Aviation ULD loading and unloading system and loading and unloading method

Abstract

The invention belongs to the technical field of aviation logistics, and particularly discloses an aviation ULD loading and unloading system and method.The aviation ULD loading and unloading system comprises a conveying module, a lifting module, a splitting module and a control module, the conveying module is used for conveying ULDs to the position close to or away from the upper portion of the lifting module, and the splitting module is used for splitting the ULDs; the conveying module comprises a conveying mechanism and a conveying detection piece used for detecting the conveying position. The lifting module is used for driving the ULD to move vertically and comprises a lifting mechanism and a lifting detection piece used for detecting the lifting position; the splitting module comprises a plurality of sets of supporting mechanisms, and each supporting mechanism comprises a supporting plate used for being inserted into the lower portion of the ULD, a splitting driving piece used for driving the supporting plate to move and a splitting detection piece used for detecting the movement position of the supporting plate or the movement stroke of the splitting driving piece. By adopting the scheme of the invention, the problem of how to mature fork the aviation ULDs and transfer the aviation ULDs can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation logistics, and in particular relates to an aviation ULD loading and unloading system and a loading and unloading method. Background Art

[0002] Aviation ULDs are large in size, thin in thickness, poor in rigidity, heavy in load, and large in deformation. To ensure their safe transfer, airlines and airports require that forklifts must not be used to directly pick up ULDs carrying cargo. In other words, forklifts must not be directly inserted into the lower end of the ULD and then the ULD is picked up, which can easily damage the ULD.

[0003] In terms of transshipment, domestic and foreign countries usually use TV and ETV transshipment solutions, which have the common feature of using roller conveyor surfaces as cargo platforms. TV and ETV technologies have long been monopolized by foreign multinational companies, with problems such as high patent barriers, high construction costs, and extremely heavy equipment. In terms of storage, domestic and foreign countries mainly use ETV storage storage solutions, designing each cargo grid as a roller conveyor, and using the friction wheels of ETV vehicles to drive roller conveyors to achieve the input and output of goods. This has problems such as poor safety, extremely high construction costs, and difficult maintenance and repair. Therefore, how to maturely pick up aviation ULDs and perform transshipment storage has become a technical problem. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aviation ULD loading and unloading system and method to solve the problem of how to fork and transport the aviation ULD.

[0005] According to an embodiment of the present invention, the present invention adopts the following technical solution: An aviation ULD loading and unloading system includes a conveying module, a lifting module, a splitting module and a control module. The conveying module is used to convey the ULD to a position close to or away from the top of the lifting module. The conveying module includes a conveying mechanism and a conveying detection member for detecting the conveying position; the lifting module is used to drive the ULD to move vertically. The lifting module includes a lifting mechanism and a lifting detection member for detecting the lifting position; the splitting module includes multiple groups of supporting mechanisms, and the supporting mechanisms include a supporting plate for inserting under the ULD, a splitting driving member for driving the movement of the supporting plate, and a splitting detection member for detecting the movement position of the support plate or the movement stroke of the splitting driving member; the control module includes a controller, and the controller is signal-connected to the conveying module, the lifting module, and the splitting module. The controller controls the conveying of the conveying mechanism by receiving a detection signal from the conveying detection member, controls the movement of the lifting mechanism by receiving a detection signal from the lifting detection member, and controls the movement of the splitting driving member by receiving a detection signal from the splitting detection member.

[0006] Furthermore, the conveying mechanism includes a conveying drive and multiple groups of conveying components arranged in a matrix. The conveying components include a conveying chain and a driving sprocket and a passive sprocket for chain transmission with the conveying chain. The conveying drive is used to drive the driving sprockets of the multiple groups of conveying components to rotate synchronously.

[0007] Furthermore, the conveying assembly also includes a tensioning sprocket that is driven by the conveying chain, and the driving sprocket, the driven sprocket, and the tensioning sprocket are arranged in a triangular structure.

[0008] Furthermore, the conveying drive member includes a plurality of conveying transmission shafts respectively connected to a plurality of driving sprockets and a conveying connecting member for connecting adjacent conveying transmission shafts. The conveying drive member also includes a conveying motor for driving at least one of the conveying transmission shafts to rotate.

[0009] Furthermore, the lifting mechanism includes a lifting drive and multiple lifting components. The lifting components include a lifting platform arranged to slide vertically. The lifting drive is used to drive the lifting platforms of the multiple lifting components to rise and fall synchronously.

