Rail flaw detection vehicle

Abstract

This application relates to a rail flaw detection vehicle, which includes: a frame; a wheel assembly disposed on one side of the frame along a first direction; the wheel assembly including a plurality of wheels arranged along a second direction, the wheels being rotatably connected to the frame and configured to rotate about an axis parallel to a third direction; a detection assembly including an ultrasonic probe, the ultrasonic probe being located on the side of the frame near the wheels and connected to the frame; the ultrasonic probe being used to emit ultrasonic waves toward the rail and receive ultrasonic waves reflected by the rail; a container disposed on the frame; the container containing a coupling fluid; a suction pump disposed on the frame; the inlet of the suction pump communicating with the container; a plurality of outlet pipes disposed on the frame, the inlets of the outlet pipes communicating with the outlets of the suction pump; the outlets of the outlet pipes facing the rail. In summary, the rail flaw detection vehicle of this embodiment, by providing a suction pump, can increase the flow rate of the coupling fluid in the outlet pipes, ensuring that the flow rate of the coupling fluid in each outlet pipe remains stable.

Description

Technical Field

[0001] This application relates to the field of rail flaw detection technology, and in particular to a rail flaw detection vehicle. Background Technology

[0002] A rail flaw detection vehicle is a specialized vehicle used to detect fatigue and welding defects in the rail head and web areas, as well as damage such as rail base corrosion, crescent-shaped spalling, and rail head crushing. In related technologies, the rail flaw detection vehicle is equipped with an ultrasonic probe that emits ultrasonic waves towards the rail to perform ultrasonic testing, thereby accurately identifying internal defects in the rail.

[0003] Because ultrasound travels slowly in air and attenuates too quickly, a coupling agent needs to be added between the rail surface and the probe. This coupling agent is typically pure water or distilled water. In related technologies, the rail flaw detection vehicle is equipped with a water tank. Water from the tank is sprayed onto the rail through multiple outlet pipes. However, the water flow rate and velocity are uneven as the water passes through the outlet pipes, resulting in the water not being evenly sprayed onto the rail surface. Utility Model Content

[0004] Therefore, it is necessary to propose a rail flaw detection vehicle to address the current problem of low flow rate and uneven flow velocity of water flowing through the outlet pipe in the water tank.

[0005] A rail flaw detection vehicle, comprising:

[0006] Frame;

[0007] A wheel assembly is disposed on one side of the frame along a first direction; the wheel assembly includes a plurality of wheels arranged along a second direction, the wheels being rotatably connected to the frame and configured to rotate about an axis parallel to a third direction; the first direction, the second direction, and the third direction are arranged to intersect each other in pairs;

[0008] The detection assembly includes at least one ultrasonic probe located on the side of the frame near the wheel and connected to the frame; the ultrasonic probe is used to emit ultrasonic waves toward the rail and to receive ultrasonic waves reflected by the rail.

[0009] A receiving box is disposed on the vehicle frame; the receiving box contains coupling fluid.

[0010] A suction pump is installed on the vehicle frame; the inlet of the suction pump is connected to the container.

[0011] Multiple liquid outlet pipes are installed on the vehicle frame, with the inlet of each liquid outlet pipe connected to the outlet of the suction pump; the outlet of each liquid outlet pipe faces the rail.

[0012] In one embodiment, the outlet pipe is provided with a regulating valve; the regulating valve is used to open or close the outlet pipe.

[0013] In one embodiment, the rail flaw detection vehicle includes a transmission pipe; the inlet of the transmission pipe is connected to the outlet of the suction pump, and the outlet of the transmission pipe is connected to the inlet of each outlet pipe.

[0014] In one embodiment, the rail flaw detection vehicle includes a suction pipe; the inlet of the suction pipe is connected to the inner cavity of the container, and the outlet of the suction pipe is connected to the inlet of the suction pump.

