CN109147998B - Flexible high-resistance flexible cable with reinforced structure for coal mine - Google Patents

Flexible high-resistance flexible cable with reinforced structure for coal mine Download PDF

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Publication number
CN109147998B
CN109147998B CN201810800475.7A CN201810800475A CN109147998B CN 109147998 B CN109147998 B CN 109147998B CN 201810800475 A CN201810800475 A CN 201810800475A CN 109147998 B CN109147998 B CN 109147998B
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cable
layer
protective layer
flexible
groups
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CN109147998A (en
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杨云东
郑亚周
张同林
闫小关
王辉
樊亚阁
郭风光
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Pingdingshan Kerui New Materials Manufacturing Co ltd
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Pingdingshan Kerui New Materials Manufacturing Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0216—Two layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
    • H01B7/1815—Protections not provided for in groups H01B7/182 - H01B7/26 composed of longitudinal inserts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/184—Sheaths comprising grooves, ribs or other projections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1895—Internal space filling-up means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The invention discloses a flexible high-resistance flexible cable with a reinforced structure for a coal mine, which comprises an external flame-retardant layer, an external flexible insulation reinforcing layer, an external cable protection layer, an internal cable, a flexible insulation baffle and an internal cable protection layer, wherein the external flexible insulation reinforcing layer is coated on the outer layer of the external cable protection layer, the external flame-retardant layer is coated on the outer layer of the external flexible insulation reinforcing layer, the internal cable protection layer is arranged in the external cable protection layer, and is of a hollow structure.

Description

Flexible high-resistance flexible cable with reinforced structure for coal mine
Technical Field
The invention relates to the technical field of cables, in particular to a flexible high-resistance flexible cable with a reinforced structure for a coal mine.
Background
The shielding rubber jacketed flexible cable of the coal mining machine in the coal mine frequently has the condition of broken control wires, so that the service life of the cable is greatly shortened.
The cable is also easily burned by fire, and internal leakage is easily caused.
The cable is required to ensure higher flexibility, and is often resistant to breaking, poor in toughness, short in service life and poor in heat dissipation performance.
The sub-lines in the cable are often directly filled in the cable, position change is easy to generate among the sub-lines, relative abrasion is generated, and the surface protection layer is abraded for a long time, so that the use is influenced.
Disclosure of Invention
The invention aims to provide a flexible high-resistance flexible cable with a reinforced structure for a coal mine, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a flexible high-resistance flexible cable for coal mine of strenghthened type structure, includes outside fire-retardant layer, outside flexible insulation enhancement layer, cable outside protective layer, inside cable line, soft insulating barrier and cable inside protective layer, the outer cladding of cable outside protective layer has outside flexible insulation enhancement layer, and the outer cladding of outside flexible insulation enhancement layer has outside fire-retardant layer, and the inside of outside flexible insulation enhancement layer is equipped with buffering resistance to compression stretch-proof groove;
the inner ring department of the outer protective layer of cable is equipped with the inside protective layer of cable, the trend of the inside protective layer of cable is unanimous with the trend of the outer protective layer of cable, is equipped with soft insulating barrier and inside cable conductor between the inside protective layer of cable and the outer protective layer of cable, soft insulating barrier is the rectangle form and is equipped with four sets of, and four sets of soft insulating barrier are circular array form and distribute, inside cable conductor is equipped with four sets of, and four sets of inside cable conductor are established respectively in four cavitys that four sets of soft insulating barrier are constituteed, and the space department in four cavitys is filled with big rubber filling block and little rubber filling block, and the intussuseption of every cavity is filled with two sets of big rubber filling block and two sets of little rubber filling block, and the surface of little rubber filling block and big rubber filling block is all fixed and is equipped with rubber granule.
Preferably, the buffering compression-resistant anti-pulling groove is of a circular hole-shaped groove body structure, a plurality of groups of buffering compression-resistant anti-pulling grooves are arranged, and the plurality of groups of buffering compression-resistant anti-pulling grooves are distributed in a circular array shape inside one circle of the external flexible insulation reinforcing layer.
