High-strength concrete sleeper reinforcement hot-rolled wire rod

Abstract

The utility model relates to the technical field of concrete sleeper reinforcing materials, and discloses a high-strength concrete sleeper reinforcing bar hot-rolled wire rod which comprises a high-carbon steel base layer, the outer wall of the high-carbon steel base layer is fixedly connected with a grain refining layer, and the front side of the outer wall of the grain refining layer is fixedly connected with a fixing ring. A plurality of high-strength protection plates are fixedly connected to the outer wall of the fixing ring, a zinc-aluminum alloy composite coating is fixedly connected to the outer wall of each high-strength protection plate, a chromium plating layer is fixedly connected to the outer wall of each zinc-aluminum alloy composite coating, and mounting mechanisms are arranged on the front side and the rear side of the high-carbon steel base layer. According to the concrete sleeper, the grain refinement layer is formed on the surface of the high-carbon steel base layer, so that the toughness of the material is improved, the anti-fatigue effect of the concrete sleeper is improved under the connection of a plurality of high-strength protection plates, the anti-fatigue performance of the concrete sleeper is ensured, and the stability and the safety of the concrete sleeper in a high-speed heavy haul railway environment are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete sleeper reinforcing material technical field especially relates to a high strength concrete sleeper reinforcing hot rolled wire rod. BACKGROUND

[0002] Concrete sleeper is a kind of support component for railway track laying, made of concrete material, usually in strip shape, provided with fastener and groove structure for fixing rail, its main function is to evenly distribute the train load borne by rail to the foundation, and keep the correct position and gauge of rail, to ensure the safety and smooth running of railway train.

[0003] Through the retrieval, China patent publication No. CN202644312U discloses a reinforced concrete sleeper, including sleeper body, its characterized in that: the sleeper body center both sides inside are equipped with U-shaped reserved hole, the bottom of U-shaped reserved hole is buried in sleeper body, the top of U-shaped reserved hole is flush with sleeper body upper surface, the sleeper body inside is also equipped with reinforcing frame, the reinforcing frame includes transverse reinforcement and longitudinal reinforcement, the contact of transverse reinforcement and longitudinal reinforcement with U-shaped reserved hole is fixed by welding. The utility model has the advantages of good elasticity, not easy to deform, convenient to disassemble and install, reduces production cost, effectively increases the geometric position keeping capacity of sleeper, reduces the amount of reinforcing steel and improves the workability, meets the requirements of sleeper bending and torsion resistance, and is conducive to popularization and application. However, in actual use, the sleeper increases the U-shaped reserved hole to improve the geometric position keeping capacity of sleeper, but the opening makes the fatigue resistance of sleeper decrease, thereby reducing the service life of concrete sleeper. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a high strength concrete sleeper reinforcing hot rolled wire rod, aiming at improving the fatigue resistance of sleeper in prior art, thereby reducing the service life of concrete sleeper.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a high strength concrete sleeper reinforcing hot rolled wire rod, including high carbon steel base layer, the outer wall of high carbon steel base layer is fixedly connected with grain refinement layer, the outer wall of grain refinement layer is fixedly connected with fixed ring on front side, the outer wall of fixed ring is fixedly connected with multiple high strength protection plates, the outer wall of high strength protection plate is fixedly connected with zinc-aluminum alloy composite coating, the outer wall of zinc-aluminum alloy composite coating is fixedly connected with chromium plating layer, and the front and back sides of high carbon steel base layer are provided with mounting mechanism.

[0006] Through the technical scheme, the grain refinement layer improves the toughness of the material, the fatigue resistance is improved under the connection of multiple high-strength protection plates, and the corrosion resistance of the wire rod is improved under the zinc-aluminum alloy composite coating, thereby ensuring the stability of the wire rod in the high-speed heavy-load railway environment.

[0007] Further description of the above technical scheme:

[0008] The mounting mechanism comprises two protective shells, the adjacent sides of the two protective shells are fixedly connected to the front and rear sides of the high-carbon steel base layer, the protective shells are fixedly connected with guide blocks on the upper and lower sides, the inner walls of the protective shells are fixedly connected with rubber rings, the front and rear sides of the high-carbon steel base layer are provided with threaded grooves, and the inner walls of the rubber rings are provided with arc surfaces.

