Air-public combined container transportation system and method

Abstract

The invention discloses an air-public combined container transportation system and method. The system comprises a combined transportation vehicle, an aviation container pallet, a transfer lifting vehicle and a cabin. The combined transport vehicle, the transshipment lifting vehicle and the cabin are sequentially arranged in parallel, the combined transport vehicle is used for transporting the aviation container pallets to the transshipment lifting vehicle, and the transshipment lifting vehicle is used for lifting the aviation container pallets to the height of the loading surface of the cabin and conveying the aviation container pallets into the cabin; the combined transport vehicle comprises a transport vehicle, a roll-on and roll-off platform and a rotatable roll-on and roll-off platform. The roll-on and roll-off platform and the rotatable roll-on and roll-off platform are mounted on the loading surface of the transport vehicle in parallel; the transshipment lift truck comprises a bottom plate, a first-stage shear fork platform and a second-stage shear fork platform. The first-stage scissor-fork platform and the second-stage scissor-fork platform are mounted on the bottom plate in parallel, and the lifting height of the second-stage scissor-fork platform is larger than that of the first-stage scissor-fork platform; according to the invention, the cargo transfer efficiency can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation container transportation, and in particular relates to an air-road combined container transportation system and method. Background Art

[0002] At present, aviation container transport mainly uses aviation container pallets for containerization and tethering of goods. The special serrated frame of aviation container pallets can quickly and reliably realize the pallet limit with the limit device on the transport aircraft. The facilities and equipment of the aviation transportation system are mature, but the research on combined transportation with mainstream road transportation is still in its infancy. The existing materials need to be stacked and tied when they are transferred from road transport vehicles to the cargo hold of transport aircraft. This process is time-consuming and labor-intensive, and is the key to affecting the efficiency of the entire material transportation chain. Therefore, a system and method suitable for air-road combined transportation is urgently needed. Summary of the invention

[0003] In view of this, the present invention provides an air-road combined container transportation system and method, which can improve the efficiency of cargo transfer.

[0004] The present invention is achieved through the following technical solutions:

[0005] An air-road combined container transportation system, comprising: an intermodal vehicle, an aviation container pallet, a transfer lift and a cabin;

[0006] The intermodal vehicle, the transfer lift and the cabin are arranged in parallel in sequence. The intermodal vehicle is used to transport the aviation container pallet to the transfer lift. The transfer lift is used to lift the aviation container pallet to the height of the loading surface of the cabin and transport the aviation container pallet into the cabin.

[0007] The intermodal vehicle includes: a transport vehicle, a roll-on / roll-off platform and a rotatable roll-on / roll-off platform; the roll-on / roll-off platform and the rotatable roll-on / roll-off platform are installed side by side on the loading surface of the transport vehicle; initially, the aviation container pallet is located on the roll-on / roll-off platform; the roll-on / roll-off platform is used to support the aviation container pallet and roll-on / roll-off transport the aviation container pallet to the rotatable roll-on / roll-off platform, and the rotatable roll-on / roll-off platform is used to roll-on / roll-off transport the aviation container pallet and to adjust the steering of the aviation container pallet;

[0008] The transfer lift truck includes: a base plate, a first-level scissor platform and a second-level scissor platform; the first-level scissor platform and the second-level scissor platform are installed in parallel on the base plate, and the lifting height of the second-level scissor platform is greater than the lifting height of the first-level scissor platform; the first-level scissor platform is used to be lifted to the height of the rotatable roll-on / roll-off platform of the transport vehicle and docked with the rotatable roll-on / roll-off platform; the second-level scissor platform is used to be lifted to the height of the loading surface of the cabin and docked with the loading surface of the cabin.

[0009] Furthermore, the roll-on / roll-off platform and the rotatable roll-on / roll-off platform completely cover the loading surface of the transport vehicle; and the rotatable roll-on / roll-off platform is located at the rear of the transport vehicle;

[0010] The roll-on / roll-off platform comprises: a platform body A, two side limits and a plurality of reversible roller support rails; each reversible roller support rail is provided with a plurality of guide rollers arranged in parallel; the platform body A is a rectangular frame plate; a plurality of reversible roller support rails are installed on the platform body A, so that a plurality of guide rollers are arranged in a matrix on the platform body A, and the axis of each guide roller is arranged along the width direction of the transport vehicle; two side limits are respectively installed on two opposite sides of the platform body A, and the two side limits are arranged along the length direction of the transport vehicle, and are used to guide the aviation container pallet during transportation and loading, prevent the roll-on of the aviation container pallet from being offset, and limit and lock the standard bayonet of the aviation container pallet;

[0011] The rotatable roll-on / roll-off platform comprises: a platform body B and universal rollers; a plurality of the universal rollers are arranged in a matrix and installed on the platform body B; the universal rollers are used to realize the steering and roll-on / roll-off transportation of aviation container pallets.

[0012] Furthermore, the roll-on / roll-off platform also includes: a platform body A, a liftable twist lock and a fixed angle piece;

[0013] The four corners of the lower surface of the platform body A are welded with fixed angle pieces, and the upper surface of the loading surface of the transport vehicle is equipped with a twist lock. The platform body A is installed on the loading surface of the transport vehicle through the cooperation of the fixed angle pieces and the twist lock.

[0014] A plurality of liftable twist locks are installed on the upper surface of the platform body A; and the plurality of liftable twist locks are arranged in two rows on two opposite sides of the platform body A, and the two rows of liftable twist locks are arranged along the length direction of the transport vehicle; the liftable twist locks are used to connect with the interface at the bottom of the aviation container pallet;

[0015] The platform body A is processed with rectangular mounting holes arranged in a matrix, and a plurality of guide rail support sheet metal parts are installed at the bottom of each rectangular mounting hole, and the guide rail support sheet metal parts are welded to the lower surface of the platform body A;

[0016] A plurality of said flip-type roller support guide rails are mounted one by one in the rectangular mounting holes on the platform body A and supported on the guide rail support sheet metal;

[0017] Each of the reversible roller support guide rails includes, in addition to the guide roller, a roller bracket and a locking mechanism;

[0018] A plurality of guide rollers are evenly and parallelly installed on the upper surface of the roller bracket at a set distance, each guide roller is movably connected to the side wall of the roller bracket through a core shaft, and the guide roller can rotate around the axis of the core shaft;

[0019] Two locking mechanisms are installed at both ends of the upper surface of the roller bracket, and each locking mechanism is located between two adjacent guide rollers; the locking mechanism is used to lock the position of the flip-type roller support guide rail installed in the rectangular mounting hole on the platform body A;

[0020] When the guide roller of the reversible roller support rail is required to work, the surface where the guide roller is located faces upward; conversely, the reversible roller support rail is flipped over so that the surface where the guide roller is located faces downward. At this time, the upper surface of the platform body A is a plane, and the flat surface can be used to transport materials.

[0021] Furthermore, each of the locking mechanisms adopts two connecting rod mechanisms symmetrical along the center line of the length direction of the roller bracket, and each connecting rod mechanism includes: a rocker, a slide bar, a spring and a sliding guide rail;

[0022] One end of the rocker is connected to the roller bracket through a pin A, and the axis of the pin A is perpendicular to the upper surface of the roller bracket; the rocker can rotate around the axis of the pin A;

[0023] The cylindrical sliding guide rail is fixed on the inner surface of the side wall of the roller bracket; one end of the sliding rod is pinned to the other end of the rocker through the pin shaft B, and the other end of the sliding rod passes through the sliding guide rail and the side wall of the roller bracket in sequence, and is stuck in the locking hole provided on the inner wall surface of the rectangular mounting hole of the platform body A, so as to realize the locking of the flip-type roller support guide rail in the rectangular mounting hole of the platform body A;

[0024] A spring is provided in the sliding guide rail, which keeps the slide bar always extending out of the side wall of the roller bracket; wherein a limiting boss is processed at the end of the slide bar extending out of the side wall of the roller bracket, so that when the slide bar is pulled inward, the slide bar will not fall out of the sliding guide rail;

[0025] When the guide roller of the flip-over roller support guide rail is required to work, the upper surface of the roller bracket faces upward, and the rocker arm can be driven to open outward under the elastic force of the spring, so that the slide bar extends outward and enters the locking hole of the rectangular mounting hole of the platform body A, thereby locking the flip-over roller support guide rail; when the flip-over roller support guide rail needs to be flipped, the distance between the two rockers is manually reduced so that the rocker arm rotates inward, and after the slide bar is retracted inward, the slide bar is separated from the locking hole of the rectangular mounting hole of the platform body A; then the flip-over roller support guide rail is flipped by manual operation, so that the lower surface of the roller bracket faces upward, the lower surface of the roller bracket is flat, and a flat surface is used to transport materials.

