Rail bottom scanning device

Abstract

The utility model relates to a rail bottom scanning device, this rail bottom scanning device is used for scanning the rail bottom of steel rail, this rail bottom scanning device includes moving mechanism, floating mechanism, probe and detection mechanism, moving mechanism is used for moving along the extension direction of steel rail, floating mechanism sets up in moving mechanism, probe is connected in the output of floating mechanism, floating mechanism is configured as drive probe to lift or press down, to make probe close or away from the rail bottom of steel rail, when probe is close to rail bottom, probe can scan rail bottom, detection mechanism is configured as detecting the obstacle of rail bottom, and detection mechanism is connected with floating mechanism communication, detection mechanism can detect obstacle and deliver detection information to floating mechanism, and floating mechanism can press down or lift probe to make probe close or away from rail bottom, effectively avoided the interference between probe and obstacle, prolonged the service life of probe, reduced equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of track flaw detection technology, and in particular to a track bottom scanning device. Background Technology

[0002] The safety of railway tracks is fundamental to ensuring smooth railway transportation and passenger safety. In order to effectively monitor and prevent rail faults and damage, the inspection and maintenance of rails is of paramount importance.

[0003] Currently, water immersion wheel flaw detectors are generally used to scan the rail base. During operation, the water immersion wheel flaw detector needs to be in contact with the rail base. The detector emits high-frequency ultrasonic pulses, and water acts as a coupling medium, eliminating air between the detector and the rail base. The ultrasonic waves enter the rail base through the water. If a defect exists inside the rail base, the ultrasonic waves will be reflected at the defect location, forming a defect wave. If there are no defects inside the rail base, the ultrasonic waves will propagate to the bottom surface of the rail base and be reflected, forming a bottom surface wave. The difference in the reflected light waves is used to determine whether there are defects inside the rail base.

[0004] However, the bottom of the rail usually has obstacles such as bolts. When the water-immersed wheel flaw detector passes over the bolts, it may be damaged, resulting in a shorter service life of the flaw detector. Utility Model Content

[0005] Therefore, it is necessary to provide a rail bottom scanning device to address the problem of damage to the flaw detector caused by obstacles on the rail bottom surface during scanning.

[0006] A track bottom scanning device, comprising:

[0007] A moving mechanism for moving along the extension direction of the rail;

[0008] A floating mechanism and a probe are provided. The floating mechanism is disposed on the moving mechanism, and the probe is connected to the output end of the floating mechanism. The floating mechanism is configured to drive the probe to lift or press down so that the probe approaches or moves away from the bottom of the rail. When the probe approaches the bottom of the rail, the probe can scan the bottom of the rail.

[0009] A detection mechanism is configured to detect obstacles at the bottom of the track, and the detection mechanism is communicatively connected to the floating mechanism.

[0010] In one embodiment, the probe is configured to scan the rail bottom when it comes into contact with the rail bottom, and the floating mechanism includes:

[0011] A driving component, the fixed end of which is connected to the moving mechanism;

[0012] The buffer assembly includes a first adapter block, a second adapter block, and an elastic element. The two ends of the elastic element are respectively connected to the first adapter block and the second adapter block. The first adapter block is connected to the output end of the drive element, and the probe is connected to the second adapter block.

[0013] In one embodiment, the floating mechanism further includes a guide assembly comprising:

[0014] A slide rail and a slider are provided, wherein the slide rail is parallel to the output end of the drive component, and the slider is slidably engaged with the slide rail. The first adapter block and the second adapter block are provided with the slider, and the moving mechanism is provided with the slide rail; or, the first adapter block and the second adapter block are provided with the slide rail, and the moving mechanism is provided with the slider.

[0015] In one embodiment, the rail is I-shaped, having a rail head, a rail web, and a rail base, with the rail base located on both sides of the rail web. The moving mechanism includes:

[0016] A movable component for moving along the extension direction of the rail;

[0017] An adjustment component is disposed on the moving part. The adjustment component has a connecting end. The distance between the connecting end and the rail web is adjustable, and the angle of the connecting end relative to the rail web is adjustable. The floating mechanism is connected to the connecting end of the adjustment component.

[0018] In one embodiment, the adjustment component includes:

[0019] A fixed beam is fixedly connected to the moving part;

[0020] An adjusting block is connected to the fixed beam in an adjustable position along a first direction, which is perpendicular to the extension direction of the rail.

