Four-degree-of-freedom dismounting device for aircraft wheel

Abstract

The application discloses a four-degree-of-freedom dismounting device for dismounting and mounting an airplane wheel, relates to the technical field of airplane maintenance, and comprises a vehicle frame, a wheel is fixedly installed below the vehicle frame, a handle is fixedly installed outside the vehicle frame, a rotary disc is fixedly installed above the inner side of the vehicle frame, a hydraulic rod is fixedly installed above the rotary disc, a universal assembly is fixedly installed above the hydraulic rod, a holder is fixedly installed above a holder, and the holder is fixedly installed above the holder. The universal assembly comprises a first sliding rail, the first sliding rail is fixedly installed at the output end of the hydraulic rod, a second sliding rail is slidingly installed in the first sliding rail, a sliding groove is formed in the inner side of the second sliding rail, a sliding block is fixedly installed outside the holder, and the sliding block is slidingly installed in the sliding groove. The application has four degrees of freedom, can realize movement in X, Y and Z directions and rotation around the Z axis, realizes one-time pushing, arbitrary adjustment, accurate centering and accurate installation in the process of mounting the wheel.

Description

Technical Field

[0001] This invention belongs to the field of aircraft maintenance, specifically relating to a four-degree-of-freedom disassembly and assembly device for aircraft wheel disassembly and assembly. Background Technology

[0002] During aircraft line maintenance, the removal and installation of aircraft wheels is a common task. Because most aircraft wheels are large in size and weight, and there are many to be repaired, the removal and installation usually requires 3-5 people working together. When installing aircraft wheels and brake components, it is necessary to align the center of the wheel's central hole with the axle's axle, while avoiding wheel wobbling and preventing the wheel hub from scraping against the axle.

[0003] Currently, most disassembly devices rely on manual handling by workers, visual inspection, and manual fixing of the wheels. Because there are deviations between manual inspection and fixing, as well as environmental factors such as the ground, multiple adjustments are often required to align the wheels with the center. This makes wheel replacement time-consuming, labor-intensive, and inefficient, and may even damage parts. Summary of the Invention

[0004] This invention provides a four-degree-of-freedom disassembly and assembly device for aircraft wheels, in order to solve the technical problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a four-degree-of-freedom disassembly and assembly device for aircraft wheels, including a frame, wheels fixedly mounted under the frame, handles fixedly mounted on the outer side of the frame, a rotating disk fixedly mounted on the upper inner side of the frame, the rotating disk being electrically connected to an external power supply, a hydraulic rod fixedly mounted on the upper part of the rotating disk, a universal joint fixedly mounted on the upper part of the hydraulic rod, a gimbal movably mounted on the output end of the universal joint, and a fixing frame fixedly mounted on the upper part of the gimbal;

[0006] The universal assembly includes a first slide rail, the output end of the hydraulic rod is fixedly installed on the first slide rail, a second slide rail is slidably installed inside the first slide rail, a slide groove is opened on the inner side of the second slide rail, and a slider is fixedly installed on the outer side of the gimbal, the slider is slidably installed in the slide groove.

[0007] Preferably, a first traction handle and a second traction handle are respectively installed on the outer side of the frame and the outer side of the first slide rail, for driving the second slide rail and the gimbal to slide.

[0008] Preferably, the wheel has four wheels, and the wheel away from the handle is a swivel wheel. There are two swivel wheels, and each swivel wheel is equipped with a brake.

[0009] Preferably, the mounting frame includes a first support rod, which is fixedly connected to the gimbal, and a second support rod and a third support rod are detachably mounted on the upper and lower ends of the first support rod, respectively.

[0010] Preferably, the first support rod includes a T-shaped frame and a sleeve frame. One end of the T-shaped frame is fixedly connected to the gimbal, and the T-shaped frame and the sleeve frame are slidably connected. A second support rod can be detachably installed on the upper part of the sleeve frame, and a third support rod can be detachably installed on the lower part of the T-shaped frame.