Preferably, the outer end of the soft insulating partition plate is fixedly connected to the inner ring of the cable outer protection layer, and the inner end of the soft insulating partition plate is fixedly connected to the outer ring of the cable inner protection layer.
Preferably, the outer ring of the inner cable is coated with an inner insulating layer, and the outer ring of the inner insulating layer is coated with an inner flame-retardant layer.
Preferably, the small rubber filling block is of an arc-shaped block structure and is fixedly arranged at the joint of the soft insulating partition plate at one end close to the inner protective layer of the cable and the inner protective layer of the cable, and the large rubber filling block is of an arc-shaped block structure and is fixedly arranged at the joint of the outer protective layer of the cable and the soft insulating partition plate at one end close to the outer protective layer of the cable.
Preferably, the rubber particles are of a hemispherical structure, a plurality of groups of rubber particles are arranged, and the rubber particles are arranged in equal distances and equal sizes.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality and has the following advantages:
1. the cable inner protection layer is arranged in the cable outer protection layer and is of a hollow structure, the heat dissipation effect is good, a plurality of groups of buffer compression-resistant and tension-resistant grooves in the outer flexible insulation reinforcing layer also have a certain heat dissipation effect, when the cable outer protection layer is pressed, the extruded material can temporarily fill the buffer compression-resistant and tension-resistant grooves, and then the cable is restored to the original state through the restorability, so that the cable quality is improved;
2. when four groups of internal cables are separated in the four cavities by the soft insulating partition plates, mutual interference is avoided, the independence is strong, two groups of large-size rubber filling blocks and two groups of small-size rubber filling blocks are arranged at four corners of the internal cables, the internal cables can be stably filled in the external flexible insulating reinforcing layer, the structural stability is strong, and rubber particles have the function of friction coefficients among reinforcing structures, so that the internal cables are not easy to loosen;
3. the internal cable is flame-retardant through the internal flame-retardant layer and the external flame-retardant layer, has strong flame retardance, is strong in safety when used in a coal mine, plays a role in double-layer insulation protection through the internal insulating layer and the external flexible insulation reinforcing layer, prolongs the service life of the internal cable, has strong protectiveness, does not influence use, and is suitable for popularization.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is an enlarged schematic view of the structure a in fig. 1 according to the present invention.
In the figure: the cable comprises an outer flame retardant layer 1, an outer flexible insulating reinforcing layer 2, a buffer compression-resistant pull-resistant groove 21, a cable outer protective layer 3, an inner cable 4, an inner flame retardant layer 5, an inner insulating layer 6, a soft insulating partition 7, a large rubber filling block 8, a small rubber filling block 9, rubber particles 10 and a cable inner protective layer 11.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a flexible high-resistance flexible cable for coal mine of strenghthened type structure, includes outside fire-retardant layer 1, outside flexible insulation enhancement layer 2, cable outside protective layer 3, inside cable 4, soft insulating baffle 7 and cable inside protective layer 11, the outer cladding of cable outside protective layer 3 has outside flexible insulation enhancement layer 2, the outer cladding of outside flexible insulation enhancement layer 2 has outside fire-retardant layer 1, the inside of outside flexible insulation enhancement layer 2 is equipped with buffering resistance to compression stretch-proof groove 21;
the inner ring department of cable outside protective layer 3 is equipped with cable inside protective layer 11, the trend of cable inside protective layer 11 is unanimous with the trend of cable outside protective layer 3, be equipped with soft insulating barrier 7 and inside cable conductor 4 between cable inside protective layer 11 and the cable outside protective layer 3, soft insulating barrier 7 is the rectangle form and is equipped with four groups, four groups of soft insulating barrier 7 are circular array form and distribute, inside cable conductor 4 is equipped with four groups, four groups of inside cable conductor 4 establish respectively in four cavities that four groups of soft insulating barrier 7 constitute, the space department in four cavities is filled with big rubber filling block 8 and small rubber filling block 9, and the intussuseption of every cavity is filled with two sets of big rubber filling block 8 and two sets of small rubber filling block 9, the rubber granule 10 is all fixed to be equipped with on the surface of small rubber filling block 9 and big rubber filling block 8.
