CN117163278B - Hanging modularized integral cargo hold and upper single-wing cargo aircraft - Google Patents
Hanging modularized integral cargo hold and upper single-wing cargo aircraft Download PDFInfo
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Abstract
The invention discloses a hanging modularized integral cargo hold and an upper single-wing cargo aircraft, and relates to the technical field of cargo aircraft. According to the invention, a modularized aircraft structural design is adopted, the size of a cargo hold of a freight aircraft can be changed according to requirements, and matched aircraft modules can be designed according to the size of the cargo hold, so that a serialized cargo hold and freight aircraft model are formed; the movable door type lifting arm is designed in the cargo hold, so that the cargo hold can automatically move along the bearing sliding rail with the cargo box, and the gravity center of the aircraft is ensured to be stable after air drop; the use of the container is modularized, the combination and the matching of the goods are more flexible.
Description
Technical Field
The invention relates to the technical field of freight aircrafts, in particular to a hanging modularized integral cargo hold and an upper single wing freight aircraft.
Background
Freight aircraft are currently in use, some of which are retrofitted from manned aircraft, and some of which are specially designed, individually.
The main purpose of the refitted cargo plane is civil freight, and the main reasons of the customer refitted freight are cost reduction, service life prolongation, capacity improvement or market demand adaptation. The main operations of retrofitting cargo aircraft include: removing original facilities and devices of the passenger plane, such as seats, luggage cabins and the like; providing a stronger floor and a cargo handling system, and additionally installing a large cabin door on the side surface of the machine body or the machine head; reinforcing the cabin floor and fuselage structure to carry the weight of cargo; installing a baffle or barrier net capable of bearing 9g of overload, separating a cargo compartment from a unit compartment, and balancing the moment of a fuselage; and installing freight safety equipment such as a smoke and fire detection and alarm system, a fire suppression system and the like. The special cargo plane is designed solely for military or other special use to meet specific use requirements.
The design of the aircraft structure always adopts the design principle of taking and freight into consideration, namely ensuring the freight function of the aircraft and ensuring the comfort and safety of personnel in the process of flight and transportation, no matter in a passenger freight-changing mode or in a mode of independently designing a special cargo aircraft. Therefore, all the existing cargo aircraft are derived from the existing passenger-cargo compatible model or similar design modes in the structural design of the aircraft body. In recent years, with the development of unmanned aerial vehicle technology, unmanned freight unmanned aerial vehicles become new freight tools, and freight unmanned aerial vehicles should be capable of reducing cost and complexity of freight unmanned aerial vehicles for carrying passengers in terms of design and manufacturing, but since most freight unmanned aerial vehicles are modified by unmanned aerial vehicles at present, very few special freight unmanned aerial vehicles designed independently also use cargo space structure designs of floor bearing, and other freight unmanned aerial vehicles are not substantially different in terms of fuselage and cargo space structure designs.
The defects and drawbacks of the above design are:
(1) The overall structure of the aircraft is considered to carry passengers and cargo, the floor and the load-bearing structure of the floor must be connected to the overall load-bearing structure of the aircraft, which is a dead weight structure, and the cost of the aircraft is increased both from the design and the manufacturing aspects;
(2) The existing freight aircraft loading and unloading channel mainly comprises a nose, a tail and a side door, and needs to be loaded and unloaded successively through a loading and unloading machine, so that the loading and unloading time is long;
(3) The existing fixed wing freight aircraft adopts a rear cabin or side door air-drop mode, the air-drop speed is low, personnel are required to operate the air-drop process in the cabin and readjust the cargo layout to keep the center of gravity of the aircraft, and the method is not suitable for unmanned freight aircraft;
(4) The cargo hold design of the existing freight aircraft is developed based on the aircraft structure, i.e. the cargo hold design is performed based on the aircraft design, for example, the freight demand changes, the aircraft must be redesigned or modified based on the existing aircraft model, and the universality and the flexibility are not high.
Disclosure of Invention
In order to solve the technical problems of the cargo hold of the cargo aircraft, the invention provides a hanging type modularized integrated cargo hold and an upper single-wing cargo aircraft. The following technical scheme is adopted:
the utility model provides a hanging type modularization integral cargo hold, includes grid type load-carrying frame, cargo hold frame, sagging bearing structure, wing connection structure, aircraft nose tie-beam, flat-open tail hatch door, folding formula split bottom hatch door, a pair of load-carrying slide rail and a plurality of portal crane lift arm, the cargo hold frame top is equipped with grid type load-carrying frame, grid type load-carrying frame top is equipped with the wing connection structure that is used for connecting the wing, and two sides of cargo hold frame are equipped with sagging bearing structure respectively, and the one end of cargo hold frame is equipped with aircraft nose tie-beam, flat-open tail hatch door can open and shut and install the other end at the cargo hold frame, folding formula split bottom hatch door can open and shut and install the bottom at the cargo hold frame, and a pair of load-carrying slide rail is installed respectively in the slider of a pair of load-carrying slide rail to remove along load-carrying slide rail direction, a plurality of portal crane lift arms are used for loading and unloading the hanging type air cargo container, and fixed hanging type air cargo container behind the hanging type air cargo container when hanging type is moved to the settlement position.
Optionally, the grid type bearing frame is formed by mutually fixing a plurality of bearing beams which are connected in a crisscross manner.