[0026] Furthermore, the two side limits are respectively installed on both sides of the length direction of the platform body A, and the side limits adopt a liftable mechanical structure, and the lift locking of the side guide rail can be realized through manual operation;

[0027] Each of the side limiters comprises: a guide rod, a side guide rail frame, a limit actuator and a spring pin locking mechanism;

[0028] The upper surface of the platform body A is processed with a guide rail installation groove for accommodating the side limit; two guide rods are respectively fixed in the guide rail installation grooves, and the axes of the guide rods are perpendicular to the upper surface of the platform body A;

[0029] The side guide rail frame is installed in the guide rail installation groove, and a slider is provided at each end of the bottom of the side guide rail frame. The two sliders are respectively slidably matched with the two guide rods in a one-to-one correspondence to realize the movement of the side guide rail frame along the axial direction of the guide rod, that is, the lifting and lowering of the side guide rail frame relative to the upper surface of the platform body A;

[0030] The two spring pin locking mechanisms are respectively installed at the two ends of the side guide frame body, and are used to lock the position of the side guide frame body when it is lowered to the limit position; each spring pin locking mechanism includes a compression spring and a positioning pin, and the positioning pin is an L-shaped rod, one end of which extends out of the end face of the side guide frame body under the action of the compression spring, and is inserted into the positioning hole provided on the end face of the guide rail installation groove of the platform body A. The positioning pin can always be in the positioning hole under the action of the compression spring, which can ensure that the side guide frame body will not be bumped and unlocked during transportation; the other end of the positioning pin is a manual operation end;

[0031] A plurality of the limit actuators are installed inside the side guide frame at set intervals; each limit actuator comprises: a limit seat, a linear guide groove, a connecting frame, a lock tongue, a lock tongue connecting rod, a strip head rotating shaft and a nylon roller;

[0032] The linear guide groove is fixed in the side guide rail frame body by bolts, and the connecting frame is slidably matched with the linear guide groove through a nylon roller; wherein the connecting frame and the nylon roller are pin-connected by a roller pin shaft;

[0033] The connecting frame is connected to the limit seat installed in the side guide frame body through the strip head rotating shaft. The number of the limit seats is two. By selecting the limit seats at different positions to connect with the connecting frame, the position adjustment and locking of the connecting frame can be achieved;

[0034] One end of the two lock tongue links is pin-connected to the roller pin on the connecting frame, and the other end is pin-connected to the lock tongue through the lock tongue pin. The two lock tongue links, the connecting frame and the lock tongue form a parallel four-bar linkage mechanism. The lock tongue can be telescopic relative to the side guide frame under the action of the parallel four-bar linkage mechanism. Among them, each roller pin and lock tongue pin are installed with a retaining spring to facilitate the movement and reset of the lock tongue.

[0035] The side limit has multiple limit actuators evenly arranged, and when the lock tongue is extended, it can cooperate with the serrated frames provided on both sides of the bottom of the aviation container pallet.

[0036] Furthermore, the universal rollers in the rotatable roll-on / roll-off platform are Mecanum wheels, and the universal rollers are divided into left-handed and right-handed rollers. The universal rollers can rotate around their own axes when driven by a hydraulic motor.

[0037] Furthermore, the transfer lift vehicle also includes a control console;

[0038] The control panel is open and used to provide an operating space for the operator. The control panel is installed on the bottom plate through a rotary lifting device provided at the bottom. The rotary lifting device is used to realize the up and down lifting and forward and reverse rotation of the control panel.

[0039] The rotary lifting device of the control panel comprises a lower hydraulic lifting device and an upper rotary device, the actuator of the hydraulic lifting device is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is mounted on the cylinder support of the bottom plate, the rotary device is mounted on the end of the piston rod of the hydraulic cylinder, and the telescopic action of the piston rod of the hydraulic cylinder drives the rotary device to lift; the rotary device comprises a base, a hydraulic rotary motor, a reducer and a slewing bearing, the base is mounted on the end of the piston rod of the hydraulic cylinder, the hydraulic rotary motor and the reducer are both mounted in the base, the output shaft of the hydraulic rotary motor is connected to the input end of the reducer, and the output end of the reducer is connected to the bottom of the control panel through the slewing bearing; the telescopic movement of the hydraulic cylinder piston rod can drive the rotary device and the control panel to lift and lower, and the hydraulic rotary motor can drive the control panel to rotate by rotating clockwise or counterclockwise;

[0040] When the transfer lift truck is in operation, the control console is unfolded under the action of the rotating device. When the transfer lift truck is withdrawn, the control console is rotated to above the secondary scissor platform, and the overall width of the transfer lift truck is reduced.

[0041] Furthermore, the base plate includes: a frame, a power system, a steering system and a braking system;

[0042] The vehicle frame comprises a vehicle head and a vehicle body; the vehicle head and the vehicle body are connected in parallel, and the height of the vehicle head is higher than the height of the vehicle body;

[0043] The power system, steering system and brake system are all installed on the frame, the power system is used to drive the frame to travel, the steering system is used to drive the frame to turn, and the brake system is used to brake the frame;

[0044] The base plate is also equipped with a traction joint, which can be connected to the aviation terminal traction vehicle, so that the frame has a short-distance traction and movement function; the base plate is also equipped with a lithium iron phosphate battery pack, which is used to charge the power system, steering system and braking system, so that the base plate can drive autonomously after being separated from the traction of the traction vehicle.

[0045] Furthermore, the first-level scissor platform includes: a main platform and a main platform lifting mechanism, and the second-level scissor platform includes: a bridge platform and a bridge platform lifting mechanism;

[0046] The main platform is installed on the vehicle body through the main platform lifting mechanism, and the bridge platform is installed on the vehicle head through the bridge platform lifting mechanism;

[0047] The main platform lifting mechanism adopts a first-level scissor, chain sprocket, and hydraulic lifting structure to drive the main platform to rise and fall relative to the vehicle body, and the bridge platform lifting mechanism adopts a second-level scissor and hydraulic lifting structure to drive the bridge platform to rise and fall relative to the vehicle head;

[0048] The main platform comprises: a frame 1, a conveying roller, a limit baffle, a conveying table 1 and a grating sensor;

[0049] The frame 1 is a rectangular frame, the conveying table 1 is installed on the inner side of the frame 1, and the four sides of the conveying table 1 are respectively connected to the four sides of the rectangular frame in a one-to-one correspondence; the four groups of conveying rollers are respectively installed on the outer sides of the frame 1;

[0050] There are several universal rollers installed on the conveying table. The aviation container pallet on the conveying table can perform three actions: longitudinal transmission, transverse transmission and horizontal rotation under the action of the universal rollers. The universal rollers are driven by hydraulic motors through chains, and the hydraulic motors are controlled by electromagnetic reversing valves to achieve different transmission directions. The universal rollers use Mecanum wheels.

[0051] A set of limit baffles are arranged around the conveying platform 1 of the main platform. When the aviation container pallet is on or off the main platform, the limit baffles are retracted. When the aviation container pallet is conveyed, the limit baffles are raised manually. Grating sensors are also installed on the left and right sides of the conveying platform 1 to detect the position of the aviation container pallet.

[0052] The bridge platform comprises: a second frame, a second conveying platform, a buffer device and a guardrail;

[0053] The second frame is a rectangular frame, the second conveying platform is installed on the inner side of the second frame, and the four sides of the second conveying platform are connected to the four sides of the rectangular frame one by one;

[0054] The buffer device is a buffer rubber pad installed on the front outer side of the second frame to prevent damage to the equipment when it collides with the aircraft; the guardrail is installed on the outer side of the second frame;

[0055] Several universal rollers are installed on the second conveying platform. The aviation container pallet on the second conveying platform can perform three actions: longitudinal transmission, transverse transmission and horizontal rotation under the action of the universal rollers. The universal rollers are driven by hydraulic motors through chains, and the hydraulic motors are controlled by electromagnetic reversing valves to achieve different transmission directions. The universal rollers use Mecanum wheels.