[0015] In one embodiment, the rail flaw detection vehicle includes a support assembly; the support assembly is disposed on the side of the frame away from the wheel assembly along the first direction; the support assembly includes two support frames arranged at intervals; the receiving box is located between the two support frames;

[0016] In this configuration, each of the two support frames has a locking part on the side closest to the other support frame; the receiving box has locking blocks on opposite sides along the arrangement direction of the two support frames; each of the two locking blocks corresponds to one of the two locking parts, and each locking block engages with the corresponding locking part; or, in this configuration, each of the two support frames has a locking block on the side closest to the other support frame; the receiving box has locking parts on opposite sides along the arrangement direction of the two support frames; each of the two locking blocks corresponds to one of the two locking parts, and each locking block engages with the corresponding locking part.

[0017] In one embodiment, the snap-fit ​​portion on each of the support frames is configured as a through hole that extends through the support frame along the arrangement direction of the two support frames.

[0018] In one embodiment, each of the two support frames has a plurality of protrusions on the side of the support frame closest to the other support frame; the receiving box contacts the plurality of protrusions in the two support frames on opposite sides along the arrangement direction of the two support frames.

[0019] Alternatively, the receiving box may have multiple protrusions on opposite sides along the arrangement direction of the two support frames; the two support frames correspond one-to-one with the opposite sides of the receiving box along the arrangement direction of the two support frames; each of the multiple protrusions on each side of the receiving box along the arrangement direction of the two support frames is in contact with the corresponding support frame.

[0020] In one embodiment, the rail flaw detection vehicle includes at least one connector;

[0021] The connector includes a fixed part and a rotating part; the fixed part is slidably connected to the vehicle frame along the third direction; the rotating part is rotatably connected to the fixed part and configured to rotate about an axis parallel to the third direction; the ultrasonic probe is detachably connected to the rotating part.

[0022] In one embodiment, the detection component includes a plurality of ultrasonic probes arranged along the second direction;

[0023] In the plurality of wheels arranged along the second direction, at least one ultrasonic probe is provided between any two adjacent wheels.

[0024] In one embodiment, the rail flaw detection vehicle includes a cleaning brush; the cleaning brush is disposed on one side of the vehicle frame along the second direction; the bristles of the cleaning brush extend along the first direction; the cleaning brush is used to clean the surface of the rail.

[0025] In this embodiment, the rail flaw detection vehicle has wheels positioned on the rail to be inspected. The wheels rotate around an axis parallel to a third direction, causing the frame to move relative to the rail in a second direction. The detection components, the container, and multiple outlet pipes on the frame move synchronously under the drive of the frame. During this process, a suction pump draws the coupling fluid contained in the container. The coupling fluid enters the suction pump through its inlet. The coupling fluid leaves the suction pump through its outlet and then enters the outlet pipe through its inlet. After entering the outlet pipe, the coupling fluid flows within the outlet pipe under its transmission and is finally sprayed out from the outlet pipe toward the rail. The sprayed coupling fluid ultimately adheres to the surface of the rail at the location to be inspected.

[0026] The coupling fluid sprayed onto the rail surface serves two purposes: firstly, it removes impurities and cleans the rail surface; secondly, it fills the gap between the rail surface and the ultrasonic probe. By filling this gap, a layer of coupling fluid adheres to the rail surface, reducing the reflection of ultrasonic waves directed at it and ensuring that most of the waves penetrate the rail. Once inside the rail, the waves encounter internal damage and are reflected back into the coupling fluid, ultimately reaching the ultrasonic probe. Because most of the ultrasonic waves penetrate the rail, the ultrasonic probe provides higher quality detection of internal rail damage.

[0027] It is important to emphasize that the suction capacity of the suction pump is related to its power. Increasing the pump's power increases its suction capacity. A higher suction capacity results in a higher flow velocity of the coupling fluid entering the pump. Increasing the pump's power further increases the flow velocity of the coupling fluid entering the pump, which in turn increases the flow velocity of the coupling fluid exiting the pump's outlet. This ultimately increases the flow velocity of the coupling fluid entering the outlet pipe, resolving the issue of low flow velocity in the outlet pipe. Furthermore, since the flow velocity of the coupling fluid entering the pump is controlled by its power, maintaining a stable pump power ensures a stable flow velocity in each outlet pipe, thus resolving uneven flow rates and ensuring uniform spraying of the coupling fluid onto the rail surface.