By adopting the technical scheme, the wing connecting structure is designed at the central position of the grid type bearing frame, and can be fixedly connected with the wing bearing structure, so that the cargo hold cabin body is firmly connected with the aircraft wing, and the cargo hold is only applicable to an aircraft with a single wing structure; the rear end of the grid type bearing frame of the cargo hold is fixedly connected with the vertical tail wing and the horizontal tail wing of the aircraft, so that the cargo hold is fixedly connected with the tail of the aircraft, and the aircraft nose connecting beam at the front end of the grid type bearing frame of the cargo hold is fixedly connected with the aircraft nose, so that the cargo hold body is fixedly connected with the aircraft nose;
the two sides of the cargo hold are provided with sagging supporting structures for supporting main landing gears of the aircraft, which are arranged on lower frames at the two sides of the cargo hold, and the nose landing gear of the aircraft is arranged on a nose connecting beam;
the cargo hold can be opened from the bottom and the rear for loading and unloading cargoes from the bottom and the rear, the bottom is provided with a folding split bottom cabin door which can be closed and locked after the cargo loading and unloading are completed, the rear cabin door is a double-side flat-open type tail cabin door, and when the rear part of the cargo hold is loaded and unloaded, the flat-open type tail cabin door is flat-opened to two sides, so that other bearing and carrying equipment such as a forklift can be allowed to drive into the cargo hold from the rear for loading and unloading;
the modular aircraft structure design, the size of the cargo hold can be changed according to the requirement, and matched aircraft modules can be designed according to the size of the cargo hold, so that a serialized cargo hold and a freight aircraft model are formed.
Aiming at the design of the hung goods, the problem of the bottom plate structure is not needed to be considered, the dead weight of the aircraft can be reduced, and the manufacturing and transportation cost is reduced;
the movable door type lifting arm is designed in the cargo hold, the two sides of the grid type bearing frame at the top of the cargo hold are respectively provided with a fixed bearing slide rail, the bearing slide rails are used for installing and fixing the door type lifting arm, the door type lifting arm can transversely slide along the bearing slide rails so as to adapt to the hanging positions of different freight containers, and after the hanging positions are determined, the door type lifting arm can be locked at the positions of the bearing slide rails; the cargo hold cannot load bulk cargo, the cargo hold must be matched with a special hanging type air freight container, the number of the door type lifting arms can be adjusted according to the length of the cargo hold and the number of the shipping air freight containers, generally, the number of the door type lifting arms is not less than two, the door type lifting arms are used for loading and unloading the hanging type air freight containers, the weight of the hanging type air freight containers is borne, the box body is fixed, the hanging type air freight containers cannot be moved in obvious positions in flight, so that the cargo is well-distributed and the stability of the gravity center of an airplane is guaranteed, and the stability of the gravity center of the airplane after air drop is guaranteed.
Optionally, the portal crane lifting arm comprises a cross beam, a pair of width adjustment motors, a pair of lifting rods, a plurality of steel ropes and a pair of lifting forks, wherein the top of the cross beam is respectively installed on the sliding blocks of a pair of bearing sliding rails through a connecting block, the width adjustment motors are installed on the cross beam, the lifting rods comprise telescopic parts and lifting parts, the pair of lifting rods are respectively connected to two sides of the cross beam through the telescopic parts, the pair of width adjustment motors respectively drive the lifting rods to horizontally move in an included angle direction of 90 degrees through the steel ropes, lifting forks are respectively arranged on the inner sides of the lifting parts of the pair of lifting rods, the pair of lifting motors are respectively installed on the cross beam and move up and down in the vertical direction through the steel ropes, and the pair of lifting forks are used for bearing hanging type air containers.
Through adopting above-mentioned technical scheme, portal jib loading crane comprises cross beam, width adjustment motor, elevator motor, lifter, cable wire and lift fork, and width adjustment motor is used for driving the horizontal sideslip that the lifter is 90 contained angle directions in the aircraft axis, and elevator motor is used for driving the lifter and reciprocates at the vertical direction, and width adjustment motor and elevator motor are all fixed at cross beam and use cable wire and pulley transmission, and the lift fork is used for carrying and fixes the packing box.
Optionally, the portal crane lifting arm further comprises a hanging beam for bearing and hanging the fixed hanging type parachute-free air drop box, the hanging beam comprises two hanging lock bolts, a hanging beam body and a plurality of aviation hooks, grooves parallel to the longitudinal axis of the aircraft are arranged below the cross beam, the two hanging lock bolts are respectively arranged on two sides of the inner wall of the grooves and along the longitudinal axis direction of the aircraft, a hanging groove is respectively formed in the left side and the right side of the hanging beam body along the longitudinal axis direction of the aircraft, the outer dimension of the hanging beam body is matched with the inner dimension of the cross beam groove, and the cross beam groove is filled upwards; during hanging, the hanging lock tongue is retracted, after the hanging beam body is completely embedded into the hanging groove, the hanging beam body is rebounded and inserted into the hanging groove, the combination of the hanging beam and the cross beam is completed, and the plurality of aviation hooks are respectively arranged on the bottom surface of the hanging beam body and used for hanging and throwing the hanging type parachute-free air drop box.