[0056] The control console is located on the side where the bridge platform is located.

[0057] An air-road combined container transportation method, the specific steps of the method are as follows:

[0058] Step 1: Load the goods onto the aviation pallet;

[0059] Step 2: Roll the aviation container pallet loaded with goods onto the roll-on / roll-off platform of the intermodal vehicle in the long-side direction;

[0060] Step 3: The intermodal vehicle transports the air container pallet loaded with goods to the air terminal;

[0061] Step 4: Park the intermodal vehicle, transfer lift truck, and engine room in parallel order;

[0062] Step 5: Roll the air container pallet loaded with goods from the roll-on / roll-off platform to the rotatable roll-on / roll-off platform. The rotatable roll-on / roll-off platform rotates the air container pallet so that its short side direction is the forward direction of transportation, that is, the short side direction of the air container pallet is perpendicular to the length direction of the transport vehicle;

[0063] Step 6: Move the transfer lift to the rear of the intermodal vehicle, adjust the first-level scissor platform to the same height as the rotatable roll-on / roll-off platform of the intermodal vehicle, and then roll the aviation container pallet loaded with goods onto the first-level scissor platform;

[0064] Step 7: After adjusting the primary scissor platform to the same height as the secondary scissor platform, roll the aviation container pallet loaded with goods onto the secondary scissor platform;

[0065] Step 8: Move the transfer lift to the entrance and exit of the cabin, adjust the height of the secondary scissor platform to make it consistent with the height of the cabin loading surface, roll the aviation container pallet loaded with goods into the cabin, and use the limit device to limit the movement to complete the loading;

[0066] Step 9: Repeat the above steps until all the goods are transferred and loaded into the cabin;

[0067] When the goods need to be transported to a designated location, the delivery of the goods can be achieved by reversing the above steps.

[0068] Beneficial effects:

[0069] (1) The air-road combined container transportation system and method of the present invention applies mature air transportation equipment to road transportation, realizes the commonality of carriers of the two modes of transportation through air container pallets, improves the cargo transfer efficiency of the two modes of transportation, and has great practical value.

[0070] (2) The reversible roller support guide rails, side limiters, liftable twist locks and other devices on the roll-on / roll-off platform of the present invention can be used individually or in combination, and can be used in combination according to actual needs to limit and lock multiple air transport pallets or air containers; and the reversible roller support guide rails, side limiters, liftable twist locks are all flipped or lifted to ensure the flat surface of the loading platform in the non-working state; the platform's purely flat working state meets other usage scenarios.

[0071] (3) The flip-over roller support guide of the present invention can be flipped to hide the roller when it is not in operation; the flip-over roller support guide is fixed in position by an internal locking mechanism; the flip-over roller support guide can realize the flipping and fixing of the roller module by a simple locking mechanism, and the roller module can be flipped to the side where the roller is when loading and unloading goods, and its roller can be hidden when not needed; the structure is compact and highly reliable.

[0072] (4) The side limit of the present invention evenly arranges multiple limit actuators to achieve the extension and retraction of the lock tongue; when the lock tongue is extended, it can cooperate with the serrated frames provided on both sides of the bottom of the aviation container pallet, and the positioning is accurate and the fastening is reliable.

[0073] (5) Universal rollers are installed on the main platform and the bridge platform of the present invention. Mecanum wheels are used. The universal rollers are divided into left-handed and right-handed. The universal rollers can rotate around their own axes under the drive of the hydraulic motor. When the transfer lift truck is docked with the cabin, the rotation direction of the universal rollers on the main platform and the bridge platform can be adjusted to adjust the aviation container pallet to move in six directions: front, back, left, right, clockwise and counterclockwise. After adjusting the position, the aviation container pallet can be controlled to move forward and transported to the cabin, which greatly improves the operating efficiency.

[0074] (6) The transfer lift truck of the present invention integrates lifting, rotating and conveying functions; the transfer lift truck also includes a control panel, and a rotary lifting device is provided at the bottom of the control panel. The control panel has a compact structure and a large rotary torque, which can realize the rotation of the control panel, and is convenient for the operation and withdrawal of the control panel; the control panel is open and has a good operating field of view when in operation. When in the withdrawn state, it is rotated and folded to the top of the secondary scissors platform, and the overall width of the platform is reduced, which reduces the storage space, and has a high space utilization rate. It is safe, practical, reliable and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 It is a composition diagram of the air-road combined container transportation system of the present invention;

[0076] Figure 2 It is a structural schematic diagram of the intermodal vehicle of the present invention;

[0077] Figure 3 A top view of the roll-on / roll-off platform and the rotatable roll-on / roll-off platform of the present invention;

[0078] FIG4 (a) is a front view of the structure of the roll-on / roll-off platform of the present invention, and (b) is a rear view of the structure of the roll-on / roll-off platform of the present invention;

[0079] Figure 5 It is a schematic diagram of a liftable twist lock of the present invention;

[0080] Figure 6 It is a schematic structural diagram of the reversible roller support guide rail of the present invention;

[0081] Figure 7 It is a structural schematic diagram of the locking mechanism of the flippable roller support guide rail of the present invention;

[0082] Figure 8 It is a schematic diagram of the side limit of the present invention;

[0083] Fig. 9 It is a schematic diagram of the structural composition of the side limit of the present invention;

[0084] Fig.10 (a) and Fig.10 (b) is a schematic diagram of the installation of the limit actuator of the present invention in the side limit;

[0085] 11(a) and 11(b) are schematic diagrams of the structural composition of the position limiting actuator of the present invention;

[0086] Fig.12 It is a schematic diagram of the structure of the spring pin locking mechanism of the present invention;

[0087] Fig.13 This is a schematic diagram of the flower mother twist lock of the present invention;

[0088] Fig.14 The structure of the transfer lift vehicle of the present invention is shown in FIG. Figure 1 ;

[0089] Fig.15 The structure of the transfer lift vehicle of the present invention is shown in FIG. Figure 2 ;

[0090] Fig.16 It is a structural schematic diagram of the rotary lifting device of the present invention;

[0091] Among them, 1-intermodal vehicle; 2-cargo; 3-air container pallet; 4-transfer lift; 5-cabin; 11-transport vehicle; 12-roll-on / roll-off platform; 13-rotatable roll-on / roll-off platform; 14-fixed angle piece; 15-platform body A; 17-sliding guide rail; 18-roller bracket; 19-rocker; 20-slide bar; 21-U-shaped support; 22-side guide frame; 23-limit actuator; 24-spring pin locking mechanism; 25-limit seat; 41-first-level scissor platform; 42-second-level scissor platform; 121-side limit; 122-guide roller; 123-reversible roller support guide rail; 124-liftable twist lock; 231-linear guide groove; 232-connecting frame; 233-lock tongue; 234 -lock tongue connecting rod; 235-bar head rotating shaft; 236 nylon roller; 237-roller pin; 238-lock tongue pin; 239-circlip; 101-bottom plate; 1011-frame; 1012-traction joint; 1021-main platform; 211-frame one; 212-conveying roller; 213-limit baffle; 214-conveying table one; 1022-bridge platform; 221-frame two; 222-conveying table two; 223-buffer device; 224-guardrail; 103-main platform lifting mechanism; 104-bridge platform lifting mechanism; 105-control panel; 106-slewing lifting device; 61-hydraulic cylinder; 62-base; 63-hydraulic slewing motor; 64-reducer; 65-slewing bearing. DETAILED DESCRIPTION

[0092] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0093] Embodiment 1:

[0094] This embodiment provides an air-road combined container transportation system. Figure 1 , including: intermodal vehicle 1, aviation container pallet 3, transfer lift vehicle 4 and cabin 5;

[0095] The intermodal vehicle 1, the transfer lift 4 and the cabin 5 are arranged in parallel in sequence. The intermodal vehicle 1 is used to transport the aviation container pallet 3 to the transfer lift 4. The transfer lift 4 is used to lift the aviation container pallet 3 to the height of the loading surface of the cabin 5 and transport the aviation container pallet 3 into the cabin 5.

