CN223967062U - Tensile high-flame-retardance cable - Google Patents

Abstract

The utility model discloses a tensile high-flame-retardance cable, which comprises a cable core, wherein the cable core comprises a wire core and a filling layer, a wrapping layer is arranged outside the cable core, an insulating lining layer is arranged outside the wrapping layer, a composite flame-retardance layer is arranged outside the insulating lining layer, a compression-retardance layer is arranged outside the composite flame-retardance layer, an armor layer is arranged outside the compression-retardance layer, the composite flame-retardance layer, the compression-retardance layer and the armor layer are sequentially attached to the outside of the insulating lining layer, an outer sheath is arranged outside the armor layer, the outer sheath and the armor layer are formed through extrusion, the flame-retardance layer of the cable adopts a composite structure, the flame-retardance performance of the cable is improved, the compression-retardance layer is arranged inside the cable, impact energy is effectively absorbed when the cable is subjected to external force, the flame-retardance layer is protected, and the armor layer and the anti-wiredrawing layer arranged inside the cable enable the cable to be flexible and have better tensile performance, and the use effect of the cable is improved.

Description

Tensile high-flame-retardance cable

Technical Field

The utility model relates to the technical field of cables, in particular to a tensile high-flame-retardance cable.

Background

The cable is made of one or more mutually insulated conductors and an insulating protective layer, is laid in the ground, the air and the like, and is generally composed of conductors, insulating layers and protective layers, wherein the flame-retardant cable is a cable which is burnt under the specified test conditions, flame spread is only within a limited range after a test fire source is removed, and residual flame or residual burning can be automatically extinguished within a limited time, and the cable is possibly burnt out and cannot run under the fire condition, but can prevent the spread of fire, and the tensile cable is widely used for electric energy transmission of equipment such as reels, conveyors, lifting electromagnets, electric flat cars, various cranes, large-scale reclaimers and the like.

The invention discloses a high-tensile flame-retardant cable, which comprises an outer sheath, a steel wire armor layer, a crosslinked polyethylene insulating layer, a flame-retardant sheath layer, a tensile core and a cable core, wherein the tensile core is a dipped aramid fiber bundle, the cable core and the dipped aramid fiber bundle are fixed by wrapping through a mica tape, and the high-tensile flame-retardant cable has excellent tensile flame-retardant performance and can meet the use requirements of general scenes.

The existing cable is internally provided with the galvanized steel wire tensile core to meet the tensile requirement, and the galvanized steel wire tensile core can meet the tensile requirement, but simultaneously reduces the flexibility of the cable, bends the cable forcibly, easily breaks the flame-retardant layer, reduces the flame-retardant effect of the cable and cannot meet the use requirement.

Disclosure of utility model

The utility model aims to provide a high-tensile flame-retardant cable, which aims to solve the problems that in the prior art, a galvanized steel wire tensile core is added in the existing cable to meet the tensile requirement, and the galvanized steel wire tensile core can meet the tensile requirement, but simultaneously reduces the flexibility of the cable, forcibly bends the cable to easily damage a flame-retardant layer, reduces the flame-retardant effect of the cable and cannot meet the use requirement.

In order to achieve the above purpose, the utility model provides the technical scheme that the high-tensile flame-retardant cable comprises a cable core, wherein the cable core comprises a cable core and a filling layer, a wrapping layer is arranged outside the cable core, an insulating inner liner layer is arranged outside the wrapping layer, the insulating inner liner layer and the wrapping layer are formed through extrusion, a composite flame-retardant layer is arranged outside the insulating inner liner layer, a compression-resistant layer is arranged outside the composite flame-retardant layer, an armor layer is arranged outside the compression-resistant layer, the composite flame-retardant layer, the compression-resistant layer and the armor layer are sequentially attached to the outside of the insulating inner liner layer, an outer sheath is arranged outside the armor layer, and the outer sheath and the armor layer are formed through extrusion.

Preferably, the wire core comprises a conductor, an insulating layer, a shielding layer and a graphene coating, the conductor is formed by twisting a plurality of fine twisted copper wires, the insulating layer is arranged outside the conductor, the shielding layer is arranged outside the insulating layer, the insulating layer and the shielding layer are formed outside the conductor in a sequential extrusion mode, the graphene coating is arranged on the outer wall of the shielding layer, and the graphene coating and the shielding layer are coated into a whole.

Preferably, the composite flame-retardant layer comprises a flame-retardant inner layer, a flame-retardant outer layer and a heat-insulating layer, wherein the flame-retardant outer layer is arranged outside the flame-retardant inner layer, the heat-insulating layer is arranged between the flame-retardant inner layer and the flame-retardant outer layer, and the flame-retardant inner layer, the flame-retardant outer layer and the heat-insulating layer are integrated through lamination.

Preferably, the armor comprises a base layer and a reinforcing layer, the reinforcing layer is arranged outside the base layer, and the reinforcing layer is arranged outside the base layer in a braiding and winding manner.