[0021] A rotating component is rotatably connected to the adjusting block about the extension direction of the rail, and the floating mechanism is fixedly connected to the rotating component.

[0022] In one embodiment, one of the adjusting block and the fixed beam has a first oblong hole, and the other has a first locking hole, the first oblong hole extending along the first direction, and the adjusting assembly further includes:

[0023] A first locking element is used to pass through the first locking hole and the first waist-shaped hole to fix the adjusting block to the fixed beam.

[0024] In one embodiment, one of the rotating member and the adjusting block has a second oblong hole, and the other has a second locking hole. The second oblong hole is arc-shaped. The adjusting assembly further includes:

[0025] A second locking member is used to pass through the second locking hole and the second waist-shaped hole to fix the rotating member to the adjusting block.

[0026] In one embodiment, the probe is a phased array water immersion wheel probe, and the rail bottom scanning device further includes:

[0027] A coupling fluid mechanism is used to provide coupling fluid between the phased array immersion wheel probe and the rail base.

[0028] In one embodiment, the track bottom scanning device further includes:

[0029] A cleaning mechanism configured to clean the bottom of the rail.

[0030] In one embodiment, the cleaning mechanism includes:

[0031] A high-pressure water gun is configured to spray cleaning fluid onto the bottom of the rail;

[0032] A cleaning brush has bristles that contact the bottom of the rail, and the cleaning brush is used to clean the bottom of the rail.

[0033] The aforementioned railbed scanning device, through the cooperation of a detection mechanism and a floating mechanism, allows the detection mechanism to detect obstacles and transmit the detection information to the floating mechanism. The floating mechanism can press down or raise the probe to move the probe closer to or away from the railbed depending on the obstacle, effectively avoiding interference between the probe and the obstacle, extending the probe's service life, and reducing equipment maintenance costs. Furthermore, this railbed scanning device can automatically avoid obstacles on the railbed, allowing the probe to continuously and stably scan the railbed during movement, ensuring a comprehensive and accurate detection of any defects inside the railbed. Attached Figure Description

[0034] Figure 1 This is one of the schematic diagrams of the rail bottom scanning device and the rail provided in one embodiment of the present utility model.

[0035] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0036] Figure 3 This is a second schematic diagram of the rail bottom scanning device and the rail provided in one embodiment of the present invention.

[0037] The above figures include the following reference numerals:

[0038] 1. Moving mechanism; 11. Moving component; 12. Adjusting assembly; 121. Fixed beam; 122. Adjusting block; 123. Rotating component; 1231. Second oblong hole; 124. Second locking component;

[0039] 2. Floating mechanism; 21. Driving component; 22. Buffer assembly; 221. First adapter block; 222. Second adapter block; 223. Elastic component; 23. Guide assembly; 231. Slide rail; 232. Slider; 24. Fixing component;

[0040] 3. Probe;

[0041] 4. Testing institutions;

[0042] 5. Coupling fluid mechanism;

[0043] 6. Cleaning equipment; 61. High-pressure water gun; 62. Cleaning brush;

[0044] 1000, Rail; 10001, Rail base; 10002, Rail head; 10003, Rail web. Detailed Implementation

[0045] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] 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 or an electrical connection; 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.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0051] like Figure 1As shown, one embodiment of this application provides a rail bottom scanning device for scanning the rail bottom 10001 of a rail 1000. This rail bottom scanning device includes a moving mechanism 1, a floating mechanism 2, a probe 3, and a detection mechanism 4. The moving mechanism 1 moves along the extension direction of the rail 1000. The floating mechanism 2 is disposed on the moving mechanism 1, and the probe 3 is connected to the output end of the floating mechanism 2. The floating mechanism 2 is configured to drive the probe 3 to rise or fall, so that the probe 3 approaches or moves away from the rail bottom 10001 of the rail 1000. When the probe 3 approaches the rail bottom 10001, the probe 3 can scan the rail bottom 10001. The detection mechanism 4 is configured to detect obstacles on the rail bottom 10001, and the detection mechanism 4 is communicatively connected to the floating mechanism 2. Figure 1 , Figure 2 The Y direction in the figure represents the extension direction of rail 1000.