[0096] Among them, see Appendix Figure 2The intermodal vehicle 1 comprises: a transport vehicle 11, a roll-on / roll-off platform 12 and a rotatable roll-on / roll-off platform 13; the transport vehicle 11 may be a semitrailer or a flatbed vehicle; the roll-on / roll-off platform 12 and the rotatable roll-on / roll-off platform 13 are installed in parallel on the loading surface of the transport vehicle 11, and the rotatable roll-on / roll-off platform 13 is located at the rear of the transport vehicle 11; the roll-on / roll-off platform 12 and the rotatable roll-on / roll-off platform 13 completely cover the loading surface of the transport vehicle 11; initially, the aviation container pallet 3 is located on the roll-on / roll-off platform 12; the roll-on / roll-off platform 12 is used to support the aviation container pallet 3 and roll-on / roll-off transport the aviation container pallet 3 to the rotatable roll-on / roll-off platform 13, and the rotatable roll-on / roll-off platform 13 is used to roll-on / roll-off transport the aviation container pallet 3 and to adjust the steering of the aviation container pallet 3;

[0097] See attached Figure 3 The roll-on / roll-off platform 12 comprises: a platform body A15, two side limits 121 and a plurality of reversible roller support rails 123; each reversible roller support rail 123 is provided with a plurality of guide rollers 122 arranged in parallel; the platform body A15 is a rectangular frame plate; a plurality of reversible roller support rails 123 are installed on the platform body A15, so that a plurality of guide rollers 122 are arranged in a matrix on the platform body A15, and the axis of each guide roller 122 is arranged along the width direction of the transport vehicle 11; two side limits 121 are respectively installed on two opposite sides of the platform body A15, and the two side limits 121 are arranged along the length direction of the transport vehicle 11, and are used to guide the aviation container pallet 3 during transportation and loading, prevent the rolling of the aviation container pallet 3 from being offset, and limit and lock the standard bayonet of the aviation container pallet 3;

[0098] The rotatable roll-on / roll-off platform 13 comprises: a platform body B and universal rollers; a plurality of the universal rollers are arranged in a matrix and installed on the platform body B; the universal rollers are used to realize the steering and roll-on / roll-off transportation of the aviation container pallet 3;

[0099] The transfer lift vehicle 4 includes: a base plate 101, a first-level scissor platform 41 and a second-level scissor platform 42; the first-level scissor platform 41 and the second-level scissor platform 42 are installed in parallel on the base plate 101, and the first-level scissor platform 41 can achieve a loading height lower than 400 mm; the lifting height of the second-level scissor platform 42 is greater than the lifting height of the first-level scissor platform 41; and the first-level scissor platform 41 is used to be lifted to the height of the rotatable roll-on / roll-off platform 13 of the transport vehicle 11, and docked with the rotatable roll-on / roll-off platform 13; the second-level scissor platform 42 is used to be lifted to the height of the loading surface of the cabin 5, and docked with the loading surface of the cabin 5.

[0100] Embodiment 2:

[0101] This embodiment provides a specific structure of a roll-on / roll-off platform 12 based on the embodiment 1. Referring to FIG. 4 , the roll-on / roll-off platform 12 further includes: a platform body A15, a liftable twist lock 124, a fixed angle piece 14 and a central guide rail;

[0102] The four corners of the lower surface of the platform body A15 are welded with fixed angle pieces 14, and the upper surface of the loading surface of the transport vehicle 11 is equipped with a flower mother twist lock. The structure of the flower mother twist lock is as follows: Fig.13 As shown, the platform body A15 is installed on the loading surface of the transport vehicle 11 through the cooperation of the fixed angle piece 14 and the flower mother twist lock. Through the connection mode of the fixed angle piece 14 and the flower mother twist lock, the platform body A15 can realize modular disassembly and assembly on the loading surface of the transport vehicle 11;

[0103] The upper surface of the platform body A15 is provided with a plurality of liftable twist locks 124. The structure of the liftable twist locks 124 is as follows: Figure 5 As shown; and a plurality of liftable twist locks 124 are arranged in two rows on opposite sides of the platform body A15, and the two rows of liftable twist locks 124 are arranged along the length direction of the transport vehicle 11; the liftable twist locks are used to connect to the interface at the bottom of the aviation container pallet 3;

[0104] The platform body A15 is processed with rectangular mounting holes arranged in a matrix, and a plurality of guide rail support sheet metal parts are installed at the bottom of each rectangular mounting hole, and the guide rail support sheet metal parts are welded to the lower surface of the platform body A15;

[0105] A plurality of the reversible roller support rails 123 are mounted one by one in the rectangular mounting holes on the platform body A15 and supported on the rail support sheet metal;

[0106] See attached Figure 6 Each of the reversible roller support rails 123 includes, in addition to the guide roller 122, a roller bracket 18 and a locking mechanism;

[0107] A plurality of guide rollers 122 are evenly arranged in parallel at a set distance on the upper surface of the roller bracket 18, each guide roller 122 is movably connected to the side wall of the roller bracket 18 through a core shaft, and the guide roller 122 can rotate around the axis of the core shaft; the number of guide rollers 122 in this embodiment is five, each guide roller 122 has a diameter of 51 mm, and the tube skin and the core shaft of the guide roller 122 are made of high-strength stainless steel, and a single guide roller 122 can carry a load of not less than 320 kg; the tube skin side of the guide roller 122 is fastened with screws, and in order to prevent installation interference problems, the tube skin of the guide roller 122 is fixed with a countersunk groove when it is installed;

[0108] Two locking mechanisms are installed at both ends of the upper surface of the roller bracket 18, and each locking mechanism is located between two adjacent guide rollers 122; see the attached Figure 7 Each of the locking mechanisms adopts two connecting rod mechanisms symmetrical along the center line of the length direction of the roller bracket 18, and each connecting rod mechanism includes: a rocker 19, a slide bar 20, a spring and a sliding guide rail 17;

[0109] One end of the rocker 19 is connected to the roller bracket 18 through a pin A, and the axis of the pin A is perpendicular to the upper surface of the roller bracket 18; the rocker 19 can rotate around the axis of the pin A;

[0110] The cylindrical sliding guide rail 17 is fixed to the inner surface of the side wall of the roller bracket 18; one end of the sliding rod 20 is pinned to the other end of the rocker 19 through the pin shaft B, and the other end of the sliding rod 20 passes through the sliding guide rail 17 and the side wall of the roller bracket 18 in turn, and is stuck in the locking hole provided on the inner wall surface of the rectangular mounting hole of the platform body A15, so as to realize the locking of the flip-type roller support guide rail 123 in the rectangular mounting hole of the platform body A15;

[0111] A spring is provided in the sliding guide rail 17, which keeps the slide bar 20 always extending out of the side wall of the roller bracket 18; wherein, a limiting boss is processed at the end of the slide bar 20 extending out of the side wall of the roller bracket 18, so that when the slide bar 20 is pulled inward, the slide bar 20 will not fall out of the sliding guide rail 17;

[0112] When the guide roller 122 of the reversible roller support guide rail 123 is required to work, the upper surface of the roller bracket 18 faces upward, and the rocker 19 can be driven to open outward under the elastic force of the spring, so that the slide bar 20 extends outward and enters the locking hole of the rectangular mounting hole of the platform body A15, thereby locking the reversible roller support guide rail 123; when the reversible roller support guide rail 123 needs to be flipped, the distance between the two rockers 19 is manually reduced, so that the rocker 19 rotates inward, and after the slide bar 20 is retracted inward, the slide bar 20 is separated from the locking hole of the rectangular mounting hole of the platform body A15; then the reversible roller support guide rail 123 is flipped by manual operation, so that the lower surface of the roller bracket 18 faces upward, and the lower surface of the roller bracket 18 is a plane, which can ensure that a flat surface is used to transport other materials;

[0113] Furthermore, a U-shaped support 21 is provided at the connection between the core shaft of the guide roller 122 and the side wall of the roller bracket 18. The U-shaped support 21 is welded to the side wall of the roller bracket 18. The U-shaped support 21 strengthens the strength of the side wall and has better load-bearing characteristics. The opening of the U-shaped support 21 faces upward, and the opening of the U-shaped support 21 cooperates with the core shaft of the guide roller 122 to achieve precise positioning, that is, the guide roller 122 can be positioned and installed using the U-shaped support 21.

