A mobile inspection system

Abstract

The embodiment of the present application provides a mobile flaw detection system, the mobile flaw detection system comprises a track moving device, a driving device and an electron linear accelerator, the track moving device comprises a track and a moving vehicle, the track extends along a first direction, and the track is used for carrying the moving vehicle so that the moving vehicle can move along the first direction; the driving device is arranged on the moving vehicle, the driving device comprises a first driving assembly and a second driving assembly, the second driving assembly is drivingly connected with a driving part of the first driving assembly, so as to drive the second driving assembly to move along a second direction; the electron linear accelerator is drivingly connected with the driving part of the second driving assembly, so as to drive the electron linear accelerator to move along a third direction, and the first direction, the second direction and the third direction intersect with each other. The mobile flaw detection system in the embodiment of the present application realizes the purpose that the electron linear accelerator moves arbitrarily in a three-dimensional space; by adopting the track carrying mode, it is beneficial to install the electron linear accelerator with large size and large weight.

Description

Technical Field

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

[0002] An electron linear accelerator is a type of charged particle accelerator. It is a resonant accelerator that uses high microwave power to establish a longitudinal electric field in a traveling wave or standing wave acceleration structure to accelerate an electron beam.

[0003] Electron linear accelerators are characterized by high energy and strong penetration, and are widely used in fields such as container inspection and industrial flaw detection.

[0004] When inspecting large structural components, due to their large size and difficulty in movement, it is necessary to continuously move the linear accelerator to inspect the area to be inspected.

[0005] Electron linear accelerators are heavy and have a sophisticated structure, which places higher demands on their stability during movement. Summary of the Invention

[0006] In view of this, the embodiments of this application aim to provide a mobile flaw detection system capable of driving an electron linear accelerator to move stably in three-dimensional space.

[0007] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0008] This application provides a mobile flaw detection system, the mobile flaw detection system comprising:

[0009] A track-based moving device includes a track and a moving vehicle, the track extending along a first direction and the track being used to carry the moving vehicle so that the moving vehicle can move along the first direction;

[0010] A driving device is provided on the mobile vehicle. The driving device includes a first driving component and a second driving component. The second driving component is drivenly connected to the driving part of the first driving component to drive the second driving component to move along a second direction.

[0011] An electron linear accelerator is driven to be connected to the drive unit of the second drive assembly to drive the electron linear accelerator to move along a third direction, wherein the first direction, the second direction, and the third direction intersect each other.

[0012] In some embodiments, the first drive assembly includes a carrier, a first driver, a first sprocket, a first counterweight, and a first chain. The second direction is vertical. The carrier extends along the second direction and has a first cavity that extends along the second direction and is open at the top. The first counterweight is located inside the first cavity. One end of the first chain is connected to the second drive assembly, and the other end is connected to the first counterweight. The first driver is driven by the first sprocket. The first sprocket is located at the top of the carrier. The first chain is driven by the first sprocket, and the first chain forms the drive portion of the first drive assembly.

[0013] In some embodiments, the first drive assembly further includes a connecting beam, and the number of the carrier, the first sprocket, the first counterweight and the first chain are all two, the two carriers are spaced apart along the first direction, the connecting beam connects the tops of the two carriers, and the second drive assembly is disposed between the two carriers.

[0014] In some embodiments, the second drive assembly includes a first slide rail, a second slide rail, a first roller, a second roller, and a first movable bracket. The first slide rail and the second slide rail are both disposed on the support member and extend along the second direction. The first slide rail is disposed on one side of the support member along the first direction, and the second slide rail is disposed on one side of the support member along the third direction. The first roller and the second roller are rotatably engaged with the first movable bracket. The first roller is in rolling engagement with the first slide rail, and the second roller is in rolling engagement with the second slide rail.

[0015] In some embodiments, the second drive assembly includes a first movable bracket, a second movable bracket, a second driver, a transmission gear, and a transmission rack. The first movable bracket is movable relative to the first drive assembly along the second direction. The second driver is drivenly connected to the transmission gear. The second driver is disposed on one of the first movable bracket and the second movable bracket. The transmission rack is disposed on the other and extends along the third direction. The transmission gear is drivenly connected to the transmission rack. The second movable bracket forms the drive portion of the second drive assembly.

