An automatic delivery platform installed on a floor frame

Abstract

The present invention relates to an automatic delivery platform installed on a floor frame, comprising a supporting platform, a delivery mechanism, a clamping mechanism, a delivery box and a control device; the control device is respectively connected with the delivery mechanism and the clamping mechanism by signal; the clamping mechanism comprises a clamping guide rail, a first gear, a driving device and a clamping frame; the clamping frame is provided with a guide rail groove, and the driving device comprises a second gear, a transmission rod, a third gear, a fourth gear, a reducer and a clamping motor; a delivery port and a delivery guide rail are provided on the supporting platform; the delivery mechanism comprises a first delivery platform and a second delivery platform, a first delivery platform driving device and a second delivery platform driving device; the first delivery platform comprises a guide wheel, a platform ball and a roller; the beneficial effect of the present invention is that the delivery box is transported to the delivery port by the provided clamping mechanism and delivered by the delivery mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of cargo aerial delivery, in particular to an automatic delivery platform installed on a floor frame. Background Art

[0002] With the application of aircraft in the field of civil transportation, such as the use of logistics aircraft, some aircraft need to perform aerial delivery operations in specific logistics scenarios. In one case, the logistics package needs to be delivered as a whole, and in another case, several logistics packages need to be delivered one by one in batches and in stages. At present, there is no mature mechanism for delivering large-volume goods in batches on the market. If the existing delivery mechanism is installed on a transport aircraft, due to the complexity of such delivery mechanism and the overall weight being too large, it will increase the load of the transport aircraft and affect the load capacity of the transport aircraft. Therefore, it is very necessary to design a lightweight structure for delivering large-volume logistics packages in batches and in stages.

[0003] Among the existing patents, there is a patent with announcement number CN201810734111.3, named a vertical wind tunnel model free flight test release device. The patent discloses that the top of a rotating bracket main shaft that can be folded vertically upward is installed on a support frame at the upper part of the wind tunnel, and the lower part of the rotating bracket main shaft passes through the middle part of the bracket composed of a front support arm and a rear support arm. The rotating bracket main shaft is a hollow structure, and a pulley is installed on the support frame above the rotating bracket main shaft. The hanging rope passing through the pulley passes through the rotating bracket main shaft and is connected to the upper hanging for hanging the aircraft model; the rotating drive motor drives the rotating bracket main shaft to rotate, the front support arm is connected to the front support cylinder, the rear support arm is connected to the rear support cylinder, the front support cylinder is connected to the front extension shaft, and the rear support cylinder is connected to the rear extension shaft. A front contact is provided in the front extension shaft, and a rear contact is provided in the rear extension shaft. A connection point for connecting with the front contact and the rear contact is provided on the aircraft model, and magnetic force is used to control the automatic release of the aircraft model. This patent adopts magnetic force to absorb goods, and metal packaging must be used, which has a small scope of application. At the same time, metal is heavy, which limits the load of the aircraft, and has defects;

[0004] There is also a patent application number CN201911384491.3, entitled A monitoring device and method for external hanging delivery of cargo from an unmanned helicopter, which discloses that the device includes a hanging monitoring device arranged in the aircraft, a cargo hanging device installed on the external hanging cover frame of the aircraft, and an auxiliary hanging device connected to the bottom of the cargo hanging device; the cargo hanging device is equipped with a weighing sensor, a cargo hanging device proximity sensor, a normal delivery driver of the cargo hanging device and an emergency delivery device respectively connected to the hanging monitoring device; the auxiliary hanging device is equipped with an auxiliary hanging device proximity sensor and a normal delivery driver of the auxiliary hanging device respectively connected to the hanging monitoring device; the patent has the problem that the wind resistance of the external cargo is large, which in turn affects the load and speed of the aircraft; the solution is not perfect.

[0005] Both of the above patents have their imperfections, and it is urgent to design a lightweight delivery device to deliver the goods. - Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a lightweight delivery device with the functions of rapid clamping and rapid delivery.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] An automatic delivery platform installed on a floor frame is used for automatic delivery of a delivery box; it includes a support platform arranged on the floor frame, a delivery mechanism arranged on the support platform, a clamping mechanism arranged on the support platform, a delivery box arranged on the support platform, and a control device; the control device is respectively connected to the delivery mechanism and the clamping mechanism by signal.

