Wheel bearing sensor support for a rail vehicle

Abstract

The application discloses a wheel bearing sensor support of rail transit vehicle, which comprises two rails and a bottom plate below the two rails, a moving groove is horizontally arranged on the bottom plate at a corresponding position below the two rails, two rail clamps are arranged in each moving groove, the two rail clamps arranged in the same moving groove are clamped on the two sides of the rail, a device box is fixedly connected to the center of the upper end of the bottom plate, two partitions are fixedly connected in the device box, the device box is divided into a driving cavity and two placing grooves by the two partitions, the placing grooves are arranged at the positions on the two sides of the driving cavity, and the device box is provided with an inlet and an outlet which are in communication with the placing grooves and are arranged at the left and right ends of the device box. The application has the advantages that when a wheel bearing sensor fails or is damaged, the wheel bearing sensor can be automatically replaced, another spare wheel bearing sensor can be quickly and timely moved to a designated working position, and stable monitoring work can be carried out.

Description

Technical Field

[0001] This invention relates to the field of rail transit vehicle technology, and more particularly to a wheel bearing sensor bracket for rail transit vehicles. Background Technology

[0002] In existing technologies, wheel bearing sensors are typically mounted on the inside of the rail using specific brackets, positioning them close to the wheels when the subway passes. However, prolonged exposure to subway traffic can easily damage the internal components of the wheel bearing sensors, requiring regular manual maintenance. Furthermore, if a sensor suddenly fails and cannot be replaced promptly, subway travel data cannot be obtained at specific locations, impacting subway safety. Existing wheel bearing sensor brackets lack the capability for timely sensor replacement.

[0003] To address the aforementioned issues, we propose a wheel bearing sensor bracket for rail transit vehicles. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by proposing a wheel bearing sensor bracket for rail transit vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wheel bearing sensor bracket for rail transit vehicles, comprising two rails and a base plate located below the two rails. The upper end of the base plate is laterally provided with moving grooves at corresponding positions below the two rails. Each moving groove contains two rail clamps, which clamp the two rail clamps located in the same moving groove to both sides of the rail. A device box is fixedly connected to the center of the upper end of the base plate. Two partitions are fixedly connected inside the device box, dividing the device box into a driving cavity and two placement slots. The placement slots are located on both sides of the driving cavity. The left and right ends of the device box have inlets and outlets communicating with the placement slots. Fixed plates are fixedly connected to the opposite sides of the two rail clamps near the device box, and a moving mechanism is provided between the two fixed plates.

[0006] The moving mechanism includes a bidirectional threaded rod rotatably connected to one side of two fixed plates. The bidirectional threaded rod passes through each partition. Each of the two fixed plates and its corresponding partition is fixedly connected to a limiting rod. The limiting rod consists of a helical rod and a straight rod. The end of the helical rod away from the straight rod is fixedly connected to the fixed plate, and the end of the straight rod away from the helical rod is fixedly connected to the partition. Two L-shaped frame plates are threaded onto the bidirectional threaded rod. The two L-shaped frame plates are symmetrically arranged and located on the left and right sides of the device box, respectively. One L-shaped frame plate is attached to the fixed plate, and the other L-shaped frame plate is attached to the partition and located in the placement groove. The two limiting rods pass through the corresponding L-shaped frame plates and are slidably connected to them. Each L-shaped frame plate is equipped with a wheel bearing sensor.

[0007] In the aforementioned wheel bearing sensor bracket for a rail transit vehicle, two rail clamps located in the same movable groove are connected by a common clamping screw.

[0008] In the aforementioned wheel bearing sensor bracket for a rail transit vehicle, a worm gear is fixedly sleeved on the bidirectional threaded rod and inside the drive cavity. A worm is engaged at the front end of the worm gear. A rotating rod is fixedly passed through the axial position of the worm. The rotating rod is rotatably connected to the upper and lower inner walls of the drive cavity. A drive motor for rotating the rotating rod is fixedly installed at the upper end of the device box.

