Maintenance device for maintenance operation of wings of civil aircraft

Abstract

The invention relates to the technical field of aircraft wing maintenance devices, and particularly discloses a maintenance device for civil aircraft wing maintenance operation, which comprises a mobile platform movably mounted on a rack; the first lifting platform is mounted on the moving platform in a lifting manner; the multiple pairs of supporting components are installed in the first lifting platform in an up-down sliding mode. The plurality of supporting blocks are rotatably mounted on each supporting component; the floating positioning blocks can be installed in the lifting platform in an up-down sliding mode, and the supporting components are arranged in the floating positioning blocks in a sliding and sleeved mode; the elastic component abuts against the floating positioning block supporting component; the adjusting assembly is used for adjusting the height of the floating positioning block; the positioning part is used for fixing the floating positioning block; the control component is at least electrically connected with the adjusting component and the positioning component; the supporting area of the supporting block on the upper surface of the wing can be effectively guaranteed, the supporting effectiveness is guaranteed, and repairing work of maintenance personnel on cracks is facilitated.

Description

Technical Field

[0001] This invention relates to the technical field of aircraft wing maintenance equipment, and more particularly to a maintenance equipment for civil aircraft wing maintenance operations. Background Technology

[0002] During operation, civil aircraft require regular inspections and maintenance. This includes detecting and repairing early cracks in aircraft components to prevent further cracking or breakage, which is crucial for preventing aviation accidents. For example, Chinese patent application number CN202211240398.7 discloses an aircraft wing maintenance device and method. It states that push plates located on both sides of a wing move towards each other and abut against the sliding parts of all drive bars, causing the drive surfaces of the drive units to gradually overlap with the guide surfaces, lifting each support column. This allows the support columns to abut against the wing, providing vertical support force to the wing, thus simultaneously supporting damaged areas at different locations on the wing, facilitating repair work by operators.

[0003] In the above technical solution, the surface of the wing is abutted by the support column to provide vertical support for the wing; it is known that the wing of an aircraft is usually an irregular shape of "flat at the bottom and convex at the top", and the orientation of the cracks on the upper surface of the wing is also random.

[0004] However, the shape of the support column in the above technical solution is fixed, so the support column cannot adapt to the shape of the upper surface of the aircraft wing. The contact area of ​​the support column with the upper surface of the aircraft wing is small, and the support force on both sides of the damaged area is poor. Therefore, how to provide effective support on both sides of cracks in different orientations on the upper surface of the aircraft wing to facilitate the repair of the damaged area of ​​the wing by the staff is an urgent problem to be solved. Summary of the Invention

[0005] In view of the above problems, the present invention provides a maintenance device for civil aircraft wing maintenance operations, the purpose of which is to improve the effectiveness and uniformity of support for the upper surface of the wing, so as to facilitate maintenance personnel to repair cracks.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A maintenance device for civil aircraft wing maintenance is provided, comprising: a frame; a mobile platform movably mounted on the frame and positioned above the aircraft wing; a first lifting platform movably mounted on the mobile platform; a plurality of pairs of support components slidably mounted vertically within the first lifting platform; a plurality of support blocks rotatably mounted on each support component for pressing against the upper surface of the wing; a plurality of floating positioning blocks slidably mounted vertically within the lifting platform, with the support components slidably fitted within the floating positioning blocks; an elastic component, having elasticity, with one end abutting against the floating positioning block and the other end abutting against the support component; an adjustment assembly for acquiring the contour information of the upper surface of the wing and adjusting the height of the floating positioning blocks; a positioning component for fixing the floating positioning blocks; a control component electrically connected to at least the adjustment assembly and the positioning component; a first drive assembly for driving the mobile platform to move; and a second drive assembly for driving the lifting platform to rise and fall.

[0007] Furthermore, the adjustment components include: a second lifting platform, which is movably mounted on the movable platform and located on one side of the first lifting platform; a movable component, which is movably mounted on the second lifting platform; a trigger rod, one end of which is fixedly mounted on the floating positioning block, and the other end of which extends horizontally out of the first lifting platform; a slide rod, which is slidably mounted on the movable component, one end of which is used to contact the surface on the wing, and the other end of which is used to abut the trigger rod; and a third drive component, which is used to drive the second lifting platform to lift.