[0010] Furthermore, the lifting assembly includes a screw rod for driving the lifting platform to lift and lower, and a nut threadedly connected to the screw rod. The lifting drive component includes multiple groups of lifting transmission shafts that respectively transmit to multiple nuts and drive the nuts to rotate, and a lifting connecting component for connecting adjacent lifting transmission shafts. The lifting drive component also includes a lifting motor for driving at least one of the lifting transmission shafts to rotate.

[0011] Furthermore, the split driving member includes a push rod arranged to slide vertically and a mounting plate hinged on the push rod, the support plate is mounted on the mounting plate, and the split detection member is used to detect the sliding stroke of the push rod.

[0012] Furthermore, the middle part of the support plate is hinged on the mounting plate, one end of the support plate is used to support the ULD, and the other end of the support plate is hinged with a sliding rod, a limit plate is fixed on the mounting plate, the sliding rod is slidably connected to the limit plate, and a spring is connected between the sliding rod and the limit plate.

[0013] Furthermore, one end of the support plate used to support the ULD is rotatably connected to a roller.

[0014] According to an embodiment of the present invention, the present invention adopts the following technical solution: Aviation ULD loading and unloading methods, using aviation ULD loading and unloading systems, including input mode and output mode; The output mode includes the following steps: A1. The ULD is transported to the top of the lifting mechanism through the conveying mechanism. After the ULD is transported to the designated position through the conveying detection part, the conveying mechanism stops conveying; A2. The ULD is driven up by the lifting mechanism. After the lifting mechanism is detected by the lifting detection part to rise to the specified position, the lifting mechanism stops rising; A3. Insert the support plate under the ULD. After the split detection part detects that the support plate has completed supporting the ULD, the support plate stops moving. A4. The lifting mechanism descends back to the initial position; the forklift is inserted into the gap between the conveying mechanism and the ULD, driving the support plate to move and the ULD to detach, and the forklift can drive the ULD to move; The input mode consists of the following steps: B1. Use a forklift to drive the ULD to the top of the conveying mechanism, insert the support plate under the ULD, and after the split detection part detects that the support plate has completed supporting the ULD, the support plate stops moving, and the forklift leaves the gap between the conveying mechanism and the ULD; B2. After the lifting mechanism rises and contacts the bottom of the ULD, it drives the support plate to move and separate from the ULD; B3. Drive the ULD down through the lifting mechanism so that the ULD contacts the conveying mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this solution, through the cooperation of the conveying module, the lifting module and the splitting module, after the ULD is lifted by the lifting module, the ULD and the lifting module are separated by the splitting module, so that the ULD is suspended in the air, so that the forklift can be inserted into the gap between the ULD and the conveying module for fork picking, which solves the problem that the ULD cannot be directly transported by fork picking. This solution has a simple structure, is easy to operate, and assists the forklift in fork picking, effectively reducing the transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of the overall structure of an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the structure of the conveying mechanism in an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the structure of the conveying assembly in an embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of the conveying drive member in an embodiment of the present invention.

[0020] Figure 5 Schematic diagram of the structure of the lifting mechanism in the embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the lifting platform, the screw rod and the nut in the embodiment of the present invention.

[0022] Figure 7 Schematic diagram of a design method of the support mechanism in an embodiment of the present invention.

[0023] Figure 8 Schematic diagram of a design method of the support mechanism in an embodiment of the present invention.

[0024] Fig. 9 for Figure 8 Schematic diagram of the structure of the middle support plate and the sliding rod.

[0025] Fig.10 Schematic diagram of a design method of the support mechanism in an embodiment of the present invention.

[0026] Fig.11 Schematic diagram of the coordination between the rack module and the tray in an embodiment of the present invention.

