Wear-resistant coating spraying equipment for aircraft landing gear

By designing an aircraft landing gear coating spraying equipment including base, vertical plate, horizontal plate, drive motor and rotating disc, the problems of landing gear fixation and instability of spraying are solved, and a stable and uniform coating treatment is achieved.

CN223234130UActive Publication Date: 2025-08-19CHANGZHOU HENGLI SURFACE TECH CO LTD
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Patent Information

Application Number
CN202422353766.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-08-19
Estimated Expiration
2034-09-26

AI Technical Summary

Technical Problem

In the prior art, the rod body of the aircraft landing gear is difficult to fix due to its cylindrical structure, which poses safety risks during coating treatment, and traditional spraying equipment cannot achieve all-round and stable coating spraying.

Method used

A wear-resistant coating spraying equipment including a base, a vertical plate, a horizontal plate, a drive motor, a rotating plate, a movable plate and a spray gun is designed. Through the coordination of the electric telescopic machine and a movable plate, the landing gear is fixed and rotated, and the limit of the annular groove and the block is combined to ensure the stability of the spraying.

Benefits of technology

The landing gear is stable and multi-sided spraying is achieved, which avoids shaking during the coating process and improves the uniformity and safety of the coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses wear-resistant coating spraying equipment of an aircraft landing gear, which belongs to the technical field of coating equipment, and comprises a base and a landing gear, a vertical plate is arranged on one side of the base, the vertical plate is connected with an extension plate through an arc-shaped plate, a transverse plate is arranged in the center of the top of the vertical plate, a driving motor is arranged on the transverse plate, and the driving motor is connected with the extension plate through an arc-shaped plate. An output shaft of the driving motor extends to the position below the transverse plate and is connected with a rotating disc, and an empty groove is formed in the bottom of the rotating disc. Through the arrangement of the first electric telescopic machine, the first movable plate and the second movable plate, fixing of the undercarriage is achieved, shaking of the undercarriage during spraying is avoided, through the arrangement of the driving motor and the rotating disc, the undercarriage is driven to rotate, multi-face spraying treatment is achieved, meanwhile, through the arrangement of an annular groove and a clamping block, the spraying effect is good, and the spraying effect is good. And the rotating disc is located at the same height all the time, and the spraying stability is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a wear-resistant coating spraying device for an aircraft landing gear. Background Art

[0002] An aircraft's landing gear is the attachment on the underside of an aircraft that supports and allows it to maneuver on the ground (or water) during takeoff, landing, or taxiing. As an integral part of an aircraft, the landing gear plays a crucial role in ensuring the safe takeoff and landing of the aircraft.

[0003] Wear-resistant coatings for aircraft landing gear are primarily applied using thermal spraying technologies, including high velocity oxygen fuel (HVOF), plasma spray (PS), and arc spray (AS), to improve the landing gear's service life and wear resistance. The cylindrical shape of the landing gear makes it difficult to secure. Clamping prevents coating at the clamping point, posing a safety hazard.

[0004] For this reason, we propose a wear-resistant coating spraying device for aircraft landing gear. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a wear-resistant coating spraying device for aircraft landing gear, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A wear-resistant coating spraying equipment for aircraft landing gear, comprising a base and a landing gear, a vertical plate is provided on one side of the base, the vertical plate is connected to an extension plate through an arc plate, a horizontal plate is provided at the top center of the vertical plate, a driving motor is provided on the horizontal plate, the output shaft of the driving motor extends to the bottom of the horizontal plate and is connected to a rotating disk, an empty slot is provided at the bottom of the rotating disk, a first electric telescopic machine is fixedly provided inside the empty slot, and a movable block is fixedly connected to the end of the first electric telescopic machine, a first movable plate and a second movable plate are fixedly connected to the surface of the movable block, the first movable plate and the second movable plate are both provided with limiting rods, the vertical plate and the extension plate are respectively provided with a first movable slot and a second movable slot, and a spray gun is slidably provided in the first movable slot and the second movable slot.

[0007] In a preferred example, the present invention can be further configured as follows: a paint box is fixedly mounted on the back of the vertical plate, and the paint box is connected to the spray gun via a pipeline.