By adopting the technical scheme, the cross beam can also be used for bearing and hanging a hanging beam for fixing the hanging type parachute-free air drop box, the cargo hold supports the hanging type parachute-free air drop box, a groove parallel to the longitudinal axis of the aircraft is designed below the cross beam of the portal crane lifting arm, two hanging bolts are designed on two sides of the inner wall of the groove along the longitudinal axis direction of the aircraft, a hanging groove is respectively formed on the left side and the right side of the hanging beam body of the hanging type parachute-free air drop box along the longitudinal axis direction of the aircraft, the outer dimension of the hanging beam body is matched with the inner dimension of the groove of the cross beam, and the cross beam groove can be filled upwards; during hanging, the hanging lock tongue is retracted, after the hanging beam body is completely embedded into the hanging groove, the hanging beam body is rebounded and inserted into the hanging groove, the combination of the hanging beam and the cross beam is completed, an aviation hook with an automatic unhooking function is arranged on the bottom surface of the hanging beam body, the hanging type parachute-free air drop box mounted on the aviation hook can be released according to instructions, the hanging type parachute-free air drop box is directly dropped out of an airplane from a lower loading and unloading port of an airplane belly, and after the hanging type parachute-free air drop box is dropped by the air, buffer equipment provided by the hanging type parachute-free air drop box is utilized for decelerating, so that the hanging type parachute-free air drop box does not bear excessive impact when falling to the ground, and the integrity of goods in the box is ensured.
Optionally, a plurality of hanging air containers are respectively mounted on the door type crane lifting arm through a plurality of container connectors, eight vertex angles of each hanging air container are respectively provided with a container connecting seat, and when container connecting seats at corresponding positions of two adjacent hanging air containers are aligned, the adjacent container connecting seats are connected through the container connectors.
Optionally, the container connecting seat is equipped with patchhole and well portion, and the container connector includes intermediate block, a pair of connector hasp and a pair of carrier block, the both sides of intermediate block set up a pair of carrier block respectively, the tip of a pair of carrier block sets up a pair of connector hasp respectively, and when a pair of connector hasp inserted the patchhole of container connecting seat respectively and arranged in well portion completely, through rotating 90 with the intermediate block, a pair of connector hasp is locked in container connecting seat well portion, realizes the connection of adjacent container connecting seat.
Optionally, a plurality of hanging air containers with different specifications are connected through container connectors to form a hanging air container assembly, and when the hanging air container assembly is used for loading, the hanging air container assembly realizes integral loading through one-time lifting, and when the hanging air container assembly is used for unloading, the hanging air container assembly realizes integral unloading through one-time lifting.
By adopting the technical scheme, the hanging type air freight container is of a fully-closed design, the structure of the container body is basically the same as that of a common container, only the hanging mechanism which is matched with the cargo hold for loading and unloading is redesigned, the eight top corners of the hanging type air freight container are provided with container connecting seats, and when the container connecting seats at the corresponding positions of two adjacent hanging type air freight containers are aligned, the adjacent container connecting seats can be firmly connected through a special container connector;
the specific connection method is as follows: the container connector is inserted into a container connecting seat on the container A, then the connector lock catch is rotated by 90 degrees to lock the container connector and the container A, then the container connecting seat at the corresponding position on the container B is aligned with the container connector and inserted, and then the connector lock catch is rotated by 90 degrees to lock the container connector on the container B and the adjacent hanging type air transport container.
By adopting the connecting method, a plurality of hanging air containers with different specifications can be connected into a hanging air container assembly, the hanging air container assembly can be hung into a cargo hold once during loading, and the hanging air container assembly can be detached from the cargo hold once during unloading.
The container connector is a connecting device of adjacent hanging type air freight containers, is also a lifting stress point and a fixed point of a cargo compartment door type lifting arm, when loading, the width adjusting motor and the lifting motor drive the lifting rod to move outwards and downwards to leave a loading space, and when the hanging type air freight container or the hanging type air freight container assembly reaches a loading position, the width adjusting motor and the lifting motor drive the lifting rod to move inwards and upwards to enable a lifting fork to hook the bottom of a bearing block of the container connector and lift the hanging type air freight container or the hanging type air freight container assembly to reach the hanging position;
when unloading, the lifting motor drives the lifting rod to move downwards, and after the hanging type air freight container or the hanging type air freight container assembly reaches the unloading position, the lifting motor and the width adjusting motor sequentially drive the lifting rod to move downwards and outwards, so that the lifting fork is separated from the container connector, and unloading is completed;
when loading, the loading and unloading pallet truck conveys the hanging type air freight container or the hanging type air freight container assembly to the lower part of the cargo cabin, and lifts to the loading position of the door type lifting arm, and the door type lifting arm finishes loading; when unloading, the empty loading and unloading pallet truck is driven into the alignment position below the hanging air freight container or the hanging air freight container assembly, the lifting pallet supports the corresponding box body, and after the door type lifting arm finishes the separation from the container, the loading and unloading pallet truck descends the pallet to drive to the goods stacking area.
The utility model provides a whole cargo hold freight aircraft of hanging modularization, includes whole cargo hold structure, a pair of wing, aircraft nose structure, rotor subassembly, aircraft tail structure, fin mechanism and undercarriage subassembly, the whole cargo hold structure of the whole cargo hold of hanging modularization structure, a pair of wing are installed respectively in whole cargo hold structure's wing connection structure both sides, aircraft nose structure installs in whole cargo hold structure's nose tie-beam department, the tip at aircraft nose structure is installed to the rotor subassembly, aircraft tail structure installs at whole cargo hold structure's afterbody, fin mechanism installs at aircraft tail structure's top, undercarriage subassembly installs in whole cargo hold structure's bottom.
