Probe wheel mechanism and double-track flaw detection vehicle

Abstract

The application discloses a probe wheel device, which comprises a main support mechanism, a probe wheel mechanism and a centering mechanism. The main support mechanism comprises a first frame body and walking wheels. The walking wheels are connected to the two ends of the first frame body. The centering mechanism comprises a centering fixed plate and small rollers. The centering fixed plate is connected to the first frame body and can move along the axial direction of the probe wheel mechanism. The small rollers are connected to the centering fixed plate and located on the side of the walking wheels. The probe wheel mechanism is connected to the centering fixed plate and a double-track flaw detection vehicle adopting the probe wheel device. The probe wheel device has the advantages that the friction force is small, the noise is small, the electric driving parts are reduced, the whole device is more light and flexible, the rapid moving, the up and down of the tracks can be achieved, and the better the flexibility, the better the centering effect in the movement.

Description

TECHNICAL FIELD

[0001] The present application relates to a rail flaw detection equipment, in particular to a probe wheel mechanism. BACKGROUND

[0002] At present, the rail flaw detection in China mainly uses ultrasonic wheel probe to detect the rail, and the wheel probe must always be in the middle of the rail, and the incident point of the ultrasonic wave must be at the center of the rail surface, so that the detection effect is best. Since the track gauge of the rail often changes, if the wheel probe is simply fixed on the rail flaw detection vehicle, the wheel probe will deviate from the center line of the rail during the running of the rail flaw detection vehicle, and therefore a device capable of automatically adjusting the wheel probe during the running of the rail flaw detection vehicle must be designed to always keep the wheel probe on the center line of the rail.

[0003] Chinese patent No. CN206114598U discloses a rail flaw detection vehicle wheel probe support, which comprises a fixed frame, a pair of walking wheels, a water wheel, a water wheel support, a pair of parallel water wheel support slides, a spring and a pair of parallel walking wheel slides fixed at the front and rear ends of the fixed frame. The central shaft of the walking wheel is connected with the second axial sleeve above it through a connecting plate, the second axial sleeve is sleeved on the walking wheel slide, and the second axial sleeve and the side surface of the fixed frame are provided with a spring. The spring directly provides a driving force for the walking wheel, so that the flange of the walking wheel tightly abuts against the rail, the resistance is relatively large, and the overall parts are many, resulting in large noise, heavy weight and high cost.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be taken as admitting that such information is prior art with respect to the present application. SUMMARY

[0005] The technical problem to be solved by the present application is how to solve the problem that the walking wheel in the current probe wheel mechanism tightly abuts against the rail, resulting in large friction, large noise, large pushing resistance and low flexibility during running.

[0006] The present application solves the above technical problems by the following technical means:

[0007] The probe wheel device comprises a main support mechanism, a probe wheel mechanism and a centering mechanism. The main support mechanism comprises a first frame body and a walking wheel, the walking wheel is connected to the two ends of the first frame body, the centering mechanism comprises a centering fixed plate and a small roller, the centering fixed plate is connected to the first frame body and can move axially along the probe wheel mechanism, the small roller is connected to the centering fixed plate and located on the side of the walking wheel, and the probe wheel mechanism is connected to the centering fixed plate.

[0008] In use, the main support mechanism is connected with the flaw detection vehicle, the walking wheels and the flaw detection wheel mechanism are located on the rail, and the flaw detection wheel mechanism detects the rail; in the process, the walking wheels are fixedly arranged, and the centering mechanism can move along the axial direction of the flaw detection wheel mechanism, that is, the small rollers can move in the axial direction and always keep rolling friction with the side surface of the rail, the walking wheels are no longer subjected to the axial thrust, and thus the friction is small and the noise is small; meanwhile, the electric driving parts are reduced, the whole is more light, and the light and flexible structure can meet the requirements of rapid moving, up and down rails, and the better the flexibility, the better the centering effect in movement.

