Integrated inspection tool for normal vector and abrasion of steel rail curve

Abstract

The utility model discloses a steel rail curve versine and abrasion integrated inspection tool, which comprises a measuring main body and a positioning seat integrally formed with the measuring main body, a sliding block is arranged on the measuring main body, a positioning hook is arranged at the bottom of the sliding block, and an auxiliary plate is arranged on one side, close to a fixed seat, of the top of the sliding block; the measuring main body is provided with a vertical grinding standard line, and the distance between the vertical grinding standard line and the rail head surface of a standard 60kg / m steel rail is 20mm; when the front end of the positioning hook is in contact with a rail head acting edge of a standard 60kg / m steel rail, a side grinding scale mark positioned on the measuring main body is arranged on the end surface, far away from the positioning seat, of the sliding block; the distance from the top of the auxiliary plate to the top surface of the rail head of the standard 60kg / m steel rail is greater than 12mm; the distance from the inner side of the positioning seat to the end face of the side, away from the positioning seat, of the measuring body is smaller than 153 mm. The inspection tool can measure the vertical abrasion, the side abrasion and the curve positive loss value of the steel rail at the same time, and has the advantages of being high in measurement efficiency, high in measurement precision, convenient to carry and not prone to deformation.

Description

Technical Field

[0001] This utility model belongs to the field of rail wear measurement technology, and in particular relates to an integrated inspection tool for rail curve versine and wear. Background Technology

[0002] Currently, most urban rail transit systems use 60kg / m steel rails. According to subway design specifications, track sections with long bridges require anti-derailment guardrails to ensure train operation safety. However, because the distance between the anti-derailment guardrail and the effective edge of the 60kg / m steel rail is only 80mm, and it is about 12mm higher than the top surface of the 60kg / m steel rail, the following problems cannot be solved:

[0003] (i) The versine of curves in elevated sections cannot be accurately checked.

[0004] Under the existing chord-like method, in sections with anti-derailment guards, personnel cannot check the versine data on the inner side of the upper rail of the curve. They must move to the corresponding position on the lower rail for measurement. Due to the change in curve radius, the measured data deviates from the design versine. Furthermore, due to the centrifugal force during train operation on curves, the vehicle wheel flanges run closer to the upper rail, meaning the data from the lower rail cannot accurately reflect the smoothness of the curve.

[0005] (ii) Rail wear in elevated sections cannot be accurately measured.

[0006] Existing rail wear inspection instruments are too large and cannot be placed in the designated position due to the width of the anti-derailment guard wheel flange groove. Therefore, the vertical and lateral wear of curved rails cannot be inspected using existing rail wear inspection instruments.

[0007] (iii) It consumes a lot of manpower and is inefficient.

[0008] Due to the influence of the above two measurement factors, coupled with the large number of devices carried, personnel first measure the curve and then turn back to measure the wear, which not only doubles the time wasted in checking the route, but also greatly reduces the efficiency of the inspection. Summary of the Invention

[0009] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an integrated inspection tool for rail curve versine and wear. By setting a positioning seat, it facilitates alignment with the rail to be measured. Strong magnets within the first and second rectangular grooves fix the rail in place, facilitating measurement. Using a vertical wear standard line and a side wear scale line set based on a standard 60kg / m rail, the vertical and side wear of the rail can be obtained simply by measuring the difference between the measurement and the standard vertical wear standard line and the side wear scale line, greatly improving measurement accuracy and efficiency. This integrated inspection tool is lightweight and portable, made of high-quality steel, and not easily deformed. It can be widely used for equipment inspection in elevated guardrail sections of urban rail transit lines nationwide.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0011] A rail curve versine and wear integrated inspection tool includes a measuring body 1 and a positioning seat 2 integrally formed with the measuring body 1. A slider 3 is provided on the measuring body 1, a positioning hook 4 is provided at the bottom of the slider 3, and an auxiliary plate 5 is provided on the top of the slider 3 near the positioning seat 2.

[0012] The measuring body 1 is provided with a vertical grinding standard line 7, and the distance from the vertical grinding standard line 7 to the top surface of the standard 60kg / m rail head is 20mm; when the front end of the positioning hook 4 contacts the working edge of the standard 60kg / m rail head, the slider 3 is provided with a side grinding scale line 8 on the measuring body 1 at the end face away from the positioning seat 2; the distance from the top of the auxiliary plate 5 to the top surface of the standard 60kg / m rail head is greater than 12mm; the distance from the inner side of the positioning seat 2 to the end face of the measuring body 1 away from the positioning seat 2 is less than 153mm.

[0013] A reflective limiting strip 6 is provided at the end of the measuring body 1 that is away from the positioning seat 2.

