Mobile flaw detection system

Abstract

The embodiment of the invention 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 bearing the moving vehicle so that the moving vehicle can move along the first direction; the driving device is arranged on the moving vehicle and comprises a first driving assembly and a second driving assembly, and the second driving assembly is in driving connection with a driving part of the first driving assembly so as to drive the second driving assembly to move in the second direction; the electron linear accelerator is in driving connection with the driving part of the second driving assembly so as to drive the electron linear accelerator to move in the third direction, and the first direction, the second direction and the third direction intersect with one another. According to the mobile flaw detection system disclosed by the embodiment of the invention, the purpose of randomly moving the electron linear accelerator in a three-dimensional space is achieved; and by adopting a rail bearing mode, the electronic linear accelerator with large size and heavy weight can be conveniently installed.

Description

Technical Field

[0001] The present application relates to the technical field of flaw detection, and in particular to a mobile flaw detection system. Background Art

[0002] The 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 the electron beam.

[0003] Electron linear accelerators have the characteristics of high energy and strong penetration, and are widely used in container inspection, industrial flaw detection and other fields.

[0004] In the process of inspecting large structural parts, due to the large size and inconvenience of movement of large structural parts, it is necessary to continuously move the electron linear accelerator in order to inspect the area to be inspected of the large structural parts.

[0005] The electron linear accelerator is heavy and has a precise structure, which places higher demands on its stability during movement. Summary of the invention

[0006] In view of this, an embodiment of the present application hopes to provide a mobile flaw detection system that can drive an electron linear accelerator to stably move in a three-dimensional space.

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

[0008] The present application provides a mobile flaw detection system, which includes:

[0009] A track moving device, comprising a track and a moving vehicle, wherein the track extends along a first direction, and the track is used to carry the moving vehicle so that the moving vehicle can move along the first direction;

[0010] A driving device, provided on the mobile vehicle, comprising a first driving assembly and a second driving assembly, wherein the second driving assembly is drivingly connected to a driving portion of the first driving assembly to drive the second driving assembly to move along a second direction;

[0011] The electron linear accelerator is drivingly connected to the driving part of the second driving assembly 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.

[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 a vertical direction, the carrier extends along the second direction, the carrier is provided with a first cavity, the first cavity extends along the second direction and is open at the top, the first counterweight is located in 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 drivingly connected to the first sprocket, the first sprocket is located at the top of the carrier, the first chain is drivingly matched with the first sprocket, and the first chain forms the driving part of the first drive assembly.

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

[0014] In some embodiments, the second driving component 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 arranged on the supporting member and extend along the second direction, the first slide rail is arranged on one side of the supporting member along the first direction, the second slide rail is arranged on one side of the supporting member along the third direction, the first roller and the second roller are both rotationally matched with the first movable bracket, the first roller is rollingly matched with the first slide rail, and the second roller is rollingly matched 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 can move along the second direction relative to the first drive assembly. The second driver is drivingly connected to the transmission gear. The second driver is arranged on one of the first movable bracket and the second movable bracket. The transmission rack is arranged on the other one. The transmission rack extends along the third direction. The transmission gear is drivingly connected to the transmission rack. The second movable bracket forms the driving part of the second drive assembly.

[0016] In some embodiments, the second driving assembly further includes a second counterweight, and the electron linear accelerator and the second counterweight are respectively located at one of two 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 an installation cavity, the installation cavity penetrates the second movable bracket along the vertical direction, and the second counterweight is inserted into the installation cavity.

[0018] In some embodiments, the mobile flaw detection system also includes a rotating device, which is disposed in the driving part of the second driving assembly to drive the rotating device to move along the second direction, and the electron linear accelerator is disposed in 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 arranged on the mounting bracket and is connected to the rotating platform to drive the rotating platform to rotate, and the electron linear accelerator is placed on the top of the rotating platform.

[0020] In some embodiments, the mounting bracket is disposed at the bottom of the driving portion of the second driving assembly and extends in the vertical direction, the third driver is disposed 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, which is used to provide a cooling medium to the electron linear accelerator. The cooling device is disposed on the mobile vehicle, and the cooling device is located on a side of the driving device away from the electron linear accelerator.

[0022] In some embodiments, the mobile flaw detection system further includes a laser generator, which is disposed on the electron linear accelerator, and a ray emitting region of the electron linear accelerator and a laser generating region of the laser generator are located on the same side of the electron linear accelerator.