Optionally, the rotor assembly employs a single-shot propeller.
Alternatively, the landing gear assembly may be a three-point landing gear with the main landing gear of the landing gear assembly mounted to the bottom of the drop support structure of the overall cargo structure and the nose landing gear mounted to the bottom of the nose bridge.
Through adopting above-mentioned technical scheme, the cargo hold part of freight transportation aircraft adopts the structure of the whole cargo hold of a hanging modularization, modularization aircraft structural design, the cargo hold size can be according to the demand change to can be according to the size design assorted aircraft module of cargo hold, form serialization cargo hold and freight transportation aircraft model, the aircraft wholly adopts the first three-point undercarriage, whole cargo hold structure both sides have sagging bearing structure for support the aircraft main landing gear of installing in cargo hold both sides underframe, the nose landing gear of aircraft is installed in the aircraft nose tie-beam.
In summary, the present invention includes at least one of the following beneficial technical effects:
(1) The modular aircraft structure design is adopted, the size of the cargo hold of the freight aircraft can be changed according to the requirement, and matched aircraft modules can be designed according to the size of the cargo hold, so that a serialized cargo hold and freight aircraft models are formed;
(2) Aiming at the design of the hung goods, the problem of the bottom plate structure is not needed to be considered, the dead weight of the aircraft can be reduced, and the manufacturing and transportation cost is reduced;
(3) The movable door type lifting arm is designed in the cargo hold, so that the cargo hold can automatically move along the bearing sliding rail with the cargo box, and the gravity center of the aircraft is ensured to be stable after air drop;
(4) The hanging cargo hold is quick and convenient for loading and unloading cargoes;
(5) The use of the container is modularized, the combination and the matching of the goods are more flexible.
Drawings
FIG. 1 is a schematic view of a structure of a hanging modular integral cargo hold of the present invention;
FIG. 2 is a schematic illustration of a connection of a hanging modular integral cargo bay to an aircraft in accordance with the present invention;
FIG. 3 is a schematic illustration of a connection of a hanging modular integral cargo bay to an aircraft nose in accordance with the present invention;
FIG. 4 is a schematic illustration of the installation of an aircraft landing gear of a cargo aircraft of the present invention with a hanging modular integrated cargo hold;
FIG. 5 is a schematic view of a door of a hanging modular integrated cargo hold of the present invention;
FIG. 6 is a schematic view of the door opening of a hanging modular integrated cargo hold of the present invention;
FIG. 7 is a schematic illustration of a hanging modular integrated cargo hold container shipment of the present invention;
FIG. 8 is a schematic view of a door lift arm assembly of a hanging modular integrated cargo hold of the present invention;
FIG. 9 is a schematic illustration of a hanging air cargo container connection of a hanging modular integrated cargo hold of the present invention;
FIG. 10 is a schematic illustration of a hanging air cargo container assembly of a hanging modular integrated cargo hold of the present invention;
FIG. 11 is a schematic illustration of an air cargo container hitching method of a hitching modular integrated cargo hold of the present invention;
FIG. 12 is a schematic view of a pallet truck-supported air cargo container of a hanging modular integrated cargo hold of the present invention;
FIG. 13 is a schematic view showing the combination of a hanging beam and a cross beam of a hanging parachute-free air drop box of a hanging modular integral cargo hold of the present invention;
FIG. 14 is a schematic view of a hanging parachute-free air drop box of a hanging modular integral cargo compartment of the present invention;
fig. 15 is a schematic view of the structure of a cargo aircraft of a hanging modular integrated cargo hold of the present invention.
Reference numerals illustrate: 1. grid type force bearing frame; 2. a cargo hold frame; 3. a sagging support structure; 4. a wing connection structure; 5. the machine head is connected with the beam; 6. a wing load bearing structure; 7. a main landing gear; 8. a nose landing gear; 9. a flat-open tail cabin door; 10. folding split bottom cabin door; 11. a gantry crane lifting arm; 111. a cross beam; 112. a width adjustment motor; 113. a lifting motor; 114. a lifting rod; 115. a wire rope; 12. a bearing slide rail; 13. lifting fork; 14. hanging type air transport container; 15. a container connecting seat; 16. a container connector; 161. a middle block; 162. a connector latch; 163. a bearing block; 18. a hanging air cargo container assembly; 19. loading and unloading the pallet truck; 20. a hanging groove; 21. hanging a lock tongue; 22. hanging a beam; 221. a hanging beam body; 222. aviation hook; 23. hanging type parachute-free air drop box; 300. a wing; 301. aircraft nose structure; 302. a rotor assembly; 303. an aircraft tail structure; 304. and the tail wing mechanism.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses a hanging modularized integral cargo hold and an upper single-wing cargo aircraft.