The buffering compression-resistant pull-resistant groove 21 is of a circular-hole-shaped groove body structure, the buffering compression-resistant pull-resistant groove 21 is provided with a plurality of groups, and the buffering compression-resistant pull-resistant grooves 21 are distributed in a circular array inside one circle of the external flexible insulation reinforcing layer 2.
The outer end of the soft insulating partition 7 is fixedly connected to the inner ring of the cable outer protection layer 3, and the inner end of the soft insulating partition 7 is fixedly connected to the outer ring of the cable inner protection layer 11.
An inner insulating layer 6 is coated on the outer ring of the inner cable 4, and an inner flame-retardant layer 5 is coated on the outer ring of the inner insulating layer 6.
The small-size rubber filling block 9 is fixedly arranged at the joint of the soft insulating partition 7 and the inner cable protective layer 11 at one end close to the inner cable protective layer 11, and the large-size rubber filling block 8 is fixedly arranged at the joint of the outer cable protective layer 3 and the soft insulating partition 7 at one end close to the outer cable protective layer 3.
The rubber particles 10 are of a hemispherical structure, the rubber particles 10 are provided with a plurality of groups, and the rubber particles 10 are arranged in equal distances and equal sizes.
Example 1
The utility model provides a flexible high-resistance flexible cable for coal mine of strenghthened type structure, includes outside fire-retardant layer 1, outside flexible insulation enhancement layer 2, cable outside protective layer 3, inside cable 4, soft insulating baffle 7 and cable inside protective layer 11, the outer cladding of cable outside protective layer 3 has outside flexible insulation enhancement layer 2, and the outer cladding of outside flexible insulation enhancement layer 2 has outside fire-retardant layer 1, and the inside of outside flexible insulation enhancement layer 2 is equipped with buffering resistance to compression stretch-proof groove 21; the inner ring department of the outer protective layer 3 of cable is equipped with the inner protective layer 11 of cable, the trend of the inner protective layer 11 of cable is unanimous with the trend of the outer protective layer 3 of cable, is equipped with flexible insulating barrier 7 and inside cable conductor 4 between the outer protective layer 3 of cable inner protective layer 11 and cable, flexible insulating barrier 7 is the rectangle form and is equipped with four groups, and four groups of flexible insulating barrier 7 are circular array form and distribute, inside cable conductor 4 is equipped with four groups, and four groups of inside cable conductor 4 are established respectively in four cavities that four groups of flexible insulating barrier 7 constitute, and the space department in four cavities is filled with big rubber filling block 8 and little rubber filling block 9, and the intussuseption of every cavity is filled with two sets of big rubber filling block 8 and two sets of little rubber filling block 9, and the surface of little rubber filling block 9 and big rubber filling block 8 is all fixed and is equipped with rubber granule 10.
Example 2
The utility model provides a flexible high-resistance flexible cable for coal mine of strenghthened type structure, includes outside fire-retardant layer 1, outside flexible insulation enhancement layer 2, cable outside protective layer 3, inside cable 4, soft insulating baffle 7 and cable inside protective layer 11, the outer cladding of cable outside protective layer 3 has outside flexible insulation enhancement layer 2, and the outer cladding of outside flexible insulation enhancement layer 2 has outside fire-retardant layer 1, and the inside of outside flexible insulation enhancement layer 2 is equipped with buffering resistance to compression stretch-proof groove 21; the inner ring department of the outer protective layer 3 of cable is equipped with the inner protective layer 11 of cable, the trend of the inner protective layer 11 of cable is unanimous with the trend of the outer protective layer 3 of cable, is equipped with flexible insulating barrier 7 and inside cable conductor 4 between the outer protective layer 3 of cable inner protective layer 11 and cable, flexible insulating barrier 7 is the rectangle form and is equipped with four groups, and four groups of flexible insulating barrier 7 are circular array form and distribute, inside cable conductor 4 is equipped with four groups, and four groups of inside cable conductor 4 are established respectively in four cavities that four groups of flexible insulating barrier 7 constitute, and the space department in four cavities is filled with big rubber filling block 8 and little rubber filling block 9, and the intussuseption of every cavity is filled with two sets of big rubber filling block 8 and two sets of little rubber filling block 9, and the surface of little rubber filling block 9 and big rubber filling block 8 is all fixed and is equipped with rubber granule 10.