Preferably, the oversheath includes the jacket, tensile silk and ageing resistance coating, tensile silk sets up in the inside of jacket, and tensile silk is provided with six at least, and tensile silk is at the inside equidistance setting of jacket, be provided with ageing resistance coating on the outer wall of jacket, and ageing resistance coating and jacket coating are as an organic whole.

Preferably, the wire cores are arranged in five, the five wire cores are arranged in the cable cores at equal intervals, and the filling layer is arranged at the gaps of the five cable cores.

Preferably, the wrapping layer is spirally wound on the outside of the cable core.

Compared with the prior art, the utility model has the beneficial effects that:

The device is characterized in that a conductor adopts a fine stranded copper wire bundling twisting mode to enhance the integral strength and flexibility of a wire core, the composite flame retardant layer is formed by a flame retardant inner layer, a flame retardant outer layer and a heat insulation layer, the flame retardant inner layer adopts ceramic fireproof silicon rubber, the flame retardant inner layer has excellent flame retardant property, can quickly form a heat insulation barrier when a fire disaster occurs to prevent flame propagation, the flame retardant outer layer adopts halogen-free low-smoke flame retardant polyolefin, has excellent properties of low smoke, low toxicity, flame retardance, low corrosiveness and the like, the heat insulation layer adopts an inorganic flame retardant material, has good heat insulation property, can slow down the influence of fire on the inside of a cable, increases the flame retardant property of the cable, adopts nylon fiber, has good buffering property and energy absorption property, can absorb impact energy in the twisting process, protects the inside structure of the cable, and the tensile wire adopts a carbon fiber woven belt, has excellent mechanical property and fatigue resistance, can bear larger torque and bending stress, enhances the tensile capacity and improves the use effect of the cable;

The device provided by the utility model has the advantages that through the arrangement of the armor layer, the armor layer is formed by combining the base layer and the reinforcing layer, the base layer adopts the cold-rolled steel strip, the cold-rolled steel strip has good mechanical strength and corrosion resistance, the external pressure and the tensile force can be effectively resisted, the reinforcing layer adopts the glass fiber, the weight is light, the strength is high, the corrosion resistance is good, the mechanical strength of the armor layer can be further improved, and the larger tensile resistance can be borne.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

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

FIG. 3 is a block diagram of a composite flame retardant layer of the present utility model;

FIG. 4 is a block diagram of an armor layer of the present utility model;

Fig. 5 is a structural view of an outer sheath of the present utility model.

The cable comprises a cable core, a wire core, a filling layer, a wrapping layer, an insulating lining layer, a composite flame-retardant layer, a pressure-resistant layer, an armor layer, an outer sheath, a tensile wire, a conductor, a insulating layer, a shielding layer, a graphene coating, a flame-retardant inner layer, a flame-retardant outer layer, a heat-insulating layer, a base layer, a reinforcing layer, a coating layer and an anti-aging coating layer.

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.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the utility model provides a high fire-retardant cable of tensile, including cable core 1, cable core 1 includes sinle silk 2 and filling layer 3, cable core 1's outside is provided with around covering 4, around covering 4's outside is provided with insulating inner liner 5, and through crowded package shaping between insulating inner liner 5 and the covering 4, insulating inner liner 5's outside is provided with compound fire-retardant layer 6, compound fire-retardant layer 6's outside is provided with compressive layer 7, compressive layer 7's outside is provided with armor 8, and compound fire-retardant layer 6, compressive layer 7 and armor 8 laminate in proper order in insulating inner liner 5's outside and set up, armor 8's outside is provided with oversheath 9, and through crowded package shaping between oversheath 9 and the armor 8, sinle silk 2 includes conductor 11, insulating layer 12, shielding layer 13 and graphene coating 14, and conductor 11 is formed by many smart hank copper wires transposition, insulating layer 12 sets up in conductor 11's outside, shielding layer 13 sets up in insulating layer 12's outside, and insulating layer 12 and shielding layer 13 outside at conductor 11's outside is provided with graphene coating 14 on shielding layer 13's the outer wall in proper order through crowded package shaping, and graphene coating sets up at five cable core 1 at the inside of 5, and five cable layers are set up at 5, five cable layers are 1, setting up 5 the inside the 5, five cable layers are wound to be the setting up at the 5.

Referring to fig. 1 and 3, the composite flame retardant layer 6 includes a flame retardant inner layer 15, a flame retardant outer layer 16 and a heat insulating layer 17, the flame retardant outer layer 16 is disposed outside the flame retardant inner layer 15, the heat insulating layer 17 is disposed between the flame retardant inner layer 15 and the flame retardant outer layer 16, the flame retardant inner layer 15, the flame retardant outer layer 16 and the heat insulating layer 17 are laminated into a whole, the flame retardant inner layer 15 adopts ceramic fireproof silicone rubber, has excellent flame retardant performance, can quickly form a heat insulating barrier when a fire disaster occurs, prevents the spread of the fire, the flame retardant outer layer 16 adopts halogen-free low-smoke flame retardant polyolefin, has excellent performances such as low smoke, low toxicity, flame retardance, low corrosiveness and the like, the heat insulating layer 17 adopts inorganic flame retardant materials, has good heat insulating performance, can slow down the influence of fire on the inside of a cable, and the flame retardant performance of the cable is increased by combining the flame retardant inner layer 15, the flame retardant outer layer 16 and the heat insulating layer 17.