[0027] In the figure: 101, conveying mechanism; 102, lifting mechanism; 103, supporting mechanism; 104, rack module; 105, tray; 201, conveying assembly; 202, conveying drive member; 301, conveying chain; 302, passive sprocket; 303, tensioning sprocket; 304, driving sprocket; 305, connecting plate; 307, conveying drive shaft; 308, conveying coupling; 401, conveying motor; 402, reducer; 403, conveying Feeding horizontal axis; 405, conveying commutator; 501, lifting motor; 502, screw; 503, lifting horizontal axis; 504, lifting platform; 505, lifting transmission shaft; 506, lifting commutator; 507, nut; 601, push rod; 602, mounting plate; 603, roller; 604, spring; 605, strip groove; 606, limit plate; 607, slide plate; 608, support plate; 609, slide bar; 610, proximity sensor. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given. like Figure 1 As shown, the aviation ULD loading and unloading system includes a conveying module, a lifting module, a splitting module and a control module. In the actual design process, the ULD can be transferred directly, and can also be transferred in combination with a pallet 105 commonly used in aviation logistics, that is, the ULD is placed on the pallet 105, and the ULD is transferred by transferring the pallet 105. In this embodiment, the use of the pallet 105 is used as an example for explanation. By designing the shape and material of the pallet 105, it can be more convenient to use in combination with the conveying module, the lifting module and the splitting module.

[0029] In the actual design process, combined with Fig.11 As shown, it also includes a rack module 104, which is used to install the conveying module, the lifting module, and the splitting module. The rack module 104 is welded with square tube profiles.

[0030] The conveying module is used to convey the ULD to a position close to or far from the upper part of the lifting module. The conveying module includes a conveying mechanism 101 and a conveying detection member for detecting the conveying position. Figure 2 , Figure 3 As shown, the conveying mechanism 101 includes a conveying drive 202 and a plurality of groups of conveying components 201 arranged in a matrix, and the conveying component 201 includes a connecting plate 305 fixed on the rack module 104, a conveying chain 301, and a driving sprocket 304 and a passive sprocket 302 for chain transmission with the conveying chain 301. The driving sprocket 304 and the passive sprocket 302 are both rotatably connected to the connecting plate 305, and in the actual assembly process, a bearing is installed between the driving sprocket 304 and the connecting plate 305, and a bearing is also installed between the passive sprocket 302 and the connecting plate 305 to ensure the stability of the transmission. When the driving sprocket 304 rotates, the conveying chain 301 can be driven to move by chain transmission, and the conveying chains 301 of the plurality of conveying components 201 provide stable and safe transportation for the ULD. The upper surface of the conveying chain 301 is flush with the reference plane 702 or slightly higher than the reference plane 702 to meet the conveying conditions.

[0031] In the actual design process, in order to ensure the tension of the conveying chain 301, the conveying assembly 201 also includes a tensioning sprocket 303 that is chain-driven with the conveying chain 301, a slider is slidably connected to the connecting plate 305, the tensioning sprocket 303 is rotatably connected to the slider, and the driving sprocket 304, the driven sprocket 302, and the tensioning sprocket 303 are arranged in a triangular structure. By adjusting the position of the tensioning sprocket 303, the tensioning sprocket 303 is constantly tensioning the conveying chain 301, and a cylinder for driving the slider to slide is installed on the mounting plate 602.

[0032] Combination Figure 4 As shown, the conveying drive 202 is used to drive the driving sprockets 304 of multiple groups of conveying components 201 to rotate synchronously. Specifically, the conveying drive 202 includes multiple groups of conveying drive shafts 307 respectively connected to multiple driving sprockets 304 and conveying connecting members for connecting adjacent conveying drive shafts 307. Specifically, the conveying connecting member can be a conveying coupling 308 or a conveying diverter 405. The conveying drive 202 also includes a conveying motor 401 for driving at least one of the conveying drive shafts 307 to rotate.

[0033] Specifically, in this embodiment, combined with Figure 1 As shown, the conveying mechanism 101 is provided with two groups. In the actual design process, according to the size of the ULD to be conveyed, the conveying mechanism 101 can also be provided with multiple groups. Figure 1Taking the direction shown in as an example, a group of conveying mechanisms 101 includes two rows and four columns of conveying components 201, and the conveying drive shafts 307 of multiple groups of conveying components 201 arranged in the transverse direction are connected in sequence through conveying couplings 308. The conveying motor 401 uses a three-phase asynchronous motor in the prior art. In the actual design process, the conveying motor 401 can be selected to connect a conventional reducer 402 in the prior art. The reducer 402 is connected to two conveying transverse shafts 403 through a conveying commutator 405 (a cross commutator in the prior art). The two conveying transverse shafts 403 are respectively connected to the conveying drive shafts 307 of the upper and lower columns of conveying components 201 through a conveying commutator 405 (a cross commutator in the prior art), and then the conveying motor 401 can synchronously drive multiple groups of conveying components 201 to move together. In the actual design process, the multiple groups of conveying components 201 of each group of conveying mechanisms 101 can also be arranged in other ways. The multiple conveying components 201 are driven by a conveying motor 401, thereby ensuring the consistency of the conveying power of the conveying mechanism 101 and also ensuring the stability of the ULD conveying.

