An aircraft wing fatigue crack detection apparatus

Abstract

The application relates to an airplane wing fatigue crack detection device, relates to the technical field of crack detection, and comprises a detection vehicle, an adjusting assembly, a detection assembly and a cleaning assembly; the adjusting assembly is fixed on the detection vehicle; the detection assembly comprises a mounting block, a mounting plate one and a mounting plate two; the mounting plate one is rotationally connected to the adjusting assembly, the mounting block is fixed on the mounting plate one, and the mounting plate two is fixed on the mounting block; the device can achieve the protective effect on the to-be-detected article, effectively prevent the to-be-detected article from being scratched during cleaning, can comprehensively clean the to-be-detected article, and improves the cleaning effect; the cleaning effect on the rollers can be improved, the gap between the two cleaning teeth is cancelled through the connecting layer, residual impurities between the cleaning teeth are effectively prevented, and the connecting layer is elastic, can pull the deformed cleaning teeth, and resets the same.

Description

Technical Field

[0001] The present invention relates to the technical field of crack detection, and in particular to an aircraft wing fatigue crack detection device. Background Art

[0002] Wings are one of the most important parts of an aircraft, mounted on the fuselage. Their main function is to generate lift, but they also house ammunition and fuel tanks, and can be stowed during flight.

[0003] Large-amplitude vibrations in aircraft caused by external interference are called limit cycle oscillations. These vibrations have a significant impact on the aircraft structure. On the one hand, the vibrations cause the aircraft structure to be subjected to constantly changing stresses, which can easily lead to fatigue failure. On the other hand, due to various hidden defects and damage during flight, these defects and damage can be activated during limit cycle oscillations, exacerbating the damage to the aircraft structure. Limit cycle oscillations can cause localized stress concentrations in the aircraft structure, leading to structural deformation, cracks, and fatigue failure. These stress concentrations are typically located at the weakest points in the structure, such as joints, corners, and holes. These areas are prone to fatigue cracks during vibration, compromising the safety and service life of the aircraft.

[0004] In the prior art, the outer surface of the roller is cleaned by cooperating with the elastic strip through the rolling of the roller, thereby improving the use effect of the roller. The device cleans the surface of the object to be detected by installing an arc plate, so that the debris attached to the surface will not affect the normal operation of the roller. However, during use, the end of the arc plate has serrations, which may cause damage to the object to be detected during cleaning. At the same time, the serrations at the upper end cannot completely scrape off the debris during the cleaning process, resulting in poor cleaning effect. For example, in a multi-bridge crack detection device provided by the authorization announcement No. CN111751408B, the end of the arc plate contacts the lower end surface of the main beam. It is equipped with serrations, so the arc plate will scrape off the moss and sludge on the lower end face of the main beam, thereby ensuring that the movement of the probe rod will not be hindered. When the arc plate encounters a crack, the arc plate will bounce up due to its elasticity, so that the arc plate will not be damaged; the upper end of the elastic bar contacts the outer surface of the roller, so that when the roller rotates, the moss and sludge attached to the outer surface of the roller is scraped off through the elastic bar. By providing a circular convex strip at the upper end of the elastic bar, the effect of the elastic bar in scraping off moss and sludge is better; if there is a crack on the lower end face of the main beam, the probe rod will extend into the crack, and at the same time the spring will press the conductive block against the upper part of the rectangular block, the signal light will light up, and the staff will judge that there is a crack on the lower end face of the main beam by the brightening of the signal light.

[0005] It has a major disadvantage: during use, the end of the curved plate has serrations, which may cause damage to the items to be inspected during cleaning. At the same time, the serrations on the upper end cannot completely scrape off debris during cleaning, resulting in poor cleaning effect. Summary of the Invention

[0006] The present invention aims to solve the technical problems existing in the prior art and provides an aircraft wing fatigue crack detection device, which solves the problem in the prior art that the end of the curved plate has serrations, which may cause damage to the object to be detected during cleaning, and the serrations on the upper end cannot completely scrape off debris during the cleaning process, resulting in poor cleaning effect. By changing the shape and material of the scraper, a certain protective effect can be achieved for the object to be detected, effectively preventing the object to be detected from being scratched during cleaning, and at the same time, the object to be detected can be fully cleaned, thereby improving the cleaning effect.