[0114] Furthermore, both ends of the roller bracket 18 are provided with hand ports that can be used for transportation, and the four hand ports are respectively located below the four rockers 19;

[0115] The central guide rail is detachably mounted on the upper surface of the platform body A15; a plurality of central guide rail connection holes are provided on the upper surface of the platform body A15. When the central guide rail is required to work, the central guide rail can be quickly assembled on the upper surface of the platform body A15 through the central guide rail connection holes to guide the cargo delivery series containers suitable for the central guide rail;

[0116] See attached Figure 8 The two side limits 121 are respectively installed on both sides of the length direction of the platform body A15. The side limits 121 adopt a liftable mechanical structure, and the lift locking of the side guide rail can be realized through manual operation;

[0117] See attached Fig. 9 Each of the side limiters 121 includes: a guide rod 26, a side guide frame 22, a limit actuator 23 and a spring pin locking mechanism 24;

[0118] The upper surface of the platform body A15 is processed with a guide rail installation groove for accommodating the side limiter 121; two guide rods 26 are respectively fixed in the guide rail installation grooves, and the axis of the guide rod 26 is perpendicular to the upper surface of the platform body A15;

[0119] The side guide rail frame 22 is installed in the guide rail installation groove, and a slider is provided at each end of the bottom of the side guide rail frame 22. The two sliders are respectively slidably matched with the two guide rods 26 to realize the movement of the side guide rail frame 22 along the axial direction of the guide rod 26, that is, the lifting and lowering of the side guide rail frame 22 relative to the upper surface of the platform body A15;

[0120] The two spring pin locking mechanisms 24 are respectively installed at the two ends of the side rail frame 22, and are used to lock the position of the side rail frame 22 when it descends to the limit position; see the attached Fig.12 , each spring pin locking mechanism 24 includes a compression spring and a positioning pin. The positioning pin is an L-shaped rod, one end of which extends out of the end face of the side guide frame 22 under the action of the compression spring, and is inserted into the positioning hole provided on the end face of the guide rail mounting groove of the platform body A15. The positioning pin can always be in the positioning hole under the action of the compression spring, which can ensure that the side guide frame 22 will not be bumped and unlocked during transportation; the other end of the positioning pin is a manual operation end, and the L-shaped structure of the positioning pin is convenient for operation. When it is necessary to raise the side guide frame 22, the positioning pin is manually pulled to disengage the positioning pin from the positioning hole, thereby unlocking the side guide frame 22, so as to subsequently lift and lower the side guide frame 22; wherein, an operating hole and a handle groove are processed at the corresponding position of the manual operation end of the L-shaped rod of the platform body A15, which is convenient for the staff to unlock and lift the side guide rails;

[0121] A plurality of the limit actuators 23 are installed inside the side guide frame 22 at set intervals; see the attached Figure 10-Figure 1 1. Each limit actuator 23 includes: a limit seat 25, a linear guide groove 231, a connecting frame 232, a lock tongue 233, a lock tongue connecting rod 234, a strip head rotating shaft 235 and a nylon roller 236;

[0122] The linear guide groove 231 is fixed in the side guide frame 22 by bolts, and the connecting frame 232 is slidably matched with the linear guide groove 231 through the nylon roller 236; wherein the connecting frame 232 and the nylon roller 236 are pin-connected by the roller pin 237;

[0123] The connecting frame 232 is connected to the limiting seat 25 installed in the side guide frame body 22 through the strip head rotating shaft 235. There are two limiting seats 25. By selecting the limiting seats 25 at different positions to connect with the connecting frame 232, the position adjustment and locking of the connecting frame 232 can be achieved.

[0124] One end of the two lock tongue links 234 is pin-connected to the roller pin 237 on the connecting frame 232, and the other end is pin-connected to the lock tongue 233 through the lock tongue pin 238. The two lock tongue links 234, the connecting frame 232 and the lock tongue 233 form a parallel four-bar linkage mechanism. Under the action of the parallel four-bar linkage mechanism, the lock tongue 233 can perform telescopic movements relative to the side guide frame 22; wherein, each roller pin 237 and the lock tongue pin 238 are installed with a retaining spring 239 to facilitate the movement and reset of the lock tongue 233;

[0125] The side limit 121 evenly arranges multiple limit actuators 23 to realize the extension and retraction of the lock tongue 233. The limit seat 25 is a fixed position, thereby realizing the extension (locking) and retraction (unlocking) working states of the limit actuator 23 (lock tongue 233); when the lock tongue 233 is extended, it can cooperate with the serrated frames provided on both sides of the bottom of the aviation container pallet 3, and the positioning is accurate and the fastening is reliable.

[0126] Embodiment 3:

[0127] Based on Example 1, this embodiment provides a specific structure of a rotatable roll-on / roll-off platform 13, wherein the universal roller adopts a Mecanum wheel, and the universal roller is divided into left-handed and right-handed. The universal roller can rotate around its own axis under the drive of a hydraulic motor; the platform body B is divided into four areas, namely, area 1, area 2, area 3, and area 4, according to the quadrant, with a total of four areas, each area is composed of 16 universal rollers, and the four areas have a total of 64 universal rollers; the rotation directions of the universal rollers in the four areas are relatively arranged, the rotation directions of the universal rollers in areas 1 and 3 are all left-handed, and the rotation directions of the universal rollers in areas 2 and 4 are all right-handed. Driven by the hydraulic motor, the universal rollers in the four areas can rotate in forward and reverse directions respectively, and according to the different rotation direction combinations of the four areas, the aviation container pallet 3 can realize the movement of six directions: front, back, left, right, clockwise and counterclockwise.

[0128] Embodiment 4:

[0129] This embodiment provides a specific structure of a transfer lift vehicle 4 based on the embodiment 1, see the attached Figure 14-15 , the transfer lift vehicle 4 further includes: a control console 105;

[0130] The control panel 105 is open and is used to provide an operating space for the operator. The control panel 105 is installed on the bottom plate 101 through a rotary lifting device 106 provided at the bottom. The rotary lifting device 106 is used to realize the up and down lifting, forward and reverse rotation and other actions of the control panel 105;

[0131] The base plate 101 includes: a frame 1011, a power system, a steering system and a braking system;

[0132] The main structure of the frame 1011 is welded with steel sections, and the frame 1011 includes a front and a body; the front and the body are connected in parallel, and the height of the front is higher than the height of the body; the bottom of the front is equipped with a universal military tire, which can rotate arbitrarily, and the bottom of the body is equipped with a solid rubber wheel; a plurality of lifting legs are installed at the bottom of the frame 1011, and the lifting legs can bear part of the weight when they are on the ground;

[0133] The power system, steering system and brake system are all installed on the frame 1011. The power system is used to drive the frame 1011 to travel, the steering system is used to drive the frame 1011 to steer, and the brake system is used to brake the frame 1011. The power system, steering system and brake system are all existing technologies, and the specific structures are not described in detail.

