Device and method for air transportation loading and unloading of large semitrailer platform

Abstract

The invention discloses a large semitrailer platform air transport loading and unloading device and method, and relates to the technical field of air transport loading and unloading, the large semitrailer platform air transport loading and unloading device comprises a traction small wheel set, a driven small wheel set and a loading approach bridge; before air transportation, the front and rear small wheel sets of the large semi-trailer platform exceeding the air transportation height can be reloaded, and after the front and rear small wheel sets with small diameters are reloaded, the overall height of the semi-trailer platform can be reduced by not less than 500mm, so that the semi-trailer platform after the traction small wheel set and the driven small wheel set are reloaded can meet the overall dimension of an airplane cargo hold; the traction small wheel set and the driven small wheel set carry out air transportation along with the semitrailer platform, the semitrailer platform can be unloaded after the semitrailer platform arrives at a destination, automatic loading and unloading of the loading and unloading two-site airport are achieved, the design is novel, operation is convenient, the method can be used as a universal air transportation loading method of the semitrailer platform exceeding the air transportation height, and application and popularization are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of air transport loading and unloading, and in particular to equipment and method for air transport loading and unloading on a large semi-trailer platform. Background Art

[0002] As one of the means of transporting large equipment, large transport aircraft can achieve long-distance and rapid delivery compared to road and rail transportation. Currently, air transportation has been widely promoted and used. The loading of small and medium-sized goods by air is relatively simple, but some large equipment is limited by the height, length and weight of transportation, and cannot meet the passing size and load limit of the aircraft cargo hold. The equipment needs to be partially disassembled before it can be loaded and unloaded by air.

[0003] For large semi-trailer equipment with extra height for air transportation, it is generally necessary to detach the tractor head and disassemble the rear axle wheel set to lower the height to meet the cargo hold air transportation size requirements. The semi-trailer platform after the height is lowered is transported separately by air, and air transportation loading and unloading is carried out with the help of powered auxiliary loading and unloading means. How to load and unload the large semi-trailer platform quickly and independently becomes a problem. At present, the auxiliary air transportation loading and unloading of large equipment often adopts the method of loading and unloading vehicles, specifically: the equipment is hoisted on a self-propelled loading and unloading vehicle, and the loading and unloading vehicle pushes the equipment to the cargo hold at the rear of the aircraft and adjusts the vehicle platform height to be flush with the cargo hold floor, and then uses the electric winch at the front end of the aircraft combined with the roller on the cargo hold floor for towing and loading.

[0004] However, the current loading and unloading trucks have a small tonnage and a high height, which cannot meet the overall loading and unloading requirements of a 40-ton semi-trailer platform. In addition, the traditional loading and unloading truck unloading method has the following problems:

[0005] 1. The loading process of this method is relatively complicated, and it is impossible to achieve rapid loading and unloading of the semi-trailer platform on the aircraft cargo hold.

[0006] 2. The winch at the front end of the aircraft cargo hold combined with the cargo hold floor roller has no braking function when towing, which has a low safety factor for loading large military equipment;

[0007] 3. The loading compatibility between the loading and unloading platform and the equipment is poor. Both the loading and unloading airports require large loading and unloading platforms, and the manufacturing cost of the loading and unloading vehicles is high.

[0008] Therefore, the traditional air transport loading and unloading method of loading and unloading trucks cannot meet the needs of fast air transport loading and unloading of large semi-trailer platforms. Summary of the invention

[0009] The present invention provides equipment and method for loading and unloading by air on a large semi-trailer platform, which solves the technical problems of a traditional loading and unloading method, such as complex loading, low safety factor due to lack of braking function, poor adaptability and high cost.

[0010] In order to solve the above technical problems, the present invention provides a large semi-trailer platform air transport loading and unloading equipment, including a traction small wheel group, a driven small wheel group, and a loading approach bridge.

[0011] In some embodiments, the traction wheel group is installed on the frame with no less than 2 wheel groups with smaller diameters, and the wheel group diameter is 500mm smaller than the front axle wheel group. The original traction frame is equipped with a high-power motor drive device for driving the traction wheel group to move, a steering mechanism for steering, a braking device for parking and a connecting saddle; wherein the connecting saddle adopts a universal semi-trailer saddle with a swing angle of 10° on the market, which can realize quick connection and towing of the semi-trailer platform, and can adapt to the changes in the turning point angle when loading the approach bridge from the ground and loading the aircraft cargo hold. The configured handheld remote control can operate the forward and backward movement, steering and braking of the traction wheel group.

