A cross lever shock absorbing and energy recovering device for an airborne platform

Abstract

The application belongs to the technical field of unmanned aerial vehicle protection devices, and particularly relates to a cross-lever type damping and energy recovery device for an airborne platform, which comprises a top mounting plate, a damping assembly and a bottom mounting plate connected in sequence along a straight line, the damping assembly being used for damping protection of the airborne platform of the unmanned aerial vehicle, and further comprising: a cross-lever assembly slidingly arranged between the top mounting plate and the bottom mounting plate, the cross-lever assembly comprising a first cross lever and a second cross lever hingedly connected to each other; and a sliding friction power generation assembly embeddedly arranged in the bottom mounting plate, the sliding friction power generation assembly comprising a positive electrode output line, an upper electrode, an upper friction layer, a lower friction layer, a lower electrode, a negative electrode output line and a support bottom plate sequentially contacted in a vertical direction of the bottom mounting plate. The application realizes micro-vibration displacement amplification of the airborne platform in the aspect of unmanned aerial vehicle protection, increases the relative sliding distance of the friction interface, and simultaneously achieves broadband damping and vibration energy recovery.

Description

Technical Field

[0001] This invention belongs to the technical field of unmanned aerial vehicle (UAV) protection devices, specifically relating to a cross-lever type vibration reduction and energy recovery device for airborne platforms. Background Technology

[0002] With the rapid development of unmanned aerial vehicles (UAVs), low-altitude aircraft, and airborne precision equipment, airborne platforms are susceptible to the combined effects of engine vibration, propeller aerodynamic vibration, structural coupling vibration, and complex environmental excitation during flight. This leads to intensified platform vibration, which in turn affects the stability of photoelectric imaging, the accuracy of inertial measurement, and the service life of airborne equipment. Currently, linear vibration isolators or tuned mass dampers are widely used in engineering to protect and control the vibration of airborne platforms.

[0003] However, traditional linear vibration damping structures typically only exhibit good vibration damping performance near specific frequencies and have weak adaptability to complex broadband vibration environments. When the excitation frequency changes, their vibration damping and protection effect decreases significantly, making it difficult to meet the broadband vibration damping and protection requirements under complex flight conditions.

[0004] To address the aforementioned challenges in broadband vibration reduction and protection, triboelectric nanogenerator technology, which has emerged in recent years, offers a novel approach. It utilizes relative slip to convert mechanical energy into electrical energy, demonstrating potential in the field of vibration energy recovery. However, when applied to airborne micro-vibration environments, the small structural amplitude and limited relative slip distance at the friction interface result in low triboelectric power output performance, making stable and effective energy recovery difficult.

[0005] Furthermore, most existing vibration reduction and power generation devices adopt independent structural designs, lacking a synergistic coupling mechanism between vibration amplification and energy recovery, making it difficult to simultaneously achieve vibration reduction performance, structural compactness, and energy recovery efficiency. Therefore, how to amplify the micro-vibration displacement of airborne platforms, increase the relative sliding distance of the friction interface, and simultaneously achieve broadband vibration reduction and vibration energy recovery has become a key issue that urgently needs to be addressed in current airborne vibration reduction and protection. Summary of the Invention

[0006] The purpose of this invention is to provide a cross-lever type vibration reduction and energy recovery device for airborne platforms, which can amplify the micro-vibration displacement of airborne platforms in the protection of UAVs, increase the relative sliding distance of the friction interface, and simultaneously achieve broadband vibration reduction and vibration energy recovery.

[0007] The specific technical solution adopted by this invention is as follows: A cross-lever type vibration damping and energy recovery device for an airborne platform includes a top mounting plate, a damping assembly, and a bottom mounting plate connected sequentially in a straight line. The damping assembly is used for vibration damping and protection of the airborne platform of a UAV. The device also includes: A cross lever assembly is slidably disposed between the top mounting plate and the bottom mounting plate, and the cross lever assembly includes a first cross rod and a second cross rod that are hinged to each other; A sliding triboelectric generator assembly is embedded inside the base mounting plate. The sliding triboelectric generator assembly includes a positive output line, an upper electrode, an upper friction layer, a lower friction layer, a lower electrode, a negative output line, and a supporting base plate that are sequentially contacted along the vertical direction of the base mounting plate. The first and second cross rods are used to transfer the kinetic energy of the vibration to the upper and lower friction layers, causing the upper and lower friction layers to rub against each other and generate directional charge movement. The positive and negative output lines are used for energy recovery during the directional charge movement process.