[0052] This railbed scanning device is moved along the extension direction of the rail 1000 by the moving mechanism 1, allowing the probe 3 to perform a comprehensive scan of the railbed 10001 along the length of the rail 1000. The detection mechanism 4 can detect in real time whether there are obstacles, such as fasteners, on the railbed 10001. The detection mechanism 4 is connected to the floating mechanism 2 and transmits the detection information to the floating mechanism 2. The floating mechanism 2 can drive the probe 3 to press down, bringing the probe 3 close to the railbed 10001 of the rail 1000. At this time, the probe 3 can scan the railbed 10001. When the detection mechanism 4 detects an obstacle on the railbed 10001 and transmits the information to the floating mechanism 2, the floating mechanism 2 drives the probe 3 to rise, moving the probe 3 away from the railbed 10001 of the rail 1000, to avoid damage to the probe 3 when passing over the obstacle. After passing the obstacle, the floating mechanism 2 drives the probe 3 to press down again to continue scanning the railbed 10001. It should be noted that when the distance between the probe 3 and the rail base 10001 is preset, the probe 3 can scan the rail base 10001. Here, the probe 3 is close to the rail base 10001, which means that the distance between the probe 3 and the rail base 10001 is less than the preset distance.

[0053] This rail bottom scanning device works in conjunction with a detection mechanism 4 and a floating mechanism 2. The detection mechanism 4 can detect obstacles and transmit the detection information to the floating mechanism 2. The floating mechanism 2 can press down or raise the probe 3 to move the probe 3 closer to or further away from the rail bottom 10001 according to the obstacle situation, effectively avoiding interference between the probe 3 and the obstacle, extending the service life of the probe 3, and reducing equipment maintenance costs. Furthermore, this rail bottom scanning device can automatically avoid obstacles on the rail bottom 10001, allowing the probe 3 to continuously and stably scan the rail bottom 10001 during movement, ensuring that it can comprehensively and accurately detect whether there are defects inside the rail bottom 10001.

[0054] Optionally, the detection mechanism 4 can be a proximity sensor, a laser rangefinder, or a visual recognition system. Any structure in the prior art capable of detecting obstacles on the track bottom 10001 can serve as the detection mechanism 4 in this embodiment, and this embodiment is not limited in this regard. It should be noted that the detection mechanism 4 can be fixed to the moving mechanism 1.

[0055] Optionally, probe 3 is a phased array immersion wheel probe. The phased array immersion wheel probe can quickly change the scanning angle and range of the ultrasonic beam through electronic scanning, thereby improving detection efficiency and shortening detection time.

[0056] Specifically, such as Figure 1 , Figure 2 As shown, this railbed scanning device also includes a coupling fluid mechanism 5, which provides coupling fluid between the phased array water immersion probe and the railbed 10001. The coupling fluid fills the tiny gaps between the phased array water immersion probe and the railbed 10001, eliminating air and allowing ultrasonic waves to be transmitted more efficiently from the phased array water immersion probe to the railbed 10001, reducing energy loss and thus obtaining a stronger echo signal and improving detection sensitivity. Furthermore, the coupling fluid acts as a lubricant, reducing direct friction between the phased array water immersion probe and the railbed 10001, and reducing the wear of the phased array water immersion probe. The coupling fluid can be water.

[0057] In some embodiments, the probe 3 is configured to scan the rail bottom 10001 when it comes into contact with it, such as... Figure 2As shown, the floating mechanism 2 includes a driving component 21 and a buffer assembly 22. The fixed end of the driving component 21 is connected to the moving mechanism 1. The buffer assembly 22 includes a first adapter block 221, a second adapter block 222, and an elastic element 223. The two ends of the elastic element 223 are respectively connected to the first adapter block 221 and the second adapter block 222. The first adapter block 221 is connected to the output end of the driving component 21, and the probe 3 is connected to the second adapter block 222. When the probe 3 needs to contact the bottom of the rail 10001 for detection, the driving component 21 is activated to drive the first adapter block 221 to move downward. Since the first adapter block 221 and the second adapter block 222 are connected through the elastic element 223, the second adapter block 222 will move downward along with the first adapter block 221, thereby causing the probe 3 connected to the second adapter block 222 to move downward until the probe 3 contacts the bottom of the rail 10001. When probe 3 comes into contact with rail base 10001, rail base 10001 generates an upward reaction force on probe 3. This reaction force is transmitted to elastic element 223 through the second adapter block 222, causing elastic element 223 to undergo elastic deformation to absorb and buffer part of the reaction force, preventing excessive force from damaging probe 3 and drive element 21. Furthermore, elastic element 223 can provide a certain preload when probe 3 comes into contact with rail base 10001, maintaining good coupling between probe 3 and rail base 10001, ensuring that ultrasonic waves are effectively transmitted from probe 3 to rail base 10001. In addition, rail base 10001 of rail 1000 may experience wear, deformation, or unevenness during use. Elastic element 223 allows probe 3 to automatically adjust according to the surface irregularities of rail base 10001, ensuring that probe 3 always maintains good contact with rail base 10001, adapting to different rail base 10001 scanning needs, and demonstrating strong applicability.

