An aircraft belly fin repair and transport kit

Abstract

The utility model relates to the technical field of aircraft repair and transportation, and particularly relates to an aircraft ventral fin repair and transportation tool, which comprises a frame body, a plurality of groups of wheels arranged at the bottom end of the frame body, a fixing assembly arranged on the frame body and used for determining the position of the ventral fin structure, a steering assembly used for conveniently dragging the frame body and each component on the frame body, a fixed clamping plate with a V-shaped groove and a movable clamping plate, the interface change structure design advantage of the V-shaped groove is utilized to realize the fixing, horizontal placement and transportation of the ventral fin structure, and limiting stoppers are arranged in front of and behind the ventral fin structure to prevent the ventral fin structure from moving forward and backward during transportation and to avoid the damage of the product during transportation or parking.

Description

Technical Field

[0001] This utility model relates to the field of aircraft repair and transportation technology, specifically a tooling for repairing and transporting aircraft ventral fins. Background Technology

[0002] The ventral fin of an aircraft is an important component installed under the aircraft fuselage. It is a crucial part for directional stability and directional maneuverability during flight. It has a trapezoidal, shell-like structure with an offset center of gravity. Its external structural diagram is shown below. Figure 1 The structure of the ventral fin is shown. The ventral fin is relatively large, generally a hybrid structure of composite materials and metals, requiring high surface quality and extremely sensitive to external impact damage. Its vertical cross-section is V-shaped, and its center of gravity is not at the geometric center. During high-speed flight and turns, the ventral fin is subjected to constant surface air friction forces. Prolonged service and training lead to a decline in the structural performance of the ventral fin. Under harsh environments such as humidity, salinity, and extreme temperatures, the ventral fin may experience structural cracks, metal corrosion, delamination of internal structures, and loosening of fasteners, endangering flight safety. Therefore, specialized tooling is required for the repair, storage, and relocation of the ventral fin during aircraft maintenance both in-house and out-of-house.

[0003] During aircraft maintenance both inside and outside the airfield, the ventral fin needs to be disassembled from the fuselage to facilitate inspection, non-destructive testing, and off-ground repair work.

[0004] Therefore, it is necessary to design a special tooling with high structural conformity, safe, stable and reliable transportation process to realize the parking, transportation and repair of the ventral fin after it is removed from the aircraft, so as to meet the technical requirements of aircraft ventral fin removal maintenance. Summary of the Invention

[0005] To address the aforementioned problems, this utility model proposes a tooling for repairing and transporting aircraft ventral fins.

[0006] A tooling for repairing and transporting an aircraft ventral fin includes a frame that is movable, and also includes a fixing component mounted on the frame for determining the position of the ventral fin structure, and a steering component for facilitating the dragging of the frame and various components on the frame. The fixing components include a stop support, a limiting component and a fixing clamp plate installed on the frame, and a movable clamp plate that cooperates with the fixing clamp plate.

[0007] Furthermore, the limiting component includes a front limiting bracket and a rear limiting bracket respectively disposed at the front end and rear end of the frame, and limiting blocks disposed at the upper end of both the front limiting bracket and the rear limiting bracket.

[0008] Furthermore, the tilt angle between the limiting block and the front limiting bracket and the rear limiting bracket is adjusted by bolts.

[0009] Furthermore, both the fixed clamp and the movable clamp are provided with V-shaped grooves.

