CN210692131U

CN210692131U - Plastic steel strip overlapping wrapping armored cable

Info

Publication number: CN210692131U
Application number: CN201921826095.7U
Authority: CN
Inventors: 赵志阳
Original assignee: Hubei Lisheng Cable Co ltd
Current assignee: Hubei Lisheng Cable Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-05
Anticipated expiration: 2029-10-28

Abstract

The utility model relates to a plastic steel strip overlapping wrapping armored cable, which consists of an outer sheath, an armor layer, an inner cushion layer and a cable core from outside to inside, wherein the cable core consists of one or more insulating wire cores, and the insulating wire cores consist of an insulating layer and a conductor at least; the cable core is overlapped with the wrapping inner cushion layer, the armor layer formed by steel belts is arranged outside the inner cushion layer, and the outer sheath is arranged outside the armor layer. Will the utility model discloses cable structure is simple, and performance is good, and the production of being convenient for improves production efficiency greatly.

Description

Plastic steel strip overlapping wrapping armored cable

Technical Field

The utility model relates to an electric wire and cable, especially a plastic steel strip overlaps around package armoured cable.

Background

The electric wire and cable can have some risks in use and transportation, so that a plurality of enterprises armor the electric wire and cable, and the use of the technology effectively avoids the electric wire and cable from being damaged in the transportation process, the installation process and after the installation is finished.

In addition, various plastic power cables are subjected to various mechanical external forces such as bending, stretching, torsion, positive pressure, impact, vibration and the like during laying. All mechanical external forces applied to the cable can cause certain damage to the cable. In order to protect the structural integrity and electrical performance of the cable and prolong the service life of the cable, it is necessary to add an armor layer on the outer protective layer of the cable.

However, in the production process, the steel tape armoring is generally wrapped by adopting a semi-tangential double-layer gap, which is very convenient for producing the cable with larger section, more cores and larger outer diameter, but when producing the cable with small specification, small outer diameter and less cores, the influence of poor tensile capability of the cable and overlarge paying-off tension of the steel tape is received, the production efficiency is extremely low, for example YJV 222 is 1.5, the production amount per hour is less than 300 meters, and meanwhile, the cable core has the risk of being thinned to cause unqualified finished products due to large tension in the production process.

SUMMERY OF THE UTILITY MODEL

In view of the above situation, there is a need to provide a small-sized plastic steel strip lapped cable, which is suitable for popularization and application.

A plastic steel strip overlapping wrapping armored cable is composed of an outer sheath, an armor layer, an inner cushion layer and a cable core from outside to inside, wherein the cable core is composed of one or more insulating wire cores, and each insulating wire core is composed of an insulating layer and a conductor;

the conductor is formed by twisting a plurality of annealed soft round copper wires together in a regular twisting mode, and an insulating layer is arranged outside the conductor;

the plurality of the insulated wire cores are cabled into cable cores as required, gaps among the cable cores are tightly filled with filling materials, and the cable cores are externally overlapped with a wrapping inner cushion layer;

an armor layer consisting of steel belts is arranged outside the inner cushion layer, and an outer sheath is arranged outside the armor layer;

the steel belt wrapping in the armor layer is divided into two layers, the direction of the first layer of steel belt is opposite to that of the inner cushion layer of the wrapping, and the direction of the second layer of steel belt is opposite to that of the first layer of steel belt;

the inner cushion layer wrapping and the armor layer wrapping adopt multi-section concentric wrapping equipment.

Preferably, the filling material used in the gaps between the cable cores is aluminum hydroxide flame-retardant filler.

Preferably, the insulating layer arranged outside the conductor is made of a cross-linked polyethylene material.

Above-mentioned plastic steel band overlaps around package armoured cable, when using in engineering projects such as the people sends out real estate, the user reflects well, and simultaneous working convenient operation, convenient production, in the production process, because technology changes, has improved production efficiency, but former technology is double-deck clearance around the package, and the steel strip material quantity is few, and technology changes to overlap around the package back, and the steel strip material can increase 25%, comprehensive assessment, and direct economic benefits is less, and it is mainly that the production quality risk is littleer, and efficiency is higher, therefore, the utility model discloses compare current open technology and brought better production efficiency for the enterprise, also be convenient for better popularization and application simultaneously.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of an embodiment of the present invention;

fig. 2 is a structure diagram of a wrapping structure according to an embodiment of the present invention;

fig. 3 is a second wrapping structure diagram according to an embodiment of the present invention.

In the figure: 1. an outer sheath; 2. an armor layer; 201. a first layer of steel strip; 202. a second layer of steel strip; 3. an inner cushion layer; 4. a cable core; 401. an insulated wire core; 402. an insulating layer; 403. a conductor; 404. and (4) filling materials.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following description, with reference to the accompanying drawings and embodiments, is a further detailed description of the plastic steel strip overlapping wrapping armored cable of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The first embodiment is as follows:

referring to fig. 1-2, in an embodiment of the present invention, a plastic steel strip overlapping wrapped armored cable is composed of an outer sheath 1, an armor layer 2, an inner cushion layer 3, and a cable core 4 from outside to inside, wherein the cable core 4 is composed of one or more insulated wire cores 401, and the insulated wire cores 401 are composed of at least an insulating layer 402 and a conductor 403;

the conductor 403 is twisted by a plurality of annealed soft round copper wires in a regular twisting way, and the direct current resistance at 20 ℃ meets the relevant regulations of product standards or processes; arranging an insulating layer 402 outside the conductor 403, wherein the material of the insulating layer 402 is determined according to product standards or production processes, and the insulating extrusion method and the extrusion size are in accordance with the specifications of the product standards and the production processes;

