An unmanned vehicle freight handling system
By designing a dedicated fuselage support frame, tail section auxiliary support frame, and loading/unloading transport vehicle, the problems of cargo jamming, fuselage instability, and damage during the loading and unloading process of unmanned transport aircraft have been solved, achieving stable and safe cargo delivery and loading/unloading.
Patent Information
- Application Number
- CN202522307147.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-31
AI Technical Summary
Existing cargo loading and unloading equipment for unmanned transport aircraft lacks specialization, leading to cargo jamming, collisions, and instability of the aircraft during loading and unloading. Furthermore, general-purpose equipment may damage the fuselage skin and structure.
The design includes a dedicated fuselage support frame, a tail section auxiliary support frame, and a loading and unloading transport vehicle, including a lifting seat, a lateral movement mechanism, and a roller mounting frame. The cargo can be smoothly transported through height adjustment and lateral displacement, and the support surface matches the shape of the fuselage to avoid damage.
It enables stable and safe loading and unloading of cargo, avoids damage to the fuselage skin and structure, improves loading and unloading efficiency and safety, and enhances the versatility and flexibility of the system.
Smart Images
Figure CN224929240U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of air cargo ground support equipment, and relates to an unmanned transport aircraft cargo loading and unloading system. Background Technology
[0002] With the development of drone technology, the application of large unmanned transport aircraft in logistics is gradually increasing. Taking the TP500 large unmanned transport aircraft as an example, its fuselage length is 8.67 meters, its height is 2.97 meters, and its maximum load capacity is 500 kg. Currently, the loading and unloading of cargo by this type of unmanned transport aircraft mainly relies on manual labor. For pallets weighing up to 500 kg, relying solely on manual handling results in high labor intensity, low efficiency, and safety risks. Forklifts and ordinary hydraulic lifting platform trucks are sometimes used on-site for assistance. However, these devices are not designed for specific models of unmanned transport aircraft and have limitations: First, general-purpose equipment lacks a dedicated adjustment mechanism for aligning with the aircraft cargo hold door, making it easy for pallets to get stuck or collide when entering or leaving the cargo hold; second, most equipment only has simple lifting functions and cannot make lateral position adjustments in the horizontal plane, making it difficult to achieve smooth connection with the conveyor rollers inside the cabin; furthermore, the relative position of its load-bearing platform structure and the aircraft cargo hold door is unstable, which may cause accidental scraping or impact to the door structure during loading and unloading.
[0003] Furthermore, the lack of dedicated support equipment makes it difficult to guarantee the overall attitude of the aircraft, especially the stability of the rear fuselage, when loading and unloading cargo. This further increases the difficulty and risk of the operation. Existing technologies employ support structures such as jacks, shims, or universal brackets to address fuselage stability issues. However, these structures are typically fragmented and independent tools, not dedicated systems designed for the specific aircraft model. They cannot coordinate with transport equipment during loading and unloading, making it difficult to form a stable support system. More seriously, the mismatch between the support surface of universal support structures and the aircraft's fuselage shape can lead to stress concentration at the support points, increasing the risk of crushing or scratching the fuselage skin and internal structures, causing secondary damage to the aircraft.
[0004] Therefore, a collaborative and safe loading and unloading component is needed to ensure the reliable operation of unmanned transport aircraft cargo operations. Utility Model Content
[0005] The purpose of this utility model is to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.
[0006] The technical solution provided by this utility model is as follows: A cargo loading and unloading system for an unmanned transport aircraft includes a fuselage support frame, a tail section auxiliary support frame, and a loading and unloading transport vehicle. The fuselage support frame supports the middle section of the fuselage; the tail section auxiliary support frame supports the tail section of the fuselage; the loading and unloading transport vehicle docks with the tail section of the aircraft cargo hold and carries cargo. The loading and unloading transport vehicle includes a first lifting seat, a lateral movement mechanism, and a roller mounting frame. A lateral slide is provided above the first lifting seat, and the roller mounting frame is slidably mounted on the first lifting seat through the lateral slide. The lateral movement mechanism can drive the roller mounting frame to move laterally, and the roller mounting frame is provided with at least one row of rollers for conveying cargo.