[0007] The technical solution of the present invention to solve the above technical problem is as follows: An aircraft wing fatigue crack detection device includes a detection vehicle, an adjustment component, a detection component and a cleaning component;

[0008] The adjustment component is fixed on the inspection vehicle;

[0009] The detection assembly includes a mounting block, a first mounting plate, and a second mounting plate;

[0010] The first mounting plate is rotatably connected to the adjustment assembly, the mounting block is fixed on the first mounting plate, and the second mounting plate is fixed on the mounting block;

[0011] The cleaning component is fixed on the detection component;

[0012] The detection assembly also includes a scraper;

[0013] The scraper is in the shape of a triangular prism, the length direction of the scraper is consistent with the length direction of the mounting plate 1, and the length of the scraper is the same as the length of the mounting plate 1;

[0014] One side edge of the scraper is fixed on the second mounting plate, and the upper end of the scraper is made of rubber material.

[0015] As an improvement, the mounting block, mounting plate 1 and mounting plate 2 are in the shape of a rectangular parallelepiped, and the mounting block, mounting plate 1 and mounting plate 2 have the same length direction and the same length.

[0016] As an improvement, the adjustment assembly includes cylinder one, cylinder two, cylinder three and a rotary disc;

[0017] The extension direction of the output end of the cylinder is perpendicular to the traveling direction of the inspection vehicle;

[0018] The cylinder 1 is fixed on the inspection vehicle, the cylinder 2 is hinged on the output end of the cylinder 1, and the cylinder 3 is hinged on the output end of the cylinder 2;

[0019] The turntable is cylindrical, the axis of the turntable is perpendicular to the extension direction of the third output end of the cylinder, and one side of the turntable is fixed to the third output end of the cylinder;

[0020] The mounting plate is rotatably connected to the turntable;

[0021] The detection assembly includes a first port, a second port, a warning light, a spring, a conductive layer, a lifting block and a roller;

[0022] The mounting block is provided with a first through-hole, and the mounting plate is provided with a second through-hole. The first through-hole and the second through-hole are cylindrical, and the axes of the first through-hole and the second through-hole are on the same straight line. There are four through-holes in each of the first through-hole and the second through-hole, and the four through-holes are in one-to-one correspondence. The first through-hole and the second through-hole are connected.

[0023] The diameter of the second opening is smaller than the diameter of the first opening;

[0024] The number of the springs, conductive layers, lifting blocks and rollers is the same as that of the through-port 1, and they correspond to the through-ports one by one;

[0025] The spring is located in the first through-port, and the lower end of the spring is fixed on the first mounting plate;

[0026] The conductive layer and the lifting block are cylindrical, the axes of the conductive layer and the lifting block are in the same straight line as the axis of the first opening, the conductive layer is slidably connected in the first opening, the conductive layer is fixed to the upper end of the spring, the lifting block is slidably connected in the second opening, and the lower end of the lifting block is fixed to the conductive layer;

[0027] The roller is rotatably connected to the lifting block, and the axis of the roller is parallel to the length direction of the mounting plate 1;

[0028] The warning light is fixed on one side of the mounting block;

[0029] The cleaning assembly includes cleaning teeth;

[0030] The cleaning teeth are fixed on the lifting block. There are eight cleaning teeth, which are evenly spaced and distributed. The upper ends of the cleaning teeth are in close contact with the roller.

[0031] As an improvement, the cylinder 2 and the cylinder 1 are driven to rotate by a motor at a hinge, and the cylinder 3 and the cylinder 2 are driven to rotate by a motor at a hinge;

[0032] The extension direction of the output ends of the cylinder 2 and the cylinder 3 is perpendicular to the forward direction of the inspection vehicle;

[0033] The positive pole of the warning light is connected to the first mounting plate, and the negative pole of the warning light is connected to the second mounting plate;

[0034] The materials of the mounting plate 1, the mounting plate 2, the spring and the conductive layer are all conductive materials.

[0035] As an improvement, the cleaning component further includes a connecting layer;

[0036] The cleaning teeth are in the shape of triangular prisms, one side of the cleaning teeth is fixed on the lifting block, and the cleaning teeth are away from the side edge fixed on the side of the lifting block and close to the roller;

[0037] A gap is left between two adjacent cleaning teeth;

[0038] The number of the connecting layers is the same as the number of gaps between the eight cleaning teeth, and they correspond one to one;

[0039] The shape and size of the connecting layer are the same as those of the cleaning teeth, the length direction of the connecting layer is parallel to the length direction of the cleaning teeth, the connecting layer is located between two adjacent cleaning teeth, the bottom surfaces at both ends of the connecting layer are respectively fixed on the bottom surfaces of the cleaning teeth on both sides, and the lower end of the connecting layer is fixed on the lifting block.

