CN215815234U

CN215815234U - Novel rock drill cable

Info

Publication number: CN215815234U
Application number: CN202121146424.0U
Authority: CN
Inventors: 田志明; 张书军; 张宝龙; 李宏章; 王怀安; 李君�; 窦丽梅; 孙连发; 吴健; 吕泽中; 张永恒; 田亚飞; 李彬
Original assignee: Tangshan Huatong Special Cable Manufacturing Co ltd
Current assignee: Tangshan Huatong Special Cable Manufacturing Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-02-11
Anticipated expiration: 2031-05-26

Abstract

The utility model relates to a novel rock drill cable, and belongs to the technical field of cable manufacturing. The technical scheme is as follows: each power wire core is sequentially provided with a power wire core conductor (1), a power wire core insulating layer (2) and a nylon semi-conductive belt (3) from inside to outside; each ground wire core is sequentially provided with a ground wire core conductor (4) and a ground wire core coating layer (5) from inside to outside; each control wire core is sequentially provided with a control wire core conductor (6) and a control wire core insulating layer (7) from inside to outside; the power cable core, the ground core and the control wire core are combined together to form a cable core, and an inner sheath (8), a reinforcing layer (9) and an outer sheath (10) are sequentially arranged outside the cable core. The utility model improves the dielectric strength of the material and reduces the requirement of insulation thickness, thereby reducing the outer diameter of the cable, reducing the weight of the cable and reducing the loss of the cable material; through reasonable structural design, the outer diameter of the cable is controlled to the maximum extent; the performance of the cable is guaranteed, the service life of the cable is prolonged, and the construction efficiency is improved.

Description

Novel rock drill cable

Technical Field

The utility model relates to a novel rock drill cable, and belongs to the technical field of cable manufacturing.

Background

The rock drilling trolley is one of important equipment for ten million-ton mine mining, and works in a narrow and closed underground environment, and a power source mainly depends on a traveling cable. Usually, a winding drum is designed at the tail of the trolley and used for winding and unwinding cables, and the follow-up power supply controls the drilling trolley to complete work in different areas. The size of the winding drum is designed according to the outer diameter of the cable and the length of the cable, the mining cable is generally adopted for replacement due to the fact that no special cable is designed, and the winding drum is too large in some places due to the fact that the mining cable is thicker and heavier in design and needs to be driven by a motor with higher power; the trolley is in the moving process, the traveling cable can be freely dragged for use and can also be hung or wound and unwound in a reel for use, meanwhile, the cable can be continuously abraded, scratched and bent with the ground, the service life of the cable is short, and the construction efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel rock drill cable, which effectively reduces the outer diameter of the cable, prolongs the service life of the cable and solves the problems in the background technology by optimizing the cable structure.

The technical scheme of the utility model is as follows:

a novel rock drill cable comprises power wire cores, ground wire cores, control wire cores, an inner sheath, a reinforcing layer and an outer sheath, wherein the number of the power wire cores, the ground wire cores and the control wire cores is multiple, and each power wire core is sequentially provided with a power wire core conductor, a power wire core insulating layer and a nylon semi-conducting belt from inside to outside; each ground wire core is sequentially provided with a ground wire core conductor and a ground wire core coating layer from inside to outside; each control wire core is sequentially provided with a control wire core conductor and a control wire core insulating layer from inside to outside; the power cable core, the ground core and the control wire core are combined together to form a cable core, and an inner sheath, a reinforcing layer and an outer sheath are sequentially arranged outside the cable core.

Many the power sinle silk transposition is in the same place, is equipped with earth core and control sinle silk in the gap between two adjacent power sinle silks and the inner sheath 8.

And control wire cores are respectively arranged on two sides of each ground wire core.

The number of the power wire cores is three, and the power wire cores are arranged in a finished product shape; the three ground wire cores are respectively arranged in gaps between the two adjacent power wire cores and the inner sheath; the control wire core is arranged in a gap between the power wire core, the ground wire core and the inner sheath; through compact structural design, in limited space, the cable cores are arranged to the maximum extent, and the overall dimension of the cable is reduced.

The power wire core conductor, the ground wire core conductor and the control wire core conductor are all copper conductors and are type 6 cable conductors, so that the flexibility of the cable in the using process is guaranteed.

The power wire core insulating layer, the ground wire core coating layer and the control wire core insulating layer are all made of ethylene propylene rubber insulating materials; the ethylene propylene rubber insulating material is an improved hard ethylene propylene formula, and by improving the material proportion and introducing a novel material, the dielectric property of the insulating material is effectively improved on the premise of ensuring the original mechanical property, so that the insulation thickness of the cable is reduced to 70% of that of a conventional cable.

The reinforced layer is formed by weaving aramid fiber ropes, the aramid fiber ropes are oblique lines and are mutually crossed to form a grid shape, and the weaving density is controlled to be 15-25%.

The inner sheath and the outer sheath are both made of polyurethane materials.

The inner sheath, the reinforcing layer and the outer sheath are tightly bonded together to form a whole, so that the overall tensile and torsional properties of the cable are improved; damage to the cable caused by tension and damage to the internal structure caused by the twisting force generated by the spiral can be resisted in the winding process of the winding drum.

When the inner sheath semi-finished product with the reinforcing layer is manufactured, the inner sheath semi-finished product with the reinforcing layer needs to be heated through a heating pipe, so that the surface problem of the inner sheath can reach 140-.