[0014] The positioning base 2 includes a connecting part 21 connected to the measuring body 1. The width of the connecting part 21 is the same as the width of the measuring body 1, and the connecting part 21 is perpendicularly connected to the positioning part 22.

[0015] The positioning part 22 has an L-shaped structure. The inner side of the positioning part 22 has a side contact surface for contacting the side of the non-functional lower jaw of the rail head and a bottom contact surface for contacting the bottom surface of the non-functional lower jaw of the rail head. A first rectangular groove 221 and a second rectangular groove 222 are respectively provided on the side contact surface and the bottom contact surface. A strong magnet block with a suitable shape is placed in both the first rectangular groove 221 and the second rectangular groove 222. The surface of the strong magnet block does not extend beyond the side contact surface and the bottom contact surface.

[0016] The outer corners of the positioning seat 2 are all rounded.

[0017] The integrated inspection tool for rail curve versine and wear is made of high-quality steel.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention features a positioning base for easy alignment with the rail to be measured. Strong magnets within the first and second rectangular grooves secure the rail, facilitating measurement. Compared to existing two-measurement tools, this integrated inspection tool simultaneously measures vertical wear, lateral wear, and curve deviation, significantly reducing labor and economic costs while improving measurement efficiency. Using a standard 60kg / m rail as the benchmark for vertical and lateral wear standards, the difference between the measured value and the standard vertical and lateral wear is sufficient to determine the rail's vertical and lateral wear, greatly enhancing measurement accuracy and efficiency. This integrated inspection tool is lightweight, portable, and made of high-quality steel, making it resistant to deformation and widely applicable for equipment inspection in elevated rail sections of urban rail transit lines nationwide. Attached Figure Description

[0020] Figure 1 A schematic diagram of the integrated inspection tool for rail curve versine and wear provided by this utility model.

[0021] In the figure: measuring body 1, positioning seat 2, connecting part 21, positioning part 22, first rectangular groove 221, second rectangular groove 222, slider 3, positioning hook 4, auxiliary plate 5, reflective limiting strip 6, vertical grinding scale line 7, side grinding scale line 8.

[0022] Figure 2 A diagram illustrating how the inspection tool provided by this utility model measures rail wear.

[0023] In the diagram: 9 rail head, 10 anti-derailment guard rail, 11 steel ruler, 12 side wear edge.

[0024] Figure 3 A diagram illustrating how the inspection tool provided by this utility model measures the versine of a rail curve.

[0025] In the diagram: Inspection tool 13, string 14. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0027] A rail curve versine and wear integrated inspection tool includes a measuring body 1 and a positioning seat 2 integrally formed with the measuring body 1. During measurement, the positioning seat 2 is fixedly connected to the lower jaw of the non-active side of the rail head. A reflective limiting strip 6 is provided at the end of the measuring body 1 away from the positioning seat 2. A slider 3 is provided on the measuring body 1, and a positioning hook 4 is provided at the bottom of the slider 3. An auxiliary plate 5 is provided on the top side of the slider 3 near the positioning seat 2. The positioning seat 2 includes a connecting part 21 connected to the measuring body 1. The width of the connecting part 21 is the same as the width of the measuring body 1, and the connecting part 21 is perpendicular to the positioning part 22. The positioning part 22 has an L-shaped structure. The inner side of the positioning part 22 has a side contact surface for contacting the side of the non-functional lower jaw of the rail head and a bottom contact surface for contacting the bottom surface of the non-functional lower jaw of the rail head. A first rectangular groove 221 and a second rectangular groove 222 are respectively provided on the side contact surface and the bottom contact surface. A strong magnet block with a suitable shape is placed in both the first rectangular groove 221 and the second rectangular groove 222. The surface of the strong magnet block does not extend beyond the side contact surface and the bottom contact surface. The outer corners of the positioning seat 2 are all rounded. The positioning seat 2 is rounded to facilitate the adaptation to the rail head.

[0028] The measuring body 1 is provided with a vertical grinding standard line 7, and the distance from the vertical grinding standard line 7 to the top surface of the standard 60kg / m rail head 9 is 20mm; when the bottom of the positioning hook 4 is located at halfway along the side of the standard 60kg / m rail head 9, the slider 3 is provided with a side grinding scale line 8 on the measuring body 1 near the end face of the reflective limit strip 6; the distance from the top of the auxiliary plate 5 to the top surface of the standard 60kg / m rail head 9 is greater than 12mm; the distance from the inner side of the positioning seat 2 to the end face of the measuring body 1 is less than 153mm.

[0029] The integrated inspection tool for rail curve versine and wear is made of high-quality steel.