[0040] As an improvement, the connecting layer is made of rubber;

[0041] The shape and size of the connecting layer are the same as those of the cleaning teeth, and the length direction of the connecting layer is parallel to the length direction of the cleaning teeth.

[0042] As an improvement, the cleaning assembly further includes a traction rope, a fixing plate, a roller, a groove 1, a groove 2, a rotating ring, a groove 3, an adjusting block and a limiting block;

[0043] The fixed plate is fixed to the side of the lifting block close to the scraper;

[0044] The drum is rotatably connected to a fixed plate, and a rotary motor is provided on one side of the drum;

[0045] The number of the traction ropes is the same as the number of the cleaning teeth, and they correspond one to one;

[0046] One end of the traction rope is fixed to the side of the cleaning tooth close to the scraper;

[0047] The drum is provided with a groove 1, and the groove 1, the rotating ring and the traction rope are the same in number and correspond to each other one by one;

[0048] The groove 1 is an annular groove, the rotating ring is a cylindrical body with a cavity, and the rotating ring is rotatably connected in the groove 1;

[0049] One end of the traction rope away from the cleaning teeth is fixed to the outer side wall of the rotating circle;

[0050] The groove 1 has a groove 2 inside, and the inner ring of the rotating ring has a groove 3. There are six grooves 2 and six grooves 3 respectively, and they are evenly spaced. The six grooves 2 correspond to the six grooves 3 respectively.

[0051] The number of the adjusting blocks and the limiting blocks is the same as that of the groove 2, and they correspond one-to-one with the groove 2 respectively;

[0052] The regulating block is fixed on the inner bottom side of the second groove, the limiting block is slidably connected in the second groove, and the top end of the limiting block is an arc shape that fits the third groove.

[0053] As an improvement, the traction rope is made of nylon.

[0054] As an improvement, the second groove is cylindrical, the third groove is an arc-shaped groove, the limit block is cylindrical, and the axis of the limit block is on the same straight line as the axis of the second groove.

[0055] As an improvement, the regulating block is a DC electromagnet, and the limiting block is made of a magnet.

[0056] The beneficial effects of the present invention are: firstly, it can provide a certain protective effect on the object to be inspected, effectively preventing the object to be inspected from being scratched when cleaning the object to be inspected, and at the same time, it can comprehensively clean the object to be inspected, thereby improving the cleaning effect;

[0057] Secondly, it can improve the cleaning effect of the roller. The gap between the two cleaning teeth is eliminated by the connecting layer, effectively preventing impurities from remaining between the cleaning teeth. At the same time, the connecting layer is elastic and can pull the deformed cleaning teeth to reset them.

[0058] Thirdly, the cleaning effect on the surface of the drum is improved by vibration, and the dust and debris attached to the surface can be shaken off. At the same time, during the vibration process, the dust and debris attached to the surface of the cleaning teeth and the connecting layer body can be shaken off; at the same time, the vibration frequency of the cleaning teeth can be adjusted according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 A three-dimensional diagram of an aircraft wing fatigue crack detection device according to the present invention Figure 1 ;

[0060] Figure 2 A three-dimensional diagram of an aircraft wing fatigue crack detection device according to the present invention Figure 2 ;

[0061] Figure 3 This is a front view of a detection component of an aircraft wing fatigue crack detection device according to the present invention;

[0062] Figure 4 The present invention is an aircraft wing fatigue crack detection device Figure 3 A magnified view of the structure at inner A;

[0063] Figure 5 This is a left view of a cleaning tooth of an aircraft wing fatigue crack detection device according to the present invention;

[0064] Figure 6 A three-dimensional diagram of the cleaning teeth and connecting layer of an aircraft wing fatigue crack detection device according to the present invention;

[0065] Figure 7 This is a front view of the cleaning teeth and connecting layer of an aircraft wing fatigue crack detection device of the present invention;

[0066] Figure 8 This is a left side view of the installation of a roller for an aircraft wing fatigue crack detection device according to the present invention;

[0067] Figure 9 This is a structural diagram of a roller of an aircraft wing fatigue crack detection device according to the present invention;

[0068] Figure 10 This is a schematic diagram of the installation of a rotating ring of an aircraft wing fatigue crack detection device according to the present invention;

[0069] Figure 11 This is a left side sectional view of a rotating ring mounting drum of an aircraft wing fatigue crack detection device according to the present invention;

[0070] Figure 12 The present invention is an aircraft wing fatigue crack detection device Figure 11 Enlarged view of the structure at point B.