[0058] In some embodiments, the probe 3 is connected to the second adapter block 222, and the coupling fluid mechanism 5 is also connected to the second adapter block 222, so as to facilitate the supply of coupling fluid between the probe 3 and the rail bottom 10001.

[0059] It should be noted that the driving component 21 can be a motor or a cylinder. The driving structures in the prior art can all be applied to this embodiment, and this embodiment does not limit them.

[0060] In some embodiments, such as Figure 2 As shown, the floating mechanism 2 also includes a fixing member 24, which is fixed to the moving mechanism 1, and the fixed end of the driving member 21 is fixed to the fixing member 24.

[0061] Optionally, such as Figure 2As shown, the floating mechanism 2 also includes a guide assembly 23, which includes a slide rail 231 and a slider 232. The slide rail 231 is parallel to the output end of the drive member 21, and the slider 232 is slidably engaged with the slide rail 231. The first adapter block 221 and the second adapter block 222 are provided with sliders 232, and the moving mechanism 1 is provided with slide rail 231; or, the first adapter block 221 and the second adapter block 222 are provided with slide rail 231, and the moving mechanism 1 is provided with sliders 232. The guide assembly 23 provides precise guidance for the movement of the probe 3, so that the probe 3 can only move in the driving direction of the drive member 21, and will not move in other directions, avoiding detection errors caused by the probe 3 shaking or deflection, and improving the accuracy of locating the defect 10001 at the bottom of the rail.

[0062] In some embodiments, such as Figure 3 As shown, the rail 1000 is I-shaped and has a rail head 10002, a rail web 10003, and a rail base 10001. The rail base 10001 is provided on both sides of the rail web 10003. At this time, there are two floating mechanisms 2, two detection mechanisms 4, and two probes 3. The two floating mechanisms 2 are located on both sides of the rail web 10003, and the two probes 3 are respectively set on the two floating mechanisms. The two detection mechanisms respectively detect obstacles on both sides of the rail base 10001.

[0063] Specifically, such as Figure 1 , Figure 2 As shown, the moving mechanism 1 includes a moving component 11 and an adjusting component 12. The moving component 11 is used to move along the extension direction of the rail 1000. The adjusting component 12 is disposed on the moving component 11 and has a connecting end. The distance between the connecting end and the rail web 10003 is adjustable, and the angle of the connecting end relative to the rail web 10003 is adjustable. The floating mechanism 2 is connected to the connecting end of the adjusting component 12. The moving component 11 can drive the adjusting component 12, the floating mechanism 2, and the probe 3 to move along the extension direction of the rail 1000, so that the probe 3 can fully explore the rail bottom 10001. The floating mechanism 2 is connected to the connecting end of the adjusting component 12, and the distance between the connecting section and the side of the rail 1000 along its extension direction and the angle relative to the rail 1000 are adjustable. This allows the distance between the probe 3 and the side of the rail 1000 along its extension direction and the angle relative to the rail 1000 to be adjustable, so that this rail bottom scanning device can adapt to different specifications of I-beam rails 1000. Any specification of rail 1000 can be adjusted so that the probe 3 on the floating mechanism 2 can accurately abut against the rail bottom 10001, making it highly adaptable.