[0028] In summary, the rail flaw detection vehicle in this embodiment can increase the flow rate of the coupling fluid entering the outlet pipe by setting a suction pump, thus ensuring that the flow rate of the coupling fluid in each outlet pipe is stable. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a rail flaw detection vehicle in one embodiment of this application.

[0031] Figure 2 for Figure 1 The image shows a magnified view of the structure at point A in the rail flaw detection vehicle.

[0032] Figure 3 for Figure 1 The diagram shows the snap-fit ​​structure between the support frame and the housing box in the rail flaw detection vehicle.

[0033] Figure 4 for Figure 3 A schematic diagram of the structure of the container.

[0034] Figure label:

[0035] 100 rail flaw detection vehicles;

[0036] Frame size 110;

[0037] Wheel assembly 120, wheel 121;

[0038] Detection component 130, ultrasonic probe 131;

[0039] Storage box 140, card block 141;

[0040] 150 suction pump;

[0041] Discharge pipe 160, regulating valve 161;

[0042] Transmission tube 170;

[0043] 180mm pipette;

[0044] Support component 190, support frame 191, snap-fit ​​part 191-1, boss 191-2;

[0045] Connector 210, fixing part 211, rotating part 212;

[0046] Cleaning brush 220, bristle brush 221;

[0047] Controller 230;

[0048] Mounting base 240;

[0049] Rotating joint 250, first rotating part 251, second rotating part 252;

[0050] Interactive component 260. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0056] It should be noted that if 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. If 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. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0057] Please see Figure 1 and Figure 2 , Figure 1A schematic diagram of a rail flaw detection vehicle according to an embodiment of this application is shown. An embodiment of this application provides a rail flaw detection vehicle 100, including: a frame 110, a wheel assembly 120, a detection assembly 130, a receiving box 140, and multiple liquid outlet pipes 160. The wheel assembly 120 is disposed on one side of the frame 110 along a first direction; the wheel assembly 120 includes multiple wheels 121 arranged along a second direction, the wheels 121 being rotatably connected to the frame 110 and configured to rotate about an axis parallel to a third direction; the first direction, the second direction, and the third direction are arranged in pairs. The detection assembly 130 includes at least one ultrasonic probe 131, the ultrasonic probe 131 being located on the side of the frame 110 near the wheels 121 and connected to the frame 110; the ultrasonic probe 131 is used to emit ultrasonic waves toward the rail and receive ultrasonic waves reflected by the rail. The receiving box 140 is disposed on the frame 110; the receiving box 140 contains coupling fluid. A suction pump 150 is mounted on the frame 110; the inlet of the suction pump 150 is connected to the container 140. Multiple outlet pipes 160 are mounted on the frame 110, and the inlets of the outlet pipes 160 are connected to the outlets of the suction pump 150; the outlets of the outlet pipes 160 face the rails (not shown in the figure).

[0058] In this embodiment, the rail flaw detection vehicle 100 has wheels 121 positioned on the rail to be inspected. The wheels 121 rotate around an axis parallel to a third direction, thereby driving the frame 110 to move relative to the rail in a second direction. The detection components 130, the receiving box 140, and the multiple liquid outlet pipes 160 on the frame 110 move synchronously under the drive of the frame 110. During this process, the suction pump 150 draws the coupling fluid contained in the container 140. The coupling fluid enters the suction pump 150 through the inlet. The coupling fluid that has entered the suction pump 150 leaves the suction pump 150 through the outlet and then enters the outlet pipe 160 through the inlet. After entering the outlet pipe 160, the coupling fluid flows within the outlet pipe 160 under the transmission of the outlet pipe 160 and finally sprays out from the outlet pipe 160 toward the rail. The sprayed coupling fluid finally adheres to the surface of the rail at the location to be inspected.