[0034] The conveying detection part includes a photoelectric sensor or a distance sensor installed on the rack module 104. The photoelectric sensor of the conveying detection part is set on the side of the rack module 104 and is located higher than the upper surface of the conveying chain 301, so as to detect the pallet 105 or ULD on the conveying chain 301. By detecting the distance between the pallet 105 or ULD on the conveying module and it, it is determined whether the pallet 105 or ULD is transported to the specified position.

[0035] Combination Figure 5 As shown, the lifting module is used to drive the ULD to move vertically. The lifting module includes a lifting mechanism 102 and a lifting detection member for detecting the lifting position. Specifically, the lifting mechanism 102 includes a lifting drive member and multiple lifting components. Figure 6 As shown, the lifting assembly includes a lifting platform 504 and a screw 502 for driving the lifting platform 504 to lift and lower. The lifting platform 504 is connected to the rack module 104 in a vertical sliding manner. The lifting platform 504 is fixed on the screw 502. A nut 507 is rotatably connected to the rack module 104. The nut 507 and the screw 502 are threadedly connected. During the rotation of the nut 507, since the lifting platform 504 is slidably connected to the rack module 104, the screw 502 cannot rotate due to the restriction of the rack module 104. According to the movement principle of the screw mechanism, the screw 502 drives the lifting platform 504 to move vertically. In the actual design process, the screw lift in the prior art can also be directly selected to drive the lifting platform 504.

[0036] The lifting drive is used to drive the lifting platforms 504 of multiple lifting components to rise and fall synchronously, that is, the lifting drive is used to drive multiple groups of nuts 507 to rotate together. Specifically, the lifting drive includes multiple groups of lifting transmission shafts 505 that are respectively driven by multiple nuts 507 and lifting connectors for connecting adjacent lifting transmission shafts 505. Specifically, the lifting connector can be a lifting coupling and / or a lifting commutator 506. The lifting drive also includes a lifting motor 501 for driving at least one of the lifting transmission shafts 505 to rotate.

[0037] Specifically, in this embodiment, combined with Figure 5 As shown, there are four groups of lifting platforms 504, which are respectively located at the four corners of the rack module 104. The lifting motor 501 uses a three-phase asynchronous motor in the prior art. In the actual design process of the lifting motor 501, the lifting motor 501 can be connected to a conventional reducer 402 in the prior art. The reducer 402 is connected to two lifting horizontal shafts 503 through a lifting commutator 506 (a cross commutator in the prior art). The lifting horizontal shaft 503 is connected to a lifting transmission shaft 505 through a lifting commutator 506 (a cross commutator in the prior art). The lifting transmission shaft 505 is connected through a lifting commutator 506 (a cross commutator in the prior art) and a nut 507 to achieve a reversing drive in multiple directions, and then the lifting motor 501 can synchronously drive multiple groups of lifting platforms 504 to move together. By driving multiple groups of lifting platforms 504 with one lifting motor 501, the consistency of the lifting and lowering of the lifting platforms 504 is ensured, and the stability of ULD transportation can also be ensured.

[0038] The lifting detection part includes a photoelectric sensor or a distance sensor installed on the rack module 104. The photoelectric sensor of the lifting detection part is arranged above the conveying detection part. By detecting the distance between the pallet 105 or ULD or lifting platform 504 and it, it is determined whether the pallet 105 or ULD or lifting platform 504 is lifted to the specified position.

[0039] The split module includes multiple sets of support mechanisms 103, combined with Fig.10As shown, the support mechanism 103 includes a support plate 608 for inserting under the ULD, a split drive member for driving the support plate 608 to move, and a split detection member for detecting the moving position of the support plate 608 or the moving stroke of the split drive member. Specifically, in this embodiment, the support plate 608 is connected to the rack module 104 by horizontal sliding, and the split drive member includes a cylinder for driving the support plate 608 to slide horizontally. The support plate 608 can be inserted horizontally under the tray 105, or a groove is provided on the side of the tray 105 so that the support plate 608 can be inserted into the groove, as long as the support plate 608 can support the tray 105 and the ULD thereon in the vertical direction. The split detection member includes a photoelectric sensor or a distance sensor installed on the rack module 104. In this embodiment, the split detection member determines whether the support plate 608 completes the support by detecting the moving position of the support plate 608, specifically, by detecting the distance between the support plate 608 and the support plate 608 through the photoelectric sensor or the distance sensor, to determine whether the support plate 608 moves to the specified position.

