Unmanned aerial vehicle lifting platform

Abstract

The invention relates to the technical field of lifting equipment, in particular to an unmanned aerial vehicle lifting platform. The guide rail assembly comprises an upper guide rail assembly and a lower guide rail assembly, and one end of the lower guide rail assembly is connected to the base plate; one end of the shear fork assembly is connected with one end of the upper guide rail assembly, and the other end of the shear fork assembly is connected with the other end of the lower guide rail assembly; the lifting driving assembly is arranged between the lower guide rail assemblies and located on the base plate; the platform body is connected with the other end of the upper guide rail assembly; the clamping assembly is connected to the platform body, the clamping assembly comprises clamping rods and a clamping driving part, the clamping rods are perpendicular to each other, and the clamping driving part drives the clamping rods to move on the platform body; the unmanned aerial vehicle lifting platform has the characteristics of high precision and good stability.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, and in particular to a drone lifting platform. Background Technology

[0002] Vehicle-mounted drone lifting platforms are typically placed on modified light commercial vehicles. The roof is designed with an openable electric sunroof, and the lifting platform extends a certain height from the roof to allow small drones to take off and land. During the landing process, there may be a deviation from the origin point. At this time, the centering rod of the lifting platform will push the drone landing gear to slide back to the center. Existing vehicle-mounted drone lifting platforms have problems such as poor stability and uneven force distribution. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a drone lifting platform that solves the technical problems of unstable low-angle take-off, easy shaking, and poor centering accuracy caused by storage space limitations in the prior art.

[0004] This invention first provides a drone lifting platform, which includes:

[0005] substrate;

[0006] A guide rail assembly, comprising an upper guide rail assembly and a lower guide rail assembly, wherein one end of the lower guide rail assembly is connected to the substrate;

[0007] A scissor lift assembly, one end of which is connected to one end of the upper guide rail assembly, and the other end of which is connected to the other end of the lower guide rail assembly, the scissor lift assembly including two connected scissor arms;

[0008] A lifting drive assembly is disposed between the lower guide rail assemblies and located on the base plate. The lifting drive assembly includes a first motor, a reducer connected to the output end of the first motor, and a commutator connected to the output end of the reducer. Two first lead screws are symmetrically connected to both sides of the commutator. A first drive nut is connected to the two first lead screws. The first drive nut is connected to the bottom of the scissor lift assembly.

[0009] The platform body is connected to the other end of the upper guide rail assembly;

[0010] And a clamping assembly, which is connected to the platform body, the clamping assembly including clamping rods arranged perpendicularly to each other and a clamping drive for driving the clamping rods to move on the platform body;

[0011] In the retracted state, the initial angle between the scissor arm of the scissor lift assembly and the horizontal plane is no greater than 3°, and the axial stiffness of the first lead screw is greater than or equal to 415 N / μm.

[0012] The present invention provides a drone lifting platform with the following advantages: under the action of the maximum horizontal component force generated by the drone landing, the structural axial deformation δ of the lifting platform is limited to within 36μm, so as to eliminate the origin deviation of the drone in conjunction with the centering rod, and solve the technical problems of unstable low-angle take-off, easy shaking and poor centering accuracy caused by storage space limitations in vehicle environment. Attached Figure Description

[0013] Figure 1 A schematic diagram of the lifting platform of this invention;

[0014] Figure 2 This is a schematic diagram of the lifting platform in this invention;

[0015] Figure 3 This is a schematic diagram of the lifting platform in this invention;

[0016] Figure 4 This is a schematic diagram of the lifting platform in this invention;

[0017] Figure 5 This is a bottom view of the lifting platform in this invention;

[0018] Figure 6 This is a bottom view of the lifting platform in this invention;

[0019] Figure 7 This is a diagram showing the stress analysis results of the lifting platform in an embodiment of the present invention;

[0020] Figure 8 This is a diagram showing the displacement analysis results of the lifting platform in an embodiment of the present invention;

[0021] Figure 9 The diagram shows the strain analysis results of the lifting platform in the embodiment of the invention.

