CN219257675U

CN219257675U - Unmanned aerial vehicle cargo hold system of receiving and releasing

Info

Publication number: CN219257675U
Application number: CN202223536346.2U
Authority: CN
Inventors: 张峣
Original assignee: Lidong Geometry Chengdu Technology Co ltd
Current assignee: Lidong Geometry Chengdu Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-27
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses an unmanned aerial vehicle cargo hold retraction system, which comprises a mounting plate, wherein a mounting ring is fixedly connected to the mounting plate, the mounting ring is of a circular ring structure, a plurality of winches are uniformly arranged on the mounting ring at intervals, the winches are rotationally connected with the mounting ring, the winches are used for winding a retraction cable, and the winches are connected with an unmanned aerial vehicle through the retraction cable; the middle part of one side of each winch is fixedly connected with a worm wheel, each winch is provided with a driving device in a matched mode, the output shaft of each driving device is fixedly connected with a worm matched with the worm wheel, the worm is meshed with the worm wheel, and the driving devices are used for driving the worm to rotate; a plurality of pulleys aligned with the worm wheel are arranged around the mounting plate, and the pulleys are used for changing the direction of the winding and unwinding ropes. By this design, the goods can be stably fished or put down.

Description

Unmanned aerial vehicle cargo hold system of receiving and releasing

Technical Field

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to an unmanned aerial vehicle cargo hold retraction system.

Background

Unmanned aerial vehicles ("UAVs") are unmanned aerial vehicles that are operated using radio remote control equipment and self-contained programmed control devices. Unmanned aerial vehicles are in fact a collective term for unmanned aerial vehicles, which from a technical point of view can be defined as: unmanned fixed wing aircraft, unmanned vertical takeoff and landing aircraft, unmanned airship, unmanned helicopter, unmanned multi-rotor aircraft, unmanned parachute wing aircraft, and the like. Compared with manned plane, it has the advantages of small size, low cost, convenient use, etc. The existing unmanned aerial vehicle has no controllability on the attitude of the goods in the descending process for the goods with large size and high quality, and can influence hovering of the unmanned aerial vehicle; the stress point is single, and the structural strength requirement on the unmanned aerial vehicle hanging point is high, and the unmanned aerial vehicle hanging point has no redundancy and the like.

To transport cargo from the air to the ground, google unmanned aerial vehicle uses a method of "one wire to hang the package, and then to retract the lifting rope after placing it on the ground", the structure contains several key components. First is a winch, which is made of a high strength winch. Secondly, an egg, which is also a device that lands together with the package, can be detached from the package after the package has landed, allowing the unmanned aerial vehicle to retrieve the lifting rope. The egg and the egg tray below the unmanned aerial vehicle have orientation functions, so that automatic alignment of packages in the flight process of the unmanned aerial vehicle is guaranteed, and the axial and longitudinal resistance of the unmanned aerial vehicle is enabled to be minimum.

The utility model discloses an unmanned vehicles system and cargo hold thereof in the patent of application number CN201620391067.7, this unmanned vehicles system includes unmanned vehicles and carries on the cargo hold on this unmanned vehicles, the cargo hold includes the framework, first barrier, second barrier and a plurality of door body, the framework is the open cavity structure in one end, the framework is separated into at least two mutually independent one-level cabins by first barrier, one-level cabin is separated into at least two mutually independent second-level cabins by the second barrier, first barrier and second barrier mutually perpendicular set up, each second-level cabin is sealed by a plurality of door bodies respectively. The frame body of the cargo hold is divided into a plurality of independent secondary compartments through the first partition and the second partition, and the cargo hold is carried on the unmanned aerial vehicle, so that a plurality of packages can be distributed in the process that the unmanned aerial vehicle executes one flight task. The unmanned aerial vehicle cargo hold adopting the structure cannot effectively ensure balance in the process of transporting cargoes.

Disclosure of Invention

The utility model aims to provide a cargo hold retraction system of an unmanned aerial vehicle, which aims to solve the problem that the unmanned aerial vehicle provided in the background art has no controllability on the attitude of cargoes in the descending process and can influence hovering of the unmanned aerial vehicle for cargoes with large size and high quality.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the unmanned aerial vehicle cargo hold winding and unwinding system comprises a mounting plate, wherein a mounting ring is fixedly connected to the mounting plate, the mounting ring is of a circular ring structure, a plurality of winches are uniformly arranged on the mounting ring at intervals, the winches are rotationally connected with the mounting ring, and the winches are used for winding and unwinding ropes and are connected with an unmanned aerial vehicle through the winding and unwinding ropes;

the middle part of one side of each winch is fixedly connected with a worm wheel, each winch is provided with a driving device in a matched mode, the output shaft of each driving device is fixedly connected with a worm matched with the worm wheel, the worm is meshed with the worm wheel, and the driving devices are used for driving the worm to rotate; a plurality of pulleys aligned with the worm wheel are arranged around the mounting plate, and the pulleys are used for changing the direction of the winding and unwinding ropes.

Further, the number of the winches is four, and the number of driving devices matched with the winches is four.

Further, a wire-releasing groove is formed in the winch, and the section of the wire-releasing groove is of a v-shaped structure.

Further, the driving device adopts a stepping motor.

