CN219553260U

CN219553260U - Torsion-resistant cable

Info

Publication number: CN219553260U
Application number: CN202320011593.6U
Authority: CN
Inventors: 闵润州; 何成国; 王娟
Original assignee: Anhui Zongheng Hi Tech Cable Co ltd
Current assignee: Anhui Zongheng Hi Tech Cable Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-08-18
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses a torsion-resistant cable, which comprises an insulating cable core and a tensile rope, wherein the insulating cable core is distributed around the outer side of the tensile rope, a PTFE outer wrapping layer is arranged on the outer side of the cable core, filling materials are filled in gaps on the inner sides of the cable core and the PTFE outer wrapping layer, a torsion-resistant layer is arranged on the outer side of the PTFE outer wrapping layer and consists of a plurality of non-rotating steel wires, and the outer side of the torsion-resistant layer is sequentially coated with an insulating waterproof corrosion-resistant layer and a low-smoke halogen-free polyolefin outer sheath. According to the torsion-resistant cable, the torsion-resistant layer is arranged on the outer side of the PTFE outer winding layer, and meanwhile, the tension-resistant rope is arranged in the cable core, so that the torsion resistance and the stretching resistance of the industrial cable are greatly improved. Through filling with the filler, can protect the insulated wire core in certain extent when taking place extrusion or vibrations, be provided with polyethylene insulating layer, shielding layer and PTFE inner wrapping layer in the inner conductor outside simultaneously, further protect the insulated wire core inner conductor.

Description

Torsion-resistant cable

Technical Field

The utility model relates to the technical field of cables, in particular to a torsion-resistant cable.

Background

Industrial electric wires and cables include single-core electric wires and cables, rubber cables, shielding control cables, flame-retardant cables, fire-resistant cables and the like, and the existing industrial cables have the following problems that the cables are often required to be bent and stretched in the use process, the existing cable is not good in stretching and torsion resistance effect and is easy to damage, the existing industrial cables are insufficient in inner conductor protection, a series of problems affecting the use effect can occur when the inner conductors are used for a long time, such as rainwater soaking, magnetic field interference, extrusion deformation and the like, and finally the cable replacement improves the use cost.

Disclosure of Invention

The utility model aims to provide a torsion-resistant cable so as to solve the problems of poor tensile and torsion-resistant effects and insufficient protection of cable cores of industrial cables in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a torsion-resistant cable, includes the cable core, the cable core includes insulation core and tensile rope, and insulation core around tensile rope outside distribution, the cable core outside is provided with the PTFE and winds the covering outward, and the cable core and the PTFE is around the inboard vacancy department of covering outward and fill with the filler, the antitorque layer is installed outward around the covering outside to the PTFE, and the antitorque layer comprises many rotatory wire ropes, the insulating waterproof anti-corrosion layer and low smoke and zero halogen polyolefin oversheath have been wrapped in proper order in the antitorque layer outside.

Preferably, the insulated wire core comprises an inner conductor, and the outer part of the inner conductor is sequentially coated with a polyethylene insulating layer, a shielding layer and a PTFE inner wrapping layer.

Preferably, the inner conductor is formed by a plurality of tinned copper monofilaments.

Preferably, the shielding layer is formed by co-rotating spiral winding of inner and outer double-layer tinned copper monofilaments, and the winding distance and the spiral angle of the inner layer tinned copper monofilaments and the outer layer tinned copper monofilaments are the same.

Preferably, the filler is composed of polyester fiber and rubber, and has compression and shock absorption effects on the cable core wrapped by the filler.

Preferably, the insulating waterproof corrosion-resistant layer is a PE resin base layer, and a waterproof corrosion-resistant functional coating is sprayed on the PE resin base layer.

Compared with the prior art, the utility model has the beneficial effects that: the torsion-resistant cable is used for the connection of the cable,

(1) The anti-torsion layer is arranged on the outer side of the PTFE outer winding layer, and meanwhile, the anti-pulling rope is arranged in the cable core, so that the anti-torsion and anti-stretching capacity of the industrial cable is greatly improved.

(2) Through filling with the filler at cable core and the inboard vacancy of PTFE outer cladding, can protect the insulated wire core in certain limit when taking place extrusion or vibrations, be provided with polyethylene insulating layer, shielding layer and PTFE inner cladding in the inner conductor outside simultaneously, further protect the insulated wire core inside inner conductor.

Drawings

FIG. 1 is a schematic cross-sectional structure of the present utility model;

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

fig. 3 is a schematic diagram of the insulated wire core structure of the present utility model.

In the figure: 1. the cable comprises a cable core, 2, an insulating cable core, 201, an inner conductor, 202, a polyethylene insulating layer, 203, a shielding layer, 204, a PTFE inner wrapping layer, 3, an anti-pulling rope, 4, a PTFE outer wrapping layer, 5, a filler, 6, a torsion resistant layer, 7, an insulating waterproof corrosion resistant layer and 8, a low smoke halogen-free polyolefin outer sheath.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: according to the torsion-resistant cable shown in fig. 1-3, the cable core 1 comprises an insulated wire core 2 and a tensile cord 3, and the insulated wire core 2 is distributed around the outer side of the tensile cord 3.