[0040] The control module includes a controller, and the controller is a conventional controller controlled by program control logic in the prior art. The controller is signal-connected to the conveying module, the lifting module, and the splitting module. The controller controls the conveying of the conveying mechanism 101 by receiving the detection signal of the conveying detection member, controls the movement of the lifting mechanism 102 by receiving the detection signal of the lifting detection member, and controls the movement of the splitting driving member by receiving the detection signal of the splitting detection member. Specifically, the controller controls the opening and closing of the conveying motor 401 by the detection signal of the conveying detection member, controls the opening and closing of the lifting motor 501 by the detection signal of the lifting detection member, and controls the opening and closing of the splitting driving member by the detection signal of the splitting detection member.

[0041] In another embodiment of the present invention, another design method for splitting the driving member is provided. Specifically, Figure 7 As shown, the split drive member includes a push rod 601 connected to the rack module 104 along a vertical sliding direction and a mounting plate 602 hinged on the push rod 601, and the split drive member also includes a cylinder for driving the push rod 601 to slide. The support plate 608 is installed on the mounting plate 602, and the vertical sliding of the push rod 601 pushes the mounting plate 602 to deflect, thereby driving the support plate 608 to produce a lateral movement. In this embodiment, the split detection member is used to detect the sliding stroke of the push rod 601. Specifically, the split detection member uses a proximity sensor 610 installed on the rack module 104, and determines whether the support plate 608 moves to a specified position by detecting the displacement of the push rod 601.

[0042] During the actual design process, in order to facilitate the adjustment of the position of the proximity sensor 610 so as to adapt to different push rod 601 movement stroke requirements, a strip groove 605 is opened on the rack module 104, and the proximity sensor 610 is slidably connected in the strip groove 605. The proximity sensor 610 can be driven to slide in the strip groove 605 by a cylinder in the prior art, or the staff can manually slide the proximity sensor 610. As long as the proximity sensor 610 is fixed and limited in a conventional manner after sliding, the proximity sensor 610 can be prevented from sliding by itself in the strip groove 605.

[0043] by Figure 7 Taking the direction shown in as an example, the push rod 601 slides downward to push the mounting plate 602 to swing, and the support plate 608 deflects counterclockwise as the mounting plate 602 swings, and the end of the support plate 608 no longer hinders the vertical movement of the tray 105 and the ULD. When the tray 105 needs to be supported, the push rod 601 slides upward, and the support plate 608 gradually becomes horizontal as the mounting plate 602 swings. Figure 7 In the state shown, the end of the support plate 608 supports the tray 105. By detecting the displacement of the push rod 601 through the proximity sensor 610, it can be determined whether the support plate 608 is in a horizontal state or a downward deflected state.

[0044] In another embodiment of the present invention, Figure 8 , Fig. 9 As shown, in order to ensure that the support plate 608 supports and buffers the tray 105 and the ULD, the middle part of the support plate 608 is hinged on the mounting plate 602, so that the support plate 608 forms a lever-like structure on the mounting plate 602, one end of the support plate 608 is used to support the ULD and the end is rotatably connected to the roller 603, and the other end of the support plate 608 is hinged to a slide bar 609, a limit plate 606 is fixed on the mounting plate 602, the slide bar 609 is slidably connected to the limit plate 606, and a spring 604 is connected between the slide bar 609 and the limit plate 606. In the actual design process, a slide plate 607 is slidably connected to the mounting plate 602, the slide plate 607 is located below the limit plate 606, the slide bar 609 and the slide plate 607 are slidably connected, and two groups of springs 604 are provided, one group is connected between the slide plate 607 and the limit plate 606, and the other group is connected between the lower part of the slide bar 609 and the slide plate 607.

