Aircraft landing running blocking mechanism

Abstract

The invention discloses an aircraft landing and running blocking mechanism, and relates to the technical field of aircraft blocking, and the aircraft landing and running blocking mechanism is characterized by comprising at least two fixing seats which are symmetrically and fixedly arranged on the two sides of a runway; the rotary lifting ring is adjustably and detachably mounted on the fixed seat; the pulley blocks on the two sides are hung on the corresponding rotating hanging rings, a main fish buckle rope is hung on movable pulleys of the pulley blocks, and the main fish buckle rope is fixedly connected with a branch fish buckle rope; the heavy object is fixedly connected to the fish buckle rope branch rope and located on the surface of the runway. The blocking cable is located between the pulley blocks on the two sides and fixedly connected to the end, away from one end of the fish buckle rope branch rope, of the fish buckle rope main rope, and the effect is that reliable blocking force can be provided when the aircraft lands and slides, and it is ensured that the aircraft can be safely and rapidly decelerated and stopped.

Description

Technical Field

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

[0002] In the aviation field, aircraft need to safely decelerate to a stop within a short runway distance when landing. Traditional aircraft braking systems mainly rely on wheel brakes, however, this braking method has certain limitations. As the weight and landing speed of the aircraft continue to increase, the wheel brake system needs to withstand huge friction, which will cause the brake disc and brake pads to wear more, increasing maintenance costs and replacement frequency. At the same time, in some special circumstances, such as when the runway is slippery or the brake system fails, relying solely on wheel brakes may not guarantee the safe landing of the aircraft. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide an aircraft landing roll arresting mechanism.

[0004] To achieve the above object, the present invention provides the following technical solutions: An aircraft landing roll arresting mechanism, comprising: The fixing seats are at least two and are symmetrically fixed on both sides of the runway.

[0005] A rotating lifting ring is adjustable and detachably mounted on a fixing seat.

[0006] The pulley blocks on both sides are suspended on corresponding rotating lifting rings, and a main fish hook rope is suspended on the movable pulley of the pulley block, and the main fish hook rope is fixedly connected with a fish hook rope branch rope.

[0007] A weight is fixedly connected to the fish hook rope support rope, and the weight is located on the runway surface.

[0008] 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 rope of the fishhook rope away from one end of the fishhook rope branch rope. The arresting cable is used for landing and rolling arrest of the aircraft.

[0009] The tail hook is movably connected under 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.

[0010] Preferably, a mounting groove extending vertically is provided on the fixing seat, a screw rod is fixedly connected to the rotating hanging ring, one end of the screw rod passes through the mounting groove adapted thereto, and a gasket nut is threadedly connected to the screw rod.

[0011] Preferably, the fixing seat is fixedly connected to the runway surface via ground nails.

[0012] 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.

[0013] Preferably, the weight is fixedly connected to the fish hook rope support rope through a lock buckle.

[0014] Preferably, the pulley block is suspended on the rotating lifting ring through a D-shaped steel lock.

[0015] Preferably, it also includes: A tail hook connecting rod 1, one end of which is rotatably connected to the belly of the aircraft.

[0016] 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.