[0023] The mobile flaw detection system in the embodiment of the present application, through the mutual cooperation of the track moving device, the first drive assembly and the second drive assembly, is conducive to achieving the purpose of arbitrary movement of the electron linear accelerator in three-dimensional space, and improves the adaptability of the mobile flaw detection system to objects to be detected of different sizes and shapes; by adopting the track bearing method, the bearing capacity of other parts of the mobile flaw detection system is improved. Since the stability of the electron linear accelerator during movement is improved, it is conducive to the installation of large-sized and heavy-weight electron linear accelerators, and is conducive to improving the detection capability of the mobile flaw detection system for large-sized and thick objects to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram of position A in the middle;

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

[0027] Figure 4 for Figure 3 A partial enlarged schematic diagram of position B in the middle;

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

[0029] Description of Reference Numerals

[0030] 10. Track moving device; 11. Track; 12. Moving vehicle; 20. Driving device; 21. First driving assembly; 211. Carrying member; 211a. First cavity; 212. First driver; 213. First sprocket; 214. First chain; 215. Connecting beam; 216. Support member; 22. Second driving 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 region; 30b. Laser emission region; 40. Rotating device; 41. Mounting bracket; 42. Rotating platform; 43. Third driver; 50. Cooling device; 60. Laser generator; 70. Detector. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0032] In the description of this application, the "first direction" orientation or position relationship is based on the attached Figure 1 and Figure 2 The direction of the arrow X shown; the "second direction" direction or position relationship is based on the attached Figure 1 , Figure 3 and Figure 5 The direction of the arrow Y shown; the direction or position relationship of the "third direction" is based on the attached Figure 1 and Figure 5 The orientation of the arrow Y shown. It should be understood that these orientation terms are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0033] Electron linear accelerators are used to generate high-energy rays, mainly high-energy X-rays, which penetrate the object to be inspected to detect the internal conditions of the object to be inspected and determine whether there are defects inside without damaging or destroying the material, product or component. Compared with some other non-destructive testing instruments, the electron linear accelerator generates higher energy rays and has better penetration performance on objects, making it more suitable for non-destructive testing of large-sized components. Due to the higher energy of the rays emitted by the electron linear accelerator, the electron linear accelerator is heavier and larger in size than other types of non-destructive testing instruments. For example, the mass of the electron linear accelerator can weigh up to 1t (ton). Therefore, higher requirements are placed on the stability of driving the electron linear accelerator to move.

[0034] The present application embodiment provides a mobile flaw detection system, see Figure 1 The mobile flaw detection system includes a track moving device 10, a driving device 20 and an electron 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 the track 11 is used to carry the moving vehicle 12 so that the moving vehicle 12 can move along the first direction.

[0036] The driving device 20 is disposed on the mobile vehicle 12, and includes a first driving assembly 21 and a second driving assembly 22, wherein the second driving assembly 22 is drivingly connected to a driving portion of the first driving assembly 21 to drive the second driving assembly 22 to move along a second direction;

[0037] The electron linear accelerator 30 is drivingly connected to the driving portion of the second driving assembly 22 to drive the electron linear accelerator 30 to move along a third direction, and the first direction, the second direction and the third direction intersect with each other.

[0038] The electron linear accelerator 30 can obtain high-energy electrons through an electromagnetic field, 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 the relevant technology, and its specific working principle, related structure and devices are not described in detail here.

[0040] It is understandable that, since the electron linear accelerator 30 itself is relatively heavy, the structure of the drive device 20 needs to have its structural strength enhanced accordingly, which results in a relatively large structural weight and size of the drive device 20 .

[0041] By adopting the track 11 and the mobile vehicle 12, while driving the electron linear accelerator 30 to move along the first direction, the track 11 can also guide and constrain the movement of the mobile vehicle 12, so as to improve the stability of the movement of the mobile vehicle 12 in the first direction, thereby facilitating the improvement of the stability of the movement of the electron linear accelerator 30 along the first direction; at the same time, the track 11 carries the mobile vehicle 12, and compared with the method in which the mobile vehicle 12 moves directly on the ground, the track 11 can provide a more stable bearing surface, which is conducive to improving the bearing capacity of the mobile vehicle 12, so that the electron linear accelerator 30 with a heavier weight and capable of generating higher energy level rays can be installed on the mobile flaw detection equipment, thereby improving the detection capability of the mobile flaw detection system for large-sized and thick objects to be detected.