[0009] Furthermore, the clamping mechanism includes a clamping rail with a rack provided on the supporting platform, a first gear meshing with the rack, a driving device for driving the first gear to rotate, and a clamping frame rotatably connected to the first gear; the clamping frame is provided with a guide rail groove, and the guide rail groove is slidably connected to the clamping rail.

[0010] Furthermore, the driving device includes a second gear meshed with the first gear, a transmission rod whose end is fixedly connected to the second gear, a third gear fixedly connected to the middle of the transmission rod, a fourth gear meshed with the third gear, a reducer transmission-connected to the fourth gear, and a clamping motor transmission-connected to the reducer; the housing of the clamping motor is fixedly connected to the reducer housing; the reducer housing is fixedly connected to the clamping frame; and the transmission rod is rotationally connected to the clamping frame.

[0011] Furthermore, the number of the clamping mechanisms is at least two; and the delivery box is arranged between adjacent clamping mechanisms.

[0012] Furthermore, the support platform is provided with a delivery port and a delivery guide rail; the delivery guide rails are two in number, which are respectively arranged on both sides of the bottom surface of the support platform;

[0013] The delivery mechanism comprises a first delivery platform and a second delivery platform, a first delivery platform driving device and a second delivery platform driving device which are slidably connected to the delivery guide rail;

[0014] The first delivery platform comprises a guide wheel rotatably connected to the first delivery platform, a delivery ball disposed on the top surface of the delivery platform, and a delivery roller disposed at the end of the delivery platform near the delivery port;

[0015] The delivery ball is in rolling connection with the bottom surface of the delivery box;

[0016] There are four guide wheels, which are respectively arranged on both sides of the first delivery platform; and the guide wheels are rollingly connected to the delivery guide rails.

[0017] Furthermore, the first delivery platform driving device includes a delivery motor fixedly connected to the bottom surface of the support platform, a gear group transmission connected to the delivery motor, a delivery threaded rod transmission connected to the gear group, and a nut threadedly connected to the delivery threaded rod; the nut is fixedly connected to the first delivery platform.

[0018] Furthermore, the second delivery platform has the same structure as the first delivery platform and is respectively arranged at two ends of the delivery port; the first delivery platform driving device has the same structure as the second delivery platform driving device.

[0019] Furthermore, the control device includes a controller; the controller is respectively connected to the delivery motor and the clamping motor signals.

[0020] Furthermore, the delivery box includes a cargo box, a cargo tray and a parachute for storing goods; the cargo tray is fixedly connected to the bottom surface of the cargo box; the parachute that can be automatically opened is arranged on the top of the cargo box;

[0021] A delivery box guide rail is provided on each side of the top surface of the support platform; and both sides of the cargo tray are slidably connected to the delivery box guide rails respectively;

[0022] A platform ball is provided on the top surface of the support platform; the platform ball is in rolling connection with the bottom surface of the cargo tray;

[0023] When delivering goods, the first delivery platform and the second delivery platform move to the two ends of the delivery port respectively, and the delivery ball is connected to the cargo tray in a rolling manner; the delivery roller is connected to the cargo tray in a rolling manner.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The clamping mechanism can quickly clamp the delivery box. When delivery is required, the clamping motor of the clamping mechanism drives the first gear to move along the clamping guide rail to transport the delivery box to the delivery port for delivery;

[0026] 2. Through the set delivery mechanism, when the goods need to be delivered, the delivery motor of the delivery mechanism rotates, thereby driving the delivery threaded rod to rotate, and the nut moves along the delivery threaded rod under the action of the thread force, driving the first delivery platform and the second delivery platform to move to both sides of the delivery port; the delivery port is exposed, and the delivery box is delivered;

[0027] 3. The delivery ball is set on the delivery platform to make the delivery box and the delivery platform roll in contact, reducing friction resistance;