[0017] A tail hook connecting rod 2, one end of which is fixedly connected to the tail hook connecting rod 1, and the other end of which is detachably connected to the tail hook.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The aircraft landing and rolling arresting mechanism of the present invention can provide reliable arresting force when the aircraft is landing and rolling through the coordinated work of components such as a fixed seat, a rotating lifting ring, a pulley block, a fish hook, a weight, an arresting cable and a tail hook, so as to ensure that the aircraft can safely and quickly decelerate and stop. The rotating lifting ring can be adjusted and detachably installed on the fixed seat. This design can flexibly adjust the height and position of the pulley block and the arresting cable according to different aircraft types and runway conditions, thereby improving the versatility and adaptability of the arresting mechanism. By using components such as a pulley block and a fish hook, the kinetic energy of the aircraft's rolling is converted into the movement of the weight, and the arresting is achieved through the friction between the weight and the ground. This method can reasonably utilize the principles of mechanics, realize efficient force transmission and energy conversion, and reduce the dependence on the aircraft's own braking system. The tail hook can adjust its position as needed to hook the arresting cable when the aircraft is landing and rolling, thereby ensuring that the arresting process proceeds smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of an unarrested state of an aircraft landing roll arresting mechanism is provided for the present invention; Figure 2 A schematic diagram of an arrested state of an aircraft landing roll arresting mechanism is provided for the present invention; Figure 3 The present invention provides a connection diagram of a fixed seat and a rotating lifting ring in an aircraft landing and rolling arresting mechanism; Figure 4The present invention provides a schematic diagram of the connection between a weight and a pulley block in an aircraft landing and rolling arresting mechanism; Figure 5 for Figure 4 A partial enlarged view of the middle A; Figure 6 The present invention provides a connection schematic diagram of a tail hook in an aircraft landing roll arresting mechanism.

[0020] 1. Fixed seat; 2. Rotating lifting ring; 3. Pulley block; 4. Main rope of fish hook rope; 5. Support rope of fish hook rope; 6. Weight; 7. Arresting rope; 8. Tail hook; 9. Mounting groove; 10. Screw; 11. Washer nut; 12. Ground nail; 13. Support ball; 14. Tail hook connecting rod one; 15. Pneumatic telescopic rod; 16. Tail hook connecting rod two. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 6 shown.

[0022] Embodiment 1 further describes an aircraft landing roll arresting mechanism proposed by the present invention.

[0023] An aircraft landing roll arresting mechanism, comprising: The fixing seat 1 is provided with at least two fixing seats 1 and is symmetrically fixed on both sides of the runway.

[0024] The rotating lifting ring 2 is adjustable and detachably mounted on the fixing seat 1.

[0025] The pulley blocks 3 on both sides are suspended on the corresponding rotating lifting rings 2, and the main rope 4 of the fish hook rope is suspended on the movable pulley of the pulley block 3, and the main rope 4 of the fish hook rope is fixedly connected with the branch rope 5 of the fish hook rope.

[0026] A weight 6 is fixedly connected to the fish hook rope support rope 5, and the weight 6 is located on the surface of the runway.

[0027] 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 arrest of the aircraft.

[0028] 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.

[0029] 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 a retracted position in the initial state.

[0030] 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.

[0031] 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 thereto to move. The main rope 4 of the fish hook rope changes the direction and magnitude of the force through the pulley block 3. The pulley block 3 transmits the pulling force of the main rope 4 of the fish hook rope to the branch rope 5 of the fish hook rope, thereby dragging the weight 6 to move on the runway surface. The friction force between the weight 6 and the runway surface is the arresting force on the taxiing of the aircraft, thereby gradually slowing down the aircraft until it stops.

[0032] 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.

[0033] Also includes: A tail hook connecting rod 14, one end of which is rotatably connected to the belly of the aircraft.

[0034] The pneumatic telescopic rod 15 has a fixed end which 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.

[0035] Tail hook connecting rod 2 16, one end of which is fixedly connected to tail hook connecting rod 1 14, and the other end of which is detachably connected to tail hook 8, and tail hook 8 can be installed on tail hook connecting rod 2 16 by means of bolts or other disassembly methods.

[0036] The position of the tail hook 8 can be accurately controlled by the combination of the tail hook link 1 14, the pneumatic telescopic rod 15 and the tail hook link 2 16. The pneumatic telescopic rod 15 can be extended and retracted as needed to drive the tail hook link 1 14 and the tail hook link 2 16 to move, so that the tail hook 8 can accurately hook the arresting cable 7 when the aircraft is landing and rolling, thereby improving the success rate of the arresting operation.

[0037] The tail hook connecting rod 1 14 and the tail hook connecting rod 2 16 are respectively connected by rotation and detachable connection, which ensures the connection strength and is convenient for installation, disassembly and maintenance.

[0038] When the aircraft is not landing, the pneumatic telescopic rod 15 is in an initial state, and the tail hook 8 is usually in a retracted position.