[0016] In some embodiments, the second drive assembly further includes a second counterweight, with the electron linear accelerator and the second counterweight located at one of the opposite ends of the second movable support along the third direction.

[0017] In some embodiments, the third direction is perpendicular to the vertical direction, the second movable bracket is provided with a mounting cavity, the mounting cavity extends through the second movable bracket in the vertical direction, and the second counterweight passes through the mounting cavity.

[0018] In some embodiments, the mobile flaw detection system further includes a rotating device disposed on the driving part of the second driving assembly to drive the rotating device to move along the second direction, and the electron linear accelerator disposed on the driving part of the rotating device to drive the electron linear accelerator to rotate.

[0019] In some embodiments, the rotating device includes a mounting bracket, a rotating platform, and a third driver. The driving part of the second driving assembly is connected to the mounting bracket. The third driver is disposed on the mounting bracket and drivenly connected to the rotating platform to drive the rotating platform to rotate. The electron linear accelerator is placed on top of the rotating platform.

[0020] In some embodiments, the mounting bracket is located at the bottom of the driving part of the second driving assembly and extends in a vertical direction, the third driver is located at the bottom of the mounting bracket, and the rotation axis of the rotating platform is perpendicular to the vertical direction.

[0021] In some embodiments, the mobile flaw detection system further includes a cooling device for providing a cooling medium to the electron linear accelerator. The cooling device is located on the mobile vehicle, on the side of the drive unit opposite to the electron linear accelerator.

[0022] In some embodiments, the mobile flaw detection system further includes a laser generator located on the electron linear accelerator, wherein the ray emission area of ​​the electron linear accelerator and the laser emission area of ​​the laser generator are located on the same side of the electron linear accelerator.

[0023] The mobile flaw detection system in this embodiment, through the cooperation of the track moving device, the first driving component, and the second driving component, facilitates the arbitrary movement of the electron linear accelerator in three-dimensional space, improving the adaptability of the mobile flaw detection system to objects of different sizes and shapes. By adopting a track-borne method, the load-bearing capacity of other parts of the mobile flaw detection system is improved. Due to the improved stability of the electron linear accelerator during movement, it is beneficial to install large-size and heavy electron linear accelerators, and to improve the mobile flaw detection system's ability to detect large-size and thick objects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the mobile flaw detection system in the first embodiment of this application;

[0025] Figure 2 for Figure 1 A magnified view of a portion of position A in the diagram;

[0026] Figure 3 for Figure 1 A schematic diagram of the mobile flaw detection system in the Chinese embodiment from another perspective;

[0027] Figure 4 for Figure 3 A magnified view of a portion of position B in the diagram;

[0028] Figure 5 This is a schematic diagram of the mobile flaw detection system in the second embodiment of this application.

[0029] Explanation of reference numerals in the attached figures

[0030] 10. Track moving device; 11. Track; 12. Moving vehicle; 20. Drive device; 21. First drive assembly; 211. Bearing member; 211a. First cavity; 212. First driver; 213. First sprocket; 214. First chain; 215. Connecting beam; 216. Support member; 22. Second drive assembly; 220. First slide rail; 221. Second slide rail; 222. First roller; 223. Second roller; 224. First movable bracket; 225. Second movable bracket; 225a. Mounting cavity; 226. Second driver; 227. Transmission gear; 228. Transmission rack; 229. Second counterweight; 30. Electron linear accelerator; 30a. Electron emission area; 30b. Laser emission area; 40. Rotating device; 41. Mounting bracket; 42. Rotating platform; 43. Third driver; 50. Cooling device; 60. Laser generator; 70. Detector. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0032] In the description of this application, the "first direction" orientation or positional relationship is based on the appendix. Figure 1 and Figure 2 The direction indicated by arrow X; the "second direction" direction or positional relationship is based on the attached... Figure 1 , Figure 3 and Figure 5 The direction of arrow Y shown; the "third direction" direction or positional relationship is based on the attached... Figure 1 and Figure 5 The direction of arrow Y is shown. It should be understood that these directional terms are only for the convenience of describing this application 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 application.

