Tool convenient for drawing Brinell hardness point of steel rail welding area

Abstract

The utility model discloses a tool convenient for drawing a Brinell hardness point of a steel rail welding area, which relates to the technical field of welded steel rail detection and comprises a plate body, the width of the plate body is the same as that of a tread of a steel rail, the plate body is provided with a first direction line and a second direction line, and the first direction line and the second direction line are arranged in parallel. In the same length direction as the plate body, an even number of first positioning holes are formed in the first direction line, an odd number of second positioning holes are formed in the second direction line, and one second positioning hole in the middle of the second positioning holes is aligned with a welding line of a steel rail welding area; meanwhile, the two second positioning holes in the middle of each first positioning hole are uniformly formed in the two sides of the welding seam, the cost is low, the design is novel, the operation is simple, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding rail detection, in particular to a tool for facilitating the drawing of Brinell hardness points in the welding area of rails. Background Technique

[0002] According to the provisions of TB / T1632, the inspection rules for fixed and mobile flash welding of rails are specified, requiring the Brinell hardness to be measured and mapped at 27 positions. Using manual drawing and surveying requires a large amount of time and manpower, and the drawing accuracy is low, which is not conducive to the accuracy of the test. This part is applicable to the flash welding of rails with a weight of 50 kg / m to 75 kg / m.

[0003] This patent aims to solve the problems of the existing detection methods being time-consuming, laborious, low in drawing accuracy, and low in efficiency. This patent has a simple structure, low cost, novel design, and simple operation, greatly improving the work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a tool for facilitating the drawing of Brinell hardness points in the welding area of rails, so as to solve the problems existing in the above-mentioned prior art, with a simple structure, convenient operation, and effectively improving the work efficiency.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] The utility model provides a tool for facilitating the drawing of Brinell hardness points in the welding area of rails, including: a plate body, the width of the plate body is the same as the tread width of the rail, a first direction line and a second direction line are arranged on the plate body, the first direction line and the second direction line are arranged in parallel and in the same direction as the length direction of the plate body, an even number of first positioning holes are arranged on the first direction line, an odd number of second positioning holes are arranged on the second direction line, one of the second positioning holes in the middle of each of the second positioning holes is aligned with the weld line in the welding area of the rail, and at the same time, two second positioning holes in the middle of each of the first positioning holes are evenly arranged on both sides of the weld.

[0007] Preferably, the diameter of the first positioning hole is 1 mm.

[0008] Preferably, the distance between two adjacent first positioning holes is 15 mm.

[0009] Preferably, the number of the first positioning holes is 14.

[0010] Preferably, the diameter of the second positioning hole is 1 mm.

[0011] Preferably, the distance between adjacent second positioning holes is 15 mm.

[0012] Preferably, the number of the second positioning holes is 13.

[0013] Preferably, the distances between the first direction line and the second direction line and the center line of the plate body are both 7.5 mm.

[0014] The utility model achieves the following technical effects compared with the prior art:

[0015] The purpose of the utility model is to provide a tool for conveniently drawing Brinell hardness points in the welding area of a steel rail. When in use, align the plate body with both sides of the tread surface of the steel rail, and align one of the second positioning holes with the weld line in the welding area of the steel rail. Then, use a marker pen to mark on the corresponding first positioning hole and second positioning hole, and the Brinell hardness tester can be used to measure the hardness at the corresponding marked points. The structure is simple, the operation is convenient, and the working efficiency is effectively improved. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of a tool for conveniently drawing Brinell hardness points in the welding area of a steel rail provided by the present utility model;

[0018] In the figure: 1, plate body; 2, first direction line; 3, first positioning hole; 4, second direction line; 5, second positioning hole; 6, steel rail. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0020] The purpose of the present utility model is to provide a tool for conveniently drawing Brinell hardness points in the welding area of a steel rail to solve the problems existing in the above-mentioned prior art. The structure is simple, the operation is convenient, and the working efficiency is effectively improved.