[0045] When the end of the support plate 608 deflects downward, it no longer hinders the vertical movement of the tray 105 and the ULD, and the design of the roller 603 can reduce the scraping of the tray 105 and the ULD. When the support plate 608 supports the tray 105 and the ULD, one end of the roller 603 provided on the support plate 608 is subjected to pressure, and the other end of the support plate 608 is subjected to the elastic force of the spring 604. The support plate 608 is supported by the spring 604, so that when the support plate 608 is subjected to excessive pressure, a certain deflection buffer can occur. By selecting a suitable spring 604, while meeting the support requirements of the support plate 608 for the ULD, a buffering effect can also be generated. And there are two groups of springs 604. When the slide bar 609 overcomes the elastic force of the spring 604 located above it, it can drive the slide plate 607 to slide. When the slide plate 607 is restricted by the limit plate 606, the slide bar 609 can continue to overcome the elastic force of the spring 604 located below it and continue to slide. By setting two groups of springs 604, the supporting and buffering effect of the support plate 608 on the ULD is improved.

[0046] The aviation ULD loading and unloading method uses the aviation ULD loading and unloading system in any of the above embodiments, including an input mode and an output mode. The output mode refers to transporting the ULD to a forklift for transfer, and the input mode refers to placing the ULD on the rack module 104 for temporary storage.

[0047] The output mode includes the following steps: A1. The controller controls the conveying mechanism 101 to convey the ULD to the top of the lifting mechanism 102. Specifically, the conveying motor 401 drives the conveying chains 301 of the multiple conveying components 201 to move, and conveys the tray 105 and the ULD on the tray 105 to the rack module 104. After the conveying detection element detects that the ULD is conveyed to the specified position, the controller controls the conveying mechanism 101 to stop conveying, that is, turns off the conveying motor 401.

[0048] A2. The controller controls the lifting mechanism 102 to drive the ULD to rise. Specifically, the lifting motor 501 drives the multiple lifting platforms 504 to move upward to lift the tray 105. After the lifting detection member detects that the lifting mechanism 102 has risen to the specified position, the controller controls the lifting mechanism 102 to stop rising, that is, turns off the lifting motor 501.

[0049] A3. The controller controls the support plate 608 to be inserted under the ULD. Specifically, the split drive member drives the support plate 608 to move so that the support plate 608 is inserted under the tray 105 or into a groove provided on the side of the tray 105, so that the support plate 608 supports the tray 105. After the split detection member detects that the support plate 608 has completed supporting the ULD, the controller controls the support plate 608 to stop moving, i.e., turns off the split drive member.

[0050] A4. Start the lifting motor 501 to drive the lifting platform 504 to move downward, so that the lifting mechanism 102 descends back to the initial position. At this time, there is a space between the tray 105 and the rack module 104. The forklift is inserted into the gap between the conveying mechanism 101 and the tray 105. Then, the split driving member drives the support plate 608 to move, so that the support plate 608 moves away from the tray 105, that is, the support plate 608 moves back to the initial position. At this time, the forklift can drive the ULD to move.

[0051] The input mode includes the following steps: B1. The controller controls the forklift to drive the ULD above the conveying mechanism 101. The controller controls the split driving member to drive the support plate 608 to move, so that the support plate 608 is inserted below the ULD, that is, the support plate 608 is inserted below the tray 105 or into the groove opened on the side of the tray 105. After the split detection member detects that the support plate 608 has completed the support of the ULD, the controller controls the support plate 608 to stop moving, and the forklift leaves the gap between the conveying mechanism 101 and the tray 105.

[0052] B2. The controller controls the lifting motor 501 to drive multiple groups of lifting platforms 504 to move upward. After the lifting mechanism 102 rises and contacts the bottom of the ULD, that is, the lifting platform 504 contacts the bottom of the tray 105, then the controller controls the split driving member to drive the support plate 608 to move, so that the support plate 608 moves away from the tray 105.

[0053] B3. The controller controls the lifting mechanism 102 to drive the ULD to descend, that is, the lifting motor 501 drives multiple groups of lifting platforms 504 to move downward, and the ULD contacts the conveying mechanism 101, that is, the tray 105 contacts the conveying mechanism 101. At this time, it can be selected to convey the ULD away from above the lifting mechanism 102 through the conveying mechanism 101, or the ULD can be directly placed on the rack module 104 for storage.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Aviation ULD loading and unloading system, characterized by: It includes a conveying module, a lifting module, a splitting module and a control module. The conveying module is used to convey the ULD to a position close to or far from the top of the lifting module. The conveying module includes a conveying mechanism and a conveying detection member for detecting the conveying position. The lifting module is used to drive the ULD to move vertically. The lifting module includes a lifting mechanism and a lifting detection member for detecting the lifting position. The splitting module includes multiple groups of supporting mechanisms. The supporting mechanisms include a supporting plate for inserting under the ULD, a splitting driving member for driving the movement of the supporting plate, and a splitting detection member for detecting the movement position of the supporting plate or the movement stroke of the splitting driving member. The control module includes a controller, and the controller is signal-connected to the conveying module, the lifting module, and the splitting module. The controller controls the conveying of the conveying mechanism by receiving a detection signal from the conveying detection part, controls the movement of the lifting mechanism by receiving a detection signal from the lifting detection part, and controls the movement of the splitting driving part by receiving a detection signal from the splitting detection part.

