CN219297855U

CN219297855U - Epoxy coating stranded wire inhaul cable

Info

Publication number: CN219297855U
Application number: CN202320628068.9U
Authority: CN
Inventors: 才勃; 庞震; 齐飞; 于维宽; 刘志猛
Original assignee: Tianjin Zhengtian Yibo Pre Stress Steel Strand Co ltd
Current assignee: Tianjin Zhengtian Yibo Pre Stress Steel Strand Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-07-04
Anticipated expiration: 2033-03-28

Abstract

The utility model discloses an epoxy coating stranded wire inhaul cable, which relates to the technical field of inhaul cables and comprises six first steel cables and six second steel cables, wherein the second steel cables are circumferentially distributed on the outer surface of the first steel cables and are stranded with the first steel cables, an inner pipe is arranged on the outer surface of the second steel cables, the inner pipe is sleeved outside the second steel cables, an epoxy resin layer is filled in a gap between the first steel cables and the second steel cables, the epoxy resin layer is contacted with the inner surface of the inner pipe, an outer pipe is sleeved outside the inner pipe, a polyurea coating is arranged between the outer pipe and the inner pipe, the polyurea coating is respectively in close contact with the outer surface of the inner pipe and the inner surface of the outer pipe, and an anti-corrosion layer is arranged on the outer surface of the outer pipe. The application can protect first cable and second cable through the epoxy resin layer, prevents that first cable and second cable from receiving oxidation corrosion, and rethread polyurea coating can further increase the anticorrosive effect of first cable and second cable, improves the result of use.

Description

Epoxy coating stranded wire inhaul cable

Technical Field

The utility model relates to the technical field of stranded wire inhaul cables, in particular to an epoxy coating stranded wire inhaul cable.

Background

The steel strand is used as a prestress rib and is widely applied to various prestress projects. The cable-stayed bridge cable can be used for cable-stayed bridge cables, external prestressed bundles, suspenders, tie rods and the like in terms of bridge steel strand stay cable application.

The cable-stayed bridge has the characteristics of large span, attractive appearance and the like, and the bridge system is widely used in bridge construction at home and abroad. The inhaul cable is used as a main stress part of a cable-stayed bridge and consists of dozens or even hundreds of high-strength steel stranded wires.

At present, the inhaul cable is generally directly exposed to the environment in use, and because of rivers and the like near the inhaul cable, the humidity in the environment is large, and steel strands in the inhaul cable are extremely easy to be corroded by oxidation of the external environment, so that the service life is influenced, and the use effect is poor.

Disclosure of Invention

The utility model provides an epoxy coating stranded wire inhaul cable, which solves the problems that the service life of the inhaul cable is too low, frequent replacement is needed and the use effect is poor due to the fact that the existing stranded wire inhaul cable is extremely easy to be oxidized and corroded by the external environment in the use process.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: an epoxy coating stranded wire inhaul cable comprises a first steel cable and six second steel cables, wherein the second steel cables are circumferentially distributed on the outer surface of the first steel cable and are stranded with the first steel cable;

the outer surface of the second steel rope is provided with an inner pipe, the inner pipe is sleeved outside the second steel rope, an epoxy resin layer is filled in a gap between the first steel rope and the second steel rope, the epoxy resin layer is contacted with the inner surface of the inner pipe, the outer pipe is sleeved outside the inner pipe, a polyurea coating is arranged between the outer pipe and the inner pipe, and the polyurea coating is respectively in close contact with the outer surface of the inner pipe and the inner surface of the outer pipe.

Optionally, a plurality of reinforcing ribs are equidistantly arranged in the gap between the inner tube and the outer tube, penetrate through the polyurea coating and are fixedly matched with the polyurea coating.

Optionally, the outer surfaces of the first steel cable and the second steel cable are both sprayed with a chromium plating layer.

Optionally, an anti-corrosion layer is arranged on the outer surface of the outer tube, made of polyurethane paint and sprayed on the outer surface of the outer tube;

the outer surface of the anti-corrosion layer is sleeved with a wear-resistant sleeve which is made of polyester fibers.

The utility model has the following beneficial effects: according to the epoxy coating stranded wire inhaul cable, the first steel cable and the second steel cable can be protected through the epoxy resin layer, the first steel cable and the second steel cable are prevented from being corroded by oxidation, the anti-corrosion effect of the first steel cable and the second steel cable can be further improved through the polyurea coating, and the using effect is improved.

Drawings

FIG. 1 is a schematic diagram of an epoxy coated stranded cable of the present utility model;

FIG. 2 is a structural cross-sectional view of an epoxy coated strand cable of the present utility model;

fig. 3 is a schematic view of the first and second cables of an epoxy coated strand cable of the present utility model.

In the figure: 1. a first wire rope; 2. a second wire rope; 3. an inner tube; 4. an epoxy resin layer; 5. an outer tube; 6. a polyurea coating; 7. reinforcing ribs; 8. a chromium plating layer; 9. an anti-corrosion layer; 10. wear-resistant sleeve.