[0007] Based on the above technical solution, the present invention can be further improved as follows.
[0008] Furthermore, the fuselage support frame includes a second lifting seat and a fuselage bracket. The fuselage bracket is detachably mounted on the second lifting seat via a first locking strip. The fuselage bracket is provided with a first arc-shaped groove that matches the shape of the middle section of the fuselage, and a first anti-wear pad is provided in the first arc-shaped groove.
[0009] The beneficial effects of adopting the above-mentioned further solution are that, by setting a second lifting seat, the height of the fuselage bracket can be adjusted to adapt to different operating conditions and alignment requirements; the first arc-shaped groove on the fuselage bracket fits snugly with the shape of the fuselage midsection, increasing the contact area, achieving surface support, distributing the load, and avoiding local pressure damage to the fuselage skin; at the same time, the setting of the first anti-wear pad protects the fuselage skin, preventing damage caused by friction during support, and ensuring the safety and integrity of the aircraft structure; the fuselage bracket is detachably installed on the second lifting seat via the first clamping strip, allowing the fuselage bracket to be quickly replaced according to different aircraft models, improving the system's versatility and flexibility.
[0010] Furthermore, the tail section auxiliary support frame includes a third lifting seat and a tail section bracket. The tail section bracket is detachably mounted on the third lifting seat via a second locking strip. The tail section bracket is provided with a second arc-shaped groove that is adapted to the tail of the aircraft, and a second anti-wear pad is also provided in the second arc-shaped groove.
[0011] The beneficial effects of adopting the above-mentioned further solution are that the third elevator seat makes the tail section support height adjustable, ensuring effective support for the tail under different operating conditions; the second arc-shaped groove on the tail section bracket matches the shape of the aircraft tail, ensuring the fit of the support and preventing the tail from swinging or sinking during loading and unloading; at the same time, the second anti-wear pad protects the fuselage skin, preventing damage caused by friction during support, and ensuring the safety and integrity of the aircraft structure; the tail section bracket is detachably installed on the third elevator seat through the second clamping strip, allowing the fuselage bracket to be quickly replaced according to different aircraft models, improving the system's versatility and flexibility.
[0012] Furthermore, the third lifting seat includes a tripod, a sleeve, a lifting adjustment nut, a handle, a mounting base, and a guide anti-rotation structure. The lower end of the tripod is provided with a support foot and a moving wheel. The sleeve is located at the upper end of the tripod. A lifting screw is inserted through the sleeve. The lifting adjustment nut is sleeved and screwed onto the lifting screw. The handle is fixed to the outside of the lifting adjustment nut. The mounting base is fixed to the top end of the lifting screw. The tail section bracket is mounted on the mounting base. The guide anti-rotation structure includes an axially extending guide groove provided on the outer wall of the lifting screw and a guide block provided on the inner wall of the sleeve and slidingly engaged with the guide groove.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the lifting adjustment nut is set between the sleeve and the mounting base. Rotating the handle drives the lifting adjustment nut to rotate. The sleeve and the mounting base restrict the axial movement of the lifting adjustment nut, thereby driving the lifting screw to rise and fall. This causes the mounting base to move up and down relative to the sleeve. Furthermore, the cooperation between the guide groove and the guide block effectively prevents the lifting screw from rotating during the lifting process, ensuring the linearity and stability of the lifting movement.
[0014] Furthermore, the roller mounting frame is provided with side baffles on both sides to prevent goods from slipping off.
[0015] The beneficial effect of adopting the above-mentioned further solution is that the side baffle can limit the movement of goods during lateral transport, prevent the pallet from slipping off the side, and improve the safety of loading and unloading operations.
[0016] Furthermore, the inner wall of the side baffle is provided with a longitudinally extending guide groove.
[0017] The beneficial effect of adopting the above-mentioned further solution is that the guide groove provided on the inner wall of the side baffle and the edge of the pallet can play a guiding role when the goods move laterally, ensuring that the pallet moves smoothly along the predetermined path.
