CN212967229U

CN212967229U - Anti-pulling power cable

Info

Publication number: CN212967229U
Application number: CN202020616803.0U
Authority: CN
Inventors: 李万全; 李朋达; 李佩龙; 张高磊; 李帅杰
Original assignee: Henan Xunda Cable Co ltd
Current assignee: Henan Xunda Cable Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-04-13
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a tensile power cable, which comprises a main tensile core, a plurality of groups of power supply cables and control cables are spirally wound outside the main tensile core, an insulating sleeve is wrapped outside the power supply cables, a shielding layer is wrapped outside the control cables, an inner protective layer is wrapped outside the power supply cables and the control cables together, an armor layer is arranged outside the inner protective layer, the armor layer comprises spirally wound armor strips, through holes are arranged along an axis array by the armor strips, tensile cores are arranged in the through holes in a penetrating way, a metal mesh grid is arranged on the inner wall of the armor layer, the tensile cores of the seam parts of the armor strips are fixedly connected with the metal mesh grid at the corresponding positions, the tensile power cable improves the axial tensile capacity of the central position of the cable by increasing the main tensile core, and the tensile cores are integrated in the armor layer to improve the tensile capacity of the surface layer of the cable, the internal and external tensile drag capabilities of the cable are consistent, the separation of the internal layer and the external layer is avoided, and the transmission safety of the cable is ensured.

Description

Anti-pulling power cable

Technical Field

The utility model relates to the technical field of cables, specifically be a power cable is dragged to tensile.

Background

A cable is a single component formed by two or more wires bonded, twisted, or braided together to connect two devices to transmit electrical signals. In practical use, like the cable of assembly in hoisting equipment, large-scale machinery, can often bear great pulling force, easily cause the inside fracture of cable, or the sinle silk is elongated, and the sinle silk cross-section that causes reduces to cause resistance to increase, make the cable obstructed at power transmission process, or generate heat seriously, influence the normal use of cable.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome current defect, provide a power cable is dragged in tensile, through increasing main tensile core, promote the axial anti ability of dragging that cable center put, and at the integrated tensile sinle silk in the armor, increase the tensile ability of dragging on cable top layer, make the cable inside and outside tensile drag the ability unanimous, avoid the ectonexine separation, guarantee cable transmission safety, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power cable is dragged to tensile, includes main tensile core, the outside spiral winding multiunit power supply cable of main tensile core and control cable, the outside parcel insulating cover of power supply cable, the outside parcel shielding layer of control cable, the inoxidizing coating in power supply cable and the outside common parcel of control cable, the outside armor that sets up of interior inoxidizing coating, the armor includes spiral winding's armor strip, the armor strip arranges the through-hole along the axis array, run through in the through-hole and set up tensile sinle silk, the inner wall of armor sets up the metal mesh grid, the tensile sinle silk of armor seam part and the metal mesh grid fixed connection who corresponds the position, the outside parcel of armor inoxidizing coating.

As a preferred technical scheme of the utility model, the main tensile core is a steel wire rope formed by twisting a plurality of strands of thin steel wires, and an insulating sheath is wrapped outside the main tensile core;

the flexibility of the main tensile core is improved through the stranding of the thin steel wires.

As a preferred technical solution of the present invention, the power supply cable includes an auxiliary tensile core at an axial position, the external portion of the auxiliary tensile core is spirally wound with a plurality of groups of power supply cores, the power supply cores are formed by twisting a plurality of thin wires, and an insulating sheath is wrapped around the external portion of each power supply core, and the insulating sheath is wrapped around the external portions of the auxiliary tensile core and the power supply core;

through set up supplementary tensile core in power supply cable inside, drag the ability to the tensile of power supply cable alone and promote, avoid the power supply cable to increase by dragging the back resistance, the problem of generating heat when avoiding high-power transmission.

As a preferred technical solution of the present invention, the power supply cable and the control cable are arranged in a crossed manner, the control cable is formed by twisting a plurality of groups of thin wires, and the outside of the control cable is wrapped with an insulating sheath, and the shielding layer is wrapped outside the insulating sheath of the control cable;

an independent shielding layer is arranged outside the control cable, so that the anti-interference capability of the control cable is improved.

As a preferred technical scheme of the utility model, the gap inside the inner protective layer is filled with the mixture of talcum powder and lubricating oil;

the inner part has better mobility, thereby ensuring the flexibility of the cable.

Compared with the prior art, the beneficial effects of the utility model are that: this power cable is dragged in tensile through increasing main tensile core, promotes the axial anti ability of dragging that cable center put, and at the integrated tensile sinle silk in the armor, increases the tensile ability of dragging on cable top layer, makes the cable inside and outside tensile drag the ability unanimous, avoids the ectonexine to separate, guarantees cable transmission safety, simultaneously through setting up the armor, promotes the radial anti extrusion ability of cable.

Drawings

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

fig. 2 is a schematic diagram of the structure of the armor layer of the present invention.