[0009] Preferably, the flaw detection wheel mechanism comprises a flaw detection wheel body, a flaw detection wheel sleeve, a flaw detection wheel frame, an angle adjusting assembly, an inclination angle adjusting assembly and a centering adjusting assembly, two ends of the flaw detection wheel frame are connected with two ends of the centering fixed plate, one end or both ends of the flaw detection wheel sleeve are connected with the flaw detection wheel frame through the angle adjusting assembly, both ends of a rotating shaft of the flaw detection wheel body are connected with the flaw detection wheel sleeve, one end or both ends of the flaw detection wheel body are connected with the inclination angle adjusting assembly and the centering adjusting assembly.

[0010] Preferably, the flaw detection wheel frame comprises a first connecting frame, a rotating block, a first fixed shaft and a carrying handle, one end of the first connecting frame is connected with the centering fixed plate, the middle part of the first connecting frame is in a U-shaped frame, the rotating block is connected with the middle part of the first connecting frame through the first fixed shaft, the carrying handle is connected with the other end of the first connecting frame, and a connecting threaded column is arranged on the rotating block and connected with the flaw detection wheel sleeve.

[0011] Preferably, the angle adjusting assembly comprises an angle adjusting disc, a first bolt and a first nut, one end of the angle adjusting disc is connected with the flaw detection wheel sleeve, the other end of the angle adjusting disc is provided with a first waist-shaped hole, the first bolt is connected with the flaw detection wheel frame, and the first bolt is connected with the first nut after penetrating through the first waist-shaped hole.

[0012] Preferably, the inclination angle adjusting assembly comprises an inclination angle adjusting plate and a second bolt, the inclination angle adjusting plate is provided with four second waist-shaped holes symmetrically arranged in up-down and left-right directions, and the inclination angle adjusting plate is connected with the flaw detection wheel sleeve through the second bolt penetrating through the second waist-shaped hole.

[0013] Preferably, the centering adjusting assembly comprises a centering adjusting plate and an adjusting handle, the centering adjusting plate is connected with the outer side of the flaw detection wheel sleeve or the inclination angle adjusting assembly, and one end of the adjusting handle is threadedly connected with the rotating shaft of the flaw detection wheel body.

[0014] The angle adjusting assembly, the inclination angle adjusting assembly and the centering adjusting assembly are used for adjusting the flaw detection wheel body in multiple dimensions, and the adjusting precision is high and the self-locking capacity is strong through thread adjustment.

[0015] Preferably, the probe wheel sleeve comprises a rectangular frame and a pressing block, the pressing block is spliced with one side of the rectangular frame to form a circular hole, and the rotating shaft of the probe wheel body is connected with the circular hole and locked.

[0016] Preferably, the main support mechanism further comprises a second frame body, a brush and a nozzle, the second frame body is connected with the side of one end of the first frame body, the brush is connected with the second frame body, and the nozzle is connected with the second frame body.

[0017] The brush is used for removing dust on the steel rail, and the nozzle is used for spraying coupling liquid to discharge air in the microstructure space of the steel rail surface; the probe wheel body is filled with liquid and an ultrasonic transducer, ultrasonic waves are emitted by the ultrasonic transducer, pass through the internal medium of the water wheel, are in the water medium immersed on the surface of the steel rail, enter the steel rail, and detect the damage in the steel rail.

[0018] Preferably, the centering mechanism further comprises at least two groups of elastic sliding assemblies, the at least two groups of elastic sliding assemblies are connected with the bottom of the first frame body, and the centering fixing plate is connected with the bottom of the elastic sliding assembly.

[0019] Preferably, the centering mechanism further comprises guide blocks, the guide blocks are connected with the bottom of the centering fixing plate and are located on both sides of the small roller.

[0020] Preferably, the elastic sliding assembly comprises a mounting seat, a sliding rod, a spring and a sliding block, the mounting seat is connected with the bottom of the centering fixing plate, both ends of the sliding rod are connected with the mounting seat, the sliding block is slidably connected with the sliding rod, and the spring is sleeved with the sliding rod and abuts against the mounting seat and the sliding block away from the water wheel mechanism at both ends.