[0018] Furthermore, the first lifting seat and / or the second lifting seat are scissor lift mechanisms, which include a chassis frame, a scissor assembly, an upper moving frame, and a lifting drive for providing power for the extension and retraction of the scissor assembly. The scissor assembly is supported between the chassis frame and the upper moving frame, and the roller mounting bracket is mounted on the upper moving frame via the lateral movement mechanism.
[0019] The beneficial effects of adopting the above-mentioned further solution are that the scissor lift mechanism has the advantage of smooth operation, can provide reliable height adjustment function, and the lifting drive provides power for the extension and retraction of the scissor assembly, realizing the smooth lifting of the upper moving frame, thereby providing a stable working platform for the roller mounting frame installed on it.
[0020] Furthermore, a set of movable support wheels is installed on the lower part of the chassis frame, and a traction rod is provided on one side of the chassis frame.
[0021] The beneficial effects of adopting the above-mentioned further solutions are that the movable support wheel set enables the entire loading and unloading transport vehicle or the body support frame to be movable, facilitating transfer between different working positions; the tow bar facilitates the movement of the loading and unloading transport vehicle, or facilitates connection with the towing vehicle.
[0022] Furthermore, the lateral movement mechanism includes a lead screw, a nut pair that cooperates with the lead screw, and a lateral drive that drives the lead screw to rotate. The lead screw is mounted on the upper motion frame in a manner that enables it to rotate about an axis, and the nut pair is fixedly connected to the roller mounting frame.
[0023] The beneficial effect of adopting the above-mentioned further solution is that by using a screw and nut transmission pair to achieve lateral movement, the lateral position of the roller mounting frame can be controlled, ensuring smooth docking with the aircraft cargo hold.
[0024] Furthermore, the scissor lift assembly includes a first fork arm and a second fork arm, which are hinged together by a hinge pin. The lower end of the first fork arm is hinged to the chassis frame, and a first roller is mounted on the upper end of the first fork arm. The first roller is installed in a roller groove of the upper moving frame, and the upper end of the first fork arm can move along the upper moving frame. The upper end of the second fork arm is hinged to the upper moving frame, and a second roller is mounted on the lower end of the second fork arm. The second roller is installed in a roller groove of the chassis frame, and the lower end of the second fork arm can move along the chassis frame.
[0025] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects: The loading and unloading transport vehicle of this utility model has lifting and lateral movement functions. It can align the roller mounting frame with the roller system in the aircraft cargo hold through height adjustment and lateral displacement adjustment, realizing the smooth transfer of palletized goods and fine adjustment of the pallet attitude; the dedicated fuselage support frame and tail section auxiliary support frame have support surfaces that match the shape of the fuselage, avoiding fuselage skin pressure damage or structural damage that may be caused by general tools. Through the coordinated cooperation of the fuselage support frame, tail section auxiliary support frame and loading and unloading transport vehicle, it provides stable and reliable all-round support for the aircraft during loading and unloading operations, preventing fuselage attitude instability caused by cargo hold opening and cargo movement. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0027] Figure 1 This is a three-dimensional structural diagram of the loading and unloading transport vehicle of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the loading and unloading transport vehicle of this utility model from another angle; Figure 3 This is a front view of the loading and unloading transport vehicle of this utility model; Figure 4 This is a three-dimensional structural diagram of the fuselage support frame of this utility model; Figure 5 This is a front view of the fuselage support frame of this utility model; Figure 6 This is a three-dimensional structural diagram of the tail section auxiliary support frame of this utility model; Figure 7 This is a front view of the tail section auxiliary support frame of this utility model.