Referring to fig. 1 and 4, the armor layer 8 includes a base layer 18 and a reinforcing layer 19, the reinforcing layer 19 is disposed outside the base layer 18, and the reinforcing layer 19 is disposed outside the base layer 18 by braiding and winding, the base layer 18 is made of a cold-rolled steel strip, so that the armor layer has good mechanical strength and corrosion resistance, and can effectively resist external pressure and tension, and the reinforcing layer 19 is made of glass fiber, so that the armor layer 8 has the advantages of light weight, high strength, good corrosion resistance, and the like, and can further enhance the mechanical strength of the armor layer 8.

Referring to fig. 1 and 5, the outer sheath 9 includes an outer coating 20, tensile wires 10 and an anti-aging coating 21, the tensile wires 10 are arranged in the outer coating 20, the tensile wires 10 are at least six, the tensile wires 10 are equidistantly arranged in the outer coating 20, the anti-aging coating 21 is arranged on the outer wall of the outer coating 20, the anti-aging coating 21 and the outer coating 20 are integrally coated, the outer coating 20 is made of polyester fibers, and the anti-aging coating has excellent mechanical properties and fatigue resistance, can enhance the strength and wear resistance of the outer sheath, the tensile wires 10 are made of carbon fiber woven belts, have excellent mechanical properties and fatigue resistance, can bear larger torque and bending stress, enhance the tensile capacity, and the anti-aging coating 21 is made of polyolefin, can resist ultraviolet resistance and oxidation corrosion, and prolongs the service life of the cable.

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

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

Claims (7)

1. The tensile high-flame-retardance cable comprises a cable core (1), and is characterized in that the cable core (1) comprises a cable core (2) and a filling layer (3), a wrapping layer (4) is arranged outside the cable core (1), an insulating inner liner (5) is arranged outside the wrapping layer (4), an insulating inner liner (5) and the wrapping layer (4) are formed through extrusion, a composite flame-retardance layer (6) is arranged outside the insulating inner liner (5), a compression-retardance layer (7) is arranged outside the composite flame-retardance layer (6), an armor layer (8) is arranged outside the compression-retardance layer (7), the compression-retardance layer (6), the armor layer (7) and the armor layer (8) are sequentially attached to the outside of the insulating inner liner (5), an outer jacket (9) is arranged outside the armor layer (8), and the outer jacket (9) and the armor layer (8) are formed through extrusion.

2. The tensile high-flame-retardant cable according to claim 1, wherein the cable core (2) comprises a conductor (11), an insulating layer (12), a shielding layer (13) and a graphene coating (14), the conductor (11) is formed by twisting a plurality of fine twisted copper wires, the insulating layer (12) is arranged outside the conductor (11), the shielding layer (13) is arranged outside the insulating layer (12), the insulating layer (12) and the shielding layer (13) are sequentially formed outside the conductor (11) through extrusion, the graphene coating (14) is arranged on the outer wall of the shielding layer (13), and the graphene coating (14) and the shielding layer (13) are coated into a whole.

3. The tensile high-flame-retardant cable according to claim 1, wherein the composite flame-retardant layer (6) comprises a flame-retardant inner layer (15), a flame-retardant outer layer (16) and a heat insulation layer (17), the flame-retardant outer layer (16) is arranged outside the flame-retardant inner layer (15), the heat insulation layer (17) is arranged between the flame-retardant inner layer (15) and the flame-retardant outer layer (16), and the flame-retardant inner layer (15), the flame-retardant outer layer (16) and the heat insulation layer (17) are integrated through lamination.

4. The tensile high-flame-retardant cable according to claim 1, wherein the armor layer (8) comprises a base layer (18) and a reinforcing layer (19), the reinforcing layer (19) is arranged outside the base layer (18), and the reinforcing layer (19) is braided and wound outside the base layer (18).

5. The tensile high-flame-retardant cable according to claim 1, wherein the outer sheath (9) comprises an outer coating layer (20), tensile wires (10) and an anti-aging coating layer (21), the anti-wiredrawing wires (10) are arranged inside the outer coating layer (20), the number of the tensile wires (10) is at least six, the tensile wires (10) are arranged at equal intervals inside the outer coating layer (20), the anti-aging coating layer (21) is arranged on the outer wall of the outer coating layer (20), and the anti-aging coating layer (21) and the outer coating layer (20) are integrally coated.

6. The tensile high-flame-retardant cable according to claim 1, wherein five wire cores (2) are arranged, the five wire cores (2) are equidistantly arranged in the cable core (1), and the filling layer (3) is arranged at gaps of the five cable cores (1).

7. The tensile high-flame-retardant cable according to claim 1, wherein the wrapping layer (4) is spirally wound outside the cable core (1).