A rotating shipborne UAV arresting and recovering device

Abstract

The present invention discloses a rotary ship-borne UAV arresting and recovery device, belonging to the technical field of arresting systems for assisting safe landing of carrier-based aircraft. The device comprises a circular platform for landing the ship-borne UAV and a skyhook arresting system T. The skyhook arresting system T comprises a skyhook bracket, a skyhook boom disposed transversely on the top of the skyhook bracket, and skyhook ropes for arresting the ship-borne UAV symmetrically disposed on the skyhook boom. Ground arresting devices D are symmetrically disposed on the circular platforms on both sides of the skyhook bracket. The ground arresting devices D comprise brake devices symmetrically disposed on both sides of the ship-borne UAV landing area, and the two brake devices are connected by arresting cables. The present invention can recover ship-borne UAVs from multiple directions on an aircraft carrier. Installing multiple devices on the deck of the ship can simultaneously recover multiple ship-borne UAVs from different directions, thereby improving the recovery efficiency of the ship-borne UAVs. The present invention also eliminates the need for the traditional complex hydraulic buffer system and the long landing arresting distance, thus saving space on the aircraft carrier deck.

Description

Technical Field

[0001] The present invention belongs to the technical field of arresting systems for assisting safe landing of carrier-based aircraft, and in particular relates to a rotary ship-borne UAV arresting and recovering device. Background Art

[0002] As the primary combat weapon of aircraft carrier formations, carrier-based aircraft are crucial for seizing and maintaining air and sea supremacy on the ocean battlefield. They are indispensable for achieving deep maritime defense and offshore mobile operations. As modern warfare becomes increasingly unmanned, carrier-based drones have become a focus of attention among the world's military powers, prompting a flurry of research and development initiatives.

[0003] The traditional method of arresting manned aircraft on carriers involves a retractable arresting hook mounted on the aircraft's tail, three or four arresting cables laid on the aircraft carrier's deck, an arresting machine installed on the deck, and an arresting net connected to the cables. When the aircraft lands, the arresting hook is lowered, hooking onto the cables. The cables then drive the plunger inside the arresting machine, causing the fluid in the hydraulic cylinder to flow into the reservoir, thereby dissipating the aircraft's kinetic energy. The aircraft typically glides for 50 to 95 meters before stopping, completing its landing. However, for smaller and lighter carrier-based drones, such a complex arresting procedure no longer meets many military operational requirements.

[0004] Therefore, for the recovery of ship-borne drones weighing less than 3 tons, the existing carrier-based aircraft recovery methods have many shortcomings: the existing arresting device makes the landing and rolling area of ​​the ship-borne drone too long, the hydraulic buffer system is complex, has a single direction, and consumes a lot of energy. Summary of the Invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a rotary ship-borne UAV arresting and recovering device, which can recover ship-borne UAVs from multiple directions on an aircraft carrier. By installing multiple devices of the present invention on the ship deck, multiple ship-borne UAVs can be recovered from different directions at the same time, thereby improving the recovery efficiency of ship-borne UAVs.

[0006] Technical solution: To achieve the above purpose, the present invention adopts the following technical solution:

[0007] A rotary shipborne UAV arresting and recovering device comprises a circular platform for landing the shipborne UAV and a skyhook arresting system T; the skyhook arresting system T comprises a skyhook bracket arranged at the center of the circular platform, a skyhook boom arranged transversely on top of the skyhook bracket, and skyhook ropes for arresting the shipborne UAV symmetrically arranged on the skyhook boom; ground arresting devices D are symmetrically arranged on the circular platforms on both sides of the skyhook bracket, and the ground arresting devices D include brake devices symmetrically arranged on both sides of the shipborne UAV landing area, and the two brake devices are connected by an arresting cable.

[0008] Furthermore, a reinforcement mechanism for assisting the skyhook boom in longitudinal load bearing is installed obliquely on the top of the skyhook bracket to form at least one triangular stable structure.

[0009] Furthermore, pulley blocks are symmetrically arranged on the skyhook boom, each of the pulley blocks includes a first pulley and a second pulley, and the skyhook boom is connected to the skyhook rope via the first pulley and the second pulley.

[0010] Furthermore, the skyhook bracket is a telescopic bracket.