[0022] Numbering on the map:

[0023] 1-Substrate;

[0024] 2-Guide rail assembly, 21-Lower guide rail assembly, 211-First guide rod, 212-First guide block, 22-Upper guide rail assembly, 221-Second guide rod, 222-Second guide block;

[0025] 3-Fixing rod;

[0026] 4-Lifting drive assembly, 41-First motor, 42-Reducer, 43-Commutator, 44-First lead screw, 45-First drive nut, 46-First bearing housing;

[0027] 5-Scissor lift assembly, 51-First scissor lift arm, 52-Second scissor lift arm, 53-First link, 54-Second link, 55-Third link;

[0028] 6-Platform body, 61-Through hole;

[0029] 7-Clamping assembly, 71-Clamping rod, 71a-Connecting section, 71b-Transition section, 71c-Clamping section, 711-First clamping rod, 712-Second clamping rod, 72-Clamping drive component, 721-First clamping drive component, 722-Second clamping drive component, 73-First slide rail assembly, 74-Second slide rail assembly, 7211-Second motor, 7212-First pulley, 7213-Second lead screw, 7214-Second drive nut, 7215-Second bearing seat, 7221-Third motor, 7222-Second pulley, 7223-Third lead screw, 7224-Third drive nut, 7225-Third bearing seat, 731-First slide rod, 732-First slider, 733-First support seat, 741-Second slide rod, 742-Second slider, 743-Second support seat. Detailed Implementation

[0030] The present invention will be further illustrated by specific embodiments below.

[0031] In this embodiment, the rated load of the lifting platform is 50kg, and the maximum lifting stroke is 800mm.

[0032] like Figure 1 As shown, the lifting platform includes a base plate 1, which may be a rectangular base plate 1.

[0033] like Figure 2 and Figure 4 As shown, the lifting platform includes a guide rail assembly 2, which includes a lower guide rail assembly 21 and an upper guide rail assembly 22. The lower guide rail assembly 21 is disposed at both ends of the base plate 1. The lower guide rail assembly 21 includes two first guide rods 211 and two first guide blocks 212 located on the first guide rods 211. The first guide blocks 212 are slidably connected to the first guide rods 211. The guide rail assembly 21 is a micro linear guide rail.

[0034] like Figure 1 As shown, the lifting platform includes a fixed rod 3, which connects the first guide blocks 212 at both ends.

[0035] like Figure 4As shown, the upper guide rail assembly 22 is located at the bottom of the platform body 6. The upper guide rail assembly 22 includes two second guide rods 221 and two second guide blocks 222 that are slidably connected to the second guide rods 221.

[0036] like Figure 1 As shown, the lifting platform includes a lifting drive assembly 4, which is located on the base plate 1 and disposed between two sets of lower guide rail assemblies 21. The lifting drive assembly 4 includes a first motor 41, the output end of which is connected to a reducer 42, and the output end of the reducer 42 is connected to a commutator 43, which may be a T-type commutator.

[0037] The reducer 42 can have a reduction ratio of 100:1, and the reducer 42 and the commutator 43 can be driven by a synchronous belt pulley.

[0038] The lifting drive assembly 4 also includes two first lead screws 44 connected to both sides of the commutator 43. A first drive nut 45 is connected to each first lead screw 44, and two first bearing seats 46 can be provided at both ends of each first lead screw 44. The two first lead screws 44 rotate synchronously via the commutator 43.

[0039] The nominal diameter of the first lead screw 44 can be 40mm, the lead of the first lead screw 44 can be 10mm, and the rated dynamic load of the first lead screw 44 is greater than or equal to 49.5KN.

[0040] The first bearing housing 46 contains a bearing. The bearings in the two first bearing housings 46 are different, and each housing contains different types of bearings to form a fixed-floating support combination. The bearing at one end of the first lead screw 44 is a fixed-end bearing, configured to bear radial loads and bidirectional axial loads. The bearing at the other end of the first lead screw 44 is a floating-end bearing, configured to bear radial loads and provide axial displacement compensation space. One bearing can be a paired angular contact bearing, bearing radial and bidirectional axial forces, while the other bearing is a deep groove ball bearing, providing radial support and allowing axial floating. To ensure motion accuracy and rigidity, the supports at both ends of the first lead screw 44 employ this specific combination.

[0041] Calculations show that, under the worst operating conditions (3° lifting), a single first lead screw 44 can provide the required thrust of approximately 15 kN.

