CN113488236B

CN113488236B - Movable shielding monitoring type rubber jacketed flexible cable for coal mine

Info

Publication number: CN113488236B
Application number: CN202110629533.6A
Authority: CN
Inventors: 李万松; 丁运生
Original assignee: Hefei University of Technology; Anhui Lingyu Cable Technology Co Ltd
Current assignee: Hefei University of Technology; Anhui Lingyu Cable Technology Co Ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2023-04-07
Anticipated expiration: 2041-06-07
Also published as: CN113488236A

Abstract

The invention relates to the technical field of rubber jacketed flexible cables for coal mines, and discloses a novel mobile shielding monitoring type rubber jacketed flexible cable for coal mines, which comprises an outer sheath and an inner sheath, wherein an anti-extrusion component is arranged in the outer sheath, when the cable is extruded, extrusion force is slowed down through the anti-extrusion component, pressure on the inner sheath is reduced, an internal circuit is prevented from being affected with damp through a water-proof film arranged on the outer wall of the inner sheath, when the cable is impacted or extruded by external force, a rubber active sheath is deformed, an arc-shaped plate is impacted and deformed, and the arc-shaped plate has elasticity and plays a buffering role, the extrusion force on a second wear-resistant layer is greatly reduced compared with that on the outer sheath, circuits inside the inner sheath are protected, after the cable is used for a long time, the outer sheath of the cable can age, cracks are generated, the underground is moist, water is separated from the outer surface of the inner sheath through the water-proof film, damage of the circuits is avoided, and the service life of the cable is prolonged.

Description

Movable shielding monitoring type rubber jacketed flexible cable for coal mine

Technical Field

The invention relates to the technical field of rubber jacketed flexible cables for coal mines, in particular to a mobile shielding monitoring type rubber jacketed flexible cable for coal mines.

Background

The wire and cable industry is the second industry in China, which is second to the automobile industry, and provides huge market space for cable products along with the continuous and rapid growth of China economy, and both the product variety satisfaction rate and the domestic market share exceed 90%. Among the various types of cables, the cabtyre cable is an indispensable type, and is a flexible and movable cable type in which a plurality of strands of filaments are used as conductors and are covered with rubber insulation or rubber sheaths, and is widely used in various electric appliances.

According to patent number 201720641452.7, a shielding monitoring type rubber jacketed flexible cable for underground mobile equipment of a coal mine is disclosed, which comprises a cable core and a semi-conductive wrapping layer, an inner jacket layer, a semi-conductive inner wrapping layer, a semi-conductive outer wrapping layer, a lining layer, a braided reinforcing layer and an outer jacket, wherein the semi-conductive wrapping layer, the inner jacket layer, the semi-conductive inner wrapping layer, the lining layer, the braided reinforcing layer and the outer jacket are sequentially arranged outside the cable core from inside to outside; the cable core comprises three wire cores, and a filling layer is arranged between the three wire cores and the semi-conductive wrapping tape wrapping layer; the cable core is composed of a conductor, an isolation layer, a conductor shielding layer, an insulation shielding layer and a weaving layer from inside to outside in sequence, the cable core is long in service life, has the advantages of being soft, oil-resistant, tear-resistant and excellent in mechanical performance, particularly excellent in flame retardant performance, can ensure that flame does not spread after a fire disaster happens under a coal mine, can maintain work within a short time, and can ensure that a control system, an electric power system, a monitoring system, a guiding system and an alarm system maintain normal use functions, personnel evacuation can be ensured, damage is reduced to the minimum degree, accident expansion is prevented, safety of the coal mine is protected, and requirements of practical application can be well met.

The defects of the prior art are that the existing mobile shielding monitoring cable is often extruded by external force when used in a mine, so that a protective sleeve of an internal circuit is broken to cause short circuit, even a local circuit is broken sometimes, and meanwhile, when the protective sleeve is broken, the underground mine is wet, water can enter the cable, so that the safety potential hazard is great.

Disclosure of Invention

The invention aims to provide a mobile shielding monitoring type rubber jacketed flexible cable for a coal mine, which can improve the extrusion resistance of the cable and prevent water from entering the cable from a crack.

Technical scheme

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme: the utility model provides a colliery is with removing shielding monitoring type rubber cover flexible cable, includes oversheath and inner sheath, be provided with anti extrusion subassembly in the oversheath, when the cable received the extrusion, slow down the extrusion force through anti extrusion subassembly, reduce the pressure that the inner sheath received to through set up in inner circuit is avoided wetting by the water stop film on the inner sheath outer wall

Preferably, the outer sheath comprises a polyvinyl chloride protective layer, a woven layer and a first wear-resistant layer, the woven layer is arranged on the outer wall of the first wear-resistant layer, and the polyvinyl chloride protective layer is sleeved on the outer wall of the woven layer.