[0071] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0072] 100. Inspection vehicle;

[0073] 200, adjustment assembly; 210, cylinder 1; 220, cylinder 2; 230, cylinder 3; 240, turntable;

[0074] 300, detection assembly; 310, mounting block; 311, port 1; 320, mounting plate 1; 330, mounting plate 2; 331, port 2; 340, warning light; 350, spring; 360, conductive layer; 370, lifting block; 380, roller; 390, scraper;

[0075] 400, cleaning assembly; 410, cleaning teeth; 420, connecting layer; 430, traction rope; 440, fixing plate; 450, roller; 451, groove one; 452, groove two; 460, rotating circle; 461, groove three; 470, adjustment block; 480, limit block. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0077] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0078] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art will recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0079] The inspection vehicle 100 is placed on the wing of the aircraft, and the position of the inspection component 300 is adjusted as needed. When the lower side of the aircraft wing needs to be inspected, the motor at the hinge of the cylinder 220 rotates the cylinder 220 so that the cylinder 3 230 is located at the lower end of the cylinder 220. At the same time, the motor at the hinge of the cylinder 3 230 rotates so that the turntable 240 at the output end of the cylinder 3 230 and the inspection component 300 are located on the lower side of the wing. The inspection component 300 is adjusted to a suitable inspection position by the extension and contraction of the cylinder 220 and the cylinder 3 230 and the rotation of the turntable 240. After the turntable 240 rotates, the scraper 390 needs to be kept always in front of the forward direction of the roller 380 so that the roller 380 contacts the wing of the aircraft and the conductive layer 360 does not contact the mounting plate 2 330. The inspection vehicle 100 moves, and in the process of moving forward, the scraper 390 scrapes off the dust and debris on the wing. At the same time, when the roller 380 rolls, the cleaning teeth 410 clean the dust and debris attached to the surface of the roller 380. When encountering a crack, the roller 380 will enter the crack, so that the conductive layer 360 is attached to the inside of the mounting plate 2 330, the circuit of the warning light 340 is connected, and the warning light 340 becomes bright, indicating that there is a crack in this area and further inspection is required. When it is necessary to clean the upper side of the aircraft wing, the motor at the hinge of cylinder 2 220 and cylinder 3 230 is used to rotate it so that cylinder 1 210, cylinder 2 220 and cylinder 3 230 are located in the same straight line. The detection component 300 is located below the turntable 240, and the angle of cylinder 2 220 is fine-tuned by the motor at the hinge of cylinder 2 220 and cylinder 3 230. The detection process is the same as the detection process for the lower side of the wing.

[0080] Example 1

[0081] like Figure 1-Figure 4 As shown, the present application provides an aircraft wing fatigue crack detection device, comprising a detection vehicle 100, an adjustment component 200, a detection component 300, and a cleaning component 400;

[0082] The adjustment assembly 200 is fixed on the inspection vehicle 100;

[0083] The detection assembly 300 includes a mounting block 310, a mounting plate 1 320, and a mounting plate 2 330;

[0084] The mounting block 310, the mounting plate 1 320 and the mounting plate 2 330 are in the shape of a rectangular parallelepiped. The mounting block 310, the mounting plate 1 320 and the mounting plate 2 330 are in the same length direction and have the same length.

[0085] The first mounting plate 320 is rotatably connected to the adjustment assembly 200 , the mounting block 310 is fixed to the first mounting plate 320 , and the second mounting plate 330 is fixed to the mounting block 310 ;

[0086] The cleaning component 400 is fixed on the detection component 300;

[0087] The detection assembly 300 further includes a scraper 390;

[0088] The scraper 390 is in the shape of a triangular prism. The length direction of the scraper 390 is consistent with the length direction of the mounting plate 1 320. The length of the scraper 390 is the same as the length of the mounting plate 1 320.

[0089] One side of the scraper 390 is fixed on the second mounting plate 330, and the upper end of the scraper 390 is made of rubber;

[0090] The adjustment assembly 200 includes a cylinder 1 210 , a cylinder 2 220 , a cylinder 3 230 and a rotary disk 240 ;

[0091] The extension direction of the output end of the cylinder 1 210 is perpendicular to the moving direction of the inspection vehicle 100;

[0092] The cylinder 1 210 is fixed on the inspection vehicle 100 , the cylinder 2 220 is hinged on the output end of the cylinder 1 210 , and the cylinder 3 230 is hinged on the output end of the cylinder 2 220 ;

[0093] The cylinder 2 220 and the cylinder 1 210 are driven to rotate by a motor at a hinge, and the cylinder 3 230 and the cylinder 2 220 are driven to rotate by a motor at a hinge;

[0094] The extension direction of the output ends of the cylinder 2 220 and the cylinder 3 230 is perpendicular to the forward direction of the inspection vehicle 100;

[0095] The turntable 240 is cylindrical, and the axis of the turntable 240 is perpendicular to the extension direction of the output end of the cylinder three 230. One side of the turntable 240 is fixed to the output end of the cylinder three 230.