[0021] The spring can adaptively keep the water wheel mechanism centered and keep the water wheel coupled with the steel rail at all times.

[0022] The application further discloses a double-rail flaw detection vehicle adopting the probe wheel device.

[0023] The application has the following advantages:

[0024] (1) When the application is used, the main support mechanism is connected with the flaw detection vehicle, the walking wheel and the probe wheel mechanism are located on the steel rail, and the probe wheel mechanism detects the steel rail; in this process, the walking wheel is relatively fixedly arranged, and the centering mechanism can move along the axial direction of the probe wheel mechanism, that is, the small roller can move in the axial direction and always keep rolling friction with the side surface of the steel rail, so that the walking wheel is no longer subjected to the axial thrust, and thus the friction force is small and the noise is small; meanwhile, the application reduces electrically driven parts, and the whole is more portable, so that the application can meet the requirements of rapid moving, up and down rails, and the better the flexibility, the better the centering effect in movement.

[0025] (2) The present application realizes the adjustment of multiple dimensions of the probe wheel body through the angle adjusting assembly, the inclination adjusting assembly and the centering adjusting assembly, and the adjustment is realized through screw threads, so that the adjustment precision is high and the self-locking capability is strong;

[0026] (3) The brush is used for removing dust on the steel rail, the nozzle is used for spraying coupling liquid, air in the microstructure space of the steel rail surface is discharged, the probe wheel body is filled with liquid and an ultrasonic transducer, ultrasonic waves are emitted by the ultrasonic transducer, pass through the water wheel internal medium and the water medium immersed on the steel rail surface, enter the steel rail, and detect the damage in the steel rail;

[0027] (4) The spring can self-adaptively keep the centering of the probe wheel mechanism, and keep the probe wheel always coupled with the steel rail;

[0028] (5) Compared with a large-scale steel rail ultrasonic device, the electric driving mechanism is cancelled, the whole device is light, the centering effect is good, and the detection accuracy is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of the probe wheel device of the embodiment one of the present application;

[0030] Figure 2 is an exploded schematic view of the probe wheel device of the embodiment one of the present application;

[0031] Figure 3 is a structural schematic view of the main support of the embodiment one of the present application;

[0032] Figure 4 is a structural schematic view of the main support of the embodiment one of the present application;

[0033] Figure 5 is a connection schematic view of the probe wheel mechanism and the centering mechanism of the embodiment one of the present application;

[0034] Figure 6 is an exploded schematic view of the probe wheel mechanism and the centering mechanism of the embodiment one of the present application;

[0035] Figure 7 is a structural schematic view of the probe wheel mechanism of the embodiment one of the present application;

[0036] Figure 8 is an exploded schematic view of the probe wheel mechanism (without the probe wheel body) of the embodiment one of the present application;

[0037] Figure 9 is a structural schematic view of the centering mechanism of the embodiment two of the present application;

[0038] Figure 10 is a structural schematic view of the double-rail probe wheel vehicle adopting the probe wheel device of the embodiment three of the present application;

[0039] Figure 11is the structural schematic diagram of the double-track probe wheel vehicle adopting the probe wheel device in the fourth embodiment of the present application;

[0040] Reference numerals in the figure:

[0041] 1, main support mechanism; 11, first frame body; 12, walking wheel; 13, second frame body; 14, brush; 15, nozzle; 16, quick release pipe clamp; 17, wheel support;

[0042] 2, probe wheel mechanism; 21, probe wheel body; 22, probe wheel sleeve; 221, rectangular frame; 222, pressing block; 223, pressing bolt; 23, probe wheel frame; 231, first connecting frame; 232, rotating block; 233, first fixed shaft; 234, carrying handle; 241, angle adjusting disc; 243, first bolt; 243, first nut; 24, angle adjusting assembly; 25, inclination angle adjusting assembly; 251, inclination angle adjusting plate; 252, second bolt; 26, centering adjusting assembly; 261, centering adjusting plate; 262, adjusting handle; 27, locking bolt;