[0039] When the aircraft is ready to land and roll, the pneumatic telescopic rod 15 starts to work. The piston rod of the pneumatic telescopic rod 15 extends, pushing the tail hook link 1 14 to rotate around its connection point with the aircraft belly. Since the tail hook link 2 16 is connected to the tail hook link 1 14 and the other end is connected to the tail hook 8, the rotation of the tail hook link 1 14 will drive the tail hook link 2 16 to move, thereby lowering the tail hook 8 from the stowed position to a suitable height, ready to hook the arresting cable 7.

[0040] When the aircraft is taxiing on the runway and the tail hook 8 hooks the arresting cable 7, the aircraft's taxiing kinetic energy will be transferred to the pulley block 3 and other components through the arresting cable 7, thereby dragging the weight 6 to generate arresting resistance. In this process, the tail hook 8 and its connecting rod mechanism need to withstand a large pulling force. The structure composed of the tail hook connecting rod 1 14, the pneumatic telescopic rod 15 and the tail hook connecting rod 2 16 can stably maintain the connection between the tail hook 8 and the arresting cable 7, ensuring that the arresting process proceeds smoothly.

[0041] After the aircraft stops, the piston rod of the pneumatic telescopic rod 15 retracts, pulling the tail hook connecting rod 1 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.

[0042] Embodiment 2 adds the following technical features based on Embodiment 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 lifting 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.

[0043] By providing a vertically extending mounting groove 9 on the fixing seat 1 and connecting them with a screw rod 10 and a washer nut 11, the height of the rotating lifting ring 2 can be flexibly adjusted. This design can conveniently adjust the height of the arresting cable 7 according to the landing requirements of different aircraft and runway conditions, thereby improving the adaptability of the arresting mechanism.

[0044] The connection between the screw rod 10 and the washer nut 11 provides a reliable fixing effect. The washer nut 11 can prevent the screw rod 10 from loosening, ensure the stability of the rotating ring 2 during use, thereby ensuring that the entire arresting mechanism can work normally when the aircraft lands and rolls, and reduce the risk of failure caused by structural instability.

[0045] This connection structure is relatively simple and easy to install and disassemble. During the installation process, the rotating eye 2 can be easily installed on the fixing seat 1, and accurate installation can be achieved by adjusting the position of the screw 10. During maintenance, the relevant parts can also be easily inspected and replaced, reducing maintenance costs and time.

[0046] During the installation process, first, there is a vertically extending installation groove 9 on the fixing base 1. A screw rod 10 is fixedly connected to the rotating lifting ring 2. During installation, one end of the screw rod 10 is passed through the mounting groove 9 adapted thereto. Then, by rotating the washer nut 11, the position of the screw rod 10 in the mounting groove 9 can be adjusted, thereby achieving height adjustment of the rotating lifting ring 2.

[0047] When the height of the rotating lifting ring 2 needs to be adjusted, loosen the spacer nut 11 to allow the screw rod 10 to move up and down in the installation groove 9. After the screw rod 10 is moved to a suitable position, tighten the spacer nut 11. During the tightening process, the spacer nut 11 will exert pressure on the fixing seat 1, making it tightly connected with the screw rod 10, preventing the screw rod 10 from loosening due to vibration and other reasons during use, and ensuring that the height of the rotating lifting ring 2 is maintained at the set value.

[0048] After the height of the rotating ring 2 is determined, the pulley block 3 is suspended on the rotating ring 2, and then connected to the main rope 4 of the fish hook rope, the branch rope 5 of the fish hook rope, the weight 6 and the arresting cable 7 and other components. When the aircraft is landing and rolling, the tail hook 8 hooks the arresting cable 7, and the weight 6 is dragged by the pulley block 3 and related ropes to achieve the arresting and deceleration of the aircraft. In the whole process, the accurate adjustment and stable maintenance of the height of the rotating ring 2 are very important for the normal operation of the arresting mechanism.

