-clad.

Specifically, in the present embodiment, in order to enhance the overall strength of the photoelectric hybrid core layer and the photoelectric hybrid cable, a load-bearing core 140 is further disposed at the geometric center of the photoelectric hybrid core layer, and the plurality of cables 110 and the optical cable 120 are concentrically and tightly stranded around the load-bearing core 140. The load-bearing wire core 140 is made of Kevlar material.

Specifically, in the present embodiment, in order to further enhance the strength of the optical cable 120 in the optical-electrical hybrid cable, a tear string 600 is disposed in the second explosion-proof layer 124; in order to further enhance the overall strength of the optical electrical hybrid cable, a tear string 600 is also disposed in the inner sheath 300 along the axial direction of the optical electrical hybrid cable.

Specifically, in this embodiment, in order to improve the shielding performance of this optical-electrical hybrid cable, a shielding layer 310 is further disposed in the inner sheath 300, and the shielding layer 310 includes: the TAC belt comprises a semiconductor layer, a semi-conductive rubber layer covering the TAC belt semiconductor layer and a copper wire nylon woven layer covering the semi-conductive rubber layer. By adopting the structure of three-layer shielding, the shielding performance of the shielding layer 310 is greatly improved.

Preferably, in this embodiment, in order to improve the waterproof insulation effect of the hybrid cable and enhance the safety of the hybrid cable in use in a mine, the waterproof insulation layer 200 is formed by wrapping a PET tape.

Preferably, in this embodiment, in order to improve the overall flame retardant, flexibility, wear resistance, impact resistance and permeation resistance of the hybrid cable, and solve the problem of spontaneous combustion of the hybrid cable when encountering high temperature, and reduce the probability of accidents of the hybrid cable, the inner protective layer 300 and the outer protective layer 500 are both made of highly flame-retardant heavy polychloroprene material.

Preferably, in this embodiment, in order to improve the insulation effect of the cable 110 in the optical/electrical hybrid cable, the rubber insulation layer 112 is formed by extruding ethylene propylene rubber with EPR medium particle size.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An opto-electric hybrid cable for mineral operations, comprising: the photoelectric hybrid cable comprises a photoelectric hybrid cable core layer, a waterproof insulating layer coating the photoelectric hybrid cable core layer, an inner protection layer coating the waterproof insulating layer, a first explosion-proof layer coating the inner protection layer, and an outer protection layer coating the first explosion-proof layer; wherein, the mixed core layer of photoelectricity includes: a plurality of concentric tightly stranded cables and cables; the cable includes: the cable comprises a conductor formed by concentrically and tightly twisting a plurality of tinned copper wires and a rubber insulating layer for coating the conductor; the optical cable includes: the optical fiber cable comprises an optical core formed by tightly twisting a plurality of optical fibers and Kevlar fiber yarns, a PBT pipe sleeve covering the optical core, a Kevlar woven layer covering the PBT pipe sleeve and a second explosion-proof layer covering the Kevlar woven layer; and a Kevlar rope is filled in a gap between the cable and the optical cable.

2. The photovoltaic hybrid cable for mineral processing according to claim 1, wherein the waterproof insulating layer is wrapped with a PET tape.

3. The photovoltaic hybrid cable for mineral operations according to claim 1, wherein the inner sheath and the outer sheath are both made of highly nonflammable heavy polychloroprene material.

4. The optoelectronic hybrid cable for mineral operation according to claim 3, wherein a shielding layer is further disposed in the inner sheath, and the shielding layer comprises: the cable comprises a TAC belt semiconductor layer, a semi-conductive rubber layer covering the TAC belt semiconductor layer and a copper wire nylon woven layer covering the semi-conductive rubber layer.

5. The opto-electric hybrid cable for mineral operations of claim 1, wherein the first and second explosion-proof layers are steel tape armoring.

6. The opto-electric hybrid cable for mineral processing as defined in claim 1 wherein the rubber insulation layer is extruded from an ethylene propylene rubber with a median EPR particle size.

7. The opto-electric hybrid cable for mineral operation as defined in any one of claims 1 to 6, wherein a load-bearing core is further provided at the geometric center of the core layer of the opto-electric hybrid cable, and a plurality of the electric cables and optical cables are concentrically and tightly twisted around the load-bearing core; the bearing wire core is made of Kevlar materials.

8. The opto-electric hybrid cable for mineral processing according to claim 7, wherein a ripcord is provided in both the second explosion-proof layer and the inner sheath in an axial direction of the opto-electric hybrid cable.