[0008] In a preferred example, the present invention can be further configured as follows: a connecting block is provided below the vertical plate and a clamping block is provided at the bottom of the connecting block.

[0009] In a preferred example, the present invention can be further configured as follows: an annular groove is opened on the lower surface of the rotating disk, the clamping block extends to the bottom of the annular groove and is provided with a connecting rod, the connecting rod extends to the inside of the annular groove, and the connecting rod is arranged to abut against both sides of the annular groove.

[0010] In a preferred example, the present invention can be further configured as follows: a first mounting block is provided on the top of the landing gear, a groove is provided in the middle of the rod body of the landing gear, a second mounting block is movably provided in the groove, and a socket adapted to the limit rod is provided on both the first mounting block and the second mounting block.

[0011] In a preferred example, the present invention can be further configured as follows: a control panel is provided on the back of the vertical plate, and the control panel is electrically connected to the drive motor and the first electric telescopic machine through PLC programming of model S4-400.

[0012] Beneficial effects of the utility model:

[0013] The utility model is provided with a first electric telescopic machine, a first movable plate and a second movable plate. The first electric telescopic machine drives the first movable plate and the second movable plate to move, and then drives the limit rod to extend into the sockets provided on the first mounting block and the second mounting block. The electric push rod is provided to block the first movable plate and the second movable plate to fix the landing gear and prevent the landing gear from shaking during spraying. The driving motor and the rotating disk are provided to drive the landing gear to rotate and realize multi-faceted spraying. At the same time, the annular groove and the block are provided to ensure that the rotating disk is always at a height, thereby increasing the stability of the spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the structure of the rotating disk of the utility model when viewed from above;

[0017] Figure 4 It is an enlarged schematic diagram of the structure at point A of the present utility model.

[0018] In the figure: 1. base; 2. vertical plate; 3. paint box; 4. horizontal plate; 5. drive motor; 6. connecting block; 7. rotating disk; 8. extension plate; 9. spray gun; 10. first movable slot; 12. second movable slot; 13. landing gear; 14. first mounting block; 15. second mounting block; 16. empty slot; 17. annular slot; 18. clamping block; 19. first electric telescopic machine; 20. movable block; 21. first movable plate; 22. second movable plate; 23. limit rod; 24. electric push rod. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1-Figure 4 A wear-resistant coating spraying device for aircraft landing gear includes a base 1 and a landing gear 13. A vertical plate 2 is provided on one side of the base 1. The vertical plate 2 is connected to an extension plate 8 via an arc plate. A horizontal plate 4 is provided at the top center of the vertical plate 2. A drive motor 5 is provided on the horizontal plate 4. The output shaft of the drive motor 5 extends below the horizontal plate 4 and is connected to a rotating disk 7. A slot 16 is provided at the bottom of the rotating disk 7. A first electric telescopic machine 19 is fixedly provided inside the slot 16, and a movable block 20 is fixedly connected to the end of the first electric telescopic machine 19. A first movable plate 21 and a second movable plate 22 are fixedly connected to the surface of the movable block 20. The first movable plate 21 and the second movable plate 22 are both provided with a limit rod 23. A first movable groove 10 and a second movable groove 12 are respectively provided on the vertical plate 2 and the extension plate 8. A spray gun 9 is slidably provided in the first movable groove 10 and the second movable groove 12. A paint box 3 is fixedly installed on the back of the vertical plate 2, and the paint box 3 and the spray gun 9 are connected by a pipeline.

[0022] A pump body is provided inside the paint box 3 , and the paint inside the paint box 3 is delivered to the inside of the spray gun 9 through the pump body and the feeding device. The spray gun 9 is a plasma spraying device.

[0023] The vertical plate 2 is located below the horizontal plate 4 and is further provided with a connecting block 6. The bottom of the connecting block 6 is provided with a clamping block 18. The lower surface of the rotating disk 7 is provided with an annular groove 17. The clamping block 18 extends below the annular groove 17 and is provided with a connecting rod. The connecting rod extends into the annular groove 17 and is arranged to abut against both sides of the annular groove 17.

[0024] A first mounting block 14 is provided at the top of the landing gear 13, and a groove is provided in the middle of the rod body of the landing gear 13. A second mounting block 15 is movably provided in the groove. Both the first mounting block 14 and the second mounting block 15 are provided with sockets adapted to the limit rod 23.