[0008] As an optional solution, a straightening assembly is also included, which includes a cylinder, a piston rod, a support frame, and a heat-conducting mesh fabric arranged inside the bottom mounting plate and connected sequentially along the length of the bottom mounting plate; The support frame is rotatably connected to the first cross rod and the second cross rod, and the heat-conducting mesh is in contact with the sliding triboelectric generator and is used to dissipate the heat of the sliding triboelectric generator to the outside air.

[0009] As an alternative, the damping assembly includes a nonlinear spring welded between the top mounting plate and the bottom mounting plate; The nonlinear spring is used to provide a nonlinear restoring force to the top mounting plate and the bottom mounting plate during the closing process of the first and second cross bars.

[0010] As an alternative, the damping assembly includes a telescopic tube detachably mounted between the top mounting plate and the bottom mounting plate, and an airbag is inserted inside the telescopic tube; The airbag is used to provide nonlinear restoring force to the top mounting plate and bottom mounting plate during the closing of the first and second crossbars.

[0011] As an optional feature, the cross lever assembly further includes: A pin passes through the hinge point of the first and second cross rods; The first sliding shaft and the second sliding shaft are slidably mounted on the top mounting plate and the bottom mounting plate, respectively, and both the first sliding shaft and the second sliding shaft are rotatably connected to the first cross rod and the second cross rod; The second sliding shaft, the positive output line, the upper electrode, and the upper friction layer are sequentially fixedly connected along the bottom mounting plate.

[0012] As an alternative, a dielectric layer is laid between the upper and lower friction layers, and the dielectric layer is removed before energy recovery is performed between the upper and lower friction layers.

[0013] As an alternative, the upper friction layer is at least one of nylon, polyimide, or polyurethane material.

[0014] As an alternative, the lower friction layer is at least one of polytetrafluoroethylene, fluorinated ethylene propylene, or silicone rubber.

[0015] As an optional solution, the bottom mounting plate is provided with a contact pressure adjusting component for adjusting the friction interface between the upper friction layer and the lower friction layer. The adjusting component includes a pre-tightening plate and a pre-tightening screw connected in sequence along the pin shaft. A compression spring is welded between the pre-tightening plate and the bottom mounting plate. The preload screw is used to support the first and second crossbars at their lower limit positions.

[0016] As an alternative, the adjustment assembly further includes an adjusting nut threaded onto the outside of the preload screw, the adjusting nut being used to limit the preload pressure plate when the first cross rod and the second cross rod are closed to a preset degree.

[0017] The technical effects achieved by this invention are as follows: This invention, in the field of drone protection, utilizes a nonlinear elastic support structure to achieve wide-frequency vibration control and improve vibration reduction capabilities under complex working conditions.

[0018] In the field of drone protection, this invention achieves the conversion of vibration mechanical energy into electrical energy through a sliding triboelectric power generation structure, and simultaneously realizes energy recovery during the vibration reduction process.

[0019] In the field of drone protection, this invention utilizes a cross lever mechanism to convert the vertical vibration of the device into the horizontal movement of the slider, thereby increasing the relative sliding distance of the friction interface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a cross-lever type vibration damping and energy recovery device for an airborne platform according to Embodiment 1 of the present invention; Figure 2 This is the invention Figure 1 A side view of a cross-lever type vibration damping and energy recovery device for an airborne platform; Figure 3 This is the invention Figure 1 Bottom view of the top mounting plate; Figure 4 This is the invention Figure 1 Front view of the midsole mounting plate; Figure 5 This is the invention Figure 1 A schematic diagram of the structure of the cross lever assembly; Figure 6 This is the invention Figure 1Cross-sectional view of the cross lever assembly; Figure 7 This is the invention Figure 1 Exploded view of a mid-slip triboelectric generator assembly; Figure 8 This is the invention Figure 5 A schematic diagram of the structure of the adjustment component; Figure 9 This is a cross-sectional view of a cross-lever type vibration damping and energy recovery device for an airborne platform according to Embodiment 2 of the present invention; Figure 10 This is the invention Figure 9 Cross-sectional view of the telescopic tube and airbag; Figure 11 This is the invention Figure 9 Cross-sectional view of the cross lever assembly; Figure 12 This is the invention Figure 11 Bottom view of the heat-conducting mesh The attached diagram lists the components represented by each number as follows: 1. Top mounting plate; 101. First mounting plate; 102. First support plate; 103. First sliding hole; 2. Bottom mounting plate; 201. Second mounting plate; 202. Second support plate; 203. Second sliding hole; 3. Damping components; 301. Nonlinear spring; 302. Telescopic tube; 303. Airbag; 4. Cross lever assembly; 401. First cross lever; 402. Second cross lever; 403. Pin; 404. First sliding shaft; 405. Second sliding shaft; 5. Sliding triboelectric generator assembly; 501. Positive output line; 502. Upper electrode; 503. Upper triboelectric layer; 504. Lower triboelectric layer; 505. Lower electrode; 506. Negative output line; 507. Support base plate; 6. Adjustment assembly; 601. Preload plate; 602. Compression spring; 603. Preload screw; 604. Adjusting nut; 7. Straightening assembly; 701. Cylinder; 702. Piston rod; 703. Support frame; 704. Heat-conducting mesh. Detailed Implementation