[0096] The mounting plate 1 320 is rotatably connected to the turntable 240. The turntable 240 is provided with a motor. The output end of the motor is fixed to the rotating rod rotatably connected to the mounting plate 1 320 and the turntable 240. The motor drives the turntable 240 to rotate.

[0097] The detection assembly 300 includes a first opening 311, a second opening 331, a warning light 340, a spring 350, a conductive layer 360, a lifting block 370 and a roller 380;

[0098] The mounting block 310 has a first opening 311, and the second mounting plate 330 has a second opening 331. The first opening 311 and the second opening 331 are cylindrical, and the axes of the first opening 311 and the second opening 331 are on the same straight line. There are four first openings 311 and four second openings 331 respectively, and they correspond one to one. The first opening 311 and the second opening 331 are connected;

[0099] The diameter of the second opening 331 is smaller than the diameter of the first opening 311;

[0100] The number of the springs 350, the conductive layer 360, the lifting blocks 370 and the rollers 380 is the same as the number of the through-port 1 311, and they correspond one to one with the through-port 1 311.

[0101] The spring 350 is located in the through-port 1 311 , and the lower end of the spring 350 is fixed on the mounting plate 1 320 ;

[0102] The conductive layer 360 and the lifting block 370 are cylindrical in shape. The axes of the conductive layer 360 and the lifting block 370 are aligned with the axis of the first opening 311. The conductive layer 360 is slidably connected to the first opening 311. The conductive layer 360 is fixed to the upper end of the spring 350. The lifting block 370 is slidably connected to the second opening 331. The lower end of the lifting block 370 is fixed to the conductive layer 360.

[0103] The conductive layer 360 is initially attached to the second mounting plate 330;

[0104] The roller 380 is rotatably connected to the lifting block 370, and the axis of the roller 380 is parallel to the length direction of the mounting plate 1 320;

[0105] The warning light 340 is fixed to one side of the mounting block 310 , the positive pole of the warning light 340 is connected to the mounting plate 1 320 , and the negative pole of the warning light 340 is connected to the mounting plate 2 330 ;

[0106] The materials of the mounting plate 1 320 , the mounting plate 2 330 , the spring 350 and the conductive layer 360 are all conductive materials;

[0107] The cleaning assembly 400 includes cleaning teeth 410;

[0108] The cleaning teeth 410 are fixed on the lifting block 370 . There are eight cleaning teeth 410 , which are evenly spaced. The upper ends of the cleaning teeth 410 are in close contact with the roller 380 .

[0109] When in use, the inspection vehicle 100 is placed on the wing of the aircraft, and the position of the inspection assembly 300 is adjusted as needed. When it is necessary to inspect the lower side of the aircraft wing, the motor at the hinge of the cylinder 220 rotates the cylinder 220 so that the cylinder 3 230 is located at the lower end of the cylinder 220. At the same time, the motor at the hinge of the cylinder 3 230 rotates so that the turntable 240 at the output end of the cylinder 3 230 and the inspection assembly 300 are located at the lower side of the wing. Through the extension and retraction of the cylinder 220 and the cylinder 3 230 and the rotation of the turntable 240, the inspection assembly 300 is adjusted to a suitable inspection position. After the turntable 240 rotates, it is necessary to keep the scraper 390 always in the front side of the forward direction of the roller 380 so that the roller 380 contacts the wing of the aircraft, and at the same time, the conductive layer 360 does not contact the mounting plate 2 330. The inspection vehicle 100 moves, and in the process of moving forward, The scraper 390 scrapes off the dust and debris on the wing. At the same time, when the roller 380 rolls, the cleaning teeth 410 clean the dust and debris attached to the surface of the roller 380. When encountering a crack, the roller 380 will enter the crack, so that the conductive layer 360 sticks to the inside of the mounting plate 2 330, the circuit of the warning light 340 is connected, and the warning light 340 becomes bright, indicating that there is a crack in this area and further inspection is required. When it is necessary to clean the upper side of the aircraft wing, the motor at the hinge of cylinder 2 220 and cylinder 3 230 is used to rotate it so that cylinder 1 210, cylinder 2 220 and cylinder 3 230 are located in the same straight line. The detection component 300 is located below the turntable 240, and the angle of cylinder 2 220 is fine-tuned by the motor at the hinge of cylinder 2 220 and cylinder 3 230. The detection process is the same as the detection process for the lower side of the wing.