[0008] Furthermore, the adjustment assembly also includes a first roller and a second roller, which are rotatably mounted at both ends of the slide bar, respectively.

[0009] Furthermore, the adjustment assembly also includes a light transmitter and a receiver, the light transmitter being mounted on the moving part, the receiver being mounted inside each trigger lever, and the receiver being positioned on the moving path of the light transmitter.

[0010] Furthermore, the maintenance device also includes: an installation groove, which is opened in the first lifting platform, and a floating positioning block is slidably disposed in the installation groove; a first limiting block and a second limiting block, which are fixedly installed on the support component and are respectively located on the upper and lower sides of the floating positioning block; wherein, the elastic component is a spring, which is sleeved on the support component and is located between the second limiting block and the floating positioning block.

[0011] Furthermore, the positioning component is an electromagnet, which is fixedly installed inside the first lifting platform, located on one side of the floating positioning hole, and the electromagnet can attract the floating positioning block when energized.

[0012] Furthermore, the maintenance device also includes several sets of scissor lifts located on the underside of the wing to support it.

[0013] Furthermore, the maintenance device also includes: wheels that are rotatably mounted on the frame and capable of rolling contact with the ground.

[0014] Furthermore, the maintenance device also includes: a rotating shaft, which is disposed within the support component, and a support block is rotatably sleeved on the rotating shaft; a torsion spring, which is sleeved on the rotating shaft, with its two ends inserted into the support block and the support component respectively; and the two sides of the support block are arc surfaces, with a clearance groove provided on one side of the support block.

[0015] The beneficial effects of this invention are as follows: by using this invention, the damaged area can be pressed and supported along the contour of the upper surface of the wing, which can meet the support requirements of the irregular shape of the aircraft wing, which is "flat at the bottom and convex at the top". By adjusting the installation orientation of the frame, the support requirements of cracks in different orientations on the upper surface of the wing can be met. The support block can adapt to the shape changes of the upper surface of the wing, which can effectively ensure the support area of ​​the support block on the upper surface of the wing, ensure the support effectiveness, and facilitate the repair work of the cracks by maintenance personnel. The height of the floating positioning blocks can be adjusted in advance by adjusting the components, and the center of gravity of several floating positioning blocks can be distributed along the outer contour of the wing to adjust the distance between the floating positioning blocks and the upper surface of the wing. During the subsequent process of the support blocks pressing against the upper surface of the wing, as several second limit blocks press several elastic components, it can ensure that the compression stroke of several elastic components can be close to the same, which can effectively reduce the difference in the magnitude of the support force of several support blocks on the upper surface of the wing and improve the uniformity of support on the upper surface of the wing. By setting the first positioning block, the support component can be lifted during the process of adjusting the height of the floating positioning block. The support block can be set in advance along the contour of the upper surface of the wing. Subsequently, when the first lifting platform descends, several support blocks can press against the upper surface of the wing simultaneously, which can further improve the uniformity of the force on the upper surface of the wing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the maintenance device provided in the embodiments of this application.

[0017] Figure 2 The installation front view of the first lifting platform provided in the embodiment of this application.

[0018] Figure 3 This is a side view of the installation of the first lifting platform provided in an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the adjustment component adjusting the floating positioning block provided in the embodiments of this application.

[0020] Figure 5 This is a top view of the installation of adjacent support blocks provided in an embodiment of this application.