[0042] The mobile vehicle 12 can drive the first drive component 21 to move in the first direction, the first drive component 21 can drive the second drive component 22 to move in the second direction, and the second drive component 22 can drive the electron linear accelerator 30 to move in the third direction. This is conducive to achieving the purpose of moving 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 detection capability of the mobile flaw detection system for large-sized objects to be inspected.

[0043] The mobile flaw detection system in the embodiment of the present application, through the mutual cooperation of the track moving device 10, the first drive component 21 and the second drive component 22, is conducive to achieving the purpose of arbitrary movement of the electron linear accelerator 30 in three-dimensional space, and improves the adaptability of the mobile flaw detection system to objects to be detected of different sizes and shapes; by adopting the bearing method of the track 11, the bearing capacity of other parts of the mobile flaw detection system is improved. Since the stability of the electron linear accelerator 30 during movement is improved, it is conducive to the installation of a large-sized and heavy-weight electron linear accelerator 30, which is conducive to improving the detection capability of the mobile flaw detection system for large-sized and thick objects to be detected.

[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 driving component 21 includes a bearing member 211, a first driver 212, a first sprocket 213, a first counterweight and a first chain 214. The second direction is a vertical direction. The bearing member 211 extends along the second direction. One end of the first chain 214 is connected to the second driving component 22, and the other end is connected to the first counterweight. The first driver 212 is drivingly connected to the first sprocket 213. The first sprocket 213 is located at the top of the bearing member 211. The first chain 214 is transmission-coordinated with the first sprocket 213. The first chain 214 forms the driving part of the first driving component 21.

[0046] The chain drive between the first chain 214 and the first sprocket 213 is conducive to stabilizing the movement of the second drive assembly 22 in the second direction. The chain drive is suitable for high-power transmission, and thus suitable for driving a large-sized and heavy-weight electron linear accelerator 30 and the second drive assembly 22.

[0047] The first sprocket 213 is located at the top of the bearing member 211, and both ends of the first chain 214 are located below the first sprocket 213. Under the gravity of the second driving assembly 22 and the first counterweight, both ends of the first chain 214 are in a straight state, which is conducive to reducing the probability of the first chain 214 bending during the transmission process and falling off from the first sprocket 213, and is conducive to maintaining the stability of the transmission.

[0048] The first sprocket 213 is located on the top of the carrier 211 , which also reduces the interference of the second driving assembly 22 on the rotation of the first sprocket 213 during the movement along the second direction.

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

[0050] In this way, on the one hand, the space utilization rate of the supporting member 211 is improved; on the other hand, the inner wall of the first cavity 211a guides and limits the movement of the first counterweight, thereby reducing the risk of the first chain 214 and the first sprocket 213 being separated due to the shaking of the first counterweight during movement.

[0051] The specific type of the bearing member 211 is not limited, for example, a square steel tube.

[0052] In some embodiments, see Figure 1 and Figure 3 The first driving component 21 also includes a connecting beam 215. The number of the supporting member 211, the first sprocket 213, the first counterweight and the first chain 214 are two. The two supporting members 211 are arranged at intervals along the first direction. The connecting beam 215 connects the tops of the two supporting members 211. The second driving component 22 is arranged between the two supporting members 211.

[0053] In this way, the weight of the second drive assembly 22 and the electron linear accelerator 30 is shared between the two bearings 211, which helps to reduce the risk of deformation and damage of the bearing 211 under the load. The connecting beam 215 and the moving vehicle 12 respectively constrain the two ends of the bearing 211 along the second direction, further reducing the risk of deformation and damage of the bearing 211 under the load.

[0054] The second driving assembly 22 is arranged between the two bearings 211. The bearing 211 itself is used to constrain the movement of the second driving assembly 22 along the second direction; the space between the two bearings 211 is also used, which is conducive to making 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 driving motor, a transmission shaft and a first reducer. One end of the transmission shaft is connected to the first sprocket 213, and the output of the first driving motor is transmission-connected to the input end of the first reducer. The output end of the first reducer is transmission-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 driving assembly 21 also includes a support block, which is arranged on the connecting beam 215 and supports the transmission shaft to transfer the load on the transmission shaft to the connecting beam 215, thereby reducing the probability of bending and deformation of the transmission shaft under the load.

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

[0058] In this way, the stability of the carrier 211 is improved by the support beam, and the risk of the first driving assembly 21 tipping over due to the change of the center of gravity during the movement of the electron linear accelerator 30 is reduced.