Referring to fig. 1-15, embodiment 1, a hanging modular integrated cargo hold, comprising a grid type load-carrying frame 1, a cargo hold frame 2, a drop-down supporting structure 3, a wing connecting structure 4, a nose connecting beam 5, a flat-open type tail cabin door 9, a folding type split-bottom cabin door 10, a pair of load-carrying slide rails 12 and a plurality of door type lifting/lowering arms 11, wherein the grid type load-carrying frame 1 is arranged at the top of the cargo hold frame 2, the wing connecting structure 4 for connecting wings is arranged at the top of the grid type load-carrying frame 1, the drop-down supporting structure 3 is respectively arranged at two sides of the cargo hold frame 2, one end of the cargo hold frame 2 is provided with a nose connecting beam 5, the flat-open type tail cabin door 9 is installed at the other end of the cargo hold frame 2 in an openable manner, the folding type split-bottom cabin door 10 is installed at the bottom of the cargo hold frame 2, the pair of load-carrying slide rails 12 are respectively installed at the bottom of the grid type load-carrying frame 1, the door type lifting/lowering arms 11 are respectively installed on the sliders of the pair of load-carrying slide rails 12 and move along the direction of the load-carrying slide rails 12, the door type lifting/lowering arms 11 are used for hanging the hanging container 14 to be fixed at the position of the hanging container 14 when the empty container is hung.
The grid type bearing frame 1 is formed by mutually fixing a plurality of bearing beams which are connected in a crisscross manner.
The central position of the grid type bearing frame 1 is provided with a wing connecting structure 4, the wing connecting structure 4 can be fixedly connected with a wing bearing structure 6, the cargo hold cabin body is firmly connected with the wings of the aircraft, and the cargo hold is only suitable for an aircraft with a single wing structure; the rear end of the grid type bearing frame 1 of the cargo hold is fixedly connected with the vertical tail wing and the horizontal tail wing of the aircraft, so that the cargo hold is fixedly connected with the tail of the aircraft, and the aircraft nose connecting beam 5 at the front end of the grid type bearing frame 1 of the cargo hold is fixedly connected with the aircraft nose, so that the cargo hold body is fixedly connected with the aircraft nose;
the two sides of the cargo hold are provided with a sagging supporting structure 3 for supporting a main undercarriage 7 of the airplane, which is arranged on a lower frame at the two sides of the cargo hold, and a nose undercarriage 8 of the airplane is arranged on a nose connecting beam 5;
the cargo hold can be opened from the bottom and the rear for loading and unloading cargoes from the bottom and the rear, the bottom is provided with a folding split bottom cabin door 10 which can be closed and locked after the cargo loading and unloading are completed, the rear cabin door is a double-side flat-open type tail cabin door 9, and when the rear part of the cargo hold is loaded and unloaded, the flat-open type tail cabin door 9 is flat-opened to two sides, so that other bearing and carrying equipment such as a forklift can be allowed to drive into the cargo hold from the rear for loading and unloading;
the modular aircraft structure design, the size of the cargo hold can be changed according to the requirement, and matched aircraft modules can be designed according to the size of the cargo hold, so that a serialized cargo hold and a freight aircraft model are formed.
Aiming at the design of the hung goods, the problem of the bottom plate structure is not needed to be considered, the dead weight of the aircraft can be reduced, and the manufacturing and transportation cost is reduced;
the movable door type lifting arm 11 is designed in the cargo hold, the two sides of the grid type bearing frame 1 at the top of the cargo hold are respectively provided with a fixed bearing slide rail 12, the bearing slide rails 12 are used for installing and fixing the door type lifting arm 11, the door type lifting arm 11 can transversely slide along the bearing slide rails 12 so as to adapt to the hanging positions of different freight containers, and after the hanging positions are determined, the door type lifting arm 11 can be locked at the positions of the bearing slide rails 12; the cargo hold cannot be loaded with bulk cargo, and must be matched with a special hanging air cargo container 14, the number of the door type lifting arms 11 can be adjusted according to the length of the cargo hold and the number of the shipping air cargo containers, usually not less than two door type lifting arms 11 are used for loading and unloading the hanging air cargo container 14, bear the weight of the hanging air cargo container 14 and fix the container body, so that the container body cannot move in an obvious position in flight, the cargo is well kept and the stability of the gravity center of an airplane is ensured, and the stability of the gravity center of the airplane after air drop is ensured.
In embodiment 2, the gantry crane boom 11 includes a cross beam 111, a pair of width adjustment motors 112, a pair of lift motors 113, a pair of lift rods 114, a plurality of wire ropes 115, and a pair of lift forks 13, wherein the top of the cross beam 111 is respectively mounted on the sliders of the pair of load-bearing rails 12 through connection blocks, the width adjustment motors 112 are mounted on the cross beam 111, the lift rods 114 include a telescopic portion and a lifting portion, the pair of lift rods 114 are respectively connected to both sides of the cross beam 111 through the telescopic portion, the pair of width adjustment motors 112 respectively drive the lift rods 114 to horizontally move in a direction of 90 ° included angle on the axis of the aircraft through the wire ropes 115, the lift forks 13 are respectively disposed inside the lifting portions of the pair of lift rods 114, the pair of lift forks 13 are respectively mounted on the cross beam 111 and drive the lifting portion to vertically move up and down through the wire ropes 115, and the pair of lift forks 13 are used for carrying the hanging type air cargo container 14.
The gantry crane lifting arm 11 is composed of a cross beam 111, a width adjusting motor 112, a lifting motor 113, a lifting rod 114, a steel cable 115 and a lifting fork 13, wherein the width adjusting motor 112 is used for driving the lifting rod 114 to horizontally move in the direction of an included angle of 90 degrees on the axis of the airplane, the lifting motor 113 is used for driving the lifting rod 114 to vertically move up and down, and the width adjusting motor 112 and the lifting motor 113 are both fixed on the cross beam 111 and driven by the steel cable 115 and a pulley, and the lifting fork 13 is used for bearing force and fixing a container.
