An auxiliary device for changing aircraft wheels

Abstract

This utility model relates to the technical field of aircraft wheel replacement and repair, and in particular to an auxiliary device for aircraft wheel replacement. Its structure is more scientific and reasonable, and during disassembly, a circumferential torque can be applied to the aircraft wheel simultaneously, facilitating the removal of the aircraft wheel from the mounting shaft and further improving the efficiency of aircraft wheel disassembly and assembly. It includes a trolley, a vertical frame mounted on the trolley, two parallel rollers rotatably mounted at the bottom of the vertical frame, a slide block slidably mounted on the vertical frame, a shaft fixedly mounted on the slide block, a pressure roller rotatably mounted on the shaft, and a lifting drive component that provides power for raising and lowering the slide block. A rotary drive component is mounted on the vertical frame to provide power for the reciprocating rotation of the two rollers. A push cylinder is fixedly mounted in the middle of the vertical frame, which drives the vertical frame to move axially along the tire to be removed. A pull roller is mounted on the shaft, arranged perpendicularly to the shaft, and multiple sets of anti-slip protrusions are evenly distributed radially on the outer wall of the pull roller.

Description

Technical Field

[0001] This utility model relates to the technical field of aircraft wheel replacement and maintenance, and in particular to an auxiliary device for aircraft wheel replacement. Background Technology

[0002] Aircraft wheels (or aircraft tires) are an important component of aircraft landing gear, responsible for supporting the weight of the aircraft, absorbing landing impact, and providing traction during ground taxiing. Due to their large size and mass, aircraft wheels are often replaced using auxiliary equipment.

[0003] For example, Chinese utility model patent CN210027978U discloses an auxiliary device for changing aircraft tires, including a trolley base, wheels, a main bracket, a lifting bracket, an "L"-shaped bracket, rollers, pressure rollers, a camera, a camera mounting plate, a wheel control motor, a pitch rotation driver, a first lifting driver, a second lifting driver, a third lifting driver, a lateral movement control motor, a locking rotation control motor, a controller, and a remote control receiver. It can achieve automated or semi-automated precise operations for disassembling, transferring, picking up, and installing aircraft tires, saving time and effort, and is fast and efficient.

[0004] However, the above-mentioned device still has the following defects: the aircraft wheel is often interference-fitted with the mounting shaft in the initial stage of disassembly, and it is difficult to separate the aircraft wheel from the mounting shaft by simply applying radial tension. The disassembly and assembly efficiency of the aircraft wheel needs to be further improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary device for aircraft wheel replacement with a more scientific and reasonable structure. During the disassembly process, circumferential torque can be applied to the aircraft wheel simultaneously, facilitating the removal of the aircraft wheel from the mounting shaft and further improving the efficiency of aircraft wheel disassembly and assembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for changing aircraft wheels, comprising a trolley, a vertical frame mounted on the trolley, two parallel rollers rotatably mounted at the bottom of the vertical frame, a slide mounted vertically on the vertical frame, a shaft fixedly mounted on the slide, a pressure roller rotatably mounted on the shaft, and a lifting drive component that provides power for raising and lowering the slide. A rotary drive component that provides power for the reciprocating rotation of the two rollers is mounted on the vertical frame. Further, the lifting drive component is preferably a telescopic cylinder, preferably a hydraulic cylinder, which provides telescopic kinetic energy through an external pump station. The lifting drive component can also be a mechanical slide or other equivalent component with a lifting drive effect. The rotary drive component is preferably a motor and a transmission chain, with the motor's output end connected to the rollers via the transmission chain. The motor is preferably a speed-regulating motor capable of forward and reverse rotation. The rotary drive component can also be a rotary cylinder or other equivalent component capable of driving the rollers to reciprocate.

[0007] Preferably, a push cylinder is fixedly installed in the middle of the vertical frame, and the push cylinder is used to drive the vertical frame to move axially along the tire to be removed.

[0008] Preferably, a pull roller is mounted on the shaft, the pull roller is arranged perpendicular to the shaft, and the outer wall of the roller is provided with multiple sets of anti-slip protrusions evenly distributed radially; furthermore, the pull roller is used to apply force to the aircraft wheel along the axial direction of the mounting shaft, and the anti-slip protrusions are preferably rubber rings, but other equivalent parts with anti-slip effects can also be used.

[0009] Preferably, the pull roller is rotatably mounted on the shaft, and multiple support rollers are rotatably mounted on the vertical frame; furthermore, the aircraft wheel is rotatably connected to the vertical frame through the support rollers, and the pull roller is rotatably connected to the aircraft wheel.

