Mounting mechanism for wheel sensor on railway track

By employing meshing teeth and elastic damping pads on the rails, the problems of unstable sensor installation and weak impact resistance were solved, enabling stable installation and efficient signal acquisition on different tracks.

CN223864868UActive Publication Date: 2026-02-03SHANGHAI HUICHE RAIL TRANSIT CO LTD
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Patent Information

Application Number
CN202520694995.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-02-03
Estimated Expiration
2035-04-11

AI Technical Summary

Technical Problem

Existing sensor installation methods are unstable, prone to loosening, have weak impact resistance, cannot adapt to different track types, and are complex and inefficient to install.

Method used

The left and right brake blocks are respectively engaged on both sides of the rail and fixed to the bracket by bolts. The inner side of the bracket and the outer side of the brake block are equipped with meshing teeth. The bracket is equipped with elastic damping pads and cable exit plates. The modular design can adapt to different track gauges and rail types.

Benefits of technology

It improves the stability and shock resistance of sensor installation, enhances compatibility and ease of installation, reduces maintenance costs, and ensures the stability and continuity of signal acquisition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of railway transportation monitoring equipment, and discloses a mounting mechanism for a wheel sensor on a railway track, which comprises a support, a left brake block, a right brake block and a bolt, the bolt transversely penetrates through the left brake block and the right brake block and then is fixedly connected with the support through a nut. A wheel sensor is fixed to the support, first meshing teeth are arranged on the inner side of the support, second meshing teeth are arranged on the outer side of the left brake block, and the first meshing teeth are meshed with the second meshing teeth. The mounting mechanism for the wheel sensor on the railway track solves the problem that an existing sensor is poor in mounting stability.
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Description

Technical Field

[0001] This utility model relates to the technical field of railway transportation monitoring equipment, specifically to an installation mechanism for wheel sensors on railway tracks. Background Technology

[0002] Existing sensor installation methods are mostly simple and crude, making it difficult to adapt to the subtle deformations caused by factors such as vibrations from passing trains, thermal expansion and contraction, and geological changes in railway tracks over long periods. This makes sensors prone to loosening and displacement during use, affecting detection accuracy and potentially causing them to fail completely due to positional shifts, resulting in poor installation stability.

[0003] When a train passes at high speed, it generates a powerful impact, including the impact of wheels on the track and airflow. Conventional sensor mechanical structures lack effective buffering and shock-resistant designs, making internal precision components highly susceptible to damage. This not only shortens the sensor's lifespan but also increases railway operating costs due to frequent maintenance and replacements, highlighting the sensor's weak shock resistance.

[0004] Railway tracks come in various types, with different gauges and rail configurations. Traditional wheel sensors have poor versatility in their mounting structure, making them difficult to install and use on various railway lines. This limits their widespread application, often requiring customized modifications for specific lines, which consumes a lot of manpower and resources, and also presents compatibility issues.

[0005] Traditional installation requires assembling two sensors separately, then measuring the distance and combining them. This process is cumbersome, inefficient, and inconsistent, resulting in complex assembly issues. Utility Model Content

[0006] The purpose of this invention is to provide an installation mechanism for wheel sensors on railway tracks, in order to solve at least one of the aforementioned problems in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An installation mechanism for a wheel sensor on a railway track includes a bracket, a left brake block, a right brake block, and a bolt. The left and right brake blocks are respectively engaged on both sides of the lower edge of the rail. The bolt passes through the left and right brake blocks and is fixedly connected to the bracket by a nut. The wheel sensor is fixed on the bracket. The bracket has a first meshing tooth on its inner side and a second meshing tooth on the outer side of the left brake block. The first meshing tooth meshes with the second meshing tooth.

[0009] In this technical solution, the left and right brake blocks are respectively engaged on both sides of the lower edge of the rail. After bolts pass through the left and right brake blocks and are fixed to the bracket with nuts, the bracket can be fixed on the rail. The bracket is used to fix the wheel sensor. Since the bracket has a first meshing tooth on the inner side and a second meshing tooth on the outer side of the left brake block, the first and second meshing teeth cooperate to improve the self-locking performance and enhance the stability of the bracket installation.

[0010] Furthermore, to adapt to different track gauges, the bracket includes an upper end plate and a vertical extension plate. The wheel sensor is fixed on the upper end plate. A vertical strip groove is provided on the vertical extension plate. The bolt passes through the vertical strip groove and is fixed to the bracket by a nut. The first meshing tooth is set along the length direction of the vertical extension plate. The second meshing tooth meshes with the first meshing tooth at any height position to adjust the height of the bracket. The bracket can be adjusted up and down, which greatly improves the convenience of assembly.

