Railway wheel diameter hot state detection device

Abstract

The application discloses a kind of track wheel wheel diameter hot state detection device, specifically relates to track wheel detection technical field, including mounting seat, further include supporting device, clamping assembly and adjusting assembly.The present application is set by adjusting assembly, on the one hand, it can keep the same clamping force to track wheel when the diameter of wheel changes and can further push the clamping block to clamp the track wheel when the diameter of wheel is reduced due to cooling, compensate the change of wheel diameter, improve the stability and detection accuracy of device, on the other hand, after scanning is completed, the gas in the telescopic cylinder in compression state pushes the clamping block to further slide on the support frame, and the oxide skin and impurities on the track wheel on the support frame are scraped off, so that the oxide skin and impurities are avoided to accumulate, so that the supporting environment of track wheel remains clean and consistent, the variable introduced by impurity accumulation is eliminated, and the reliability and accuracy of detection are improved.

Description

Technical Field

[0001] This invention relates to the field of rail wheel inspection technology, and more specifically, to a rail wheel diameter hot-state inspection device. Background Technology

[0002] Hot-state testing of rail wheel diameter is crucial because the friction between the wheel and the track during high-speed braking and travel generates extremely high temperatures, causing thermal expansion and a significant increase in wheel diameter. Measuring the wheel after it has cooled down fails to reflect its true dimensions in actual operation, and this dimensional deviation directly affects train operational safety (such as its fit with brake discs and gearboxes) and ride smoothness. Therefore, direct testing of the wheel diameter while it is hot is essential to obtain the most accurate data. This data is crucial for ensuring braking system effectiveness, preventing derailment risks, and optimizing wheel refinishing strategies, thereby guaranteeing safe, stable, and efficient train operation.

[0003] When performing hot-state testing on the diameter of rail wheels, the testing device needs to rotate the rail wheel and then scan it using a scanning device. However, each time a wheel of a different diameter is changed, workers need to manually measure, position, move, and lock the clamping device, which affects the overall testing efficiency. Furthermore, manual operation cannot precisely control the clamping force. If the clamping force is too small, the wheel may slip or shift radially during rotation, leading to distorted scanning data or even test failure. If the clamping force is too large, it may cause scratches, compression deformation, or other damage to the hot-state wheel. At the same time, during continuous testing, oxide scale and impurities on the bottom of the rail wheel accumulate on the surface of the support mechanism, causing changes in the surface height of the support mechanism, affecting the scanning accuracy, and thus affecting the test results.

[0004] This invention provides a hot detection device for the diameter of a rail wheel, which aims to solve the problems of workers being unable to accurately control the clamping force when adjusting the clamping device each time a wheel of a different diameter is changed, thus affecting the overall detection efficiency, and the problem that oxide scale and impurities on the bottom of the rail wheel cause changes in the surface height of the support mechanism during continuous detection, affecting the scanning accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide a hot detection device for the diameter of a rail wheel, in order to solve the problems mentioned in the background art, such as the inability of workers to accurately control the clamping force when changing wheels of different diameters, which affects the overall detection efficiency, and the problem that oxide scale and impurities on the bottom of the rail wheel cause changes in the surface height of the support mechanism during continuous detection, which affects the scanning accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rail wheel diameter hot-state detection device, comprising a mounting base, a mounting frame, a scanning device, a rotating table, and further comprising: The support device, at least three sets, is equidistantly arranged on the rotating platform to support the track wheels; Clamping assembly: Each set of the support devices is provided with a set of clamping assemblies for clamping the rail wheels; An adjustment component is disposed on the rotary table and connected to the support device and the clamping component; The support device is used to generate air pressure in response to the weight of the rail wheel, and the adjustment component is used to distribute the air pressure to the clamping component to drive it to clamp the rail wheel synchronously, and automatically stop the air pressure distribution when the clamping force reaches a preset value.

[0007] Preferably, the support device includes a base and a support frame. The base is fixedly connected to the top of the rotary table. A telescopic groove is provided on the top of the base. A first piston is fixedly connected to the bottom of the support frame. The first piston is slidably connected in the telescopic groove. A first elastic element is connected between the bottom of the first piston and the telescopic groove.

[0008] Preferably, the clamping assembly includes a clamping block, a telescopic cylinder, a second piston, and a piston rod. The clamping block is slidably connected to the top of the support frame, the telescopic cylinder is fixedly connected to the top of the support frame, the second piston is slidably connected to the inside of the telescopic cylinder, and the second piston is fixedly connected to the clamping block through the piston rod.

