Aircraft landing and rolling arresting mechanism

Abstract

The present invention discloses an aircraft landing and rolling arresting mechanism, which relates to the technical field of aircraft arresting. The key points of its technical solution include a fixed seat, at least two of which are provided and symmetrically fixed on both sides of a runway; the rotating lifting ring is adjustable and detachably installed on the fixed seat; the pulley blocks on both sides are suspended on the corresponding rotating lifting rings, and a main fish hook rope is hung on the movable pulley of the pulley block, and the main fish hook rope is fixedly connected to a fish hook rope branch rope; the weight is fixedly connected to the fish hook rope branch rope, and the weight is located on the runway surface; the arresting cable is located between the pulley blocks on both sides, and the arresting cable is fixedly connected to the end of the main fish hook rope away from one end of the fish hook rope branch rope, so that it can provide reliable arresting resistance when the aircraft lands and rolls, ensuring that the aircraft can safely and quickly decelerate and stop.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft arresting technology, and more particularly, to an aircraft landing and rolling arresting mechanism. Background Art

[0002] In aviation, aircraft need to safely decelerate to a stop within a short runway distance when landing. Traditional aircraft braking systems rely primarily on wheel brakes, but this braking method has limitations. As aircraft weight and landing speeds continue to increase, the wheel brake system must withstand tremendous friction, which leads to increased wear on the brake discs and pads, increasing maintenance costs and replacement frequency. Furthermore, in some special circumstances, such as a slippery runway or a brake system failure, relying solely on wheel brakes may not guarantee a safe landing. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide an aircraft landing and rolling arresting mechanism.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An aircraft landing and rolling arresting mechanism, comprising:

[0006] There are at least two fixing seats, which are symmetrically fixed on both sides of the runway.

[0007] The rotating lifting ring is adjustable and detachably mounted on the fixing seat.

[0008] The pulley blocks on both sides are suspended on corresponding rotating rings, and a main fish hook rope is hung on the movable pulley of the pulley block, and the main fish hook rope is fixedly connected to a fish hook rope branch rope.

[0009] A weight is fixedly connected to the fish hook rope support rope, and the weight is located on the runway surface.

[0010] The arresting cable is located between the pulley blocks on both sides. The arresting cable is fixedly connected to the end of the main rope of the fishhook rope away from one end of the fishhook rope branch rope. The arresting cable is used for arresting the aircraft during landing and rolling.

[0011] The tail hook is movably connected to the lower part of the belly of the aircraft. When the aircraft lands and rolls, the position of the tail hook is adjusted so that the tail hook hooks the arresting cable.

[0012] Preferably, a mounting groove extending vertically is provided on the fixing seat, a screw is fixedly connected to the rotating eye, one end of the screw passes through the mounting groove adapted thereto, and a gasket nut is threadedly connected to the screw.

[0013] Preferably, the fixing seat is fixedly connected to the runway surface via ground nails.

[0014] Preferably, it also includes support balls, which are evenly spaced and fixedly connected to the arresting cable, and the support balls are used to support the arresting cable so that there is a distance between the arresting cable and the runway ground.

[0015] Preferably, the weight is fixedly connected to the fish hook rope support rope through a lock buckle.

[0016] Preferably, the pulley block is suspended on the rotating lifting ring through a D-shaped steel lock.

[0017] Preferably, it also includes:

[0018] A tail hook connecting rod 1, one end of which is rotatably connected to the belly of the aircraft.

[0019] A pneumatic telescopic rod, wherein the fixed end of the pneumatic telescopic rod is rotatably connected to the belly of the aircraft, and the piston rod of the pneumatic telescopic rod is rotatably connected to the middle position of the tail hook connecting rod 1.

[0020] The tail hook connecting rod 2 has one end fixedly connected to the tail hook connecting rod 1, and the other end of the tail hook connecting rod 2 is detachably connected to the tail hook.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The aircraft landing roll arresting mechanism of the present invention, through the coordinated operation of components such as a fixed base, a rotating eye, a pulley block, a hook rope, a weight, an arresting cable, and a tail hook, can provide reliable arresting force during an aircraft's landing roll, ensuring that the aircraft can safely and quickly decelerate and stop. The rotating eye is adjustable and removably mounted on the fixed base. This design allows for flexible adjustment of the height and position of the pulley block and arresting cable according to different aircraft types and runway conditions, improving the versatility and adaptability of the arresting mechanism. Utilizing components such as the pulley block and hook rope, the kinetic energy of the aircraft's roll is converted into the movement of the weight, and arrestment is achieved through friction between the weight and the ground. This method rationally utilizes mechanical principles to achieve efficient force transmission and energy conversion, reducing reliance on the aircraft's own braking system. The tail hook can adjust its position as needed during the aircraft's landing roll to hook the arresting cable, ensuring a smooth arrest process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of an unarrested state of an aircraft landing roll arresting mechanism is provided for the present invention;