[0011] Furthermore, in order to enable the simultaneous installation of two wheel sensors and solve the problem of complex installation steps in the existing separate assembly of two sensors, there are two left brake blocks, two right brake blocks, two bolts and two nuts. The bracket includes two vertical extension plates, and the upper plate is long and narrow. The upper plate has two mounting positions for installing wheel sensors. The two bolts pass through the vertical slots of the corresponding vertical extension plates and are fixed to the bracket by the corresponding nuts.

[0012] Furthermore, in order to absorb high-frequency vibrations from the rails, an elastic damping pad is provided between the wheel sensor and the upper end plate.

[0013] Furthermore, a first elastic damping pad and a second elastic damping pad are sequentially provided between the wheel sensor and the upper end plate. The lower end of the first elastic damping pad has several strip-shaped protrusions, which abut against the second elastic damping pad. The first and second elastic damping pads are used together to form a double-layer buffer structure. The double-layer buffer structure is directly connected to the bracket and is used to absorb high-frequency vibrations transmitted from the rail, effectively dispersing the impact force.

[0014] Furthermore, in order to improve the absorption of high-frequency vibrations from the rails, the elastic damping pad is made of high-damping rubber material.

[0015] Furthermore, in order to better achieve the desired installation effect of the left and right brake blocks with the rail, the left and right brake blocks are provided with hooks facing each other, and the two hooks are respectively hooked on both sides of the lower edge of the rail.

[0016] Furthermore, to facilitate the lead-out of the sensor wires, a lead-out plate is also included. The lead-out plate is provided with lead-out holes and is located on the outside of the right brake block. Two bolts pass through the two ends of the lead-out plate respectively.

[0017] Furthermore, in order to better facilitate the installation of the cable outlet plate, multiple support blocks are provided on the outer circumference of the right brake block, and the cable outlet plate abuts against the support blocks.

[0018] Furthermore, to improve the ease and reliability of installation between the wheel sensor and the bracket, a pressure plate and screws are also included. The wheel sensor has connection holes on both sides, and the pressure plate is set at the connection holes. The pressure plate has mounting holes that match the shape of the connection holes. The screws pass through the mounting holes, connection holes, first elastic damping pads, second elastic damping pads, and upper end plates in sequence to fix the wheel sensor.

[0019] The beneficial effects of this utility model are as follows: In this technical solution, since the left brake block and the right brake block are respectively engaged on both sides of the lower edge of the rail, and then bolts are passed through the left brake block and the right brake block and fixedly connected to the bracket by nuts, the bracket can be fixed on the rail. The bracket is used to fix the wheel sensor. Since the bracket has a first meshing tooth on the inner side and a second meshing tooth on the outer side of the left brake block, the first meshing tooth and the second meshing tooth cooperate, resulting in better self-locking performance and improved stability of bracket installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 2 This is a first-view structural schematic diagram of the present invention;

[0022] Figure 3 This is a side view of the structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the bracket in this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of some components in this utility model.

[0025] In the diagram: bracket 1; upper end plate 1.1; vertical extension plate 1.2; vertical strip groove 1.3; left brake block 2; right brake block 3; bolt 4; rail 5; nut 6; wheel sensor 7; first meshing tooth 8; second meshing tooth 9; first elastic damping pad 10; second elastic damping pad 11; cable outlet plate 12; support block 13; pressure plate 14; mounting hole 15; screw 16; hook 17; strip protrusion 18. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is 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. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0027] Example 1:

[0028] like Figures 1-5 As shown, this embodiment provides an installation mechanism for a wheel sensor on a railway track, including a bracket 1, a left brake block 2, a right brake block 3, and a bolt 4. The left brake block 2 and the right brake block 3 are respectively engaged on both sides of the lower edge of the rail 5. The bolt 4 passes through the left brake block 2 and the right brake block 3 and is fixedly connected to the bracket 1 by a nut 6. A wheel sensor 7 is fixed on the bracket 1. The inner side of the bracket 1 is provided with a first meshing tooth 8, and the outer side of the left brake block 2 is provided with a second meshing tooth 9. The first meshing tooth 8 and the second meshing tooth 9 mesh.