In embodiment 3, the gantry crane boom 11 further comprises a hanging beam 22 for bearing and hanging, fixing and hanging an umbrella-free air drop box 23, the hanging beam 22 comprises two hanging bolts 21, a hanging beam body 221 and a plurality of aviation hooks 222, a groove parallel to the longitudinal axis of the aircraft is arranged below the cross beam 111, the two hanging bolts 21 are respectively arranged on two sides of the inner wall of the groove and along the longitudinal axis direction of the aircraft, a hanging groove 20 is respectively arranged on the left side and the right side of the hanging beam body 221 along the longitudinal axis direction of the aircraft, the outer dimension of the hanging beam body 221 is matched with the inner dimension of the groove of the cross beam 111, and the cross beam 111 is upwards arranged; during hanging, the hanging lock tongue 21 is retracted, after the hanging beam body 221 is completely embedded into the hanging groove 20, the hanging beam body is rebounded and inserted into the hanging groove 20, the combination of the hanging beam and the cross beam 111 is completed, and a plurality of aviation hooks 222 are respectively arranged on the bottom surface of the hanging beam body 221 and used for hanging and putting the hanging type parachute-free air drop box 23.
The cross beam 111 can also be used for bearing and hanging a hanging beam 22 for fixing a hanging type parachute-free air drop box, a cargo hold supports the hanging type parachute-free air drop box 23, a groove parallel to the longitudinal axis of the airplane is arranged below the cross beam 111 of the portal crane lifting arm 11, two hanging lock bolts 21 are arranged on two sides of the inner wall of the groove along the longitudinal axis direction of the airplane, a hanging groove 20 is respectively arranged on the left side and the right side of a hanging beam body 221 of the hanging type parachute-free air drop box along the longitudinal axis direction of the airplane, the outer dimension of the hanging beam body 221 is matched with the inner dimension of the groove of the cross beam 111, and the cross beam 111 can be upwards arranged; during hanging, the hanging lock tongue 21 is retracted, after the hanging beam body 221 is fully embedded into the hanging groove 20 and then is rebounded and inserted into the hanging groove 20, the combination of the hanging beam and the cross beam 111 is completed, the bottom surface of the hanging beam body 221 is provided with an aviation hook 222 with an automatic unhooking function, the aviation hook 222 can release the hanging type parachute-free air drop box 23 mounted on the hanging type girder body according to instructions, the hanging type parachute-free air drop box 23 directly drops an airplane from a lower loading and unloading port of a belly, after the hanging type parachute-free air drop box 23 is dropped by the air, the buffer equipment in the hanging type parachute-free air drop box 23 is utilized to reduce the speed, so that the hanging type parachute-free air drop box 23 does not bear excessive impact when falling to the ground, and the integrity of goods in the box is ensured.
In embodiment 4, a plurality of hanging air containers 14 are respectively mounted on a door type crane lifting arm 11 through a plurality of container connectors 16, eight top corners of each hanging air container 14 are respectively provided with a container connecting seat 15, and when container connecting seats 15 at corresponding positions of two adjacent hanging air containers 14 are aligned, adjacent container connecting seats 15 are connected through the container connectors 16.
In embodiment 5, the container connecting base 15 is provided with an insertion hole and a hollow portion, the container connector 16 includes a middle block 161, a pair of connector catches 162 and a pair of bearing blocks 163, the two sides of the middle block 161 are respectively provided with a pair of bearing blocks 163, the ends of the pair of bearing blocks 163 are respectively provided with a pair of connector catches 162, and when the pair of connector catches 162 are respectively inserted into the insertion hole of the container connecting base 15 and are completely placed in the hollow portion, the pair of connector catches 162 are locked in the hollow portion of the container connecting base 15 by rotating the middle block 161 by 90 degrees, so that connection of adjacent container connecting bases 15 is realized.
In embodiment 6, a plurality of hanging air containers 14 with different specifications are respectively connected through container connectors 16 to form a hanging air container assembly 18, and when the hanging air container assembly 18 is loaded, the hanging air container assembly 18 realizes integral loading through one-time lifting, and when the hanging air container assembly 18 is unloaded, the hanging air container assembly 18 realizes integral unloading through one-time lifting.
The hanging air transport container 14 is of a totally-enclosed design, the structure of the container body is basically the same as that of a common container, only the hanging mechanism which is matched with the cargo hold for loading and unloading is redesigned, the eight top corners of the hanging air transport container are provided with container connecting seats 15, and when the container connecting seats 15 at the corresponding positions of two adjacent hanging air transport containers are aligned, the adjacent container connecting seats 15 can be firmly connected through special container connectors 16;
the specific connection method is as follows: the container connector 16 is inserted into the container connecting seat 15 on the container A, the connector lock catch 162 is rotated by 90 degrees to lock the container connector 16 and the container A, the container connecting seat 15 on the container B at the corresponding position is aligned with the container connector 16 and inserted, and the connector lock catch 162 is rotated by 90 degrees to lock the container connector 16 on the container B and the adjacent hanging air transport container 14.