[0024] Figure 2 A schematic diagram of an arrested state of an aircraft landing roll arresting mechanism is provided for the present invention;

[0025] Figure 3 The present invention provides a schematic diagram of the connection between a fixed seat and a rotating lifting ring in an aircraft landing and rolling arresting mechanism;

[0026] Figure 4 The present invention provides a schematic diagram of the connection between a weight and a pulley assembly in an aircraft landing and rolling arresting mechanism;

[0027] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0028] Figure 6 The present invention provides a connection schematic diagram of a tail hook in an aircraft landing and rolling arresting mechanism.

[0029] 1. Fixed seat; 2. Rotating eye; 3. Pulley block; 4. Main rope of fishing hook; 5. Support rope of fishing hook; 6. Weight; 7. Arresting rope; 8. Tail hook; 9. Mounting slot; 10. Screw; 11. Washer nut; 12. Ground nail; 13. Support ball; 14. Tail hook connecting rod 1; 15. Pneumatic telescopic rod; 16. Tail hook connecting rod 2. DETAILED DESCRIPTION

[0030] Reference Figures 1 to 6 shown.

[0031] Example 1 further illustrates an aircraft landing and rolling arresting mechanism proposed by the present invention.

[0032] An aircraft landing and rolling arresting mechanism, comprising:

[0033] The fixing seat 1 is provided with at least two fixing seats 1 and is symmetrically fixed on both sides of the runway.

[0034] The rotating lifting ring 2 is adjustable and detachably mounted on the fixing seat 1.

[0035] The pulley blocks 3 on both sides are suspended on the corresponding rotating rings 2, and the movable pulleys of the pulley blocks 3 are hung with a main fish hook rope 4, and the main fish hook rope 4 is fixedly connected with a branch fish hook rope 5.

[0036] The weight 6 is fixedly connected to the fish hook rope support rope 5, and the weight 6 is located on the runway surface.

[0037] The arresting cable 7 is located between the pulley blocks 3 on both sides. The arresting cable 7 is fixedly connected to the end of the main rope 4 of the fishhook rope away from one end of the fishhook rope branch rope 5. The arresting cable 7 is used for landing and rolling arresting of the aircraft.

[0038] The tail hook 8 is movably connected to the lower part of the belly of the aircraft. When the aircraft lands and rolls, the position of the tail hook 8 is adjusted so that the tail hook 8 hooks the arresting cable 7.

[0039] In the initial state, the fixed seats 1 are symmetrically fixed on both sides of the runway, the arresting cable 7 is located between the fixed seats 1 on both sides, and the arresting cable 7 is located in the middle of the runway. Since the tail hook 8 is movably connected under the belly of the aircraft, the tail hook 8 is in the retracted position in the initial state.

[0040] When the aircraft is landing and rolling, and when the aircraft is landing and rolling close to the arresting mechanism, the position of the tail hook 8 is adjusted to be lowered, and as the aircraft continues to roll, the tail hook 8 hooks the arresting cable 7.

[0041] During the arresting process, after the tail hook 8 hooks the arresting cable 7, the arresting cable 7 will be pulled due to the taxiing movement of the aircraft. The movement of the arresting cable 7 drives the main rope 4 of the fish hook rope connected to it to move. The main rope 4 of the fish hook rope changes the direction and magnitude of the force through the pulley group 3. The pulley group 3 transmits the tension of the main rope 4 of the fish hook rope to the branch rope 5 of the fish hook rope, and then drags the weight 6 to move on the runway surface. The weight 6 generates friction with the runway surface. This friction is the arresting resistance to the aircraft's taxiing, thereby causing the aircraft to gradually slow down until it stops.

[0042] After the aircraft stops in the end state, each component can be inspected and maintained as needed to prepare for the next arresting operation. During the whole process, the adjustable design of the rotating ring 2 can flexibly adjust parameters such as the height of the pulley block 3 and the arresting cable 7 according to actual conditions to adapt to different aircraft and runway conditions.

[0043] Also includes:

[0044] The tail hook connecting rod 14 has one end which is rotatably connected to the belly of the aircraft.