[0028] 4. Through the platform ball set on the support platform; when the delivery box needs to move on the support platform, the platform ball and the delivery box roll in contact, so that the sliding friction is converted into rolling friction, reducing the friction resistance;

[0029] 5. With the parachute set up, the goods will not fall freely when being dropped, which will damage the drop box and the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of the drop box;

[0032] Figure 3 It is a structural diagram of the support platform;

[0033] Figure 4 is a schematic diagram of the three-dimensional structure of the clamping mechanism;

[0034] Figure 5 is a cross-sectional view of the clamping mechanism;

[0035] Figure 6 It is a three-dimensional structural schematic diagram of the delivery mechanism;

[0036] Figure 7 It is a top view of the delivery mechanism;

[0037] Figure 8 This is a bottom view of the delivery mechanism;

[0038] Fig. 9 Loading direction charts for drop boxes;

[0039] Fig.10 It is a schematic diagram of a clamping mechanism clamping a delivery box;

[0040] Fig.11 A schematic diagram of the drop box;

[0041] Fig.12 A schematic diagram of the clamping mechanism pushing the delivery box;

[0042] Fig.13 Schematic diagram of the second drop box.

[0043] Description of the numbers in the figure:

[0044] 1-support platform, 2-delivery mechanism, 3-clamping mechanism, 4-delivery box, 10-delivery port, 11-delivery guide rail, 12-delivery box guide rail, 20-first delivery platform, 21-second delivery platform, 22-guide wheel, 23-delivery ball, 24-delivery roller, 30-clamping guide rail, 31-rack, 32-first gear, 33-second gear, 34-clamping frame, 35-transmission rod, 36-third gear, 37-fourth gear, 38-reducer, 39-clamping motor, 40-cargo box, 41-cargo tray, 42-parachute, 200-delivery motor, 201-gear set, 202-delivery threaded rod, 203-nut, 220-rear guide wheel, 340-guide rail groove. DETAILED DESCRIPTION

[0045] First, it should be noted that the discussion of any embodiment of the present invention is only exemplary and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; there are many other variations of the different aspects of the present invention described above, which are not provided in detail for the sake of brevity. Therefore, other embodiments are also within the scope of protection of the corresponding claims.

[0046] It should also be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. If not otherwise stated, the above words have no special meanings, especially there are no specific meanings of "primary" or "secondary" or arrangement order, and therefore cannot be understood as limiting the scope of protection of this application.

[0047] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0048] Example 1

[0049] like Figure 1-13 As shown:

[0050] An automatic delivery platform installed on a floor frame is used for automatic delivery of a delivery box 4; it includes a support platform 1 arranged on the floor frame, a delivery mechanism 2 arranged on the support platform 1, a clamping mechanism 3 arranged on the support platform 1, a delivery box 4 arranged on the support platform 1, and a control device; the control device is signal-connected to the delivery mechanism 2 and the clamping mechanism 3, respectively.

[0051] The clamping mechanism 3 includes a clamping rail 30 provided with a rack 31 on the support platform 1, a first gear 32 meshing with the rack 31, a driving device for driving the first gear 32 to rotate, and a clamping frame 34 rotatably connected to the first gear 32; the clamping frame 34 is provided with a guide rail groove 340, and the guide rail groove 340 is slidably connected to the clamping rail 30.

[0052] The driving device includes a second gear 33 meshing with the first gear 32, a transmission rod 35 whose end is fixedly connected to the second gear 33, a third gear 36 fixedly connected to the middle of the transmission rod 35, a fourth gear 37 meshing with the third gear 36, a reducer 38 transmission-connected to the fourth gear 37, and a clamping motor 39 transmission-connected to the reducer 38; the housing of the clamping motor 39 is fixedly connected to the housing of the reducer 38; the housing of the reducer 38 is fixedly connected to the clamping frame 34; the transmission rod 35 is rotationally connected to the clamping frame 34. The number of teeth and the diameter of the first gear 32 are much larger than the number of teeth and the diameter of the second gear 33; this is to ensure a smoother drive and avoid the driving device driving too fast, the inertia of the delivery box 4 being too large, causing instability and tipping; a more detailed technical solution is that the diameter of the first gear 32 is three times that of the second gear 33. After repeated tests, the delivery box 4 now runs very smoothly;

[0053] The number of the clamping mechanisms 3 is at least two; the delivery box 4 is arranged between adjacent clamping mechanisms 3 .