[0033] Electron linear accelerators are used to generate high-energy rays, primarily high-energy X-rays, which penetrate the object being inspected to detect its internal structure and identify internal defects without damaging or destroying the material, product, or component. Compared to some other non-destructive testing (NDT) instruments, electron linear accelerators produce higher-energy rays with better penetration, making them more suitable for NDT of large components. Due to the higher energy of the rays emitted, electron linear accelerators are significantly heavier and larger than other types of NDT instruments; for example, an electron linear accelerator can weigh up to 1 ton. Therefore, the smoothness of driving the electron linear accelerator's movement is crucial.

[0034] This application provides a mobile flaw detection system, see embodiments. Figure 1 The mobile flaw detection system includes a track-moving device 10, a drive device 20, and an electronic linear accelerator 30.

[0035] The track moving device 10 includes a track 11 and a moving vehicle 12. The track 11 extends along a first direction and is used to carry the moving vehicle 12 so that the moving vehicle 12 can move along the first direction.

[0036] The drive unit 20 is provided on the mobile vehicle 12. The drive unit 20 includes a first drive assembly 21 and a second drive assembly 22. The second drive assembly 22 is drivenly connected to the drive part of the first drive assembly 21 to drive the second drive assembly 22 to move along the second direction.

[0037] The electron linear accelerator 30 is driven to be connected to the drive unit of the second drive assembly 22 to drive the electron linear accelerator 30 to move along a third direction, wherein the first direction, the second direction and the third direction intersect each other.

[0038] The electron linear accelerator 30 can obtain high-energy electrons through electromagnetic fields and can directly emit high-energy electron beams or high-energy rays such as X-rays converted from high-energy electron beams.

[0039] The specific principle of the electron linear accelerator 30 has been applied in related technologies, and its specific working principle, related structure and devices will not be elaborated here.

[0040] Understandably, because the electron linear accelerator 30 itself is quite heavy, the structure of the drive device 20 needs to be strengthened accordingly, which results in the large weight and size of the drive device 20.

[0041] By employing the track 11 and the mobile vehicle 12, the electron linear accelerator 30 is driven to move along the first direction. Simultaneously, the track 11 guides and constrains the movement of the mobile vehicle 12, improving the stability of its movement in the first direction, which in turn enhances the stability of the electron linear accelerator 30's movement along that direction. Furthermore, compared to the mobile vehicle 12 moving directly on the ground, the track 11 provides a more stable bearing surface, increasing the load-bearing capacity of the mobile vehicle 12. This allows for the installation of a heavier electron linear accelerator 30 capable of generating higher-energy rays on the mobile flaw detection equipment, thereby improving the mobile flaw detection system's ability to detect large-sized, thick objects.

[0042] The mobile vehicle 12 can drive the first drive assembly 21 to move in the first direction, the first drive assembly 21 can drive the second drive assembly 22 to move in the second direction, and the second drive assembly 22 can drive the electron linear accelerator 30 to move in the third direction. This facilitates the movement of the electron linear accelerator 30 in three-dimensional space, so that the electron linear accelerator 30 can emit high-energy rays to different areas of the object to be inspected, thereby improving the mobile flaw detection system's ability to inspect large-sized objects.

[0043] The mobile flaw detection system in this embodiment, through the cooperation of the track moving device 10, the first drive component 21, and the second drive component 22, facilitates the arbitrary movement of the electron linear accelerator 30 in three-dimensional space, improving the adaptability of the mobile flaw detection system to objects of different sizes and shapes. By using the track 11 as a support, the load-bearing capacity of other parts of the mobile flaw detection system is improved. Due to the improved stability of the electron linear accelerator 30 during movement, it is beneficial to install large-size and heavy electron linear accelerators 30, and to improve the mobile flaw detection system's ability to detect large-size and thick objects.

[0044] In some embodiments, the first direction, the second direction, and the third direction are perpendicular to each other.

[0045] In some embodiments, see Figure 1 The first drive assembly 21 includes a support member 211, a first driver 212, a first sprocket 213, a first counterweight, and a first chain 214. The second direction is vertical. The support member 211 extends along the second direction. One end of the first chain 214 is connected to the second drive assembly 22, and the other end is connected to the first counterweight. The first driver 212 is driven by the first sprocket 213. The first sprocket 213 is located on top of the support member 211. The first chain 214 is driven by the first sprocket 213. The first chain 214 forms the drive part of the first drive assembly 21.

