Multi-purpose aircraft brake assembly tool

Abstract

The utility model relates to a multifunctional aircraft brake assembly dismounting tool and relates to the field of aircraft maintenance tools. The brake assembly is located in a clamping ring, and then the clamping ring is locked and fixed with the brake assembly through a locking mechanism. After the connecting bolt of the brake assembly and the aircraft main landing gear is loosened, the brake assembly acts on the whole dismounting tool as a whole, and then the chassis is moved outward to make the brake assembly leave the aircraft main landing gear axle. The clamping ring is rotated 90 degrees through a rotating mechanism to realize the rotation of the brake assembly by 90 degrees and ensure that the actuating cylinder side faces upward. Then the lifting device is connected with the lifting point on the brake assembly, the locking mechanism is loosened, and at this time the brake assembly is lifted by the lifting device. After the brake assembly is manually pushed out of the clamping ring, the position of the brake assembly is changed by rotating the rotating seat, and then the brake assembly is lifted and transported into the storage box through the lifting device to realize the dismounting of the brake assembly. The brake assembly dismounting, transporting and boxing work of various narrow-body aircrafts are suitable.

Description

Technical Field

[0001] This utility model relates to the field of aircraft maintenance tools, specifically to a multi-functional aircraft brake assembly disassembly and assembly tool. Background Technology

[0002] Currently, the brake assemblies on the main landing gear of various aircraft models are frequently involved in aircraft maintenance, requiring disassembly, relocation, and storage. However, brake assemblies are characterized by their large size, heavy weight, and lack of gripping points. In practice, they need to be horizontally removed from the landing gear and rotated 90 degrees for vertical storage. This process of disassembly, relocation, and packing is difficult for maintenance personnel, thus affecting aircraft maintenance efficiency. Furthermore, manually rotating and relocating brake assemblies poses safety hazards. Summary of the Invention

[0003] To overcome the shortcomings of the above-mentioned technologies, this utility model provides a multi-functional aircraft brake assembly disassembly and assembly tool that improves the efficiency of removing and installing brake components on the main landing gear of an aircraft, reduces labor costs, and improves operational safety.

[0004] The technical solution adopted by this utility model to overcome its technical problem is: A multi-functional aircraft brake assembly disassembly and assembly tool includes: The chassis has a walking mechanism installed at its lower end; The guide rod is mounted vertically on the chassis, and the slide block is slidably mounted on the guide rod in the vertical direction. The slide drive mechanism is mounted on the chassis and is used to drive the slide to slide up and down. The clamping ring has a circular structure. The left and right ends of the clamping ring are rotatably mounted on the slide block through a rotating shaft. The axis of the rotating shaft is horizontally arranged in the left and right direction. The clamping ring has an opening in the longitudinal direction. A locking mechanism is provided at the opening. When the brake assembly is located inside the clamping ring, the clamping ring and the brake assembly are locked and fixed by the locking mechanism. A rotating mechanism, mounted on the chassis, is used to drive the clamping ring to rotate; A support shaft is mounted vertically on the chassis, and a swivel is rotatably mounted on the top of the support shaft. A lifting device for lifting the brake assembly is mounted on the swivel.

[0005] Furthermore, the walking mechanism includes wheels rotatably mounted on the left and right sides of the front end of the chassis and omnidirectional wheels mounted on the left and right sides of the rear end of the chassis.

[0006] Furthermore, the slide drive mechanism includes a jack vertically mounted on the chassis, a crossbeam horizontally fixed on the guide rod, and a support shaft fixed to the piston rod head of the jack. The axis of the support shaft is horizontally arranged in the left-right direction, and sprockets are rotatably mounted on the left and right ends of the support shaft. Each sprocket is connected to a chain for transmission. One end of each chain is fixed to the crossbeam, and the other end is fixed to the slide.

[0007] Furthermore, the locking mechanism includes a locking hook mounted on the clamping ring and located on one side of the opening, a locking handle rotatably mounted on the clamping ring via a pin and located on the other side of the opening, and an elliptical locking ring. The tail end of the locking ring is hinged to the locking handle. When the head end of the locking ring is hooked onto the locking hook and the locking handle rotates to the rear, the inner diameter of the clamping ring decreases.

[0008] To improve safety, N rubber pads are spaced apart along the circumferential direction on the inner wall of the clamping ring, where N is a positive integer greater than or equal to 2.

[0009] Furthermore, the rotating mechanism includes a worm gear reducer mounted on the chassis and a rotating shaft rotatably mounted on the chassis via a bearing seat. The output shaft of the worm gear reducer is coaxially connected to the corresponding rotating shaft on the same side, and the input shaft of the worm gear reducer is coaxially connected to one end of the rotating shaft. A handwheel is connected to the other end of the rotating shaft.