[0042] like Figure 2 and Figure 4As shown, the lifting platform includes a scissor lift assembly 5. The bottom of the scissor lift assembly 5 is connected to the lower guide rail assembly 21, and the top is connected to the upper guide rail assembly 22. The scissor lift assembly 5 includes scissor arms, which include a first scissor arm 51 and a second scissor arm 52 connected together. The bottom of the scissor arm is connected to the fixed rod 3. Specifically, the scissor lift assembly 5 also includes a first connecting rod 53, a second connecting rod 54, and a third connecting rod 55 connecting the first scissor arm 51 and the second scissor arm 52. The first connecting rod 53 can connect the first guide block 212 and the bottom of the scissor arm.

[0043] The scissor lift arm can be made of aluminum alloy, such as 6061-T6 aluminum alloy. Each arm has a length of 800mm and a thickness of 20mm to balance strength and lightweight requirements. In the fully retracted state, the initial angle between the scissor lift arm and the horizontal plane is designed to be a very low 3° to achieve minimal folding height.

[0044] like Figure 4 As shown, the second link 54 can be positioned at the intersection of the scissor arms, and the third link 55 is located at the top of the scissor arms.

[0045] like Figure 1 As shown, the lifting platform includes a platform body 6, which can support the drone. The width of the platform body 6 can be 1000mm, and the platform body 6 can be a square structure. The thickness of the platform body 6 can be 10mm.

[0046] The first lead screw 44 is reverse driven, driving the first drive nut 45 to move the connecting rod in opposite directions through the guide rail assembly, thereby causing the platform body 6 to rise and fall.

[0047] The lifting platform includes a clamping assembly 7, which includes a clamping rod 71, a clamping drive component 72, and a slide rail assembly. The clamping drive component 72 and the slide rail assembly can be disposed at the bottom of the platform body 6. The clamping rod 71 includes two first clamping rods 711 and two second clamping rods 712.

[0048] like Figure 1 and Figure 2As shown, the clamping rod 71 consists of connecting sections 71a at both ends, a clamping section 71c, and a transition section 71b connecting the two. The connecting sections 71a and clamping sections 71c are parallel to the platform body 6, and the transition section 71b has an acute angle with the platform body 6. The connecting sections 71a at both ends are connected to the clamping drive component 72 and the slide rail assembly, respectively. The clamping section 71c is located above the platform body 6. The clamping section of the second clamping rod 712 is located above the clamping section of the first clamping rod 711, and the two can be vertically aligned.

[0049] like Figure 6 As shown, the clamping drive 72 is disposed at the bottom of the platform body 6. The clamping drive 72 includes a first clamping drive 721 and a second clamping drive 722. The slide rail assembly includes a first slide rail assembly 73 and a second slide rail assembly 74. The first clamping drive 721 and the first slide rail assembly 73 can be disposed on opposite sides of the platform body 6, and the second clamping drive 722 and the second slide rail assembly 74 can be disposed on the other opposite side of the platform body 6.

[0050] The first clamping drive component 721 includes a second motor 7211. The output end of the second motor 7211 is connected to two second lead screws 7213 via a first pulley 7212. The second lead screws 7213 can be fixed to the bottom of the platform body 6 via a second bearing seat 7215. A second drive nut 7214 is provided on the second lead screw 7213.

[0051] like Figure 5 As shown, the second clamping drive component 722 includes a third motor 7221. The output end of the third motor 7221 is connected to two third lead screws 7223 via a second pulley 7222. The third lead screws 7223 can be fixed to the bottom of the platform body 6 via a third bearing seat 7225. A third drive nut 7224 is provided on the third lead screw 7223.

[0052] like Figure 2 and Figure 6 As shown, specifically, a through hole 61 is provided on the platform body 6, and the through hole 61 is located at the edge of the platform body 6. A second drive nut 7214 is connected to the second lead screw 7213, and the second drive nut 7214 is connected to one end of the first clamping rod 711.

[0053] like Figure 5 and Figure 6As shown, the first slide rail assembly 73 includes a first slide rod 731, on which a first slider 732 is provided, and both ends of the first slide rod 731 are located within the first support base 733. The second slide rail assembly 74 includes a second slide rod 741, on which a second slider 742 is provided, and both ends of the second slide rod 741 are located within the second support base 743.

[0054] One end of the first clamping rod 711 is connected to the second driving nut 7214 of the first clamping drive member 721, and the other end of the first clamping rod 711 is connected to the first slider 732 on the first slide rail assembly 73.

[0055] One end of the second clamping rod 712 is connected to the third driving nut 7224 on the second clamping drive member 722, and the other end of the second clamping rod 712 is connected to the second slider 742 on the second slide rail assembly 74.