[0110] Compared with the existing technology, it can play a certain protective effect on the objects to be detected, effectively preventing the objects to be detected from being scratched when cleaning them, and at the same time can comprehensively clean the objects to be detected, thereby improving the cleaning effect.

[0111] Example 2

[0112] When the embodiment 1 is in use, the surface of the roller 380 is cleaned by the installed cleaning teeth 410. However, when relatively firm impurities are attached to the surface of the roller 380, the cleaning teeth 410 may be interfered with by the impurities, causing the cleaning teeth 410 to tilt and deform, making it difficult to reset. After the tilt, a larger gap will appear between the cleaning teeth 410 and the adjacent cleaning teeth 410, and some impurities will slide out through the gap, and impurities will also remain in the gap; at the same time, relatively firm impurities will interfere with the gap between the two cleaning teeth 410, causing the cleaning teeth 410 to tilt, and the impurities will pass through the gap created by the interference and tilting cleaning teeth 410. Based on this, the solution of the embodiment 1 is improved, such as Figure 5-Figure 7 As shown:

[0113] There is a gap between two adjacent cleaning teeth 410;

[0114] The number of the connecting layers 420 is the same as the number of gaps between the eight cleaning teeth 410, and they correspond one to one;

[0115] The connecting layer 420 has the same shape and size as the cleaning teeth 410. The length direction of the connecting layer 420 is parallel to the length direction of the cleaning teeth 410. The connecting layer 420 is located between two adjacent cleaning teeth 410. The bottom surfaces of both ends of the connecting layer 420 are respectively fixed to the bottom surfaces of the cleaning teeth 410 on both sides. The lower end of the connecting layer 420 is fixed to the lifting block 370.

[0116] The connecting layer 420 is made of rubber.

[0117] During use, when the cleaning teeth 410 come into contact with relatively firm impurities, the connecting layer 420 between the cleaning teeth 410 can intercept the impurities and clean them from the roller 380 .

[0118] The cleaning effect of the roller 380 can be improved. The gap between the two cleaning teeth 410 is eliminated by the connecting layer 420, which effectively prevents impurities from remaining between the cleaning teeth 410. At the same time, the connecting layer 420 is elastic and can pull the deformed cleaning teeth 410 to reset them.

[0119] Example 3

[0120] When the solution of Example 2 is in use, the roller 380 is cleaned by the installed cleaning teeth 410 and the connecting layer 420. During use, the scraped dust and debris will adhere to the cleaning teeth 410 and the connecting layer 420. After long-term use, the cleaning effect of the cleaning teeth 410 and the connecting layer 420 becomes poor. Based on this, the solution of Example 2 is improved, such as Figures 8-12 As shown:

[0121] The cleaning assembly 400 further includes a traction rope 430, a fixing plate 440, a roller 450, a groove 1 451, a groove 2 452, a rotating ring 460, a groove 3 461, an adjustment block 470 and a limit block 480;

[0122] The fixing plate 440 is fixed to the side of the lifting block 370 close to the scraper 390;

[0123] The roller 450 is rotatably connected to the fixed plate 440, and a rotating motor is provided on one side of the roller 450;

[0124] The number of the traction ropes 430 is the same as that of the cleaning teeth 410 and they correspond one to one. The traction ropes 430 are made of nylon.

[0125] One end of the traction rope 430 is fixed to the side of the cleaning tooth 410 close to the scraper 390;

[0126] The roller 450 has a groove 451 , and the groove 451 , the rotating ring 460 and the traction rope 430 are the same in number and correspond to each other.

[0127] The groove 1 451 is an annular groove, and the rotating ring 460 is a cylindrical body with a cavity. The rotating ring 460 is rotatably connected in the groove 1 451;

[0128] One end of the traction rope 430 away from the cleaning teeth 410 is fixed to the outer side wall of the rotating ring 460;

[0129] The groove 1 451 has a groove 2 452 inside, and the inner circle of the rotating circle 460 has a groove 3 461. There are six grooves 2 452 and six grooves 3 461 respectively, and they are evenly spaced. The six grooves 2 452 correspond to the six grooves 3 461 respectively.