[0010] The beneficial effects of this utility model are: This utility model uses a fixed clamp plate with a V-groove and a movable clamp plate, and takes advantage of the interface change structure design of the V-groove to realize the fixing, flat placement and transportation of the ventral fin structure. At the same time, there are limiting blocks set at the front and rear to prevent the ventral fin structure from moving back and forth during transportation, thus avoiding damage to the product during transportation or parking. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the pull rod of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the pull rod of this utility model. Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the fixed clamping plate and the movable clamping plate of this utility model; Figure 6 This is a schematic diagram of the assembly structure of the ventral fin structure of this utility model in a vertically placed state with the fixed clamping plate and the movable clamping plate. Figure 7 This is a schematic diagram of the assembly structure of the ventral fin structure of this utility model in a horizontally placed state with the fixed clamping plate and the movable clamping plate. Reference numerals: 01, ventral fin structure; 02, tie rod; 03, quick-release pin; 04, steering linkage; 05, front axle; 06, stop support; 07, front limit bracket; 08, movable clamping plate; 09, fixed clamping plate; 10, quick-release bolt; 11, rear limit bracket; 12, limit stop block; 13, wheel; 14, rear axle; 15, frame. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0014] like Figures 1 to 7 As shown, an aircraft ventral fin repair and transportation tooling includes a frame 15, which is movable, that is, a number of sets of wheels 13 set at the bottom of the frame 15 are movable. The wheels are made of all rubber material and are used for the movement and shock absorption of the tooling. It also includes a fixing component installed on the frame 15 to determine the position of the ventral fin structure 01, and a steering component to facilitate dragging the frame 15 and the various components on the frame 15. The fixing components include a stop support 06, a limiting component and a fixing clamp 09 mounted on the frame 15, and a movable clamp 08 that cooperates with the fixing clamp 09. Through the fixing clamp 09 and the movable clamp 08 with V-grooves, the V-groove interface variation structure design advantage enables the fixing, flat placement, and transportation of the ventral fin structure 01. Simultaneously, limiting blocks 12 are provided at both the front and rear, effectively ensuring the forward and backward movement of the ventral fin structure 01 during transportation and preventing damage to the product during transport or storage.

[0015] like Figure 1 As shown, the stop support 06 is equipped with a threaded handle, which can rotate the stop support 06 to contact the ground and fix it. By rotating the screw rod, the fixed support is driven to contact the ground, so as to fix the tooling when it is parked.

[0016] like Figure 1 As shown, the limiting component includes a front limiting bracket 07 and a rear limiting bracket 11 respectively set at the front and rear ends of the frame 15, and limiting blocks 12 set at the upper ends of the front limiting bracket 07 and the rear limiting bracket 11. After being embedded, the quick-release bolts 10 installed on the fixed clamping plate 09 are reinstalled, so that the movable clamping plate 08 and the fixed clamping plate 09 are assembled to fix the ventral fin structure 01.

[0017] The tilt angle of the limiting block 12 with the front limiting bracket 07 and the rear limiting bracket 11 is adjusted by bolts. After the angle is adjusted, the front and rear end faces of the ventral fin structure 01 can fit and be fixed better, which improves the overall stability.

[0018] The fixed clamp 09 and the movable clamp 08 are connected by quick-release bolts 10. In practical applications, four sets of quick-release bolts 10 can be set. Removing the quick-release bolts 10 will open the movable clamp 08. Of course, the number can be increased or decreased according to actual needs.

[0019] As a specific embodiment of this utility model, two sets of fixed clamping plates 09 and movable clamping plates 08 are provided at the front and rear of the frame 15, respectively. The upper opening is large and the lower opening is small, and the cross-section is V-shaped. The surface of the clamping plates is covered with rubber for protection of the contact surface when the ventral fins are placed and for shock absorption during transportation.

[0020] like Figure 1 As shown, the middle part of the ventral fin structure 01 is restricted within the V-grooves provided on both the fixed clamp 09 and the movable clamp 08. The front and rear ends of the ventral fin structure 01 are respectively restricted by the limiting block 12 on the front limiting bracket 07 and the limiting block 12 on the rear limiting bracket 11 to form a stable fixing method.

[0021] Specifically, the fixed clamping plate 09 and the movable clamping plate 08 are connected by two sets of quick-release bolts 10, allowing the movable clamping plate 08 to be adjusted to a 90° angle with the fixed clamping plate 09 during maintenance of the ventral fin structure 01, thus achieving a horizontal placement. The quick-release bolts 10 also secure the movable clamping plate 08 to the fixed clamping plate 09, enabling the ventral fin structure 01 to be placed horizontally for maintenance. Figure 6 and Figure 7 The status adjustment diagram is shown.

[0022] exist Figure 6 In the state shown, both the fixed clamping plate 09 and the movable clamping plate 08 are provided with V-shaped grooves. By adjusting the angle of the limiting blocks 12 on the front limiting bracket 07 and the rear limiting bracket 11, the front and rear end faces of the ventral fin structure 01 are fixed, and the ventral fin structure 01 is placed on the transport fixture.