[0059] The coupling fluid sprayed onto the rail surface serves two purposes: firstly, it removes impurities and cleans the rail surface; secondly, it fills the gap between the rail surface and the ultrasonic probe 131. By filling this gap, a layer of coupling fluid adheres to the rail surface, reducing the reflection of ultrasonic waves directed at it and ensuring that most of the waves penetrate the rail. Once inside the rail, the waves encounter internal damage and are reflected back into the coupling fluid, ultimately being received by the ultrasonic probe 131. Because most of the ultrasonic waves penetrate the rail, the ultrasonic probe 131 achieves higher accuracy in detecting internal rail damage.

[0060] It is important to emphasize that the suction capacity of the suction pump 150 is related to its power. Increasing the power of the suction pump 150 increases its suction capacity. A higher suction capacity results in a higher flow velocity of the coupling fluid entering the suction pump 150. Increasing the power of the suction pump 150 increases the flow velocity of the coupling fluid entering it, which in turn increases the flow velocity of the coupling fluid exiting the suction pump 150's outlet, ultimately increasing the flow velocity of the coupling fluid entering the outlet pipe 160 and resolving the issue of low flow velocity in the outlet pipe 160. Furthermore, since the flow velocity of the coupling fluid entering the suction pump 150 is controlled by its power, maintaining a stable power of the suction pump 150 ensures a stable flow velocity of the coupling fluid in each outlet pipe 160, thus resolving the issue of uneven flow velocity and ensuring uniform spraying of the coupling fluid onto the rail surface.

[0061] In summary, the rail flaw detection vehicle 100 in this embodiment, by setting up a suction pump 150, can increase the flow rate of the coupling fluid entering the outlet pipe 160, ensuring that the flow rate of the coupling fluid in each outlet pipe 160 is in a stable state.

[0062] Please see Figure 1 and Figure 2 In some embodiments, the outlet pipe 160 is provided with a regulating valve 161; the regulating valve 161 is used to open or close the outlet pipe 160.

[0063] In this embodiment, since the outlet pipe 160 is equipped with a regulating valve 161, the degree of conduction of the outlet pipe 160 can be adjusted by changing the regulating valve 161, thereby changing the flow rate of the coupling fluid sprayed from the outlet of the outlet pipe 160, so as to ensure that the coupling fluid is sprayed onto the rail surface stably at the target flow rate.

[0064] It should be noted that the coupling fluid includes any of the following: purified water, tap water, and distilled water.

[0065] In some embodiments, the regulating valve 161 may also be configured as an electronic valve; the suction pump 150 may also be configured as an electronic pump.

[0066] Please see Figure 1 and Figure 2 In some embodiments, the rail flaw detection vehicle 100 includes a transmission pipe 170; the inlet of the transmission pipe 170 is connected to the outlet of the suction pump 150, and the outlet of the transmission pipe 170 is connected to the inlet of each outlet pipe 160.

[0067] In this embodiment, under the suction action of the suction pump 150, the coupling fluid enters the suction pump 150 and flows out of the suction pump 150 from the outlet. Then, it enters the transmission pipe 170 from the inlet. Then, it flows out of the transmission pipe 170 from the outlet and enters the outlet pipe 160 through the inlet. Finally, it is sprayed onto the surface of the rail from the outlet of the outlet pipe 160.

[0068] It should be noted that the transmission tube 170 includes, but is not limited to, a transparent flexible tube.

[0069] Please see Figure 1 and Figure 2 In some embodiments, the rail flaw detection vehicle 100 includes a suction pipe 180; the inlet of the suction pipe 180 is connected to the inner cavity of the container 140, and the outlet of the suction pipe 180 is connected to the inlet of the suction pump 150.

[0070] In this embodiment, under the suction action of the suction pump 150, the coupling fluid enters the suction pipe 180 from the inner cavity of the receiving tank 140 through the inlet of the suction pipe 180; then it flows out of the suction pipe 180 from the outlet and enters the suction pump 150 through the inlet of the suction pump 150.

[0071] Please see Figures 2 to 4 In some embodiments, the rail flaw detection vehicle 100 includes a support assembly 190; the support assembly 190 is disposed on the side of the frame 110 away from the wheel assembly 120 along a first direction; the support assembly 190 includes two support frames 191 arranged at intervals; and a housing 140 is located between the two support frames 191.