[0046] The chain drive between the first chain 214 and the first sprocket 213 helps to stabilize the movement of the second drive assembly 22 in the second direction. The chain drive is suitable for high-power transmission, thus adapting to driving the large-size, heavy-weight electronic linear accelerator 30 and the second drive assembly 22.

[0047] The first sprocket 213 is located on top of the support member 211, and both ends of the first chain 214 are located below the first sprocket 213. Under the action of gravity of the second drive assembly 22 and the action of the first counterweight, both ends of the first chain 214 are in a taut state, which helps to reduce the probability of the first chain 214 bending and falling off the first sprocket 213 during transmission, and helps to maintain the stability of transmission.

[0048] The first sprocket 213 is located on top of the support member 211, which also reduces the interference of the second drive assembly 22 on the rotation of the first sprocket 213 during the movement of the second drive assembly 22 in the second direction.

[0049] In some embodiments, see Figure 1 The support member 211 is provided with a first cavity 211a, which extends along the second direction and is open at the top, and the first counterweight is located in the first cavity 211a.

[0050] In this way, on the one hand, the space utilization of the bearing component 211 is improved; on the other hand, the inner wall of the first cavity 211a plays a guiding and limiting role in the movement of the first counterweight, reducing the risk that the first chain 214 will disengage from the first sprocket 213 due to shaking during the movement of the first counterweight.

[0051] The specific type of the load-bearing component 211 is not limited, such as square steel pipe.

[0052] In some embodiments, see Figure 1 and Figure 3 The first drive assembly 21 also includes a connecting beam 215, and two each of the bearing members 211, the first sprocket 213, the first counterweight, and the first chain 214. The two bearing members 211 are spaced apart along the first direction, and the connecting beam 215 connects the tops of the two bearing members 211. The second drive assembly 22 is located between the two bearing members 211.

[0053] This arrangement helps to distribute the weight of the second drive assembly 22 and the electron linear accelerator 30 onto the two load-bearing components 211, reducing the risk of deformation or damage to the load-bearing components 211 under load. The connecting beam 215 and the moving vehicle 12 constrain the two ends of the load-bearing component 211 along the second direction, further reducing the risk of deformation or damage to the load-bearing component 211 under load.

[0054] The second drive assembly 22 is located between the two support members 211. Since the support members 211 themselves constrain the movement of the second drive assembly 22 in the second direction, and also utilize the space between the two support members 211, it is beneficial to make the structure of the mobile flaw detection system more compact.

[0055] The specific type of the first driver 212 is not limited. For example, the first driver 212 includes a first drive motor, a transmission shaft and a first reducer. One end of the transmission shaft is connected to the first sprocket 213. The output of the first drive motor is connected to the input of the first reducer. The output of the first reducer is connected to the transmission shaft to achieve the purpose of driving the first sprocket 213 to rotate.

[0056] In some embodiments, see Figure 1 The first drive assembly 21 also includes a support block, which is located on the connecting beam 215 and supports the drive shaft, so as to transfer the load on the drive shaft to the connecting beam 215 and reduce the probability of the drive shaft bending or deforming under load.

[0057] In some embodiments, see Figure 1 and Figure 5 The first drive assembly 21 also includes a support beam located on at least one side of the carrier 211 along a third direction. One end of the support beam is connected to the carrier 211, and the other end is connected to the mobile vehicle 12. The extension direction of the support beam is inclined to the second direction.

[0058] In this way, the stability of the load-bearing component 211 is improved by the support beam, reducing the risk of the first drive component 21 overturning due to changes in the center of gravity during the movement of the electron linear accelerator 30.

[0059] In some embodiments, see Figure 1 and Figure 2 The second drive assembly 22 includes a first slide rail 220, a second slide rail 221, a first roller 222, a second roller 223, and a first movable bracket 224. The first slide rail 220 and the second slide rail 221 are both disposed on the support member 211 and extend along the second direction. The first slide rail 220 is disposed on one side of the support member 211 along the first direction, and the second slide rail 221 is disposed on one side of the support member 211 along the third direction. The first roller 222 and the second roller 223 are both rotatably engaged with the first movable bracket 224. The first roller 222 is in rolling engagement with the first slide rail 220, and the second roller 223 is in rolling engagement with the second slide rail 221.