[0010] Furthermore, the lifting device includes a support arm mounted on a swivel, a winding reel rotatably mounted at the front end of the support arm, a lever hoist mounted on the support arm, and a hook connected to the hoist's sling after it passes over the winding reel.

[0011] To improve ease of use, a handle is also included, which is mounted on the rear end of the guide rod.

[0012] Preferably, N is 3.

[0013] The beneficial effects of this utility model are as follows: The brake assembly is located inside the clamping ring, and then the clamping ring and the brake assembly are locked and fixed by a locking mechanism. After loosening the connecting bolts between the brake assembly and the aircraft's main landing gear, the entire brake assembly acts on the entire disassembly and assembly tool. Then, the chassis is moved outward, so that the brake assembly is separated from the aircraft's main landing gear axle. The clamping ring is driven to rotate 90 degrees by a rotating mechanism, thereby rotating the brake assembly 90 degrees, ensuring that its actuator side faces upward. Then, the lifting device is connected to the lifting point on the brake assembly, and the locking mechanism is released. At this time, the brake assembly is lifted by the lifting device. The brake assembly is manually pushed out of the clamping ring, and the rotating base is rotated to change the position of the brake assembly. Then, the brake assembly is lifted into the storage box by the lifting device, thus realizing the removal of the brake assembly. It is applicable to the disassembly, assembly, transportation, and packing of brake assemblies for various narrow-body aircraft models. It reduces the labor output of personnel, improves production efficiency, and ensures the safety of construction. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a rear view structural diagram of the present invention; Figure 3 This is a diagram showing the state of the clamping ring of this utility model after it has been rotated 90 degrees. Figure 4 This is a diagram showing the state of the clamping ring holding the brake assembly according to this utility model. In the diagram, 1. Chassis; 2. Wheel; 3. Guide rod; 4. Slide; 5. Clamping ring; 6. Bearing with seat; 7. Shaft; 8. Worm gear reducer; 9. Handwheel; 10. Shaft; 11. Rubber pad; 12. Opening; 13. Locking hook; 14. Pin; 15. Lock handle; 16. Locking ring; 17. Support shaft; 18. Rotary seat; 19. Support arm; 20. Lever hoist; 21. Sling; 22. Hook; 23. Caster wheel; 24. Handle; 25. Jack; 26. Crossbeam; 27. Support shaft; 28. Chain; 29. ​​Brake assembly; 30. Sprocket. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The present invention will be further described below.

[0016] As attached Figure 1 and attached Figure 2 As shown, a multi-functional aircraft brake assembly disassembly and assembly tool includes: a chassis 1 with a traveling mechanism mounted on its lower end; a guide rod 3 mounted vertically on the chassis 1, and a slide block 4 slidably mounted on the guide rod 3 in the vertical direction; a slide block drive mechanism mounted on the chassis 1 for driving the slide block 4 to slide up and down; a clamping ring 5 with a circular structure, the left and right ends of the clamping ring 5 being rotatably mounted on the slide block 4 via a rotating shaft 10, the axis of the rotating shaft 10 being horizontally arranged in the left and right direction, and the clamping ring 5 having an opening 12 in the longitudinal direction, with a locking mechanism at the opening 12, which locks and fixes the clamping ring 5 to the brake assembly 29 when the brake assembly 29 is located inside the clamping ring 5; a rotating mechanism mounted on the chassis 1 for driving the clamping ring 5 to rotate; and a support shaft 17 mounted vertically on the chassis 1, with a rotating base 18 rotatably mounted on the top of the support shaft 17, and a lifting device for lifting the brake assembly 29 mounted on the rotating base 18. When it is necessary to remove the brake assembly 29, the chassis 1 is moved to the brake assembly 29 on the main landing gear via the walking mechanism, and the slide 4 is driven by the slide drive mechanism to move upward under the guidance of the guide rod 3, as shown in the attached figure. Figure 4As shown, the brake assembly 29 is positioned within the clamping ring 5. Then, the clamping ring 5 and brake assembly 29 are locked together via a locking mechanism. After loosening the connecting bolts between the brake assembly 29 and the aircraft main landing gear, the brake assembly 29 acts as a whole on the entire disassembly and assembly tool. The chassis 1 is then moved outwards, disengaging the brake assembly 29 from the aircraft main landing gear axle. The clamping ring 5 is rotated 90 degrees via a rotating mechanism, as shown in the attached diagram. Figure 3 As shown, the brake assembly 29 is rotated 90 degrees to ensure that its actuator side faces upward. Then, the lifting device is connected to the lifting point on the brake assembly 29, and the locking mechanism is released. At this time, the brake assembly 29 is lifted by the lifting device. The brake assembly 29 is manually pushed out of the clamping ring 5, and the rotating seat 18 is rotated to change the position of the brake assembly 29. Then, the brake assembly 29 is lifted into the storage box by the lifting device, thus removing the brake assembly 29.