[0009] Preferably, the adjustment component includes a mounting block, one side of which has an air supply channel, and the outer side of the base has an air outlet. The air outlet communicates with the interior of the telescopic groove. Multiple air outlets are connected to one end of the air supply channel through pipes and multi-port connectors. The other end of the air supply channel is connected to a synchronous flow divider. Multiple output ends of the synchronous flow divider are connected to multiple telescopic cylinders through pipes.

[0010] Preferably, the adjustment assembly further includes an adjustment cavity, a sealing groove, a third piston, a second elastic element, a support rod, and a sealing plate. The adjustment cavity is located inside the mounting block and communicates with the gas delivery channel. The third piston is slidably connected to the interior of the adjustment cavity. One side of the third piston is connected to the adjustment cavity via the second elastic element. The other side of the third piston is fixedly connected to the sealing plate via the support rod. The sealing plate is slidably connected to the sealing groove, which is located inside the mounting block and communicates with the gas delivery channel.

[0011] Preferably, the adjusting assembly further includes a storage tank, a fourth piston, a third elastic element, and a pressure relief channel. The storage tank is fixedly connected to the rotating platform. The fourth piston is slidably connected to the interior of the storage tank. A third elastic element is connected between one side of the fourth piston and the storage tank. The elastic coefficient of the third elastic element is greater than that of the second elastic element. The pressure relief channel is opened inside the mounting block and communicates with the gas supply channel. The pressure relief channel is connected to the storage tank through a pipe.

[0012] Preferably, it also includes a jetting device, which includes multiple jet pipes fixedly connected to the mounting base and connected to an external air supply device for blowing air onto the top of the rotary table.

[0013] Preferably, the adjusting component is configured to automatically cut off the air pressure supply when the air pressure increases after the clamping component contacts the rail wheel.

[0014] Preferably, the clamping assembly is configured to use residual air pressure in the telescopic cylinder to drive the clamping block to move after the track wheel is removed, thereby cleaning the surface of the support frame.

[0015] Preferably, the storage box is configured to store excess air pressure and assist the adjustment component in resetting.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention, through the setting of a support device and a clamping assembly, diverts the gas in multiple telescopic slots to multiple telescopic cylinders via a synchronous diversion device, ensuring that the amount of gas entering the multiple telescopic cylinders is equal. This drives multiple second piston components to move the corresponding piston rods and clamping blocks synchronously toward the track wheel, thereby limiting and clamping the track wheel. This prevents positional deviation of the track wheel placed on multiple support frames and avoids displacement of the track wheel during subsequent rotational scanning detection, reducing manual intervention and improving overall detection efficiency.

[0017] 2. By adjusting the component settings, this invention ensures that the clamping component only pushes the third piston to press and block the sealing plate to seal the air supply channel after the clamping block contacts the rail wheel, causing an increase in air pressure in the telescopic cylinder and air supply channel. This allows the clamping component to maintain a consistent clamping force on the rail wheel and further pushes the clamping block to clamp the rail wheel when the wheel diameter shrinks due to cooling, compensating for wheel diameter changes and preventing clamping slack during rotational scanning detection, thus improving device stability and detection accuracy. Furthermore, after scanning, the compressed gas in the telescopic cylinder pushes the clamping block to slide further on the support frame, scraping off oxide scale and impurities that have fallen from the rail wheel. This prevents oxide scale and impurities from accumulating, keeping the support environment for the rail wheel clean and consistent, eliminating variables introduced by impurity accumulation, and improving the reliability and accuracy of detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the support device and clamping assembly structure of the present invention.

[0020] Figure 3 This is a cross-sectional view of the internal structure of the support device and clamping assembly of the present invention.

[0021] Figure 4 This is a schematic diagram of the adjustment component structure of the present invention.

[0022] Figure 5 This is a cross-sectional view of the internal structure of the adjustment component of the present invention.

[0023] Figure 6 This is a schematic diagram of the structure of the third piston component of the present invention.

[0024] Figure 7 This is a cross-sectional view of the internal structure of the sealing groove of the present invention.

[0025] Figure 8 This is a schematic diagram of the jet pipe structure of the present invention.

[0026] Figure 9 This is a schematic diagram of the track wheel clamping structure of the present invention.

