A high strength, cushioned, vertical take-off and landing platform

Abstract

The utility model discloses a kind of vertical take-off and landing platforms with high-strength buffering, including platform body, support structure and buffer damping system. Belong to the technical field of aircraft take-off and landing equipment. Platform body adopts honeycomb sandwich structure, upper and lower surface is high-strength alloy steel plate, and middle is regular hexagon honeycomb aluminum matrix composite core body;The column of support structure is hollow tubular, bottom is equipped with adjustable height pedestal, and form triangular stable structure by transverse connecting beam and oblique support beam;Platform body lower surface double-layer steel plate is equipped with staggered distribution shock absorber spring and hydraulic damper between. In addition, column pipe wall is made of fiber reinforced resin matrix composite material and built-in spiral reinforcing rib, and platform edge is equipped with carbon fiber reinforced plastic and memory alloy wire woven crash barrier. The utility model discloses vertical take-off and landing platform realizes high-strength, lightweight, excellent shock absorption and environmental adaptability, and wide application range.

Description

Technical Field

[0001] This utility model relates to the field of aircraft take-off and landing equipment technology, specifically to a high-strength vertical take-off and landing platform with buffer. Background Technology

[0002] With the rapid development of the aviation industry, the performance requirements for aircraft takeoff and landing platforms are becoming increasingly stringent. Existing aircraft takeoff and landing platforms have certain shortcomings in terms of strength, stability, and shock absorption. Traditional aircraft takeoff and landing platforms have simple structures, mainly using steel, resulting in significant weight and high construction and transportation costs. Furthermore, they are prone to significant deformation and vibration when subjected to the impact forces of aircraft takeoff and landing, affecting the safety and stability of aircraft takeoff and landing. At the same time, the collision avoidance and anti-skid performance of existing platforms needs improvement, making it difficult to meet the demands of modern aviation development. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention aims to provide a high-strength vertical take-off and landing platform with buffer to solve the problems of insufficient strength, poor stability, poor shock absorption performance and weak anti-collision and anti-slip capabilities of the existing aircraft take-off and landing platforms.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-strength, buffered vertical take-off and landing platform includes a platform body, a support structure, and a buffer and shock absorption system. The platform body adopts a honeycomb sandwich structure, with the upper and lower surfaces of the platform body being high-strength alloy steel plates and the middle sandwich being a core of regular hexagonal honeycomb aluminum-based composite material. The support structure includes multiple columns, each with a hollow tubular structure, and an adjustable-height base at the bottom of each column. The high-strength alloy steel plate on the lower surface of the platform body has a double-layer structure, fixedly connected in the middle by the buffer and shock absorption system. The buffer and shock absorption system includes multiple damping springs and hydraulic dampers, which are staggered.

[0006] Further configuration: The pipe wall of the column is made of fiber-reinforced resin-based composite material, and the inside of the pipe wall is integrally formed with spirally wound reinforcing ribs.

[0007] Further configuration: The base includes a base and an electric actuator. The electric actuator is vertically fixed on the base, and the column is fixed on the electric actuator. The electric actuator is used to automatically adjust the height of the column to keep the platform level.

[0008] Further configuration: The support structure also includes a transverse connecting beam and an inclined support beam. The transverse connecting beam connects the middle of adjacent columns. One end of the inclined support beam is fixedly connected to the bottom of the platform body, and the other end is fixedly connected to the connection between the transverse connecting beam and the column, forming multiple triangular stable structures.

[0009] Further configuration: The hydraulic damper is internally equipped with magnetorheological fluid, and the magnetic field strength of the magnetorheological fluid can be adjusted by an external control circuit.

[0010] Further configuration: The platform body is equipped with anti-collision guardrails at its edges. The anti-collision guardrails are made of a composite material woven from carbon fiber reinforced plastic and shape memory alloy wires, with the shape memory alloy wires distributed in a mesh pattern inside the carbon fiber reinforced plastic.

[0011] Further configuration: The upper surface of the platform body is provided with an anti-slip coating, which is composed of nano-sized silica particles and epoxy resin.

[0012] The beneficial effects of this utility model are as follows: by adopting a platform body with a honeycomb sandwich structure, columns made of fiber-reinforced resin matrix composite material, and a staggered buffer and shock absorption system, the strength, stability and shock absorption performance of the aircraft take-off and landing platform are effectively improved, while the anti-collision and anti-slip capabilities of the platform are enhanced, thus meeting the high-performance requirements of modern aviation development for aircraft take-off and landing platforms. Attached Figure Description

[0013] Figure 1 This is a diagram of the overall structure.

[0014] Figure 2 This is a cross-sectional structural diagram of the platform body;

[0015] Figure 3 Front view of the shock absorption system;

[0016] Figure 4 This is a diagram of the column structure.