[0011] Furthermore, a buffer is provided below the circular platform, and the buffer is located at the projection of the sky hook boom on the circular platform; before the recovery phase begins, the third link of the brake device is in a released state; after the recovery phase begins, the rope pulls the first link, driving the second link, so that the third link is clamped to decelerate the disc.

[0012] Furthermore, a groove for hanging a skyhook rope is provided in the middle of the wing of the shipborne UAV to achieve position limiting of the shipborne UAV.

[0013] Furthermore, the brake device includes a disc clamped by a third connecting rod, and the third connecting rod is connected to the first connecting rod through the second connecting rod; before the recovery phase begins, the third connecting rod of the brake device is in a loose state; during recovery, the rope pulls the first connecting rod, driving the second connecting rod, so that the third connecting rod is clamped to slow down the disc.

[0014] Furthermore, the circular platform area is embedded in the aircraft carrier deck and is flush with the aircraft carrier deck.

[0015] Furthermore, a slide rail for assisting the rotation of the circular platform is installed under the circular platform, and a slider is set above the slide rail; an axis for driving the circular platform to rotate is set at the lower center of the circular platform, and a bearing and a fastening nut for matching use are set at the axis.

[0016] Furthermore, the slide rail is in the shape of a circular ring, and the slider is in the shape of a fan-shaped circular ring with a hollow center.

[0017] Beneficial Effects: Compared with existing technologies, the rotary shipborne UAV arresting and recovery device of the present invention can recover shipborne UAVs from multiple directions on an aircraft carrier. Installing multiple devices on the deck of a ship can simultaneously recover multiple shipborne UAVs from different directions, improving recovery efficiency. Furthermore, the present invention has a simple structure, eliminating the need for complex hydraulic buffer systems and long landing arresting distances, thus conserving space on the aircraft carrier deck. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the carrier-based aircraft arresting and recovery system when arresting a carrier-based UAV;

[0019] Figure 2 This is a front view of the main arresting gear system;

[0020] Figure 3 This is a schematic diagram of the skyhook support in the skyhook system after it is retracted;

[0021] Figure 4 A cross-sectional view of the buffer used to tighten the skyhook system rope, which is placed inside the circular platform;

[0022] Figure 5 This is a wing diagram of a shipborne UAV;

[0023] Figure 6 A schematic diagram of the structure of the groove feature of the local reinforcement of the wing;

[0024] Figure 7 A perspective view of the brake device for the ground arresting gear;

[0025] Figure 8 This is a bottom view of the brake system for the ground arresting gear;

[0026] Figure 9 This is a schematic diagram of the installation of the circular platform embedded in the deck and the deck;

[0027] Figure numerals: 1-aircraft carrier deck, 2-circular platform, 3-brake device, 4-arresting cable, 5-arresting hook, 6-wing feature groove, 7-skyhook rope, 8-skyhook boom, 9-first pulley, 10-second pulley, 11-reinforcement mechanism, 12-skyhook bracket, 13-shipborne UAV, 14-buffer, 15-slide rail, 16-slider, 17-shaft, 18-bearing, 19-fastening nut, 3-1-first connecting rod, 3-2-second connecting rod, 3-3-third connecting rod, 3-4-disc. DETAILED DESCRIPTION

[0028] To further clarify the technical problems, technical solutions, and advantages to be solved by the present invention, a detailed description is provided below with reference to the accompanying drawings and an actual software system reliability analysis example. In the present invention, unless otherwise specified or limited, the term "installation" and other terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a linear connection, a connection through an intermediate medium, or the internal connection between two components.

[0029] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to actual circumstances.

[0030] like Figure 1 As shown, a rotary shipborne UAV arresting and recovery device includes a circular platform 2 for landing a shipborne UAV 13, a skyhook arresting system T, and a ground arresting device D. The skyhook arresting system T includes a skyhook boom 8, a skyhook bracket 12, a skyhook rope 7, and a reinforcement mechanism 11. The skyhook bracket 12 is mounted at the center of the circular platform 2, and a horizontal skyhook boom 8 is mounted on top of the skyhook bracket 12. A reinforcement mechanism 11 is installed diagonally on top of the skyhook boom 8 and the skyhook bracket 12. Due to the triangular stabilizing structure, the entire skyhook system is more stable and can bear longitudinal loads.