[0017] When a new brake assembly 29 needs to be installed, the brake assembly 29 is lifted from the storage box using a lifting device, and then placed into the clamp 5. The clamp 5 is locked and fixed to the brake assembly 29 using a locking mechanism. After locking and fixing, the connection between the lifting device and the brake assembly 29 is released, and the clamp 5 is driven to rotate 90 degrees in the opposite direction by a rotating mechanism. Then, the chassis 1 is moved to the main landing gear of the aircraft, and the slide 4 is driven to move upward by a slide drive mechanism to facilitate the assembly of the brake assembly 29.

[0018] It is suitable for the disassembly, assembly, transportation, and packing of brake components for various narrow-body aircraft, saving manpower. Multiple tools in the workflow are integrated into this multi-functional tool for easy operation.

[0019] In one embodiment of this utility model, the walking mechanism includes wheels 2 rotatably mounted on the left and right sides of the front end of the chassis 1 and casters 23 rotatably mounted on the left and right sides of the rear end of the chassis 1. The relatively fixed wheels 2 at the front end of the chassis 1 and the freely rotatable casters 23 at the rear end of the chassis 1 enable flexible movement and steering of the entire assembly / disassembly tool, improving ease of use.

[0020] In one embodiment of this utility model, the slide drive mechanism includes a jack 25 vertically mounted on a chassis 1, a crossbeam 26 horizontally fixed to a guide rod 3, and a support shaft 27 fixed to the piston rod end of the jack 25. The axis of the support shaft 27 is horizontally arranged in the left-right direction. Sprockets 30 are rotatably mounted on the left and right ends of the support shaft 27, respectively. A chain 28 is drivenly connected to each sprocket 30. One end of each chain 28 is fixed to the crossbeam 26, and the other end is fixed to the slide 4. When it is necessary to drive the slide 4 to move upward, the piston rod of the jack 25 is extended outward by repeatedly pressing the pressure rod on the jack 25. This pushes the support shaft 27 upward, thereby the chain 28 pulls the slide 4 upward under the guidance of the guide rod 3. The sprockets 30 rotate as the chain 28 moves. When the slide 4 moves downward, the pressure relief valve of the jack 25 is opened, the piston rod of the jack 25 retracts inward, and at this time the support shaft 27 moves downward, and the slide 4 moves downward under the guidance of the guide rod 3.

[0021] In one embodiment of this utility model, the locking mechanism includes a locking hook 13 mounted on the clamping ring 5 and located on one side of the opening 12, a locking handle 15 rotatably mounted on the clamping ring 5 via a pin 14 and located on the other side of the opening 12, and an elliptical locking ring 16. The tail end of the locking ring 16 is hinged to the locking handle 15. When the head end of the locking ring 16 hooks onto the locking hook 13 and the locking handle 15 rotates backward, the inner diameter of the clamping ring 5 decreases. After the brake assembly 29 is placed inside the clamping ring 5, the locking handle 15 is rotated forward, and then the head end of the locking ring 16 hooks onto the locking hook 13. Then the locking handle 15 rotates backward, and the locking ring 16 pulls the locking hook 13, gradually reducing the gap in the opening 12. This achieves the purpose of reducing the inner diameter of the clamping ring 5, allowing the clamping ring 5 to tightly connect and fix the brake assembly 29. In this embodiment, N rubber pads 11 are spaced apart along the circumferential direction on the inner wall of the clamping ring 5, where N is a positive integer greater than or equal to 2. By setting rubber pads 11, the clamping ring 5 can contact the outer surface of the brake assembly 29 through the rubber pads 11 when clamping the brake assembly 29, preventing direct contact between the clamping ring 5 and the brake assembly 29 that could damage the brake assembly 29, thus improving construction safety. Preferably, N is 3, and setting 3 rubber pads 11 ensures sufficient contact area with the outer surface of the brake assembly 29, improving the stability of clamping and fixing.

[0022] In one embodiment of this utility model, the rotating mechanism includes a worm gear reducer 8 mounted on a chassis 1 and a rotating shaft 7 rotatably mounted on the chassis 1 via a bearing 6. The output shaft of the worm gear reducer 8 is coaxially connected to the corresponding rotating shaft 10 on the same side, and the input shaft of the worm gear reducer 8 is coaxially connected to one end of the rotating shaft 7. The other end of the rotating shaft 7 is connected to a handwheel 9. When the brake assembly 29 needs to be rotated, the rotating shaft 7 is driven to rotate via the handwheel 9. When the rotating shaft 7 rotates, the worm gear reducer 8 reduces the speed and amplifies the torque to drive the clamping ring 5 to rotate. The handwheel 9 stops rotating when the clamping ring 5 has rotated 90 degrees. Because the worm gear transmission has a self-locking characteristic, the clamping ring 5 is fixed in position and will not rotate freely when the handwheel 9 is not rotating, ensuring that the position of the brake assembly 29 remains unchanged after it is rotated to the correct position, thus improving the convenience and reliability of use.