[0023] The steering assembly includes a front axle 05 and a rear axle 14 mounted on the frame 15, a steering linkage 04 mounted at the front end of the frame 15, and a tie rod 02 that cooperates with the steering linkage 04. Several sets of wheels 13 are respectively mounted on the front axle 05 and the rear axle 14. During transportation, the tie rod 02 is used to manually adjust and drive the steering linkage 04 to rotate. Under the action of the steering linkage 04, the two sets of front wheels mounted on the front axle 05 turn left and right to achieve directional adjustment during transportation.

[0024] The steering linkage 04 and the tie rod 02 are connected by a quick-release pin 03, which enables the tooling to be turned during transportation.

[0025] The quick-release pin 03 is used for the mechanical connection between the tie rod 02 and the frame 15. When the device is parked in a normally lit state, the tie rod 02 can be separated from the frame 15 by removing the quick-release pin 03. After the tie rod 02 is removed, it can be placed separately, which can save tooling space.

[0026] The specific steps are as follows: Step 1: Rotate the stop support 06 until it contacts and locks with the ground to secure the tooling. Then, vertically insert the aircraft's ventral fin into the V-shaped groove formed by the movable clamp 08 and the fixed clamp 09. Step 2: Adjust the height of the front limiting bracket 07 and the rear limiting bracket 11 so that the limiting block 12 contacts the end face of the ventral fin structure 01; after contact, adjust the direction of the limiting block 12 according to the orientation of the ventral fin structure 01 so that the limiting block 12 plays the role of fixing, supporting and limiting. Step 3: When it is necessary to transport the aircraft ventral fin structure 01, the quick release pin 03 is used to connect the tie rod 02 and the steering linkage 04, the lifting stop support 06 is rotated and the maintenance personnel pull the tie rod 02 and the drive steering linkage 04 to realize the transportation and steering of the aircraft ventral fin. Step 4: When it is necessary to park the aircraft ventral fin structure 01, the quick-release pin 03 is removed to disengage the tie rod 02 from the steering linkage 04, saving the space occupied by the tooling; at the same time, the stop support 06 is rotated to lift the wheel set off the ground, ensuring the fixation of the tooling and avoiding long-term pressure on the wheel set. Step 5: When it is necessary to repair the ventral fin structure 01 of the aircraft, repeat the above four steps, fix the tooling securely, remove the two sets of quick-release bolts 10 between the fixed clamp 09 and the movable clamp 08, adjust the movable clamp 08 so that the angle between it and the fixed clamp 09 is 90°, and place the movable clamp 08 in a horizontal position. Place the ventral fin flat on the platform formed by the movable clamp 08 to facilitate the maintenance work.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for repairing and transporting aircraft ventral fins, comprising a frame (15) capable of movement, characterized in that: It also includes a fixing component set on the frame (15) to determine the position of the ventral fin structure (1), and a steering component to facilitate dragging the frame (15) and the various components on the frame (15); The fixing components include a stop support (06), a limiting component and a fixing clamp (09) set on the frame (15), and a movable clamp (08) that cooperates with the fixing clamp (09).

2. The aircraft ventral fin repair and transportation fixture according to claim 1, characterized in that: The stop support (06) is provided with a threaded handle.

3. The aircraft ventral fin repair and transportation fixture according to claim 1, characterized in that: The limiting components include a front limiting bracket (07) and a rear limiting bracket (11) respectively set at the front and rear ends of the frame (15), and limiting blocks (12) set at the upper ends of the front limiting bracket (07) and the rear limiting bracket (11).

4. The aircraft ventral fin repair and transportation fixture according to claim 3, characterized in that: The limiting block (12) is inclined at an angle with the corresponding front limiting bracket (07) and rear limiting bracket (11) by bolts.

5. The aircraft ventral fin repair and transportation fixture according to claim 3, characterized in that: The fixed clamp (09) and the movable clamp (08) are connected by quick-release bolts (10).

6. The aircraft ventral fin repair and transportation fixture according to claim 3, characterized in that: Both the fixed clamp (09) and the movable clamp (08) are provided with V-grooves.

7. The aircraft ventral fin repair and transportation fixture according to claim 1, characterized in that: The steering assembly includes a front axle (05) and a rear axle (14) mounted on the frame (15), a steering linkage (04) mounted at the front end of the frame (15), and a tie rod (02) that cooperates with the steering linkage (04).

8. The aircraft ventral fin repair and transportation fixture according to claim 7, characterized in that: The steering linkage (04) and the tie rod (02) are connected by a quick-release pin (03).

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