[0130] The second groove 452 is cylindrical, the third groove 461 is an arc-shaped groove, the limit block 480 is cylindrical, and the axis of the limit block 480 is on the same straight line as the axis of the second groove 452;

[0131] The number of the adjusting blocks 470 and the limiting blocks 480 is the same as the number of the second grooves 452 , and they correspond one-to-one to the second grooves 452 ;

[0132] The adjusting block 470 is fixed to the bottom side of the second groove 452, and the limiting block 480 is slidably connected in the second groove 452. The top of the limiting block 480 is an arc shape that fits in the third groove 461.

[0133] The adjustment block 470 is a DC electromagnet that can change the magnetic poles at both ends. The limit block 480 is made of a magnet, and the expansion and contraction of the limit block 480 is controlled by the adjustment block 470 .

[0134] During use, the regulating block 470 repels the limiting block 480 so that the limiting block 480 is engaged in the groove 3 461. The rotation of the roller 450 drives the rotating ring 460 to rotate, so that the traction rope 430 drives the cleaning teeth 410 to tilt. When the cleaning teeth 410 tilt to a certain angle, the regulating block 470 and the limiting block 480 attract each other, the limiting block 480 retracts, and the cleaning teeth 410 are reset by their own elasticity and the pulling of the connecting layer 420. During the reset process, vibration is generated, which bounces off the debris and dust attached to the roller 380. At the same time, when the cleaning teeth 410 and the connecting layer 420 vibrate, the debris and dust attached to the cleaning teeth 410 and the connecting layer 420 can be shaken off. During use, the vibration frequency of the cleaning teeth 410 can be freely changed. The number of times the magnetic pole of the regulating block 470 is changed can change the number of times the limiting block 480 is extended and retracted. The more times the limiting block 480 is extended and retracted, the more times the cleaning teeth 410 can vibrate.

[0135] The cleaning effect on the surface of the roller 450 is improved by vibration, and the dust and debris attached to the surface are shaken off. At the same time, during the vibration process, the dust and debris attached to the surface of the cleaning teeth 410 and the connecting layer 420 can be shaken off; at the same time, the vibration frequency of the cleaning teeth 410 can be adjusted according to needs.

[0136] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0137] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An aircraft wing fatigue crack detection device, comprising a detection vehicle, an adjustment component, a detection component, and a cleaning component; The adjustment assembly is fixed on the inspection vehicle; The detection assembly includes a mounting block, a first mounting plate, and a second mounting plate; The first mounting plate is rotatably connected to the adjustment assembly, the mounting block is fixed on the first mounting plate, and the second mounting plate is fixed on the mounting block; The cleaning component is fixed on the detection component; It is characterized by: The detection assembly also includes a scraper; The scraper is in the shape of a triangular prism, and the length direction of the scraper is consistent with the length direction of the mounting plate 1, and the length of the scraper is the same as the length of the mounting plate 1; One side of the scraper is fixed on the second mounting plate, and the upper end of the scraper is made of rubber; The cleaning assembly includes cleaning teeth, a connecting layer, a traction rope, a fixing plate, a roller, a groove 1, a groove 2, a rotating circle, a groove 3, an adjusting block and a limiting block; The cleaning teeth are fixed on the lifting block; The connecting layer is located between two adjacent cleaning teeth, the bottom surfaces of both ends of the connecting layer are respectively fixed to the bottom surfaces of the cleaning teeth on both sides, and the lower end of the connecting layer is fixed to the lifting block; The connecting layer is made of rubber; The fixed plate is fixed on the side of the lifting block close to the scraper; The drum is rotatably connected to the fixed plate, and one side of the drum is provided with a rotating motor; One end of the traction rope is fixed to the side of the cleaning tooth close to the scraper; The drum is provided with a groove 1, the rotating ring is rotatably connected in the groove 1, and the end of the traction rope away from the cleaning teeth is fixed to the outer ring side wall of the rotating ring; Groove 2 is provided in groove 1, groove 3 is provided in the inner ring of the rotating ring, the adjusting block is fixed on the inner bottom side of groove 2, and the limiting block is slidably connected in groove 2; The regulating block is a DC electromagnet and the limiting block is made of magnet material; The adjusting block repels the limiting block, so that the limiting block is clamped in the groove three, and the traction rope drives the cleaning teeth to tilt through the rotation of the drum.

2. The aircraft wing fatigue crack detection device according to claim 1, characterized in that: The mounting block, the first mounting plate and the second mounting plate are in the shape of a rectangular parallelepiped. The mounting block, the first mounting plate and the second mounting plate have the same length direction and the same length.