[0021] Among them, 1. Frame; 11. Moving platform; 12. Walking wheel; 2. First lifting platform; 21. Support component; 22. Support block; 23. Floating positioning block; 24. Elastic component; 3. Second lifting platform; 31. Moving component; 32. Trigger rod; 33. Slide rod; 34. First roller; 35. Second roller; 36. Light emitter; 37. Receiver; 41. First limit block; 42. Second limit block; 51. Electromagnet; 6. Scissor lift; 7. Wing. Detailed Implementation

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1 and Figure 2 As shown in the embodiment of this application, a maintenance device for civil aircraft wing maintenance is disclosed, comprising: a frame 1; a mobile platform 11, movably mounted on the frame 1 and positioned above the aircraft wing 7; a first lifting platform 2, movably mounted on the mobile platform 11; a plurality of pairs of support components 21, slidably mounted up and down within the first lifting platform 2; a plurality of support blocks 22, rotatably mounted on each support component 21 for pressing against the upper surface of the wing 7; a plurality of floating positioning blocks 23, slidably mounted up and down within the lifting platform, with the support components 21 slidably fitted within the floating positioning blocks 23; an elastic component 24, having elasticity, with one end abutting against the floating positioning block 23 and the other end abutting against the support component 21; an adjustment component for collecting contour information of the upper surface of the wing 7 and adjusting the height of the floating positioning block 23; a positioning component for fixing the floating positioning block 23; a control component, at least electrically connected to the adjustment component and the positioning component; a first drive component for driving the mobile platform 11 to move; and a second drive component for driving the lifting platform to rise and fall.

[0024] In practical use, maintenance work is carried out on the wing 7 of an aircraft in the maintenance workshop. The frame 1 spans above the wing 7, and the moving platform 11 is located on the upper side of the wing 7. When maintenance personnel need to repair the damaged area on the upper surface of the wing 7, they first activate the first drive component to move the moving platform 11 above the damaged area, with several pairs of support components 21 positioned on both sides of the crack. Then, the adjustment component is activated to collect the contour of the upper surface of the wing 7 and adjust the height of the floating positioning blocks 23. The center of gravity of several floating positioning blocks 23 is distributed along the contour of the upper surface of the wing 7, resulting in floating positioning blocks 23 that are distributed in an orderly manner along the outer contour of the upper surface of the wing 7. Finally, the second drive component is activated to drive the lifting platform to descend. The support components 21 squeeze the elastic components 24, and the support blocks 22 abut against the upper surface of the wing 7 and rotate to adjust until the support blocks 22 press against the upper surface of the wing 7. This achieves support on both sides of the crack in the damaged area of ​​the wing 7, making it easier for maintenance personnel to repair the damaged area of ​​the wing 7.

[0025] By using this invention, the damaged area can be pressed and supported along the contour of the upper surface of the wing 7, which can meet the support requirements of the irregular shape of the aircraft wing 7, which is "flat at the bottom and convex at the top". By adjusting the installation orientation of the frame 1, the support requirements of cracks in different orientations on the upper surface of the wing 7 can be met. The support block 22 can adapt to the shape changes of the upper surface of the wing 7, which can effectively ensure the support area of ​​the support block 22 on the upper surface of the wing 7, ensure the support effectiveness, and facilitate the repair work of the cracks by maintenance personnel.

[0026] In this embodiment, the first drive component is an existing linear drive module, which can be a ball screw type or a linear motor type, as long as it can realize the linear movement of the moving platform 11. The specific structure and installation are well known in the art and will not be described in detail here.

[0027] In this embodiment, the second drive component is an existing hydraulic cylinder. The main body of the hydraulic cylinder is fixedly installed on the mobile platform 11. The piston rod of the hydraulic cylinder is connected to the first lifting platform 2 through a flange. The hydraulic cylinder is connected to an existing hydraulic station on the market. The hydraulic station drives the piston rod of the hydraulic cylinder to perform telescopic movement, thereby realizing the movement of the first lifting platform 2.

[0028] Reference Figure 2 , Figure 3 and Figure 4As shown, in this invention, the adjustment assembly includes: a second lifting platform 3, which is movably mounted on the mobile platform 11 and located on one side of the first lifting platform 2; a moving component 31, which is movably mounted on the second lifting platform 3; a trigger rod 32, one end of which is fixedly mounted on the floating positioning block 23, and the other end of which extends horizontally out of the first lifting platform 2; a slide rod 33, which is slidably mounted on the moving component 31, one end of which is used to contact the surface on the wing 7, and the other end of which is used to abut the trigger rod 32; and a third drive assembly for driving the second lifting platform 3 to rise and fall.

