Auxiliary scale for detecting wear of brake disc of metro vehicle

Abstract

The utility model discloses a subway vehicle brake disc abrasion detection auxiliary scale, include: U type board, both ends of U type board all are fixedly arranged with fixed plate, the inside fixed setting of one of fixed plate has first magnet, the one side fixed setting of another fixed plate has fixed cylinder, the inside slide of fixed cylinder is provided with slide rod, and slide rod slide penetrates fixed plate, and one end of slide rod is fixedly provided with connector, and the inside fixed setting of one side of connector has second magnet, and the inside of fixed cylinder is provided with the measuring structure for measuring, when detecting the abrasion degree of subway vehicle brake disc, through first magnet inside fixed plate adsorbed in one side of subway vehicle brake disc, then slide fixed cylinder inside slide rod, make the second magnet inside one end connector of slide rod adsorbed in the other side of subway vehicle brake disc, detect the thickness of subway vehicle brake disc through the measuring structure inside slide rod, thereby convenient calculation its abrasion degree.

Description

Technical Field

[0001] This utility model relates to the field of brake disc wear detection, and in particular to an auxiliary ruler for brake disc wear detection in subway vehicles. Background Technology

[0002] As a core component of urban rail transit, the operational safety of subways directly relates to the safety of passengers' lives and property and the order of urban traffic. The braking system is a critical safety unit for subway vehicles, and the brake disc, as the core load-bearing component of the braking system, inevitably experiences wear during long-term high-speed friction. With the accumulation of wear, the thickness of the brake disc gradually decreases. If this wear exceeds a safety threshold, it will lead to reduced braking efficiency, increased braking distance, and even serious safety hazards such as brake disc cracking or failure. Therefore, regular inspection is necessary. Existing inspection methods lack positioning stability and are easily affected by operating force and the flatness of the contact surface, leading to measurement reference deviation and thus significant inspection errors. Furthermore, the scale lines of the measuring ruler are prone to wear over time, affecting the inspection. Therefore, an auxiliary ruler for inspecting brake disc wear in subway vehicles is proposed. Utility Model Content

[0003] Therefore, it is necessary to provide an auxiliary ruler for detecting brake disc wear in subway vehicles to address the aforementioned technical issues.

[0004] To solve the above-mentioned technical problems, this utility model addresses the issues of insufficient positioning stability in the detection method, susceptibility to operational force and surface flatness, leading to measurement benchmark shift and resulting in significant detection errors. Additionally, the scale lines of the measuring ruler are prone to wear over time, affecting the detection process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The U-shaped plate has fixed plates at both ends. A first magnet is fixedly installed inside one of the fixed plates, and a fixed cylinder is fixedly installed on one side of the other fixed plate. A sliding rod is slidably installed inside the fixed cylinder and slides through the fixed plate. A connector is fixedly installed at one end of the sliding rod, and a second magnet is fixedly installed inside one side of the connector. A measuring structure for measurement is installed inside the fixed cylinder, and a magnifying structure for observation is installed on the outside of the fixed cylinder.

[0006] In a preferred embodiment of the auxiliary ruler for detecting brake disc wear of subway vehicles provided by this utility model, a groove is provided on one side of both the fixing plate and the connector, and the first magnet and the second magnet are respectively fastened inside the groove.

[0007] As a preferred embodiment of the auxiliary ruler for detecting brake disc wear in subway vehicles provided by this utility model, the measuring structure includes a polygonal block, which is fixedly installed on one side of the connector. A measuring rod is slidably arranged inside the sliding rod, and one end of the measuring rod is inserted into the outside of the polygonal block. A gripping plate is fixedly arranged at one end of the sliding rod, and a sealing structure for sealing the measuring rod is arranged inside the gripping plate.

[0008] As a preferred embodiment of the auxiliary ruler for detecting brake disc wear of subway vehicles provided by this utility model, the sealing structure includes a circular plate, which is threadedly installed inside one side of the grip plate. A contact block is fixedly provided on one side of the circular plate, and one end of the contact block abuts against one end of the measuring rod.

[0009] As a preferred embodiment of the auxiliary ruler for detecting wear of subway vehicle brake discs provided by this utility model, the grip plate has a threaded groove inside, the outer side of the circular plate is machined with external threads, and the circular plate is threadedly connected to the threaded groove.

[0010] As a preferred embodiment of the auxiliary ruler for detecting brake disc wear of subway vehicles provided by this utility model, the magnification structure includes an annular plate, which is fixedly installed on the outside of the fixed cylinder. An annular sleeve is rotatably provided on the outside of the annular plate, and a hinge seat is fixedly provided on the outside of the annular sleeve. A rotating shaft is rotatably provided inside the hinge seat, and a magnifying glass is fixedly provided on the outside of the rotating shaft.

