CN223784906U - A rubber-sheathed flexible cable for intelligent mining fiber optic composite coal mining machines - Google Patents

A rubber-sheathed flexible cable for intelligent mining fiber optic composite coal mining machines

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Publication number
CN223784906U
CN223784906U CN202520089404.6U CN202520089404U CN223784906U CN 223784906 U CN223784906 U CN 223784906U CN 202520089404 U CN202520089404 U CN 202520089404U CN 223784906 U CN223784906 U CN 223784906U
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China
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layer
cable
core
optical fiber
rubber
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CN202520089404.6U
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Inventor
孙腾
苏艳文
储丰峰
蒋群娣
邵云峰
马风原
徐晶亚
韩孟刚
付江杰
史轩
李玉锦
吴盛
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Jiangsu Zhongmei Cable Co Ltd
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Jiangsu Zhongmei Cable Co Ltd
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Abstract

The utility model belongs to the technical field of cables, and relates to an intelligent mine optical fiber composite shearer rubber jacketed flexible cable which comprises an aramid rope, wherein a saddle-shaped support is extruded outside the aramid rope, a cable core is arranged at the arc of the saddle-shaped support and comprises three main wire cores, two groups of control wire core groups and an optical fiber unit, the three main wire cores are arranged at the large arc of the outer side of the saddle-shaped support, the two groups of control wire core groups and the optical fiber unit are arranged at the small arc of the outer side of the saddle-shaped support, the two groups of control wire core groups and the optical fiber unit are respectively arranged between the adjacent main wire cores, and the intelligent mine optical fiber composite shearer rubber jacketed flexible cable further comprises a coating layer arranged outside the cable core, wherein the coating layer sequentially comprises an aramid yarn braiding layer and an outer jacket from inside to outside. Each strand of the cable control wire core conductor is formed by twisting a plurality of copper wires and aramid yarns, 7 strands of the cable control wire core conductor are twisted according to a 1+6 regular structure, the flexibility and the tensile capacity of the control wire core are improved, and the optical fiber units are arranged in gaps on the outer side of the cable, so that the service life of the optical fiber can be prolonged.