[0049] Embodiment 3 adds the following technical features based on Embodiment 2: The fixing base 1 is fixedly connected to the runway surface via ground nails 12 .

[0050] By fixing the fixing base 1 to the runway surface through the ground nails 12, it can be ensured that the fixing base 1 remains stable when subjected to the strong pulling force generated by the landing and taxiing of the aircraft, thereby ensuring the reliability and safety of the entire arresting mechanism. This fixing method uses ground nails 12, which have a simple structure. Compared with some complex fixing devices, its manufacturing and installation costs are lower, which is convenient for large-scale application and promotion. The installation operation of the ground nails 12 is relatively simple, does not require complex construction equipment and technology, and can complete the installation of the fixing base 1 in a relatively short time, thereby improving construction efficiency.

[0051] After the installation position of the fixing base 1 is determined on the runway surface, the ground nails 12 are passed through the corresponding connection parts of the fixing base 1, and then the ground nails 12 are driven into the runway surface. After the ground nails 12 enter the runway surface, the fixing base 1 is firmly fixed on the runway through the friction and bite force with the runway material (such as concrete, asphalt, etc.).

[0052] When the aircraft is landing and rolling, the arresting mechanism starts to work. The pulley block 3, the arresting cable 7 and other components will be subjected to the tension from the aircraft. The fixed seat 1, as the supporting base of the entire arresting mechanism, will bear the corresponding tension. Since the ground nails 12 firmly fix the fixed seat 1 to the runway surface, the runway can provide a reaction force to the fixed seat 1 through the ground nails 12, thereby ensuring that the fixed seat 1 remains stable under stress, ensuring that the entire arresting mechanism can function normally and achieve the arrest of the landing and rolling aircraft.

[0053] Embodiment 4 adds the following technical features based on Embodiment 3: It also includes support balls 13, which are evenly spaced and fixedly connected to the arresting cables 7. The support balls 13 are used to support the arresting cables 7 so that there is a distance between the arresting cables 7 and the runway ground.

[0054] 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 ground, so as to help the tail hook of the aircraft to accurately hook the arresting cables 7 during landing and avoid the arresting cables 7 being worn due to contact with the ground or being affected by ground debris in its normal operation.

[0055] The supporting balls 13 can distribute the tension exerted on 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 increasing the service life of the arresting cable 7 and the reliability of the entire arresting mechanism.

[0056] Since the support ball 13 keeps the arresting cable 7 at a suitable height, the arresting process of the aircraft will be smoother after hooking the arresting cable 7. The arresting cable 7 will not generate additional friction or resistance changes due to contact with the ground, which ensures the stability and predictability of the aircraft landing and rolling arrest.

[0057] After the arresting cable 7 is installed, the support balls 13 are evenly spaced and fixedly connected to the arresting cable 7. The support balls 13 can be connected to the arresting cable 7 by clamping, bonding or other reliable connection methods. Each support ball 13 can provide a certain supporting force to make the arresting cable 7 leave the runway ground.

[0058] When the aircraft lands and rolls and the tail hook hooks the arresting cable 7, the arresting cable 7 begins to bear the tension from the aircraft. The support balls 13 play a key role in this process. They keep the arresting cable 7 at a certain height, ensuring that the tension can be transmitted to the weight 6 through the arresting cable 7, the pulley block 3 and related connecting parts, thereby achieving the arrest and deceleration of the aircraft.

[0059] Check the support balls 13 regularly to ensure that they are firmly connected to the arresting cables 7 and are not damaged or worn. If any problem is found with the support balls 13, replace or repair them in time to ensure that the arresting cables 7 can always be kept at a suitable height and maintain the normal operation of the entire arresting mechanism.

[0060] Embodiment 5 adds the following technical features based on Embodiment 4: The weight 6 is fixedly connected to the fish hook rope support rope 5 through a lock buckle.