[0027] The attached figures are labeled as follows: 1. Mounting base; 2. Mounting frame; 21. Scanning device; 3. Rotary table; 4. Support device; 41. Base; 42. Support frame; 43. Telescopic groove; 44. First piston; 45. First elastic element; 5. Clamping assembly; 51. Clamping block; 52. Telescopic cylinder; 53. Second piston; 54. Piston rod; 6. Adjustment assembly; 61. Mounting block; 62. Air supply channel; 63. Air outlet; 64. Multi-port connector; 65. Synchronous flow divider; 66. Adjustment chamber; 67. Sealing groove; 68. Third piston; 69. Second elastic element; 610. Support rod; 611. Sealing plate; 612. Storage box; 613. Fourth piston; 614. Third elastic element; 615. Pressure relief channel; 7. Jet device; 71. Jet pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention. Example 1

[0029] Each time a wheel of a different diameter is changed, workers need to manually measure, position, move, and lock the clamping device, which affects the overall inspection efficiency.

[0030] refer to Figures 1 to 9 A rail wheel diameter thermal detection device according to an embodiment of the present invention includes a mounting base 1, a mounting frame 2 on the mounting base 1, and multiple sets of scanning devices 21 for scanning rail wheels at different angles on the mounting base 1 and the mounting frame 2. The scanning devices 21 can be laser scanning devices. A rotating platform 3 arranged in a ring is rotatably connected to the top of the mounting base 1, and a driving device for driving the rotating platform 3 to rotate is provided on the mounting base 1.

[0031] refer to Figures 1 to 3 It also includes a support device 4, which is configured in at least three sets and is equidistantly arranged on the rotary table 3 to support the track wheels. Each set of support devices 4 is equipped with a clamping assembly 5. The support device 4 includes a base 41 and a support frame 42. The base 41 is fixedly connected to the top of the rotary table 3. The top of the base 41 is provided with a telescopic groove 43. The bottom of the support frame 42 is fixedly connected to a first piston member 44 that is slidably connected in the telescopic groove 43. The bottom of the first piston member 44 is connected to the telescopic groove 43 with a first elastic member 45. The support frame 42 on each set of support devices 4 faces the center of the rotary table 3.

[0032] refer to Figures 1 to 3The clamping assembly 5 is used to clamp the rail wheel on the support device 4. It includes a clamping block 51 slidably connected to the top of the support frame 42. A telescopic cylinder 52 is fixedly connected to the top of the support frame 42. A second piston 53 is slidably connected inside the telescopic cylinder 52. The second piston 53 is fixedly connected to the clamping block 51 through a piston rod 54.

[0033] refer to Figure 1 Figure 4 and Figure 5 It also includes an adjustment component 6, which includes a mounting block 61 mounted on the rotary table 3. One side of the mounting block 61 has a through-type air supply channel 62. The outer side of the base 41 has an air outlet 63 that communicates with the inside of the telescopic groove 43. Multiple air outlets 63 on the multiple sets of support devices 4 are connected to the other end of the air supply channel 62 through pipes and multi-port connectors 64. The other end of the air supply channel 62 is connected to a synchronous flow divider 65. The synchronous flow divider 65 can be a synchronous flow divider motor. Multiple output ends of the synchronous flow divider 65 are connected to multiple telescopic cylinders 52 on the multiple sets of clamping components 5 through pipes. When gas enters the telescopic cylinder 52 through the output end of the synchronous flow divider 65, the gas will push the second piston 53 and drive the clamping block 51 to move towards the center of the rotary table 3 through the piston rod 54.

[0034] refer to Figure 1 and Figure 8 It also includes a jetting device 7, which is used to form an air wall above the rotary table 3 to prevent oxide scale and impurities on the rail wheels from falling onto the mounting base 1 and the rotary table 3. It includes multiple jetting pipes 71 fixedly connected to the mounting base 1 for blowing air upwards onto the rotary table 3. The multiple jetting pipes 71 are connected to an external air supply device.