[0056] The clamping principle of the present invention can be as follows: one end is driven by a pulley to rotate two lead screws simultaneously, and the other end is connected by a slide rail assembly, so that the clamping rods on the platform body move in opposite directions to clamp the UAV landing gear.

[0057] One end of the horizontal axis also drives two lead screws to rotate simultaneously via a pulley, while the other end is connected via a slide rail assembly, causing the clamping rods on the platform body to move in opposite directions to clamp the drone landing gear.

[0058] The platform body 6 has multiple through holes 61 on its edge. The positions of the through holes 61 are matched with the positions of the second lead screw 7213, the third lead screw 7223, the first slide rod 731, and the second slide rod 741. Specifically, the connecting sections 71a at both ends of the clamping rod 71 are respectively set in different through holes 61 to connect with the clamping drive component 72 and the slide rail assembly at the bottom of the platform body 6.

[0059] The technical effects of the present invention will be further illustrated below through specific calculations and parameter design.

[0060] The horizontal movement speed of the first driving nut of the present invention can be expressed by the following formula:

[0061] ;

[0062] V screw V represents the horizontal movement speed of the first drive nut. platform V represents the vertical lifting speed of the platform body, where θ represents the real-time angle between the scissor arm and the horizontal plane, and V platform The speed is 5~15 mm / s, and θ is 3. 。 ~33.5。 .

[0063] The first lead screw 44 used in this invention has high axial stiffness. High stiffness ensures the accuracy of centering. The axial stiffness of the first lead screw 44 can be calculated using the following formula:

[0064] and

[0065] In the above formula, L represents the support span of the first lead screw, d represents the nominal diameter of the first lead screw, and K screw F represents the axial stiffness of the first lead screw, δ is the maximum axial deformation of the first lead screw, and F screw This represents the thrust borne by a single lead screw. Where E = 2.06 × 10⁻⁶ 5 MPa, L=1000mm, d=40mm, K screw =415 N / μm.

[0066] The overall layout of this invention enables the first lead screw to achieve an axial stiffness of 415 N / μm, and the axial deformation under maximum thrust is only about 36 μm, which is far less than the allowable value of 0.1 mm, thus ensuring the positioning accuracy of the platform under high load.

[0067] Calculation process:

[0068] Axial stiffness \(K_{screw} = \frac{π×d^4×E}{4×L^3}\)

[0069] Where, E = elastic modulus = 2.06 × 10^5 MPa, L = screw support span = 1000 mm;

[0070] \(d=40mm\),\(d^4=2560000mm^4\);

[0071] \(K_{screw}=\frac{3.14×2560000×2.06×10^5}{4×1000^3}≈415N / μm\);

[0072] The double scissor lift is driven synchronously by two lead screws. The thrust of a single lead screw is F_{screw} = \frac{G_{total}×1.5}{2×tanθ}\ (1.5 is a safety factor).

[0073] (tan3°≈0.0524), Total load (including safety factor) (G_{total}×1.5=1574.5N);

[0074] The maximum thrust of a single lead screw is approximately 15000 N (F_{screw,max} = \frac{1574.5}{2×0.0524}≈15000 N = 15 kN).

[0075] At the maximum angle of 33.5°, the thrust is approximately 1181 N (F_{screw,min} = \frac{1574.5}{2×0.667}≈1181 N). (The selection is based on the maximum value of 15 kN).

[0076] The maximum deformation is approximately 36 μm (0.1 mm) (allowable deformation), and the stiffness is satisfied.

[0077] By controlling the axial deformation of the first lead screw to 36μm, and in conjunction with the micro linear guide rail, the repeatability of the centering mechanism after the UAV lands can be guaranteed.

[0078] The landing of drones places extremely high demands on platform stability. When faced with a light load of 50KG, technicians usually choose a small lead screw. However, this invention solves the problem of centering deviation caused by light load but high initial thrust by using a large-scale component, which addresses the coupling relationship between extremely low angle load and accuracy.

[0079] To achieve compact storage of the vehicle-mounted drone, the platform's initial angle was compressed to 3°. According to mechanical properties, the lower the angle, the greater the horizontal thrust F received by the lead screw (up to 15KN). This enormous thrust would cause significant deformation of the mechanical structure, thereby compromising the drone's centering accuracy during landing. Under the extreme load of 15KN, the deformation must be controlled within 36μm.