[0023] In one embodiment of this utility model, the lifting device includes a support arm 19 mounted on a swivel base 18. A winding reel is rotatably mounted at the front end of the support arm 19. A lever hoist 20 is mounted on the support arm 19, and the lifting cable 21 of the lever hoist 20 passes over the winding reel and is connected to a hook 22. When it is necessary to lift the brake assembly 29, the lifting cable 21 can be extended by rotating the crank on the lever hoist 20. At this time, the hook 22 moves down. When the hook 22 hooks the lifting point of the brake assembly 29, the crank on the lever hoist 20 is rotated in the opposite direction to retract the lifting cable 21, and the hook 22 lifts the brake assembly 29. The operation is convenient and the manufacturing cost is low.

[0024] In one embodiment of this utility model, a handle 24 is also included, which is installed at the rear end of the guide rod 3. The handle 24 allows the entire disassembly and assembly tool to be easily moved into place, improving ease of use.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional aircraft brake assembly disassembly and assembly tool, characterized in that, include: The chassis (1) has a walking mechanism installed at its lower end; The guide rod (3) is installed vertically on the chassis (1), and the slide (4) is slidably installed on the guide rod (3) in the vertical direction; The slide drive mechanism is mounted on the chassis (1) and is used to drive the slide (4) to slide up and down. The clamping ring (5) has a circular structure. The left and right ends of the clamping ring (5) are respectively mounted on the slide (4) by rotating shaft (10). The axis of the rotating shaft (10) is set horizontally in the left and right direction. The clamping ring (5) has an opening (12) in the longitudinal direction. A locking mechanism is provided at the opening (12). When the brake assembly (29) is located in the clamping ring (5), the clamping ring (5) and the brake assembly (29) are locked and fixed by the locking mechanism. A rotating mechanism is mounted on the chassis (1) and is used to drive the clamping ring (5) to rotate; A support shaft (17) is mounted vertically on a chassis (1). A swivel mount (18) is rotatably mounted on the top of the support shaft (17). A lifting device for lifting the brake assembly (29) is mounted on the swivel mount (18).

2. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: The walking mechanism includes wheels (2) that are rotatably mounted on the left and right sides of the front end of the chassis (1) and casters (23) that are mounted on the left and right sides of the rear end of the chassis (1).

3. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: The slide drive mechanism includes a jack (25) vertically mounted on the chassis (1), a crossbeam (26) horizontally fixed on the guide rod (3), and a support shaft (27) fixed to the piston rod head of the jack (25). The axis of the support shaft (27) is horizontally arranged in the left-right direction. Sprockets (30) are rotatably mounted on the left and right ends of the support shaft (27). A chain (28) is connected to each sprocket (30) for transmission. One end of each chain (28) is fixed to the crossbeam (26), and the other end is fixed to the slide (4).

4. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: The locking mechanism includes a locking hook (13) mounted on the clamping ring (5) and located on one side of the opening (12), a locking handle (15) rotatably mounted on the clamping ring (5) and located on the other side of the opening (12) via a pin (14), and an elliptical locking ring (16). The tail end of the locking ring (16) is hinged to the locking handle (15). When the head end of the locking ring (16) is hooked onto the locking hook (13) and the locking handle (15) rotates to the rear, the inner diameter of the clamping ring (5) becomes smaller.

5. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: N rubber pads (11) are spaced apart along the circumferential direction on the inner wall of the clamping ring (5), where N is a positive integer greater than or equal to 2.

6. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: The rotating mechanism includes a worm gear reducer (8) mounted on a chassis (1) and a rotating shaft (7) rotatably mounted on the chassis (1) via a bearing (6). The output shaft of the worm gear reducer (8) is coaxially connected to the corresponding rotating shaft (10) on the same side. The input shaft of the worm gear reducer (8) is coaxially connected to one end of the rotating shaft (7). The other end of the rotating shaft (7) is connected to a handwheel (9).

7. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: The lifting device includes a support arm (19) mounted on a rotatable base (18), a winding wheel is rotatably mounted on the front end of the support arm (19), a lever hoist (20) is mounted on the support arm (19), and the sling (21) of the lever hoist (20) passes around the winding wheel and is connected to a hook (22).

8. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 1, characterized in that: It also includes a handle (24) installed at the rear end of the guide rod (3).

9. The multi-functional aircraft brake assembly disassembly and assembly tool according to claim 5, characterized in that: N takes the value 3.

Images