[0035] In actual operation, the external air supply device is first activated to supply air to multiple jet pipes 71, forming an air wall above the rotary table 3 to prevent oxide scale and impurities on the track wheels from falling onto the mounting base 1 and the rotary table 3. Then, the high-temperature track wheels are placed on top of multiple support frames 42 by an external robotic arm. Under their own weight, the track wheels will compress the multiple support frames 42, causing the multiple support frames 42 to push the corresponding first piston 44 downward within the corresponding telescopic groove 43, compressing the corresponding first piston 44. During the downward movement of the multiple first piston 44 within the corresponding telescopic groove 43, the multiple telescopic grooves 43... The gas inside the 3 will enter the multi-port connector 64 through the corresponding air outlet 63 and pipe, and then enter the synchronous flow divider 65 through the gas delivery channel 62. The synchronous flow divider 65 will divide the input gas and output it to multiple telescopic cylinders 52, so that the amount of gas entering the multiple telescopic cylinders 52 is equal, thereby pushing multiple second pistons 53 to drive the corresponding piston rods 54 and clamping blocks 51 to move synchronously towards the direction of the track wheel, thereby limiting and clamping the track wheel, thus avoiding positional deviation of the track wheel placed on multiple support frames 42, and avoiding displacement of the track wheel during subsequent rotation scanning detection.

[0036] After the track wheel is clamped, the drive device is started to drive the rotary table 3 to rotate. Then, multiple scanning devices 21 set on the mounting base 1 and the mounting frame 2 scan and detect the track wheel diameter. Finally, the scanned track wheel diameter data is transmitted to the controller.

[0037] In summary, by setting up the support device 4 and the clamping assembly 5, the gas in the multiple telescopic grooves 43 is diverted by the synchronous diversion device 65 and output to the multiple telescopic cylinders 52, so that the amount of gas entering the multiple telescopic cylinders 52 is equal. This pushes the multiple second pistons 53 to drive the corresponding piston rods 54 and the clamping block 51 to move synchronously towards the direction of the track wheel, thereby limiting and clamping the track wheel. This avoids positional deviation of the track wheel placed on the multiple support frames 42 and avoids displacement of the track wheel during subsequent rotational scanning detection, reducing manual intervention and improving overall detection efficiency. Example 2

[0038] In actual operation, the clamping component 5 cannot precisely control the clamping force. If the clamping force is too small, the wheel may slip or radially displace when rotating, resulting in distorted scanning data or even detection failure. If the clamping force is too large, it may cause scratches, squeezing deformation and other damage to the wheel in a hot state. At the same time, during continuous detection, the oxide scale and impurities at the bottom of the track wheel will accumulate on the surface of the support mechanism, causing the surface height of the support mechanism to change, affecting the scanning accuracy and thus affecting the detection results. Therefore, this embodiment improves the device described in the above embodiment.

[0039] refer to Figures 1 to 9 The mounting block 61 has an adjustment cavity 66 that communicates with the gas delivery channel 62. The mounting block 61 also has a sealing groove 67 that communicates with the gas delivery channel 62. A third piston 68 is slidably connected inside the adjustment cavity 66. A second elastic element 69 is connected between the side of the third piston 68 away from the gas delivery channel 62 and the adjustment cavity 66. A sealing plate 611 that is slidably connected in the sealing groove 67 is fixedly connected to the side of the third piston 68 near the gas delivery channel 62 by a support rod 610. When gas enters the adjustment cavity 66 from the gas delivery channel 62, it will push the third piston 68 to compress the second elastic element 69 and move it away from the gas delivery channel 62. The support rod 610 will then drive the sealing plate 611 to seal the gas delivery channel 62. A storage tank 612 is fixedly connected to the rotary table 3. A fourth piston 613 is slidably connected inside the storage tank 612. A third elastic element 614 is connected between one side of the fourth piston 613 and the storage tank 612. A pressure relief channel 615 communicating with the gas supply channel 62 is opened inside the mounting block 61. The pressure relief channel 615 is connected to the storage tank 612 through a pipe. When the gas in the pressure relief channel 615 enters the storage tank 612, it can push the fourth piston 613 to compress the third elastic element 614. The elastic coefficient of the third elastic element 614 is greater than that of the second elastic element 69.

[0040] In actual operation, the gas entering the multiple telescopic cylinders 52 pushes the corresponding second piston 53 to drive the multiple clamping blocks 51 to contact the rail wheel. The air pressure inside the multiple telescopic cylinders 52 and the air supply channel 62 will gradually increase. In order to avoid the multiple clamping blocks 51 from having excessive clamping force on the rail wheel due to excessive air pressure in the multiple telescopic cylinders 52, which would cause damage to the rail wheel under high temperature, the gas will enter the regulating chamber 66 after the air pressure in the air supply channel 62 increases. This will push the third piston 68 to compress the second elastic element 69, causing the third piston 68 to move away from the air supply channel 62. It will also drive the sealing plate 611 to move in the sealing groove 67 through the support rod 610, gradually blocking the air supply channel 62. When the air supply channel 62 is completely blocked by the sealing plate 611, the gas entering the air supply channel 62 cannot enter the synchronous diversion device 65 and the multiple telescopic cylinders 52, so that the air pressure in the telescopic cylinders 52 cannot continue to increase, thus ensuring the clamping force of the multiple clamping blocks 51 on the rail wheel.