[0064] Optionally, such as Figure 2As shown, the adjustment assembly 12 includes a fixed beam 121, an adjustment block 122, and a rotating component 123. The fixed beam 121 is fixedly connected to the moving component 11. The adjustment block 122 is adjustable along a first direction perpendicular to the extension direction of the rail 1000 and is rotatably connected to the adjustment block 122. The floating mechanism 2 is fixedly connected to the rotating component 123. Figures 1-3 The X direction is the first direction. The fixed beam 121 serves as the base of the adjustment assembly 12 and is firmly fixed to the moving part 11 to provide a support platform for the adjustment block 122. The adjustment block 122 is adjustable along the first direction and connected to the fixed beam 121 so that the distance between the probe 3 and one side of the rail 1000 along its extension direction can be changed by adjusting the position of the adjustment block 122. The rotating part 123 is rotatably connected to the adjustment block 122 around the extension direction of the rail 1000 so that the angle of the probe 3 relative to the rail 1000 can be changed by adjusting the rotation angle of the rotating part 123.

[0065] Optionally, one of the adjusting block 122 and the fixing beam 121 has a first oblong hole, and the other has a first locking hole. The first oblong hole extends along a first direction. The adjusting assembly 12 also includes a first locking member, which passes through the first locking hole and the first oblong hole to fix the adjusting block 122 to the fixing beam 121. Figure 1 When it is necessary to adjust the position of the adjusting block 122 on the fixed beam 121, firstly, the first locking member is released, and then the adjusting block 122 is extended along the first direction. After the adjusting block 122 is adjusted to the appropriate position, the first locking member is passed through the first locking hole and the first oblong hole and locked to fix the adjusting block 122 on the fixed beam 121. Specifically, the first locking member can be a bolt or a screw.

[0066] Optionally, such as Figure 2 As shown, one of the rotating component 123 and the adjusting block 122 has a second oblong hole 1231, and the other has a second locking hole. The second oblong hole 1231 is arc-shaped. The adjusting assembly 12 also includes a second locking component 124, which passes through the second locking hole and the second oblong hole 1231 to fix the rotating component 123 to the adjusting block 122. When it is necessary to adjust the angle of the rotating component 123, the second locking component 124 is first loosened. Since the second oblong hole 1231 is arc-shaped, the rotating component 123 rotates along the arc-shaped trajectory defined by the second oblong hole 1231 with the connection point with the adjusting block 122 as the center. When the rotating component 123 rotates to the appropriate angle, the second locking component 124 passes through the second locking hole and the second oblong hole 1231 and is locked to fix the rotating component 123 to the adjusting block 122. Specifically, the second locking component 124 can be a bolt or a screw.

[0067] Optionally, such as Figure 1 , Figure 2 As shown, the rail bottom scanning device also includes a cleaning mechanism 6, which is configured to clean the rail bottom 10001. During long-term use, the rail bottom 10001 will accumulate dust, rust, oil, gravel, and other impurities. These impurities will adhere to the surface of the rail bottom 10001 and affect the scanning results. The cleaning mechanism 6 cleans the rail bottom 10001 to provide a good detection environment for the probe 3, ensuring the accuracy of the detection results. Furthermore, by setting up the cleaning mechanism 6, it can move synchronously with the probe 3, eliminating the need for additional cleaning stops and improving efficiency.

[0068] In some alternative embodiments, such as Figure 1 , Figure 2 As shown, the cleaning mechanism 6 includes a high-pressure water gun 61 and a cleaning brush 62. The high-pressure water gun 61 is configured to spray cleaning fluid onto the rail base 10001. The cleaning brush 62 has bristles that contact the rail base 10001 and is used to clean the rail base 10001. The high-pressure water gun 61 sprays cleaning fluid onto the rail base 10001, using its impact force to remove dust and other impurities adhering to the surface of the rail base 10001. The cleaning brush 62 can clean the surface of the rail base 10001, further cleaning away any fine impurities, moisture, and stains that are difficult to rinse away after the high-pressure water gun 61 has rinsed the surface.

[0069] Specifically, such as Figure 1 , Figure 2 As shown, along the forward direction of this rail bottom scanning device, the cleaning brush 62 is disposed on the second adapter block 222 and located in front of the probe 3, so that the cleaning brush 62 can move synchronously with the probe 3. The high-pressure water gun 61 is disposed on the moving part 11 and located in front of the cleaning brush 62, so that the cleaning brush 62 can sweep the rail bottom 10001 sprayed by the high-pressure water gun 61.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A track bottom scanning device, characterized in that, include: The moving mechanism (1) is used to move along the extension direction of the rail (1000); A floating mechanism (2) and a probe (3) are provided. The floating mechanism (2) is disposed on the moving mechanism (1). The probe (3) is connected to the output end of the floating mechanism (2). The floating mechanism (2) is configured to drive the probe (3) to lift or press down so that the probe (3) is close to or away from the rail bottom (10001) of the rail (1000). When the probe (3) is close to the rail bottom (10001), the probe (3) can scan the rail bottom (10001). The detection mechanism (4) is configured to detect obstacles on the bottom of the track (10001), and the detection mechanism (4) is communicatively connected to the floating mechanism (2).

