Aircraft door damping adjusting device

Abstract

The utility model discloses an aircraft door damping adjusting device, which belongs to the technical field of aircraft door damping, and comprises a shell, an air cylinder is fixedly mounted at the top of the shell, a sleeve is fixedly mounted in the shell, a buffer is arranged on one side of the sleeve, and the buffer is arranged on the other side of the sleeve. The buffer is inserted into the sleeve and slidably connected with the sleeve, a damper body is fixedly installed in the sleeve, a sliding plate is fixedly installed at the output end of the damper body and slidably connected with the sleeve, the sliding plate is fixedly connected with the buffer, and a buffer spring is arranged on the outer side of the damper body. The two ends of the buffer spring are fixedly connected with the sleeve and the sliding plate correspondingly, the sliding plate on the outer sides of the two threaded rods is driven by the arranged servo motor to transversely move, the arranged damper body is matched with the buffer spring, the tension of the buffer spring in the sliding plate is adjusted, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft door damping, and more particularly to an aircraft door damping regulating device. Background Art

[0002] Aircraft door dampers are devices that provide resistance to movement and dissipate energy. They are widely used in the aerospace industry. For example, in aircraft landing gear systems, dampers absorb the impact of landing, reducing vibration during landing and protecting the aircraft structure and passengers. Furthermore, dampers play a vital role during spacecraft launch and re-entry, helping to stabilize the spacecraft's attitude and reduce vibration and impact.

[0003] When the existing aircraft door damper is in use, the tension of the reset spring is fixed and cannot be adjusted, resulting in the aircraft door resetting speed being too fast or too slow. Therefore, an aircraft door damping adjustment device is proposed to address the above problem. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide an aircraft door damping adjustment device, which drives the slide on the outside of the two threaded rods to move laterally through a set servo motor, and adjusts the tension of the buffer spring inside the slide by cooperating with the set damper body and buffer spring, making it more convenient to use.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A damping adjustment device for an aircraft door comprises a shell, a cylinder fixedly mounted on the top of the shell, a sleeve fixedly mounted inside the shell, a buffer provided on one side of the sleeve, the buffer inserted into the sleeve and slidably connected thereto, a damper body fixedly mounted inside the sleeve, a slide fixedly mounted on the output end of the damper body, the slide slidably connected to the sleeve, the slide fixedly connected to the buffer, a buffer spring provided on the outside of the damper body, the two ends of the buffer spring fixedly connected to the sleeve and the slide respectively, threaded rods are provided inside the sleeve and on corresponding sides of the slide, the two threaded rods are both rotatably connected to the sleeve, and the two threaded rods pass through the slide and are threadedly connected thereto.

[0009] Furthermore, a worm wheel is fixedly installed on one side of the two threaded rods, a worm is meshed on the outer side of the two worm wheels, a fixed rod is fixedly installed on one side of the two worms, a pulley is fixedly installed on one side of the two fixed rods, the two worm wheels, worms, fixed rods and pulleys are all rotatably connected to the sleeve, the outer sides of the two pulleys are connected to the transmission with a synchronous belt, a servo motor is fixedly installed inside the sleeve, and the output end of the servo motor is fixedly connected to one of the pulleys.

[0010] Furthermore, arc-shaped plates are fixedly installed inside the sleeve and on the corresponding two sides of the damper body, and the two arc-shaped plates pass through the slide plate and are slidably connected thereto.

[0011] Furthermore, a hose is provided inside the shell, the hose passes through the shell and is slidably connected thereto, cavities are provided inside the cylinder and the buffer and on corresponding sides of the hose, the hose is communicated with the two cavities, the hose is inserted into the inside of the sleeve and is slidably connected thereto, a hydraulic cylinder is fixedly installed inside the cylinder, a piston is fixedly installed at the output end of the hydraulic cylinder, the piston is slidably connected to the cylinder, a connecting pipe is fixedly installed inside the shell, the connecting pipe is communicated with one of the cavities, and a valve is provided inside the cylinder and on the outside of the connecting pipe.

[0012] Furthermore, a brake rod is provided on the side of the buffer away from the sleeve, and a T-shaped slider is fixedly installed on the side of the brake rod close to the buffer, and the T-shaped slider is inserted into the interior of the buffer and slidably connected thereto. Guide rods are fixedly installed on the side of the brake rod close to the buffer and on the corresponding two sides of the T-shaped slider, and both guide rods are inserted into the interior of the buffer and slidably connected thereto.

[0013] Furthermore, a controller is fixedly installed inside the sleeve, and the controller is electrically connected to the servo motor, the hydraulic cylinder and the valve.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution uses a servo motor to drive the slide plate outside the two threaded rods to move horizontally, and through the cooperation of the damper body and the buffer spring, the tension of the buffer spring inside the slide plate can be adjusted, which is more convenient to use.