[0028] In the picture: 100. Loading and unloading transport vehicle; 101. Roller mounting bracket; 102. Transverse slide rail; 103. Roller; 104. Side baffle; 107. Traction rod; 108. Moving support wheel set; 109. Lead screw; 110. Nut pair; 111. Transverse drive; 200. Fuselage support frame; 201. Fuselage bracket; 202. First arc-shaped groove; 203. Second lifting seat; 204. Anti-wear pad; 205. First clamping strip; 300. Tail section auxiliary support frame; 301. Tail section bracket; 302. Second arc-shaped groove; 303. Tripod; 304. Sleeve; 305. Lifting adjustment nut; 306. Handle; 307. Mounting base; 308. Guide groove; 309. Support leg; 310. Caster wheel; 311. Second anti-wear pad; 312. Second clamping strip; 400. Scissor lift mechanism; 401. Lifting driver; 402. First fork arm; 403. Second fork arm; 404. Chassis frame; 405. Upper movement frame. Detailed Implementation
[0029] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the objects described and do not imply any priority in order or any specific technical meaning. Furthermore, the concepts of "connection" and "linkage" mentioned in this application, unless otherwise specified, are considered to include both direct connection (linkage) and indirect connection (linkage).
[0030] When interpreting the description of this application, it should be clarified that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating directions or positional relationships, are based on the perspective and layout shown in the accompanying drawings. They are intended to facilitate explanation and simplify the description process, and are not absolute limitations on the actual location, construction method, or operating mode of the described device or element. Therefore, these terms should not be construed as restrictive interpretations of the content of this application.
[0031] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0032] like Figure 1 - Figure 7 As shown, an unmanned transport aircraft cargo loading and unloading system includes a fuselage support frame 200, a tail section auxiliary support frame 300, and a loading and unloading transport vehicle 100. The fuselage support frame 200 supports the middle section of the fuselage; the tail section auxiliary support frame 300 supports the tail section of the fuselage; and the loading and unloading transport vehicle 100 docks with the tail section of the aircraft cargo hold and carries cargo. The loading and unloading transport vehicle 100 includes a first lifting seat, a lateral movement mechanism, and a roller mounting frame 101. A lateral slide rail 102 is provided above the first lifting seat, and the roller mounting frame 101 is slidably mounted on the first lifting seat via the lateral slide rail 102. The lateral movement mechanism can drive the roller mounting frame 101 to move laterally, and the roller mounting frame 101 is provided with at least one row of rollers 103 for conveying cargo.
[0033] The loading and unloading vehicle 100 has lifting and lateral movement functions. Through height adjustment and lateral displacement adjustment, the roller mounting frame 101 can be aligned with the roller system in the aircraft cargo hold, realizing the smooth transfer of palletized goods and fine-tuning the pallet's attitude. The support surfaces of the dedicated fuselage support frame 200 and tail section auxiliary support frame 300 are matched with the fuselage shape, avoiding fuselage skin pressure damage or structural damage that may be caused by general tools. Through the coordinated cooperation of the fuselage support frame 200, tail section auxiliary support frame 300 and loading and unloading vehicle 100, stable and reliable all-round support is provided for the aircraft during loading and unloading operations.
[0034] More specifically, the fuselage support frame 200 includes a second lifting seat 203 and a fuselage bracket 201. The fuselage bracket 201 is detachably mounted on the second lifting seat 203 via a first locking strip 205. The fuselage bracket 201 has a first arc-shaped groove 202 that matches the shape of the middle section of the fuselage. By setting the second lifting seat 203, the height of the fuselage bracket 201 can be adjusted to adapt to different operating conditions and alignment requirements. The first arc-shaped groove 202 on the fuselage bracket 201 fits snugly against the shape of the belly section of the fuselage, increasing the contact area, achieving surface support, distributing the load, and avoiding localized pressure damage to the fuselage skin.
[0035] The tail section auxiliary support frame 300 includes a third lifting seat and a tail section bracket 301 mounted on the third lifting seat. The tail section bracket 301 is provided with a second arc-shaped groove 302 adapted to the tail of the aircraft. The third lifting seat makes the support height of the tail section bracket 301 adjustable, ensuring effective support for the tail under different operating conditions. The second arc-shaped groove 302 on the tail section bracket 301 matches the shape of the tail of the aircraft, ensuring the fit of the support and preventing the tail from swinging or sinking during loading and unloading.