[0060] By utilizing the rolling engagement between the first roller 222 and the first slide rail 220, and the rolling engagement between the second roller 223 and the second slide rail 221, it is beneficial to reduce the resistance of the second drive assembly 22 in the process along the second direction, and to reduce the load on the first driver 212.

[0061] The cooperation between the first roller 222 and the first slide rail 220 restricts the movement of the first movable support 224 relative to the first drive assembly 21 along the first direction; the cooperation between the second roller 223 and the second slide rail 221 restricts the movement of the first movable support 224 relative to the first drive assembly 21 along a third direction. This helps reduce the probability of the second drive assembly 22 moving relative to the first drive assembly 21 in directions other than the second direction, thus reducing the risk of the first drive assembly 21 overturning.

[0062] In some embodiments, see Figure 2 The number of second rollers 223 and second slide rails 221 is at least two, and the two second rollers 223 and the two second slide rails 221 are respectively located on one side of the support member 211 along a third direction. That is, the support member 211 is located between the two second rollers 223 along a third direction, thereby constraining the movement of the first movable bracket 224 relative to the first drive assembly 21 in two opposite directions along a third direction.

[0063] In some embodiments where two support members 211 are provided, see [reference]. Figure 3 Two support members 211 are spaced apart along a first direction. The number of first rollers 222 and first slide rails 220 is at least two. One first roller 222 and one first slide rail 220 are located on the side of one support member 211 closer to the other support member 211 along the first direction. That is, both the first roller 222 and the first slide rail 220 are located between the two support members 211, thereby constraining the movement of the first movable bracket 224 relative to the first drive assembly 21 in two opposite directions along the first direction.

[0064] In some embodiments, see Figure 3 and Figure 4 The second drive assembly 22 includes a first movable bracket 224, a second movable bracket 225, a second driver 226, a transmission gear 227, and a transmission rack 228. The first movable bracket 224 is movable relative to the first drive assembly 21 in a second direction. The second driver 226 is drivenly connected to the transmission gear 227. The second driver 226 is located on one of the first movable bracket 224 and the second movable bracket 225. The transmission rack 228 is located on the other and extends in a third direction. The transmission gear 227 is drivenly connected to the transmission rack 228. The second movable bracket 225 forms the drive part of the second drive assembly 22.

[0065] The first movable bracket 224 is used to drive the second drive assembly 22 to move along the second direction.

[0066] With the cooperation of the transmission gear 227 and the transmission rack 228, the second movable bracket 225 can move relative to the first movable bracket 224 in a third direction, thereby driving the electronic linear accelerator 30 to move in a third direction.

[0067] The use of transmission gear 227 and transmission rack 228 in combination is beneficial to improve transmission power, so as to drive the second movable bracket 225 and the electronic linear accelerator 30 to move.

[0068] The specific type of the second driver 226 is not limited. For example, the second driver 226 includes a second drive motor and a second reducer. The output of the second drive motor is connected to the input of the second reducer, and the output of the second reducer is connected to the transmission gear 227.

[0069] In some embodiments, the second drive assembly 22 further includes a first slider and a first slide rail 220. The first slide rail 220 moves in a third direction. One of the first movable bracket 224 and the second movable bracket 225 is provided with the first slider, and the other is provided with the first slide rail 220. The first slider and the first slide rail 220 are in sliding engagement. The first slider and the first slide rail 220 can bear part of the load of the second movable bracket 225, thereby reducing the load on the transmission gear 227 and the transmission rack 228.

[0070] In some embodiments, see Figure 1 , Figure 3 and Figure 5 The second drive assembly 22 also includes a second counterweight 229, with the electronic linear accelerator 30 and the second counterweight 229 located at one end of opposite ends of the second movable support 225 along a third direction.

[0071] This facilitates the balancing of the weight of the electron linear accelerator 30 by the second counterweight 229, and in the third direction, it makes the center of mass of the mobile flaw detection system as close as possible to the center of the mobile flaw detection system, reducing the risk of the first drive assembly 21 overturning due to the movement of the electron linear accelerator 30, and improving stability and safety.