[0012] In some embodiments, the driven small wheel group adopts a double-bridge wheel group with a smaller diameter and is connected to the balance beam, and is 500mm smaller than the wheel group diameter of the rear axle wheel group. The center point of the balance beam is connected to the rear axle frame through a hinge shaft. Therefore, the balance beam can swing around the frame hinge point, and the swinging angle is slightly larger than the slope angle of the loading approach bridge.

[0013] In some embodiments, the loading approach bridge is composed of several segmented approach bridges, which are spliced ​​to form a loading approach bridge with a fixed small angle. The end height of the loading approach bridge is flush with the tail of the aircraft, so that the semi-trailer platform can be loaded before entering and exiting the cargo hold.

[0014] In some embodiments, the traction wheel group and the driven wheel group have a compact structure and a total weight of no more than 6 tons, which can reduce the weight by no less than 7 tons compared with the total weight of the original traction head and rear axle wheel group of 13 tons. Calculated based on a 50-ton transport aircraft, the traction wheel group and the driven wheel group can meet the air transportation loading and unloading requirements of a 40-ton semi-trailer platform.

[0015] The present invention also provides a method for using air transport loading and unloading equipment for a large semi-trailer platform, including a loading process and an unloading recovery process. The loading process specifically includes the following steps: switching the semi-trailer platform to an air transport state, first removing the tractor head, and replacing the rear axle wheel group of the semi-trailer platform with a driven small wheel group for air transport by overall lifting or other equivalent methods, and replacing the tractor head with a traction small wheel group; after replacing the front and rear small wheel groups with smaller diameters, the overall height of the semi-trailer platform can be reduced by no less than 500mm, so that its overall height is reduced to meet the air transport requirements; finally, using a handheld remote control to control the traction small wheel group to drag the semi-trailer platform through the loading approach bridge to perform self-loading of the cargo hold of the upper and lower aircraft.

[0016] In some embodiments, the unloading and recovery process is the opposite of the loading process. After the aircraft arrives at the destination, the semi-trailer platform is towed out of the aircraft cargo hold along the loading approach bridge by the traction wheel group. Then the traction wheel group and the driven wheel group are disassembled and replaced with the original traction head and rear axle wheel group, so that the semi-trailer platform is restored to the road transportation state.

[0017] Compared with the related art, the equipment for loading and unloading large semi-trailer platforms provided by the present invention has the following beneficial effects:

[0018] The present invention provides equipment and method for loading and unloading a large semi-trailer platform during air transportation. Before air transportation, the front and rear small wheel groups of the large semi-trailer platform that exceeds the air transportation height can be replaced. After replacing the front and rear small wheel groups with smaller diameters, the overall height of the semi-trailer platform can be reduced by no less than 500 mm to ensure that the semi-trailer platform after replacing the traction small wheel group and the driven small wheel group can meet the outline size of the aircraft cargo compartment.

[0019] The present invention provides equipment and methods for loading and unloading large semi-trailer platforms by air transport. The powered traction wheel group has high-power motor drive, steering and braking functions. At the same time, the universal trailer saddle can realize the quick connection and towing of the semi-trailer platform. The rated towing weight of the traction wheel group is not less than 40 tons, which is equivalent to the rated towing weight of the original towing vehicle. Therefore, the traction wheel group can be controlled by a handheld remote control to tow the semi-trailer platform to walk on the ground and load and unload the aircraft cargo hold by itself, thus realizing the quick and automatic loading and unloading of the large semi-trailer platform. At the same time, the semi-trailer platform can realize parking brake on the loading approach bridge and the aircraft cargo hold, ensuring the safety of the loading and unloading process.

[0020] The present invention provides equipment and method for air transport loading and unloading of a large semi-trailer platform. The rated load of the driven small wheel group is not less than 26 tons, which is equivalent to the load of the original rear axle wheel group, ensuring the load demand for the semi-trailer platform. At the same time, the articulated balance beam swing arm can adapt to the change of the turning point angle when loading the approach bridge from the ground and loading onto the aircraft cargo hold, thereby achieving smoothness of the loading process.

[0021] The present invention provides equipment and method for air transport loading and unloading of a large semi-trailer platform. Since the traction small wheel group and the driven small wheel group have a compact structure and a total weight of no more than 6 tons, the total weight of the original traction head and rear axle wheel group of 13 tons can be reduced by no less than 7 tons. Calculated based on a 50-ton transport aircraft, the traction small wheel group and the driven small wheel group can meet the air transport loading and unloading of 40-ton semi-trailer platform equipment.