[0009] In the aforementioned wheel bearing sensor bracket for a rail transit vehicle, two connecting holes are opened on the L-shaped frame plate at the corresponding positions of the wheel bearing sensor. Two connecting rods are inserted into the wheel bearing sensor, with the lower ends of the connecting rods inserted into the corresponding connecting holes. Expansion grooves are provided on the opposite sides of the two connecting rods located within the same L-shaped frame plate. A limiting block is slidably connected within each expansion groove. A first spring is fixedly connected between the limiting block and the inner wall of the expansion groove. A limiting slot is opened in each connecting hole at the corresponding position of the expansion groove. The end of the limiting block away from the first spring is inserted into the limiting slot. A fixing block is fixedly connected on each L-shaped frame plate at the corresponding position of the limiting slot. A movable groove is opened at the end of the fixing block away from the L-shaped frame plate. A push block is slidably connected within the movable groove. A second spring is fixedly connected between the push block and the inner wall of the movable groove. A push rod is fixedly connected to the end of the push block near the limiting slot. The push rod passes through the second spring and the inner wall of the movable groove and contacts the limiting block.

[0010] In the aforementioned wheel bearing sensor bracket for a rail transit vehicle, each of the limiting blocks has an inclined surface at the end away from the corresponding wheel bearing sensor, and each of the push blocks has a hexagonal groove at the end away from the push rod.

[0011] In the aforementioned wheel bearing sensor bracket for a rail transit vehicle, one end of the limiting rod connected to the fixing plate is located directly above the bidirectional threaded rod, and the other end of the limiting rod connected to the partition is located directly behind the bidirectional threaded rod. The distance between the limiting rod and the bidirectional threaded rod is always equal.

[0012] Compared with existing technologies, the advantages of the wheel bearing sensor bracket of this rail transit vehicle are:

[0013] This invention, through the configuration of a moving mechanism, a device box, two L-shaped support plates, and two wheel bearing sensors, allows for the timely and rapid replacement of wheel bearing sensors during normal subway monitoring. One wheel bearing sensor operates within one rail, while the other is de-energized and stored in a slot within the device box. When a working wheel bearing sensor malfunctions or is damaged, its power is remotely cut off, while the other wheel bearing sensor is energized. A drive motor rotates a bidirectional threaded rod, moving the faulty wheel bearing sensor to its corresponding slot. Simultaneously, the energized wheel bearing sensor is gradually moved to the inside of the other rail for monitoring. This allows for timely and rapid replacement of the wheel bearing sensors, preventing the loss of subway travel information due to delayed replacement of damaged sensors.

[0014] The limiting rod consists of a spiral rod and a straight rod, and the distance between the limiting rod and the bidirectional threaded rod is always equal, allowing the L-shaped frame plate and wheel bearing sensor to rotate 90 degrees during the movement process, thus making it easier to enter the placement slot. At the same time, it keeps the wheel bearing sensor that is out of the placement slot vertical, maintaining stable monitoring work. Attached Figure Description

[0015] Figure 1 This is a front structural perspective view of a wheel bearing sensor bracket for a rail transit vehicle proposed in this invention.

[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This is a perspective view of the side structure of the L-shaped frame plate in the wheel bearing sensor bracket of a rail transit vehicle according to the present invention.

[0018] Figure 4 This is a top view of a portion of the moving mechanism in a wheel bearing sensor bracket for a rail transit vehicle, as proposed in this invention.