[0072] In some embodiments, see Figure 1 , Figure 3 and Figure 5 The third direction is perpendicular to the vertical direction. The second movable bracket 225 is provided with a mounting cavity 225a. The mounting cavity 225a passes through the second movable bracket 225 in the vertical direction, and the second counterweight 229 passes through the mounting cavity 225a.

[0073] This helps to lower the height of the second counterweight 229, thereby lowering the center of gravity of the mobile flaw detection system, reducing the risk of the first drive assembly 21 overturning due to the movement of the electronic linear accelerator 30, and improving stability and safety.

[0074] In some embodiments, the second counterweight 229 is a cubic structure, and the projection of the mounting cavity 225a is square in the projection perpendicular to the vertical direction. In this way, the adverse effects on the stability of the mobile flaw detection system caused by the rotation of the second counterweight 229 relative to the second movable support 225 during the movement of the second movable support 225 can be reduced.

[0075] In some embodiments, see Figure 1 , Figure 3 and Figure 5 The mobile flaw detection system also includes a rotating device 40, which is located in the driving part of the second driving assembly 22 to drive the rotating device 40 to move along the second direction. An electronic linear accelerator 30 is located in the driving part of the rotating device 40 to drive the electronic linear accelerator 30 to rotate.

[0076] Thus, by driving the electron linear accelerator 30 to rotate through the rotating device 40, it is beneficial to enable the electron linear accelerator 30 to emit rays towards the object to be inspected from different directions, thereby adapting to the flaw detection requirements of objects with different shapes.

[0077] In some embodiments, see Figure 1 , Figure 3 and Figure 5 The rotating device 40 includes a mounting bracket 41, a rotating platform 42, and a third driver 43. The driving part of the second driving assembly 22 is connected to the mounting bracket 41. The third driver 43 is located on the mounting bracket 41 and is drivenly connected to the rotating platform 42 to drive the rotating platform 42 to rotate. The electronic linear accelerator 30 is placed on top of the rotating platform 42.

[0078] Because the electron linear accelerator 30 is relatively heavy, it has a large inertia during its movement.

[0079] The electron linear accelerator 30 is placed on top of the rotating platform 42, and the rotating platform 42 directly supports the electron linear accelerator 30, which reduces the risk of the electron linear accelerator 30 falling due to connection failure between the rotating platform 42 and the electron linear accelerator 30; it also helps to increase the contact area between the rotating platform 42 and the electron linear accelerator 30, increase the friction, and suppress the tendency of the rotating platform 42 and the electron linear accelerator 30 to move.

[0080] In an embodiment with a second movable bracket 225, the mounting bracket 41 is connected to the second movable bracket 225.

[0081] In some embodiments, see Figure 3 and Figure 5 The mounting bracket 41 is located at the bottom of the drive part of the second drive assembly 22 and extends vertically. The third driver 43 is located at the bottom of the mounting bracket 41. The rotation axis of the rotating platform 42 is perpendicular to the vertical direction.

[0082] This helps to reduce the height of the rotating device 40 and the electronic linear accelerator 30, thereby reducing the height of the center of gravity of the mobile flaw detection system, reducing the risk of the drive device 20 overturning due to the movement of the electronic linear accelerator 30, and improving stability and safety.

[0083] The specific type of the third drive 43 is not limited. For example, the third drive 43 includes a third drive motor and a third reducer. The output of the third drive motor is connected to the input of the third reducer, and the output of the third reducer is connected to the rotating platform 42.

[0084] In some embodiments, see Figure 1 and Figure 3 There are at least two mounting brackets 41, and the electron linear accelerator 30 is located between the two mounting brackets 41. In this way, the two mounting brackets 41 serve to constrain the electron linear accelerator 30.

[0085] The number of orbitals 11 can be one or more.

[0086] In some embodiments, a limiting member is provided at at least one end of the track 11 along the first direction, and the limiting member cooperates with the moving vehicle 12 to stop along the first direction, so as to reduce the risk of the moving vehicle 12 derailing.