[0021] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0022] Example 1: like Figures 1-8As shown, a cross-lever type vibration damping and energy recovery device for an airborne platform is applicable to multi-rotor UAVs, such as the Q20 quadcopter UAV. It includes a top mounting plate 1, a damping component 3, and a bottom mounting plate 2 connected in a straight line. A cross-lever component 4 is slidably arranged between the top mounting plate 1 and the bottom mounting plate 2. A sliding triboelectric generator component 5 connected to the cross-lever component 4 is embedded in the bottom mounting plate 2. During installation, the top mounting plate 1 and the bottom mounting plate 2 are fixed to the bottom of the multi-rotor UAV by bolts to form an airborne platform. The damping component 3 is used for vibration damping and protection of the UAV's airborne platform. When the drone vibrates, the top mounting plate 1 and the bottom mounting plate 2 move longitudinally. The opening or closing of the cross lever assembly 4 converts the vertical vibration of the device into horizontal movement, providing a driving force for the lateral movement of the sliding triboelectric generator assembly 5, increasing the relative sliding distance of the friction interface, and amplifying the vibration displacement through the torque of the cross lever assembly 4, thereby improving the output performance of triboelectric power generation. This allows the sliding triboelectric generator assembly 5 to convert vibration mechanical energy into electrical energy, and simultaneously achieve energy recovery during the vibration reduction process.

[0023] It should be noted that the sliding triboelectric generator 5 generates high-voltage electricity through triboelectric generation. This technology is equipped with a high-voltage rectifier bridge and inductive coupling or a dedicated chip to convert the high-voltage, high-impedance output into low-voltage, directly usable DC electricity (e.g., 5V or 3.3V), which is then transmitted to the drone's power battery via wires and a charging chip.

[0024] Specifically, the top mounting plate 1 includes a first mounting plate 101 and a first support plate 102 that are mounted together by screws. The first mounting plate 101 has a pin hole for connecting to the bottom of the multi-rotor UAV by bolts. The first support plate 102 has a first sliding hole 103. A guide fixing seat and a linear guide rail are fixed inside the first sliding hole 103 by screws. A slider is slidably mounted on the linear guide rail and is connected to the cross lever assembly 4 through a rotating shaft.

[0025] Specifically, the bottom mounting plate 2 includes a second mounting plate 201 and a second support plate 202 that are mounted together by screws. The second mounting plate 201 has pin holes for hanging photoelectric equipment such as drones. The second support plate 202 has a second sliding hole 203 for placing the sliding triboelectric generator assembly 5.

[0026] See attached document Figure 1 , Figure 2 and Figure 5The damping component 3 includes a nonlinear spring 301 welded between the top mounting plate 1 and the bottom mounting plate 2. The nonlinear spring 301 is configured in two groups and symmetrically distributed. The number of nonlinear springs 301 in each group is set to be no less than 3. When vibration occurs, the nonlinear spring 301 is used to provide nonlinear restoring force to the top mounting plate 1 and the bottom mounting plate 2 and realize vibration energy dissipation during the closing process of the first cross bar 401 and the second cross bar 402.

