Brake disc abrasion measuring scale

Abstract

The utility model discloses a brake disc abrasion measuring scale, and belongs to the technical field of brake disc detection tools. The caliper comprises a caliper body, one side of the caliper body can be lapped on the inner wall and the outer wall of the brake disc, and a detection area is formed in the caliper body; the eccentric wear measuring rod is inserted into the ruler body, the tail end of the eccentric wear measuring rod can be arranged in the detection area, and a gradienter is installed on the eccentric wear measuring rod; the magnetic force detection plate has magnetism and is arranged in the detection area; the magnetic force detection plate is fixedly connected with the tail end of the eccentric wear measuring rod; wherein the inner wall of the ruler body is provided with a slide way which is used for being in sliding connection with the magnetic force detection plate, so that the magnetic force detection plate can be conveniently adsorbed on the abrasion surface of the brake disc, and the brake disc abrasion detection ruler has the advantages of being simple in structure, convenient to operate and small in measurement error.

Description

Technical Field

[0001] The utility model relates to the technical field of brake disc detection tools, in particular to a brake disc wear measuring ruler. Background Art

[0002] The brake system is an important part of the safety performance of rail trains. The brake disc is one of the core components of the brake system. Its wear directly affects the braking performance and safety of the train. Therefore, timely and accurate detection of the wear of the brake disc is of great significance to ensure the safe operation of the train.

[0003] In the past, when testing the wear of brake discs, it was necessary to use measuring tools, squares, depth gauges and feeler gauges to visually find the thinnest part of the brake disc during disassembly and maintenance, and then measure the remaining friction thickness of the brake disc and the oblique wear thickness of the friction ring surface of the brake disc. This detection method and means have the following defects: First, the wear and eccentric wear of the brake disc cannot be detected in real time, and it is necessary to use a variety of measuring tools for detection after the train bogie is disassembled. Second, the measurement area is limited, and it cannot be guaranteed that the thinnest part of the brake disc found visually is the weakest point actually measured. Third, using multiple measuring tools for cross-measurement cannot effectively measure the lowest point of the brake disc, and there are large errors. There are problems such as cumbersome operation, low efficiency, long time, and difficult to ensure product quality. Fourth, the measurement results are not intuitive, and the operator needs to convert the results a lot, and there are cases where calculation errors lead to out-of-tolerance results.

[0004] Therefore, designing a brake disc wear measuring ruler that is easy to operate and has a small measurement error is a problem to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a brake disc wear measuring ruler, which can solve the problems of using multiple measuring tools for brake disc measurement, cumbersome operation, and the need to perform detection under fixed working conditions, and achieves high accuracy in brake disc wear measurement, small cumulative error caused by repeated measurements, effectively reduces labor intensity and manufacturing costs, and improves work efficiency and product quality.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a brake disc wear measuring ruler, comprising:

[0008] A ruler body, one side of which can overlap the inner wall and the outer wall of the brake disc, and a detection area is formed inside the ruler body;

[0009] an eccentric wear measuring rod, which is inserted into the ruler body and has a distal end capable of being placed in the detection area, and a level is installed on the eccentric wear measuring rod; and

[0010] A magnetic force detection plate having magnetism and placed in the detection area;

[0011] The magnetic detection plate is fixedly connected to the end of the eccentric wear measuring rod;

[0012] Wherein, a slideway is provided on the inner wall of the ruler body for sliding connection with the magnetic detection plate so that the magnetic detection plate can be adsorbed on the wear surface of the brake disc.

[0013] Furthermore, the ruler body is constructed in an inverted trapezoidal structure with a wide top and a narrow bottom. A long hole is opened in the middle of the ruler body, and the long hole is gap-matched with the eccentric wear measuring rod.

[0014] Furthermore, the top and bottom ends of the ruler body are respectively formed with a first support and a second support extending toward the brake disc;

[0015] The detection area is formed between the first support and the second support;

[0016] The first support has a concave arc surface that fits with the outer wall of the brake disc, and the second support has a convex arc surface that fits with the inner wall of the brake disc. The convex arc surface and the concave arc surface are both provided with the slideway.

[0017] Furthermore, the side walls of the first support and the second support are marked with scale lines for measuring the wear of the brake disc.

[0018] Furthermore, the first support and the second support are made of magnetic metal material.

[0019] Furthermore, the magnetic detection plate is provided with a mounting hole, and the mounting hole has an internal thread for threaded connection with the threaded section of the eccentric wear measuring rod, and the diameter of the threaded section is smaller than the diameter of the eccentric wear measuring rod.