[0080] The lifting platform includes upper and lower guide rail assemblies. The load of a single guide rail (F_{rail}=\frac{1574.5}{4}≈393.6N\) (including safety factor) can be of model MGN15C, with a rated dynamic load of 4.2kN and a rated static load of 7.8kN. By using miniature linear guide rails with a rated dynamic load that is more than 10 times greater than the actual load, combined with a high-rigidity screw support structure, the vibration and centering deviation problems under light loads and extremely low initial angle start-up are solved.

[0081] The first lead screw speed of the present invention is calculated as follows:

[0082] The speed at which the screw drives the nut to move is given by \(v_{screw}=v_{platform}×\frac{tanθ}{2}\) (geometric relationship between platform speed and drive nut speed).

[0083] The screw speed is given by: n_{screw} = v_{screw} × 60}{P} (where P is the screw lead, in mm).

[0084] Calculation process:

[0085] Given the platform's maximum speed (v_{platform}=15mm / s) and θ=33.5°, then (v_{screw}=15×\frac{0.667}{2}≈5mm / s);

[0086] If the lead screw is selected as P=10mm (considering both speed and torque), then n_{screw}=\frac{5×60}{10}=30r / min\).

[0087] The rated dynamic load of the first lead screw of this invention is checked as follows: (GB / T 17587.3-2017)

[0088] The rated life of the ball screw is \(L_{10}=(\frac{C}{F})^3×10^6\) (revolutions), which is transformed to obtain the rated dynamic load \(C = F×(\frac{L}{10^6})^{\frac{1}{3}}\), where F is the maximum thrust of a single first screw.

[0089] Design life (L_h = 20000h), total revolutions (L = 60 × n_{screw} × L_h = 60 × 30 × 20000 = 3.6 × 10^7 revolutions);

[0090] (C = 15000×(3.6×10^710^6)^{13}=15000×3.302≈49530N≈49.5kN). Therefore, the actual selection of the first lead screw needs to match a rated dynamic load ≥ 49.5kN.

[0091] The stress, displacement, and strain analysis of the UAV lifting platform of this invention are as follows: Figures 7-9 As shown, the specific parameter design and selection are shown in Tables 1 and 2.

[0092] from Figure 7 As can be seen, the simulation cloud map shows that the main body of the model is covered with a large area of ​​blue (low stress zone). This proves that the stress distribution inside the lifting platform structure is extremely uniform, far below the yield limit of the material, ensuring that the mechanism will not undergo permanent plastic deformation during frequent lifting.

[0093] Figure 8Displacement analysis verified the motion synchronization. The displacement cloud map showed a smooth color gradient transition from the base plate to the bottom platform, and the red area of ​​the top platform was evenly distributed, indicating that the lifting platform remained horizontal during the lifting process without obvious tilting or shaking. Figure 9 Strain analysis verified the high rigidity. The cloud map showed extremely low and stable equivalent strain values, providing an absolutely stable mechanical reference for the centering mechanism after the UAV lands.

[0094] Table 1 Design Parameter Description

[0095] Parameters Value / Explanation Platform rated load 50kg (490.5N) Platform size 1000×1000mm (Aluminum alloy material, 10mm thickness, weight ≈27kg / 264.87N) The weight of the scissor lift mechanism The total weight of the double scissor lift is approximately 30 kg (294.3 N). <![CDATA[Total vertical load (G _total )]]> (50+27+30)×9.81=1049.67N (including safety factor of 1.5: 1574.5N) Climbing speed 5~15mm / s (15mm / s for verification) Lifting stroke 800mm (double scissor lift) Initial angle of scissors and forks θ_min=3°

[0096] Table 2. Selection list of each component in this embodiment

[0097] Component type Model Specifications Key parameters First lead screw HIWIN R40-10T3-FSI Nominal diameter 40mm, lead 10mm, rated dynamic load 78.9kN First bearing housing BK40 (fixed end) + BF40 (moving end) Compatible with R40 lead screw First Motor MSMF102L1U2M 1kW, 3000r / min, rated torque 3.18N・m speed reducer Matching planetary gear reducer Reduction ratio 100, rated torque ≥50 N·m Synchronous belt pulley H type, Z1=20 / Z2=20 Pitch 12.7mm, bandwidth 15mm Synchronous belt H type, length 510mm 40 teeth Guide rail assembly HIWIN MGN15C Rated dynamic load: 4.2 kN Scissor arms Customized 6061-T6 aluminum alloy Length 800mm, thickness 20mm, width 50mm