[0054] The support platform 1 is provided with a delivery port 10 and a delivery guide rail 11; the delivery guide rails 11 are two in number and are respectively provided on both sides of the bottom surface of the support platform 1;

[0055] The delivery mechanism 2 includes a first delivery platform 20 and a second delivery platform 21, a first delivery platform driving device and a second delivery platform driving device which are slidably connected to the delivery guide rail 11;

[0056] The first delivery platform 20 includes a guide wheel 22 rotatably connected to the first delivery platform 20, a delivery ball 23 provided on the top surface of the delivery platform 20, and a roller 24 provided at the end of the delivery platform 20 near the delivery port 10;

[0057] The delivery ball 23 is in rolling connection with the bottom surface of the delivery box 4;

[0058] There are four guide wheels 22 , which are respectively arranged on both sides of the first delivery platform 20 ; the guide wheels 22 are rollingly connected to the delivery guide rail 11 .

[0059] The first delivery platform driving device includes a delivery motor 200 fixedly connected to the bottom surface of the support platform 1, a gear set 201 transmission-connected to the delivery motor 200, a delivery threaded rod 202 transmission-connected to the gear set 201, and a nut 203 threadedly connected to the delivery threaded rod 202; the nut 203 is fixedly connected to the first delivery platform 20.

[0060] The second delivery platform 21 has the same structure as the first delivery platform 20 and is respectively arranged at two ends of the delivery port 10; the first delivery platform driving device has the same structure as the second delivery platform driving device.

[0061] The control device includes a controller; the controller is respectively connected to the delivery motor 200 and the clamping motor 39 by signals.

[0062] The delivery box 4 includes a cargo box 40 for storing goods, a cargo tray 41 and a parachute 42; the cargo tray 41 is fixedly connected to the bottom surface of the cargo box 40; the parachute 42 that can be opened automatically is arranged on the top of the cargo box 40;

[0063] A delivery box guide rail 12 is provided on each side of the top surface of the support platform 1; and both sides of the cargo tray 41 are respectively in contact with the delivery box guide rail 12;

[0064] A platform ball 13 is provided on the top surface of the support platform 1; the platform ball 13 is in rolling connection with the bottom surface of the cargo tray 41;

[0065] When delivering goods, the first delivery platform 20 and the second delivery platform 21 move to the two ends of the delivery port respectively, and the delivery ball 23 is connected to the cargo tray 41 in a rolling manner; the roller 24 is connected to the cargo tray 41 in a rolling manner. The purpose of setting the roller 24 is to ensure that the friction force to which the delivery box 4 is subjected is as consistent as possible when the delivery platform is folded to both ends (exposing the delivery port 10). If there is no roller 24, the delivery box 4 and the end of the delivery platform will be in surface contact. If the weight of the goods in the delivery box 4 is unbalanced, the friction force to which the delivery box 4 is subjected will be larger at one end and smaller at the other end. The end with larger friction force will have an adverse effect on the clamping mechanism 3. In addition, in order to ensure smooth delivery of the delivery box 4, there will be a certain gap between the clamping mechanism 3 on both sides of the delivery box 4 and the delivery box 4. If the friction force is inconsistent, the delivery box 4 will be skewed during the delivery process, which will have an adverse effect on the delivery process.