[0036] In this embodiment, the third lifting seat includes a tripod 303, a sleeve 304, a lifting adjustment nut 305, a handle 306, a mounting base 307, and a guide anti-rotation structure. The lower end of the tripod 303 is provided with three support legs 309 and three casters 310. When the support legs 309 are lowered, they can support the tripod 303 and prevent it from moving. When the support legs 309 are raised, the casters 310 contact the ground, making the tripod 303 easy to move. The sleeve 304 is disposed at the upper end of the tripod 303. A lifting screw 109 is inserted inside the sleeve 304. The lifting adjusting nut 305 is sleeved and screwed onto the lifting screw 109. The handle 306 is fixed to the outside of the lifting adjusting nut 305. The mounting base 307 is fixed to the top end of the lifting screw 109. The tail section bracket 301 is detachably mounted on the mounting base 307 via the second clamping strip 312. The guide anti-rotation structure includes an axially extending guide groove 308 disposed on the outer wall of the lifting screw 109 and a guide block disposed on the inner wall of the sleeve 304 and slidingly engaged with the guide groove 308. The lifting adjustment nut 305 is disposed between the sleeve 304 and the mounting base 307. Rotating the handle 306 drives the lifting adjustment nut 305 to rotate. The sleeve 304 and the mounting base 307 restrict the axial movement of the nut, thereby driving the lifting screw 109 to rise and fall. This causes the mounting base 307 to rise and fall relative to the sleeve 304. Furthermore, the cooperation between the guide groove 308 and the guide block effectively prevents the lifting screw 109 from rotating during the lifting process, ensuring the linearity and stability of the lifting movement.
[0037] The roller mounting bracket 101 is provided with side baffles 104 on both sides to prevent goods from slipping, thereby improving the safety of loading and unloading operations. The inner side wall of the side baffle 104 is provided with a longitudinally extending guide groove 308. The guide groove 308 provided on the inner side wall of the side baffle 104 cooperates with the edge of the pallet to guide the goods when they move laterally, ensuring that the pallet moves smoothly along the predetermined path.
[0038] The first lifting seat and / or the second lifting seat 203 are scissor lift mechanisms 400. The first lifting seat and the second lifting seat 203 may use the same lifting mechanism, such as the scissor lift mechanism 400, or they may use different existing lifting mechanisms.
[0039] In this embodiment, both the first lifting seat and the second lifting seat 203 adopt a scissor lift mechanism 400. The scissor lift mechanism 400 includes a chassis frame 404, a scissor assembly, an upper motion frame 405, and a lifting drive 401 for providing power for the extension and retraction of the scissor assembly. The scissor assembly is supported between the chassis frame 404 and the upper motion frame 405. The roller mounting frame 101 is slidably mounted on the upper motion frame 405 via a transverse slide 102. The transverse movement mechanism can drive the roller frame to move along the transverse slide 102. The scissor lift assembly includes a first fork arm 402 and a second fork arm 403, which are hinged together by a hinge shaft. The lower end of the first fork arm 402 is hinged to the chassis frame 404, and a first roller is mounted on the upper end of the first fork arm 402. The first roller is installed in a roller groove of the upper moving frame 405, and the upper end of the first fork arm 402 can move along the upper moving frame 405. The upper end of the second fork arm 403 is hinged to the upper moving frame 405, and a second roller is mounted on the lower end of the second fork arm 403. The second roller is installed in a roller groove of the chassis frame 404, and the lower end of the second fork arm 403 can move along the chassis frame 404. The lifting drive 401 can be a hydraulic cylinder. The cylinder body of the hydraulic cylinder is hinged to the chassis frame 404 and can rotate around the hinge shaft. The piston rod of the hydraulic cylinder is hinged to the scissor lift assembly, and the extension and retraction of the hydraulic cylinder piston rod drives the scissor lift assembly to move.
[0040] The chassis frame 404 is equipped with a movable support wheel set 108 on its lower part, and a drawbar 107 is provided on one side of the chassis frame 404. The movable support wheel set 108 enables the entire loading and unloading transport vehicle 100 or the body support frame 200 to move, facilitating transfer between different working positions; the drawbar 107 facilitates the movement of the loading and unloading transport vehicle 100 or its connection to a towing vehicle.