[0017] In the diagram: 1. Platform body; 11. High-strength alloy steel plate; 12. Core; 2. Column; 21. Reinforcing rib; 3. Base; 31. Base; 32. Threaded column; 33. Adjusting nut; 4. Shock-absorbing spring; 5. Hydraulic damper; 6. Horizontal connecting beam; 7. Diagonal support beam; 8. Crash guardrail. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can fully understand and implement them.

[0019] like Figures 1 to 4 As shown,

[0020] A high-strength, buffered vertical take-off and landing platform includes a platform body 1, a support structure, and a buffer and shock absorption system.

[0021] Wherein: the platform body 1 adopts a honeycomb sandwich structure, the upper and lower surfaces of the platform body 1 are high-strength alloy steel plates 11, and the middle sandwich is a core 12 of regular hexagonal honeycomb aluminum-based composite material; the high-strength alloy steel plate 11 on the lower surface of the platform body 1 has a double-layer structure, which is fixedly connected in the middle by the buffer and shock absorption system. The buffer and shock absorption system includes multiple shock absorption springs 4 and hydraulic dampers 5, and the shock absorption springs 4 and the hydraulic dampers 5 are distributed alternately. The platform body 1 adopts a structural design of double-layer high-strength alloy steel plate 11 and sandwich core 12, which achieves a combination of high strength and lightweight. The high-strength alloy steel plate 11 provides surface impact resistance and wear resistance. The regular hexagonal honeycomb structure utilizes geometric stability to achieve maximum bending stiffness with minimal material usage. The aluminum-based composite core 12 combines lightweight and high toughness, which greatly reduces the weight of the platform body 1 compared to traditional steel structures, while increasing tensile strength. In addition, the porous structure of the honeycomb core 12 can disperse local stress concentration and reduce the generation of fatigue cracks during long-term use, making it suitable for load cycle scenarios of frequent take-off and landing of aircraft. The damping system achieves excellent damping effect through a composite damping mechanism of damping spring 4 and hydraulic damper 5. The damping spring 4 provides initial elastic buffering to absorb high-frequency impact energy during aircraft takeoff and landing. The hydraulic damper 5 consumes low-frequency vibration energy. The staggered distribution of the two greatly improves the damping effect and reduces the impact of platform body 1 vibration on the aircraft structure. In addition, the staggered damping elements form a grid-like support to avoid local load concentration and improve the overall anti-overturning capability of the platform.

[0022] The supporting structure includes multiple columns 2, each with a hollow tubular structure. Each column 2 has an adjustable-height base 3 at its bottom. The tube wall of each column 2 is made of fiber-reinforced resin-based composite material, and the interior of the tube wall is integrally formed with spirally wound reinforcing ribs 21. The hollow tubular columns 2 reduce structural weight while maintaining bending strength, increasing material utilization by approximately 20%. The tubular structure allows for pre-installed pipeline channels, facilitating future maintenance and functional expansion. The integrally formed spiral reinforcing ribs 21 act like a "steel skeleton," enhancing the buckling resistance of the column 2's tube wall and preventing local instability under axial loads. Especially when the platform is subjected to eccentric loads, the lateral deformation of the column 2 can be reduced by 60%.

[0023] The base 3 includes a base 31 and an electronically controlled actuator. The electronically controlled actuator is vertically fixed to the base 31, and the column 2 is fixed to the electronically controlled actuator. The electronically controlled actuator is used to automatically adjust the height of the column 2 to keep the platform level. In this embodiment, the electronically controlled actuator includes a threaded post 32 and an adjusting nut 33. The threaded post 32 is vertically fixed to the base 31, and the column 2 is sleeved on the threaded post 32. The adjusting nut 33 is disposed on the column 2 and threadedly connected to the threaded post 32. By cooperating with the threaded post 32, the height of the column 2 can be finely adjusted to adapt to different ground flatness (such as the uneven terrain of a field airport), reduce the levelness error of the platform body 1, and avoid tire wear or taxiing deviation caused by platform tilt during aircraft takeoff and landing.

[0024] Further configuration: The support structure also includes a transverse connecting beam 6 and an oblique support beam 7. The transverse connecting beam 6 connects the middle of adjacent columns 2. One end of the oblique support beam 7 is fixedly connected to the bottom of the platform body 1, and the other end is fixedly connected to the connection between the transverse connecting beam 6 and the column 2, forming multiple triangular stable structures. Utilizing the geometric invariance of triangles, the overall support structure's anti-roll stiffness is improved, enabling it to withstand the horizontal impact force during aircraft takeoff and landing. The triangular structure distributes concentrated loads across multiple components, preventing overloading of a single column 2. For example, when the aircraft takes off and lands with an off-center load, the load can be transferred to adjacent columns 2 through the oblique support beam 7, reducing the force difference between each column 2.