[0011] Preferably, through holes are provided below the T-shaped frame and above the sleeve frame. There are multiple through holes, which are arranged at equal intervals. There are two second support rods and two third support rods. Threaded joints are fixedly installed at the top of the second support rods and the third support rods. The threaded joints pass through the through holes and are provided with nuts. The nuts engage with the threaded joints.

[0012] The present invention has the following advantages over the prior art:

[0013] The present invention provides a four-degree-of-freedom disassembly and assembly device for aircraft wheels, which has four degrees of freedom and can move in the X, Y, and Z directions and rotate around the Z axis, so as to achieve precise alignment and accurate installation of the wheels in one push during the installation process. Attached Figure Description

[0014] Figure 1 This is a structural diagram of a four-degree-of-freedom disassembly and assembly device for aircraft wheel disassembly and assembly according to the present invention;

[0015] Figure 2 This is a structural diagram of the universal joint component in a four-degree-of-freedom disassembly and assembly device for aircraft wheel disassembly and assembly according to the present invention;

[0016] Figure 3 This is a structural diagram of the fixing frame in a four-degree-of-freedom disassembly and assembly device for aircraft wheel disassembly and assembly according to the present invention;

[0017] Figure 4 This is a structural diagram of the first support rod in a four-degree-of-freedom disassembly and assembly device for aircraft wheel disassembly and assembly according to the present invention;

[0018] The following are the labels in the diagram: 1. Frame; 2. Wheel; 3. Universal joint assembly; 4. Handle; 5. Gimbal; 6. Mount; 7. First traction handle; 8. Second traction handle; 9. Slider; 10. Slide; 11. First slide rail; 12. Second slide rail; 13. First support rod; 14. Second support rod; 15. Threaded joint; 16. Third support rod; 17. Through hole; 18. T-shaped frame; 19. Sleeve frame. Detailed Implementation

[0019] Please see Figure 1-4The present invention provides a technical solution: a four-degree-of-freedom disassembly and assembly device for aircraft wheels, including a frame 1, wheels 2 fixedly installed below the frame 1, handles 4 fixedly installed on the outer side of the frame 1, a rotating disk fixedly installed on the upper inner side of the frame 1, the rotating disk being electrically connected to an external power supply, a hydraulic rod fixedly installed on the upper part of the rotating disk, a universal assembly 3 fixedly installed on the upper part of the hydraulic rod, a gimbal 5 movably installed at the output end of the universal assembly 3, and a fixing frame 6 fixedly installed on the upper part of the gimbal 5;

[0020] The universal assembly 3 includes a first slide rail 11, the hydraulic rod output end is fixedly installed on the first slide rail 11, a second slide rail 12 is slidably installed inside the first slide rail 11, a slide groove 10 is opened on the inner side of the second slide rail 12, and a slider 9 is fixedly installed on the outer side of the gimbal 5, and the slider 9 is slidably installed in the slide groove 10.

[0021] Furthermore, a first traction handle 7 and a second traction handle 8 are respectively installed on the outer side of the frame 1 and the outer side of the first slide rail 11 to drive the second slide rail 12 and the gimbal 5 to slide.

[0022] Furthermore, there are four wheels 2. The wheels 2 furthest from the handle 4 are swivel wheels. There are two swivel wheels, and each swivel wheel is equipped with a brake.

[0023] Furthermore, the mounting bracket 6 includes a first support rod 13, which is fixedly connected to the gimbal 5. The upper and lower ends of the first support rod 13 are respectively detachably equipped with a second support rod 14 and a third support rod 16.

[0024] Furthermore, the first support rod 13 includes a T-shaped frame 18 and a sleeve frame 19. One end of the T-shaped frame 18 is fixedly connected to the gimbal 5. The T-shaped frame 18 and the sleeve frame 19 are slidably connected. A second support rod 14 can be detachably installed on the upper part of the sleeve frame 19, and a third support rod 16 can be detachably installed on the lower part of the T-shaped frame 18.