[0009] Through the technical scheme, the connection part of the wire rod during installation of other parts can be protected under the connection of the protective shell, and the installation of the parts is effectively guided under the guidance of the guide block, so that the protection effect of the connected parts is improved and the installation efficiency is improved.

[0010] Further description of the above technical scheme:

[0011] The mounting mechanism further comprises two inclined surfaces, and the two inclined surfaces are respectively arranged on the sides away from the corresponding protective shells.

[0012] Through the technical scheme, the inclined surface improves the compression resistance of the outer wall of the protective shell.

[0013] Further description of the above technical scheme:

[0014] One side of the multiple high-strength protection plates is provided with multiple holes, and the multiple holes are arranged horizontally.

[0015] Through the technical scheme, the multiple holes improve the toughness of the high-strength protection plate and increase the service life thereof.

[0016] Further description of the above technical scheme:

[0017] The outer wall of the grain refinement layer is fixedly connected with a connecting ring, and the outer wall of the connecting ring is fixedly connected to the inner wall of the high-strength protection plate.

[0018] Through the technical scheme, the connection improves the connection effect of the multiple protection plates.

[0019] Further description of the above technical scheme:

[0020] The outer wall of the chromium plating layer is fixedly connected with a wear-resistant layer, and the multiple high-strength protection plates are arranged in an equidistant annular manner.

[0021] Through the technical scheme, the wear-resistant layer further improves the wear resistance of the wire rod.

[0022] Further description of the technical scheme is as follows:

[0023] The outer wall of the wear-resistant layer is provided with a plurality of grooves equidistantly, and the plurality of grooves are designed in an arc shape.

[0024] Through the technical scheme, the plurality of grooves increase the adhesion of the wire rod to concrete and improve the stability of the overall structure.

[0025] Further description of the technical scheme is as follows:

[0026] The top wall of the plurality of high-strength protective plates is provided with two bevels, and the plurality of bevels are designed in a symmetrical manner.

[0027] Through the technical scheme, the compression resistance of the high-strength protective plate is improved, and the compression force is dispersed.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, after high-temperature heat treatment of the high-carbon steel base layer, the surface grain is refined, thereby forming a grain refinement layer and improving the toughness of the material. Under the connection of the plurality of high-strength protective plates, the fatigue resistance is improved, and under the coating of the zinc-aluminum alloy composite coating, the corrosion resistance of the wire rod is improved, the fatigue resistance of the concrete sleeper is ensured, and the stability and safety in the high-speed heavy-load railway environment are ensured.

[0030] 2. In the utility model, the connection part can be protected by the protective shell when the wire rod is installed and fixed with other parts, and the parts are guided under the guidance of the guide block. Under the wrapping of the rubber ring, the rubber ring can buffer the pressure when the part is subjected to external pressure, thereby improving the protection effect of the connected parts and improving the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of a high-strength concrete sleeper reinforcing hot-rolled wire rod is provided for the utility model;

[0032] Figure 2 A front view of a high-strength concrete sleeper reinforcing hot-rolled wire rod is provided for the utility model;

[0033] Figure 3 A sectional view of a high-carbon steel base layer of a high-strength concrete sleeper reinforcing hot-rolled wire rod is provided for the utility model;

[0034] Figure 4 A high-strength protection plate structure diagram of high-strength concrete sleeper reinforcing hot-rolled wire rod is provided for the utility model;

[0035] Figure 5 A high-strength protection plate structure diagram of high-strength concrete sleeper reinforcing hot-rolled wire rod is provided for the utility model;

[0036] Legend:

[0037] 1, high carbon steel base layer; 2, mounting mechanism; 201, protective shell; 202, guide block; 203, inclined surface; 204, rubber ring; 205, threaded groove; 206, camber; 3, grain refinement layer; 4, fixed ring; 5, high-strength protection plate; 6, hole; 7, connecting ring; 8, zinc-aluminum alloy composite coating; 9, chromium plating layer; 10, wear-resistant layer; 11, groove. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] Referring to Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: a high-strength concrete sleeper reinforcing hot-rolled wire rod, including high carbon steel base layer 1, the outer wall of high carbon steel base layer 1 is fixedly connected with grain refinement layer 3, after high-temperature hot working to high carbon steel base layer 1, the surface can form grain refinement layer 3, thereby improve the toughness of structure, the outer wall front side of grain refinement layer 3 is fixedly connected with fixed ring 4, the outer wall of fixed ring 4 is fixedly connected with multiple high-strength protection plates 5, through multiple high-strength protection plates 5 make the fatigue resistance of wire rod increase, and then improve the strength of wire rod, the outer wall of high-strength protection plate 5 is fixedly connected with zinc-aluminum alloy composite coating 8, the outer wall of zinc-aluminum alloy composite coating 8 is fixedly connected with chromium plating layer 9, under the coating of zinc-aluminum alloy composite coating 8 and chromium plating layer 9, it can improve the wear resistance and corrosion resistance of wire rod, and the front and back sides of high carbon steel base layer 1 are provided with mounting mechanism 2;

[0040] Specifically, after the high-carbon steel base layer 1 is subjected to high-temperature heat treatment, the surface grains of the hot-rolled wire rod are refined after cooling to room temperature by controlling the temperature and time. The grain refinement process forms a grain refinement layer 3. The existence of this layer improves the toughness of the material. In the close connection of multiple high-strength protective plates 5 and the fixing ring 4, the high-strength protective plates 5 are combined into a ring-shaped protective grid structure, which not only enhances the yield strength of the wire rod but also improves its tensile strength, thereby further improving the fatigue resistance. By coating the surface of the wire rod with a zinc-aluminum alloy composite coating 8 and a chromium plating layer 9, the corrosion resistance of the wire rod is improved, achieving the purpose of improving the fatigue resistance of the concrete sleeper, ensuring that the wire rod can meet the required mechanical performance requirements, and the wire rod has higher stability and safety in high-speed heavy-haul railway environments.

[0041] With reference to Figure 1 , Figure 2 and Figure 5 , the mounting mechanism 2 includes two protective shells 201, the adjacent sides of the two protective shells 201 are fixedly connected to the front and rear sides of the high-carbon steel base layer 1, and the protective shells 201 can protect the connecting parts and the wire rod on one side. The upper and lower sides of the protective shell 201 are fixedly connected with guide blocks 202, which can guide the connected parts. The inner wall of the protective shell 201 is fixedly connected with a rubber ring 204, and the front and rear sides of the high-carbon steel base layer 1 are provided with threaded grooves 205. The rubber ring 204 improves the buffering effect of external pressure. The inner wall of the rubber ring 204 is provided with an arc surface 206, which can facilitate the entry of the connected parts into the threaded grooves 205, improving the installation efficiency.

[0042] Specifically, under the fixation of the protective shell 201, when the wire rod needs to be installed and other parts are fixed, the connecting part of the wire rod can be protected by the protective shell 201. During the rotation and installation of the threaded grooves 205, the guide blocks 202 can effectively guide the rotation of the installed parts, thereby improving the installation efficiency. Under the wrapping of the rubber ring 204, the installation part of the part can be additionally protected, reducing the impact of external pressure on the part. The rubber ring 204 can absorb and slow down the pressure, thereby further improving the protection effect of the connected parts. Not only does it improve the installation efficiency, but it also shortens the installation time.

[0043] With reference to Figure 1 , Figure 4 and Figure 5, the mounting mechanism 2 further comprises two inclined surfaces 203 respectively formed on the opposite sides of the corresponding protective shell 201; one side of the plurality of high-strength protective plates 5 is provided with a plurality of holes 6 which are horizontally arranged; the outer wall of the rear side of the grain refinement layer 3 is fixedly connected with a connecting ring 7, and the outer wall of the connecting ring 7 is fixedly connected to the inner wall of the rear side of the high-strength protective plate 5;

[0044] Specifically, the inclined surfaces 203 improve the compression resistance of the outer wall of the protective shell 201, the plurality of holes 6 improve the toughness of the high-strength protective plate 5, the connecting ring 7 improves the connection effect of the plurality of high-strength protective plates 5.