[0025] In particular, the ends of the limit rods 23 are each provided with a recessed portion, in which an electric push rod 24 is arranged. The ends of the electric push rod 24 can extend to one side of the first mounting block 14 and the second mounting block 15, and interfere with the first mounting block 14 and the second mounting block 15 to achieve blocking and prevent the landing gear 13 from being displaced during the spraying process.

[0026] A control panel is also provided on the back of the vertical plate 2. The control panel is electrically connected to the drive motor 5 and the first electric telescopic machine 19 through a PLC programming model S4-400.

[0027] Working principle: When the device is in use, the first mounting block 14 is pre-installed on the landing gear 13 through threads, a groove is pre-opened on the rod surface of the landing gear 13, and a sliding wheel is arranged in the groove. The second mounting block 15 is installed through the sliding wheel, and the movable block 20 is driven to move by the first electric telescopic machine 19, and then the first movable plate 21 and the second movable plate 22 are driven to move, so that the limiting rod 23 is moved to the openings opened on the first mounting block 14 and the second mounting block 15, and then the landing gear 13 is fixed. The rotating disk 7 is limited by the connecting block 6 that contacts the rotating disk 7 and the clamping block 18 fixed on the connecting block 6. The driving motor 5 arranged on the top drives the rotating disk 7 to rotate, thereby realizing the rotation of the landing gear 13, and the landing gear 13 is coated by the spray gun 9 that can move freely up and down.

[0028] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wear-resistant coating spraying device for aircraft landing gear, characterized in that: The invention comprises a base (1) and a landing gear (13), wherein a vertical plate (2) is provided on one side of the base (1), wherein the vertical plate (2) is connected to an extension plate (8) via an arc plate, and a horizontal plate (4) is provided at the top center of the vertical plate (2), wherein a driving motor (5) is provided on the horizontal plate (4), wherein an output shaft of the driving motor (5) extends to the bottom of the horizontal plate (4) and is connected to a rotating disk (7), wherein an empty slot (16) is provided at the bottom of the rotating disk (7), and a first electric telescopic machine (19) is fixedly provided inside the empty slot (16). The end of the first electric telescopic machine (19) is fixedly connected to a movable block (20), the surface of the movable block (20) is fixedly connected to a first movable plate (21) and a second movable plate (22), the first movable plate (21) and the second movable plate (22) are both provided with a limiting rod (23), the vertical plate (2) and the extension plate (8) are respectively provided with a first movable groove (10) and a second movable groove (12), and a spray gun (9) is slidably provided in the first movable groove (10) and the second movable groove (12).

2. The wear-resistant coating spraying equipment for aircraft landing gear according to claim 1, characterized in that: A paint box (3) is fixedly mounted on the back of the vertical plate (2), and the paint box (3) is connected to the spray gun (9) via a pipeline.

3. The wear-resistant coating spraying equipment for aircraft landing gear according to claim 1, characterized in that: The vertical plate (2) is located below the horizontal plate (4) and is further provided with a connecting block (6), and a clamping block (18) is provided at the bottom of the connecting block (6).

4. The wear-resistant coating spraying equipment for aircraft landing gear according to claim 3, characterized in that: An annular groove (17) is formed on the lower surface of the rotating disk (7), the clamping block (18) extends below the annular groove (17) and is provided with a connecting rod, the connecting rod extends into the interior of the annular groove (17), and the connecting rod is arranged to abut against both sides of the annular groove (17).

5. The wear-resistant coating spraying equipment for aircraft landing gear according to claim 1, characterized in that: A first mounting block (14) is provided at the top of the landing gear (13), a groove is provided in the middle of the rod body of the landing gear (13), a second mounting block (15) is movably provided in the groove, and a socket adapted to the limit rod (23) is provided on both the first mounting block (14) and the second mounting block (15).

6. The wear-resistant coating spraying equipment for aircraft landing gear according to claim 1, characterized in that: A control panel is also provided on the back of the vertical plate (2), and the control panel is electrically connected to the drive motor (5) and the first electric telescopic machine (19) via a PLC programming model S4-400.