[0134] The base plate 101 is also equipped with a traction joint 1012, which can be connected to the aviation terminal traction vehicle, so that the frame 1011 has a short-distance traction movement function; the base plate 101 is also equipped with a lithium iron phosphate battery pack, which is used to charge the power system, steering system and braking system, has a fast charging function, has a continuous endurance of 1 hour, and can store large-scale electric energy, so that the base plate 101 can travel autonomously after being separated from the traction of the traction vehicle;

[0135] The first-level scissor platform 41 includes: a main platform 1021 and a main platform lifting mechanism 103, and the second-level scissor platform 42 includes: a bridge platform 1022 and a bridge platform lifting mechanism 104;

[0136] The main platform 1021 is installed on the vehicle body through the main platform lifting mechanism 103, and the bridge platform 1022 is installed on the vehicle head through the bridge platform lifting mechanism 104;

[0137] The main platform lifting mechanism 103 adopts a first-level scissor, chain sprocket, and hydraulic lifting structure to drive the main platform 1021 to rise and fall relative to the vehicle body, and the bridge platform lifting mechanism 104 adopts a second-level scissor and hydraulic lifting structure to drive the bridge platform 1022 to rise and fall relative to the front of the vehicle; the main platform lifting mechanism 103 and the bridge platform lifting mechanism 104 are both existing technologies, and the specific structures are not repeated here;

[0138] The main platform 1021 includes: a frame 211, a conveying roller 212, a limit baffle 213, a conveying table 214 and a grating sensor;

[0139] The frame 211 is a rectangular frame, and the conveying table 214 is installed on the inner side of the frame 211, and the four sides of the conveying table 214 are connected to the four sides of the rectangular frame one by one; four groups of conveying rollers 212 are respectively installed on the outer sides of the frame 211; the four groups of conveying rollers 212 are lifted and lowered together with the main platform 1021, so that the aviation container pallet 3 can be transferred from the general transport vehicle or the airport transfer trailer to the main platform 1021 for transportation, which can reduce friction and improve transportation efficiency; when the main platform 1021 is at the lowest position or a certain height, three groups of conveying rollers 212 allow the aviation container pallet 3 to slide into or out of the main platform 1021 from the left side, right side, and rear of the main platform 1021, and another group of conveying rollers 212 allows the aviation container pallet 3 to slide from the front of the main platform 1021 to the bridge platform 1022;

[0140] A plurality of universal rollers are installed on the conveying table 214. The aviation container pallet 3 on the conveying table 214 can perform three actions of longitudinal transmission, transverse transmission and horizontal rotation under the action of the universal rollers. The universal rollers are driven by a hydraulic motor through a chain, and the steering of the hydraulic motor is controlled by an electromagnetic reversing valve to realize different transmission directions.

[0141] The universal roller adopts Mecanum wheel, and the universal roller is divided into left-handed and right-handed. The universal roller can rotate around its own axis under the drive of hydraulic motor; the conveying table 214 is divided into four areas, namely, area 1, area 2, area 3 and area 4 according to quadrants, with a total of four areas. Each area is composed of 16 universal rollers, and the four areas have a total of 64 universal rollers; the rotation directions of the universal rollers in the four areas are relatively arranged, the rotation directions of the universal rollers in areas 1 and 3 are all left-handed, and the rotation directions of the universal rollers in areas 2 and 4 are all right-handed. Driven by the hydraulic motor, the universal rollers in the four areas can rotate in forward and reverse directions respectively. According to the different rotation direction combinations of the four areas, the aviation container pallet 3 can realize the movement of six directions: front, back, left, right, clockwise and counterclockwise;

[0142] A group of limit baffles 213 are provided around the conveying table 214 of the main platform 1021. When the aviation container pallet 3 is moved up and down the main platform 1021, the limit baffles 213 are retracted. When the aviation container pallet 3 is conveyed, the limit baffles 213 are raised manually. The limit baffles 213 can play a guiding role to avoid transmission errors. Grating sensors are also installed on the left and right sides of the conveying table 214 to detect the position of the aviation container pallet 3. If the aviation container pallet 3 is not in the correct position on the main platform 1021, the universal roller on the main platform 1021 is driven by controlling the corresponding hydraulic motor to move, so that the goods are rotated to the correct position on the main platform 1021, thereby completing the correct positioning of the aviation container pallet 3.

[0143] The bridge platform 1022 includes: a second frame 221, a second conveying platform 222, a buffer device 223 and a guardrail 224;

[0144] The second frame 221 is a rectangular frame, the second conveying platform 222 is installed on the inner side of the second frame 221, and the four sides of the second conveying platform 222 are respectively connected to the four sides of the rectangular frame in a one-to-one correspondence;

[0145] The buffer device 223 is a buffer rubber pad installed on the front outer side of the second frame 221 to prevent damage to the equipment when it collides with the aircraft; the guardrail 224 is installed on the outer side of the second frame 221;

[0146] A plurality of universal rollers are installed on the second conveying table 222. The aviation container pallet 3 on the second conveying table 222 can perform three actions of longitudinal transmission, transverse transmission and horizontal rotation under the action of the universal rollers. The universal rollers are driven by a hydraulic motor through a chain, and the hydraulic motor is controlled by an electromagnetic reversing valve to realize different transmission directions. The specific structure is the same as that of the conveying table 1 214.

[0147] The control console 105 is located on the side where the bridge platform 1022 is located. Fig.16 The rotary lifting device 106 of the control console 105 includes a lower hydraulic lifting device and an upper rotary device. The actuator of the hydraulic lifting device is a hydraulic cylinder 61. The cylinder body of the hydraulic cylinder 61 is installed on the cylinder support of the base plate 101. The rotary device is installed at the end of the piston rod of the hydraulic cylinder 61. The telescopic action of the piston rod of the hydraulic cylinder 61 drives the rotary device to rise and fall; the rotary device includes a base 62, a hydraulic rotary motor 63, a reducer 64 and a rotary bearing 65. The base 62 is installed at the end of the piston rod of the hydraulic cylinder 61. The hydraulic rotary motor The hydraulic cylinder 61 and the reducer 64 are both installed in the base 62. The output shaft of the hydraulic rotary motor 63 is connected to the input end of the reducer 64. The output end of the reducer 64 is connected to the bottom of the control console 105 through the slewing bearing 65. The transmission route of the slewing motion of the control console 105 is: hydraulic rotary motor (hydraulic energy is converted into mechanical energy) - reducer - slewing bearing - realize slewing; the piston rod of the hydraulic cylinder 61 can be extended and retracted to drive the slewing device and the control console 105 to rise and fall, and the hydraulic rotary motor 63 can rotate clockwise or counterclockwise to drive the control console 105 to rotate;

[0148] When the transfer lift 4 is in operation, the control console 105 is unfolded under the action of the rotating device. When the transfer lift 4 is withdrawn, the control console 105 is rotated above the bridge platform 1022, and the overall width of the transfer lift is reduced. After the transfer lift 4 is docked with the cabin 5, by adjusting the rotation direction of the universal rollers on the main platform 1021 and the bridge platform 1022, the aviation container pallet 3 can be adjusted to move in six directions: front, back, left, right, clockwise and counterclockwise. After adjusting the position, the aviation container pallet 3 is controlled to move forward and transported to the cabin 5, which greatly improves the operating efficiency.

[0149] Embodiment 5:

[0150] This embodiment provides an air-road combined container transportation method, which is implemented based on the transportation system of Embodiment 1. The specific steps of the method are as follows:

[0151] Step 1: Load the cargo 2 onto the aviation container pallet 3;

[0152] Step 2: Roll the aviation container pallet 3 loaded with the goods 2 into the roll-on / roll-off platform 12 of the intermodal vehicle 1 in the long side direction (i.e., the long side direction of the aviation container pallet 3 is perpendicular to the length direction of the transport vehicle 11);

[0153] Step 3: The intermodal vehicle 1 transports the air container pallet 3 loaded with the goods 2 to the air terminal;

[0154] Step 4: Park the intermodal vehicle 1, the transfer lift vehicle 4, and the engine room 5 in parallel order. Figure 1 As shown;

[0155] Step 5: Roll the aviation container pallet 3 loaded with the goods 2 from the roll-on / roll-off platform 12 to the rotatable roll-on / roll-off platform 13. The rotatable roll-on / roll-off platform 13 rotates the aviation container pallet 3 so that its short side direction is used as the forward direction of transportation, that is, the short side direction of the aviation container pallet 3 is perpendicular to the length direction of the transport vehicle 11;

[0156] Step 6: Move the transfer lift 4 to the rear of the intermodal vehicle 1, adjust the primary scissor platform 41 to the same height as the rotatable roll-on / roll-off platform 13 of the intermodal vehicle 1, and then roll the air container pallet 3 loaded with the goods 2 onto the primary scissor platform 41;

[0157] Step 7: After adjusting the primary scissor platform 41 to the same height as the secondary scissor platform 42, roll the aviation container pallet 3 loaded with the cargo 2 onto the secondary scissor platform 42;

[0158] Step 8: Move the transfer lift 4 to the entrance and exit of the cabin 5, adjust the height of the secondary scissor platform 42 to make it consistent with the height of the loading surface of the cabin 5, roll the aviation container pallet 3 loaded with the goods 2 into the cabin 5, and use the limit device to limit the movement to complete the loading;

[0159] Step nine, repeat the above steps until all the cargo 2 is transferred and loaded into the cabin 5.