[0019] In the diagram: 1 Rail, 2 Base plate, 3 Moving groove, 4 Rail clamp, 5 Clamping screw, 6 Device box, 7 Partition plate, 8 Placement groove, 9 Drive cavity, 10 Fixing plate, 11 Entrance / exit, 12 Bidirectional threaded rod, 13 Helical rod, 14 Straight rod, 15 L-shaped frame plate, 16 Wheel bearing sensor, 17 Connecting hole, 18 Worm gear, 19 Worm, 20 Rotating rod, 21 Drive motor, 22 Connecting rod, 23 Telescopic groove, 24 Limiting block, 25 First spring, 26 Limiting slot, 27 Fixing block, 28 Movable groove, 29 Push block, 30 Second spring. Detailed Implementation

[0020] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] Example 1

[0022] Reference Figure 1-4 A wheel bearing sensor bracket for rail transit vehicles includes two rails 1 and a base plate 2 located below the two rails 1. The upper end of the base plate 2 is horizontally provided with a moving groove 3 at the corresponding position below the two rails 1. Each moving groove 3 is provided with two rail clamps 4. The two rail clamps 4 located in the same moving groove 3 are clamped on both sides of the rail 1. The two rail clamps 4 located in the same moving groove 3 are connected by a clamping screw 5. The rail clamps 4 are fixed to the bottom wall of the moving groove 3 by bolts, which facilitates fixing the position of the bracket during installation and makes it stably connected to the two rails 1, so as to facilitate subsequent installation work.

[0023] A device box 6 is fixedly connected to the center of the upper end of the base plate 2. Two partitions 7 are fixedly connected inside the device box 6. The two partitions 7 divide the device box 6 into a drive cavity 9 and two placement slots 8. The placement slots 8 are located on both sides of the drive cavity 9. The placement slots 8 are used to place spare sensors and damaged sensors, and have good protection. Both ends of the device box 6 have inlets and outlets 11 that communicate with the placement slots 8. The two track clamps 4 near the device box 6 are fixedly connected to the opposite side of a fixed plate 10. A moving mechanism is provided between the two fixed plates 10.

[0024] The moving mechanism includes a bidirectional threaded rod 12 rotatably connected to the opposite side of the two fixed plates 10. The threads on the left and right sides of the bidirectional threaded rod 12 have opposite directions. The bidirectional threaded rod 12 passes through each partition 7. Limiting rods are fixedly connected to both fixed plates 10 and their corresponding partitions 7. The limiting rod is composed of a helical rod 13 and a straight rod 14. The end of the helical rod 13 away from the straight rod 14 is fixedly connected to the fixed plate 10, and the end of the straight rod 14 away from the helical rod 13 is fixedly connected to the partition 7. The end of the limiting rod connected to the fixed plate 10 is located directly above the bidirectional threaded rod 12, and the end of the limiting rod connected to the partition 7 is located directly behind the bidirectional threaded rod 12. The distance between the limiting rod and the bidirectional threaded rod 12 is always equal.

[0025] Two L-shaped support plates 15 are threaded onto the bidirectional threaded rod 12. The two L-shaped support plates 15 are symmetrically arranged and located on the left and right sides of the device box 6, respectively. One L-shaped support plate 15 is attached to the fixing plate 10, and the other L-shaped support plate 15 is attached to the partition plate 7 and located in the placement groove 8. Two limiting rods pass through the corresponding L-shaped support plates 15 and are slidably connected to them. Each L-shaped support plate 15 is equipped with a wheel bearing sensor 16. Since the distance between the limiting rod and the bidirectional threaded rod 12 is always equal, when the bidirectional threaded rod 12 rotates, the two L-shaped support plates 15 threaded to it can move under the limiting action of the limiting rods. The L-shaped support plates originally attached to the fixing plate 10 can move. The L-shaped plate 15 moves along the spiral rod 13 of the limiting rod towards the straight rod 14. During the movement, the L-shaped plate 15 gradually rotates backward. After moving to the straight rod 14, the L-shaped plate 15 rotates 90 degrees, causing the wheel bearing sensor 16, which was originally vertical, to invert and then directly enter the corresponding placement slot 8. At the same time, the L-shaped plate 15, which was originally located in another placement slot 8, moves along the limiting rod under the rotation of the bidirectional threaded rod 12, gradually moving from the straight rod 14 to the spiral rod 13, and finally contacts the corresponding fixing plate 10. At the same time, it rotates forward 90 degrees, making the originally inverted wheel bearing sensor 16 vertical and located in the designated detection position inside the other rail 1. This achieves the purpose of automatically replacing the wheel bearing sensor 16.

