CN215118389U

CN215118389U - Novel shuttle car cable for coal mine

Info

Publication number: CN215118389U
Application number: CN202121366201.5U
Authority: CN
Inventors: 张道勇; 张娟; 房继坤
Original assignee: Shandong Yanggu Haohui Cable Co ltd
Current assignee: Shandong Yanggu Haohui Cable Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-10
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a novel shuttle car cable for coal mine, which comprises an outer sheath, wherein a conductive structure is arranged inside the outer sheath; the conductive structure includes: the cable comprises a fiber braided reinforcing layer, an inner sheath, a wrapped semi-conducting layer, a cable core filling strip, three main wire core conductors, three main wire core insulating layers, three first metal braided shielding layers, two ground wire core conductors, a monitoring wire core conductor, a monitoring wire core insulating layer, a second metal braided shielding layer, six conductor reinforcing cores and a plurality of supporting parts; the utility model relates to a cable technical field through changing traditional cable core structure, improves cable conductor's special properties such as tensile, resistant bending, resistant coiling, anti-flex resistance, anti extrusion, adopts special synthetic fiber bundle as the enhancement core, combines to add the tow and carries out optimal design to conductor transposition structure, has solved betterly because disconnected core causes shuttle car cable life short problem, has improved the mechanical strength and the compliance of cable, has improved the life of cable.

Description

Novel shuttle car cable for coal mine

Technical Field

The utility model relates to the technical field of cables, specifically a novel shuttle car cable for coal mine.

Background

Coal mined by the coal mining machine is conveyed to the belt conveyor by the shuttle car and the shuttle car reciprocates periodically in the working process, the cable automatically retracts and retracts through the roller on the shuttle car to realize the reciprocating periodic motion, the cable can be seriously bent in the using process, the insulated wire core generates displacement, and the core breaking phenomenon occurs on the cable wire core. The normal production is influenced, and economic losses are caused, so that the scheme is generated by the intensive research aiming at the problems.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a novel shuttle car cable for a coal mine comprises an outer sheath, wherein a conductive structure is arranged inside the outer sheath;

the conductive structure includes: the cable comprises a fiber braided reinforcing layer, an inner sheath, a wrapped semi-conducting layer, a cable core filling strip, three main wire core conductors, three main wire core insulating layers, three first metal braided shielding layers, two ground wire core conductors, a monitoring wire core conductor, a monitoring wire core insulating layer, a second metal braided shielding layer, six conductor reinforcing cores and a plurality of supporting parts;

the fiber braided reinforced layer is inserted into the inner side wall surface of the outer sheath, the inner sheath is inserted into the inner side wall surface of the fiber braided reinforced layer, the wrapping semi-conductive layer is inserted into the inner side wall surface of the inner sheath, the cable core filler strip is arranged at the central part of the wrapping semi-conductive layer, three main cable core conductors are arranged in the wrapping semi-conductive layer, three main cable core insulating layers are respectively sleeved on the three main cable core conductors, three first metal braided shielding layers are respectively sleeved on the three main cable core insulating layers, the three first metal braided shielding layers are all attached to the cable core filler strip, two ground cable core conductors are attached to the inner side wall surface of the wrapping semi-conductive layer, the two ground cable core conductors are attached to the three first metal braided shielding layers, the monitoring cable core conductors are arranged in the wrapping semi-conductive layer, the monitoring cable core insulating layer is sleeved on the monitoring cable core conductors, and the second metal braided shielding layer is sleeved on the monitoring cable core insulating layer, the second metal is woven the shielding layer and is laminated on the inner wall face of package semiconduction layer, and the second metal is woven the shielding layer and is laminated on two of them main core insulating layer outside wall faces of three main core insulating layer, and six conductor reinforcement cores cartridge respectively on three main core conductor, two earth core conductors and the monitoring core conductor, and a plurality of supporting part equidistance is installed on three first metal is woven the shielding layer.

Preferably, the support portion includes: three support sleeves and three pairs of arc limiting plates;

the three supporting sleeves are respectively embedded on the outer wall surfaces of the three first metal braided shielding layers, the three pairs of arc limiting plates are respectively installed on the outer wall surfaces of the three supporting sleeves, and one ends of the three pairs of arc limiting plates are respectively attached to the two ground wire core conductors and the second metal braided shielding layer.