[0045] The pneumatic telescopic rod 15 has a fixed end that is rotatably connected to the belly of the aircraft, and a piston rod of the pneumatic telescopic rod 15 is rotatably connected to the middle position of the tail hook connecting rod 14.

[0046] Tail hook link 2 16, one end of the tail hook link 2 16 is fixedly connected to the tail hook link 1 14, and the other end of the tail hook link 2 16 is detachably connected to the tail hook 8, and the tail hook 8 can be installed on the tail hook link 2 16 by means of bolts or other disassembly methods.

[0047] The combination of tail hook link 14, pneumatic telescopic rod 15, and tail hook link 2 16 allows precise control of the position of tail hook 8. The pneumatic telescopic rod 15 can be extended and retracted as needed, driving tail hook link 14 and tail hook link 2 16 to move, allowing tail hook 8 to accurately hook arresting cable 7 during landing and rolling, thereby improving the success rate of the arresting operation.

[0048] The tail hook link 1 14 and the tail hook link 2 16 are respectively connected by a rotational connection and a detachable connection, which ensures the connection strength while facilitating installation, disassembly and maintenance.

[0049] When the aircraft has not landed, the pneumatic telescopic rod 15 is in an initial state, and the tail hook 8 is usually in a retracted position.

[0050] When the aircraft prepares for landing and rolling, pneumatic telescopic rod 15 begins to operate. Its piston rod extends, pushing tail hook link 1 14 to rotate about its connection point with the aircraft's belly. Since tail hook link 2 16 is connected to tail hook link 1 14 and its other end is connected to tail hook 8, the rotation of tail hook link 1 14 drives tail hook link 2 16, lowering tail hook 8 from its stowed position to the appropriate height, ready to hook arresting cable 7.

[0051] When the aircraft rolls on the runway and tail hook 8 hooks onto arresting cable 7, the aircraft's rolling kinetic energy is transferred through arresting cable 7 to pulley block 3 and other components, which in turn drags weight 6 to generate arresting force. During this process, tail hook 8 and its linkage mechanism must withstand significant tension. The structure consisting of tail hook link 14, pneumatic telescopic rod 15, and tail hook link 2 16 maintains a stable connection between tail hook 8 and arresting cable 7, ensuring a smooth arrest process.

[0052] After the aircraft stops, the piston rod of the pneumatic telescopic rod 15 retracts, pulling the tail hook connecting rod 14 to rotate in the opposite direction, thereby driving the tail hook 8 to be retracted again. The detachable connection between the tail hook connecting rod 2 16 and the tail hook 8 facilitates the inspection and maintenance of the tail hook 8, and the tail hook 8 can be easily disassembled and replaced when necessary.

[0053] The second embodiment adds the following technical features based on the first embodiment:

[0054] A mounting groove 9 extending vertically is provided on the fixing base 1 , a screw rod 10 is fixedly connected to the rotating eye 2 , one end of the screw rod 10 passes through the mounting groove 9 adapted thereto, and a washer nut 11 is threadedly connected to the screw rod 10 .

[0055] By providing a vertically extending mounting slot 9 on the fixing base 1 and connecting them with a screw 10 and a washer nut 11, the height of the rotating eye 2 can be flexibly adjusted. This design allows the height of the arresting cable 7 to be easily adjusted according to the landing requirements of different aircraft and runway conditions, thereby improving the adaptability of the arresting mechanism.

[0056] The connection between the screw 10 and the washer nut 11 provides a reliable fixation effect. The washer nut 11 can prevent the screw 10 from loosening, ensuring the stability of the rotating eye 2 during use, thereby ensuring the normal operation of the entire arresting mechanism during the landing roll of the aircraft and reducing the risk of failure due to structural instability.

[0057] This connection structure is relatively simple and easy to install and disassemble. During installation, the swivel eye 2 can be easily mounted on the fixing base 1, and precise installation can be achieved by adjusting the position of the screw 10. During maintenance, relevant components can also be easily inspected and replaced, reducing maintenance costs and time.

[0058] During installation, first, a vertically extending mounting slot 9 is formed on the fixing base 1. A screw 10 is fixedly connected to the swivel eye 2. During installation, one end of the screw 10 is inserted through the corresponding mounting slot 9. The position of the screw 10 in the mounting slot 9 can then be adjusted by rotating the spacer nut 11, thereby adjusting the height of the swivel eye 2.

[0059] To adjust the height of the swivel eye 2, loosen the spacer nut 11 to allow the screw 10 to move up and down within the mounting slot 9. After moving the screw 10 to the desired position, tighten the spacer nut 11. During tightening, the spacer nut 11 exerts pressure on the mounting base 1, securing it tightly to the screw 10 and preventing it from loosening due to vibration or other factors during use, ensuring that the height of the swivel eye 2 remains at the set value.