By adopting the connection method, a plurality of hanging type air freight containers 14 with different specifications can be connected into one hanging type air freight container assembly 18, the hanging type air freight container assembly 18 can be hung into a cargo hold once during loading, and the hanging type air freight container assembly 18 can be detached from the cargo hold once during unloading.
The container connector 16 is not only a connecting device of adjacent hanging air containers, but also a lifting stress point and a fixed point of a cargo door type lifting arm, when loading, the width adjustment motor 112 and the lifting motor 113 drive the lifting rod 114 to move outwards and downwards to leave a loading space, and when the hanging air container 14 or the hanging air container assembly 18 reaches a loading position, the width adjustment motor 112 and the lifting motor 113 drive the lifting rod 114 to move inwards and upwards to hook the lifting fork 13 at the bottom of the bearing block 163 of the container connector 16 and lift the hanging air container 14 or the hanging air container assembly 18 to reach the hanging position;
when unloading, the lifting motor 113 drives the lifting rod 114 to move downwards, and after the hanging air freight container 14 or the hanging air freight container assembly 18 reaches the unloading position, the lifting motor 113 and the width adjustment motor 112 sequentially drive the lifting rod 114 to move downwards and outwards, so that the lifting fork 13 is separated from the container connector 16, and unloading is completed;
during loading, the loading and unloading pallet truck 19 conveys the hanging type air freight container 14 or the hanging type air freight container assembly 18 to the lower part of the cargo cabin, and lifts to the loading position of the door type lifting arm 11, and the door type lifting arm 11 finishes loading; when unloading, the empty loading and unloading pallet truck 19 is driven into an alignment position below the hanging air cargo container 14 or the hanging air cargo container assembly 18, the pallet is lifted to support the corresponding box body, and after the door type lifting arm 11 is separated from the container, the loading and unloading pallet truck 19 descends the pallet to a cargo stacking area.
Embodiment 7, a hanging modular cargo hold cargo aircraft, comprising a cargo hold structure, a pair of wings 300, an aircraft nose structure 301, a rotor assembly 302, an aircraft tail structure 303, a tail wing mechanism 304, and landing gear assemblies, wherein the cargo hold structure is a structure of a hanging modular cargo hold, the pair of wings 300 are respectively mounted on two sides of a wing connection structure 4 of the cargo hold structure, the aircraft nose structure 301 is mounted at a nose connection beam 5 of the cargo hold structure, the rotor assembly 302 is mounted at an end of the aircraft nose structure 301, the aircraft tail structure 303 is mounted at a tail of the cargo hold structure, the tail wing mechanism 304 is mounted at a top of the aircraft tail structure 303, and the landing gear assembly is mounted at a bottom of the cargo hold structure.
In example 8, rotor assembly 302 employs a single-shot propeller.
In example 9, the landing gear assembly is a three-point landing gear, the main landing gear 7 of the landing gear assembly is mounted to the bottom of the drop support structure 3 of the overall cargo structure, and the nose landing gear 8 is mounted to the bottom of the nose bridge 5.
The cargo hold part of the cargo aircraft adopts a structure of a hanging modularized integral cargo hold, the modularized aircraft structure is designed, the size of the cargo hold can be changed according to the requirement, and matched aircraft modules can be designed according to the size of the cargo hold to form a series of cargo holds and cargo aircraft models, the aircraft integrally adopts a front three-point landing gear, the two sides of the integral cargo hold structure are provided with a sagging supporting structure 3 for supporting aircraft main landing gears 7 arranged on lower frames at the two sides of the cargo hold, and the front landing gear 8 of the aircraft is arranged on a nose connecting beam 5.
The above embodiments are not intended to limit the scope of the present invention, and therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (8)
1. A hanging modular integral cargo hold, characterized by: the cargo hold comprises a grid type bearing frame (1), a cargo hold frame (2), a sagging supporting structure (3), a wing connecting structure (4), a nose connecting beam (5), a flat-open tail cabin door (9), a folding type split bottom cabin door (10), a pair of bearing sliding rails (12) and a plurality of door type lifting arms (11), wherein the grid type bearing frame (1) is arranged at the top of the cargo hold frame (2), wing connecting structures (4) for connecting wings are arranged at the top of the grid type bearing frame (1), sagging supporting structures (3) are respectively arranged on two side surfaces of the cargo hold frame (2), one end of the cargo hold frame (2) is provided with the nose connecting beam (5), the flat-open tail cabin door (9) can be installed at the other end of the cargo hold frame (2) in an opening and closing mode, the folding type split bottom cabin door (10) can be installed at the bottom of the cargo hold frame (2), the pair of bearing sliding rails (12) are respectively installed at the bottom of the grid type bearing frame (1), the door type lifting arms (11) are respectively installed on the pair of sliding rails (12) and are used for loading and unloading the container in the direction of the lifting arms (14) of the lifting arms, after the hanging air freight container (14) moves to a set position, fixing the hanging air freight container (14);