[0027] See attached document Figure 1 , Figure 2 and Figure 5 The cross lever assembly 4 includes a first cross rod 401 and a second cross rod 402 that are hinged to each other. Both the first cross rod 401 and the second cross rod 402 are connected to the slider through a pivot. The first cross rod 401 and the second cross rod 402 provide cross support between the first support plate 102 and the second support plate 202. When bearing load, the top mounting plate 1 and the bottom mounting plate 2 approach each other and press the first cross rod 401 and the second cross rod 402, so that the first cross rod 401 and the second cross rod 402 drive the slider to slide horizontally along the first sliding hole 103 on the one hand, and drive the sliding triboelectric generator 5 to slide locally along the second sliding hole 203 on the other hand, until they enter the closed state. When the load is removed, the top mounting plate 1 and the bottom mounting plate 2 move away from each other, causing the first cross bar 401 and the second cross bar 402 to enter the open state.

[0028] See attached document Figure 3 , Figure 5 and Figure 6 As an optional embodiment, the cross lever assembly 4 also includes a pin 403, a first sliding shaft 404, and a second sliding shaft 405. During installation, the pin 403 rotates through the hinge point of the first cross rod 401 and the second cross rod 402 via a bearing. The first sliding shaft 404 and the second sliding shaft 405 are slidably mounted on the top mounting plate 1 and the bottom mounting plate 2, respectively. Both the first sliding shaft 404 and the second sliding shaft 405 are rotatably connected to the first cross rod 401 and the second cross rod 402.

[0029] See attached document Figure 1 and Figure 7The sliding triboelectric generator assembly 5 includes a positive output line 501, an upper electrode 502, an upper friction layer 503, a lower friction layer 504, a lower electrode 505, a negative output line 506, and a supporting base plate 507 that are sequentially contacted along the bottom mounting plate 2 in a vertical direction. During installation, the second sliding shaft 405, the positive output line 501, the upper electrode 502, and the upper friction layer 503 are sequentially bonded (or welded) together along the bottom mounting plate 2 in a vertical direction. The lower friction layer 504, the lower electrode 505, the negative output line 506, and the supporting base plate 507 are sequentially bonded (or welded) together along the bottom mounting plate 2 to the bottom wall of the second sliding hole 203. When vibration occurs, the first cross rod 401 and the second cross rod 402 are used to transfer the kinetic energy of the vibration to the upper friction layer 503 and the lower friction layer 504, so that the upper friction layer 503 and the lower friction layer 504 rub against each other and generate directional movement of charges. The positive output line 501 and the negative output line 506 are used to recover energy during the directional movement of charges, realizing the conversion of vibration mechanical energy into electrical energy, and realizing energy recovery simultaneously during the vibration reduction process.

[0030] Specifically, the upper friction layer 503 is at least one of nylon, polyimide or polyurethane material, which enables the charge to move in a directional manner when it rubs against the lower friction layer 504.

[0031] Specifically, the lower friction layer 504 is at least one of polytetrafluoroethylene, fluorinated ethylene propylene, or silicone rubber, which enables the charge to move in a directional manner when rubbed against the upper friction layer 503.

[0032] Specifically, a dielectric layer is laid between the upper friction layer 503 and the lower friction layer 504. The dielectric layer is removed before the upper friction layer 503 and the lower friction layer 504 perform energy recovery to prevent the current from being generated by accidental shaking when the drone is in hibernation, which could cause the current to surge into the drone's power system.

[0033] See attached document Figure 2 , Figure 5 and Figure 6 The bottom mounting plate 2 is provided with a contact pressure adjustment assembly 6 for adjusting the friction interface between the upper friction layer 503 and the lower friction layer 504. The adjustment assembly 6 includes a pre-tightening plate 601 and a pre-tightening screw 603 connected radially along the pin shaft 403. A compression spring 602 is welded between the pre-tightening plate 601 and the bottom mounting plate 2. During installation, the pre-tightening plate 601 is welded to the pin shaft 403, and the pre-tightening screw 603 passes through the pre-tightening plate 601 along the threaded hole. The operator rotates the pre-tightening screw 603 along the threaded hole. During vibration reduction, the preload screw 603 rises and falls along with the pin 403. When it descends to contact the bottom mounting plate 2, it can be used to support the first cross bar 401 and the second cross bar 402 at the lower limit position, thereby limiting the normal contact pressure between the upper friction layer 503 and the lower friction layer 504.