Preferably, the anti-extrusion assembly comprises a rubber driving sleeve, an arc-shaped plate and a rubber driven sleeve, a plurality of rubber driving sleeves and a plurality of rubber driven sleeves are arranged on the inner wall of the first wear-resistant layer in a linear array according to the gradient, the rubber driven sleeves are located in the rubber driving sleeves, one end of the arc-shaped plate is fixedly installed on the inner wall of the rubber driving sleeve, and the other end of the arc-shaped plate is connected to the outer wall of the rubber driven sleeve in a sliding mode.

Preferably, the number of the arc-shaped plates is several, and the arc-shaped plates are obliquely and annularly arrayed between the rubber driving sleeve and the rubber driven sleeve.

Preferably, the inner wall of the inner sheath is sleeved with a filling layer, the outer wall of the inner sheath is sleeved with a water-proof film, and the outer wall of the water-proof film is provided with a semi-conducting layer.

Preferably, a second wear-resistant layer is sleeved on the inner wall of the rubber driven sleeve, and the semi-conducting layer is located in the second wear-resistant layer.

Preferably, the power line comprises a power line core conductor, a power line core insulating layer and a power line core insulating and shielding layer, wherein the power line core conductor is in an annular array in the filling layer, the power line core insulating layer is sleeved on the outer wall of the power line core conductor, and the power line core insulating and shielding layer is sleeved on the outer wall of the power line core insulating layer.

Preferably, the monitoring cable further comprises a monitoring cable, wherein the monitoring cable comprises a monitoring cable core conductor, a monitoring cable core insulating layer and a monitoring cable core shielding layer, the monitoring cable core shielding layer is positioned in the filling layer, the monitoring cable core insulating layer is sleeved on the inner wall of the monitoring cable core shielding layer, and the monitoring cable core conductor is sleeved on the inner wall of the monitoring cable core insulating layer.

Preferably, the ground wire further comprises a ground wire, the ground wire comprises two ground wire core conductors and two ground wire core insulating layers, the two ground wire core insulating layers are located in the filling layer, and the ground wire core conductors are sleeved on the inner wall of each ground wire core insulating layer.

Compared with the prior art, the mobile shielding monitoring type rubber jacketed flexible cable for the coal mine provided by the embodiment of the invention has the following beneficial effects:

according to the invention, the extrusion resistance of the cable can be improved, when the cable is impacted or extruded by external force, the force is transmitted to the rubber driving sleeve, and the rubber driving sleeve deforms, so that the arc-shaped plate is impacted and deformed, one end of the arc-shaped plate adjacent to the rubber driven sleeve slides on the outer wall of the rubber driven sleeve, and the arc-shaped plate has elasticity and plays a role in buffering, so that the extrusion force applied to the second wear-resistant layer is greatly reduced compared with that of the outer sheath, and the circuit in the inner sheath is protected.

The water-proof cable can prevent water from entering the cable from the crack, the outer sheath of the cable can be aged after the water-proof cable is used for a long time, so that the crack is generated, the underground of a mine is relatively humid, the water is separated from the outer surface of the inner sheath through the water-proof film, the damage to a circuit is avoided, and the service life of the cable is prolonged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the inner structure of the outer sheath of the present invention;

FIG. 4 is a schematic view of an anti-extrusion assembly of the present invention;

fig. 5 is a schematic view of the inner sheath structure of the present invention.

In the figure: 1. an outer sheath; 2. an anti-extrusion component; 3. a power line; 4. monitoring a line; 5. a ground line; 6. a second wear layer; 7. a water-barrier film; 8. a semiconducting layer; 9. an inner sheath; 10. a filling layer; 11. a polyvinyl chloride protective layer; 12. weaving layer; 13. a first wear resistant layer; 21. a rubber driving sleeve; 22. an arc-shaped plate; 23. a rubber passive sleeve; 31. a power core conductor; 32. a power wire core insulating layer; 33. the power wire core is provided with an insulating shielding layer; 41. monitoring the core conductor; 42. monitoring the core insulation layer; 43. monitoring the core shielding layer; 51. a ground core conductor; 52. and a ground wire core insulating layer.

Detailed description of the preferred embodiments

So that the objects, technical solutions and advantages of the embodiments of the present disclosure will be more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 5, the movable shielding monitoring type rubber jacketed flexible cable for coal mine provided by the invention is characterized in that a power line 3, a monitoring line 4 and a ground line 5 are arranged in a filling layer 10, the power line core conductor 31 is protected by a power line core insulating layer 32, an electric field generated by the power line core conductor 31 is homogenized by a power line core insulating layer 33, the monitoring line core conductor 41 is protected by a monitoring line core insulating layer 42, an electric field generated by the monitoring line core conductor 41 is homogenized by a monitoring line core shielding layer 43, meanwhile, the influence of an external electric field on the monitoring line core conductor 41 can be shielded, and the ground line core conductor 51 is protected by a ground line core insulating layer 52 to avoid the ground line core conductor 51 from being damaged.