2. The aviation ULD loading and unloading system according to claim 1, characterized in that: The conveying mechanism includes a conveying drive and multiple groups of conveying components arranged in a matrix. The conveying components include a conveying chain and a driving sprocket and a passive sprocket for chain transmission with the conveying chain. The conveying drive is used to drive the driving sprockets of the multiple groups of conveying components to rotate synchronously.

3. The aviation ULD loading and unloading system according to claim 2, characterized in that: The conveying assembly also includes a tensioning sprocket that is chain-driven with the conveying chain, and the driving sprocket, the driven sprocket and the tensioning sprocket are arranged in a triangular structure.

4. The aviation ULD loading and unloading system according to claim 2, characterized in that: The conveying drive member includes a plurality of conveying transmission shafts respectively connected to a plurality of driving sprockets and a conveying connecting member for connecting adjacent conveying transmission shafts. The conveying drive member also includes a conveying motor for driving at least one of the conveying transmission shafts to rotate.

5. The aviation ULD loading and unloading system according to claim 1, characterized in that: The lifting mechanism includes a lifting drive and multiple lifting components. The lifting components include a lifting platform arranged to slide vertically. The lifting drive is used to drive the lifting platforms of the multiple lifting components to rise and fall synchronously.

6. The aviation ULD loading and unloading system according to claim 5, characterized in that: The lifting assembly includes a screw rod for driving the lifting platform to lift and lower, and a nut threadedly connected to the screw rod. The lifting drive component includes multiple groups of lifting transmission shafts that respectively transmit to multiple nuts and drive the nuts to rotate, and a lifting connecting component for connecting adjacent lifting transmission shafts. The lifting drive component also includes a lifting motor for driving at least one of the lifting transmission shafts to rotate.

7. The aviation ULD loading and unloading system according to claim 1, characterized in that: The split driving member comprises a push rod arranged to slide vertically and a mounting plate hinged on the push rod, the support plate is mounted on the mounting plate, and the split detecting member is used to detect the sliding stroke of the push rod.

8. The aviation ULD loading and unloading system according to claim 7, characterized in that: The middle part of the support plate is hinged on the mounting plate, one end of the support plate is used to support the ULD, the other end of the support plate is hinged with a slide bar, a limit plate is fixed on the mounting plate, the slide bar is slidably connected to the limit plate, and a spring is connected between the slide bar and the limit plate.

9. The aviation ULD loading and unloading system according to claim 8, characterized in that: The support plate is used to support one end of the ULD and is rotatably connected to a roller.

10. A method for loading and unloading an aviation ULD, characterized by: Use of the aviation ULD loading and unloading system as claimed in any one of claims 1 to 9, comprising an input mode and an output mode; The output mode includes the following steps: A1. The ULD is transported to the top of the lifting mechanism through the conveying mechanism. After the ULD is transported to the designated position through the conveying detection part, the conveying mechanism stops conveying; A2. The ULD is driven up by the lifting mechanism. After the lifting mechanism is detected by the lifting detection part to rise to the specified position, the lifting mechanism stops rising; A3. Insert the support plate under the ULD. After the split detection part detects that the support plate has completed supporting the ULD, the support plate stops moving. A4. The lifting mechanism descends back to the initial position; the forklift is inserted into the gap between the conveying mechanism and the ULD, driving the support plate to move and the ULD to detach, and the forklift can drive the ULD to move; The input mode consists of the following steps: B1. Use a forklift to drive the ULD to the top of the conveying mechanism, insert the support plate under the ULD, and after the split detection part detects that the support plate has completed supporting the ULD, the support plate stops moving, and the forklift leaves the gap between the conveying mechanism and the ULD; B2. After the lifting mechanism rises and contacts the bottom of the ULD, it drives the support plate to move and separate from the ULD; B3. Drive the ULD down through the lifting mechanism so that the ULD contacts the conveying mechanism.

Images