[0160] When the goods 2 need to be transported to a designated location, the delivery of the goods 2 can be achieved by performing the reverse operation of the above steps.

[0161] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air-road combined container transportation system, characterized in that: include: Intermodal vehicles, aviation container pallets, transfer lifts and engine rooms; The intermodal vehicle, the transfer lift and the cabin are arranged in parallel in sequence. The intermodal vehicle is used to transport the aviation container pallet to the transfer lift. The transfer lift is used to lift the aviation container pallet to the height of the loading surface of the cabin and transport the aviation container pallet into the cabin. The intermodal vehicle includes: a transport vehicle, a roll-on / roll-off platform and a rotatable roll-on / roll-off platform; the roll-on / roll-off platform and the rotatable roll-on / roll-off platform are installed side by side on the loading surface of the transport vehicle; initially, the aviation container pallet is located on the roll-on / roll-off platform; the roll-on / roll-off platform is used to support the aviation container pallet and roll-on / roll-off transport the aviation container pallet to the rotatable roll-on / roll-off platform, and the rotatable roll-on / roll-off platform is used to roll-on / roll-off transport the aviation container pallet and to adjust the steering of the aviation container pallet; The transfer lift truck includes: a base plate, a first-level scissor platform and a second-level scissor platform; the first-level scissor platform and the second-level scissor platform are installed in parallel on the base plate, and the lifting height of the second-level scissor platform is greater than the lifting height of the first-level scissor platform; the first-level scissor platform is used to be lifted to the height of the rotatable roll-on / roll-off platform of the transport vehicle and docked with the rotatable roll-on / roll-off platform; the second-level scissor platform is used to be lifted to the height of the loading surface of the cabin and docked with the loading surface of the cabin.

2. The air-road combined container transportation system according to claim 1, characterized in that: The roll-on / roll-off platform and the rotatable roll-on / roll-off platform completely cover the loading surface of the transport vehicle; and the rotatable roll-on / roll-off platform is located at the rear of the transport vehicle; The roll-on / roll-off platform comprises: a platform body A, two side limits and a plurality of reversible roller support rails; each reversible roller support rail is provided with a plurality of guide rollers arranged in parallel; the platform body A is a rectangular frame plate; a plurality of reversible roller support rails are installed on the platform body A, so that a plurality of guide rollers are arranged in a matrix on the platform body A, and the axis of each guide roller is arranged along the width direction of the transport vehicle; two side limits are respectively installed on two opposite sides of the platform body A, and the two side limits are arranged along the length direction of the transport vehicle, and are used to guide the aviation container pallet during transportation and loading, prevent the roll-on of the aviation container pallet from being offset, and limit and lock the standard bayonet of the aviation container pallet; The rotatable roll-on / roll-off platform comprises: a platform body B and universal rollers; a plurality of the universal rollers are arranged in a matrix and installed on the platform body B; the universal rollers are used to realize the steering and roll-on / roll-off transportation of aviation container pallets.

3. The air-road combined container transportation system according to claim 2, characterized in that: The roll-on / roll-off platform also includes: a platform body A, a liftable twist lock and a fixed angle piece; The four corners of the lower surface of the platform body A are welded with fixed angle pieces, and the upper surface of the loading surface of the transport vehicle is equipped with a twist lock. The platform body A is installed on the loading surface of the transport vehicle through the cooperation of the fixed angle pieces and the twist lock. A plurality of liftable twist locks are installed on the upper surface of the platform body A; and the plurality of liftable twist locks are arranged in two rows on two opposite sides of the platform body A, and the two rows of liftable twist locks are arranged along the length direction of the transport vehicle; the liftable twist locks are used to connect with the interface at the bottom of the aviation container pallet; The platform body A is processed with rectangular mounting holes arranged in a matrix, and a plurality of guide rail support sheet metal parts are installed at the bottom of each rectangular mounting hole, and the guide rail support sheet metal parts are welded to the lower surface of the platform body A; A plurality of said flip-type roller support guide rails are mounted one by one in the rectangular mounting holes on the platform body A and supported on the guide rail support sheet metal; Each of the reversible roller support guide rails includes, in addition to the guide roller, a roller bracket and a locking mechanism; A plurality of guide rollers are evenly and parallelly installed on the upper surface of the roller bracket at a set distance, each guide roller is movably connected to the side wall of the roller bracket through a core shaft, and the guide roller can rotate around the axis of the core shaft; Two locking mechanisms are installed at both ends of the upper surface of the roller bracket, and each locking mechanism is located between two adjacent guide rollers; the locking mechanism is used to lock the position of the flip-type roller support guide rail installed in the rectangular mounting hole on the platform body A; When the guide roller of the reversible roller support rail is required to work, the surface where the guide roller is located faces upward; conversely, the reversible roller support rail is flipped over so that the surface where the guide roller is located faces downward. At this time, the upper surface of the platform body A is a plane, and the flat surface can be used to transport materials.

4. The air-road combined container transportation system according to claim 3, characterized in that: Each of the locking mechanisms adopts two connecting rod mechanisms symmetrical along the center line of the length direction of the roller bracket, and each connecting rod mechanism includes: a rocker, a slide bar, a spring and a sliding guide rail; One end of the rocker is connected to the roller bracket through a pin A, and the axis of the pin A is perpendicular to the upper surface of the roller bracket; the rocker can rotate around the axis of the pin A; The cylindrical sliding guide rail is fixed on the inner surface of the side wall of the roller bracket; one end of the sliding rod is pinned to the other end of the rocker through the pin shaft B, and the other end of the sliding rod passes through the sliding guide rail and the side wall of the roller bracket in sequence, and is stuck in the locking hole provided on the inner wall surface of the rectangular mounting hole of the platform body A, so as to realize the locking of the flip-type roller support guide rail in the rectangular mounting hole of the platform body A; A spring is provided in the sliding guide rail, which keeps the slide bar always extending out of the side wall of the roller bracket; wherein a limiting boss is processed at the end of the slide bar extending out of the side wall of the roller bracket, so that when the slide bar is pulled inward, the slide bar will not fall out of the sliding guide rail; When the guide roller of the flip-over roller support guide rail is required to work, the upper surface of the roller bracket faces upward, and the rocker arm can be driven to open outward under the elastic force of the spring, so that the slide bar extends outward and enters the locking hole of the rectangular mounting hole of the platform body A, thereby locking the flip-over roller support guide rail; when the flip-over roller support guide rail needs to be flipped, the distance between the two rockers is manually reduced so that the rocker arm rotates inward, and after the slide bar is retracted inward, the slide bar is separated from the locking hole of the rectangular mounting hole of the platform body A; then the flip-over roller support guide rail is flipped by manual operation, so that the lower surface of the roller bracket faces upward, the lower surface of the roller bracket is flat, and a flat surface is used to transport materials.