[0087] In some embodiments, the mobile vehicle 12 is equipped with a locking device, which includes a retractable locking head. After the mobile vehicle 12 reaches a preset position along a first direction, the locking head extends to abut against the track 11, thereby using the friction between the locking head and the track 11 to reduce the risk of relative movement between the mobile vehicle 12 and the track 11 during the flaw detection operation.

[0088] The specific shape of the track 11 is not limited; for example, the track 11 is made of I-beams.

[0089] It is understandable that the moving vehicle 12 can be self-powered or moved by external forces.

[0090] In some embodiments, the mobile vehicle 12 includes a vehicle body, wheels and a fourth drive, with the wheels mounted on a track 11, a drive unit 20 mounted on the vehicle body, and the fourth drive driving the wheels to rotate.

[0091] The specific type of the fourth drive is not limited. For example, the fourth drive is a fourth drive motor, and the output of the fourth drive motor is connected to the wheel.

[0092] In some embodiments, see Figure 5 The mobile flaw detection system also includes a cooling device 50, which provides a cooling medium to the electron linear accelerator 30. The cooling medium is circulated through the cooling device 50 to the electron linear accelerator 30, thereby reducing the adverse effects of the heat generated by the electron linear accelerator 30 during its operation on its normal operation.

[0093] In some embodiments, see Figure 5 The cooling device 50 is located on the moving vehicle 12, and the cooling device 50 is located on the side of the drive device 20 away from the electronic linear accelerator 30.

[0094] This helps to lower the height of the center of gravity of the mobile flaw detection system and also helps to bring the center of gravity of the mobile flaw detection system as close as possible to the geometric center of the mobile flaw detection system, reducing the risk of the drive device 20 overturning due to the movement of the electronic linear accelerator 30, and improving stability and safety.

[0095] In some embodiments, the mobile flaw detection system includes a cable chain, and the cooling device 50 is provided with an exchange pipe that is connected to the electron linear accelerator 30. The cables and exchange pipes in the mobile flaw detection system are threaded through the cable chain so that they bend and move with the cable chain, thereby reducing the probability of damage to the cables and exchange pipes due to repeated bending and friction.

[0096] It is understandable that the rays emitted by the electron linear accelerator 30 do not belong to the visible light band.

[0097] In some embodiments, the mobile flaw detection system also includes a laser generator 60, which is located on the electron linear accelerator 30, with the ray emission area of ​​the electron linear accelerator 30 and the laser generation area of ​​the laser generator 60 located on the same side of the electron linear accelerator 30.

[0098] A laser generator is used to produce laser light.

[0099] The radiation emission area refers to the area where the electron linear accelerator 30 emits radiation; the laser generation area refers to the area where the laser generator 60 emits laser light.

[0100] Thus, during the flaw detection operation, a laser can be emitted first through the laser generation area. The light spot formed by the laser on the surface of the object to be inspected is used as a reference. The electron linear accelerator 30 is driven to move to a suitable position by the track moving device 10 and the drive device 20 so that the light spot is located in the preset inspection area of ​​the object to be inspected. Then, the electron linear accelerator 30 is controlled to work so that the X-rays irradiate the preset inspection area of ​​the object to be inspected.

[0101] In some embodiments, see Figure 5 The mobile flaw detection system also includes a detector 70. The detector 70 and the radiation emission area of ​​the electron linear accelerator 30 are arranged at relative intervals to form a working space. The working space is used to accommodate the preset detection area of ​​the object to be detected. The detector 70 is used to receive the radiation passing through the object to be detected, so as to determine the internal structure of the object to be detected based on the changes in radiation energy received in different areas.

[0102] The specific working principle and internal structure of detector 70 have been applied in related technologies and will not be elaborated here.

[0103] In some embodiments, the radiation receiving area of ​​the detector 70 is attached to the side of the object to be detected away from the radiation emitting area of ​​the electron linear accelerator 30 in order to receive radiation.

[0104] In some embodiments, the mobile flaw detection system also includes a movable device, with the detector 70 disposed on the drive unit of the movable device to drive the detector 70 to move in three-dimensional space so that the position of the radiation receiving area of ​​the detector 70 adapts to the change in the position of the radiation emitting area of ​​the electron linear accelerator 30.