The buffering compression-resistant pull-resistant groove 21 is of a circular-hole-shaped groove body structure, the buffering compression-resistant pull-resistant groove 21 is provided with a plurality of groups, and the buffering compression-resistant pull-resistant grooves 21 are distributed in a circular array inside one circle of the external flexible insulation reinforcing layer 2.
The outer end of the soft insulating partition 7 is fixedly connected to the inner ring of the cable outer protection layer 3, and the inner end of the soft insulating partition 7 is fixedly connected to the outer ring of the cable inner protection layer 11.
Example 3
The utility model provides a flexible high-resistance flexible cable for coal mine of strenghthened type structure, includes outside fire-retardant layer 1, outside flexible insulation enhancement layer 2, cable outside protective layer 3, inside cable 4, soft insulating baffle 7 and cable inside protective layer 11, the outer cladding of cable outside protective layer 3 has outside flexible insulation enhancement layer 2, and the outer cladding of outside flexible insulation enhancement layer 2 has outside fire-retardant layer 1, and the inside of outside flexible insulation enhancement layer 2 is equipped with buffering resistance to compression stretch-proof groove 21; the inner ring department of the outer protective layer 3 of cable is equipped with the inner protective layer 11 of cable, the trend of the inner protective layer 11 of cable is unanimous with the trend of the outer protective layer 3 of cable, is equipped with flexible insulating barrier 7 and inside cable conductor 4 between the outer protective layer 3 of cable inner protective layer 11 and cable, flexible insulating barrier 7 is the rectangle form and is equipped with four groups, and four groups of flexible insulating barrier 7 are circular array form and distribute, inside cable conductor 4 is equipped with four groups, and four groups of inside cable conductor 4 are established respectively in four cavities that four groups of flexible insulating barrier 7 constitute, and the space department in four cavities is filled with big rubber filling block 8 and little rubber filling block 9, and the intussuseption of every cavity is filled with two sets of big rubber filling block 8 and two sets of little rubber filling block 9, and the surface of little rubber filling block 9 and big rubber filling block 8 is all fixed and is equipped with rubber granule 10.
The buffering compression-resistant pull-resistant groove 21 is of a circular-hole-shaped groove body structure, the buffering compression-resistant pull-resistant groove 21 is provided with a plurality of groups, and the buffering compression-resistant pull-resistant grooves 21 are distributed in a circular array inside one circle of the external flexible insulation reinforcing layer 2.
The outer end of the soft insulating partition 7 is fixedly connected to the inner ring of the cable outer protection layer 3, and the inner end of the soft insulating partition 7 is fixedly connected to the outer ring of the cable inner protection layer 11.
An inner insulating layer 6 is coated on the outer ring of the inner cable 4, and an inner flame-retardant layer 5 is coated on the outer ring of the inner insulating layer 6.
The small rubber filling block 9 is of an arc-shaped block structure and is fixedly arranged at the joint of the soft insulating partition 7 and the inner cable protective layer 11, which are close to the inner cable protective layer 11, and the large rubber filling block 8 is of an arc-shaped block structure and is fixedly arranged at the joint of the outer cable protective layer 3 and the soft insulating partition 7, which are close to the outer cable protective layer 3.