[0022] The present invention provides equipment and method for air transport loading and unloading of a large semi-trailer platform. Since the traction small wheel group and the driven small wheel group are air transported with the semi-trailer platform, the semi-trailer platform can be unloaded after arriving at the destination, thus realizing self-loading and unloading at the airports of the two places.

[0023] In summary, the present invention is novel in design and easy to operate, and can be used as a universal air transport loading method for a semi-trailer platform with an ultra-high air transport height, which is convenient for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a loading schematic diagram of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the traction wheel assembly of the present invention;

[0026] Figure 3 It is a top view schematic diagram of the traction wheel assembly of the present invention;

[0027] Figure 4 It is a side schematic diagram of the driven small wheel assembly of the present invention;

[0028] Figure 5 It is a top view schematic diagram of the driven small wheel assembly of the present invention;

[0029] Figure 6 It is a schematic diagram comparing the semi-trailer platform equipment of the present invention before and after the small wheel set is replaced.

[0030] Numbers in the figure: 100, traction small wheel group; 200, driven small wheel group; 300, loading approach bridge; 400, semi-trailer platform; 101, traction frame; 102, front axle small wheel group; 103, driving device; 104, steering mechanism; 105, braking device; 106, connecting saddle; 107, handheld remote control; 201, rear axle frame; 202, balance beam; 203, rear axle small wheel group. DETAILED DESCRIPTION

[0031] Embodiment 1

[0032] This embodiment provides a large semi-trailer platform air transport loading and unloading equipment, such as Figure 1-6 As shown, the present invention includes a traction wheel group 100, a driven wheel group 200 and a loading approach bridge 300. The traction wheel group 100 replaces the traction head and is connected to the traction pin at the front of the semi-trailer platform 400; the driven wheel group 200 replaces the original rear axle wheel group and is reliably connected to the rear frame of the semi-trailer platform 400 through studs; the loading approach bridge 300 includes a plurality of segmented approach bridges, which are spliced ​​to form a loading approach bridge 300 with a fixed small angle. The end height of the loading approach bridge 300 is flush with the tail of the aircraft. The semi-trailer platform 400 after installing the traction wheel group 100 and the driven wheel group 200 can load and unload the cargo hold of the aircraft by itself through the loading approach bridge 300; the total weight of the traction wheel group 100 and the driven wheel group 200 is not more than 6 tons, which can meet the needs of the 40-ton semi-trailer platform 400 to load and unload the cargo hold of the aircraft by itself through the loading approach bridge 300.

[0033] In this embodiment, Figure 1 As shown, the front and rear small wheel groups of the large semi-trailer platform 400 with a height exceeding the air transport height can be replaced before air transport. After replacing the front and rear small wheel groups with smaller diameters, the overall height of the semi-trailer platform 400 can be reduced by no less than 500 mm to ensure that the semi-trailer platform 400 after replacing the traction small wheel group 100 and the driven small wheel group 200 can meet the outline size of the aircraft cargo compartment. Since the traction small wheel group 100 and the driven small wheel group 200 are compact in structure and have a total weight of no more than 6 tons, compared with the total weight of 13 tons of the original traction head and rear axle wheel group, the weight can be reduced by no less than 7 tons. According to the calculation of a 50-ton transport aircraft, the traction small wheel group 100 and the driven small wheel group 200 can meet the air transport loading and unloading of the 40-ton semi-trailer platform 400 equipment. Since the traction wheel assembly 100 and the driven wheel assembly 200 are transported by air along with the semi-trailer platform 400, the semi-trailer platform 400 can be unloaded after arriving at the destination, thus realizing self-loading and unloading at the airports of the two places.

[0034] Embodiment 2

[0035] Based on the first embodiment, Figure 2-3 As shown, the traction wheel set 100 of this embodiment includes a traction frame 101 and a front axle wheel set 102. The traction frame 101 is respectively provided with a driving device 103 for driving the traction wheel set 100 to move, a steering mechanism 104 for steering, a brake device 105 for parking, and a connecting saddle 106. The number of traction wheel sets 100 provided on the traction frame 101 is not less than 2, and the wheel set diameter of the front axle wheel set 102 is not less than 500 smaller than the wheel set diameter of the original front axle wheel set. mm, the rated traction weight of the driving device 103 is not less than 40 tons, and is used to drive the traction wheel group 100 to move; the connecting saddle 106 adopts a universal semi-trailer saddle with a swing angle of 10° on the market, which can realize the rapid connection and towing of the semi-trailer platform 400, and can adapt to the change of the turning point angle when loading the approach bridge 300 from the ground and loading the aircraft cargo hold. The connecting saddle 106 is also equipped with a handheld remote control 107, which can operate the forward and backward movement, steering, and braking of the traction wheel group 100.