[0059] In some embodiments, see Figure 1 and Figure 2 The second driving component 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 arranged on the supporting member 211 and extend along the second direction. The first slide rail 220 is arranged on one side of the supporting member 211 along the first direction, and the second slide rail 221 is arranged on one side of the supporting member 211 along the third direction. The first roller 222 and the second roller 223 are both rotationally matched with the first movable bracket 224, the first roller 222 is rollingly matched with the first slide rail 220, and the second roller 223 is rollingly matched with the second slide rail 221.

[0060] The rolling cooperation between the first roller 222 and the first slide rail 220 and the rolling cooperation between the second roller 223 and the second slide rail 221 is helpful to reduce the resistance of the second drive component 22 in the process of moving along the second direction, and is helpful to reduce the load of the first driver 212.

[0061] The cooperation between the first roller 222 and the first slide rail 220 constrains the first movable bracket 224 from moving in the first direction relative to the first drive assembly 21; the cooperation between the second roller 223 and the second slide rail 221 constrains the first movable bracket 224 from moving in the third direction relative to the first drive assembly 21. This helps to reduce the probability of the second drive assembly 22 moving in directions other than the second direction relative to the first drive assembly 21, and reduces the risk of the first drive assembly 21 tipping over.

[0062] In some embodiments, see Figure 2 The number of the second rollers 223 and the 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 two sides of the bearing member 211 along the third direction. In other words, the bearing member 211 is located between the two second rollers 223 along the third direction, thereby constraining the first movable bracket 224 from moving in two opposite directions relative to the first driving assembly 21 along the third direction.

[0063] In some embodiments with two carriers 211, see Figure 3 , the two bearing members 211 are arranged at intervals along the first direction, the number of the first rollers 222 and the first slide rails 220 is at least two, and one first roller 222 and one first slide rail 220 are located on one side of the bearing member 211 close to the other bearing member 211 along the first direction. In other words, the first roller 222 and the first slide rail 220 are both located between the two bearing members 211, thereby restricting the first movable bracket 224 from moving in two opposite directions relative to the first driving assembly 21 along the first direction.

[0064] In some embodiments, see Figure 3 and Figure 4 The second driving 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 can move along the second direction relative to the first driving assembly 21. The second driver 226 is drivingly connected to the transmission gear 227. The second driver 226 is arranged on one of the first movable bracket 224 and the second movable bracket 225. The transmission rack 228 is arranged on the other. The transmission rack 228 extends along the third direction. The transmission gear 227 is drivingly connected to the transmission rack 228. The second movable bracket 225 forms the driving part of the second driving assembly 22.

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

[0066] The second movable bracket 225 can move along the third direction relative to the first movable bracket 224 under the cooperation of the transmission gear 227 and the transmission rack 228 , thereby driving the electron linear accelerator 30 to move along the third direction.

[0067] The cooperation between the transmission gear 227 and the transmission rack 228 is beneficial to improving the transmission power, so as to drive the second movable bracket 225 and the electron 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 driving motor and a second reducer. The output of the second driving 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 driving assembly 22 further includes a first slider and a first slide rail 220, the first slide rail 220 moves along the 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, and the first slider is slidably matched with the first slide rail 220. The first slider and the first slide rail 220 can bear a portion 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 driving assembly 22 further includes a second counterweight 229 , and the electron linear accelerator 30 and the second counterweight 229 are respectively located at one end of the opposite ends of the second movable bracket 225 along the third direction.

[0071] In this way, it is beneficial to balance the weight of the electron linear accelerator 30 through the second counterweight 229, and it is beneficial to make the center of mass of the mobile flaw detection system as close as possible to the center of the mobile flaw detection system in the third direction, thereby reducing the risk of overturning of the first drive assembly 21 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 penetrates the second movable bracket 225 along the vertical direction. The second counterweight 229 is disposed in the mounting cavity 225a.

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

[0074] In some embodiments, the second counterweight 229 is a cubic structure. In the projection perpendicular to the vertical direction, the projection of the installation cavity 225a is square. In this way, the adverse effect of the second counterweight 229 rotating relative to the second movable bracket 225 during the movement of the second movable bracket 225 on the stability of the mobile flaw detection system 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 disposed at the driving part of the second driving assembly 22 to drive the rotating device 40 to move along the second direction, and the electron linear accelerator 30 is disposed at the driving part of the rotating device 40 to drive the electron linear accelerator 30 to rotate.

[0076] In this way, driving the electron linear accelerator 30 to rotate by the rotating device 40 is conducive to enabling the electron linear accelerator 30 to emit rays to the object to be detected from different directions, thereby meeting the requirements of flaw detection of objects to be detected 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 arranged on the mounting bracket 41 and is drivingly connected to the rotating platform 42 to drive the rotating platform 42 to rotate. The electron linear accelerator 30 is placed on the top of the rotating platform 42.