Examples

As shown in fig. 1 to 4, including oversheath 1 and inner sheath 9, be provided with anti extrusion subassembly 2 in the oversheath 1, when receiving external force striking or extrusion, power transmission is to the rubber initiative cover 21 on, and make rubber initiative cover 21 warp, make arc template 22 receive impact and warp, the one end of the adjacent rubber passive cover 23 of arc template 22 slides on the outer wall of the passive cover 23 of rubber, because arc template 22 has elasticity, play the cushioning effect, the extrusion force that the second wearing layer 6 received this moment is compared with oversheath 1 and is reduced by a wide margin, the inside circuit of inner sheath 9 has been protected.

Examples

As shown in fig. 1, 2, 3 and 5, the braided layer 12 enhances the tensile strength of the cable, and when the cable is used, the polyvinyl chloride protective layer 11 and the first wear-resistant layer 13 can be prevented from cracking or breaking due to the stretching of the cable, so that the cable is further protected, and the service life of the cable is prolonged.

Examples

Further, as shown in fig. 1, 2, 3 and 5, water can be prevented from entering the cable from the crack, the outer sheath 1 of the cable can be aged after long-time use, so that cracks are generated, the underground mine is wet, water is separated outside the inner sheath 9 through the water-stop film 7, the damage of a line is avoided, and the service life of the cable is prolonged.

Examples

As shown in fig. 1, 2, 3, and 5, the semiconductive layer 8 equalizes an electric field generated in the conductive wire inside the second wear-resistant layer 6, thereby preventing the monitoring wire 4 from being used.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents of the invention may be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a colliery is with removing shielding monitoring type rubber cover flexible cable, includes oversheath (1) and inner sheath (9), its characterized in that: an anti-extrusion component (2) is arranged in the outer sheath (1), when the cable is extruded, extrusion force is relieved through the anti-extrusion component (2), pressure on the inner sheath (9) is reduced, and an internal circuit is prevented from being damped through a water-stop film (7) arranged on the outer wall of the inner sheath (9);

the anti-extrusion component (2) comprises a rubber driving sleeve (21), an arc-shaped plate (22) and a rubber driven sleeve (23), a plurality of rubber driving sleeves (21) and a plurality of rubber driven sleeves (23) are arranged on the inner wall of the first wear-resistant layer (13) in a linear array mode according to gradient through the arc-shaped plate (22), the rubber driven sleeves (23) are located in the rubber driving sleeve (21), one end of the arc-shaped plate (22) is fixedly installed on the inner wall of the rubber driving sleeve (21), and the other end of the arc-shaped plate is connected to the outer wall of the rubber driven sleeve (23) in a sliding mode;

the number of the arc-shaped plates (22) is a plurality, and the arc-shaped plates are obliquely and annularly arrayed between the rubber driving sleeve (21) and the rubber driven sleeve (23).

2. The mobile shielding monitoring type cabtyre flexible cable for coal mine according to claim 1, wherein: the outer sheath (1) comprises a polyvinyl chloride protective layer (11), a woven layer (12) and a first wear-resistant layer (13), the woven layer is arranged on the outer wall of the first wear-resistant layer (13), and the polyvinyl chloride protective layer (11) is sleeved on the outer wall of the woven layer (12).

3. The mobile shielding monitoring type cabtyre flexible cable for coal mine according to claim 1, wherein: the inner wall of the inner sheath (9) is sleeved with a filling layer (10), the outer wall of the inner sheath is sleeved with a water-stop film (7), and the outer wall of the water-stop film (7) is provided with a semi-conducting layer (8).

4. The mobile shielding monitoring type cabtyre flexible cable for coal mine according to claim 1, wherein: the inner wall of the rubber driven sleeve (23) is sleeved with a second wear-resistant layer (6), and the semi-conducting layer (8) is located in the second wear-resistant layer (6).

5. The mobile shielding monitoring type cabtyre flexible cable for coal mine according to claim 1, wherein: still include power line (3), power line (3) are including power sinle silk conductor (31), power sinle silk insulating layer (32), power sinle silk insulation shield (33), power sinle silk conductor (31) are the annular array in filling layer (10), cup joint power sinle silk insulating layer (32) on the outer wall of power sinle silk conductor (31), cup joint power sinle silk insulation shield (33) on the outer wall of power sinle silk insulating layer (32).

6. The mobile shielding monitoring rubber-jacketed flexible cable for coal mines according to claim 1, wherein: still including monitoring line (4), monitor line (4) including monitoring sinle silk conductor (41), monitoring sinle silk insulating layer (42), monitoring sinle silk shielding layer (43), it is located filling layer (10) to monitor sinle silk shielding layer (43), it has monitored sinle silk insulating layer (42) to cup joint on the inner wall of monitoring sinle silk shielding layer (43), it has monitored sinle silk conductor (41) to cup joint on the inner wall of monitoring sinle silk insulating layer (42).

7. The mobile shielding monitoring type cabtyre flexible cable for coal mine according to claim 1, wherein: still include ground wire (5), ground wire (5) are including ground core conductor (51) and ground core insulating layer (52), the quantity of ground core insulating layer (52) is two, and all is located filling layer (10), ground core conductor (51) have been cup jointed on the inner wall of ground core insulating layer (52).