[0011] As a preferred embodiment of the auxiliary ruler for detecting brake disc wear of subway vehicles provided by this utility model, the annular sleeve has an annular groove inside, and the size of the annular plate is adapted to the annular groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention, by setting up a U-shaped plate, a fixed plate, a first magnet, a fixed cylinder, and a sliding rod, allows for the detection of wear on subway vehicle brake discs. The first magnet inside the fixed plate attracts the brake disc to one side, and then the sliding rod inside the fixed cylinder slides, causing a second magnet inside the connector at one end of the sliding rod to attract the brake disc to the other side. An annular sleeve is rotatably mounted on the outside of the fixed cylinder via an annular plate. A magnifying glass is hinged to the outside of the annular sleeve via a hinge seat and a damped rotating shaft. The measuring rod inside the sliding rod is observed through the magnifying glass, thereby detecting the thickness of the subway vehicle brake disc and facilitating the calculation of its wear degree. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 This utility model provides a schematic diagram of the connection structure between the sliding rod and the connector; Figure 3 This is a schematic diagram of the connection structure between the fixed cylinder and the sliding rod of this utility model; Figure 4 This utility model Figure 1 Enlarged structural diagram of section A.

[0015] The markings in the diagram are explained as follows: 1. U-shaped plate; 2. Fixing plate; 3. First magnet; 4. Fixing cylinder; 5. Sliding rod; 6. Connector; 7. Second magnet; 8. Polygonal block; 9. Measuring rod; 10. Grip plate; 11. Round plate; 12. Abutting block; 13. Ring plate; 14. Ring sleeve; 15. Hinge seat; 16. Rotating shaft; 17. Magnifying glass. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] Example Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4An auxiliary scale for detecting wear on subway vehicle brake discs includes: a U-shaped plate 1, with fixed plates 2 fixed at both ends of the U-shaped plate 1. A first magnet 3 is fixedly installed inside one of the fixed plates 2, and a fixed cylinder 4 is fixedly installed on one side of the other fixed plate 2. A sliding rod 5 is slidably installed inside the fixed cylinder 4, and the sliding rod 5 slides through the fixed plate 2. A connector 6 is fixedly installed at one end of the sliding rod 5, and a second magnet 7 is fixedly installed inside one side of the connector 6. The fixed cylinder 4 has a measuring structure for measurement and a magnifying structure for observation on its outer side. When detecting the wear of the subway vehicle brake disc, the first magnet 3 inside the fixed plate 2 is attracted to one side of the subway vehicle brake disc. Then, the sliding rod 5 inside the fixed cylinder 4 is slid, so that the second magnet 7 inside the connector 6 at one end of the sliding rod 5 is attracted to the other side of the subway vehicle brake disc. The thickness of the subway vehicle brake disc is detected by the measuring structure inside the sliding rod 5, thus facilitating the calculation of its wear degree.

[0018] Preferably, one of the fixing plates 2 and the connector 6 has a groove on one side, and the first magnet 3 and the second magnet 7 are respectively fastened into the groove, which facilitates the installation of the first magnet 3 and the second magnet 7.

[0019] Preferably, the measuring structure includes a polygonal block 8, which is fixedly installed on one side of the connector 6. A measuring rod 9 is slidably disposed inside the sliding rod 5, with one end of the measuring rod 9 inserted into the outside of the polygonal block 8. A grip plate 10 is fixedly disposed at one end of the sliding rod 5, and a sealing structure for sealing the measuring rod 9 is disposed inside the grip plate 10. In use, the measuring rod 9 is slidably installed inside the sliding rod 5, with one end of the measuring rod 9 inserted into the outside of the polygonal block 8, thereby limiting the measuring rod 9. Then, the sealing structure prevents the measuring rod 9 from sliding out, and the thickness of the subway vehicle brake disc is detected by the measuring rod 9.

[0020] Preferably, the sealing structure includes a circular plate 11, which is threadedly installed inside one side of the grip plate 10. A contact block 12 is fixedly provided on one side of the circular plate 11, and one end of the contact block 12 abuts against one end of the measuring rod 9. When the measuring rod 9 is slidably installed inside the sliding rod 5, the circular plate 11 is threadedly connected to the inside of the grip plate 10, thereby causing the contact block 12 at one end of the circular plate 11 to abut against the measuring rod 9, thus facilitating the disassembly and assembly of the measuring rod 9.

[0021] Preferably, the gripping plate 10 has a threaded groove inside, and the outer side of the circular plate 11 is machined with external threads. The circular plate 11 is threadedly connected to the threaded groove, and the gripping plate 10 is threadedly connected to the circular plate 11 to achieve sealing.