[0060] After the height of the rotating eye 2 is determined, a pulley block 3 is suspended from it, connecting components such as the main hook 4, branch hook 5, weight 6, and arresting cable 7. During the aircraft's landing roll, the tail hook 8 engages the arresting cable 7, and the pulley block 3 and associated ropes drag the weight 6, thereby arresting and decelerating the aircraft. Throughout this process, accurate adjustment and stable maintenance of the height of the rotating eye 2 are crucial for the proper operation of the arresting mechanism.

[0061] The third embodiment adds the following technical features based on the second embodiment:

[0062] The fixing base 1 is fixedly connected to the runway surface via ground spikes 12 .

[0063] By securing the mounting base 1 to the runway surface using ground spikes 12, the mounting base 1 can be ensured to remain stable when subjected to the strong pulling force generated by the aircraft's landing run, thereby ensuring the reliability and safety of the entire arresting mechanism. This fixing method using ground spikes 12 has a simple structure and, compared to some complex fixing devices, has lower manufacturing and installation costs, making it easier to apply and promote on a large scale. The installation operation of ground spikes 12 is relatively simple, does not require complex construction equipment and techniques, and can complete the installation of the mounting base 1 in a relatively short time, thereby improving construction efficiency.

[0064] After the installation position of the fixing base 1 is determined on the runway surface, the ground spikes 12 are passed through the corresponding connection parts of the fixing base 1, and then the ground spikes 12 are driven into the runway surface. After the ground spikes 12 enter the runway surface, the friction and bite force with the runway material (such as concrete, asphalt, etc.) firmly fix the fixing base 1 on the runway.

[0065] When the aircraft is rolling for landing, the arresting mechanism begins to operate. Components such as the pulley block 3 and the arresting cable 7 are subject to tension from the aircraft. As the supporting foundation for the entire arresting mechanism, the fixed base 1 is subjected to the corresponding tension. Because the ground spikes 12 firmly secure the fixed base 1 to the runway surface, the runway can provide a reaction force to the fixed base 1 through the ground spikes 12, thereby ensuring that the fixed base 1 remains stable under stress, ensuring that the entire arresting mechanism can function properly and arrest the landing aircraft.

[0066] The fourth embodiment adds the following technical features on the basis of the third embodiment:

[0067] It also includes support balls 13, which are evenly spaced and fixedly connected to the arresting cable 7. The support balls 13 are used to support the arresting cable 7 so that there is a distance between the arresting cable 7 and the runway ground.

[0068] The support balls 13 are evenly spaced and fixed on the arresting cables 7, which can keep a certain distance between the arresting cables 7 and the runway surface. This helps the aircraft tail hook to accurately hook the arresting cables 7 during landing and prevents the arresting cables 7 from being worn by contact with the ground or being affected by ground debris.

[0069] The support balls 13 can distribute the tension borne by the arresting cable 7 more evenly to each supporting point, reducing the risk of the arresting cable 7 breaking due to excessive force at a local position, thereby improving the service life of the arresting cable 7 and the reliability of the entire arresting mechanism.

[0070] Because the support ball 13 keeps the arresting cable 7 at the appropriate height, the aircraft will be arrested more smoothly after hooking the arresting cable 7. The arresting cable 7 does not generate additional friction or resistance changes due to contact with the ground, ensuring the stability and predictability of the aircraft's landing and rolling arrest.

[0071] After the arresting cables 7 are installed, support balls 13 are evenly spaced and fixed to the arresting cables 7. The support balls 13 can be connected to the arresting cables 7 by clamping, bonding, or other reliable connection methods. Each support ball 13 can provide a certain amount of support force to keep the arresting cables 7 off the runway ground.

[0072] When the aircraft descends and rolls, with the tail hook hooked onto arresting cable 7, the cable 7 begins to bear the tension from the aircraft. Support balls 13 play a key role in this process. They maintain the arresting cable 7 at a certain height, ensuring that the tension can be transmitted to weight 6 through the arresting cable 7, pulley block 3, and related connecting components, thereby arresting and decelerating the aircraft.

[0073] Regularly check the support balls 13 to ensure they are securely attached to the arresting cables 7 and are free of damage or wear. If any problems are found with the support balls 13, replace or repair them promptly to ensure the arresting cables 7 are always at the proper height and maintain the normal operation of the entire arresting mechanism.