Example 4
The utility model provides a flexible high-resistance flexible cable for coal mine of strenghthened type structure, includes outside fire-retardant layer 1, outside flexible insulation enhancement layer 2, cable outside protective layer 3, inside cable 4, soft insulating baffle 7 and cable inside protective layer 11, the outer cladding of cable outside protective layer 3 has outside flexible insulation enhancement layer 2, and the outer cladding of outside flexible insulation enhancement layer 2 has outside fire-retardant layer 1, and the inside of outside flexible insulation enhancement layer 2 is equipped with buffering resistance to compression stretch-proof groove 21; the inner ring department of the outer protective layer 3 of cable is equipped with the inner protective layer 11 of cable, the trend of the inner protective layer 11 of cable is unanimous with the trend of the outer protective layer 3 of cable, is equipped with flexible insulating barrier 7 and inside cable conductor 4 between the outer protective layer 3 of cable inner protective layer 11 and cable, flexible insulating barrier 7 is the rectangle form and is equipped with four groups, and four groups of flexible insulating barrier 7 are circular array form and distribute, inside cable conductor 4 is equipped with four groups, and four groups of inside cable conductor 4 are established respectively in four cavities that four groups of flexible insulating barrier 7 constitute, and the space department in four cavities is filled with big rubber filling block 8 and little rubber filling block 9, and the intussuseption of every cavity is filled with two sets of big rubber filling block 8 and two sets of little rubber filling block 9, and the surface of little rubber filling block 9 and big rubber filling block 8 is all fixed and is equipped with rubber granule 10.
The buffering compression-resistant pull-resistant groove 21 is of a circular-hole-shaped groove body structure, the buffering compression-resistant pull-resistant groove 21 is provided with a plurality of groups, and the buffering compression-resistant pull-resistant grooves 21 are distributed in a circular array inside one circle of the external flexible insulation reinforcing layer 2.
The outer end of the soft insulating partition 7 is fixedly connected to the inner ring of the cable outer protection layer 3, and the inner end of the soft insulating partition 7 is fixedly connected to the outer ring of the cable inner protection layer 11.
An inner insulating layer 6 is coated on the outer ring of the inner cable 4, and an inner flame-retardant layer 5 is coated on the outer ring of the inner insulating layer 6.
The small rubber filling block 9 is of an arc-shaped block structure and is fixedly arranged at the joint of the soft insulating partition 7 and the inner cable protective layer 11, which are close to the inner cable protective layer 11, and the large rubber filling block 8 is of an arc-shaped block structure and is fixedly arranged at the joint of the outer cable protective layer 3 and the soft insulating partition 7, which are close to the outer cable protective layer 3.
The rubber particles 10 are of a hemispherical structure, the rubber particles 10 are provided with a plurality of groups, and the rubber particles 10 are arranged in equal distances and equal sizes.
Working principle: the cable inner protection layer 11 is arranged in the cable outer protection layer 3, is of a hollow structure, has a good heat dissipation effect, and a plurality of groups of buffer compression-resistant and tension-resistant grooves 21 in the outer flexible insulation reinforcing layer 2 also have a certain heat dissipation effect, and when the cable outer protection layer 3 is pressed, the extruded material temporarily fills the buffer compression-resistant and tension-resistant grooves 21, and then is restored to the original state through the restorability, so that the cable quality is improved;
when four groups of internal cables are separated in four cavities by the soft insulating partition 7, mutual interference is avoided, the independence is strong, two groups of large-size rubber filling blocks 8 and two groups of small-size rubber filling blocks 9 are arranged at four corners of the internal cables 4, the internal cables 4 can be stably filled in the external flexible insulating reinforcing layer 2, the structural stability is strong, and rubber particles 10 have the function of friction coefficients among reinforcing structures, so that the internal cables 4 are not easy to loosen;