[0036] In this embodiment, the powered traction wheel assembly 100 has high-power motor drive, steering and braking functions, and the universal trailer saddle can realize the quick connection and towing of the semi-trailer platform 400. The rated towing weight of the traction wheel assembly 100 is not less than 40 tons, which is equivalent to the rated towing weight of the original towing vehicle. Therefore, the traction wheel assembly 100 can be controlled by the handheld remote control 107 to tow the semi-trailer platform 400 to walk on the ground and load and unload the aircraft cargo hold by itself, realizing the quick and automatic loading and unloading of the large semi-trailer platform 400. At the same time, the semi-trailer platform 400 can realize parking brakes on the loading approach bridge 300 and the aircraft cargo hold, ensuring the safety of the loading and unloading process.

[0037] Embodiment 3

[0038] Based on the first embodiment, Figure 4-5 As shown, the driven small wheel group 200 of this embodiment includes a rear axle frame 201, a balance beam 202 and a rear axle small wheel group 203, the rear axle small wheel group 203 is connected to the balance beam 202, the center point of the balance beam 202 is connected to the rear axle frame 201 through a hinge shaft, and the wheel group diameter of the rear axle small wheel group 203 is not less than 500mm smaller than the wheel group diameter of the original rear axle wheel group; the balance beam 202 can be around the hinge point on the rear axle frame 201 (such as Figure 4 The driven small wheel group 200 can swing at a swing angle greater than the slope angle of the loading approach bridge 300, and the total load-bearing capacity of the driven small wheel group 200 is not less than 26 tons.

[0039] In this embodiment, the rated load of the driven small wheel group 200 is not less than 26 tons, which is equivalent to the load of the original rear axle wheel group, ensuring the load requirement for the semi-trailer platform 400. At the same time, the articulated balance beam swing arm can adaptively adapt to the changes in the turning point angle when loading the approach bridge 300 from the ground and loading it into the aircraft cargo hold, thereby achieving smoothness of the loading process.

[0040] Working principle: the frame serves as the bearing basis of each component, and the small-diameter wheel set is conducive to reducing the overall height; the high-power motor drive device 103 provides sufficient power, the rated traction weight is not less than 40 tons, and can tow the semi-trailer platform 400 to move; the steering mechanism 104 realizes the steering operation, the brake device 105 guarantees the parking demand, the connecting saddle 106 can quickly connect and tow the semi-trailer platform 400, and can adapt to the angle changes from the ground to the loading approach bridge 300 and the process of entering the aircraft cargo hold. The handheld remote control 107 is convenient for remotely controlling the walking, steering and braking actions of the traction small wheel set 100; the double-bridge wheel set carries the rear weight of the semi-trailer platform 400, and the balance beam 202 can swing around the hinge point of the frame, and the swing angle is slightly larger than the slope angle of the loading approach bridge 300, so that it can adapt to the inflection point angle changes when loading the approach bridge 300 from the ground and entering the aircraft cargo hold, ensuring the stability of the semi-trailer platform 400 during movement, and the total load is not less than 26 tons, meeting the load requirements of the semi-trailer platform 400.

[0041] Implementation steps:

[0042] Loading process: S1: The process of air transport loading on a large semi-trailer platform is as follows: before air transport, the semi-trailer platform 400 needs to be switched from the road transport state to the air transport state. First, the tractor head is removed, and the rear axle wheel set of the semi-trailer platform 400 is replaced with the driven small wheel set 200 for air transport by means of overall lifting and other methods, and is securely connected through studs. The traction small wheel set 100 replaces the tractor head and is connected to the front traction pin of the semi-trailer platform 400;

[0043] S2: After replacing the front and rear small wheels with smaller diameters, the overall height of the semi-trailer platform 400 can be reduced by no less than 500mm, and the overall height of the semi-trailer platform 400 can be reduced to the air transportation requirements;

[0044] S3: The handheld remote controller 107 is then used to control the traction wheel assembly 100 to drag the semi-trailer platform 400 through the loading approach bridge 300 to perform self-loading of the cargo hold of the upper and lower aircraft.