[0074] The fifth embodiment adds the following technical features based on the fourth embodiment:

[0075] The weight 6 is fixedly connected to the fish hook rope support rope 5 through a lock buckle.

[0076] The weight 6 is connected to the fish hook support rope 5 via a locking buckle. The buckle is designed to securely lock the fish hook support rope 5, preventing it from loosening during use. During installation, the fish hook support rope 5 is passed through the corresponding part of the buckle and then the buckle is closed to ensure that the weight 6 is tightly connected to the fish hook support rope 5.

[0077] When the aircraft lands and rolls, and pulley block 3 begins operating, the tension of the main hook rope 4 is transmitted through pulley block 3 to the hook rope branch rope 5, which in turn acts on the weight 6. Since the weight 6 is securely connected to the hook rope branch rope 5 by the lock, it moves on the runway under the action of the tension, generating friction with the runway. This friction is the key force to achieve the aircraft's arresting and deceleration.

[0078] The pulley block 3 is suspended on the rotating lifting ring 2 through a D-shaped steel lock.

[0079] During installation, connect one end of the D-shaped steel lock to the pulley block 3 and the other end to the swivel ring 2. The structural design of the D-shaped steel lock enables it to withstand large tensile forces, and its shape and size are adapted to the pulley block 3 and the swivel ring 2 to ensure the tightness and reliability of the connection.

[0080] When the aircraft lands and rolls and hooks the arresting cable 7, the arresting cable 7 pulls the attached main hook 4, which changes the direction and magnitude of the force through the pulley block 3. The pulley block 3 is suspended from the rotating eye 2 via a D-shaped steel lock. The rotating eye 2 is fixed to the fixed base 1 on both sides of the runway. In this way, the tension exerted by the pulley block 3 can be transmitted to the rotating eye 2 and the fixed base 1 through the D-shaped steel lock, ensuring the stability of the entire mechanism.

[0081] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An aircraft landing and rolling arresting mechanism, characterized in that: include: A fixing seat (1), wherein at least two fixing seats (1) are provided and symmetrically fixedly arranged on both sides of the runway; the fixing seat (1) is fixedly connected to the runway surface via ground nails (12); A rotating lifting ring (2), wherein the rotating lifting ring (2) is adjustable and detachably mounted on the fixing seat (1); The fixing seat (1) is provided with a mounting groove (9) extending vertically, and a screw rod (10) is fixedly connected to the rotating ring (2), one end of the screw rod (10) passes through the mounting groove (9) adapted thereto, and a washer nut (11) is threadedly connected to the screw rod (10); A pulley block (3), the pulley blocks (3) on both sides are suspended on corresponding rotating rings (2), a main fish hook rope (4) is suspended on the movable pulley of the pulley block (3), the main fish hook rope (4) is fixedly connected to a fish hook rope branch rope (5), and the pulley block (3) is suspended on the rotating ring (2) through a D-shaped steel lock; A weight (6), the weight (6) being fixedly connected to the fish hook rope support rope (5), and the weight (6) being located on the runway surface; the weight (6) being fixedly connected to the fish hook rope support rope (5) via a locking buckle; An arresting cable (7), the arresting cable (7) being located between the pulley blocks (3) on both sides, the arresting cable (7) being fixedly connected to an end of the main rope (4) of the fishhook rope away from one end of the fishhook rope branch rope (5), and the arresting cable (7) being used for arresting the aircraft during landing and rolling; A tail hook (8), wherein the tail hook (8) is movably connected to the lower part of the belly of the aircraft, and when the aircraft is landing and rolling, the position of the tail hook (8) is adjusted so that the tail hook (8) hooks the arresting cable (7); Also includes: A tail hook connecting rod (14), one end of which is rotatably connected to the belly of the aircraft; A pneumatic telescopic rod (15), wherein the fixed end of the pneumatic telescopic rod (15) is rotatably connected to the belly of the aircraft, and the piston rod of the pneumatic telescopic rod (15) is rotatably connected to the middle position of the tail hook connecting rod (14); Tail hook connecting rod 2 (16), one end of the tail hook connecting rod 2 (16) is fixedly connected to the tail hook connecting rod 1 (14), and the other end of the tail hook connecting rod 2 (16) is detachably connected to the tail hook (8).

2. The aircraft landing and rolling arresting mechanism according to claim 1, characterized in that: It also includes support balls (13), which are evenly spaced and fixedly connected to the arresting cable (7). The support balls (13) are used to support the arresting cable (7) so that a distance exists between the arresting cable (7) and the runway ground.

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