[0022] Preferably, the magnification structure includes an annular plate 13, which is fixedly installed on the outside of the fixed cylinder 4. An annular sleeve 14 is rotatably arranged on the outside of the annular plate 13. A hinge seat 15 is fixedly arranged on the outside of the annular sleeve 14. A rotating shaft 16 is rotatably arranged inside the hinge seat 15. A magnifying glass 17 is fixedly arranged on the outside of the rotating shaft 16. In use, the annular sleeve 14 is rotatably installed on the outside of the fixed cylinder 4 through the annular plate 13. The magnifying glass 17 is dampedly hinged to the outside of the annular sleeve 14 through the hinge seat 15 and the rotating shaft 16. The magnifying glass 17 facilitates observation of the measuring rod 9.

[0023] Preferably, the annular sleeve 14 has an annular groove inside, and the size of the annular plate 13 is adapted to the annular groove. The annular sleeve 14 is rotatably mounted on the outside of the fixed cylinder 4 through the annular plate 13.

[0024] The auxiliary ruler for detecting brake disc wear in subway vehicles provided by this utility model is used as follows: When testing the wear of a subway vehicle brake disc, the first magnet 3 inside the fixed plate 2 is attracted to one side of the subway vehicle brake disc. Then, the sliding rod 5 inside the sliding fixed cylinder 4 is slidably installed inside the sliding rod 5. One end of the measuring rod 9 is inserted into the outside of the polygonal block 8, thereby limiting the measuring rod 9. The circular plate 11 is threadedly connected to the grip plate 10, so that the abutment block 12 at one end of the circular plate 11 abuts against the measuring rod 9, causing the second magnet 7 inside the connector 6 at one end of the sliding rod 5 to be attracted to the other side of the subway vehicle brake disc. The annular sleeve 14 is rotatably installed on the outside of the fixed cylinder 4 through the annular plate 13. The annular sleeve 14 is damped and hinged to the outside of the annular sleeve 14 through the hinge seat 15 and the rotating shaft 16. The measuring rod 9 inside the sliding rod 5 is observed through the magnifying glass 17, thereby detecting the thickness of the subway vehicle brake disc and facilitating the calculation of its wear.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An auxiliary ruler for detecting brake disc wear in subway vehicles, characterized in that, It includes: U-shaped plate (1), both ends of which are fixedly provided with fixing plates (2), one of the fixing plates (2) is fixedly provided with a first magnet (3), and the other fixing plate (2) is fixedly provided with a fixing cylinder (4) on one side. The fixing cylinder (4) is slidably provided with a sliding rod (5) inside, and the sliding rod (5) slides through the fixing plate (2). One end of the sliding rod (5) is fixedly provided with a connector (6), and the inside of one side of the connector (6) is fixedly provided with a second magnet (7). The fixing cylinder (4) is provided with a measuring structure for measurement, and the outside of the fixing cylinder (4) is provided with a magnifying structure for observation.

2. The auxiliary scale for detecting brake disc wear in subway vehicles according to claim 1, characterized in that, One of the fixing plates (2) and the connector (6) has a groove on one side, and the first magnet (3) and the second magnet (7) are respectively fastened inside the groove.

3. The auxiliary scale for detecting brake disc wear in subway vehicles according to claim 1, characterized in that, The measuring structure includes a polygonal block (8), which is fixedly installed on one side of the connector (6). A measuring rod (9) is slidably arranged inside the sliding rod (5), and one end of the measuring rod (9) is inserted into the outside of the polygonal block (8). A grip plate (10) is fixedly arranged at one end of the sliding rod (5), and a sealing structure for sealing the measuring rod (9) is arranged inside the grip plate (10).

4. The auxiliary scale for detecting brake disc wear in subway vehicles according to claim 3, characterized in that, The sealing structure includes a circular plate (11), which is threadedly installed inside one side of the grip plate (10). A contact block (12) is fixedly provided on one side of the circular plate (11), and one end of the contact block (12) abuts against one end of the measuring rod (9).

5. The auxiliary scale for detecting brake disc wear in subway vehicles according to claim 4, characterized in that, The grip plate (10) has a threaded groove inside, and the outer side of the circular plate (11) is machined with external threads. The circular plate (11) is threadedly connected to the threaded groove.

6. The auxiliary scale for detecting brake disc wear in subway vehicles according to claim 1, characterized in that, The magnification structure includes an annular plate (13), which is fixedly installed on the outside of the fixed cylinder (4). An annular sleeve (14) is rotatably provided on the outside of the annular plate (13). A hinge seat (15) is fixedly provided on the outside of the annular sleeve (14). A rotating shaft (16) is provided inside the hinge seat (15) with damping rotation. A magnifying glass (17) is fixedly provided on the outside of the rotating shaft (16).

7. The auxiliary scale for detecting brake disc wear in subway vehicles according to claim 6, characterized in that, The annular sleeve (14) has an annular groove inside, and the size of the annular plate (13) is adapted to the annular groove.

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