[0105] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mobile flaw detection system, characterized in that, The mobile flaw detection system includes: A track-based moving device includes a track and a moving vehicle, the track extending along a first direction and the track being used to carry the moving vehicle so that the moving vehicle can move along the first direction; A driving device is provided on the mobile vehicle. The driving device includes a first driving component and a second driving component. The second driving component is drivenly connected to the driving part of the first driving component to drive the second driving component to move along a second direction. An electron linear accelerator is driven to be connected to the drive unit of the second drive assembly to drive the electron linear accelerator to move along a third direction, wherein the first direction, the second direction and the third direction intersect each other; The first drive assembly includes a carrier, a first driver, a first sprocket, a first counterweight, and a first chain. The second direction is vertical. The carrier extends along the second direction and has a first cavity. The first cavity extends along the second direction and is open at the top. The first counterweight is located inside the first cavity. One end of the first chain is connected to the second drive assembly, and the other end is connected to the first counterweight. The first driver is driven by the first sprocket. The first sprocket is located at the top of the carrier. The first chain is driven by the first sprocket. The first chain forms the drive part of the first drive assembly. The second drive assembly includes a first slide rail, a second slide rail, a first roller, a second roller, a first movable bracket, a second movable bracket, a second driver, a transmission gear, and a transmission rack. The first slide rail and the second slide rail are both disposed on the support member and extend along the second direction. The first slide rail is disposed on one side of the support member along the first direction, and the second slide rail is disposed on one side of the support member along the third direction. The first roller and the second roller are rotatably engaged with the first movable bracket. The first roller and the second roller are roll-engaged with the first slide rail. The first movable bracket is movable relative to the first drive assembly along the second direction. The second driver is drivenly connected to the transmission gear and is disposed on one of the first and second movable brackets. The transmission rack is disposed on the other and extends along the third direction. The transmission gear is drively connected to the transmission rack. The second movable bracket forms the drive portion of the second drive assembly.

2. The mobile flaw detection system according to claim 1, characterized in that, The first drive assembly further includes a connecting beam. The number of the load-bearing member, the first sprocket, the first counterweight, and the first chain are all two. The two load-bearing members are spaced apart along the first direction. The connecting beam connects the tops of the two load-bearing members. The second drive assembly is located between the two load-bearing members.

3. The mobile flaw detection system according to claim 1, characterized in that, The second drive assembly further includes a second counterweight, with the electronic linear accelerator and the second counterweight located at one end of opposite ends of the second movable support along the third direction.

4. The mobile flaw detection system according to claim 3, characterized in that, The third direction is perpendicular to the vertical direction. The second movable bracket has a mounting cavity, which extends through the second movable bracket in the vertical direction. The second counterweight passes through the mounting cavity.

5. The mobile flaw detection system according to claim 1, characterized in that, The mobile flaw detection system further includes a rotating device, which is located in the driving part of the second driving assembly to drive the rotating device to move along the second direction. The electron linear accelerator is located in the driving part of the rotating device to drive the electron linear accelerator to rotate.

6. The mobile flaw detection system according to claim 5, characterized in that, The rotating device includes a mounting bracket, a rotating platform, and a third driver. The driving part of the second driving component is connected to the mounting bracket. The third driver is located on the mounting bracket and is driven to drive the rotating platform to rotate. The electron linear accelerator is placed on top of the rotating platform.

7. The mobile flaw detection system according to claim 6, characterized in that, The mounting bracket is located at the bottom of the driving part of the second driving assembly and extends vertically. The third driver is located at the bottom of the mounting bracket, and the rotation axis of the rotating platform is perpendicular to the vertical direction.

8. The mobile flaw detection system according to claim 1, characterized in that, The mobile flaw detection system also includes a cooling device for providing a cooling medium to the electron linear accelerator. The cooling device is located on the mobile vehicle and is situated on the side of the drive unit away from the electron linear accelerator.

9. The mobile flaw detection system according to claim 1, characterized in that, The mobile flaw detection system also includes a laser generator, which is located on the electron linear accelerator. The ray emission area of ​​the electron linear accelerator and the laser generation area of ​​the laser generator are located on the same side of the electron linear accelerator.

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