[0025] Further configuration: The hydraulic damper 5 is internally equipped with magnetorheological fluid, and the magnetic field strength of the magnetorheological fluid can be adjusted via an external control circuit. Since the magnetorheological fluid exhibits millisecond-level response under the influence of a magnetic field, the external control circuit monitors aircraft takeoff and landing loads (such as weight and speed) in real time, dynamically adjusting the magnetic field strength to achieve adaptive optimization of the damping force. Furthermore, the magnetorheological fluid has no mechanically worn parts, extending the maintenance cycle to over 5 years compared to traditional hydraulic oil dampers, thus reducing operating costs.

[0026] Further details: The platform body 1 is equipped with a crash barrier 8 along its edge. This crash barrier 8 is made of a composite material woven from carbon fiber reinforced plastic and shape memory alloy wires, with the shape memory alloy wires distributed in a mesh pattern within the carbon fiber reinforced plastic. The tensile strength of carbon fiber reinforced plastic is four times higher than that of steel, reducing the barrier's weight by 60%. The mesh structure of the shape memory alloy wires (such as nickel-titanium alloy) gives the barrier a "self-recovery" capability; when subjected to impacts such as aircraft scraping, small deformations can automatically return to their original shape, eliminating the need for manual repair and reducing downtime for maintenance. Furthermore, both carbon fiber and shape memory alloy possess excellent resistance to high and low temperatures and ultraviolet radiation, maintaining structural stability even under extreme climatic conditions.

[0027] Further details: The upper surface of the platform body 1 is provided with an anti-slip coating, which is composed of nano-sized silica particles and epoxy resin. By uniformly dispersing the nano-silica particles in the epoxy resin, a micron-level rough surface is formed, significantly improving the effect compared to traditional anti-slip coatings. This effectively prevents tire slippage during aircraft takeoff and landing, shortening braking distance. Furthermore, the epoxy resin, as the matrix, provides excellent adhesion and wear resistance. When the coating thickness is 1-2 mm, the service life can reach more than 10 years; it can be directly recoated after localized wear, making maintenance convenient.

[0028] In summary, this embodiment achieves a high-strength, lightweight, highly shock-absorbing, and environmentally adaptable aircraft take-off and landing platform through structural optimization and material innovation, with a wide range of applications and good results.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength, buffered vertical take-off and landing platform, characterized in that, The system includes a platform body (1), a support structure, and a shock absorption system. The platform body (1) adopts a honeycomb sandwich structure. The upper and lower surfaces of the platform body (1) are high-strength alloy steel plates (11), and the middle sandwich is a core (12) of a regular hexagonal honeycomb aluminum-based composite material. The support structure includes multiple columns (2). The columns (2) adopt a hollow tubular structure, and the bottom of the columns (2) is provided with an adjustable height base (3). The high-strength alloy steel plate (11) on the lower surface of the platform body (1) is a double-layer structure, which is fixedly connected in the middle by the shock absorption system. The shock absorption system includes multiple damping springs (4) and hydraulic dampers (5). The damping springs (4) and the hydraulic dampers (5) are staggered.

2. The high-strength vertical take-off and landing platform with buffer as described in claim 1, characterized in that, The wall of the column (2) is made of fiber-reinforced resin-based composite material, and the inside of the wall is integrally formed with spirally wound reinforcing ribs (21).

3. A high-strength vertical take-off and landing platform with buffer as described in claim 2, characterized in that, The base (3) includes a base (31) and an electric actuator. The electric actuator is vertically fixed on the base (31), and the column (2) is fixed on the electric actuator. The electric actuator is used to automatically adjust the height of the column (2) to keep the platform level.

4. A high-strength vertical take-off and landing platform with buffer as described in claim 3, characterized in that, The support structure also includes a transverse connecting beam (6) and an inclined support beam (7). The transverse connecting beam (6) connects the middle of the adjacent columns (2). One end of the inclined support beam (7) is fixedly connected to the bottom of the platform body (1), and the other end is fixedly connected to the connection between the transverse connecting beam (6) and the column (2), forming multiple triangular stable structures.

5. A high-strength vertical take-off and landing platform with buffer as described in claim 4, characterized in that, The hydraulic damper (5) is equipped with a magnetorheological fluid, and the magnetic field strength of the magnetorheological fluid can be adjusted by an external control circuit.

6. A high-strength vertical take-off and landing platform with buffer as described in claim 5, characterized in that, The platform body (1) is provided with a crash barrier (8) on its edge. The crash barrier (8) is made of a composite material woven from carbon fiber reinforced plastic and shape memory alloy wire. The shape memory alloy wire is distributed in a mesh pattern inside the carbon fiber reinforced plastic.

7. A high-strength, buffered vertical take-off and landing platform according to any one of claims 1 to 6, characterized in that, The upper surface of the platform body (1) is provided with an anti-slip coating, which is made of nano-sized silica particles and epoxy resin.

Images