[0029] Reference Figure 3 and Figure 4 As shown, in the initial state, under the action of gravity, several floating positioning blocks 23 fall naturally and are on the same horizontal plane. When it is necessary to adjust the center of the floating positioning blocks 23, the second lifting platform 3 is lowered by the third drive component until one end of the slide bar 33 touches the upper surface of the aircraft wing 7. Then the moving component 31 is activated, and the moving component 31 moves in a straight line. One end of the slide bar 33 moves along the upper surface of the wing 7 to complete the acquisition of the contour information of the upper surface of the wing 7. The other end of the slide bar 33 moves up and down with the change of the upper surface contour of the wing 7, physically transmitting the contour information of the upper surface of the wing 7 to the trigger rod 32. The other end of the slide bar 33 pushes several trigger rods 32 in sequence, causing the floating positioning blocks 23 to slide upward. The positioning component is activated simultaneously to fix the floating positioning blocks 23 in the corresponding position, completing the height adjustment of the floating positioning blocks 23.

[0030] By using this invention, the height of the floating positioning block 23 can be adjusted in advance by adjusting the components, and the center of gravity of several floating positioning blocks 23 can be distributed along the outer contour of the wing 7, thereby adjusting the distance between the floating positioning block 23 and the upper surface of the wing 7. During the subsequent process of the support block 22 pressing against the upper surface of the wing 7, when several second limiting blocks 42 press several elastic components 24, it can be ensured that the compression stroke of several elastic components 24 can be approximately the same, which can effectively reduce the difference in the magnitude of the support force of several support blocks 22 on the upper surface of the wing 7 and improve the uniformity of support on the upper surface of the wing 7.

[0031] In this embodiment, the third drive component is a commercially available lead screw lifting platform. The output shaft of the servo motor is connected to the lead screw lifting platform through gear transmission. By changing the rotation direction of the output shaft of the servo motor, the lifting motion of the second lifting platform 3 can be realized. The specific selection and installation of the lead screw lifting platform and the servo motor are well known in the art and will not be described in detail here.

[0032] It is understood that the moving part 31 can be driven by existing linear drive modules on the market, such as ball screw type or linear motor type, as long as it can realize the linear movement of the moving part 31. The specific structure and installation are well known in the art and will not be described in detail here.

[0033] Continue to refer to Figure 4 As shown, in this embodiment, the adjustment assembly further includes: a first roller 34 and a second roller 35, which are rotatably mounted on both ends of the slide bar 33 respectively; the first roller 34 and the second roller 35 can be rotatably mounted on both ends of the slide bar 33 through bearings, respectively rolling contact with the trigger rod 32 and the upper surface of the wing 7 to reduce wear.

[0034] Combination Figure 3 As shown, the adjustment assembly also includes a light transmitter 36 and a receiver. The light transmitter 36 is mounted on the moving part 31, and the receiver is mounted in each trigger lever 32 and is located on the moving path of the light transmitter 36.

[0035] Specifically, both the light emitter 36 and the receiver 37 are commercially available through-beam photoelectric switches. When the moving part 31 moves, the slide bar 33 lifts the trigger rod 32 to complete the positioning of the floating positioning block 23. At this time, the light emitted by the light emitter 36 is parallel to the radial direction of the first roller 34 and shines on the receiver. The receiver transmits an electrical signal to the control part, and the control part transmits an electrical signal to the positioning part. The positioning part is activated to fix the floating positioning block 23. Similarly, the positioning and fixing process of the other floating positioning blocks 23 can be obtained.

[0036] It is understandable that both the light transmitter 36 and the receiver can be powered by batteries, and the control unit can wirelessly connect to the light transmitter 36, the receiver and the positioning unit through existing wireless connection technologies (Bluetooth, WiFi, etc.) to complete the transmission of start and stop modes.

[0037] It is worth mentioning that the control component can be a programmable logic controller (PLC), and those skilled in the art can implement automatic start-stop control using a PLC programming language.