Description

Intelligent mine is with optic fibre composite coal-winning machine rubber cover flexible cable
Technical Field
The utility model belongs to the technical field of cables, and particularly relates to an intelligent optical fiber composite shearer rubber jacketed flexible cable for mines.
Background
Intelligent mining focuses on the application of automation and intelligent technologies in the mine production process, and intelligent mining is a development trend of coal mining. Along with the intelligent reformation of the advanced mine of the state, the intelligent technology of coal mining equipment is rapidly advanced, and the conventional mobile cable of the coal mining machine can only be used for power transmission and control signals and cannot meet the intelligent monitoring function of the coal mining equipment. The rubber jacketed flexible cable of the optical fiber composite coal mining machine is matched with intelligent coal mining equipment, is widely applied, is used for power transmission, signal transmission, intelligent monitoring and intelligent feedback functions of information such as images, gas concentration and temperature of a coal mining machine of an underground intelligent working face of a coal mine, and is convenient for on-mine personnel to master the running condition of the working face in time.
The control wire core of the coal mining machine is generally 2.5-6 mm 2, the tensile strength of the conductor is generally 20 times that of the conductor, and the tensile strength of the control wire core is very small due to the limitation of the conductor. Because the cable is used for a long time and frequently in bending, and the minimum bending radius of the cable is only 3 times of the outer diameter of the cable, the control wire core always in a high-strength running state is often broken.
Because the working environment of the coal mining machine is bad, in order to effectively avoid the damage of ground gangue and the damage of large coal blocks due to falling, the optical fiber unit in the rubber jacketed flexible cable of the optical fiber composite coal mining machine is generally arranged in the center of the cable. The conventional rubber jacketed flexible cable of the optical fiber composite coal mining machine adopts 3 groups of power wire cores and 3 groups of control wire cores which are arranged at intervals, the center of the cable is supported by a saddle-type bracket extruded by high-temperature steam vulcanization of semiconductive rubber, and an optical fiber unit is arranged at the center of the saddle-type bracket.
The optical fiber unit is limited by the outer diameter of the optical fiber unit, so that the thickness and the height of the saddle-shaped bracket are required to be increased in order to place the optical fiber unit at the center of the saddle-shaped bracket, the outer diameter of a cable is increased, the whole outer diameter of the cable is enlarged, and the bending radius of the cable is influenced. And under the action of stresses such as long-term and frequent excessive bending and stretching of the cable, the central optical fiber unit is directly subjected to tensile force and is easy to break.
The center of the control wire core conductor is reinforced by adopting an aramid rope stranded by a plurality of high-strength Kevlar aramid yarns, and as the aramid rope is softer than the copper wire, the tightness of the aramid rope and the copper wire is different when the control wire core conductor is stranded, the integral tensile effect of the aramid rope is poor, and the copper wire stress of the control wire core conductor is earlier than that of the aramid rope in the long-term bending moving use process, so that the control wire core is broken.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides an intelligent optical fiber composite shearer rubber jacketed flexible cable for mines. Each strand of the control wire core is formed by twisting a plurality of copper wires and aramid yarns, 7 strands of the control wire core are twisted according to a 1+6 regular structure, the flexibility and the tensile capacity of the control wire core are improved, the optical fiber units are arranged in gaps on the outer sides of the cables, the optical fibers are prevented from being broken due to bending stress at the central positions of the cables, the service lives of the optical fibers are prolonged, and the problems of the control wire core, the broken optical fiber units and the large outer diameters of the cables in the prior art can be solved.
In order to achieve the technical purpose, the technical scheme adopted by the embodiment of the utility model is as follows:
The rubber jacketed flexible cable of the optical fiber composite coal mining machine for the intelligent mine comprises an aramid fiber rope, wherein a saddle-shaped bracket is extruded outside the aramid fiber rope, a cable core is arranged at the arc position of the saddle-shaped bracket, and the cable core comprises three main cable cores, two control cable core groups and an optical fiber unit;