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 to 3, the present utility model provides a technical solution: the epoxy coating stranded wire inhaul cable comprises a first steel cable 1 and a second steel cable 2, wherein the number of the second steel cables 2 is six, the second steel cables 2 are circumferentially distributed on the outer surface of the first steel cable 1 and are stranded with the first steel cable 1, and the second steel cables 2 are stranded on the first steel cable 1, so that the overall structural strength of the inhaul cable can be improved, and the use effect can be improved;

the outer surface of the second steel cable 2 is provided with an inner pipe 3, the inner pipe 3 is sleeved outside the second steel cable 2, an epoxy resin layer 4 is filled in a gap between the first steel cable 1 and the second steel cable 2, the epoxy resin layer 4 is in contact with the inner surface of the inner pipe 3, the first steel cable 1 and the second steel cable 2 can be isolated and protected under the action of the epoxy resin layer 4, the first steel cable 1 and the second steel cable 2 are prevented from being corroded by oxidation of the external environment, and the service lives of the first steel cable 1 and the second steel cable 2 are prolonged;

the outer tube 5 is sleeved outside the inner tube 3, the first steel cable 1 and the second steel cable 2 can be protected under the action of the inner tube 3 and the outer tube 5, and the first steel cable 1 and the second steel cable 2 are placed to be worn by collision of foreign objects;

a polyurea coating 6 is arranged between the outer tube 5 and the inner tube 3, the polyurea coating 6 is respectively in close contact with the outer surface of the inner tube 3 and the inner surface of the outer tube 5, and the first steel cable 1 and the second steel cable 2 can be further isolated and protected under the action of the polyurea coating 6, so that the first steel cable 1 and the second steel cable 2 are prevented from being corroded by oxidation in the external environment.

A plurality of reinforcing ribs 7 are arranged in the gap between the inner pipe 3 and the outer pipe 5 at equal intervals, the reinforcing ribs 7 penetrate through the polyurea coating 6 and are fixedly matched with the polyurea coating 6, the structural strength of the first steel cable 1 and the structural strength of the second steel cable 2 can be further increased under the action of the reinforcing ribs 7, and the using effect is improved.

The outer surfaces of the first steel cable 1 and the second steel cable 2 are both sprayed with a chromium plating layer 8, the surfaces of the first steel cable 1 and the second steel cable 2 can be isolated and protected under the action of the chromium plating layer 8, the antioxidant capacity of the first steel cable 1 and the second steel cable 2 is improved, and the use effect is improved.

The outer surface of the outer tube 5 is provided with an anti-corrosion layer 9, the anti-corrosion layer 9 is made of polyurethane paint, and the anti-corrosion layer 9 is sprayed on the outer surface of the outer tube 5 to prevent the outer tube 5 from being damaged by external oxidation;

the anti-corrosion layer 9 is sleeved with the wear-resistant sleeve 10, the wear-resistant sleeve 10 is made of polyester fiber, and the anti-corrosion layer 9 can be protected under the action of the wear-resistant sleeve 10, so that the anti-corrosion layer 9 is prevented from being damaged due to collision of foreign objects.

In summary, the epoxy coating stranded wire inhaul cable can improve the corrosion resistance of the first steel cable 1 and the second steel cable 2 under the action of the chromium plating layer 8 on the outer surfaces of the first steel cable 1 and the second steel cable 2, the first steel cable 1 and the second steel cable 2 can be separated from the external environment through the epoxy resin layer 4 arranged in the gap between the first steel cable 1 and the second steel cable 2, the oxidation resistance of the first steel cable 1 and the second steel cable 2 is further improved, and finally the first steel cable 1 and the second steel cable 2 can be subjected to corrosion protection through the polyurea coating 6 between the inner pipe 3 and the outer pipe 5, so that the service lives of the first steel cable 1 and the second steel cable 2 can be prolonged, and the use effect is improved.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

1. An epoxy coating stranded wire inhaul cable which is characterized in that: the device comprises a first steel rope (1) and six second steel ropes (2), wherein the second steel ropes (2) are circumferentially distributed on the outer surface of the first steel rope (1) and are stranded with the first steel rope (1);

the surface of second cable wire (2) is equipped with inner tube (3), and inner tube (3) cover is outside second cable wire (2), and clearance packing between first cable wire (1) and second cable wire (2) has epoxy layer (4), and epoxy layer (4) contact with inner tube (3) internal surface, and inner tube (3) outside cover has outer tube (5), is equipped with polyurea coating (6) between outer tube (5) and inner tube (3), polyurea coating (6) respectively with inner tube (3) surface and outer tube (5) internal surface in close contact together.

2. The epoxy coated strand cable of claim 1, wherein: a plurality of reinforcing ribs (7) are arranged in the gap between the inner tube (3) and the outer tube (5) at equal intervals, and the reinforcing ribs (7) penetrate through the polyurea coating (6) and are fixedly matched with the polyurea coating (6).

3. The epoxy coated strand cable of claim 1, wherein: the outer surfaces of the first steel cable (1) and the second steel cable (2) are both sprayed with a chromium plating layer (8).

4. The epoxy coated strand cable of claim 1, wherein: an anti-corrosion layer (9) is arranged on the outer surface of the outer tube (5), and the anti-corrosion layer (9) is made of polyurethane paint and is sprayed on the outer surface of the outer tube (5);

the outer surface of the anti-corrosion layer (9) is sleeved with a wear-resistant sleeve (10), and the wear-resistant sleeve (10) is made of polyester fibers.