5. The air-road combined container transportation system according to claim 2, characterized in that: The two side limits are respectively installed on both sides of the length direction of the platform body A. The side limits adopt a liftable mechanical structure, and the lift locking of the side guide rail can be realized through manual operation; Each of the side limiters comprises: a guide rod, a side guide rail frame, a limit actuator and a spring pin locking mechanism; The upper surface of the platform body A is processed with a guide rail installation groove for accommodating the side limit; two guide rods are respectively fixed in the guide rail installation grooves, and the axes of the guide rods are perpendicular to the upper surface of the platform body A; The side guide rail frame is installed in the guide rail installation groove, and a slider is provided at each end of the bottom of the side guide rail frame. The two sliders are respectively slidably matched with the two guide rods in a one-to-one correspondence to realize the movement of the side guide rail frame along the axial direction of the guide rod, that is, the lifting and lowering of the side guide rail frame relative to the upper surface of the platform body A; The two spring pin locking mechanisms are respectively installed at the two ends of the side guide frame body, and are used to lock the position of the side guide frame body when it is lowered to the limit position; each spring pin locking mechanism includes a compression spring and a positioning pin, and the positioning pin is an L-shaped rod, one end of which extends out of the end face of the side guide frame body under the action of the compression spring, and is inserted into the positioning hole provided on the end face of the guide rail installation groove of the platform body A. The positioning pin can always be in the positioning hole under the action of the compression spring, which can ensure that the side guide frame body will not be bumped and unlocked during transportation; the other end of the positioning pin is a manual operation end; A plurality of the limit actuators are installed inside the side guide frame at set intervals; each limit actuator comprises: a limit seat, a linear guide groove, a connecting frame, a lock tongue, a lock tongue connecting rod, a strip head rotating shaft and a nylon roller; The linear guide groove is fixed in the side guide rail frame body by bolts, and the connecting frame is slidably matched with the linear guide groove through a nylon roller; wherein the connecting frame and the nylon roller are pin-connected by a roller pin shaft; The connecting frame is connected to the limit seat installed in the side guide frame body through the strip head rotating shaft. The number of the limit seats is two. By selecting the limit seats at different positions to connect with the connecting frame, the position adjustment and locking of the connecting frame can be achieved; One end of the two lock tongue links is pin-connected to the roller pin on the connecting frame, and the other end is pin-connected to the lock tongue through the lock tongue pin. The two lock tongue links, the connecting frame and the lock tongue form a parallel four-bar linkage mechanism. The lock tongue can be telescopic relative to the side guide frame under the action of the parallel four-bar linkage mechanism. Among them, each roller pin and lock tongue pin are installed with a retaining spring to facilitate the movement and reset of the lock tongue. The side limit has multiple limit actuators evenly arranged, and when the lock tongue is extended, it can cooperate with the serrated frames provided on both sides of the bottom of the aviation container pallet.

6. An air-road combined container transportation system according to any one of claims 1 to 5, characterized in that: The universal rollers in the rotatable roll-on / roll-off platform adopt Mecanum wheels. The universal rollers are divided into left-handed and right-handed rollers. The universal rollers can rotate around their own axes when driven by hydraulic motors.

7. The air-road combined container transportation system according to claim 1, characterized in that: The transfer lift vehicle also includes a control console; The control panel is open and used to provide an operating space for the operator. The control panel is installed on the bottom plate through a rotary lifting device provided at the bottom. The rotary lifting device is used to realize the up and down lifting and forward and reverse rotation of the control panel. The rotary lifting device of the control panel comprises a lower hydraulic lifting device and an upper rotary device, the actuator of the hydraulic lifting device is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is mounted on the cylinder support of the bottom plate, the rotary device is mounted on the end of the piston rod of the hydraulic cylinder, and the telescopic action of the piston rod of the hydraulic cylinder drives the rotary device to lift; the rotary device comprises a base, a hydraulic rotary motor, a reducer and a slewing bearing, the base is mounted on the end of the piston rod of the hydraulic cylinder, the hydraulic rotary motor and the reducer are both mounted in the base, the output shaft of the hydraulic rotary motor is connected to the input end of the reducer, and the output end of the reducer is connected to the bottom of the control panel through the slewing bearing; the telescopic movement of the hydraulic cylinder piston rod can drive the rotary device and the control panel to lift and lower, and the hydraulic rotary motor can drive the control panel to rotate by rotating clockwise or counterclockwise; When the transfer lift truck is in operation, the control console is unfolded under the action of the rotating device. When the transfer lift truck is withdrawn, the control console is rotated to above the secondary scissor platform, and the overall width of the transfer lift truck is reduced.

8. The air-road combined container transportation system according to claim 7, characterized in that: The base plate includes: a frame, a power system, a steering system and a braking system; The vehicle frame comprises a vehicle head and a vehicle body; the vehicle head and the vehicle body are connected in parallel, and the height of the vehicle head is higher than the height of the vehicle body; The power system, steering system and brake system are all installed on the frame, the power system is used to drive the frame to travel, the steering system is used to drive the frame to turn, and the brake system is used to brake the frame; The base plate is also equipped with a traction joint, which can be connected to the aviation terminal traction vehicle, so that the frame has a short-distance traction and movement function; the base plate is also equipped with a lithium iron phosphate battery pack, which is used to charge the power system, steering system and braking system, so that the base plate can drive autonomously after being separated from the traction of the traction vehicle.

9. The air-road combined container transportation system according to claim 8, characterized in that: The first-level scissor platform includes: a main platform and a main platform lifting mechanism, and the second-level scissor platform includes: a bridge platform and a bridge platform lifting mechanism; The main platform is installed on the vehicle body through the main platform lifting mechanism, and the bridge platform is installed on the vehicle head through the bridge platform lifting mechanism; The main platform lifting mechanism adopts a first-level scissor, chain sprocket, and hydraulic lifting structure to drive the main platform to rise and fall relative to the vehicle body, and the bridge platform lifting mechanism adopts a second-level scissor and hydraulic lifting structure to drive the bridge platform to rise and fall relative to the vehicle head; The main platform comprises: a frame 1, a conveying roller, a limit baffle, a conveying table 1 and a grating sensor; The frame 1 is a rectangular frame, the conveying table 1 is installed on the inner side of the frame 1, and the four sides of the conveying table 1 are respectively connected to the four sides of the rectangular frame in a one-to-one correspondence; the four groups of conveying rollers are respectively installed on the outer sides of the frame 1; There are several universal rollers installed on the conveying table. The aviation container pallet on the conveying table can perform three actions: longitudinal transmission, transverse transmission and horizontal rotation under the action of the universal rollers. The universal rollers are driven by hydraulic motors through chains, and the hydraulic motors are controlled by electromagnetic reversing valves to achieve different transmission directions. The universal rollers use Mecanum wheels. A set of limit baffles are arranged around the conveying platform 1 of the main platform. When the aviation container pallet is on or off the main platform, the limit baffles are retracted. When the aviation container pallet is conveyed, the limit baffles are raised manually. Grating sensors are also installed on the left and right sides of the conveying platform 1 to detect the position of the aviation container pallet. The bridge platform comprises: a second frame, a second conveying platform, a buffer device and a guardrail; The second frame is a rectangular frame, the second conveying platform is installed on the inner side of the second frame, and the four sides of the second conveying platform are connected to the four sides of the rectangular frame one by one; The buffer device is a buffer rubber pad installed on the front outer side of the second frame to prevent damage to the equipment when it collides with the aircraft; the guardrail is installed on the outer side of the second frame; Several universal rollers are installed on the second conveying platform. The aviation container pallet on the second conveying platform can perform three actions: longitudinal transmission, transverse transmission and horizontal rotation under the action of the universal rollers. The universal rollers are driven by hydraulic motors through chains, and the hydraulic motors are controlled by electromagnetic reversing valves to achieve different transmission directions. The universal rollers use Mecanum wheels. The control console is located on the side where the bridge platform is located.

10. An air-road combined container transportation method, based on the air-road combined container transportation system according to any one of claims 1 to 9, characterized in that: The specific steps of this method are as follows: Step 1: Load the goods onto the aviation pallet; Step 2: Roll the aviation container pallet loaded with goods onto the roll-on / roll-off platform of the intermodal vehicle in the long-side direction; Step 3: The intermodal vehicle transports the air container pallet loaded with goods to the air terminal; Step 4: Park the intermodal vehicle, transfer lift truck, and engine room in parallel order; Step 5: Roll the air container pallet loaded with goods from the roll-on / roll-off platform to the rotatable roll-on / roll-off platform. The rotatable roll-on / roll-off platform rotates the air container pallet so that its short side direction is the forward direction of transportation, that is, the short side direction of the air container pallet is perpendicular to the length direction of the transport vehicle; Step 6: Move the transfer lift truck to the rear of the intermodal vehicle, adjust the first-level scissor platform to the same height as the rotatable roll-on / roll-off platform of the intermodal vehicle, and then roll the air container pallet loaded with goods onto the first-level scissor platform; Step 7: After adjusting the primary scissor platform to the same height as the secondary scissor platform, roll the aviation container pallet loaded with goods onto the secondary scissor platform; Step 8: Move the transfer lift to the entrance and exit of the cabin, adjust the height of the secondary scissor platform to make it consistent with the height of the cabin loading surface, roll the aviation container pallet loaded with goods into the cabin, and use the limit device to limit the movement to complete the loading; Step 9: Repeat the above steps until all the goods are transferred and loaded into the cabin; When the goods need to be transported to a designated location, the delivery of the goods can be achieved by reversing the above steps.

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