[0061] The weight 6 is connected to the fish buckle rope support rope 5 through the lock buckle. The design of the lock buckle can firmly lock the fish buckle rope support rope 5 to prevent it from loosening during use. During installation, the fish buckle rope support rope 5 is passed through the corresponding part of the lock buckle, and then the lock buckle is closed to ensure that the weight 6 is tightly connected to the fish buckle rope support rope 5.

[0062] When the aircraft lands and rolls, the pulley block 3 starts to work, and the tension of the main rope 4 of the hook rope is transmitted to the hook rope branch rope 5 through the pulley block 3, and then acts on the weight 6. Since the weight 6 is firmly connected to the hook rope branch rope 5 through the lock, it will move on the runway under the action of the tension, generating friction with the runway, and this friction is the key force to achieve the arrest and deceleration of the aircraft.

[0063] The pulley block 3 is suspended on the rotating lifting ring 2 through a D-shaped steel lock.

[0064] During installation, one end of the D-shaped steel lock is connected to the pulley block 3, and the other end is connected to the swivel ring 2. The structural design of the D-shaped steel lock enables it to withstand greater tension, and its shape and size are compatible with the pulley block 3 and the swivel ring 2 to ensure the tightness and reliability of the connection.

[0065] When the aircraft lands and rolls and hooks the arresting cable 7, the arresting cable 7 will pull the main rope 4 connected to it, and the main rope 4 will change the direction and magnitude of the force through the pulley block 3. The pulley block 3 is suspended on the rotating ring 2 through the D-shaped steel lock, and the rotating ring 2 is fixed on the fixed seat 1 on both sides of the runway. In this way, the tension borne by the pulley block 3 can be transmitted to the rotating ring 2 and the fixed seat 1 through the D-shaped steel lock, ensuring the stability of the entire mechanism.

[0066] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An aircraft landing roll arresting mechanism, characterized in that: include: A fixing seat (1), wherein at least two fixing seats (1) are provided and are symmetrically fixedly arranged on both sides of the runway; A rotating lifting ring (2), wherein the rotating lifting ring (2) is adjustable and detachably mounted on the fixing seat (1); A pulley block (3), the pulley blocks (3) on both sides are suspended on corresponding rotating lifting rings (2), a main rope of a fish hook rope (4) is suspended on the movable pulley of the pulley block (3), and the main rope of the fish hook rope (4) is fixedly connected to a branch rope of the fish hook rope (5); A weight (6), the weight (6) being fixedly connected to the fishhook rope support rope (5), and the weight (6) being located on the surface of the runway; 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 far away from one end of the fishhook rope branch rope (5), the arresting cable (7) being used for arresting the aircraft during landing and rolling; A tail hook (8) is movably connected to the lower part of the belly of the aircraft. When the aircraft is landing and taxiing, the position of the tail hook (8) is adjusted so that the tail hook (8) hooks the arresting cable (7).

2. The aircraft landing roll arresting mechanism according to claim 1, characterized in that: The fixing seat (1) is provided with a mounting groove (9) extending in the vertical direction, and the rotating lifting ring (2) is fixedly connected with a screw rod (10), 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).

3. The aircraft landing roll arresting mechanism according to claim 1, characterized in that: The fixing seat (1) is fixedly connected to the surface of the runway via ground nails (12).

4. The aircraft landing roll arresting mechanism according to claim 1, characterized in that: It also includes support balls (13), the support balls (13) being evenly spaced and fixedly connected to the arresting cable (7), and the support balls (13) being used to support the arresting cable (7) so that there is a distance between the arresting cable (7) and the runway ground.

5. The aircraft landing roll arresting mechanism according to claim 1, characterized in that: The weight (6) is fixedly connected to the fish hook rope support rope (5) via a lock buckle.

6. The aircraft landing roll arresting mechanism according to claim 1, characterized in that: The pulley block (3) is suspended on the rotating lifting ring (2) via a D-shaped steel lock.

7. The aircraft landing roll arresting mechanism according to claim 1, characterized in that: 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 1 (14); A second tail hook connecting rod (16), one end of which is fixedly connected to the first tail hook connecting rod (14), and the other end of which is detachably connected to the tail hook (8).

Images