[0045] Referring to Figure 2 , Figure 3 and Figure 4 , the outer wall of the chromium plating layer 9 is fixedly connected with a wear-resistant layer 10, and the plurality of high-strength protective plates 5 are arranged in an equidistant annular arrangement; the outer wall of the wear-resistant layer 10 is provided with a plurality of grooves 11 which are equidistantly formed and designed in an arc shape; the top wall of the plurality of high-strength protective plates 5 is provided with two inclined edges which are symmetrically designed;

[0046] Specifically, the wear-resistant layer 10 further improves the wear resistance of the wire rod, the plurality of grooves 11 increase the adhesion between the wire rod and the concrete, improve the stability of the overall structure, and the top wall of the plurality of high-strength protective plates 5 provided with two inclined edges improves the compression resistance of the high-strength protective plate 5 and disperses the pressure received.

[0047] Working principle: after the high-carbon steel base layer 1 is subjected to high-temperature heat treatment and cooled to room temperature, the surface of the hot-rolled wire rod is refined, thereby forming a grain refinement layer 3, which improves the toughness of the material. The connection of the plurality of high-strength protective plates 5 with the fixing ring 4 forms an annular protective grid, which further improves the yield strength and tensile strength of the wire rod, thereby improving the fatigue resistance. The coating of the zinc-aluminum alloy composite coating 8 and the chromium plating layer 9 improves the corrosion resistance of the wire rod, achieves the purpose of improving the fatigue resistance of the concrete sleeper, and enables the wire rod to obtain the required mechanical properties, ensuring its stability and safety in a high-speed heavy-haul railway environment. Under the fixation of the protective shell 201, the connection of the wire rod can be protected by the protective shell 201 when installing and fixing other parts, and under the guidance of the guide block 202 when rotating and installing the threaded groove 205, the installed parts can be guided and rotated, thereby improving the installation efficiency. Under the wrapping of the installation part of the rubber ring 204, the external pressure received by the rubber ring 204 is reduced, the rubber ring 204 can absorb and alleviate the pressure, thereby improving the protection effect of the connected parts and improving the installation efficiency and shortening the installation time.

[0048] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high strength concrete sleeper reinforcing hot rolled wire rod comprising a high carbon steel base layer (1) characterised in that: The outer wall of the high-carbon steel base layer (1) is fixedly connected with a grain refinement layer (3), the outer wall of the front side of the grain refinement layer (3) is fixedly connected with a fixed ring (4), the outer wall of the fixed ring (4) is fixedly connected with a plurality of high-strength protection plates (5), the outer wall of the high-strength protection plate (5) is fixedly connected with a zinc-aluminum alloy composite coating (8), the outer wall of the zinc-aluminum alloy composite coating (8) is fixedly connected with a chromium plating layer (9), and the front and rear sides of the high-carbon steel base layer (1) are provided with mounting mechanisms (2).

2. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 1, wherein: The mounting mechanism (2) comprises two protection shells (201), the adjacent sides of the two protection shells (201) are fixedly connected to the front and rear sides of the high-carbon steel base layer (1), the protection shell (201) is fixedly connected with a guide block (202) on the upper and lower sides, the inner wall of the protection shell (201) is fixedly connected with a rubber ring (204), the front and rear sides of the high-carbon steel base layer (1) are provided with threaded grooves (205), and the inner wall of the rubber ring (204) is provided with a camber (206).

3. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 2, wherein: The mounting mechanism (2) further comprises two inclined surfaces (203), and the two inclined surfaces (203) are respectively arranged on the sides away from each other of the corresponding protection shell (201).

4. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 1, wherein: One side of the plurality of high-strength protection plates (5) is provided with a plurality of holes (6), and the plurality of holes (6) are arranged in a horizontal manner.

5. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 1, wherein: The outer wall of the rear side of the grain refinement layer (3) is fixedly connected with a connecting ring (7), and the outer wall of the connecting ring (7) is fixedly connected to the inner wall of the rear side of the high-strength protection plate (5).

6. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 1, wherein: The outer wall of the chromium plating layer (9) is fixedly connected with a wear-resistant layer (10), and the plurality of high-strength protection plates (5) are arranged in an equidistant annular manner.

7. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 6, wherein: The outer wall of the wear-resistant layer (10) is provided with a plurality of grooves (11) arranged at equal intervals, and the plurality of grooves (11) are designed in an arc shape.

8. A high strength concrete sleeper reinforcing hot rolled wire rod as claimed in claim 1, wherein: The top wall of the plurality of high-strength protection plates (5) is provided with two inclined edges, and the plurality of inclined edges are designed in a symmetrical manner.

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