[0017] (2) This solution uses the hydraulic cylinder to move the piston laterally, and further allows the gas inside the cylinder to be transported to the inside of the buffer through the provided connecting pipe, so that the T-shaped slider moves laterally to adjust the overall length of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a front cross-sectional structural diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0021] Explanation of the numbers in the figure: 1. Housing; 2. Cylinder; 3. Sleeve; 4. Slide plate; 5. Buffer; 6. Brake rod; 7. Damper body; 8. Buffer spring; 9. Threaded rod; 10. Worm gear; 11. Worm; 12. Fixed rod; 13. Pulley; 14. Synchronous belt; 15. Servo motor; 16. Hose; 17. T-slider; 18. Connecting pipe; 19. Hydraulic cylinder; 20. Piston; 21. Valve; 22. Arc plate; 23. Controller. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Example:

[0026] See also Figure 1-2 A damping adjustment device for an aircraft door includes a shell 1, a cylinder 2 is fixedly mounted on the top of the shell 1, a sleeve 3 is fixedly mounted inside the shell 1, a buffer 5 is provided on one side of the sleeve 3, the buffer 5 is inserted into the sleeve 3 and is slidably connected thereto, a damper body 7 is fixedly mounted inside the sleeve 3, a slide plate 4 is fixedly mounted on the output end of the damper body 7, the slide plate 4 is slidably connected to the sleeve 3, the slide plate 4 is fixedly connected to the buffer 5, a buffer spring 8 is provided on the outside of the damper body 7, and the two ends of the buffer spring 8 are fixedly connected to the sleeve 3 and the slide plate 4 respectively, and threaded rods 9 are provided inside the sleeve 3 and on the corresponding sides of the slide plate 4, the two threaded rods 9 are rotatably connected to the sleeve 3, and the two threaded rods 9 pass through the slide plate 4 and are threadedly connected thereto.

[0027] Driven by the provided servo motor 15 and coordinated with the provided damper body 7 and the buffer spring 8, the tension of the buffer spring 8 inside the slide plate 4 can be adjusted, making it more convenient to use.

[0028] A controller 23 is fixedly installed inside the sleeve 3, and the controller 23 is electrically connected to the servo motor 15, the hydraulic cylinder 19 and the valve 21. Arc plates 22 are fixedly installed inside the sleeve 3 and on the corresponding two sides of the damper body 7. The two arc plates 22 pass through the skateboard 4 and are slidably connected to it. The equipment on the device is controlled by the set controller 23, and the controller 23 is electrically connected to the controller on the body for control. The set arc plate 22 plays a role of limiting the lateral movement of the skateboard 4. At the same time, a heat dissipation hole that cooperates with the servo motor 15 is opened on the shell 1 of the device to prevent the servo motor 15 from being damaged due to failure to dissipate heat during operation.

[0029] A hose 16 is provided inside the shell 1, and the hose 16 passes through the shell 1 and is slidably connected thereto. Cavities are provided inside the cylinder 2 and the buffer 5 and on corresponding sides of the hose 16. The hose 16 is connected to the two cavities. The hose 16 is inserted into the interior of the sleeve 3 and is slidably connected thereto. A hydraulic cylinder 19 is fixedly installed inside the cylinder 2, and a piston 20 is fixedly installed at the output end of the hydraulic cylinder 19. The piston 20 is slidably connected to the cylinder 2. A connecting pipe 18 is fixedly installed inside the shell 1, and the connecting pipe 18 is connected to one of the cavities. A valve 21 is provided inside the cylinder 2 and on the outside of the connecting pipe 18.

[0030] A brake rod 6 is provided on the side of the buffer 5 away from the sleeve 3, and a T-shaped slider 17 is fixedly installed on the side of the brake rod 6 close to the buffer 5. The T-shaped slider 17 is inserted into the interior of the buffer 5 and is slidably connected thereto. Guide rods are fixedly installed on the side of the brake rod 6 close to the buffer 5 and on the corresponding two sides of the T-shaped slider 17, and both guide rods are inserted into the interior of the buffer 5 and are slidably connected thereto.

[0031] The piston 20 is moved laterally by the operation of the hydraulic cylinder 19, and the gas inside the cylinder 2 is further transported to the inside of the buffer 5 through the provided connecting pipe 18, thereby realizing the lateral movement of the T-shaped slider 17, and further adjusting the overall length of the device to improve the applicability of the device. At the same time, a sealing ring is provided at the intersection of the buffer 5 and the brake rod 6 to improve the sealing effect of the device.