[0031] A skyhook bracket 12 is located at the center of the circular platform 2. A reinforcement structure 11 is located above the bracket 12 to support the longitudinal load of the skyhook boom 8. After determining the wingspan of the shipborne drone 13, a first pulley 9 and a second pulley 10 are calculated and positioned above the bracket at appropriate locations to facilitate hooking the ropes suspended from the pulleys. The first pulley 9 and the second pulley 10 are each connected to the skyhook rope 7. Recovery devices are symmetrically located on either side of the skyhook bracket 12. Each recovery device includes a skyhook arresting system T and a ground arresting device D. The ground arresting device D includes brake devices 3 symmetrically located on either side of the landing area for the shipborne drone 13. The two brake devices 3 are connected by an arresting cable 4.

[0032] like Figure 2-3 As shown, the skyhook bracket 12 in the skyhook system T can be retracted after use to save space on the aircraft carrier.

[0033] like Figure 4 As shown, the buffer 14 is installed below the circular platform 2, located at the projection of the skyhook boom 8 onto the circular platform 2. The buffer 14 is a hydraulic buffer. A typical hydraulic buffer primarily consists of a cylinder, a push rod, a piston, a return spring, and a hydraulic cylinder head. The hydraulic buffer's return spring is connected between the piston and the bottom of the cylinder, and the other end of the push rod is rotatably connected to a buffer pulley. The chassis is provided with an inlet and outlet for the skyhook rope 7, and a buffer follower wheel is provided outside the chassis. One end of the arresting cable 4 is wound around a reel, and the other end of the skyhook rope 7 sequentially passes around the buffer pulleys on each hydraulic buffer and extends out of the arresting cable inlet and outlet to the outside of the chassis. When the recovery process begins, the shipborne drone 13 hooks the skyhook rope 7, stretching it. The buffer 14 can then tighten the skyhook rope 7, thereby limiting the displacement of the shipborne drone 13's wings.

[0034] like Figure 5-6 As shown, a wing characteristic groove 6 is provided in the middle of the wing of the shipborne UAV 13 to facilitate the hooking of the skyhook rope 7, thereby limiting the position of the shipborne UAV 13.

[0035] The position of the arresting hook 5 needs to be designed according to different types of shipborne UAVs 13, and is generally installed at the tail of the shipborne UAV 13, such as Figure 7-8 As shown, before the recovery phase begins, the various mechanisms of the brake device 3 are in a clamped state. When the arresting hook 5 hooks the arresting cable 4, a small section of the arresting cable 4 is pulled out from the disc 3-4, and the hydraulic cylinder connected to the first connecting rod 3-1 starts to work, exerting a reaction force to drive the first connecting rod 3-1, the second connecting rod 3-2, and the third connecting rod 3-3 to clamp the disc 3-4 around which the arresting cable 4 is wound. As a result, the arresting cable 4 is limited and will only be stretched a short distance, thereby buffering a small portion of the directional kinetic energy of the ship-borne UAV 13.

[0036] like Figure 9 As shown, the circular platform 2 area is embedded in the aircraft carrier deck 1 and is flush with the aircraft carrier deck 1, which does not affect the completion of other tasks of the aircraft carrier. Figure 9 shown.

[0037] Installed beneath the circular platform 2 are a slide rail 15 and slider 16, a shaft 17, a bearing 18, and a fastening nut 19 to assist the circular platform 2 in rotating. The slide rail 15 and slider 16 are installed beneath the circular platform 2. The slide rail 15 is in the shape of a circular ring, while the slider 16 is in the shape of a sector ring. The slider 16 is hollowed out in the middle and is installed above the slide rail 15 through special features. When the circular platform 2 rotates, the slide rail 15 and slider 16 can assist the circular platform 2 in rotating. The shaft 17 is fixedly installed at the lower center of the circular platform 2, driving the circular platform 2 to rotate; when the circular platform 2 rotates, the slide rail 15 rotates accordingly. The inner ring of the bearing 18 and the shaft 17 are tightly fitted, and the fastening nut 19 is used to lock the shaft 17 and the bearing 18.