[0041] It should be noted that only when the clamping block 51 contacts the rail wheel, causing the air pressure in the telescopic cylinder 52 and the air supply channel 62 to increase, will the increased air pressure push the third piston 68 to compress the second elastic element 69, thereby causing the sealing plate 611 to block the air supply channel 62. When clamping rail wheels of different diameters, the clamping assembly 5 can still maintain the same clamping force to clamp the rail wheels, thus adapting to changes in the wheel diameter of the rail wheels and maintaining the same clamping force. On the one hand, this avoids damage to the rail wheels at high temperatures caused by excessive clamping force, and on the other hand, it avoids clamping failure caused by insufficient clamping force. During the rotary scanning detection process, when the diameter of the rail wheel shrinks due to cooling, the compressed gas in the telescopic cylinder 52 can further push the clamping block 51 to clamp the rail wheel, compensate for the change in wheel diameter, avoid clamping slack during the rotary scanning detection process, and improve the stability of the device. The timing of the air pressure pushing the third piston 68 to block the air supply channel 62 by adjusting the elastic coefficient of the second elastic element 69 can be adjusted synchronously, thereby simultaneously adjusting the clamping force of the clamping block 51 on the rail wheel.

[0042] When the gas delivery channel 62 is completely blocked by the sealing plate 611, and the rail wheel squeezes the support frame 42, causing multiple first pistons 44 to continue moving downward in the corresponding telescopic grooves 43, the gas pressure in the gas delivery channel 62 will further increase. This will cause the gas to enter the storage tank 612 through the pressure relief channel 615 and the pipeline for storage, and push the fourth piston 613 to compress the third elastic member 614. This will allow the support frame 42 to drive the first pistons 44 to continue moving downward in the telescopic grooves 43 until they reach the bottom limit position of the telescopic grooves 43. The larger the diameter of the rail wheel, the more gas enters the storage tank 612, and the smaller the diameter of the rail wheel, the less gas enters the storage tank 612. This ensures that the height of the rail wheels remains consistent when scanning and detecting rail wheels of different diameters, avoiding any impact on the rotational scanning of subsequent rail wheels and improving the accuracy of hot detection.

[0043] After scanning, the rail wheel is removed from multiple support frames 42 by an external robotic arm. At this time, the compressed gas in the telescopic cylinder 52 can push the clamping block 51 to slide further on the support frame 42, scraping off the oxide scale and impurities that fall off the rail wheel on the support frame 42. The oxide scale and impurities fall onto the air wall formed by multiple jet pipes 71, thereby avoiding the accumulation of oxide scale and impurities, keeping the support environment of the rail wheel clean and consistent, eliminating the variables introduced by the accumulation of impurities, and improving the reliability and accuracy of the detection. As the external robotic arm removes the track wheel from the multiple support frames 42, the multiple support frames 42 gradually move upward under the rebound action of the corresponding first elastic element 45, causing a negative pressure to be generated in the air delivery channel 62. Since the elastic coefficient of the third elastic element 614 is greater than that of the second elastic element 69, the third elastic element 614 will preferentially push the fourth piston element 613 to squeeze the gas in the storage box 612 into the air delivery channel 62, compensating for the negative pressure generated in the air delivery channel 62. This allows the third piston element 68 to still drive the sealing plate 611 to keep the air delivery channel 62 sealed, without affecting the further sliding of the clamping block 51 on the support frame 42. After all the gas in the storage tank 612 enters the gas delivery channel 62, the negative pressure generated in the gas delivery channel 62 will cause the second elastic element 69 to push the third piston element 68 and drive the sealing plate 611 to release the blockage of the gas delivery channel 62, so that the gas in the multiple telescopic cylinders 52 returns to the corresponding telescopic groove 43 through the synchronous diversion device 65, the gas delivery channel 62, the multi-port connector 64 and the air outlet 63, so that the multiple support frames 42 and the multiple clamping blocks 51 return to their initial positions.