the internal cable 4 is flame-retardant through the internal flame-retardant layer 5 and the external flame-retardant layer 1, has strong flame retardance, and is strong in safety when used in a coal mine, the internal cable 4 plays a role in double-layer insulation protection through the internal insulating layer 6 and the external flexible insulation reinforcing layer 2, the service life of the internal cable is prolonged, the protection is strong, the use is not influenced, and the internal cable is suitable for popularization.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a colliery of strenghthened type structure is with flexible high resistance flexible cable, includes outside flame retardant coating (1), outside flexible insulation enhancement layer (2), cable outside protective layer (3), inside cable conductor (4), soft insulating barrier (7) and cable inside protective layer (11), its characterized in that: the cable is characterized in that an outer layer of the cable outer protective layer (3) is coated with an outer flexible insulation reinforcing layer (2), an outer layer of the outer flexible insulation reinforcing layer (2) is coated with an outer flame-retardant layer (1), and a buffer compression-resistant pull-resistant groove (21) is formed in the outer flexible insulation reinforcing layer (2); the inner ring of the cable outer protective layer (3) is provided with a cable inner protective layer (11), the trend of the cable inner protective layer (11) is consistent with that of the cable outer protective layer (3), soft insulating partition boards (7) and inner cables (4) are arranged between the cable inner protective layer (11) and the cable outer protective layer (3), the soft insulating partition boards (7) are rectangular and are provided with four groups, the four groups of soft insulating partition boards (7) are distributed in a circular array, the inner cables (4) are provided with four groups, the four groups of inner cables (4) are respectively arranged in four cavities formed by the four groups of soft insulating partition boards (7), gaps in the four cavities are filled with large rubber filling blocks (8) and small rubber filling blocks (9), each cavity is internally filled with two groups of large rubber filling blocks (8) and two groups of small rubber filling blocks (9), and rubber particles (10) are fixedly arranged on the surfaces of the small rubber filling blocks (9) and the large rubber filling blocks (8);
the small-size rubber filling block (9) is fixedly arranged at a joint of the soft insulating partition plate (7) and the cable inner protective layer (11) at one end close to the cable inner protective layer (11) in an arc-shaped block structure, and the large-size rubber filling block (8) is fixedly arranged at a joint of the cable outer protective layer (3) and the soft insulating partition plate (7) at one end close to the cable outer protective layer (3) in an arc-shaped block structure; the rubber particles (10) are of a hemispherical structure, a plurality of groups of rubber particles (10) are arranged, and the rubber particles (10) are equidistantly arranged in equal size.
2. The flexible high-resistance flexible cable for coal mines with a reinforced structure as claimed in claim 1, wherein: the buffering compression-resistant pull-resistant groove (21) is of a circular hole-shaped groove body structure, a plurality of groups of buffering compression-resistant pull-resistant grooves (21) are arranged, and the buffering compression-resistant pull-resistant grooves (21) are distributed in a circle inside the outer flexible insulation reinforcing layer (2) in a circular array mode.
3. The flexible high-resistance flexible cable for coal mines with a reinforced structure as claimed in claim 1, wherein: the outer end of the soft insulating partition plate (7) is fixedly connected to the inner ring of the cable outer protection layer (3), and the inner end of the soft insulating partition plate (7) is fixedly connected to the outer ring of the cable inner protection layer (11).
4. The flexible high-resistance flexible cable for coal mines with a reinforced structure as claimed in claim 1, wherein: an inner insulating layer (6) is coated on the outer ring of the inner cable (4), and an inner flame-retardant layer (5) is coated on the outer ring of the inner insulating layer (6).
CN201810800475.7A 2018-07-20 2018-07-20 Flexible high-resistance flexible cable with reinforced structure for coal mine Active CN109147998B (en)

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CN109147998B true CN109147998B (en) 2024-01-12

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Publication number Priority date Publication date Assignee Title
CN111029004A (en) * 2019-12-30 2020-04-17 安徽新亚特电缆集团有限公司 Multi-core wire cable
CN112271697B (en) * 2020-10-29 2022-05-10 江西亿博自动化设备有限公司 High-temperature instantaneous interruption device for power equipment

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Publication number Priority date Publication date Assignee Title
GB2367681A (en) * 1997-05-20 2002-04-10 Shaw Ind Ltd Twin conductor electrical cable
CN106448816A (en) * 2016-11-25 2017-02-22 扬州市凤鸣电缆有限公司 Special cable
CN207009127U (en) * 2017-05-25 2018-02-13 天津市康斯特创展科技有限公司 A kind of Novel compressive cable

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Publication number Priority date Publication date Assignee Title
GB2367681A (en) * 1997-05-20 2002-04-10 Shaw Ind Ltd Twin conductor electrical cable
CN106448816A (en) * 2016-11-25 2017-02-22 扬州市凤鸣电缆有限公司 Special cable
CN207009127U (en) * 2017-05-25 2018-02-13 天津市康斯特创展科技有限公司 A kind of Novel compressive cable

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