[0020] In the above technical solution, the utility model provides a brake disc wear measuring ruler, which has the following beneficial effects:

[0021] Compared with the prior art, the brake disc wear measuring ruler designed by the utility model is simple to operate, does not require calculation, can intuitively detect brake disc wear and eccentric wear, has high measurement accuracy, and is suitable for various work scenarios. It does not need to disassemble the train bogie, and can realize real-time detection of brake disc wear, effectively reducing the risk of railway train operation, which not only reduces labor intensity and manufacturing costs, but also improves work efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of a brake disc wear measuring ruler disclosed in the utility model;

[0024] Figure 2 It is a partial top view of a brake disc wear measuring ruler disclosed in the utility model;

[0025] Figure 3 This is an enlarged view of the position of a brake disc wear measuring ruler I disclosed in the utility model;

[0026] Figure 4 This is an enlarged view of the position of a brake disc wear measuring ruler II disclosed in the utility model;

[0027] Figure 5 It is an enlarged view of the position of brake disc wear measuring ruler III disclosed by the utility model.

[0028] Description of reference numerals:

[0029] Eccentric wear measuring rod 1; ruler body 2; first support 21; second support 22; slideway 23; detection area 24; scale line 25; oblong hole 26; magnetic detection plate 3; level 4. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] See also Figure 1 As shown;

[0032] The utility model discloses a brake disc wear measuring ruler, comprising: an eccentric wear measuring rod 1, a ruler body 2;

[0033] One side of the ruler body 2 can overlap the inner wall and the outer wall of the brake disc, and a detection area 24 is formed inside the ruler body 2;

[0034] The eccentric wear measuring rod 1 is inserted into the ruler body 2 and the end of the eccentric wear measuring rod 1 can be placed in the detection area 24. Specifically, one end of the eccentric wear measuring rod 1 is placed in the detection area 24 to form an internal end, and the other end is exposed outside the eccentric wear measuring rod 1 to form an external end.

[0035] The level meter 4 is installed at the middle of the external end of the eccentric wear measuring rod 1, and has a level measurement function. At the same time, the level meter 4 is provided with three limit positions: upper, middle and lower;

[0036] The measuring ruler also includes a magnetic detection plate 3 which has magnetism and is placed in the detection area 24;

[0037] The magnetic detection plate 3 is fixedly connected to the end of the eccentric wear measuring rod 1, that is, the magnetic detection plate 3 is fixedly connected to the built-in end of the eccentric wear measuring rod 1;

[0038] Among them, a slideway 23 is opened on the inner wall of the ruler body 2, which is used for sliding connection with the magnetic detection plate 3. At the same time, the slideway 23 can play a limiting role, so that the magnetic detection plate 3 can be adsorbed on the wear surface of the brake disc. When measuring the wear of the brake disc, if the liquid inside the spirit level 4 exceeds the middle position or is located at the upper and lower limits, it indicates that the eccentric wear is excessive.

[0039] See also Figure 2 As shown:

[0040] The ruler body 2 is constructed as an inverted trapezoidal structure with a wide top and a narrow bottom. A long hole 26 is opened in the middle of the ruler body 2. Specifically, the axis of the long hole 26 in the length direction coincides with the diameter of the brake disc. When the brake disc is eccentrically worn, the magnetic detection plate 3 drives the eccentric wear measuring rod 1 to tilt upward or downward, and combines with the level 4 to show that the brake disc has been eccentrically worn. In addition, by matching the long hole 26 with the eccentric wear measuring rod 1, it is possible to avoid interference with the eccentric wear measuring rod 1 and affect the fitting effect of the magnetic detection plate 3.

[0041] See also Figure 1 As shown:

[0042] A first support 21 and a second support 22 extending toward the brake disc are formed at the top and bottom of the ruler body 2, respectively, and a detection area 24 is formed between the first support 21 and the second support 22;

[0043] The first support 21 has a concave arc surface that fits with the outer wall of the brake disc, that is, the concave arc surface is adapted to the curvature of the outer wall of the brake disc, and is overlapped with the outer wall of the brake disc through the concave arc surface. The second support 22 has a convex arc surface that fits with the inner wall of the brake disc, that is, the convex arc surface is adapted to the curvature of the inner wall of the brake disc, and is overlapped with the inner wall of the brake disc through the convex arc surface. Both the convex arc surface and the concave arc surface are provided with a slideway 23, which is slidably connected to the two ends of the magnetic detection plate 3 through the slideway 23.

