Airplane main wheel replacing device

Abstract

The utility model discloses an aircraft main wheel replacing device, which relates to the technical field of aircraft maintenance and comprises a base with universal wheels at four corners, liftable supporting mechanisms are arranged at four corners of the base, rotating shafts are symmetrically and fixedly connected to the middle of the base, and sliding rods are slidably connected to the rotating shafts. The sliding rod is fixedly connected with an arc-shaped tire supporting frame. According to the device, the lifting supporting mechanism and the universal wheels are arranged in a matched mode, moving and temporary parking of the device can be achieved, sliding in the parking process is prevented, meanwhile, the sliding rod and the arc-shaped tire supporting frame are arranged in a matched mode, the position of the arc-shaped tire supporting frame can be adjusted, and therefore the device is matched with the position of a main wheel of an airplane.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft maintenance, and more specifically to a device for replacing a main wheel of an aircraft. Background Art

[0002] As a flying device that flies in the atmosphere, airplanes play an indispensable role in modern civilization. In recent years, with the continuous development of society, people's requirements for living standards have continued to increase, and airplanes have gradually become part of the lives of more people, which has also brought about a series of problems, such as the repair and daily maintenance of aircraft parts.

[0003] The wheel hub of an aircraft is an important component for the daily maintenance of the aircraft. It plays an important role in the safety of the aircraft's take-off and landing. It is a key safety component on the aircraft. As for the current research status of its wheel hub replacement, most of them are single and integral, which cannot adapt to the replacement operation requirements of aircraft hubs of different sizes and dimensions. This greatly reduces the universality of the equipment and its environmental adaptability, which is not conducive to the large-scale promotion and application of aircraft wheel hub replacement equipment.

[0004] In order to solve the above problems, a Chinese invention patent with application number CN201810571054.1 discloses an intelligent aircraft wheel hub replacement device that can be adjusted according to the size of the taxiing wheel. Although the aircraft wheel hub replacement operation can be achieved through auxiliary support plates, hydraulic devices, main support plates, main elastic devices, hydraulic cylinders, auxiliary modules, main modules and other devices, the aircraft wheel hub replacement device has poor support stability for the main wheel.

[0005] Therefore, it is necessary to propose an aircraft main wheel replacement device to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the problem that the existing aircraft hub replacement device has poor supporting stability for the main wheel.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A device for replacing an aircraft main wheel comprises a base with universal wheels at four corners, the four corners of the base are provided with liftable support mechanisms, a rotating shaft is symmetrically fixedly connected to the middle of the base, a sliding rod is slidably connected to the rotating shaft, and an arc-shaped tire support frame is fixedly connected to the sliding rod.

[0009] Furthermore, the arc-shaped tire support frame includes two groups of arc-shaped rods arranged in parallel, a connecting rod connecting the two groups of arc-shaped rods, and a roller symmetrically rotating between the two groups of arc-shaped rods, and the sliding rod is fixedly connected to the lower ends of the two groups of arc-shaped rods.

[0010] Furthermore, the support mechanism includes columns fixedly connected to the four corners of the base, threaded rods rotatably connected to the columns, support legs slidably connected to the inside of the columns, and support pads fixedly connected to the lower ends of the support legs, and the upper ends of the support legs are threadedly connected to the outer circumferential surface of the threaded rods.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model can realize the movement and temporary docking of the device through the coordinated setting between the liftable support mechanism and the universal wheel to prevent sliding during docking. At the same time, through the coordinated setting of the slide rod and the arc-shaped tire support frame, the position of the arc-shaped tire support frame can be adjusted to match the position of the main wheel of the aircraft.

[0013] 2. The utility model, through the setting of the roller, makes it easy to rotate the main wheel when the main wheel is placed on the arc rod, so as to detect the surface of the main wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the threaded rod in the utility model.

[0016] Figure numerals: 1, base; 2, column; 3, threaded rod; 4, handle; 5, support leg; 6, support pad; 7, mounting plate; 8, universal wheel; 9, rotating shaft; 10, sliding rod; 11, curved rod; 12, roller. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2, An aircraft main wheel replacement device, including a base 1 with universal wheels 8 arranged at four corners. The base 1 is a square steel in a return shape. At the four corners inside the square steel, there are fixedly connected mounting plates 7. The universal wheels 8 are rotatably mounted at the lower ends of the mounting plates 7. At the four corners of the base 1, there are liftable support mechanisms to facilitate lifting the base 1 so that the bottoms of the universal wheels 8 leave the ground, thereby realizing the support of the base 1. The support mechanism includes columns 2 fixedly connected to the four corners of the base 1. The middle part of the column 2 is a hollow part. A threaded rod 3 is rotatably connected to the upper middle part of the column 2. The connection part between the threaded rod 3 and the column 2 is a smooth shaft. A bearing is installed on the outer side of the smooth shaft, and the outer side of the bearing is fixed on the column 2 to realize the rotation of the threaded rod 3 around the hinge point with the column 2. Its threaded end is located in the hollow part of the column 2. A support leg 5 is slidably connected in the hollow part of the column 2. A support pad 6 is fixedly connected to the lower end of the support leg 5 to increase the contact area with the ground. The upper end of the support leg 5 is threadedly connected to the outer peripheral surface of the threaded rod 3. A turning handle 4 is inserted into the upper end of the threaded rod 3. By rotating the turning handle 4, the driving of the threaded rod 3 is realized, and then the threaded rod 3 drives the support leg 5 to move downward along the hollow part. Symmetrically fixedly connected to the middle part of the base 1 is a rotating shaft 9. A sliding rod 10 is slidably connected to the rotating shaft 9. A curved tire support frame is fixedly connected to the sliding rod 10.

[0019] Specifically, as shown in Figure 1-2 , the curved tire support frame includes two groups of arc-shaped rods 11 arranged side by side, a connecting rod connecting the two groups of arc-shaped rods 11, and a roller 12 symmetrically rotating between the two groups of arc-shaped rods 11. The curvature of the arc-shaped rod 11 is the same as that of the aircraft main wheel. The aircraft main wheel can just be placed on the connecting rod of the arc-shaped rod 11. The setting of the roller 12 can rotate the main wheel on the arc-shaped rod 11 to detect defects on the surface of the main wheel. The sliding rod 10 is fixedly connected to the lower ends of the two groups of arc-shaped rods 11. By pushing the curved tire support frame, the position of the curved tire support frame can be adjusted.

[0020] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should be equally included in the protection scope of the present invention.

Claims

1. An aircraft main wheel replacement device, comprising a base with universal wheels at four corners, characterized in that: The four corners of the base are provided with liftable support mechanisms, the middle of the base is symmetrically fixedly connected with a rotating shaft, a sliding rod is slidably connected to the rotating shaft, and an arc-shaped tire support frame is fixedly connected to the sliding rod.

2. The aircraft main wheel replacement device according to claim 1, characterized in that: The arc-shaped tire support frame comprises two groups of arc-shaped rods arranged in parallel, a connecting rod connecting the two groups of arc-shaped rods, and a roller symmetrically rotating between the two groups of arc-shaped rods. The sliding rod is fixedly connected to the lower ends of the two groups of arc-shaped rods.

3. The aircraft main wheel replacement device according to claim 2, characterized in that: The support mechanism includes columns fixedly connected to the four corners of the base, threaded rods rotatably connected to the columns, support legs slidably connected to the inside of the columns, and support pads fixedly connected to the lower ends of the support legs. The upper ends of the support legs are threadedly connected to the outer circumferential surface of the threaded rods.

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