[0038] Working process: The circular platform 2 is embedded in the ship's deck, and a skyhook arresting system T and a ground arresting device D are placed at a certain distance from the center of the circular platform 2. When the ship-borne UAV 13 lands in the area of ​​the circular platform 2, the arresting hook 5 at the rear of the fuselage hooks the arresting cable 4 of the ground arresting device D. The arresting cable 4 is only pulled out to a limited length because its brake mechanism limits the arresting cable 4. At this time, a small amount of the engine kinetic energy of the ship-borne UAV 13 is buffered. Therefore, the ship-borne UAV 13 continues to slide along the tangent direction of the platform. The characteristic groove 6 of its wing hooks the skyhook cable 7, and its wings are also limited. Then, the aircraft drives the circular platform 2 to rotate, and most of the remaining engine kinetic energy is consumed by the friction force during the rotation of the circular platform 2. If the shipborne drone 13 deviates, the arresting system, comprised of the skyhook arresting system T and the ground arresting device D, ensures that even if the shipborne drone 13 is off-center or the arresting hook 5 is above the ground arresting cable 4 during landing, the drone can still be hooked by the skyhook cable 7 on at least one wing's characteristic groove 6, allowing for smooth recovery and improving the success rate of arrest. The circular platform 2 can recover the shipborne drone 13 from any angle on the aircraft carrier. Deploying multiple platforms on the aircraft carrier allows for multiple drones to be recovered from different directions, improving the efficiency of the shipborne drone 13 recovery process.

[0039] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art in the art to which the present invention pertains. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as such herein, will not be interpreted in an idealized or overly formal sense.

[0040] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary shipborne UAV arresting and recovering device, characterized by: The invention comprises a circular platform (2) for landing a shipborne UAV (13) and a skyhook arresting system T; the skyhook arresting system T comprises a skyhook bracket (12) arranged at the center of the circular platform (2), the skyhook bracket (12) is a telescopic bracket, a skyhook boom (8) is arranged horizontally on the top of the skyhook bracket (12), and a skyhook rope (7) for arresting the shipborne UAV (13) is symmetrically arranged on the skyhook boom (8); a slide rail (15) for assisting the circular platform (2) to rotate is installed below the circular platform (2), and a skyhook rope (7) for arresting the shipborne UAV (13) is arranged symmetrically on the skyhook boom (8). A slider (16) is provided above the slide rail (15), and a shaft (17) for driving the circular platform (2) to rotate is provided at the lower center of the circular platform (2), and a bearing (18) and a fastening nut (19) for use therewith are provided at the shaft (17); a ground arresting device D is symmetrically provided on the circular platforms (2) on both sides of the sky hook bracket (12), and the ground arresting device D includes brake devices (3) symmetrically provided on both sides of the landing area of ​​the shipborne UAV (13), and the two brake devices (3) are connected by an arresting cable (4).

2. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: A reinforcement mechanism (11) for assisting the longitudinal bearing of the skyhook boom (8) is obliquely installed on the top of the skyhook bracket (12), forming at least one triangular stable structure.

3. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: A pulley block is symmetrically arranged on the sky hook boom (8), and each pulley block includes a first pulley (9) and a second pulley (10). The sky hook boom (8) is connected to the sky hook rope (7) through the first pulley (9) and the second pulley (10).

4. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: A buffer (14) is provided below the circular platform (2), and the buffer (14) is located at the projection of the skyhook boom (8) on the circular platform (2); when the recovery process begins, the shipborne UAV (13) hooks the skyhook rope (7), stretches the skyhook rope (7), and the buffer (14) tightens the skyhook rope (7) to limit the displacement of the wing of the shipborne UAV (13).

5. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: A groove (6) for hanging a skyhook rope (7) is provided in the middle of the wing of the shipborne UAV (13), thereby achieving position limiting of the shipborne UAV (13).

6. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: The brake device (3) includes a disc (3-4) clamped by a third connecting rod (3-3), and the third connecting rod (3-3) is connected to the first connecting rod (3-1) through the second connecting rod (3-2); before the recovery phase begins, the third connecting rod (3-3) of the brake device (3) is in a loose state; after the recovery phase begins, the rope pulls the first connecting rod (3-1), driving the second connecting rod (3-2), so that the third connecting rod (3-3) is clamped, thereby slowing down the disc (3-4).

7. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: The circular platform (2) area is embedded in the aircraft carrier deck (1) and is flush with the aircraft carrier deck (1).

8. The rotary shipborne UAV arresting and recovering device according to claim 1, characterized in that: The slide rail (15) is in the shape of a circular ring, and the slider (16) is in the shape of a sector circular ring with a hollow center.

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