The three main wire cores are arranged at the outer side large circular arc of the saddle-shaped support, two groups of control wire core groups and one optical fiber unit are arranged at the outer side small circular arc of the saddle-shaped support, and the two groups of control wire core groups and the one optical fiber unit are respectively arranged between the adjacent main wire cores;
The cable further comprises a coating layer arranged outside the cable core, wherein the coating layer sequentially comprises an aramid yarn weaving layer and an outer sheath from inside to outside.
Further, the main line core is formed by stranding a plurality of copper wire strands, the flexible non-woven fabric layer is wrapped outside the main line core, the first insulating layer is extruded outside the flexible non-woven fabric layer, the semi-conductive cloth belt is overlapped and wrapped outside the first insulating layer to serve as an insulating shielding layer, a first metal shielding layer is arranged outside the insulating shielding layer, and a first semi-conductive cloth belt layer is overlapped and wrapped outside the first metal shielding layer.
Further, the control wire core group comprises a control wire core, a second insulating layer, a second metal shielding layer and a second semi-conductive tape layer, the second insulating layer is extruded outside the control wire core, a plurality of control wire cores which are extruded with the second insulating layer are twisted into a cable, the second metal shielding layer is arranged outside the cable, and the second semi-conductive tape layer is lapped outside the second metal shielding layer.
Further, an insulating protection layer is extruded outside the optical fiber unit, and a third semi-conductive tape layer is overlapped and wrapped outside the insulating protection layer.
Further, the extrusion outer diameter of the insulating protection layer is the same as the outer diameter of the control wire core group.
Further, the control wire core is formed by twisting 7 strands of copper wire strands, and each strand of copper wire strand is formed by twisting a plurality of copper wires and two aramid yarns bonded together.
Further, the first metal shielding layer is also used as a ground wire core, and is formed by braiding stranded tinned copper wires and polyester fiber yarns.
Further, the optical fiber unit is formed by twisting 4-18 cores in a plurality of loose tubes, the center is a reinforcing piece, and the side gaps are filled with aramid fibers.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that:
1) The rubber jacketed flexible cable of the optical fiber composite coal mining machine for the intelligent mine comprises a main wire core, a control wire core group and an optical fiber unit, wherein the main wire core provides power transmission, the control wire core group provides signal control, the optical fiber unit realizes intelligent communication, and the rubber jacketed flexible cable of the optical fiber composite coal mining machine realizes triple functions of the cable.
2) The optical fiber unit is arranged in the gap position of the main line core, so that the saddle-shaped bracket space is not occupied, the outer diameter of the cable can be reduced, the bending radius of the cable is reduced, and the bending performance of the cable is improved.
3) Each strand of the control wire core is stranded by a plurality of copper wires and high-strength aramid yarns, and 7 strands of strands are stranded according to a 1+6 regular structure, so that the overall flexibility and tensile strength of the control wire core are improved.
4) According to the utility model, the aramid yarn is embedded outside the cable core to weave, so that the anti-twisting performance of the cable core is enhanced, and the extruded outer sheath is embedded inside the aramid yarn to weave, so that the tensile performance of the cable is enhanced.
Drawings
Fig. 1 is a schematic structural diagram of a rubber jacketed flexible cable of an optical fiber composite shearer for an intelligent mine in an embodiment of the utility model.
Fig. 2 is a schematic structural view of a control wire core in the rubber jacketed flexible cable of the optical fiber composite shearer of fig. 1.
The reference numerals indicate 1-main wire core, 2-flexible non-woven fabric layer, 3-first insulating layer, 4-insulating shielding layer, 5-first metal shielding layer, 6-first semi-conductive cloth layer, 7-control wire core, 8-second insulating layer, 9-second metal shielding layer, 10-second semi-conductive cloth layer, 11-aramid rope, 12-saddle type bracket, 13-optical fiber unit, 14-insulating protective layer, 15-third semi-conductive cloth layer, 16-aramid yarn weaving layer, 17-outer sheath, 18-aramid yarn and 19-copper wire.
Detailed Description