[0026] A worm gear 18 is fixedly sleeved on the bidirectional threaded rod 12 and inside the drive cavity 9. A worm 19 is meshed at the front end of the worm gear 18. A rotating rod 20 is fixedly passed through the axial position of the worm 19. The rotating rod 20 is rotatably connected to the upper and lower inner walls of the drive cavity 9. A drive motor 21 that drives the rotating rod 20 to rotate is fixedly installed at the upper end of the device box 6. The drive motor 21 can directly drive the bidirectional threaded rod 12 to rotate through the transmission between the worm gear 18 and the worm 19.

[0027] It should be noted that the start and stop of the two wheel bearing sensors 16 and the forward and reverse rotation of the drive motor 21 can be remotely controlled. The control principles are existing technologies and will not be explained here.

[0028] Two connection holes 17 are provided on the L-shaped frame plate 15 at the corresponding positions of the wheel bearing sensor 16. Two connecting rods 22 are inserted into the wheel bearing sensor 16, with the lower ends of the connecting rods 22 inserted into the corresponding connection holes 17. The two connecting rods 22 located in the same L-shaped frame plate 15 have telescopic grooves 23 on their opposite sides. Each telescopic groove 23 is slidably connected to a limiting block 24. A first spring 25 is fixedly connected between the limiting block 24 and the inner wall of the telescopic groove 23. Each connection hole 17 and the corresponding position of the telescopic groove 23 has a limiting slot 26. The end of the limiting block 24 away from the first spring 25 is inserted into the limiting slot 26. The insertion of the limiting block 24 into the limiting slot 26 serves to fix the wheel bearing sensor 16 to the L-shaped frame plate 15.

[0029] Each L-shaped frame plate 15 is fixedly connected to a fixing block 27 at the corresponding position of the limiting slot 26. The end of the fixing block 27 away from the L-shaped frame plate 15 has a movable groove 28. A push block 29 is slidably connected in the movable groove 28. A second spring 30 is fixedly connected between the push block 29 and the inner wall of the movable groove 28. A push rod is fixedly connected to the end of the push block 29 near the limiting slot 26. The push rod passes through the second spring 30 and the inner wall of the movable groove 28 and is in contact with the limiting insert 24. When the push block 29 is pushed, the limiting insert 24 can be pushed out of the limiting slot 26, and the connection between the wheel bearing sensor 16 and the L-shaped frame plate 15 can be released. Compared with the previous bolt connection, disassembly is more convenient.

[0030] Each limiting plug 24 has a beveled end away from the corresponding wheel bearing sensor 16. The beveled end allows the connecting rod 22 to be directly inserted into the connecting hole 17, after which the limiting plug 24 automatically inserts into the corresponding limiting slot 26, making installation easier. Each push block 29 has a hexagonal groove at the end away from the push rod. A specific hexagonal rod can be used to easily push the push block 29, preventing unauthorized theft and disassembly of the wheel bearing sensor 16.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wheel bearing sensor bracket for a rail transit vehicle, comprising two rails (1) and a base plate (2) located below the two rails (1), characterized in that, The upper end of the base plate (2) is cut with a horizontal moving groove (3) at the corresponding position below the two rails (1). Each moving groove (3) is provided with two rail clamps (4). The two rail clamps (4) located in the same moving groove (3) are clamped on both sides of the rails (1). A device box (6) is fixedly connected to the center of the upper end of the base plate (2). Two partitions (7) are fixedly connected to the device box (6). The two partitions (7) divide the device box (6) into a driving cavity (9) and two placement slots (8). The placement slots (8) are located on both sides of the driving cavity (9). The left and right ends of the device box (6) are provided with an entrance (11) that communicates with the placement slots (8). The two rail clamps (4) near the device box (6) are fixedly connected to a fixed plate (10) on the opposite side. A moving mechanism is provided between the two fixed plates (10). The moving mechanism includes a bidirectional threaded rod (12) rotatably connected to the opposite side of the two fixed plates (10). The bidirectional threaded rod (12) passes through each partition (7). A limit rod is fixedly connected between each of the two fixed plates (10) and the corresponding partition (7). The limit rod is composed of a helical rod (13) and a straight rod (14). The end of the helical rod (13) away from the straight rod (14) is fixedly connected to the fixed plate (10), and the end of the straight rod (14) away from the helical rod (13) is fixedly connected to the partition. (7) Fixed connection: Two L-shaped frame plates (15) are threaded onto the bidirectional threaded rod (12). The two L-shaped frame plates (15) are symmetrically arranged and located on the left and right sides of the device box (6). One L-shaped frame plate (15) is attached to the fixing plate (10), and the other L-shaped frame plate (15) is attached to the partition plate (7) and located in the placement groove (8). The two limiting rods pass through the corresponding L-shaped frame plates (15) and are slidably connected to them. Each L-shaped frame plate (15) is provided with a wheel bearing sensor (16).