[0072] Among them, each of the two support frames 191 has a snap-fit ​​part 191-1 on the side of the support frame 191 closest to the other support frame 191; the receiving box 140 has snap-fit ​​blocks 141 on opposite sides along the arrangement direction of the two support frames 191; the two snap-fit ​​blocks 141 correspond one-to-one with the two snap-fit ​​parts 191-1, and each snap-fit ​​block 141 snaps into the corresponding snap-fit ​​part 191-1.

[0073] Alternatively, in the two support frames 191, each support frame 191 has a locking block 141 on the side near the other support frame 191; the receiving box 140 has locking parts 191-1 on opposite sides along the arrangement direction of the two support frames 191; the two locking blocks 141 correspond one-to-one with the two locking parts 191-1, and each locking block 141 locks into the corresponding locking part 191-1.

[0074] In this embodiment, the container 140 is sandwiched between two support frames 191. By engaging each locking block 141 with the corresponding locking part 191-1, the container 140 can be fixed on the support frame 191, preventing the container 140 from shaking in the first direction, the second direction or the third direction when the wheel 121 rotates.

[0075] In some embodiments, the rail flaw detection vehicle 100 includes a controller 230 located on the side of the housing 140 away from the frame 110 along a first direction, and the controller 230 is clamped between two support frames 191; the controller 230 includes a control circuit (not shown) and a signal receiving circuit (not shown) that are electrically connected to each other, and the signal receiving circuit is communicatively connected to the ultrasonic probe 131 to receive the detection results of the ultrasonic probe 131.

[0076] In this embodiment, the controller 230 receives the detection results of the ultrasonic probe 131 on the internal damage of the rail through the signal receiving circuit, and transmits the received detection results to the control circuit of the controller 230.

[0077] In some embodiments, the rail flaw detection vehicle 100 includes a fixed base 240, a rotating joint 250, and an interaction component 260. The fixed base 240 is located on the side of the controller 230 away from the frame 110 along a first direction, and the rotating joint 250 is located on the side of the fixed base 240 away from the controller 230. The rotating joint 250 includes a first rotating portion 251; the first rotating portion 251 is rotatably connected to the fixed base 240 and configured to rotate relative to the fixed base 240 about an axis parallel to the first direction; a second rotating portion 252 is connected to the interaction component 260. The controller 230 includes a signal transmitting circuit (not shown), which is electrically connected to a control circuit. The signal transmitting circuit has multiple signal transmitting terminals, some of which are communicatively connected to the suction pump 150 and the regulating valve 161; other portions of the transmitting terminals are communicatively connected to the interaction component 260.

[0078] In this embodiment, the controller 230 transmits signals to different signal transmission terminals of the signal transmission circuit through the control circuit to start or stop the suction pump 150 and the regulating valve 161, and transmits the detection results of the ultrasonic probe 131 on the internal damage of the rail to the interactive component 260.

[0079] It should be noted that the interactive components 260 include, but are not limited to, laptops, mobile phones, and monitors.

[0080] In some embodiments, the rotating joint 250 includes a second rotating portion 252, which is rotatably connected to the first rotating portion 251 and configured to rotate relative to the first rotating portion 251 about an axis parallel to a third direction. An interaction component 260 is disposed on the second rotating portion 252.

[0081] Please see Figure 3 and Figure 4 In some embodiments, each of the two support frames 191 has a plurality of protrusions 191-2 on one side near the other support frame 191; the receiving box 140 contacts the plurality of protrusions 191-2 in the two support frames 191 on opposite sides along the arrangement direction of the two support frames 191.

[0082] Alternatively, the container 140 may have multiple protrusions 191-2 on opposite sides along the arrangement direction of the two support frames 191; the two support frames 191 correspond one-to-one with the opposite sides of the container 140 along the arrangement direction of the two support frames 191; the multiple protrusions 191-2 on each side of the container 140 along the arrangement direction of the two support frames 191 are in contact with the corresponding support frame 191.