Specifically, the insulated wire core 2 includes an inner conductor 201, and the outer portion of the inner conductor 201 is sequentially coated with a polyethylene insulation layer 202, a shielding layer 203 and a PTFE inner wrapping layer 204.

Specifically, the inner conductor 201 is formed of a plurality of tin-plated copper monofilaments.

Specifically, the shielding layer 203 is formed by co-rotating spiral winding of inner and outer double-layer tinned copper monofilaments, and the winding distance and the spiral angle of the inner layer tinned copper monofilaments and the outer layer tinned copper monofilaments are the same.

In a further embodiment, the tensile rope 3 is arranged in the middle of the insulating wire core 2 and penetrates through the filler 5, the tensile rope 3 is formed by weaving aramid fibers, the tensile capacity of the cable core 1 can be greatly improved through the tensile rope 3, meanwhile, the arrangement of the polyethylene insulating layer 202 is used for isolating internal current of the inner conductor 201, the saturated water absorption rate of polyethylene is less than 0.5%, the water blocking performance is high, moisture is effectively inhibited from penetrating from outside to inside, the shielding layer 203 is a tinned copper weaving layer, external electromagnetic interference can be effectively shielded, the PTFE inner wrapping layer 204 has excellent electrical insulation, chemical stability and special properties of temperature resistance, and the inner conductor 201 is further protected from rainwater to a certain extent in the later stage.

According to fig. 1-2, the outer side of the cable core 1 is provided with a PTFE outer wrapping layer 4, and the gaps inside the cable core 1 and the PTFE outer wrapping layer 4 are filled with a filler 5.

Specifically, the filler 5 is made of polyester fiber and rubber, and has compression and shock absorption effects on the cable core 1 wrapped by the filler.

In a further embodiment, the PTFE outer wrapping layer 4 adopts a gap wrapping structure, so that the friction phenomenon of the PTFE resin tape and the resistance in the twisting process can be effectively reduced, the torsion resistance of the cable is improved, and meanwhile, the cable core 1 inside the cable is protected.

According to the illustration shown in fig. 1-2, the anti-torsion layer 6 is arranged on the outer side of the PTFE outer winding cladding 4, the anti-torsion layer 6 consists of a plurality of non-rotating steel wires, and the outer side of the anti-torsion layer 6 is sequentially coated with an insulating waterproof anti-corrosion layer 7 and a low smoke halogen-free polyolefin outer sheath 8.

Specifically, the insulating waterproof corrosion-resistant layer 7 is a PE resin base layer, and a waterproof corrosion-resistant functional coating is sprayed on the PE resin base layer.

In a further embodiment, the torsion resistant layer 6 can effectively improve the tensile and torsion resistance of the cable, ensure that the cable has good torsion resistance in the use process, the insulating anti-corrosion layer 7 can improve the anti-corrosion performance of the cable, effectively block the corrosion of corrosive gas-liquid to the cable, improve the chemical corrosion resistance of the cable, enhance the weather resistance and delay the service life, and the low smoke halogen-free polyolefin outer sheath 8 is a silane grafted crosslinked high density polyethylene outer sheath and has the effects of corrosion resistance, wear resistance and the like.

What is not described in detail in this specification is prior art known to those skilled in the art.

The terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for descriptive simplicity and convenience only and not as an indication or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated for a particular orientation, based on the orientation or positional relationship illustrated in the drawings, and thus should not be construed as limiting the scope of the present utility model.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Torsion-resistant cable comprising a cable core (1), characterized in that: cable core (1) is including insulating sinle silk (2) and tensile rope (3), and insulating sinle silk (2) are around tensile rope (3) outside distribution, cable core (1) outside is provided with PTFE and winds covering (4) outward, and cable core (1) and PTFE are around covering (4) inboard vacancy department filling has filler (5), antitorque layer (6) are installed in PTFE outside around covering (4) outside, and antitorque layer (6) are constituteed by many rotatory wire rope, insulating waterproof anti-corrosion layer (7) and low smoke zero halogen polyolefin oversheath (8) have wrapped gradually in the antitorque layer (6) outside.

2. A torsion resistant cable according to claim 1, wherein: the insulated wire core (2) comprises an inner conductor (201), and a polyethylene insulating layer (202), a shielding layer (203) and a PTFE inner wrapping layer (204) are sequentially coated outside the inner conductor (201).

3. A torsion resistant cable according to claim 2, wherein: the inner conductor (201) is formed by a plurality of tinned copper monofilaments.

4. A torsion resistant cable according to claim 2, wherein: the shielding layer (203) is formed by co-rotating spiral winding of inner and outer double-layer tinned copper monofilaments, and the winding distance and the spiral angle of the inner layer tinned copper monofilaments and the outer layer tinned copper monofilaments are the same.

5. A torsion resistant cable according to claim 1, wherein: the filler (5) is composed of polyester fibers and rubber, and has compression and shock absorption effects on the cable core (1) wrapped by the filler.

6. A torsion resistant cable according to claim 1, wherein: the insulating waterproof anti-corrosion layer (7) is a PE resin base layer, and a waterproof anti-corrosion functional coating is sprayed on the PE resin base layer.