[0010] Preferably, a top block is fixedly installed at the output end of the push cylinder; further, the top block is rotatably connected to the output end of the push cylinder via a ball seat or bearing, etc.

[0011] Preferably, it also includes a horizontal frame mounted on the trolley, a rotary drive arm hinged to the horizontal frame, a vertical frame fixedly mounted on the rotary drive arm, and a tilting drive cylinder hinged to the horizontal frame, the output end of the tilting drive cylinder being hinged to the rotary drive arm.

[0012] Preferably, the trolley is equipped with a lifting drive cylinder, and the horizontal frame is slidably mounted on the output end of the lifting drive cylinder; further, multiple guide rods are fixedly mounted on the bottom of the horizontal frame, and the trolley is provided with sliding holes corresponding to the guide rods, and the guide rods are slidably mounted in the sliding holes on the trolley; both the tilting drive cylinder and the lifting drive cylinder are preferably hydraulic cylinders, and the hydraulic cylinders are provided with lifting power by an external hydraulic pump station.

[0013] Preferably, the slide block is provided with a strip-shaped groove and a plurality of mounting holes communicating with the strip-shaped groove, the shaft can slide along the strip-shaped groove, and the shaft is fixedly installed in one of the mounting holes by a nut.

[0014] Compared with the prior art, this utility model provides an auxiliary device for replacing aircraft wheels, which has the following beneficial effects: This auxiliary device, by pushing a trolley to the aircraft wheel to be replaced, allows two rollers to enter the bottom of the aircraft wheel and contact both sides of the bottom. A lifting drive moves the slide down, and a pressure roller presses the aircraft wheel onto the two rollers. A rotation drive drives the rollers to rotate reciprocally, simultaneously dragging the trolley along the axial direction of the aircraft wheel. While applying axial tension to the aircraft wheel, the rollers apply a circumferential rotational force to the aircraft wheel, causing the aircraft wheel to rotate and sway around its central axis. This rotational swaying action allows the aircraft wheel to quickly detach from the mounting shaft. The structure is more scientific and reasonable. During disassembly, a circumferential torque can be applied to the aircraft wheel simultaneously, facilitating its removal from the mounting shaft and further improving the efficiency of aircraft wheel disassembly and assembly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a top view schematic diagram of the structure of this utility model;

[0017] Figure 3 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0018] Figure 4 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0019] The following are labels in the attached diagram: 1. Trolley; 2. Vertical frame; 3. Support roller; 4. Slide seat; 5. Shaft; 6. Pressure roller; 7. Lifting drive component; 8. Rotation drive component; 9. Push cylinder; 10. Pull roller; 11. Anti-slip protrusion ring; 12. Support roller; 13. Top block; 14. Horizontal frame; 15. Rotation drive arm; 16. Tilting drive cylinder; 17. Lifting drive cylinder; 18. Strip groove; 19. Mounting hole. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] As described in the background art, an auxiliary device for changing aircraft tires is used. In the initial stage of disassembly, aircraft tires are often interference-fitted with the mounting shaft. Simply applying radial tension to the aircraft tire makes it difficult to separate it from the mounting shaft, and the efficiency of aircraft tire disassembly and assembly needs to be further improved.

[0022] To solve this technical problem, this utility model provides an auxiliary device for aircraft wheel replacement, which is applied to aircraft wheel replacement operations.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Example 1

[0026] Please refer to Figure 1-3 An auxiliary device for changing aircraft wheels includes a trolley 1, a vertical frame 2 mounted on the trolley 1, two parallel idler rollers 3 rotatably mounted on the bottom of the vertical frame 2, a slide block 4 slidably mounted on the vertical frame 2, a shaft 5 fixedly mounted on the slide block 4, a pressure roller 6 rotatably mounted on the shaft 5, and a lifting drive 7 that provides power for raising and lowering the slide block 4. A rotary drive 8 that provides power for the reciprocating rotation of the two idler rollers 3 is mounted on the vertical frame 2. Further, the lifting drive 7 is preferably a telescopic cylinder, preferably a hydraulic cylinder, which provides telescopic kinetic energy through an external pump station. The lifting drive 7 can also be a mechanical slide or other equivalent component with a lifting drive effect. The rotary drive 8 is preferably a motor and a transmission chain. The output end of the motor is connected to the idler rollers 3 through the transmission chain. The motor is preferably a speed-regulating motor that can rotate in both directions. The rotary drive 8 can also be a rotary cylinder or other equivalent component that can drive the idler rollers 3 to reciprocate.

[0027] For details, please refer to Figure 3 A push cylinder 9 is fixedly installed in the middle of the vertical frame 2. The push cylinder 9 is used to drive the vertical frame 2 to move axially along the tire to be removed. Furthermore, the push cylinder 9 is preferably a hydraulic cylinder, and the push cylinder 9 is provided with extension and retraction kinetic energy by an external hydraulic pump station.