2. The wheel bearing sensor bracket for a rail transit vehicle according to claim 1, characterized in that, The two track clamps (4) located in the same moving groove (3) are connected by a common threaded screw (5).

3. The wheel bearing sensor bracket for a rail transit vehicle according to claim 1, characterized in that, A worm gear (18) is fixedly sleeved on the bidirectional threaded rod (12) and inside the drive cavity (9). A worm (19) is engaged at the front end of the worm gear (18). A rotating rod (20) is fixedly inserted through the axial center of the worm (19). The rotating rod (20) is rotatably connected to the upper and lower inner walls of the drive cavity (9). A drive motor (21) for driving the rotating rod (20) to rotate is fixedly installed at the upper end of the device box (6).

4. The wheel bearing sensor bracket for a rail transit vehicle according to claim 1, characterized in that, Two connecting holes (17) are provided on the L-shaped frame plate (15) and at the corresponding position of the wheel bearing sensor (16). Two connecting rods (22) are inserted into the wheel bearing sensor (16). The lower end of the connecting rod (22) is inserted into the corresponding connecting hole (17). The two connecting rods (22) located in the same L-shaped frame plate (15) are provided with telescopic grooves (23) on the opposite side. Each telescopic groove (23) is slidably connected with a limit block (24). A first spring (25) is fixedly connected between the limit block (24) and the inner wall of the telescopic groove (23). Each connecting hole (17) and at the corresponding position of the telescopic groove (23) is provided with a limit slot ( 26), the end of the limiting plug (24) away from the first spring (25) is inserted into the limiting slot (26). Each of the L-shaped frame plates (15) is fixedly connected to a fixing block (27) at the corresponding position of the limiting slot (26). The end of the fixing block (27) away from the L-shaped frame plate (15) is provided with a movable groove (28). A push block (29) is slidably connected in the movable groove (28). A second spring (30) is fixedly connected between the push block (29) and the inner wall of the movable groove (28). A push rod is fixedly connected to the end of the push block (29) near the limiting slot (26). The push rod passes through the second spring (30) and the inner wall of the movable groove (28) and is in contact with the limiting plug (24).

5. A wheel bearing sensor bracket for a rail transit vehicle according to claim 4, characterized in that, Each of the limiting blocks (24) has an inclined surface at the end away from the corresponding wheel bearing sensor (16), and each of the push blocks (29) has a hexagonal groove at the end away from the push rod.

6. A wheel bearing sensor bracket for a rail transit vehicle according to claim 1, characterized in that, One end of the limiting rod connected to the fixing plate (10) is located directly above the bidirectional threaded rod (12), and the other end of the limiting rod connected to the partition plate (7) is located directly behind the bidirectional threaded rod (12). The distance between the limiting rod and the bidirectional threaded rod (12) is always equal.

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