[0044] See also Figure 3 As shown:

[0045] Preferably, the side walls of the first support 21 and the second support 22 are marked with scale lines 25 for measuring the wear of the brake disc. Meanwhile, the first support 21 and the second support 22 are made of magnetic metal materials, and the first support 21 and the second support 22 can be fixed to the non-wear surfaces on both sides of the brake disc through magnetism.

[0046] Preferably, the magnetic detection plate 3 is provided with a mounting hole having an internal thread for threaded connection with the threaded section of the eccentric wear measuring rod 1, and the diameter of the threaded section is smaller than the diameter of the eccentric wear measuring rod. Specifically, a shoulder is formed between the threaded section and the main body of the eccentric wear measuring rod 1, and the shoulder abuts against the surface of the magnetic detection plate 3, so that the magnetic detection plate 3 and the eccentric wear measuring rod 1 are fixedly connected.

[0047] In the above technical solution, the utility model provides a brake disc wear measuring ruler, the working principle is:

[0048] The first support 21 and the second support 22 on both sides of the ruler body 2 are located on the non-wear surfaces on the inner and outer sides of the brake disc and are fixed by magnetism. The end faces of the first support 21 and the second support 22 abut against the shoulder surface of the brake disc itself (not shown), limiting the overlap amount of the first support 21 and the second support 22. At this time, the scale lines 25 on the sides of the first support 21 and the second support 22 correspond to the wear position of the brake disc, and the magnetic detection plate 3 is adsorbed on the wear surface of the brake disc. The magnetic detection plate 3 is fitted with the wear surface of the brake disc, and the spirit level 4 is used to detect whether the eccentric wear of the brake disc exceeds the limit, and the readings are taken at the places where the scales on both sides of the ruler body 2 coincide with the wear position of the brake disc to judge the wear amount of the brake disc.

[0049] The measuring ruler can be used in various working conditions such as the complete train status, brake disc disassembly and maintenance status, etc. At the same time, the overall structure of the measuring ruler is the same as the inner and outer arc of the brake disc. During inspection, the brake disc can be rotated to measure the full-size wear and eccentric wear of the brake disc.

[0050] Beneficial effects:

[0051] Compared with the prior art, the brake disc wear measuring ruler designed by the utility model is simple to operate, does not require calculation, can intuitively detect brake disc wear and eccentric wear, and is suitable for various work scenarios. It does not need to disassemble the train bogie, and can realize real-time detection of brake disc wear, effectively reducing the risk of railway train operation.

[0052] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A brake disc wear measuring ruler, characterized in that: include: A ruler body (2), one side of which can overlap the inner wall and the outer wall of the brake disc, and a detection area (24) is formed inside the ruler body (2); an eccentric wear measuring rod (1), which is inserted into the ruler body (2) and the end of which can be placed in the detection area (24), and a level (4) is installed on the eccentric wear measuring rod (1); and A magnetic force detection plate (3) having magnetism and placed in the detection area (24); The magnetic force detection plate (3) is fixedly connected to the end of the eccentric wear measuring rod (1); The inner wall of the ruler body (2) is provided with a slideway (23) for slidingly connecting with the magnetic detection plate (3) so as to facilitate the magnetic detection plate (3) to be adsorbed on the wear surface of the brake disc.

2. A brake disc wear measuring ruler according to claim 1, characterized in that; The ruler body (2) is constructed in an inverted trapezoidal structure with a wide top and a narrow bottom. A long hole (26) is provided in the middle of the ruler body (2), and the long hole (26) is clearance-matched with the eccentric wear measuring rod (1).

3. A brake disc wear measuring ruler according to claim 1 or 2, characterized in that; The top and bottom ends of the ruler body (2) are respectively formed with a first support (21) and a second support (22) extending toward the brake disc; The detection area (24) is formed between the first support (21) and the second support (22); The first support (21) has a concave arc surface that fits the outer wall of the brake disc, and the second support (22) has a convex arc surface that fits the inner wall of the brake disc. The convex arc surface and the concave arc surface are both provided with the slideway (23).

4. A brake disc wear measuring ruler according to claim 3, characterized in that ； The side walls of the first support (21) and the second support (22) are marked with scale lines (25) for measuring the wear of the brake disc.

5. A brake disc wear measuring ruler according to claim 3, characterized in that ； The first support (21) and the second support (22) are made of magnetic metal material.

6. A brake disc wear measuring ruler according to claim 1, characterized in that ； The magnetic detection plate (3) is provided with a mounting hole, the mounting hole having an internal thread for being threadedly connected to a threaded section of the eccentric wear measuring rod (1), and the diameter of the threaded section is smaller than the diameter of the eccentric wear measuring rod.

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