[0066] The working process of the present invention;

[0067] The device is installed on the bottom frame of the aircraft cargo hold, the goods are loaded into the delivery box 4, and the delivery box 4 is sealed, and the delivery box 4 is placed on the support platform 1, and the delivery box 4 is close to the delivery box guide rail 12 on the left and right, and can slide with the delivery box guide rail 12 to prevent the delivery box 4 from moving left and right; each delivery box 4 is provided with a clamping mechanism 3 at the front and back, and the reducer 38 of the clamping mechanism 3 has a self-locking function, and the delivery box 4 is fixed between the clamping mechanisms 3; Figure 1 As shown, three delivery boxes 4 are fixed by four clamping mechanisms 3 to prevent movement;

[0068] When it is necessary to deliver the goods, the clamping motor 39 of the clamping mechanism 3 rotates, the reducer 38 rotates, the fourth gear 37 rotates, the fourth gear 37 meshes with the third gear 36, the third gear 36 drives the transmission rod 35 to rotate, the transmission rod 35 drives the second gears 33 at both ends to rotate, the second gear 33 meshes with the first gear 32, the first gear 32 meshes with the rack 31, under the reaction force of the meshing force, the first gear 32 drives the clamping frame 34 to slide along the clamping guide rail 30 of the support platform 1, and pushes the delivery box 4 to the delivery port 10;

[0069] Start the delivery motor 200, the delivery motor 200 drives the gear set 201 to rotate, the gear set 201 drives the delivery threaded rod 202 to rotate, the nut 203 moves in the opposite direction of the delivery port 10 driven by the thread force, the nut 203 drives the first delivery platform 20 to move away from the delivery port 10, another delivery motor 200, another gear set 201, another delivery threaded rod 202 and another nut 203 drive the second delivery platform 21 to move away from the first delivery platform 20, so that the delivery port 10 is fully opened, and the delivery box 4 will be delivered through the delivery port 10;

[0070] After the delivery box 4 is delivered, the parachute 42 automatically opens and slowly descends to avoid damage to the goods.

[0071] Example 2

[0072] The structure of this embodiment is basically the same as that of embodiment 1.

[0073] The difference is;

[0074] like Figure 6 As shown, the guide wheel 22 includes a front guide wheel and a rear guide wheel 220; the diameter of the front guide wheel is smaller than the diameter of the rear guide wheel 220, and the guide wheel close to the delivery port 10 is the front guide wheel; such a structure is designed to make the delivery box 4 inclined when delivering goods, making it easier to push the delivery box 4 for delivery.

[0075] The working principle of this embodiment is basically the same as that of Embodiment 1, and will not be described in detail.

[0076] Example 3

[0077] The structure of this embodiment is basically the same as that of embodiment 1.

[0078] The difference is that a circular guide bar is provided in the clamping guide rail 30, the guide groove 340 is arc-shaped, and the guide groove 340 is slidably connected to the guide bar; such a setting enables the clamping frame 34 to slide stably on the support platform 1, and the clamping frame 34 and the support platform 1 will not deviate from each other.

[0079] The working principle of this embodiment is basically the same as that of Embodiment 1, and will not be described in detail.

[0080] Example 4

[0081] The structure of this embodiment is basically the same as that of embodiment 1.

[0082] The difference is that the gear set 201 is a speed reduction mechanism. As is known to all, the general rotation speed of an ordinary four-pole motor is 1450 rpm, and this speed directly rotates; the rotation speed of the delivery threaded rod 202 in the nut 203 is also 1450 rpm; the linear movement speed of the nut 203 will be very fast, and the speed of the first delivery platform 20 and the second delivery 21 will also be very fast, resulting in inaccurate delivery of goods.

[0083] The working principle of this embodiment is basically the same as that of Embodiment 1, and will not be described in detail.

[0084] At present, the technical solution of the present application has adopted the best implementation mode of Example 1, and has been piloted, that is, a small-scale experiment of the product before large-scale mass production, installed on the Yun-5B aircraft, and ran well; after the pilot was completed, a user usage survey was carried out in a small range, and the survey results showed that user satisfaction was high; now preparations have been made for the formal production and industrialization of the product; the above; is only a preferred specific implementation mode of the present invention; but the protection scope of the present invention is not limited to this; any technician familiar with the technical field within the technical scope disclosed by the present invention; according to the technical solution and its improved conception of the present invention, it is equivalent to or changed; all should be covered within the protection scope of the present invention.