In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by the azimuth words such as "inner, outer", "upper, lower", "left, right", etc. are generally based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these azimuth words do not indicate or imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth without restricting the scope of protection of the present utility model.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
As shown in fig. 1, the rubber jacketed flexible cable of the optical fiber composite coal mining machine for the intelligent mine comprises an aramid fiber rope 11, wherein a saddle-shaped bracket 12 is extruded outside the aramid fiber rope 11, a cable core is arranged at the arc position of the saddle-shaped bracket 12, and the cable core comprises three main cable cores 1, two control cable core groups and an optical fiber unit 13;
The three main wire cores 1 are arranged at the outer large circular arc of the saddle-type bracket 12, the two groups of control wire core groups and one optical fiber unit 13 are arranged at the outer small circular arc of the saddle-type bracket 12, and the two groups of control wire core groups and one optical fiber unit 13 are respectively arranged between the adjacent main wire cores 1;
The cable further comprises a coating layer arranged outside the cable core, and the coating layer sequentially comprises an aramid yarn weaving layer 16 and an outer sheath 17 from inside to outside.
Wherein the saddle-type bracket 12 is made by extruding semiconductive rubber through a special saddle-type die.
In order to prevent the bulge from twisting in the bending process of the wire core, the aramid yarn weaving layer 16 is formed by weaving 36-spindle high-strength aramid yarns, the outer jacket 17 is made of high-strength chloroprene rubber, and the tensile strength of the high-strength chloroprene rubber is more than or equal to 15.0N/mm < 2 >.
The main wire core 1 is formed by stranding a plurality of copper wire strands, the flexible non-woven fabric layer 2 is wrapped outside the main wire core 1, the first insulating layer 3 is extruded outside the flexible non-woven fabric layer 2, the semiconductive cloth belt is wrapped outside the first insulating layer 3 in an overlapping mode to serve as the insulating shielding layer 4, the first metal shielding layer 5 is arranged outside the insulating shielding layer 4, and the first semiconductive cloth belt layer 6 is wrapped outside the first metal shielding layer 5 in an overlapping mode.
The first metal shielding layer 5 is also used as a ground wire core and is formed by braiding stranded tinned copper wires and polyester fiber yarns.
The first semi-conductive tape layer 6 is overlapped and wrapped outside the first metal shielding layer 5, so that the insulating shielding layer 4 and the first metal shielding layer 5 are clung to each other, and the shielding effect is better.
The control wire core group comprises a control wire core 7, a second insulating layer 8, a second metal shielding layer 9 and a second semi-conductive tape layer 10, wherein the second insulating layer 8 is extruded outside the control wire core 7, a plurality of control wire cores 7 extruded with the second insulating layer 8 are twisted into a cable, the second metal shielding layer 9 is arranged outside the cable, and the second semi-conductive tape layer 10 is overlapped and wrapped outside the second metal shielding layer 9.
Wherein the first insulating layer 3 and the second insulating layer 8 are both made of high-strength ethylene propylene diene monomer rubber with the tensile strength of more than or equal to 8.0N/mm 2.
In order to prevent shielding interference, the second metal shielding layer 9 is woven by copper wires, and in order to prevent the second metal shielding layer 9 from being adhered to the outer sheath 17, the second semi-conductive tape layer 10 is overlapped and wrapped outside the second metal shielding layer 9.
The control wire core 7 is formed by twisting 7 strands of copper wire strands, each strand of copper wire strand is formed by twisting a plurality of copper wires 19 and two pieces of Kevlar aramid yarns 18 bonded together, as shown in fig. 2, in order to increase the tensile strength of the control wire core 7, a multi-strand twisted high-strength Kevlar aramid yarn support is adopted in the center of each strand of copper wire strand for reinforcement.
The optical fiber unit 13 is externally extruded with an insulating protection layer 14, and in order to ensure that all shielding layers have good conductive performance and play a role in balancing potential, a third semi-conductive cloth belt layer 15 is overlapped and wrapped outside the insulating protection layer 14.
The extruded outer diameter of the insulating protective layer 14 is the same as the outer diameter of the control wire core group. The insulating protective layer 14 is made of high-strength ethylene propylene diene monomer rubber with the tensile strength of more than or equal to 8.0N/mm 2.
The optical fiber unit 13 is formed by twisting 4-18 cores in a plurality of loose tubes, wherein the center is a reinforcing piece, and the side gaps are filled with aramid fibers.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.