[0030] In this embodiment, the overall dimensions of the integrated rail curve versine and wear inspection tool are 135mm*30mm*33mm (length, width, and height); the width of the standard 60kg / m rail head is 73mm, and the distance between the rail and the anti-derailment guard is 80mm. Therefore, when using the inspection tool of this utility model, it can be placed on the rail without being affected by the adjacent anti-derailment guard.

[0031] The working principle of this utility model is as follows:

[0032] This inspection tool is mainly used on 60kg / m rails in sections with anti-derailment guards. During inspection, first move the slider 3 to the reflective limit strip 6, then place the inspection tool on the rail to be inspected. The positioning seat 2 is located on the outside of the rail head and abuts against the lower jaw of the non-functional side of the rail head, so that the strong magnets in the first rectangular groove 221 and the second rectangular groove 222 attract the lower jaw of the non-functional side of the rail head. After it is firmly placed, use a steel ruler to vertically place on the top surface of the rail and measure the distance between the vertical wear standard line 7 and the top surface of the rail. The difference between this distance and 20mm is the vertical wear value of the rail. Slide the slider 3 towards the functional side of the rail head until the front end of the positioning hook 4 contacts the functional side of the rail head. Using a steel ruler placed parallel to the measuring body 1, measure the distance from the side wear scale line 8 to the end face of the slider 3 near the reflective limit strip 6. This distance is the side wear value of the rail. When measuring the versine of the rail curve, three inspection tools 13 are required. The three inspection tools 13 are placed at three measuring points on the rail with a spacing of 10m. Place the positioning blocks at both ends of the chord 14 on the top of the auxiliary plate 5, and then slide the slider 3 of the three inspection tools 13 toward the working edge of the rail head until the front end of the positioning hook 4 contacts the working edge of the rail head. At this time, use a steel ruler to measure the distance from the end face of the auxiliary plate 5 of the inspection tool located at the middle measuring point to the chord 14 near the reflective limit strip 6. This distance is the versine value at that measuring point.

[0033] The embodiments given above are preferred examples of implementing this utility model, and this utility model is not limited to the above embodiments. Any non-essential additions or substitutions made by those skilled in the art based on the technical features of the technical solution of this utility model shall fall within the protection scope of this utility model.

Claims

1. A tool for integrating rail curve versine and wear inspection, characterized in that: It includes a measuring body (1) and a positioning seat (2) integrally formed with the measuring body (1). A slider (3) is provided on the measuring body (1), a positioning hook (4) is provided at the bottom of the slider (3), and an auxiliary plate (5) is provided on the top of the slider (3) near the positioning seat (2). The measuring body (1) is provided with a vertical grinding standard line (7), and the distance from the vertical grinding standard line (7) to the top surface of the standard 60kg / m rail head is 20mm; when the front end of the positioning hook (4) contacts the working edge of the standard 60kg / m rail head, the slider (3) is provided with a side grinding scale line (8) on the measuring body (1) at the end face away from the positioning seat (2); the distance from the top of the auxiliary plate (5) to the top surface of the standard 60kg / m rail head is greater than 12mm; the distance from the inner side of the positioning seat (2) to the end face of the measuring body (1) away from the positioning seat (2) is less than 153mm.

2. The integrated inspection tool for rail curve versine and wear according to claim 1, characterized in that: A reflective limiting strip (6) is provided at the end of the measuring body (1) away from the positioning seat (2).

3. The integrated inspection tool for rail curve versine and wear according to claim 1, characterized in that: The positioning seat (2) includes a connecting part (21) connected to the measuring body (1). The width of the connecting part (21) is the same as the width of the measuring body (1), and the connecting part (21) is perpendicularly connected to the positioning part (22).

4. The integrated inspection tool for rail curve versine and wear according to claim 3, characterized in that: The positioning part (22) has an L-shaped structure. The inner side of the positioning part (22) has a side contact surface for contacting the side of the non-functional lower jaw of the rail head and a bottom contact surface for contacting the bottom surface of the non-functional lower jaw of the rail head. A first rectangular groove (221) and a second rectangular groove (222) are respectively provided on the side contact surface and the bottom contact surface. A strong magnet block with a suitable shape is placed in both the first rectangular groove (221) and the second rectangular groove (222). The surface of the strong magnet block does not extend beyond the side contact surface and the bottom contact surface.

5. The integrated inspection tool for rail curve versine and wear according to claim 3, characterized in that: The inner corners of the positioning seat (2) are all rounded.

6. The integrated inspection tool for rail curve versine and wear according to claim 5, characterized in that: The integrated inspection tool for rail curve versine and wear is made of high-quality steel.

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