[0083] In this embodiment, each support frame 191 is provided with a plurality of protrusions 191-2 on one side near the other support frame 191; when the receiving box 140 contacts the plurality of protrusions 191-2 in the two support frames 191 on opposite sides along the arrangement direction of the two support frames 191 respectively; with the help of the plurality of protrusions 191-2 on the two support frames 191, pressure can be applied to the opposite sides of the receiving box 140 along the arrangement direction of the two support frames 191, thereby clamping the receiving box 140 between the two support frames 191 and preventing the receiving box 140 from shaking during the rotation of the wheel 121.

[0084] When the receiving box 140 is provided with multiple protrusions 191-2 on opposite sides along the arrangement direction of the two support frames 191; the two support frames 191 correspond one-to-one with the opposite sides of the receiving box 140 along the arrangement direction of the two support frames 191; when the multiple protrusions 191-2 on each side of the receiving box 140 along the arrangement direction of the two support frames 191 are in contact with the corresponding support frame 191; the pressure applied by the two support frames 191 to the opposite sides of the receiving box 140 along the arrangement direction of the two support frames 191 will become greater, further clamping the receiving box 140 between the two support frames 191, preventing the receiving box 140 from shaking during the rotation of the wheel 121.

[0085] Please see Figure 1 and Figure 2In some embodiments, the rail flaw detection vehicle 100 includes at least one connector 210; the connector 210 includes a fixed part 211 and a rotating part 212; the fixed part 211 is slidably connected to the frame 110 along a third direction; the rotating part 212 is rotatably connected to the fixed part 211 and configured to rotate about an axis parallel to the third direction; the ultrasonic probe 131 is detachably connected to the rotating part 212.

[0086] In this embodiment, by pushing the fixed part 211 to slide relative to the frame 110 along a third direction, the rotating part 212 is driven to move relative to the frame 110 along a third direction, thereby causing the ultrasonic probe 131 connected to the rotating part 212 to move synchronously, ensuring that the distances from the ultrasonic probe 131 to the opposite sides of the frame 110 along the third direction are equal. The rotating part 212 is rotatably connected to the fixed part 211 and configured to rotate about an axis parallel to the third direction, so that the ultrasonic probe 131, driven by the rotating part 212, rotates about an axis parallel to the third direction, thereby moving closer to or away from the surface of the rail.

[0087] Please see Figure 1 and Figure 2 In some embodiments, the detection component 130 includes a plurality of ultrasonic probes 131 arranged along a second direction. Among the plurality of wheels 121 arranged along the second direction, at least one ultrasonic probe 131 is provided between any two adjacent wheels 121.

[0088] In this embodiment, by arranging multiple ultrasonic probes 131 along the second direction, on the one hand, the length of rail detected by the detection component 130 per unit time can be increased; on the other hand, it can ensure that the rail surface at the same location is detected by multiple different ultrasonic probes 131, thereby reducing the detection error caused by the failure of the ultrasonic probe 131 and improving the accuracy of detecting internal defects in the rail.

[0089] In some embodiments, the rail flaw detection vehicle 100 includes a plurality of connectors 210, and the detection assembly 130 includes a plurality of ultrasonic probes 131, with each connector 210 corresponding to one of the plurality of ultrasonic probes 131.

[0090] Please see Figure 1 and Figure 2 In some embodiments, the rail flaw detection vehicle 100 includes a cleaning brush 220; the cleaning brush 220 is disposed on one side of the frame 110 along a second direction; the bristles 221 of the cleaning brush 220 extend along a first direction; the cleaning brush 220 is used to clean the surface of the rail.

[0091] In this embodiment, the bristles 221 of the cleaning brush 220 perform preliminary cleaning of impurities on the rail surface, and the coupling liquid sprayed onto the rail surface performs secondary cleaning of impurities on the rail surface; by cleaning the rail surface twice, the cleanliness of the rail surface can be improved, and the impact of impurities on the rail surface on the operation of the ultrasonic probe 131 can be reduced.

[0092] 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.