[0032] See also Figure 3 A worm wheel 10 is fixedly installed on one side of the two threaded rods 9, and a worm 11 is meshed on the outside of the two worm wheels 10. A fixed rod 12 is fixedly installed on one side of the two worm gears 11, and a pulley 13 is fixedly installed on one side of the two fixed rods 12. The two worm wheels 10, the worm gears 11, the fixed rod 12 and the pulley 13 are all rotatably connected to the sleeve 3, and the outer sides of the two pulleys 13 are connected to the synchronous belt 14. A servo motor 15 is fixedly installed inside the sleeve 3, and the output end of the servo motor 15 is fixedly connected to one of the pulleys 13. The worm wheel 10 and the worm gear 11 are provided with a self-locking function to improve its stability after its position is moved.

[0033] Working principle: driven by the servo motor 15 and acted by the synchronous belt 14, the two fixed rods 12 on one side of the two pulleys 13 rotate synchronously, driving the worm wheels 10 on the outside of the two worm gears 11 to engage, so that the slide 4 on the outside of the two threaded rods 9 moves laterally, and the damper body 7 and the buffer spring 8 are coordinated to adjust the tension of the buffer spring 8 inside the slide 4, and the hydraulic cylinder 19 is operated to make the piston 20 move laterally, and further make the gas inside the cylinder 2 be transported to the inside of the buffer 5 through the connecting pipe 18, and the T-shaped slider 17 is moved laterally to adjust the overall length of the device.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. An aircraft door damping adjustment device, comprising a housing (1), characterized in that: A cylinder (2) is fixedly mounted on the top of the housing (1), a sleeve (3) is fixedly mounted inside the housing (1), a buffer (5) is arranged on one side of the sleeve (3), the buffer (5) is inserted into the sleeve (3) and is slidably connected thereto, a damper body (7) is fixedly mounted inside the sleeve (3), a slide plate (4) is fixedly mounted on the output end of the damper body (7), the slide plate (4) is slidably connected to the sleeve (3), the slide plate (4) is fixedly connected to the buffer (5), a buffer spring (8) is arranged on the outside of the damper body (7), the two ends of the buffer spring (8) are respectively fixedly connected to the sleeve (3) and the slide plate (4), a threaded rod (9) is arranged inside the sleeve (3) and on the corresponding two sides of the slide plate (4), the two threaded rods (9) are both rotatably connected to the sleeve (3), and the two threaded rods (9) pass through the slide plate (4) and are threadedly connected thereto.

2. The aircraft door damping adjustment device according to claim 1, characterized in that: A worm wheel (10) is fixedly mounted on one side of the two threaded rods (9), a worm (11) is meshed with an outer side of the two worm wheels (10), a fixed rod (12) is fixedly mounted on one side of the two worm wheels (11), a pulley (13) is fixedly mounted on one side of the two fixed rods (12), the two worm wheels (10), the worm (11), the fixed rod (12) and the pulley (13) are all rotatably connected to the sleeve (3), the outer sides of the two pulleys (13) are connected to a synchronous belt (14), a servo motor (15) is fixedly mounted inside the sleeve (3), and the output end of the servo motor (15) is fixedly connected to one of the pulleys (13).

3. The aircraft door damping adjustment device according to claim 1, characterized in that: Arc plates (22) are fixedly installed inside the sleeve (3) and on the corresponding two sides of the damper body (7), and the two arc plates (22) both penetrate the slide plate (4) and are slidably connected thereto.

4. The aircraft door damping adjustment device according to claim 1, characterized in that: A hose (16) is provided inside the housing (1), and the hose (16) passes through the housing (1) and is slidably connected thereto. Cavities are provided inside the cylinder (2) and the buffer (5) and on opposite sides of the hose (16). The hose (16) is connected to the two cavities. The hose (16) is inserted into the interior of the sleeve (3) and is slidably connected thereto. A hydraulic cylinder (19) is fixedly installed inside the cylinder (2), and a piston (20) is fixedly installed at the output end of the hydraulic cylinder (19). The piston (20) is slidably connected to the cylinder (2). A connecting pipe (18) is fixedly installed inside the housing (1), and the connecting pipe (18) is connected to one of the cavities. A valve (21) is provided inside the cylinder (2) and on the outside of the connecting pipe (18).

5. The aircraft door damping adjustment device according to claim 4, characterized in that: A brake rod (6) is provided on the side of the buffer (5) away from the sleeve (3); a T-shaped slider (17) is fixedly installed on the side of the brake rod (6) close to the buffer (5); the T-shaped slider (17) is inserted into the interior of the buffer (5) and is slidably connected thereto; guide rods are fixedly installed on the side of the brake rod (6) close to the buffer (5) and on the corresponding two sides of the T-shaped slider (17); and both guide rods are inserted into the interior of the buffer (5) and are slidably connected thereto.

6. The aircraft door damping adjustment device according to claim 1, characterized in that: A controller (23) is fixedly installed inside the sleeve (3), and the controller (23) is electrically connected to the servo motor (15), the hydraulic cylinder (19) and the valve (21).

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