2. The track bottom scanning device according to claim 1, characterized in that, The probe (3) is configured to scan the rail bottom (10001) when it comes into contact with the rail bottom (10001), and the floating mechanism (2) includes: The driving component (21) has its fixed end connected to the moving mechanism (1); The buffer assembly (22) includes a first adapter block (221), a second adapter block (222), and an elastic element (223). The two ends of the elastic element (223) are respectively connected to the first adapter block (221) and the second adapter block (222). The first adapter block (221) is connected to the output end of the drive element (21), and the probe (3) is connected to the second adapter block (222).

3. The track bottom scanning device according to claim 2, characterized in that, The floating mechanism (2) further includes a guide assembly (23), which includes: A slide rail (231) and a slider (232) are provided. The slide rail (231) is parallel to the output end of the drive unit (21). The slider (232) is slidably engaged with the slide rail (231). The first adapter block (221) and the second adapter block (222) are provided with the slider (232). The moving mechanism (1) is provided with the slide rail (231). Alternatively, the first adapter block (221) and the second adapter block (222) are provided with the slide rail (231). The moving mechanism (1) is provided with the slider (232).

4. The track bottom scanning device according to claim 1, characterized in that, The rail (1000) is I-shaped, and the rail (1000) has a rail head (10002), a rail web (10003), and a rail base (10001). The rail base (10001) is provided on both sides of the rail web. The moving mechanism (1) includes: A movable component (11) is used to move along the extension direction of the rail (1000); An adjustment component (12) is disposed on the moving part (11). The adjustment component (12) has a connecting end. The distance between the connecting end and the rail web (10003) is adjustable, and the angle of the connecting end relative to the rail web (10003) is adjustable. The floating mechanism (2) is connected to the connecting end of the adjustment component (12).

5. The track bottom scanning device according to claim 4, characterized in that, The adjustment component (12) includes: A fixed beam (121) is fixedly connected to the movable component (11); An adjusting block (122) is connected to the fixed beam (121) in a first direction that is perpendicular to the extension direction of the rail (1000). The rotating component (123) is rotatably connected to the adjusting block (122) about the extension direction of the rail (1000), and the floating mechanism (2) is fixedly connected to the rotating component (123).

6. The track bottom scanning device according to claim 5, characterized in that, One of the adjusting block (122) and the fixed beam (121) has a first waist-shaped hole, and the other has a first locking hole. The first waist-shaped hole extends along the first direction. The adjusting assembly (12) further includes: A first locking member is used to pass through the first locking hole and the first waist-shaped hole to fix the adjusting block (122) to the fixing beam (121).

7. The track bottom scanning device according to claim 5, characterized in that, One of the rotating component (123) and the adjusting block (122) has a second oblong hole (1231), and the other has a second locking hole. The second oblong hole (1231) is arc-shaped. The adjusting assembly (12) also includes: The second locking member (124) is used to pass through the second locking hole and the second waist-shaped hole (1231) to fix the rotating member (123) to the adjusting block (122).

8. The track bottom scanning device according to any one of claims 1-7, characterized in that, The probe (3) is a phased array water immersion wheel probe, and the rail bottom scanning device also includes: The coupling fluid mechanism (5) is used to provide coupling fluid between the phased array immersion wheel probe and the rail base (10001).

9. The track bottom scanning device according to any one of claims 1-7, characterized in that, The railbed scanning device also includes: Cleaning mechanism (6), which is configured to clean the rail bottom (10001).

10. The track bottom scanning device according to claim 9, characterized in that, The cleaning mechanism (6) includes: A high-pressure water gun (61) is configured to spray cleaning fluid onto the rail bottom (10001); A cleaning brush (62) has bristles that contact the bottom of the rail (10001) and is used to clean the bottom of the rail (10001).

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