[0034] The working principle of this invention is as follows: Under load, the top mounting plate 1 and the bottom mounting plate 2 move longitudinally. The opening or closing of the cross lever assembly 4 realizes the conversion of the vertical vibration of the device into horizontal movement, providing a driving force for the lateral movement of the sliding triboelectric generator assembly 5, increasing the relative sliding distance of the friction interface, and amplifying the vibration displacement through the torque of the cross lever assembly 4, thereby improving the output performance of triboelectric power generation. This enables the sliding triboelectric generator assembly 5 to convert vibration mechanical energy into electrical energy, and simultaneously realize energy recovery during the vibration reduction process.

[0035] Example 2: like Figures 9-12 As shown, a cross lever type vibration damping and energy recovery device for an airborne platform is basically the same as that in Embodiment 1, except that it also includes a straightening component 7. The straightening component 7 includes a cylinder 701, a piston rod 702, a support frame 703 and a heat-conducting mesh 704, which are disposed inside the second sliding hole 203 and connected sequentially along the length of the bottom mounting plate 2. During installation, the bottom of the cylinder 701 is welded (or bonded) to the inner wall of the second sliding hole 203, the piston end of the piston rod 702 is inserted into the cylinder 701, and the end of the support frame 703 is rotatably connected to the second sliding shaft 405 through a bearing, so that the support frame 703 is rotatably connected to the first cross lever 401 and the second cross lever 402. When the second sliding shaft 405 moves, the heat-conducting mesh 704 made of copper contacts the sliding triboelectric generator 5 and is used to dissipate the heat of the sliding triboelectric generator 5 to the outside air. Since the cylinder 701 is filled with a sufficient amount of inert gas, the cylinder 701 and the piston rod 702 apply a damping effect to the second sliding shaft 405 to achieve vibration reduction and protection.

[0036] As an optional embodiment, the heat-conducting mesh 704 can be made of ice silk fiber material, which can dissipate the heat of the sliding triboelectric generator 5 to the outside air.

[0037] See attached document Figure 9 and Figure 10 The damping assembly 3 includes a telescopic tube 302 that is detachably installed between the top mounting plate 1 and the bottom mounting plate 2 by screws. An airbag 303 is inserted inside the telescopic tube 302. During installation, the airbag 303 is filled with a sufficient amount of inert gas. When subjected to load, the telescopic tube 302 and the airbag 303 are compressed. The airbag 303 is used to provide nonlinear restoring force to the top mounting plate 1 and the bottom mounting plate 2 during the closing process of the first cross bar 401 and the second cross bar 402, so as to achieve the vibration reduction and protection effect.

[0038] See attached document Figure 9The adjustment assembly 6 also includes an adjustment nut 604 threaded onto the outside of the pre-tightening screw 603. The adjustment nut 604 is used to limit the pre-tightening plate 601 when the first cross rod 401 and the second cross rod 402 are closed to a preset degree. During installation, two adjustment nuts 604 are arranged on the outside of each pre-tightening screw 603. The two adjustment nuts 604 serve as the upper limit and lower limit of the pre-tightening plate 601, respectively, to control the normal contact pressure of the upper friction layer 503 and the lower friction layer 504.

[0039] The working principle of the present invention is as follows: when the second sliding shaft 405 moves, the heat-conducting mesh 704 contacts the sliding triboelectric generator 5 and is used to dissipate the heat of the sliding triboelectric generator 5 to the outside air. The cylinder 701 and the piston rod 702 apply a damping effect to the second sliding shaft 405.

[0040] Simultaneously, the telescopic tube 302 and the airbag 303 are compressed, with the airbag 303 used to provide nonlinear restoring force to the top mounting plate 1 and the bottom mounting plate 2 during the closing process of the first cross bar 401 and the second cross bar 402.

[0041] In summary, this invention provides a compact and lightweight cross-lever type vibration damping and energy recovery device that achieves wide-frequency vibration control and improves vibration damping capabilities under complex working conditions. In the protection of unmanned aerial vehicles (UAVs), it enables the conversion of mechanical energy from vibration into electrical energy, simultaneously recovering energy during vibration damping. It is suitable for complex vibration environments such as UAV gimbals, airborne optoelectronic platforms, and low-altitude aircraft.