the portal crane lifting arm (11) comprises a cross beam (111), a pair of width adjustment motors (112), a pair of lifting motors (113), a pair of lifting rods (114), a plurality of steel ropes (115) and a pair of lifting forks (13), wherein the top of the cross beam (111) is respectively arranged on the sliding blocks of a pair of bearing sliding rails (12) through connecting blocks, the width adjustment motors (112) are arranged on the cross beam (111), the lifting rods (114) comprise telescopic parts and lifting parts, the pair of lifting rods (114) are respectively connected to two sides of the cross beam (111) through the telescopic parts, the pair of width adjustment motors (112) respectively drive the lifting rods (114) to horizontally move in an included angle direction of 90 degrees on the axis of an airplane through the steel ropes (115), the lifting forks (13) are respectively arranged on the inner sides of the lifting parts of the pair of the lifting rods (114), the lifting motors (113) are respectively arranged on the cross beam (111), and the lifting parts are driven to move vertically upwards and downwards through the steel ropes (115), and the pair of lifting forks (13) are used for bearing a hanging type air container (14);
the door type lifting crane boom (11) further comprises a hanging beam (22) for bearing and hanging a fixed hanging type parachute-free air drop box (23), the hanging beam (22) comprises two hanging lock bolts (21), a hanging beam body (221) and a plurality of aviation hooks (222), grooves parallel to the longitudinal axis of the aircraft are formed below the cross beam (111), the two hanging lock bolts (21) are respectively arranged on two sides of the inner wall of the grooves and along the longitudinal axis direction of the aircraft, a hanging groove (20) is formed in each of the left side and the right side of the hanging beam body (221) along the longitudinal axis direction of the aircraft, the outer dimension of the hanging beam body (221) is matched with the inner dimension of the grooves of the cross beam (111), and the grooves of the cross beam (111) are upwards filled; during hanging, the hanging lock tongue (21) is retracted, after the hanging beam body (221) is completely embedded into the hanging groove (20), the hanging beam body is rebounded and inserted into the hanging groove (20), the combination of the hanging beam and the cross beam (111) is completed, and a plurality of aviation hooks (222) are respectively arranged on the bottom surface of the hanging beam body (221) and used for hanging and putting the hanging type parachute-free air drop box (23).
2. The hanging modular integrated cargo hold of claim 1 wherein: the grid type bearing frame (1) is formed by mutually fixing a plurality of bearing beams which are connected in a crisscross manner.
3. The hanging modular integrated cargo hold of claim 1 wherein: a plurality of hanging air containers (14) are respectively mounted on a door type lifting arm (11) through a plurality of container connectors (16), eight top corners of each hanging air container (14) are respectively provided with a container connecting seat (15), and when the container connecting seats (15) at corresponding positions of two adjacent hanging air containers (14) are aligned, the adjacent container connecting seats (15) are connected through the container connectors (16).
4. A hanging modular integrated cargo hold as defined in claim 3 wherein: the container connecting seat (15) is provided with an insertion hole and a hollow part, the container connector (16) comprises a middle block (161), a pair of connector locks (162) and a pair of bearing blocks (163), the two sides of the middle block (161) are respectively provided with the pair of bearing blocks (163), the end parts of the pair of bearing blocks (163) are respectively provided with the pair of connector locks (162), and when the pair of connector locks (162) are respectively inserted into the insertion hole of the container connecting seat (15) and are completely placed in the hollow part, the middle block (161) is rotated by 90 degrees, and the pair of connector locks (162) are locked in the hollow part of the container connecting seat (15) to realize the connection of the adjacent container connecting seat (15).
5. The hanging modular integrated cargo hold of claim 4 wherein: a plurality of hanging air containers (14) with different specifications are respectively connected through container connectors (16) to form a hanging air container assembly (18), when the hanging air container assembly (18) is used for loading, the hanging air container assembly (18) is used for realizing integral loading through one-time lifting, and when the hanging air container assembly (18) is used for unloading, the hanging air container assembly (18) is used for realizing integral unloading through one-time lifting.
6. A hanging modular cargo unit cargo aircraft, characterized by: including whole cargo hold structure, a pair of wing (300), aircraft nose structure (301), rotor subassembly (302), aircraft tail structure (303), fin mechanism (304) and undercarriage subassembly, whole cargo hold structure adopts a structure of hanging modular whole cargo hold of claim 5, a pair of wing (300) are installed respectively in whole cargo hold structure's wing connection structure (4) both sides, aircraft nose structure (301) are installed in whole cargo hold structure's nose tie-beam (5) department, rotor subassembly (302) are installed at aircraft nose structure's (301) tip, aircraft tail structure (303) are installed at whole cargo hold structure's afterbody, fin mechanism (304) are installed at aircraft tail structure's (303) top, undercarriage subassembly is installed in whole cargo hold structure's bottom.
7. A hanging modular integrated cargo hold cargo aircraft as defined in claim 6 wherein: the rotor assembly (302) employs a single-shot propeller.
8. A hanging modular integrated cargo hold cargo aircraft as defined in claim 6 wherein: the landing gear assembly adopts a three-point landing gear, a main landing gear (7) of the landing gear assembly is arranged at the bottom of a drooping supporting structure (3) of the whole cargo hold structure, and a nose landing gear (8) is arranged at the bottom of a nose connecting beam (5).
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| CN202311422212.4A CN117163278B (en) | 2023-10-31 | 2023-10-31 | Hanging modularized integral cargo hold and upper single-wing cargo aircraft |
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| CN202311422212.4A CN117163278B (en) | 2023-10-31 | 2023-10-31 | Hanging modularized integral cargo hold and upper single-wing cargo aircraft |
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| CN117163278A (en) | 2023-12-05 |
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