[0043] 3, centering mechanism; 31, centering fixed plate; 32, small roller; 33, elastic sliding assembly; 331, mounting seat; 332, sliding rod; 333, spring; 334, sliding block; 34, guide block;

[0044] 4, vehicle body; 5, steel rail. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] Embodiment one:

[0047] As shown in Figure 1 , Figure 2 , the probe wheel device comprises a main support mechanism 1, a probe wheel mechanism 2 and a centering mechanism 3. The main support mechanism 1 comprises a first frame body 11 and a walking wheel 12. The walking wheel 12 is connected to both ends of the first frame body 11. The centering mechanism 3 comprises a centering fixed plate 31 and a small roller 32. The centering fixed plate 31 is connected to the first frame body 11 and can move axially along the probe wheel mechanism 2. The small roller 32 is connected to the centering fixed plate 31 and located on the side of the walking wheel 12. The probe wheel mechanism 2 is connected to the centering fixed plate 31.

[0048] Specifically, as shown in Figure 3 ,Figure 4 As shown in the drawings, the main support mechanism 1 comprises a second frame body 13, a brush 14, a nozzle 15, quick-release pipe clamps 16, and wheel supports 17. The first frame body 11 is in the shape of a convex structure with one end open, and the open end is the larger end of the convex structure. The first frame body 11 is in the shape of a flat plate, and two quick-release pipe clamps 16 are connected to the two sides of the closed end of the first frame body 11, respectively. Wheel supports 17 are also connected to the two ends of the first frame body 11, respectively. The walking wheels 12 are rotatably connected to the wheel supports 17. The walking wheels 12 are used for the overall movement of the device and also have the function of collecting mileage encoding signals. The walking wheels 12 are connected to the main machine of the flaw detection vehicle, and the encoding signals are transmitted to the main machine and finally displayed on the computer.

[0049] The second frame body 13 is connected to one end of the first frame body 11 and located on the side of the wheel support 17. The brush 14 is connected to the second frame body 13, and the nozzle 15 is connected to the second frame body 13. The nozzle 15 is connected to the water tank through pipes, joints, etc. The brush 14 is used to remove dust on the rail, and the nozzle 15 is used to spray coupling liquid to expel air in the microstructure space of the rail surface. The probe wheel mechanism 2 is filled with liquid and ultrasonic transducers. After the ultrasonic waves are emitted by the ultrasonic transducers, they pass through the internal medium of the water wheel and the water medium immersed on the rail surface to enter the rail, thereby detecting the damage in the rail.

[0050] As shown in the drawings, Figure 7 , Figure 8 and as shown in the drawings, Figure 5 , Figure 6 The probe wheel mechanism 2 comprises a probe wheel body 21, a probe wheel sleeve 22, a probe wheel support 23, an angle adjusting assembly 24, an inclination adjusting assembly 25, a centering adjusting assembly 26, and locking bolts 27. Two probe wheel supports 23 are connected to the two ends of the centering fixing plate 31. One end or both ends of the probe wheel sleeve 22 are connected to the probe wheel support 23 through the angle adjusting assembly 24. The two ends of the rotating shaft of the probe wheel body 21 are connected to the probe wheel sleeve 22. One end or both ends of the probe wheel body 21 are connected to the inclination adjusting assembly 25 and the centering adjusting assembly 26.

[0051] The probe wheel body 21 is a conventional probe wheel filled with liquid and ultrasonic transducers.

[0052] As shown in the drawings, Figure 8 The probe wheel sleeve 22 comprises a rectangular frame 221, a pressing block 222, and a pressing bolt 223. Arc-shaped grooves are formed on the top surfaces of the two sides of the rectangular frame 221. Arc-shaped grooves are formed on the bottom surface of the pressing block 222. After the arc-shaped grooves of the rectangular frame 221 and the arc-shaped grooves of the pressing block 222 are connected, a circular hole is formed. One end of the rotating shaft of the probe wheel body 21 is inserted into the circular hole and locked by the pressing bolt 223.