the plurality of insulating wire cores 401 need to be cabled to form cable cores 4, the cabling pitch of the cable cores 4 is given by a product, the principle that the bending radius of the cable is met is taken as a principle, gaps among the cable cores 4 are tightly filled with filling materials 404, the cable cores are externally overlapped with the wrapping inner cushion layer 3, and the inner cushion layer 3 adopts a clockwise wrapping mode; the thickness, the width and the overlapping rate of the inner cushion layer 3 are based on the principle that the finished cable is bent;

an armor layer 2 consisting of steel belts is arranged outside the inner cushion layer 3, the steel belts are plastic steel belts with the total thickness of 0.2mm and the width of 15mm, the steel belt wrapping process is double-layer reverse overlapping wrapping, and the wrapping overlapping rate of each single layer is at least 20% of the width of the steel belt; the steel belt wrapping is divided into two layers, the first layer of steel belt 201 is wrapped in the anticlockwise direction, the wrapping direction of the first layer of steel belt is opposite to that of the inner cushion layer 3, and the second layer of steel belt 202 is wrapped in the clockwise direction, and the wrapping direction of the second layer of steel belt is opposite to that of the first layer of steel belt 201;

in addition, an outer sheath 1 is arranged outside the armor layer 2, the material of the outer sheath 1 meets the product standard or the specification of a process file, and the extrusion method and the extrusion size of the outer sheath 1 meet the specification of the product standard and the production process.

Example two:

referring to fig. 1 and fig. 3, in an embodiment of the present invention, a plastic steel strip overlapping wrapped armored cable is composed of an outer sheath 1, an armor layer 2, an inner cushion layer 3, and a cable core 4 from outside to inside, wherein the cable core 4 is composed of one or more insulated wire cores 401, and the insulated wire cores 401 are composed of at least an insulating layer 402 and a conductor 403;

the plurality of insulating wire cores 401 need to be cabled to form cable cores 4, the cabling pitch of the cable cores 4 is given by a product, the principle that the bending radius of the cable is met is taken as a principle, gaps among the cable cores 4 are tightly filled with filling materials 404, the cable cores are externally overlapped with the lapping inner cushion layer 3, and the inner cushion layer 3 adopts an anticlockwise lapping mode; the thickness, the width and the overlapping rate of the inner cushion layer 3 are based on the principle that the finished cable is bent;

an armor layer 2 consisting of steel belts is arranged outside the inner cushion layer 3, the steel belts are plastic steel belts with the total thickness of 0.2mm and the width of 15mm, the steel belt wrapping process is double-layer reverse overlapping wrapping, and the wrapping overlapping rate of each single layer is at least 20% of the width of the steel belt; the steel belt wrapping is divided into two layers, the first layer of steel belt 201 is wrapped clockwise and is opposite to the wrapping direction of the inner cushion layer 3, and the second layer of steel belt 202 is wrapped anticlockwise and is opposite to the wrapping direction of the first layer of steel belt 201;

In the first embodiment and the second embodiment, the processes of lapping the inner cushion layer 3 and the armor layer 2 are realized, a multi-section concentric lapping device is selected, the lapping speed can reach 1500 revolutions per minute, the maximum output per minute can reach 18 meters, and the maximum output per hour can reach 1080 meters, compared with the traditional production mode, the efficiency is improved by more than 3 times, and the production progress is greatly improved; in addition, the filling material 404 used in the gap between the cable cores 4 is aluminum hydroxide flame-retardant filler, and the insulating layer 402 arranged outside the conductor 403 is made of cross-linked polyethylene material, so that a better using effect is provided for the whole cable.

With the cable of above-mentioned embodiment one, embodiment two preparation, use engineering projects such as the people sends out real estate, the user reflects well, and simultaneous working convenient operation, convenient production, in the production process, because technology changes, production efficiency has been improved, but former technology is double-deck clearance around the package, and the steel strip material quantity is few, and technology changes to overlap around the package after, and the steel strip material can increase 25%, comprehensive assessment, and direct economic benefits is less, and it is littleer mainly to produce the quality risk, and efficiency is higher, consequently, the utility model discloses compare the current technique of disclosing and brought better production efficiency for the enterprise, also be convenient for better popularization and application simultaneously.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a plastic steel strip overlaps around package armoured cable, constitutes its characterized in that from the extroversion to the inside by oversheath (1), armor (2), inner cushion layer (3) and cable core (4) jointly: the cable core (4) consists of one or more insulated wire cores (401), and the insulated wire cores (401) consist of an insulating layer (402) and a conductor (403);

the conductor (403) is stranded together by a plurality of annealed soft round copper wires in a regular stranding mode, and an insulating layer (402) is arranged outside the conductor (403);

the plurality of the insulated wire cores (401) are cabled into the cable core (4) according to the requirement, gaps among the cable cores (4) are tightly filled by using a filling material (404), and the cable core (4) is externally overlapped with a wrapping inner cushion layer (3);

an armor layer (2) consisting of steel belts is arranged outside the inner cushion layer (3), and an outer sheath (1) is arranged outside the armor layer (2);

the steel belt wrapping in the armor layer (2) is divided into two layers, the direction of the first layer of steel belt (201) is opposite to that of the wrapping inner cushion layer (3), and the wrapping direction of the second layer of steel belt (202) is opposite to that of the first layer of steel belt (201);

the inner cushion layer (3) and the armor layer (2) adopt multi-section concentric wrapping equipment, and the armor layer (2) is formed by adopting an overlapping wrapping process.

2. The plastic steel strip lapped and armored cable as claimed in claim 1, wherein: and the filling material (404) used in the gaps between the cable cores (4) is aluminum hydroxide flame-retardant filler.

3. The plastic steel strip lapped and armored cable as claimed in claim 1, wherein: the insulating layer (402) arranged outside the conductor (403) is made of cross-linked polyethylene material.