[0041] The lateral movement mechanism includes a lead screw 109, a nut pair 110 cooperating with the lead screw 109, and a lateral movement driver 111 driving the lead screw 109 to rotate. The lead screw 109 is mounted on the upper motion frame 405 in a manner that allows it to rotate around an axis. The nut pair 110 is fixedly connected to the roller mounting frame 101. The lateral position of the roller mounting frame 101 is controlled by the lead screw 109 nut transmission pair to ensure smooth docking with the aircraft cargo hold. This embodiment does not limit the type of the lateral movement driver 111; the lateral movement driver 111 can be a hand crank or a drive motor.
[0042] The working method of the unmanned transport aircraft cargo loading and unloading system of this utility model is as follows: Move the fuselage support frame 200 to a designated support position below the mid-section of the aircraft fuselage. Operate the second lifting seat 203 to initially align the first arc-shaped groove 202 on the fuselage bracket 201 with the fuselage outline. Move the tail section auxiliary support frame 300 below the tail of the aircraft. Drive its lifting screw 109 by rotating the handle 306 to adjust the height of the tail section bracket 301 so that the second arc-shaped groove 302 initially contacts and aligns with the tail fuselage. Adjust the second lifting seat 203 of the fuselage support frame 200 and the third lifting seat of the tail section auxiliary support frame 300 so that the first arc-shaped groove 202 and the second arc-shaped groove 302 are fully fitted with the aircraft fuselage, jointly supporting the aircraft stably in a stable state. Then, open the tail section of the fuselage to open the cabin. The tail section auxiliary support frame 300 can move synchronously with the opening of the tail section of the fuselage.
[0043] Once the cabin is opened, the loading and unloading vehicle 100 is moved so that the roller mounting bracket 101 is aligned with the opened aircraft cargo door. The lifting driver 401 of the first lifting seat is activated to adjust the height of the roller mounting bracket 101. If fine adjustment is required, the lateral movement driver 111 of the lateral movement mechanism (such as a hand crank or motor) is operated to drive the lead screw 109 to rotate, thereby moving the roller mounting bracket 101, which is fixed to the nut pair 110, laterally until the roller 103 on it is aligned with the cargo hold roller.
[0044] When loading cargo, the pallet containing the cargo is placed on the aligned roller mounting rack 101, and the pallet is then fed into the aircraft cargo hold until it is in place. During this process, the side baffles 104 prevent the pallet from slipping sideways. When unloading cargo, the pallet is smoothly moved from the aircraft cargo hold onto the roller mounting rack 101.
[0045] After loading and unloading of cargo is completed, the tail section of the fuselage is closed to close the cabin. The height of the loading and unloading vehicle 100 is lowered using the first lifting platform to separate it from the aircraft cargo hold. Then, the tail section auxiliary support frame 300 and the fuselage support frame 200 are lowered and removed in sequence to complete all loading and unloading operations.
[0046] The fuselage support frame 200, the tail section auxiliary support frame 300, and the loading and unloading transport vehicle 100 are configured to work together so that after the loading and unloading transport vehicle 100 docks, the loading and unloading of goods is completed by the lateral movement of the roller mounting frame 101, and the fuselage is maintained in a stable posture during the loading and unloading process.
[0047] 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, improvements, etc., 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 cargo loading and unloading system for unmanned transport aircraft, characterized in that, The aircraft includes a fuselage support frame (200), a tail section auxiliary support frame (300), and a loading and unloading transport vehicle (100). The fuselage support frame (200) is used to support the middle section of the fuselage; the tail section auxiliary support frame (300) is used to support the tail section of the fuselage; and the loading and unloading transport vehicle (100) is used to dock with the tail section of the aircraft cargo hold and transport cargo. The loading and unloading transport vehicle (100) includes a first lifting seat, a lateral movement mechanism, and a roller mounting frame (101). A lateral slide (102) is provided above the first lifting seat. The roller mounting frame (101) is slidably mounted on the first lifting seat through the lateral slide (102). The lateral movement mechanism can drive the roller mounting frame (101) to move laterally. The roller mounting frame (101) is provided with at least one row of rollers (103) for conveying cargo.