3. The aircraft wing fatigue crack detection device according to claim 1, characterized in that: The adjustment assembly includes cylinder one, cylinder two, cylinder three and a turntable; The extension direction of the output end of the cylinder is perpendicular to the traveling direction of the inspection vehicle; The cylinder 1 is fixed on the inspection vehicle, the cylinder 2 is hinged on the output end of the cylinder 1, and the cylinder 3 is hinged on the output end of the cylinder 2; The turntable is cylindrical, the axis of the turntable is perpendicular to the extension direction of the third output end of the cylinder, and one side of the turntable is fixed to the third output end of the cylinder; The mounting plate is rotatably connected to the turntable; The detection assembly includes a first port, a second port, a warning light, a spring, a conductive layer, a lifting block and a roller; The mounting block is provided with a first through-hole, and the mounting plate is provided with a second through-hole. The first through-hole and the second through-hole are cylindrical, and the axes of the first through-hole and the second through-hole are on the same straight line. There are four through-holes in each of the first through-hole and the second through-hole, and the four through-holes are in one-to-one correspondence. The first through-hole and the second through-hole are connected. The diameter of the second opening is smaller than the diameter of the first opening; The number of the springs, conductive layers, lifting blocks and rollers is the same as that of the through-port 1, and they correspond to the through-ports one by one; The spring is located in the first through-port, and the lower end of the spring is fixed on the first mounting plate; The conductive layer and the lifting block are cylindrical, the axes of the conductive layer and the lifting block are in the same straight line as the axis of the first opening, the conductive layer is slidably connected in the first opening, the conductive layer is fixed to the upper end of the spring, the lifting block is slidably connected in the second opening, and the lower end of the lifting block is fixed to the conductive layer; The roller is rotatably connected to the lifting block, and the axis of the roller is parallel to the length direction of the mounting plate 1; The warning light is fixed on one side of the mounting block; There are eight cleaning teeth, which are evenly spaced and distributed, and the upper ends of the cleaning teeth are in close contact with the roller.

4. The aircraft wing fatigue crack detection device according to claim 3, characterized in that: The cylinder 2 and the cylinder 1 are driven to rotate by the motor at the hinge, and the cylinder 3 and the cylinder 2 are driven to rotate by the motor at the hinge; The extension direction of the output ends of the cylinder 2 and the cylinder 3 is perpendicular to the forward direction of the inspection vehicle; The positive pole of the warning light is connected to the first mounting plate, and the negative pole of the warning light is connected to the second mounting plate; The materials of the mounting plate 1, the mounting plate 2, the spring and the conductive layer are all conductive materials.

5. The aircraft wing fatigue crack detection device according to claim 3, characterized in that The cleaning teeth are in the shape of triangular prisms, one side of the cleaning teeth is fixed on the lifting block, and the cleaning teeth are away from the side edge fixed on the side of the lifting block and close to the roller; There is a gap between two adjacent cleaning teeth; the number of the connecting layers is the same as the number of the gaps between the eight cleaning teeth, and they correspond one to one; The shape and size of the connecting layer are the same as those of the cleaning teeth, and the length direction of the connecting layer is parallel to the length direction of the cleaning teeth.

6. The aircraft wing fatigue crack detection device according to claim 5, characterized in that The shape and size of the connecting layer are the same as those of the cleaning teeth, and the length direction of the connecting layer is parallel to the length direction of the cleaning teeth.

7. The aircraft wing fatigue crack detection device according to claim 5, characterized in that: The number of the traction ropes is the same as the number of the cleaning teeth, and they correspond one to one; The number of the grooves, the rotating rings and the pulling ropes are the same and correspond to each other one by one; The groove 1 is an annular groove, and the rotating ring is a cylindrical shape with a cavity; There are six grooves 2 and 3 respectively, and they are evenly spaced, and the six grooves 2 correspond to the six grooves 3 respectively. The number of the adjusting blocks and the limiting blocks is the same as that of the groove 2, and they correspond one-to-one with the groove 2 respectively; The top end of the limiting block is in an arc shape that fits the groove in three directions.

8. The aircraft wing fatigue crack detection device according to claim 7, characterized in that: The traction rope is made of nylon.

9. The aircraft wing fatigue crack detection device according to claim 7, characterized in that: The second groove is cylindrical, the third groove is an arc-shaped groove, the limiting block is cylindrical, and the axis of the limiting block is on the same straight line as the axis of the second groove.

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