The utility model has the beneficial effects that: the power wire core insulating layer, the ground wire core coating layer and the control wire core insulating layer are adopted, so that the dielectric strength of the material is improved, and the requirement on the insulating thickness is reduced, so that the outer diameter of the cable can be reduced, the weight of the cable is reduced, and the material loss of the cable is reduced; through reasonable structural design, the outer diameter of the cable is controlled to the maximum extent; the performance of the cable is guaranteed, the service life of the cable is prolonged, and the construction efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: the power cable core conductor comprises a power cable core conductor 1, a power cable core insulating layer 2, a nylon semi-conducting belt 3, a ground cable core conductor 4, a ground cable core coating layer 5, a control cable core conductor 6, a control cable core insulating layer 7, an inner sheath 8, a reinforcing layer 9 and an outer sheath 10.

Detailed Description

The present invention will be further described by way of examples with reference to the accompanying drawings.

In this embodiment, referring to fig. 1, a power core insulating layer 2 is extruded outside a power core conductor 1, a nylon semi-conductive belt 3 is wrapped outside the power core insulating layer 2, a ground core cladding layer 5 is extruded outside a ground core conductor 4, a control core insulating layer 7 is extruded outside a control core conductor 6, the power core, the ground core and the control core form a cable core, an inner sheath 8 is extruded outside the cable core, a reinforcing layer 9 is woven outside the inner sheath 8, and an outer sheath 10 is extruded outside the reinforcing layer 9.

The number of the power wire cores is three, and the power wire cores are arranged in a finished product shape; the three ground wire cores are placed in the gaps of the three power wire cores, the control wire core is placed in the gap between the power wire core and the ground wire core, and through the compact structural design, the cable wire cores are arranged in a limited space to the maximum extent, so that the overall dimension of the cable is reduced.

The power core conductor 1, the ground core conductor 4 and the control core conductor 6 are all copper conductors and are 6 th type cable conductors, so that the flexibility of the cable in the using process is ensured.

The power wire core insulating layer 2, the ground wire core coating layer 5 and the control wire core insulating layer 7 are all made of ethylene propylene rubber insulating materials; the ethylene propylene rubber insulating material is an improved hard ethylene propylene formula, and by improving the material proportion and introducing a novel material, the dielectric property of the insulating material is effectively improved on the premise of ensuring the original mechanical property, so that the insulation thickness of a cable is reduced to 70% of that of a conventional cable, the standard specified insulating property requirement can be still met, the design requirement is met, and the formula is as follows:

ethylene propylene diene monomer: 25 parts, polyethylene particles: 5 parts, 0.6 part of anti-aging agent-RD, 0.1 part of anti-aging agent-MB, zinc oxide: 1.5 parts, 1.0 part of titanium dioxide, 0.3 part of accelerator DM, stearic acid: 0.3 part, coupling agent-a 172 (liquid): 0.3 part, paraffin: 1.0 part, superfine talcum powder (1250 meshes): 18 parts of calcined clay: 16 parts of white carbon black: 2.5 parts, 4 parts of paraffin oil T3080, 1.35 parts of vulcanizing agent-odorless DCP, and mass parts of vulcanizing agent-PDM: 0.12.

the reinforced layer 9 is formed by weaving aramid ropes, the aramid ropes are oblique lines and are mutually crossed to form a grid shape, and the weaving density is controlled to be 15-25%.

The inner sheath and the outer sheath are both made of polyurethane materials.

Claims

1. A novel rock drill cable is characterized in that: the cable comprises power cable cores, ground cable cores, control cable cores, an inner sheath (8), a reinforcing layer (9) and an outer sheath (10), wherein the number of the power cable cores, the ground cable cores and the control cable cores is multiple, and each power cable core is sequentially provided with a power cable core conductor (1), a power cable core insulating layer (2) and a nylon semi-conducting belt (3) from inside to outside; each ground wire core is sequentially provided with a ground wire core conductor (4) and a ground wire core coating layer (5) from inside to outside; each control wire core is sequentially provided with a control wire core conductor (6) and a control wire core insulating layer (7) from inside to outside; the power cable core, the ground core and the control wire core are combined together to form a cable core, and an inner sheath (8), a reinforcing layer (9) and an outer sheath (10) are sequentially arranged outside the cable core.

2. A new rock drill cable according to claim 1 wherein: the power wire cores are twisted together, and a ground wire core and a control wire core are arranged in a gap between each two adjacent power wire cores and the inner sheath (8).

3. A new rock drill cable according to claim 1 or 2, characterized in that: and control wire cores are respectively arranged on two sides of each ground wire core.

4. A new rock drill cable according to claim 2 wherein: the number of the power wire cores is three, and the power wire cores are arranged in a finished product shape; the three ground wire cores are respectively arranged in gaps between the two adjacent power wire cores and the inner sheath (8); the control wire core is arranged in a gap between the power wire core, the ground wire core and the inner sheath (8).

5. A new rock drill cable according to claim 1 or 2, characterized in that: the reinforcing layer (9) is formed by weaving aramid fiber ropes, and the aramid fiber ropes are oblique lines and are mutually crossed to form a grid shape.

6. A new rock drill cable according to claim 1 or 2, characterized in that: the power wire core insulating layer (2), the ground wire core coating layer (5) and the control wire core insulating layer (7) are all made of ethylene propylene rubber insulating materials; the inner sheath and the outer sheath are both made of polyurethane materials.