[0098] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in the present invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the art. In addition to the specific methods, devices, and materials used in the embodiments, based on the knowledge of those skilled in the art and the description of the present invention, any prior art methods, devices, and materials similar to or equivalent to those described, used, and materials in the embodiments of the present invention can be used to implement the present invention. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A drone lifting platform, characterized in that: The drone lifting platform includes: substrate; A guide rail assembly, comprising an upper guide rail assembly and a lower guide rail assembly, wherein one end of the lower guide rail assembly is connected to the substrate; A scissor lift assembly, one end of which is connected to one end of the upper guide rail assembly, and the other end of which is connected to the other end of the lower guide rail assembly, the scissor lift assembly including two connected scissor arms; A lifting drive assembly is disposed between the lower guide rail assemblies and located on the base plate. The lifting drive assembly includes a first motor, a reducer connected to the output end of the first motor, and a commutator connected to the output end of the reducer. Two first lead screws are symmetrically connected to both sides of the commutator. A first drive nut is connected to the two first lead screws. The first drive nut is connected to the bottom of the scissor lift assembly. The platform body is connected to the other end of the upper guide rail assembly; And a clamping assembly, which is connected to the platform body, the clamping assembly including clamping rods arranged perpendicularly to each other and a clamping drive for driving the clamping rods to move on the platform body; In the retracted state, the initial angle between the scissor arm of the scissor lift assembly and the horizontal plane is no greater than 3°, and the axial stiffness of the first lead screw is greater than or equal to 415 N / μm.

2. The UAV lifting platform according to claim 1, characterized in that, The lifting drive assembly includes a first bearing housing supported at both ends of the first lead screw. The first bearing housing includes a fixed end bearing housing and a floating end bearing housing. The fixed end bearing housing is provided with paired angular contact bearings, and the floating end bearing housing is provided with deep groove ball bearings.

3. The UAV lifting platform according to claim 1, characterized in that, The lower guide rail assembly includes a first guide rod fixed on the base plate and a first guide block slidably connected to the first guide rod. A fixing rod is connected between the first guide blocks corresponding to the two sets of lower guide rail assemblies. The bottom of the scissor lift assembly is connected to one end of the fixing rod, and the other end of the fixing rod is connected to the first drive nut.

4. The UAV lifting platform according to claim 1, characterized in that, The scissor arms include a first scissor arm and a second scissor arm that are arranged to cross each other, and a first link, a second link and a third link for connecting the first scissor arms and the second scissor arms. The first link is located at the bottom of the first scissor arms and the second scissor arms, the second link is located at the middle intersection of the first scissor arms and the second scissor arms, and the third link is located at the top of the first scissor arms and the second scissor arms.

5. The UAV lifting platform according to claim 1, characterized in that, The clamping rod includes a set of first clamping rods and a set of second clamping rods. The clamping rod includes a connecting section located below the platform body, a clamping section located above the platform body, and a transition section connecting the connecting section and the clamping section. The connecting section and the clamping section are both arranged parallel to the platform body, and the transition section is arranged at an angle to the platform body.

6. The UAV lifting platform according to claim 5, characterized in that: The platform body has through holes on its edge for the transition section to pass through and move back and forth. One end of the connecting section is connected to the clamping drive, and the other end of the connecting section is connected to a slide rail assembly.

7. The UAV lifting platform according to claim 6, characterized in that: The clamping drive and the slide rail assembly are disposed at the bottom of the platform. The clamping drive includes a first clamping drive and a second clamping drive. The first clamping drive includes a second motor, a second lead screw driven to rotate by the second motor, and a second drive nut fitted on the second lead screw. The second drive nut is fixedly connected to a connecting section on the first clamping rod.

8. The UAV lifting platform according to claim 7, characterized in that: The second clamping drive includes a third motor, a third lead screw driven to rotate by the third motor, and a third drive nut fitted on the third lead screw. The third drive nut is fixedly connected to a connecting section on the second clamping rod.

9. The UAV lifting platform according to claim 1, characterized in that: The rated dynamic load of the guide rail assembly is more than 10 times the load that the guide rail assembly experiences under maximum load conditions.

10. The UAV lifting platform according to claim 1, characterized in that: The rated dynamic load of the first lead screw is greater than or equal to 49.5 kN.

Images