[0053] As shown in the drawings, Figure 8As shown, the probe wheel frame 23 comprises a first connecting frame 231, a rotating block 232, a first fixed shaft 233, and a carrying handle 234. One end of the first connecting frame 231 is connected to the centering fixed plate 31. The middle part of the first connecting frame 231 is a U-shaped frame. The rotating block 232 is fixedly connected to the first fixed shaft 233. The two ends of the first fixed shaft 233 are connected to the middle part of the first connecting frame 231. The carrying handle 234 is connected to the other end of the first connecting frame 231. The rotating block 232 is provided with a connecting threaded column. The connecting threaded column is threadedly connected to the probe wheel sleeve 22. The probe wheel sleeve 22 can be finely adjusted left and right along the axis of the connecting threaded column.

[0054] The angle adjusting assembly 24 comprises an angle adjusting disc 241, a first bolt 242, and a first nut 243. The angle adjusting disc 241 is substantially fan-shaped. The bottom end of the angle adjusting disc 241 is provided with a circular hole. One end of the probe wheel sleeve 22 is connected to the connecting threaded column of the rotating block 232. The top end of the angle adjusting disc 241 is provided with a first waist-shaped hole. The side surface of the top end of the rotating block 232 on the left side is connected to the first bolt 242. The first bolt 242 passes through the first waist-shaped hole and is connected to the first nut 243. When the probe wheel body 21 is fixed to the probe wheel sleeve 22 and connected to the rotating block 232, the probe wheel sleeve 22 can be adjusted left and right because the rotating block 232 is threadedly connected to the probe wheel sleeve 22.

[0055] The inclination angle adjusting assembly 25 comprises an inclination angle adjusting plate 251 and a second bolt 252. The inclination angle adjusting plate 251 is provided with four second waist-shaped holes symmetrically arranged in up-down and left-right directions. The inclination angle adjusting plate is connected to the right side of the rectangular frame 221 through the second bolt 252 passing through the second waist-shaped hole. The arc-shaped groove on the right side of the rectangular frame 221 is only used for supporting the rotating shaft of the probe wheel body 21. The middle part of the inclination angle adjusting plate 251 has a connecting hole for connecting the rotating shaft of the probe wheel body 21. The right end of the rotating shaft of the probe wheel body 21 is connected to the connecting hole, and then locked by the radial locking bolt 27.

[0056] The centering adjusting assembly 26 comprises a centering adjusting plate 261 and an adjusting handle 262. The centering adjusting plate 261 is connected to the outer side of the probe wheel sleeve 22 or the inclination angle adjusting assembly 25. It should be noted that, in order to facilitate adjustment, the centering adjusting assembly 26 is connected to the outside of the inclination angle adjusting assembly 25. Specifically, the centering adjusting plate 261 is connected to the outside of the inclination angle adjusting plate 251. The side surface of the centering adjusting plate 261 is open. One end of the adjusting handle 262 is a threaded section, and the other end is a hand-held end. The threaded section is connected to the rotating shaft of the probe wheel body 21. When the adjusting handle 262 is clamped into the centering adjusting plate 261 from the side opening, the axial movement of the threaded section is limited. Therefore, when the adjusting handle 262 is screwed, the probe wheel body 21 is driven by the thread to move axially, thereby performing centering adjustment.

[0057] The embodiment realizes the adjustment of multiple dimensions of the probe wheel body 21 through the angle adjustment assembly 24, the inclination angle adjustment assembly 25 and the centering adjustment assembly 26, and the adjustment is realized through screw adjustment, so that the adjustment accuracy is high and the self-locking capability is strong.