[0093] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rail flaw detection vehicle, characterized in that, The rail flaw detection vehicle includes: Frame; A wheel assembly is disposed on one side of the frame along a first direction; the wheel assembly includes a plurality of wheels arranged along a second direction, the wheels being rotatably connected to the frame and configured to rotate about an axis parallel to a third direction; the first direction, the second direction, and the third direction are arranged to intersect each other in pairs; The detection assembly includes at least one ultrasonic probe located on the side of the frame near the wheel and connected to the frame; the ultrasonic probe is used to emit ultrasonic waves toward the rail and to receive ultrasonic waves reflected by the rail. A receiving box is disposed on the vehicle frame; the receiving box contains coupling fluid. A suction pump is installed on the vehicle frame; the inlet of the suction pump is connected to the container. Multiple liquid outlet pipes are installed on the vehicle frame, with the inlet of each liquid outlet pipe connected to the outlet of the suction pump; the outlet of each liquid outlet pipe faces the rail.

2. The rail flaw detection vehicle according to claim 1, characterized in that, The outlet pipe is equipped with a regulating valve; the regulating valve is used to open or close the outlet pipe.

3. The rail flaw detection vehicle according to claim 1 or 2, characterized in that, The rail flaw detection vehicle includes a transmission pipe; the inlet of the transmission pipe is connected to the outlet of the suction pump, and the outlet of the transmission pipe is connected to the inlet of each outlet pipe.

4. The rail flaw detection vehicle according to claim 1, characterized in that, The rail flaw detection vehicle includes a suction pipe; the inlet of the suction pipe is connected to the inner cavity of the container, and the outlet of the suction pipe is connected to the inlet of the suction pump.

5. The rail flaw detection vehicle according to claim 1, characterized in that, The rail flaw detection vehicle includes a support assembly; the support assembly is disposed on the side of the vehicle frame away from the wheel assembly along the first direction; the support assembly includes two support frames arranged at intervals; the receiving box is located between the two support frames; In this configuration, each of the two support frames has a locking part on the side closest to the other support frame; the receiving box has locking blocks on opposite sides along the arrangement direction of the two support frames; each of the two locking blocks corresponds to one of the two locking parts, and each locking block engages with the corresponding locking part; or, in this configuration, each of the two support frames has a locking block on the side closest to the other support frame; the receiving box has locking parts on opposite sides along the arrangement direction of the two support frames; each of the two locking blocks corresponds to one of the two locking parts, and each locking block engages with the corresponding locking part.

6. The rail flaw detection vehicle according to claim 5, characterized in that, Each of the support frames has a snap-fit ​​portion configured as a through hole that extends through the support frame along the arrangement direction of the two support frames.

7. The rail flaw detection vehicle according to claim 5, characterized in that, In the two support frames, each support frame has multiple protrusions on the side closest to the other support frame; the receiving box contacts the multiple protrusions in the two support frames on opposite sides along the arrangement direction of the two support frames respectively; Alternatively, the receiving box may have multiple protrusions on opposite sides along the arrangement direction of the two support frames; the two support frames correspond one-to-one with the opposite sides of the receiving box along the arrangement direction of the two support frames; each of the multiple protrusions on each side of the receiving box along the arrangement direction of the two support frames is in contact with the corresponding support frame.

8. The rail flaw detection vehicle according to claim 1, characterized in that, The rail flaw detection vehicle includes at least one connecting component; The connector includes a fixed part and a rotating part; the fixed part is slidably connected to the vehicle frame along the third direction; the rotating part is rotatably connected to the fixed part and configured to rotate about an axis parallel to the third direction; the ultrasonic probe is detachably connected to the rotating part.

9. The rail flaw detection vehicle according to claim 1, characterized in that, The detection component includes a plurality of ultrasonic probes, which are arranged along the second direction; In the plurality of wheels arranged along the second direction, at least one ultrasonic probe is provided between any two adjacent wheels.

10. The rail flaw detection vehicle according to claim 1, characterized in that, The rail flaw detection vehicle includes a cleaning brush; the cleaning brush is disposed on one side of the vehicle frame along the second direction; the bristles of the cleaning brush extend along the first direction; the cleaning brush is used to clean the surface of the rail.

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