[0044] In summary, by adjusting the settings of component 6, on the one hand, the clamping component 5 will only push the third piston 68 to press and drive the sealing plate 611 to block the air supply channel 62 after the clamping block 51 contacts the rail wheel, causing the air pressure in the telescopic cylinder 52 and the air supply channel 62 to increase. This allows the clamping component 5 to maintain the same clamping force to clamp the rail wheel. Furthermore, when the rail wheel's diameter shrinks due to cooling, the clamping block 51 can be further pushed to clamp the rail wheel, compensating for the change in wheel diameter and preventing clamping slack during the rotational scanning detection process, thus improving the stability and detection accuracy of the device. On the other hand, after scanning, the compressed gas in the telescopic cylinder 52 can push the clamping block 51 to slide further on the support frame 42, scraping off the oxide scale and impurities that have fallen from the rail wheel on the support frame 42. This prevents the accumulation of oxide scale and impurities, keeping the support environment of the rail wheel clean and consistent, eliminating variables introduced by impurity accumulation, and improving the reliability and accuracy of the detection.

[0045] In conclusion, 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 device for thermal detection of the diameter of a rail wheel, comprising a mounting base, a mounting frame, a scanning device, and a rotating table, characterized in that, Also includes: The support device, at least three sets, is equidistantly arranged on the rotating platform to support the track wheels; Clamping assembly: Each set of the support devices is provided with a set of clamping assemblies for clamping the rail wheels; An adjustment component is disposed on the rotary table and connected to the support device and the clamping component; The support device is used to generate air pressure in response to the weight of the rail wheel, and the adjustment component is used to distribute the air pressure to the clamping component to drive it to clamp the rail wheel synchronously, and automatically stop the air pressure distribution when the clamping force reaches a preset value.

2. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The support device includes a base and a support frame. The base is fixedly connected to the top of the rotary table. A telescopic groove is provided on the top of the base. A first piston is fixedly connected to the bottom of the support frame. The first piston is slidably connected in the telescopic groove. A first elastic element is connected between the bottom of the first piston and the telescopic groove.

3. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The clamping assembly includes a clamping block, a telescopic cylinder, a second piston, and a piston rod. The clamping block is slidably connected to the top of the support frame, the telescopic cylinder is fixedly connected to the top of the support frame, the second piston is slidably connected to the inside of the telescopic cylinder, and the second piston is fixedly connected to the clamping block through the piston rod.

4. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The adjustment component includes a mounting block, one side of which has an air supply channel, and the outer side of the base has an air outlet. The air outlet communicates with the interior of the telescopic groove. Multiple air outlets are connected to one end of the air supply channel through pipes and multi-port connectors. The other end of the air supply channel is connected to a synchronous flow divider. Multiple output ends of the synchronous flow divider are connected to multiple telescopic cylinders through pipes.

5. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The adjustment assembly further includes an adjustment cavity, a sealing groove, a third piston, a second elastic element, a support rod, and a sealing plate. The adjustment cavity is located inside the mounting block and communicates with the gas supply channel. The third piston is slidably connected to the interior of the adjustment cavity. One side of the third piston is connected to the adjustment cavity via the second elastic element. The other side of the third piston is fixedly connected to the sealing plate via the support rod. The sealing plate is slidably connected to the sealing groove, which is located inside the mounting block and communicates with the gas supply channel.

6. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The regulating assembly further includes a storage tank, a fourth piston, a third elastic element, and a pressure relief channel. The storage tank is fixedly connected to the rotating platform. The fourth piston is slidably connected to the inside of the storage tank. A third elastic element is connected between one side of the fourth piston and the storage tank. The elastic coefficient of the third elastic element is greater than that of the second elastic element. The pressure relief channel is opened inside the mounting block and communicates with the gas supply channel. The pressure relief channel is connected to the storage tank through a pipe.

7. The rail wheel diameter thermal detection device according to claim 1, characterized in that, It also includes a jetting device, which comprises multiple jet pipes fixedly connected to the mounting base and connected to an external air supply device for blowing air onto the top of the rotating platform.

8. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The regulating component is configured to automatically cut off the air pressure supply when the air pressure increases after the clamping component contacts the rail wheel.

9. The rail wheel diameter thermal detection device according to claim 8, characterized in that, The clamping assembly is configured to use residual air pressure in the telescopic cylinder to move the clamping block to clean the surface of the support frame after the track wheel is removed.

10. The rail wheel diameter thermal detection device according to claim 1, characterized in that, The storage tank is configured to store excess air pressure and assist the adjustment component in resetting.

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