[0058] The embodiment adjusts the angle of the probe wheel body 21 through the angle adjustment mechanism, the inclination angle adjustment mechanism and the centering adjustment mechanism, so that the probe wheel body 21 is always effectively coupled with the steel rail 7. Specifically, one end of the rotating shaft of the probe wheel body 21 can be connected between one side of the rectangular frame 221 and the pressing block 222; the other end can be inserted into the other side of the rectangular frame 221 and the inside of the inclination angle adjustment block 251; the probe wheel body 21 can be centered through the rotating adjustment handle 262, and the probe wheel body 21 and the probe wheel sleeve 22 can be fixed together through the locking bolt 27; the front and rear angles of the probe wheel body 21 can be adjusted through the inclination angle adjustment block 226, and the third bolt 2261 and the pressing bolt 223 can be locked after completion; the left and right angles of the probe wheel body 21 can be adjusted through the angle adjustment disc 241, and the first bolt 242 can be locked after completion. Only the recommended adjustment mode is given here, and the front and rear, left and right, centering and other adjustments and the adjustment sequence can be changed according to the actual use, so as to finally present the best state.

[0059] When the embodiment is used, the main support mechanism 1 is connected with the flaw detection vehicle, the walking wheel 12 and the probe wheel body 21 are located on the steel rail, and the probe wheel mechanism 2 detects the flaw of the steel rail. During the process, the walking wheel 12 is relatively fixed, and the centering mechanism 3 can move along the axial direction of the probe wheel body 21, that is, the small roller 32 can move axially and always keep rolling friction with the side surface of the steel rail, so that the walking wheel 12 is no longer subjected to the axial thrust, and thus the friction force is small and the noise is small. At the same time, the embodiment reduces the electrically driven parts, and the whole is more portable. The portability is better, so that the fast moving, up and down rails can be satisfied, and the better flexibility, the better centering effect in motion.

[0060] Embodiment two:

[0061] As shown in Figure 9 the above embodiment one, the centering mechanism 3 includes a centering fixed plate 31, two groups of elastic sliding assemblies 33 and two small rollers 32, and reference is made to Figure 2 , Figure 6 the top ends of the two groups of elastic sliding assemblies 33 are connected with the first frame body 11, the centering fixed plate 31 is connected with the bottom ends of the elastic sliding assemblies 33, and the two small rollers 32 are connected with the bottoms of the two ends of the centering fixed plate 31. The small roller 32 is used for the centering and limiting of the probe wheel mechanism 2 when detecting the side surface of the steel rail 5.

[0062] The elastic sliding assembly 33 in the embodiment is two, each of which comprises a mounting seat 331, a sliding rod 332, a spring 333 and a sliding block 334. Each elastic sliding assembly 33 is provided with two mounting seats 331, which are connected to the first frame body 11 by bolts and are arranged at a distance from each other. The two ends of the sliding rod 332 are fixedly connected to the mounting seats 331, the sliding block 334 is slidably connected to the sliding rod 332, and the spring 333 is sleeved on the sliding rod 332 and abuts at its two ends on the mounting seat 331 and the sliding block 334 away from the probe wheel mechanism 2. The bottom of the sliding block 334 is connected to the centering fixed plate 31 by bolts, and the probe wheel frame 23 is connected to the centering fixed plate 31.

[0063] That is, the self-adapting performance of the spring 333 enables the centering fixed plate 31 to move adaptively, so that the probe wheel frame 23 moves adaptively, thereby keeping the probe wheel mechanism 2 centered and keeping the probe wheel body 21 always coupled to the steel rail 5.

[0064] In the embodiment, the centering mechanism 3 further comprises guide blocks 34, two of which are arranged on the two sides of each small roller 32, and the guide blocks 34 are used to realize the function of passing through a railway turnout.

[0065] Embodiment three

[0066] As shown in Figure 10 the embodiment, the probe vehicle disclosed in the embodiment adopts the probe wheel device in the above-mentioned embodiment two, and comprises a vehicle body 4, the two ends of the vehicle body 4 are detachably connected to the first frame body 11 of the probe wheel device by quick-release pipe clamps 16.

[0067] Embodiment four

[0068] As shown in Figure 11 the embodiment, the probe vehicle disclosed in the embodiment adopts the probe wheel device in the above-mentioned embodiment two, and comprises a vehicle body 4, the two sides of the vehicle body are connected to the first frame body 11 of the probe wheel device by connecting plates.