[0025] Furthermore, through holes 17 are provided below the T-shaped frame 18 and above the sleeve frame 19. There are multiple through holes 17, which are arranged at equal intervals. There are two second support rods 14 and two third support rods 16. Threaded joints 15 are fixedly installed at the top of the second support rods 14 and the third support rods 16. The threaded joints 15 pass through the through holes 17 and are provided with nuts. The nuts engage with the threaded joints 15.

[0026] Working principle:

[0027] When installing the tire, first insert the threaded connector 15 at the top of the third support rod 16 into the corresponding through hole 17 according to the width of the tire. Then fix the third support rod 16 on the first support rod 13 with a nut. Manually place the tire on the lower support rod and fix it by adjusting the second support rod 14 and the first support rod 13 to clamp it.

[0028] Activate the brake on the omnidirectional wheel, push the frame 1 with handle 4 to move the entire device to the vicinity of the aircraft wheel axle, initially align the center of the wheel axle, and fix the brake to prevent shaking;

[0029] Adjust the first traction handle 7 in the X direction, the hydraulic rod in the Z direction, and the rotating disk to precisely align the center of the aircraft wheel with the center of the aircraft wheel axle;

[0030] Adjust the second traction handle 8 in the Y direction to move the tire forward and slowly advance it along the aircraft wheel axle until it reaches the installation position;

[0031] After the inspection is passed, loosen the second support rod 14, adjust the Z-direction hydraulic rod to move the entire device away from the tire, and pull the frame 1 backward to complete the tire installation.

Claims

1. A four-degree-of-freedom disassembly and assembly device for aircraft wheels, comprising a frame (1), characterized in that: Wheels (2) are fixedly installed below the frame (1), handles (4) are fixedly installed on the outside of the frame (1), a rotating disk is fixedly installed on the upper inside of the frame (1), the rotating disk is electrically connected to an external power source, a hydraulic rod is fixedly installed on the top of the rotating disk, a universal assembly (3) is fixedly installed on the top of the hydraulic rod, a gimbal (5) is movably installed on the output end of the universal assembly (3), and a mounting bracket (6) is fixedly installed on the top of the gimbal (5). The universal assembly (3) includes a first slide rail (11), the output end of the hydraulic rod is fixedly installed on the first slide rail (11), a second slide rail (12) is slidably installed in the first slide rail (11), a slide groove (10) is opened on the inner side of the second slide rail (12), and a slider (9) is fixedly installed on the outer side of the gimbal (5), and the slider (9) is slidably installed in the slide groove (10); The outer side of the frame (1) and the outer side of the first slide rail (11) are respectively equipped with a first traction handle (7) and a second traction handle (8) for driving the second slide rail (12) and the gimbal (5) to slide. The fixed frame (6) includes a first support rod (13), which is fixedly connected to the gimbal (5). The upper and lower ends of the first support rod (13) are respectively detachably equipped with a second support rod (14) and a third support rod (16). The first support rod (13) includes a T-shaped frame (18) and a sleeve frame (19). One end of the T-shaped frame (18) is fixedly connected to the gimbal (5). The T-shaped frame (18) and the sleeve frame (19) are slidably connected. A second support rod (14) can be detachably installed above the sleeve frame (19), and a third support rod (16) can be detachably installed below the T-shaped frame (18). Through holes (17) are provided below the T-shaped frame (18) and above the sleeve frame (19). There are multiple through holes (17) and they are arranged at equal intervals. There are two of each of the second support rod (14) and the third support rod (16). Threaded joints (15) are fixedly installed at the top of the second support rod (14) and the third support rod (16). The threaded joints (15) penetrate through the through holes (17) and are provided with nuts. The nuts engage with the threaded joints (15).

2. The four-degree-of-freedom disassembly and assembly device for aircraft wheel disassembly and assembly according to claim 1, characterized in that, The wheel (2) is provided in four parts. The wheel (2) away from the handle (4) is a universal wheel. There are two universal wheels, and each universal wheel is provided with a brake.

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