[0021] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0022] The present utility model provides a tool for facilitating the drawing of Brinell hardness points in the welding area of a steel rail, as Figure 1 shown, including: a plate body 1, the width of the plate body 1 being the same as the tread width of the steel rail 6. A first direction line 2 and a second direction line 4 are provided on the plate body 1. The first direction line 2 and the second direction line 4 are arranged in parallel and in the same direction as the length direction of the plate body 1. An even number of first positioning holes 3 are provided on the first direction line 2, and an odd number of second positioning holes 5 are provided on the second direction line 4. One of the second positioning holes 5 in the middle of each second positioning hole 5 is aligned with the weld line in the welding area of the steel rail 6. At the same time, two second positioning holes 5 in the middle of each first positioning hole 3 are evenly arranged on both sides of the weld. When in use, align the two sides of the plate body 1 with the two sides of the tread of the steel rail 6, and align one of the second positioning holes 5 with the weld line in the welding area of the steel rail 6. Use a marker pen to mark at the corresponding first positioning holes 3 and second positioning holes 5, and then a Brinell hardness tester can be used to measure the hardness at the corresponding marked points. The structure is simple, the operation is convenient, and the work efficiency is effectively improved.

[0023] In a preferred embodiment, the diameter of the first positioning hole 3 is 1 mm, which reduces the error of marking with a marker pen in the first positioning hole 3.

[0024] In a preferred embodiment, the distance between two adjacent first positioning holes 3 is 15 mm.

[0025] In a preferred embodiment, the number of the first positioning holes 3 is 14.

[0026] In a preferred embodiment, the diameter of the second positioning hole 5 is 1 mm.

[0027] In a preferred embodiment, the distance between two adjacent second positioning holes 5 is 15 mm.

[0028] In a preferred embodiment, the number of the second positioning holes 5 is 13.

[0029] In a preferred embodiment, the distances from both the first direction line 2 and the second direction line 4 to the center line of the plate body 1 are 7.5 mm.

[0030] In a preferred embodiment, the bottom surface of the plate body 1 is adapted to the shape of the tread of the steel rail 6.

[0031] Working process: First, etch the test surface of the tread of the steel rail 6 with 6% nitric acid alcohol to make the weld on the test surface of the steel rail 6 visible to the naked eye. Then align the two sides of the plate body 1 with the two sides of the tread of the steel rail 6, and at the same time align the second positioning hole 5 in the middle of each second positioning hole 5 with the weld. Use a marker pen to mark at the corresponding holes of the fixed template, and then use a Brinell hardness tester to measure the hardness at the corresponding marked points.

[0032] In this utility model, specific examples are used to elaborate on the principle and implementation manner of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model. At the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the utility model.

Claims

1. A tool for facilitating the drawing of Brinell hardness points in the welding area of steel rails, characterized in that: Including: A plate body, the width of the plate body is the same as the tread width of the rail. A first direction line and a second direction line are provided on the plate body. The first direction line and the second direction line are arranged in parallel, in the same direction as the length direction of the plate body and symmetrically arranged about the center line of the plate body. An even number of first positioning holes are provided on the first direction line, and an odd number of second positioning holes are provided on the second direction line. One of the second positioning holes in the middle of each of the second positioning holes is aligned with the weld line of the rail welding area, and at the same time, two second positioning holes in the middle of each of the first positioning holes are evenly arranged on both sides of the weld.

2. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 1, wherein: The diameter of the first positioning hole is 1 mm.

3. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 2, wherein: The distance between two adjacent first positioning holes is 15 mm.

4. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 3, wherein: The number of the first positioning holes is 14.

5. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 4, characterized in that: The diameter of the second positioning hole is 1 mm.

6. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 5, wherein: The distance between adjacent second positioning holes is 15 mm.

7. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 6, characterized in that: The number of the second positioning holes is 13.

8. The tool for facilitating the drawing of Brinell hardness points in the rail welding area according to claim 6, wherein: The distances from both the first direction line and the second direction line to the center line of the plate body are 7.5 mm.

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