[0069] The probe wheel device in the embodiment can be applied to other double-track probe vehicles, and is light and convenient to disassemble. Moreover, the structure is simple, the weight of the entire double-track probe vehicle is reduced, and the flexibility is high.

[0070] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A feeler wheel device characterized by, The application relates to a probe wheel device, which comprises a main support mechanism, a probe wheel mechanism and a centering mechanism, wherein the main support mechanism comprises a first frame body and walking wheels, the walking wheels are connected to the two ends of the first frame body, the centering mechanism comprises a centering fixed plate and small rollers, the centering fixed plate is connected to the first frame body and can move along the probe wheel mechanism, the small rollers are connected to the centering fixed plate and located on the side of the walking wheels, and the probe wheel mechanism is connected to the centering fixed plate.

2. The probe wheel apparatus of claim 1, wherein, The probe wheel mechanism comprises a probe wheel body, a probe wheel sleeve, probe wheel frames, an angle adjusting assembly, an inclination angle adjusting assembly and a centering adjusting assembly, two probe wheel frames are connected to the two ends of the centering fixed plate, one end or both ends of the probe wheel sleeve are connected to the probe wheel frames through the angle adjusting assembly, the two ends of the rotating shaft of the probe wheel body are connected to the probe wheel sleeve, and one end or both ends of the probe wheel body are connected to the inclination angle adjusting assembly and the centering adjusting assembly.

3. The puck device of claim 2, wherein, The probe wheel frame comprises a first connecting frame, a rotating block, a first fixed shaft and a carrying handle, one end of the first connecting frame is connected to the centering fixed plate, the middle part of the first connecting frame is in a U-shaped frame structure, the rotating block is connected to the middle part of the first connecting frame through the first fixed shaft, the carrying handle is connected to the other end of the first connecting frame, and a connecting threaded column is arranged on the rotating block and connected to the probe wheel sleeve.

4. The puck device of claim 2, wherein, The angle adjusting assembly comprises an angle adjusting disc, a first bolt and a first nut, one end of the angle adjusting disc is connected to the probe wheel sleeve, the other end of the angle adjusting disc is provided with a first waist-shaped hole, the first bolt is connected to the probe wheel frame, and the first bolt is connected to the first nut after penetrating through the first waist-shaped hole.

5. The puck device of claim 2, wherein, The inclination angle adjusting assembly comprises an inclination angle adjusting plate and a second bolt, the inclination angle adjusting plate is provided with four second waist-shaped holes which are symmetrical in up-down and left-right directions, and the inclination angle adjusting plate is connected to the probe wheel sleeve through the second bolt penetrating through the second waist-shaped holes.

6. The puck device of claim 2, wherein, The centering adjusting assembly comprises a centering adjusting plate and an adjusting handle, the centering adjusting plate is connected to the outer side of the probe wheel sleeve or the inclination angle adjusting assembly, and one end of the adjusting handle is threadedly connected to the rotating shaft of the probe wheel body.

7. The puck device of claim 2, wherein, The probe wheel sleeve comprises a rectangular frame and a pressing block, the pressing block is spliced with one side of the rectangular frame to form a circular hole, and the rotating shaft of the probe wheel body is connected to the circular hole and locked.

8. The puck device of claim 1, wherein, The main support mechanism further comprises a second frame body, a brush and a nozzle, the second frame body is connected to the side of one end of the first frame body, the brush is connected to the second frame body, and the nozzle is connected to the second frame body.

9. The puck device of claim 1, wherein, The centering mechanism further comprises at least two groups of elastic sliding assemblies, the at least two groups of elastic sliding assemblies are connected to the bottom of the first frame body, and the centering fixed plate is connected to the bottom of the elastic sliding assemblies.

10. A double track inspection car employing the wheelset of any one of claims 1-9, wherein, The application further relates to a vehicle, which comprises a vehicle body, and the two ends of the vehicle body are detachably connected to the first frame body of the probe wheel device.

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