[0078] Since the electron linear accelerator 30 is heavy, its inertia is relatively large during the movement of the electron linear accelerator 30 .

[0079] The electron linear accelerator 30 is placed on the top of the rotating platform 42, and the rotating platform 42 is used to directly support the electron linear accelerator 30, thereby reducing the risk of the electron linear accelerator 30 falling due to failure of the connection between the rotating platform 42 and the electron linear accelerator 30; it is also beneficial to increase the contact area between the rotating platform 42 and the electron linear accelerator 30, increase the friction force, and inhibit the movement tendency between the rotating platform 42 and the electron linear accelerator 30.

[0080] In the embodiment where the second movable bracket 225 is provided, 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 disposed at the bottom of the driving portion of the second driving assembly 22 and extends in the vertical direction. The third driver 43 is disposed 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 lower the height of the rotating device 40 and the electron linear accelerator 30, thereby helping to lower the center of mass height of the mobile flaw detection system, reducing the risk of overturning of the driving device 20 due to the movement of the electron linear accelerator 30, and improving stability and safety.

[0083] The specific type of the third driver 43 is not limited. For example, the third driver 43 includes a third driving motor and a third reducer. The output of the third driving 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 The number of the mounting brackets 41 is at least two, and the electron linear accelerator 30 is located between the two mounting brackets 41 . Thus, the two mounting brackets 41 play a role in restraining the electron linear accelerator 30 .

[0085] The number of the tracks 11 may be one or more.

[0086] In some embodiments, a limiter is provided at at least one end of the track 11 along the first direction, and the limiter 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 provided 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 rail 11, thereby utilizing the friction between the locking head and the rail 11 to reduce the risk of relative movement between the mobile vehicle 12 and the rail 11 during the flaw detection operation of the mobile flaw detection system.

[0088] The specific shape of the track 11 is not limited. Exemplarily, the track 11 is made of I-beam.

[0089] It is understandable that the moving vehicle 12 may be self-powered or may be driven by the outside world.

[0090] In some embodiments, the mobile vehicle 12 includes a vehicle body, wheels and a fourth driver, the wheels are arranged on the track 11, the driving device 20 is arranged on the vehicle body, and the fourth driver drives the wheels to rotate.

[0091] The specific type of the fourth driver is not limited. For example, the fourth driver is a fourth drive motor, and the output part 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 is used to provide a cooling medium to the electron linear accelerator 30, so as to circulate the cooling medium to the electron linear accelerator 30 through the cooling device 50, thereby reducing the adverse effect 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 disposed on the moving vehicle 12 , and the cooling device 50 is located on a side of the driving device 20 away from the electron linear accelerator 30 .

[0094] This is beneficial to lowering the height of the center of mass of the mobile flaw detection system, and is also beneficial for making the center of mass of the mobile flaw detection system as close as possible to the geometric center of the mobile flaw detection system, reducing the risk of overturning of the drive device 20 due to the movement of the electron linear accelerator 30, and improving stability and safety.

[0095] In some embodiments, the mobile flaw detection system includes a drag chain, and the cooling device 50 is provided with an exchange pipe, which is connected to the electron linear accelerator 30. The cables and exchange pipes in the mobile flaw detection system are passed through the drag chain so as to bend and move with the drag chain, thereby reducing the probability of the cables and exchange pipes being damaged by reciprocating 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 further includes a laser generator 60 , which is disposed on the electron linear accelerator 30 , and a ray emitting area of ​​the electron linear accelerator 30 and a laser generating area of ​​the laser generator 60 are located on the same side of the electron linear accelerator 30 .

[0098] The laser generating device is used to generate laser.

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

[0100] In this way, during the flaw detection operation, the laser can be first emitted through the laser generating area, and the light spot formed by the laser on the surface of the object to be detected is used as a reference. The electron linear accelerator 30 is driven to a suitable position by the track moving device 10 and the driving device 20 so that the light spot is located in the preset area to be detected of the object to be detected, and then the electron linear accelerator 30 is controlled to work so that the rays are irradiated to the preset area to be detected of the object to be detected.

[0101] In some embodiments, see Figure 5 The mobile flaw detection system also includes a detector 70, which is arranged relative to the ray emitting area of ​​the electron linear accelerator 30 to form a working space. The working space is used to accommodate a preset area to be inspected of the object to be inspected. The detector 70 is used to receive rays passing through the object to be inspected, so as to judge the internal structure of the object to be inspected according to the changes in the ray energy received in different areas.