2. The unmanned transport aircraft cargo loading and unloading system according to claim 1, characterized in that, The fuselage support frame (200) includes a second lifting seat (203) and a fuselage bracket (201). The fuselage bracket (201) is detachably mounted on the second lifting seat (203) via a first clamping strip (205). The fuselage bracket (201) is provided with a first arc-shaped groove (202) that matches the shape of the middle section of the fuselage. A first anti-wear pad (204) is provided in the first arc-shaped groove (202).
3. The unmanned transport aircraft cargo loading and unloading system according to claim 2, characterized in that, The tail section auxiliary support frame (300) includes a third lifting seat and a tail section bracket (301). The tail section bracket (301) is detachably mounted on the third lifting seat by a second mounting strip (312). The tail section bracket (301) is provided with a second arc-shaped groove (302) that is adapted to the tail of the aircraft. A second anti-wear pad (311) is also provided in the second arc-shaped groove (302).
4. The unmanned transport aircraft cargo loading and unloading system according to claim 3, characterized in that, The third lifting seat includes a tripod (303), a sleeve (304), a lifting adjustment nut (305), a handle (306), a mounting base (307), and a guide anti-rotation structure. The lower end of the tripod (303) is provided with a support leg (309) and a moving wheel (310). The sleeve (304) is located at the upper end of the tripod (303). A lifting screw (109) is inserted inside the sleeve (304). The lifting adjustment nut (305) is sleeved on and screwed onto the lifting screw (109). 9) The handle (306) is fixed to the outside of the lifting adjusting nut (305), the mounting base (307) is fixed to the top of the lifting screw (109), the tail section bracket (301) is detachably mounted on the mounting base (307) by a snap-fit strip, and the guide anti-rotation structure includes an axially extending guide groove (308) provided on the outer wall of the lifting screw (109) and a guide block provided on the inner wall of the sleeve (304) and slidingly engaged with the guide groove (308).
5. The unmanned transport aircraft cargo loading and unloading system according to any one of claims 1 to 4, characterized in that, The roller mounting bracket (101) is provided with side baffles (104) on both sides to prevent goods from slipping.
6. The unmanned transport aircraft cargo loading and unloading system according to claim 5, characterized in that, The inner wall of the side baffle (104) is provided with a longitudinally extending guide groove (308).
7. The unmanned transport aircraft cargo loading and unloading system according to claim 2, characterized in that, The first lifting seat and / or the second lifting seat (203) are scissor lift mechanisms (400). The scissor lift mechanism (400) includes a chassis frame (404), a scissor assembly, an upper motion frame (405), and a lifting drive (401) for providing power for the extension and retraction of the scissor assembly. The scissor assembly is supported between the chassis frame (404) and the upper motion frame (405). The roller mounting bracket (101) is mounted on the upper motion frame (405) via the lateral movement mechanism.
8. The unmanned transport aircraft cargo loading and unloading system according to claim 7, characterized in that, The chassis frame (404) is equipped with a movable support wheel set (108) at the lower part, and a traction rod (107) is provided on one side of the chassis frame (404).
9. The unmanned transport aircraft cargo loading and unloading system according to claim 7, characterized in that, The lateral movement mechanism includes a lead screw (109), a nut pair (110) that cooperates with the lead screw (109), and a lateral drive (111) that drives the lead screw (109) to rotate. The lead screw (109) is mounted on the upper motion frame (405) in a manner that allows it to rotate about an axis. The nut pair (110) is fixedly connected to the roller mounting frame (101).
10. The unmanned transport aircraft cargo loading and unloading system according to claim 7, characterized in that, The scissor lift assembly includes a first fork arm (402) and a second fork arm (403). The first fork arm (402) and the second fork arm (403) are hinged together by a hinge shaft. The lower end of the first fork arm (402) is hinged to the chassis frame (404). The upper end of the first fork arm (402) is equipped with a first roller, which is installed in the roller groove of the upper motion frame (405). The upper end of the first fork arm (402) can move along the upper motion frame (405). The upper end of the second fork arm (403) is hinged to the upper motion frame (405). The lower end of the second fork arm (403) is equipped with a second roller, which is installed in the roller groove of the chassis frame (404). The lower end of the second fork arm (403) can move along the chassis frame (404).