[0085] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. An automatic delivery platform mounted on a floor frame, used for automatic delivery of delivery boxes (4); characterized in that: It comprises a support platform (1) arranged on a floor frame, a delivery mechanism (2) arranged on the support platform (1), a clamping mechanism (3) arranged on the support platform (1), a delivery box (4) arranged on the support platform (1), and a control device; the control device is respectively connected to the delivery mechanism (2) and the clamping mechanism (3) by signals; The clamping mechanism (3) comprises a clamping guide rail (30) provided with a rack (31) on the support platform (1), a first gear (32) meshing with the rack (31), a driving device for driving the first gear (32) to rotate, and a clamping frame (34) rotatably connected to the first gear (32); a guide rail groove (340) is provided on the clamping frame (34), and the guide rail groove (340) is slidably connected to the clamping guide rail (30); The driving device comprises a second gear (33) meshing with the first gear (32), a transmission rod (35) whose end is fixedly connected to the second gear (33), a third gear (36) fixedly connected to the middle of the transmission rod (35), a fourth gear (37) meshing with the third gear (36), a reducer (38) transmission-connected to the fourth gear (37), and a clamping motor (39) transmission-connected to the reducer (38); a housing of the clamping motor (39) is fixedly connected to a housing of the reducer (38); the housing of the reducer (38) is fixedly connected to the clamping frame (34); the transmission rod (35) is rotationally connected to the clamping frame (34); The number of the clamping mechanisms (3) is at least two; the delivery box (4) is arranged between adjacent clamping mechanisms (3); The support platform (1) is provided with a delivery port and a delivery guide rail (11); the delivery guide rails (11) are two in number and are respectively arranged on two sides of the bottom surface of the support platform (1); The delivery mechanism (2) comprises a first delivery platform (20) and a second delivery platform (21) slidably connected to the delivery guide rail (11), a first delivery platform driving device and a second delivery platform driving device; The first delivery platform (20) comprises a guide wheel (22) rotatably connected to the first delivery platform (20), a delivery ball (23) arranged on the top surface of the delivery platform (20), and a delivery roller (24) arranged at the end of the delivery platform (20) close to the delivery port; The delivery ball (23) is rollingly connected to the bottom surface of the delivery box (4); There are four guide wheels (22), which are respectively arranged on both sides of the first delivery platform (20); and the guide wheels (22) are rollingly connected to the delivery guide rail (11).

2. The automatic delivery platform installed on the floor frame according to claim 1, characterized in that: The first delivery platform driving device comprises a delivery motor (200) fixedly connected to the bottom surface of the support platform (1), a gear set (201) drivingly connected to the delivery motor (200), a delivery threaded rod (202) drivingly connected to the gear set (201), and a nut (203) threadedly connected to the delivery threaded rod (202); the nut (203) is fixedly connected to the first delivery platform (20).

3. The automatic delivery platform installed on the floor frame according to claim 2, characterized in that: The second delivery platform (21) has the same structure as the first delivery platform (20), and is respectively arranged at both ends of the delivery port; the first delivery platform driving device has the same structure as the second delivery platform driving device.

4. The automatic delivery platform installed on the floor frame according to claim 3, characterized in that: The control device comprises a controller; the controller is respectively connected to the delivery motor (200) and the clamping motor (39) by signals.

5. The automatic delivery platform installed on the floor frame according to claim 4, characterized in that: The delivery box (4) comprises a cargo box (40) for storing cargo, a cargo tray (41) and a parachute (42); the cargo tray (41) is fixedly connected to the bottom surface of the cargo box (40); the parachute (42) which can be opened automatically is arranged on the top of the cargo box (40); A delivery box guide rail (12) is provided on each side of the top surface of the support platform (1); and both sides of the cargo tray (41) are slidably connected to the delivery box guide rail (12) respectively; A platform ball (13) is provided on the top surface of the support platform (1); the platform ball (13) is rollingly connected to the bottom surface of the cargo tray (41); When the goods are dropped in, the first drop-in platform (20) and the second drop-in platform (21) move towards the two ends of the drop-in port respectively, the drop-in ball (23) is roll-connected to the cargo tray (41), and the drop-in roller (24) is roll-connected to the cargo tray (41).

Images