Preferably, the thickness dimension of the three first metal braided shield layers is the same as the thickness dimension of the second metal braided shield layer.

Preferably, the six conductor cores are of the same diametrical size.

Preferably, the thickness dimension of the three support sleeves is smaller than the thickness dimension of the three first metal braided shield layers.

Preferably, the three support sleeves and the three pairs of arc-shaped limiting plates are all flexible insulating structures.

Advantageous effects

The utility model provides a novel shuttle car cable for coal mine possesses following beneficial effect: the special performances of tension resistance, bending resistance, winding resistance, bending resistance, extrusion resistance and the like of the cable conductor are improved by changing the cable core structure of the traditional cable, a special synthetic fiber bundle is used as a reinforcing core, and the conductor twisted structure is optimally designed by combining with the addition of the fiber bundle, so that the problem of short service life of the shuttle car cable caused by core breakage is well solved, the mechanical strength and flexibility of the cable are improved, and the service life of the cable is prolonged.

Drawings

Fig. 1 is the utility model relates to a novel cross section structure schematic diagram of shuttle car cable for coal mine.

Fig. 2 is the utility model relates to a novel main core conductor's for coal mine shuttle car cable longitudinal section structure sketch map.

In the figure: 1-an outer sheath; 2-weaving a fiber reinforced layer; 3-inner sheath; 4-wrapping a semi-conducting layer; 5-cable core filling strips; 6-main core conductor; 7-main core insulation layer; 8-a first metal braided shield layer; 9-ground core conductor; 10-monitoring the core conductor; 11-monitoring the core insulation layer; 12-a second metallic braided shield layer; 13-a conductor reinforcing core; 14-a support sleeve; 15-arc limiting plate.

Detailed Description

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): referring to fig. 1-2, a novel shuttle car cable for a coal mine comprises an outer sheath 1, wherein a conductive structure is arranged inside the outer sheath 1;

in the specific implementation, the conductive structure may preferably adopt the following structure, which includes: the cable comprises a fiber braided reinforcing layer 2, an inner sheath 3, a wrapped semi-conducting layer 4, a cable core filler strip 5, three main wire core conductors 6, three main wire core insulating layers 7, three first metal braided shielding layers 8, two ground wire core conductors 9, a monitoring wire core conductor 10, a monitoring wire core insulating layer 11, a second metal braided shielding layer 12, six conductor reinforcing cores 13 and a plurality of supporting parts; the fiber braided reinforcement layer 2 is inserted into the inner side wall surface of the outer sheath 1, the inner sheath 3 is inserted into the inner side wall surface of the fiber braided reinforcement layer 2, the wrapping semi-conductive layer 4 is inserted into the inner side wall surface of the inner sheath 3, the cable core filler 5 is arranged at the central part of the wrapping semi-conductive layer 4, three main core conductors 6 are arranged in the wrapping semi-conductive layer 4, three main core insulating layers 7 are respectively sleeved on the three main core conductors 6, three first metal braided shielding layers 8 are respectively sleeved on the three main core insulating layers 7, three first metal braided shielding layers 8 are respectively attached to the cable core filler 5, two ground core conductors 9 are attached to the inner side wall surface of the wrapping semi-conductive layer 4, two ground core conductors 9 are attached to the outer side wall surface of the three first metal braided shielding layers 8, the monitoring core conductor 10 is arranged in the wrapping semi-conductive layer 4, and the monitoring core insulating layer 11 is sleeved on the monitoring core conductor 10, the second metal braided shielding layer 12 is sleeved on the monitoring wire core insulating layer 11, the second metal braided shielding layer 12 is attached to the inner side wall surface of the wrapped semi-conducting layer 4, the second metal braided shielding layer 12 is attached to the outer side wall surface of two main wire core insulating layers 7 of the three main wire core insulating layers 7, six conductor reinforcing cores 13 are respectively inserted on the three main wire core conductors 6, the two ground wire core conductors 9 and the monitoring wire core conductor 10, and a plurality of supporting parts are equidistantly arranged on the three first metal braided shielding layers 8;

wherein, it is required to be noted that:

the cable is of a 3+3 structure and consists of three main core conductors 6, two ground core conductors 9 and a monitoring core conductor 10;

main core conductor 6, ground core conductor 9 and monitoring core conductor 10: the sixth tinned soft copper conductor is adopted to meet the requirements of GB/T3956-. The pitch-diameter ratio of the stranded wire bundle is controlled to be 12-14 times, the complex twist pitch-diameter ratio of the stranded wire is controlled to be 10-12, and in order to avoid the phenomena of tensile breaking and bending breaking of a cable conductor, the stranded wire and the complex twist twisting direction both adopt a left-hand twisting mode;

main core insulating layer 7 and monitor core insulating layer 11: the ethylene propylene diene monomer is adopted, and the electrical property and the mechanical physical property of the ethylene propylene diene monomer meet the requirements of GB 7954.8-1987 standard;

two ground conductor wires 9 and one monitoring conductor wire 10 are placed in the gaps between the three main core insulation layers 7. The cabling direction is the right direction, the cabling pitch diameter ratio is controlled to be 12-14 times, and in order to increase the contact surface of the three first metal braided shielding layers 8 and the second metal braided shielding layers 12, the semi-conducting layer 4 is wound outside the cabling cable core. A cable core filling strip 5 is additionally arranged at the center of the cable, and the cable core filling strip 5 is made of aramid fiber materials and serves as a reinforcing piece to improve the tensile resistance and the stability of the cable;

the inner sheath 3 is extruded outside the wrapped semi-conducting layer 4, and the inner sheath 3 is extruded by a low-smoke halogen-free flame-retardant rubber which is heat-resistant and corrosion-resistant and takes ethylene propylene diene monomer as a base material;

in order to improve the torsion resistance and bending resistance of the cable, aramid fiber weaving is adopted as a fiber weaving reinforcing layer 2 between an inner sheath 3 and an outer sheath 1 of the cable;

the outer sheath 1 is also extruded by a low-smoke halogen-free flame-retardant rubber which is heat-resistant and corrosion-resistant and takes ethylene propylene diene monomer as a base material.

In a specific implementation, the support portion may preferably adopt the following structure, which includes: three support sleeves 14 and three pairs of arc-shaped limit plates 15; the three supporting sleeves 14 are respectively embedded on the outer side wall surfaces of the three first metal braided shielding layers 8, the three pairs of arc limiting plates 15 are respectively installed on the outer side wall surfaces of the three supporting sleeves 14, and one ends of the three pairs of arc limiting plates 15 are respectively attached to the two ground wire core conductors 9 and the second metal braided shielding layer 12;

wherein, it is required to be noted that: the three support sleeves 14 are used for mounting three pairs of arc limiting plates 15, and the three pairs of arc limiting plates 15 are used for enabling the two ground core conductors 9 and the second metal braided shielding layer 12 to be tightly attached to the three first metal braided shielding layers 8.

Preferably, the thickness dimension of the three first metal braided shield layers 8 is the same as the thickness dimension of the second metal braided shield layer 12.

Preferably, the six conductor cores 13 have the same diameter.

Preferably, the thickness of the three support sleeves 14 is smaller than the thickness of the three first metal braided shield layers 8.

Preferably, the three support sleeves 14 and the three pairs of arc-shaped limiting plates 15 are all flexible insulating structures.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel shuttle car cable for a coal mine comprises an outer sheath and is characterized in that a conductive structure is arranged inside the outer sheath;

2. The novel shuttle car cable for coal mines according to claim 1, wherein the support part comprises: three support sleeves and three pairs of arc limiting plates;

3. The novel shuttle car cable for the coal mine according to claim 1, wherein the thickness dimension of the three first metal braided shielding layers is the same as the thickness dimension of the second metal braided shielding layer.

4. The novel shuttle car cable for coal mines as claimed in claim 1, wherein the six conductor reinforcing cores are of the same diameter size.

5. The novel shuttle car cable for the coal mine according to claim 2, wherein the thickness dimension of the three support sleeves is smaller than the thickness dimension of the three first metal braided shielding layers.

6. The novel shuttle car cable for the coal mine as claimed in claim 2, wherein the three support sleeves and the three pairs of arc-shaped limiting plates are all flexible insulating structures.