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

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

[0104] In some embodiments, the mobile flaw detection system also includes a movable device, and the detector 70 is arranged on a driving part of the movable device to drive the detector 70 to move in a 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 is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile flaw detection system, characterized in that: The mobile flaw detection system comprises: A track moving device, comprising a track and a moving vehicle, wherein the track extends along a first direction, and the track is used to carry the moving vehicle so that the moving vehicle can move along the first direction; A driving device, provided on the mobile vehicle, comprising a first driving assembly and a second driving assembly, wherein the second driving assembly is drivingly connected to a driving portion of the first driving assembly to drive the second driving assembly to move along a second direction; The electron linear accelerator is drivingly connected to the driving part of the second driving assembly 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.

2. The mobile flaw detection system according to claim 1, characterized in that: The first driving assembly includes a bearing member, a first driver, a first sprocket, a first counterweight and a first chain. The second direction is a vertical direction. The bearing member extends along the second direction. The bearing member is provided with a first cavity. The first cavity extends along the second direction and is open at the top. The first counterweight is located in the first cavity. One end of the first chain is connected to the second driving assembly, and the other end is connected to the first counterweight. The first driver is drivingly connected to the first sprocket. The first sprocket is located at the top of the bearing member. The first chain cooperates with the first sprocket in transmission. The first chain forms the driving part of the first driving assembly.

3. The mobile flaw detection system according to claim 2, characterized in that: The first driving assembly also includes a connecting beam, the number of the supporting member, the first sprocket, the first counterweight and the first chain are two, the two supporting members are arranged at intervals along the first direction, the connecting beam connects the tops of the two supporting members, and the second driving assembly is arranged between the two supporting members.

4. The mobile flaw detection system according to claim 2, characterized in that: The second driving 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 arranged on the supporting member and extend along the second direction, the first slide rail is arranged on one side of the supporting member along the first direction, the second slide rail is arranged on one side of the supporting member along the third direction, the first roller and the second roller are both rotationally matched with the first movable bracket, the first roller is rollingly matched with the first slide rail, and the second roller is rollingly matched with the second slide rail.

5. The mobile flaw detection system according to claim 1, characterized in that: The second driving assembly includes a first movable bracket, a second movable bracket, a second driver, a transmission gear and a transmission rack. The first movable bracket can move along the second direction relative to the first driving assembly. The second driver is drivingly connected to the transmission gear. The second driver is arranged on one of the first movable bracket and the second movable bracket. The transmission rack is arranged on the other one. The transmission rack extends along the third direction. The transmission gear is drivingly connected to the transmission rack. The second movable bracket forms a driving part of the second driving assembly.

6. The mobile flaw detection system according to claim 5, characterized in that: The second driving assembly further includes a second counterweight, and the electron linear accelerator and the second counterweight are respectively located at one end of two opposite ends of the second movable support along the third direction.

7. The mobile flaw detection system according to claim 6, characterized in that: The third direction is perpendicular to the vertical direction. The second movable bracket is provided with a mounting cavity. The mounting cavity penetrates the second movable bracket along the vertical direction. The second counterweight is disposed in the mounting cavity.

8. The mobile flaw detection system according to claim 1, characterized in that: The mobile flaw detection system also includes a rotating device, which is arranged at the driving part of the second driving assembly to drive the rotating device to move along the second direction, and the electron linear accelerator is arranged at the driving part of the rotating device to drive the electron linear accelerator to rotate.

9. The mobile flaw detection system according to claim 8, characterized in that: 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 arranged on the mounting bracket and is drivingly connected to the rotating platform to drive the rotating platform to rotate. The electron linear accelerator is placed on the top of the rotating platform.

10. The mobile flaw detection system according to claim 9, characterized in that: The mounting bracket is arranged at the bottom of the driving part of the second driving assembly and extends in the vertical direction. The third driver is arranged at the bottom of the mounting bracket. The rotating axis of the rotating platform is perpendicular to the vertical direction.

11. The mobile flaw detection system according to claim 1, characterized in that: The mobile flaw detection system further comprises a cooling device, which is used to provide cooling medium to the electron linear accelerator. The cooling device is arranged on the mobile vehicle, and the cooling device is located on a side of the driving device away from the electron linear accelerator.

12. The mobile flaw detection system according to claim 1, characterized in that: The mobile flaw detection system further comprises a laser generator, which is arranged 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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