[0042] The above description is merely an optional embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A cross-lever type vibration damping and energy recovery device for an airborne platform, comprising a top mounting plate (1), a damping assembly (3), and a bottom mounting plate (2) connected sequentially in a straight line, wherein the damping assembly (3) is used for vibration damping and protection of the airborne platform of a UAV, characterized in that, Also includes: A cross lever assembly (4) is slidably disposed between the top mounting plate (1) and the bottom mounting plate (2). The cross lever assembly (4) includes a first cross rod (401) and a second cross rod (402) that are hinged to each other. A sliding triboelectric generator assembly (5) is embedded in the bottom mounting plate (2). The sliding triboelectric generator assembly (5) includes a positive output line (501), an upper electrode (502), an upper friction layer (503), a lower friction layer (504), a lower electrode (505), a negative output line (506), and a supporting base plate (507) that are in vertical contact with the bottom mounting plate (2) in sequence. The first cross rod (401) and the second cross rod (402) are used to transfer the kinetic energy of the vibration to the upper friction layer (503) and the lower friction layer (504), so that the upper friction layer (503) and the lower friction layer (504) rub against each other and generate charge directional movement. The positive output line (501) and the negative output line (506) are used for energy recovery during the charge directional movement process.

2. The cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that: It also includes a straightening component (7), which includes a cylinder (701), a piston rod (702), a support frame (703), and a heat-conducting mesh (704) arranged inside the bottom mounting plate (2) and connected in sequence along the length of the bottom mounting plate (2). The support frame (703) is rotatably connected to the first cross rod (401) and the second cross rod (402), and the heat-conducting mesh (704) contacts the sliding triboelectric generator assembly (5) and is used to dissipate the heat of the sliding triboelectric generator assembly (5) to the outside air.

3. The cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that: The damping assembly (3) includes a nonlinear spring (301) welded between the top mounting plate (1) and the bottom mounting plate (2). The nonlinear spring (301) is used to provide a nonlinear restoring force to the top mounting plate (1) and the bottom mounting plate (2) during the closing process of the first cross bar (401) and the second cross bar (402).

4. The cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that: The damping assembly (3) includes a telescopic tube (302) detachably installed between the top mounting plate (1) and the bottom mounting plate (2), and an airbag (303) is inserted inside the telescopic tube (302). The airbag (303) is used to provide nonlinear restoring force to the top mounting plate (1) and the bottom mounting plate (2) during the closing process of the first cross bar (401) and the second cross bar (402).

5. A cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that, The cross lever assembly (4) also includes: A pin (403) passes through the hinge point of the first cross rod (401) and the second cross rod (402); The first sliding shaft (404) and the second sliding shaft (405) are slidably mounted on the top mounting plate (1) and the bottom mounting plate (2), respectively. The first sliding shaft (404) and the second sliding shaft (405) are rotatably connected to the first cross rod (401) and the second cross rod (402). The second sliding shaft (405), the positive output line (501), the upper electrode (502) and the upper friction layer (503) are fixedly connected vertically along the bottom mounting plate (2).

6. A cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that: A dielectric layer is laid between the upper friction layer (503) and the lower friction layer (504), and the dielectric layer is removed before energy recovery is performed between the upper friction layer (503) and the lower friction layer (504).

7. A cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that: The upper friction layer (503) is at least one of nylon, polyimide or polyurethane material.

8. A cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 1, characterized in that: The lower friction layer (504) is at least one of polytetrafluoroethylene, fluorinated ethylene propylene, or silicone rubber.

9. A cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 5, characterized in that: The bottom mounting plate (2) is provided with a contact pressure adjustment assembly (6) for adjusting the friction interface between the upper friction layer (503) and the lower friction layer (504). The adjustment assembly (6) includes a pre-tightening plate (601) and a pre-tightening screw (603) connected radially along the pin (403). A compression spring (602) is welded between the pre-tightening plate (601) and the bottom mounting plate (2). The preload screw (603) is used to support the first cross bar (401) and the second cross bar (402) at the lower limit position.

10. A cross-lever type vibration damping and energy recovery device for an airborne platform according to claim 9, characterized in that: The adjustment assembly (6) further includes an adjustment nut (604) threaded onto the outside of the pre-tightening screw (603), the adjustment nut (604) being used to limit the pre-tightening pressure plate (601) when the first cross rod (401) and the second cross rod (402) are closed to a preset degree.

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