[0028] For details, please refer to Figure 1 or Figure 3 A pull roller 10 is mounted on the shaft 5. The pull roller 10 is arranged perpendicular to the shaft 5. Multiple sets of anti-slip protrusions 11 are provided on the outer wall of the roller 3, which are evenly distributed radially. Furthermore, the pull roller 10 is used to apply force to the aircraft wheel along the axial direction of the mounting shaft. The anti-slip protrusions 11 are preferably rubber rings, but other equivalent parts with anti-slip effects can also be used.

[0029] For details, please refer to Figure 1 The pull roller 10 is rotatably mounted on the shaft 5, and multiple support rollers 12 are rotatably mounted on the vertical frame 2; furthermore, the aircraft wheel is rotatably connected to the vertical frame 2 through the support rollers 12, and the pull roller 10 is rotatably connected to the aircraft wheel.

[0030] For details, please refer to Figure 3A top block 13 is fixedly installed at the output end of the push cylinder 9; furthermore, the top block 13 is rotatably connected to the output end of the push cylinder 9 through a ball seat or bearing, etc.

[0031] The aircraft wheel replacement auxiliary equipment provided in this embodiment, during the disassembly of the wind turbine wheel, has its output end of the push cylinder 9 extended and contacting the end of the mounting shaft on which the aircraft wheel is mounted. The idler roller 3 and pressure roller 6 tightly hold the aircraft wheel in place, and the vertical frame 2 moves radially away from the mounting shaft, thereby applying radial tension to the aircraft wheel. This eliminates the need for manual dragging of the trolley 1, further reducing manual operation. The pull roller 10 can contact the side of the aircraft wheel away from the vertical frame 2, while the anti-slip protrusion ring 11 increases the friction between the aircraft wheel and the idler roller 3, effectively preventing relative slippage between them. When radial tension is applied to the wheel, it can prevent the aircraft wheel from detaching from the idler roller 3 and the pressure roller 6, ensuring that the radial force application operation on the aircraft wheel is carried out smoothly. The pull roller 10 is rotatably mounted on the shaft 5. When the aircraft wheel follows the idler roller 3 to rotate, it can reduce the resistance generated by the pull roller 10 on the rotation process of the aircraft wheel. The support roller 12 can also greatly reduce the friction between the aircraft wheel and the vertical frame 2, which can increase the contact area between the push cylinder 9 and the mounting shaft, and improve the connection tightness between the push cylinder 9 and the mounting shaft, so as to prevent the mounting shaft from rotating with the aircraft wheel, and further improve the disassembly efficiency of the aircraft wheel.

[0032] Example 2

[0033] The aircraft wheel replacement auxiliary equipment provided in Example 1 has been further optimized. For details, please refer to... Figure 3 It also includes a horizontal frame 14 mounted on the trolley 1, a rotary drive arm 15 hinged on the horizontal frame 14, a vertical frame 2 fixedly mounted on the rotary drive arm 15, a tilting drive cylinder 16 hinged on the horizontal frame 14, and the output end of the tilting drive cylinder 16 hinged to the rotary drive arm 15.

[0034] For details, please refer to Figure 2 The trolley 1 is equipped with a lifting drive cylinder 17, and the horizontal frame 14 is slidably mounted on the output end of the lifting drive cylinder 17. Furthermore, multiple guide rods are fixedly mounted on the bottom of the horizontal frame 14, and the trolley 1 is provided with sliding holes corresponding to the guide rods. The guide rods are slidably mounted in the sliding holes on the trolley 1. Both the tilting drive cylinder 16 and the lifting drive cylinder 17 are preferably hydraulic cylinders, and the hydraulic cylinders are provided with lifting power through an external hydraulic pump station.

[0035] For details, please refer to Figure 3 The slide block 4 is provided with a strip groove 18 and multiple mounting holes 19 communicating with the strip groove 18. The shaft 5 can slide along the strip groove 18 and is fixedly installed in one of the mounting holes 19 by a nut.