[0029] In this technical solution, since the left brake block 2 and the right brake block 3 are respectively engaged on both sides of the lower edge of the rail 5, and then the bolt 4 passes through the left brake block 2 and the right brake block 3 and is fixedly connected to the bracket 1 by the nut 6, the bracket 1 can be fixed on the rail 5. The bracket 1 is used to fix the wheel sensor 7. Since the bracket 1 has a first meshing tooth 8 on the inner side and a second meshing tooth 9 on the outer side of the left brake block 2, the first meshing tooth 8 and the second meshing tooth 9 cooperate, the self-locking performance is better, and the stability of the bracket 1 installation is improved.

[0030] Example 2:

[0031] This embodiment is an optimization based on the above embodiment 1.

[0032] To accommodate different track gauges, the bracket 1 includes an upper end plate 1.1 and a vertical extension plate 1.2. The wheel sensor 7 is fixed on the upper end plate 1.1. A vertical strip groove 1.3 is provided on the vertical extension plate 1.2. The bolt 4 passes through the vertical strip groove 1.3 and is fixed to the bracket 1 by the nut 6. The first meshing tooth 8 is set along the length direction of the vertical extension plate 1.2. The second meshing tooth 9 meshes with the first meshing tooth 8 at any height position to adjust the height of the bracket 1. The bracket 1 can be adjusted up and down, which greatly improves the convenience of assembly.

[0033] Example 3:

[0034] This embodiment is an optimization based on the above embodiment 1.

[0035] In order to enable the simultaneous installation of two wheel sensors 7 and solve the problem of complicated installation steps in the existing two-sensor assembly, there are two left brake block 2, two right brake block 3, two bolts 4 and two nuts 6. The bracket 1 includes two vertical extension plates 1.2, and the upper plate 1.1 is long and narrow. The upper plate 1.1 has two mounting positions for installing wheel sensors 7. The two bolts 4 pass through the vertical slots 1.3 of the corresponding vertical extension plates 1.2 and are fixed to the bracket 1 by the corresponding nuts 6.

[0036] Example 4:

[0037] This embodiment is an optimization based on the above embodiment 1.

[0038] In order to absorb the high-frequency vibration from the rail 5, an elastic damping pad is provided between the wheel sensor 7 and the upper end plate 1.1.

[0039] Example 5:

[0040] This embodiment is an optimization based on the above embodiment 1.

[0041] A first elastic damping pad 10 and a second elastic damping pad 11 are sequentially arranged between the wheel sensor 7 and the upper end plate 1.1. The lower end of the first elastic damping pad 10 has several strip-shaped protrusions 18, which abut against the second elastic damping pad 11. The first elastic damping pad 10 and the second elastic damping pad 11 are used together to form a double-layer buffer structure. The double-layer buffer structure is directly connected to the bracket 1 and is used to absorb high-frequency vibrations transmitted from the rail 5, effectively dispersing the impact force.

[0042] Example 6:

[0043] This embodiment is an optimization based on the above embodiment 1.

[0044] To enhance the absorption of high-frequency vibrations from rail 5, the elastic damping pad is made of high-damping rubber material.

[0045] Example 7:

[0046] This embodiment is an optimization based on the above embodiment 1.

[0047] In order to better achieve the desired installation effect of the left brake block 2 and the right brake block 3 with the rail 5, the left brake block 2 and the right brake block 3 are provided with hooks 17 facing each other, and the two hooks 17 are respectively hooked on both sides of the lower edge of the rail 5.

[0048] Example 8:

[0049] This embodiment is an optimization based on the above embodiment 1.

[0050] To facilitate the lead-out of the sensor wires, a wire outlet plate 12 is also included. The wire outlet plate 12 is provided with a wire outlet hole. The wire outlet plate 12 is located outside the right brake block 3, and two bolts 4 pass through the two ends of the wire outlet plate 12 respectively.

[0051] Example 9:

[0052] This embodiment is an optimization based on the above embodiment 1.

[0053] In order to better facilitate the installation of the cable outlet plate 12, multiple support blocks 13 are provided on the outer circumference of the right brake block 3, and the cable outlet plate 12 abuts against the support blocks 13.

[0054] Example 10:

[0055] This embodiment is an optimization based on the above embodiment 1.

[0056] To improve the ease and reliability of installation between the wheel sensor 7 and the bracket 1, a pressure plate 14 and screws 16 are also included. The wheel sensor 7 has connection holes on both sides. The pressure plate 14 is set at the connection holes. The pressure plate 14 has mounting holes 15 that match the shape of the connection holes. The screws 16 pass through the mounting holes 15, the connection holes, the first elastic damping pad 10, the second elastic damping pad 11 and the upper end plate 1.1 in sequence to fix the wheel sensor 7.