[0038] Reference Figure 2 As shown, in this embodiment, the maintenance device further includes: a mounting groove, which is opened in the first lifting platform 2, and a floating positioning block 23 is slidably disposed in the mounting groove; a first limiting block 41 and a second limiting block 42, which are fixedly installed on the support component 21 and are respectively located on the upper and lower sides of the floating positioning block 23; wherein, the elastic component 24 is a spring, which is sleeved on the support component 21 and is located between the second limiting block 42 and the floating positioning block 23.

[0039] In this embodiment, by setting the first limiting block 41 and the second limiting block 42, the floating positioning block 23 and the spring can be prevented from falling off, ensuring the normal operation of the overall device. By setting the first positioning block, the support component 21 can be lifted during the process of adjusting the height of the floating positioning block 23, and the support block 22 can be set in advance along the contour of the upper surface of the wing 7. Subsequently, when the first lifting platform 2 descends, several support blocks 22 can simultaneously press against the upper surface of the wing 7, which can further improve the uniformity of the force on the upper surface of the wing 7.

[0040] In some embodiments, the first limiting block 41 can be removed, but the support member 21 needs to be extended.

[0041] Reference Figure 3 As shown, in this embodiment, the positioning component is an electromagnet 51, which is fixedly installed in the first lifting platform 2, located on one side of the floating positioning hole, and the electromagnet 51 can attract the floating positioning block 23 when energized.

[0042] It is understandable that the floating positioning block 23 can be made of iron. By energizing the electromagnet 51, the floating positioning block 23 can be fixed and attracted. When the electromagnet 51 is de-energized, the floating positioning block 23 will fall off under the action of gravity.

[0043] Combination Figure 1 As shown, the maintenance device also includes several sets of scissor lifts 6, which are located on the underside of the wing 7 to support the wing 7. It is understood that the scissor lifts 6 can be any existing models available on the market. By supporting the underside of the wing 7 with the scissor lifts 6, the maintenance operation can be further ensured to proceed stably.

[0044] In this embodiment, the maintenance device further includes: a traveling roller, which is rotatably mounted on the frame 1 and can roll in contact with the ground; the traveling roller 12 can be driven by a servo motor, and the output shaft of the servo motor is connected to the traveling roller 12 through a gearbox; maintenance personnel can drive the traveling roller 12 to rotate by the servo motor, thereby adjusting the installation position of the frame 1 and the installation position of the support component 21, so as to meet the pressure support requirements of cracks in different orientations.

[0045] It is worth mentioning that hydraulic cylinders can be added around the walking wheels 12 on the frame 1. The hydraulic cylinders are also connected to the hydraulic station. After the frame 1 is moved to the required position, the piston rods of the hydraulic cylinders around the walking wheels 12 are extended, which can lift the walking wheels 12 off the ground and improve the support stability of the frame 1.

[0046] In this embodiment, the maintenance device further includes: a rotating shaft disposed within the support component 21, with the support block 22 rotatably mounted on the rotating shaft; a torsion spring mounted on the rotating shaft, with both ends of the torsion spring inserted into the support block 22 and the support component 21 respectively; and the two sides of the support block 22 are arc surfaces, with a clearance groove provided on one side of the support block 22.

[0047] In the initial state, the torsion spring (not shown in the figure) is in a relaxed state. The first lifting platform 2 descends until it contacts the support block 22 and the upper surface of the aircraft, which can twist and deform the torsion spring, press the support block 22 to rotate around the axis until the support block 22 presses against the outer contour of the upper surface of the aircraft wing 7. After the first lifting platform 2 rises, the support block 22 can be reset under the action of the torsion spring to restore its deformation.

[0048] Reference Figure 4 and Figure 5 As shown, the two sides of the support block 22 are arc surfaces to prevent scratching the upper surface of the wing 7. In addition, a relief groove is provided on one side of the support block 22, and one side of the adjacent support block 22 can be embedded in the relief groove. The adjacent support blocks 22 are embedded in each other, which can improve the integrity of several support blocks 22 and further improve the stability of the support for the upper surface of the aircraft wing 7.