In the figure: 1 main tensile core, 2 power supply cables, 201 auxiliary tensile core, 202 power supply cable cores, 203 insulating sleeves, 3 control cables, 301 shielding layers, 4 inner protective layers, 5 armor layers, 501 tensile cable cores, 502 metal wire woven meshes and 6 outer protective layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a tensile power cable comprises a main tensile core 1, a plurality of groups of power supply cables 2 and control cables 3 are spirally wound outside the main tensile core 1, an insulating sleeve 203 is wrapped outside the power supply cables 2, a shielding layer 301 is wrapped outside the control cables 3, the shielding layer 301 adopts a fine metal wire mesh grid, the electromagnetic shielding performance is good, the anti-interference capability of the control cables 3 is improved, an inner protective layer 4 is commonly wrapped outside the power supply cables 2 and the control cables 3, an armor layer 5 is arranged outside the inner protective layer 4, the armor layer 5 comprises spirally wound armor strips, through holes are arranged along an axis array in the armor strips, tensile cores 501 penetrate through the through holes, the tensile cores 501 are woven by aramid fibers in bundles, the tensile cores have good anti-distortion effect, a metal mesh grid 502 is arranged on the inner wall of the armor layer 5, and the tensile cores 501 at the seam parts of the armor strips are fixedly connected with the metal mesh grid 502 at the corresponding positions, an outer protective layer 6 is wrapped outside the armor layer 5, and the outer protective layer 6 adopts one of a thermoplastic elastomer protective layer of PUR, PVC, TPE and TPV, so that the durability of the cable is improved.

The shielding layer 301 is made of a woven mesh of fine metal wires,

the main tensile core 1 is a steel wire rope formed by stranding a plurality of strands of thin steel wires, and an insulating sheath is wrapped outside the main tensile core 1;

the flexibility of the main tensile core 1 is improved by the stranding of the thin steel wires.

The power supply cable 2 comprises an auxiliary tensile core 201 positioned at an axial line position, a plurality of groups of power supply wire cores 202 are spirally wound outside the auxiliary tensile core 201, the power supply wire cores 202 are formed by twisting a plurality of strands of thin wires, an insulating sheath is wrapped outside each strand of power supply wire core 202, and an insulating sleeve 203 is wrapped outside the auxiliary tensile core 201 and the power supply wire cores 202;

through set up supplementary tensile core 201 in power supply cable 2 is inside, drag the ability to promote power supply cable 2's tensile alone, avoid power supply cable 2 to be dragged the increase of back resistance, the problem of generating heat when avoiding high-power transmission.

The power supply cable 2 and the control cable 3 are arranged in a crossed mode, the control cable 3 is formed by twisting a plurality of groups of thin conducting wires, an insulating skin wraps the outside of the control cable 3, and the shielding layer 301 wraps the outside of the insulating skin of the control cable 3;

a separate shielding layer 301 is arranged outside the control cable 3, so that the anti-interference capability of the control cable 3 is improved.

The gap inside the inner protective layer 4 is filled with the mixture of talcum powder and lubricating oil;

When in use: main tensile core 1 and tensile sinle silk 501 bearing simultaneously, make the cable axial tension disperse, avoid concentrating the local deformation that the atress caused, and supply cable 2 adopts spiral winding, and when axial tension was too big, the helicity was drawn the grow, makes whole length increase slightly, nevertheless can not cause inside supply sinle silk 202 to be drawn the grow, and the sectional area keeps unchangeable, can not cause the transmission resistance grow, effectively guarantees transmission safety.

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

Claims

1. A pull-resistant power cable comprising a primary pull-resistant core (1), characterized in that: the cable comprises a main tensile core (1), a plurality of groups of power supply cables (2) and control cables (3) are spirally wound outside the main tensile core (1), an insulating sleeve (203) is wrapped outside the power supply cables (2), a shielding layer (301) is wrapped outside the control cables (3), an inner protective layer (4) is wrapped outside the power supply cables (2) and the control cables (3) together, an armor layer (5) is arranged outside the inner protective layer (4), the armor layer (5) comprises spirally wound armor strips, through holes are formed in the armor strips along an axis array, tensile cores (501) penetrate through the through holes, a metal woven mesh (502) is arranged on the inner wall of the armor layer (5), the tensile cores (501) of the gap parts of the armor strips are fixedly connected with the metal woven mesh (502) of corresponding positions, and an outer protective layer (6) is wrapped outside the armor layer (5).

2. The pull-resistant power cable of claim 1, wherein: the main tensile core (1) is a steel wire rope formed by stranding a plurality of strands of thin steel wires, and an insulating sheath wraps the outer portion of the main tensile core (1).

3. The pull-resistant power cable of claim 1, wherein: the power supply cable (2) comprises an auxiliary tensile core (201) located at the axis position, the outside of the auxiliary tensile core (201) is spirally wound with a plurality of groups of power supply wire cores (202), the power supply wire cores (202) are formed by stranding a plurality of strands of thin wires, an insulating sheath wraps the outside of each power supply wire core (202), and an insulating sleeve (203) wraps the outside of the auxiliary tensile core (201) and the power supply wire cores (202).

4. The pull-resistant power cable of claim 1, wherein: the power supply cable (2) and the control cable (3) are arranged in a crossed mode, the control cable (3) is formed by stranding a plurality of groups of thin conductors, an insulating skin wraps the outside of the control cable (3), and the shielding layer (301) wraps the outside of the insulating skin of the control cable (3).