[0057] In summary, this technical solution achieves high installation stability through the engagement of the first meshing tooth 8 and the second meshing tooth 9. The elastic damping pad provides superior impact resistance and excellent vibration damping, ensuring the wheel sensor 7 remains within its optimal sensing range. This prevents damage to the sensor from rigid collisions and guarantees the stability and continuity of signal acquisition. The second meshing tooth 9 engages with the first meshing tooth 8 at any height, allowing adjustment of the bracket 1's height according to different track gauges and rail types, offering strong compatibility and convenient adjustment. The modular design ensures stable and convenient installation.

[0058] During installation, the wheel sensor 7, the first elastic damping pad 10, and the second elastic damping pad 11 are placed sequentially on the bracket 1. The pressure plate 14 is then fastened to both sides of the wheel sensor 7, and screws 16 are used to tighten and secure it to the bracket 1. The other wheel sensor 7 is assembled in the same manner. The left brake block 2 and the right brake block 3 are respectively secured to both ends of the rail 5. The cable outlet plate 12 is then attached to one end of the right brake block 3, and bolts 4 are inserted. The other end of the bolts 4 passes through the bracket 1. The bracket 1 is adjusted to a suitable height, and the assembly is completed by tightening nuts 6.

[0059] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A mounting mechanism for wheel sensors on railway tracks, characterized in that: The system includes a bracket, a left brake block, a right brake block, and a bolt. The left and right brake blocks are respectively engaged on both sides of the lower edge of the rail. The bolt passes through the left and right brake blocks and is fixedly connected to the bracket by a nut. A wheel sensor is fixed on the bracket. The inner side of the bracket is provided with a first meshing tooth, and the outer side of the left brake block is provided with a second meshing tooth. The first meshing tooth and the second meshing tooth mesh together.

2. The mounting mechanism for a wheel sensor on a railway track according to claim 1, characterized in that: The bracket includes an upper end plate and a vertical extension plate. The wheel sensor is fixed on the upper end plate. A vertical strip groove is provided on the vertical extension plate. The bolt passes through the vertical strip groove and is fixed to the bracket by a nut. The first meshing tooth is set along the length direction of the vertical extension plate. The second meshing tooth meshes with the first meshing tooth at any height position to adjust the height of the bracket.

3. The mounting mechanism for a wheel sensor on a railway track according to claim 2, characterized in that: There are two left brake blocks, two right brake blocks, two bolts and two nuts. The bracket includes two vertical extension plates. The upper plate is long and narrow. The upper plate has two mounting positions for installing wheel sensors. The two bolts pass through the vertical slots of the corresponding vertical extension plates and are fixed to the bracket by the corresponding nuts.

4. A mounting mechanism for a wheel sensor on a railway track according to claim 2 or 3, characterized in that: An elastic damping pad is provided between the wheel sensor and the upper end plate.

5. A mounting mechanism for a wheel sensor on a railway track according to claim 2 or 3, characterized in that: A first elastic damping pad and a second elastic damping pad are sequentially provided between the wheel sensor and the upper end plate. The lower end of the first elastic damping pad is provided with several strip-shaped protrusions, which abut against the second elastic damping pad.

6. The mounting mechanism for a wheel sensor on a railway track according to claim 4, characterized in that: The elastic damping pad is made of high-damping rubber material.

7. The mounting mechanism for a wheel sensor on a railway track according to claim 3, characterized in that: The left and right brake blocks are provided with hooks facing each other, and the two hooks are respectively hooked to both sides of the lower edge of the rail.

8. The mounting mechanism for a wheel sensor on a railway track according to claim 7, characterized in that: It also includes a cable outlet plate, which has cable outlet holes. The cable outlet plate is located outside the right brake block, and two bolts pass through both ends of the cable outlet plate.

9. The mounting mechanism for a wheel sensor on a railway track according to claim 8, characterized in that: The right brake block is provided with multiple support blocks on its outer circumference, and the cable outlet plate abuts against the support blocks.

10. The mounting mechanism for a wheel sensor on a railway track according to claim 5, characterized in that: It also includes a pressure plate and screws. The wheel sensor has connection holes on both sides. The pressure plate is set at the connection hole. The pressure plate has mounting holes that match the shape of the connection hole. The screws pass through the mounting hole, the connection hole, the first elastic damping pad, the second elastic damping pad and the upper end plate in sequence to fix the wheel sensor.