[0045] Unloading and recovery process: The unloading and recovery process is the opposite of the loading process. After the aircraft arrives at the destination, the semi-trailer platform 400 is towed out of the aircraft cargo hold along the loading approach bridge 300 by relying on the power, steering, braking and other functions of the traction wheel group 100. Then, the traction wheel group 100 and the driven wheel group 200 are disassembled and replaced with the original traction head and rear axle wheel group, so that the semi-trailer platform 400 is restored to the road transportation state.

Claims

1. A large semi-trailer platform air transport loading and unloading equipment, characterized in that: It includes a traction small wheel group, a driven small wheel group and a loading approach bridge; The traction wheel group replaces the traction head and is connected to the traction pin at the front of the semi-trailer platform; The driven small wheel set replaces the original rear axle wheel set and is reliably connected to the rear frame of the semi-trailer platform through studs; The loading approach bridge comprises several segmented approach bridges, which are spliced ​​to form a loading approach bridge with a fixed small angle. The end height of the loading approach bridge is flush with the rear of the aircraft cargo hold. After the traction small wheel group and the driven small wheel group are installed, the semi-trailer platform can load and unload the aircraft cargo hold by itself through the loading approach bridge.

2. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 1, characterized in that: The total weight of the traction small wheel group and the driven small wheel group is no more than 6 tons, which can meet the requirements of a 40-ton semi-trailer platform for self-loading and unloading in and out of the aircraft cargo hold through the loading approach bridge.

3. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 1, characterized in that: The traction wheel group comprises a traction frame and a front axle wheel group, and the traction frame is respectively provided with a driving device for driving the traction wheel group to move, a steering mechanism for steering, a braking device for parking and a connecting saddle.

4. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 3, characterized in that: The number of the small front axle wheel sets is no less than 2, and the wheel set diameter of the small front axle wheel sets is no less than 500mm smaller than the wheel set diameter of the original front axle wheel sets.

5. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 3, characterized in that: The travel drive device has a rated traction weight of not less than 40 tons and is used to drive the traction wheel group to travel.

6. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 3, characterized in that: The connecting saddle adopts a universal semi-trailer saddle with a swing angle of 10° on the market, which can realize quick connection and towing of the semi-trailer platform, and can adapt to the change of turning point angle when loading the approach bridge from the ground and loading the aircraft cargo hold. The connecting saddle is also equipped with a handheld remote control, which can operate the forward and backward movement, steering and braking of the traction wheel group.

7. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 1, characterized in that: The driven small wheel group includes a rear axle frame, a balance beam and a rear axle small wheel group. The rear axle small wheel group is connected to the balance beam. The center point of the balance beam is connected to the rear axle frame through a hinge shaft. The wheel group diameter of the rear axle small wheel group is not less than 500mm smaller than the wheel group diameter of the original rear axle wheel group.

8. The equipment for loading and unloading large semi-trailer platforms by air transport according to claim 7, characterized in that: The balance beam can swing around the hinge point on the frame, and the swing angle is greater than the slope angle of the loading approach bridge. The total load-bearing capacity of the small wheel group of the rear axle is not less than 26 tons.

9. A method for using the large semi-trailer platform air transport loading and unloading equipment as claimed in any one of claims 1 to 8, characterized in that: Including loading process and unloading recovery process, the loading process specifically includes the following steps: S1: Switch the semi-trailer platform to the empty transport state, first remove the tractor head, replace the rear axle wheel set of the semi-trailer platform with the empty transport driven small wheel set by overall lifting or other equivalent methods, and replace the tractor head with the traction small wheel set; S2: After replacing the front axle and rear axle small wheel assemblies with smaller diameters, the overall height of the semi-trailer platform can be reduced by no less than 500mm, so that the overall height is reduced to meet the requirements of air transportation; S3: Finally, the handheld remote controller is used to control the traction wheel assembly to drag the semi-trailer platform through the loading approach bridge to perform self-loading of the cargo hold of the upper and lower aircraft.

10. The method for using the large semi-trailer platform air transport loading and unloading equipment according to claim 9, characterized in that: The unloading and recovery process is the opposite of the loading process. After the aircraft arrives at the destination, the semi-trailer platform is towed out of the aircraft cargo hold along the loading approach bridge by the traction wheel group. Then the traction wheel group and the driven wheel group are disassembled and replaced with the original traction head and rear axle wheel group, so that the semi-trailer platform is restored to the road transportation state.

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