Claims (8)

1.一种智能矿山用光纤复合采煤机橡套软电缆，其特征在于，包括芳纶绳（11），所述芳纶绳（11）外挤包有马鞍型支架（12），所述马鞍型支架（12）的圆弧处设置有缆芯，所述缆芯包括三根主线芯（1）、两组控制线芯组和一根光纤单元（13）；1. A rubber-sheathed flexible cable for a smart mine fiber optic composite coal mining machine, characterized in that it includes an aramid rope (11), the aramid rope (11) is extruded with a saddle-shaped bracket (12), and a cable core is provided at the arc of the saddle-shaped bracket (12), the cable core including three main wire cores (1), two sets of control wire core groups and one optical fiber unit (13). 其中，三根主线芯（1）设置在所述马鞍型支架（12）的外侧大圆弧处，两组控制线芯组和一根光纤单元（13）设置在所述马鞍型支架（12）的外侧小圆弧处，两组控制线芯组和一根光纤单元（13）分别设置在相邻主线芯（1）之间；Among them, three main wire cores (1) are set at the outer large arc of the saddle-shaped bracket (12), two sets of control wire cores and one fiber unit (13) are set at the outer small arc of the saddle-shaped bracket (12), and the two sets of control wire cores and one fiber unit (13) are respectively set between adjacent main wire cores (1). 还包括设置在所述缆芯外的包覆层，所述包覆层从内至外依次包括芳纶纱编织层（16）和外护套（17）。It also includes a sheathing layer disposed outside the cable core, the sheathing layer comprising, from the inside out, an aramid yarn braided layer (16) and an outer sheath (17). 2.根据权利要求1所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述主线芯（1）由多股铜丝股线绞合而成，所述主线芯（1）外绕包柔性无纺布层（2），所述柔性无纺布层（2）外挤包第一绝缘层（3），所述第一绝缘层（3）外重叠绕包半导电布带作为绝缘屏蔽层（4），所述绝缘屏蔽层（4）外设置第一金属屏蔽层（5），所述第一金属屏蔽层（5）外重叠绕包有第一半导电布带层（6）。2. The rubber-sheathed flexible cable for intelligent mining fiber composite coal mining machine according to claim 1, characterized in that the main core (1) is made of multiple strands of copper wire twisted together, the main core (1) is wrapped with a flexible non-woven fabric layer (2), the flexible non-woven fabric layer (2) is extruded with a first insulation layer (3), the first insulation layer (3) is wrapped with a semi-conductive cloth tape as an insulation shielding layer (4), the insulation shielding layer (4) is provided with a first metal shielding layer (5), and the first metal shielding layer (5) is wrapped with a first semi-conductive cloth tape layer (6). 3.根据权利要求1所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述控制线芯组包括控制线芯（7）、第二绝缘层（8）、第二金属屏蔽层（9）和第二半导电布带层（10），所述控制线芯（7）外挤包第二绝缘层（8），挤包有第二绝缘层（8）的多根控制线芯（7）绞合成缆，缆线外设置有第二金属屏蔽层（9），所述第二金属屏蔽层（9）外重叠绕包第二半导电布带层（10）。3. The rubber-sheathed flexible cable for intelligent mining fiber composite coal mining machine according to claim 1, characterized in that the control core group includes a control core (7), a second insulation layer (8), a second metal shielding layer (9) and a second semi-conductive cloth tape layer (10), the control core (7) is extruded with the second insulation layer (8), multiple control cores (7) with the extruded second insulation layer (8) are twisted into a cable, the cable is provided with a second metal shielding layer (9), and the second metal shielding layer (9) is wrapped with the second semi-conductive cloth tape layer (10) in an overlapping manner. 4.根据权利要求1所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述光纤单元（13）外挤包有绝缘保护层（14），所述绝缘保护层（14）外重叠绕包第三半导电布带层（15）。4. The rubber-sheathed flexible cable for intelligent mining fiber composite coal mining machine according to claim 1, characterized in that the fiber unit (13) is externally wrapped with an insulating protective layer (14), and the insulating protective layer (14) is externally wrapped with a third semi-conductive cloth tape layer (15). 5.根据权利要求4所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述绝缘保护层（14）的挤包外径与所述控制线芯组的外径相同。5. The rubber-sheathed flexible cable for intelligent mining fiber composite coal mining machine according to claim 4, characterized in that the outer diameter of the extruded insulation protective layer (14) is the same as the outer diameter of the control wire core group. 6.根据权利要求3所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述控制线芯（7）由7股铜丝股线绞合而成，每股铜丝股线由多根铜丝（19）和两根黏合在一起的芳纶纱（18）绞合。6. The rubber-sheathed flexible cable for intelligent mining fiber composite coal mining machine according to claim 3, characterized in that the control core (7) is made of 7 strands of copper wire twisted together, and each strand of copper wire is made of multiple copper wires (19) and two strands of aramid yarn (18) bonded together. 7.根据权利要求2所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述第一金属屏蔽层（5）兼做地线芯，采用束绞镀锡铜丝与涤纶纤维丝编织而成。7. The rubber-sheathed flexible cable for intelligent mining fiber composite coal mining machine according to claim 2, characterized in that the first metal shielding layer (5) also serves as the ground core, and is made of stranded tin-plated copper wire and polyester fiber filaments. 8.根据权利要求1或4所述的智能矿山用光纤复合采煤机橡套软电缆，其特征在于，所述光纤单元（13）为4-18芯，放置在多个松套管内绞合而成，中心为加强件，边侧间隙利用芳纶丝填充。8. The intelligent mining fiber composite coal mining machine rubber-sheathed flexible cable according to claim 1 or 4, characterized in that the fiber unit (13) has 4-18 cores, which are placed in multiple loose tubes and twisted together, with a reinforcing member in the center and aramid yarn filling the side gaps.
CN202520089404.6U 2025-01-15 2025-01-15 A rubber-sheathed flexible cable for intelligent mining fiber optic composite coal mining machines Active CN223784906U (en)

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CN202520089404.6U CN223784906U (en) 2025-01-15 2025-01-15 A rubber-sheathed flexible cable for intelligent mining fiber optic composite coal mining machines

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Application Number Priority Date Filing Date Title
CN202520089404.6U CN223784906U (en) 2025-01-15 2025-01-15 A rubber-sheathed flexible cable for intelligent mining fiber optic composite coal mining machines

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CN223784906U true CN223784906U (en) 2026-01-09

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