[0049] Those skilled in the art will understand that although preferred embodiments of the invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention. Clearly, those skilled in the art can make various alterations and modifications to the invention without departing from its spirit and scope. Thus, if these modifications and modifications of the invention fall within the scope of the claims of the invention and their equivalents, the invention also intends to include these modifications and modifications.

Claims

1. A maintenance device for civil aircraft wing maintenance operations, characterized in that, include: Rack (1); The mobile platform (11) is movably mounted on the frame (1) and located above the aircraft wing (7); The first lifting platform (2) is installed on the mobile platform (11) in a lifting manner; Several pairs of support components (21) are slidably installed inside the first lifting platform (2); Several support blocks (22) are rotatably mounted on each support component (21) for pressing against the upper surface of the wing (7); Several floating positioning blocks (23) are slidably installed in the lifting platform, and the support component (21) is slidably fitted inside the floating positioning blocks (23); The elastic component (24) is elastic, with one end abutting against the floating positioning block (23) and the other end abutting against the support component (21); Adjustment components are used to collect contour information of the upper surface of the wing (7) and adjust the height of the floating positioning block (23); Positioning components are used to fix the floating positioning block (23); Control components, including at least electrically connected adjustment and positioning components; The first driving component is used to drive the mobile platform (11) to move; The second drive component is used to drive the lifting platform to move up and down.

2. The maintenance device for civil aircraft wing maintenance operations according to claim 1, characterized in that, The adjustment components include: The second lifting platform (3) is installed on the mobile platform (11) in a height-adjustable manner and is located on one side of the first lifting platform (2); The movable component (31) is movably mounted on the second lifting platform (3); The trigger rod (32) is fixedly installed at one end on the floating positioning block (23), and extends horizontally out of the first lifting platform (2) at the other end; The slide bar (33) is slidably mounted on the moving part (31), with one end for contacting the surface on the wing (7) and the other end for abutting the trigger rod (32); The third drive component is used to drive the second lifting platform (3) to rise and fall.

3. The maintenance device for civil aircraft wing maintenance operations according to claim 2, characterized in that, The adjustment assembly also includes a first roller (34) and a second roller (35), which are rotatably mounted at both ends of the slide bar (33).

4. The maintenance apparatus for civil aircraft wing maintenance operations according to claim 2, characterized in that, The adjustment assembly also includes a light emitter (36) and a receiver, the light emitter (36) being mounted on the moving part (31) and the receiver being mounted in each trigger lever (32) and positioned on the moving path of the light emitter (36).

5. The maintenance apparatus for civil aircraft wing maintenance operations according to claim 1, characterized in that, Also includes: The mounting slot is located inside the first lifting platform (2), and the floating positioning block (23) is slidably set inside the mounting slot; The first limiting block (41) and the second limiting block (42) are fixedly installed on the support component (21) and are located on the upper and lower sides of the floating positioning block (23), respectively. Among them, the elastic component (24) is a spring, which is sleeved on the support component (21) and located between the second limiting block (42) and the floating positioning block (23).

6. The maintenance apparatus for civil aircraft wing maintenance operations according to claim 1, characterized in that, The positioning component is an electromagnet (51), which is fixedly installed in the first lifting platform (2) and located on one side of the floating positioning hole. When the electromagnet (51) is energized, it can attract the floating positioning block (23).

7. The maintenance apparatus for civil aircraft wing maintenance operations according to claim 1, characterized in that, Also includes: Several sets of scissor lifts (6) are installed on the underside of the wing (7) to support the wing (7).

8. The maintenance apparatus for civil aircraft wing maintenance operations according to claim 1, characterized in that, Also includes: The traveling wheels (12) are rotatably mounted on the frame (1) and are able to roll in contact with the ground.

9. The maintenance apparatus for civil aircraft wing maintenance operations according to claim 1, characterized in that, Also includes: A rotating shaft is disposed within a support component (21), and a support block (22) is rotatably sleeved on the rotating shaft; A torsion spring is sleeved on the rotating shaft, with its two ends inserted into the support block (22) and the support component (21) respectively; and the two sides of the support block (22) are arc surfaces, with a clearance groove opened on one side of the support block (22).

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