[0036] The aircraft wheel replacement auxiliary equipment provided in this embodiment allows for the following process during aircraft wheel disassembly: the vertical frame 2 and the horizontal frame 14 are perpendicular. The lifting drive cylinder 17 is activated, which adjusts the height of the vertical frame 2 to match the aircraft wheel to be disassembled, allowing the support roller 3 to extend to the bottom of the aircraft wheel. After the aircraft wheel is detached from the mounting shaft, the output end of the flip drive cylinder 16 extends, and the rotation drive arm 15 drives the vertical frame 2 to rotate until it reaches a horizontal position. This moves the center of the aircraft wheel to the upper part of the trolley 1. After the aircraft wheel on the vertical frame 2 rotates from a vertical to a horizontal position, it prevents the aircraft wheel from falling off between the support roller 3 and the pressure roller 6 during the aircraft wheel transfer process, improving the stability of the aircraft wheel transfer process. The installation position of the shaft 5 at different mounting holes 19 can be adjusted as needed, and the adjusted shaft 5 can be fixed with nuts, thereby adjusting the limit distance between the support roller 3 and the pressure roller 6 to meet the replacement needs of aircraft wheels of various sizes and improve the applicability of the device.

[0037] The operation of the aircraft wheel replacement auxiliary device provided by this utility model is as follows: By pushing the trolley 1 to the aircraft wheel to be replaced, the tilting drive cylinder 16 drives the rotating drive arm 15 to rotate until the vertical frame 2 is in a vertical state, and the two support rollers 3 enter the bottom of the aircraft wheel. The lifting drive cylinder 17 drives the horizontal frame 14 to move upward until the two support rollers 3 are in contact with both sides of the bottom of the aircraft wheel. The lifting drive component 7 drives the slide 4 to move downward, and the pressure roller 6 presses the aircraft wheel onto the two support rollers 3. The output end of the push cylinder 9 extends, and a radial force is applied to the end of the mounting shaft through the top block 13. At the same time, the rotating drive... Part 8 drives the idler roller 3 to rotate back and forth. While the idler roller 3, pressure roller 6, and pull roller 10 apply axial tension to the aircraft wheel, the idler roller 3 also applies circumferential rotational force to the aircraft wheel, causing the aircraft wheel to rotate and sway back and forth around the central axis. Under the action of rotation and swaying, the aircraft wheel quickly disengages from the mounting shaft. After removal, the flip drive cylinder 16 drives the vertical frame 2 to rotate to a horizontal state through the rotation drive arm 15, and pushes the trolley 1 to move the aircraft wheel to the required position. Alternatively, the new aircraft wheel can be installed at the mounting shaft according to the above principle, and the radial thrust during the installation process is applied by pushing the trolley 1.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An auxiliary device for changing aircraft wheels, characterized in that, It includes a trolley (1), a vertical frame (2) mounted on the trolley (1), two side-by-side rollers (3) rotatably mounted on the bottom of the vertical frame (2), a slide seat (4) slidably mounted on the vertical frame (2), a shaft (5) fixedly mounted on the slide seat (4), a pressure roller (6) rotatably mounted on the shaft (5), and a lifting drive (7) that provides power for the lifting of the slide seat (4). The vertical frame (2) is equipped with a rotary drive (8) that provides power for the reciprocating rotation of the two rollers (3).

2. The aircraft wheel replacement auxiliary equipment according to claim 1, characterized in that, A push cylinder (9) is fixedly installed in the middle of the vertical frame (2). The push cylinder (9) is used to drive the vertical frame (2) to move along the axis of the tire to be removed.

3. The aircraft wheel replacement auxiliary equipment according to claim 2, characterized in that, A pull roller (10) is installed on the shaft (5). The pull roller (10) is arranged perpendicular to the shaft (5). The outer wall of the roller (3) is provided with multiple sets of anti-slip protrusions (11) that are evenly distributed radially.

4. The aircraft wheel replacement auxiliary equipment according to claim 3, characterized in that, The pull roller (10) is rotatably mounted on the shaft (5), and multiple support rollers (12) are rotatably mounted on the vertical frame (2).

5. The aircraft wheel changing auxiliary equipment according to claim 2 or 4, characterized in that, The output end of the push cylinder (9) is fixedly equipped with a top block (13).

6. The aircraft wheel changing auxiliary equipment according to claim 1, characterized in that, It also includes a horizontal frame (14) mounted on a trolley (1), on which a rotary drive arm (15) is hinged, and a vertical frame (2) is fixedly mounted on the rotary drive arm (15). A tilting drive cylinder (16) is hinged on the horizontal frame (14), and the output end of the tilting drive cylinder (16) is hinged to the rotary drive arm (15).

7. The aircraft wheel replacement auxiliary equipment according to claim 6, characterized in that, The trolley (1) is equipped with a lifting drive cylinder (17), and the horizontal frame (14) is slidably mounted on the output end of the lifting drive cylinder (17).

8. The aircraft wheel replacement auxiliary equipment according to claim 1, characterized in that, The slide block (4) is provided with a strip groove (18) and a plurality of mounting holes (19) communicating with the strip groove (18). The shaft (5) can slide along the strip groove (18). The shaft (5) is fixedly installed in one of the mounting holes (19) by a nut.

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