Further, nylon wires are used for the winding and unwinding ropes.

Further, the mounting ring is detachably connected with the mounting plate.

Further, the middle part of capstan winch is provided with a plurality of lightening holes.

Compared with the prior art, the utility model has the following beneficial effects:

a plurality of pulleys aligned with the worm wheel are arranged around the mounting plate, and the pulleys are used for changing the direction of the winding and unwinding ropes. Preventing the winding and unwinding ropes from contacting the goods.

The plurality of winches and the driving device which is independently matched with the winches can be used for conveniently controlling the winding and unwinding of the winding and unwinding ropes, so that the stability of the mounting plate is ensured. Meanwhile, the horizontal level can be kept all the time, the swing at a certain angle is restrained, and the mechanism failure of one line can be allowed, namely, the mechanism has certain redundancy.

The speed reduction can be realized by adopting a worm wheel and worm transmission mode, and the control is convenient, so that the stable ascending or descending of the mounting plate is ensured. And the worm gear transmission mode has self-locking capability, so that the cargo compartment retraction system is prevented from falling off after the driving device fails.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic diagram of the internal structure of the present utility model.

The marks in the figure: 1-mounting plate, 2-connecting rib, 3-capstan, 4-worm wheel, 5-pulley, 6-worm, 7-drive arrangement, 8-collar, 9-receive and release cable.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The unmanned aerial vehicle cargo hold winding and unwinding system comprises a mounting plate 1, wherein a mounting ring 8 is fixedly connected to the mounting plate 1, the mounting ring 8 is of a circular ring structure, a plurality of winches 3 are uniformly arranged on the mounting ring 8 at intervals, the winches 3 are rotationally connected with the mounting ring 8, the winches 3 are used for winding a winding and unwinding rope 9, and the winches 3 are connected with an unmanned aerial vehicle through the winding and unwinding rope 9;

specifically, in actual use, the mounting ring 8 is provided with a placement device used according to different cargoes, and the placement device is used for placing cargoes, for example, only a frame with a fence is needed for cargoes in a box body, and a partition is needed to be added in the frame for the cargoes of a sphere to prevent the cargoes of the sphere from shaking and colliding. The middle part of one side of each winch 3 is fixedly connected with a worm wheel 4, each winch 3 is provided with a driving device 7 in a matched mode, the output shaft of each driving device 7 is fixedly connected with a worm 6 matched with the worm wheel 4, the worm 6 is meshed with the worm wheel 4, and the driving devices 7 are used for driving the worm 6 to rotate; a plurality of pulleys 5 aligned with the worm wheel 4 are arranged around the mounting plate 1, and the pulleys 5 are used for changing the direction of the winding and unwinding ropes 9 and preventing the winding and unwinding ropes 9 from contacting with cargoes. In this embodiment, the winches 3 are provided with at least four winches 3 and the driving device 7 which is provided independently and cooperatively can facilitate the control of the winding and unwinding cable 9, thereby ensuring the stability of the mounting board 1. Meanwhile, the horizontal level can be kept all the time, the swing at a certain angle is restrained, and the mechanism failure of one line can be allowed, namely, the mechanism has certain redundancy. For example, after four winches 3 are provided, that is, four winches 3 are connected to the unmanned aerial vehicle through one connecting cable, respectively, when one winch 3 and the driving device 7 matched with the same are damaged, the other three winches 3 can pull up the mounting plate 1. The speed reduction can be realized by adopting the transmission mode of the worm wheel 4 and the worm 6, and the control is convenient, thereby ensuring the stable ascending or descending of the mounting plate 1. And the transmission mode of the worm gear 4 and the worm 6 has self-locking capability, so that the cargo compartment retraction system is prevented from falling off after the driving device 7 fails.

In a preferred embodiment, the number of winches 3 is in particular four, and the number of driving means 7 associated with the winches 3 is in particular four. The provision of four winches 3 facilitates layout, i.e. the four winches 3 are provided at positions near the four corners of the mounting plate 1, respectively. Through the design, the stability of the mounting plate 1 can be effectively ensured, and the mounting plate 1 is prevented from large shaking or twisting in the descending or ascending process, so that the goods can be stably folded and unfolded. The design of the four winches 3 also makes the whole cargo compartment retraction system somewhat redundant, i.e. after one winch 3 and the associated drive 7 have been damaged, the other three winches 3 can also stably pull up the mounting plate 1 via the connecting cable.

In a preferred embodiment, the winch 3 is provided with a wire-releasing groove, the cross section of which is v-shaped. Specifically, the winch 3 is a large-diameter winch 3, and the winch 3 adopting the structure that the section of the wire releasing groove is v-shaped can ensure that the winding and unwinding rope 9 wound on the winch 3 firstly enters the bottommost layer and then is wound up layer by layer, so that the winding and unwinding rope 9 can be effectively prevented from winding in the winding process.

In a preferred embodiment, the drive means 7 are stepper motors. A stepper motor is a motor that converts an electrical pulse signal into a corresponding angular or linear displacement. Each time a pulse signal is input, the rotor rotates by an angle or further, the output angular displacement or linear displacement is proportional to the input pulse number, and the rotating speed is proportional to the pulse frequency. The number of turns or the rotation angle of the motor can be conveniently controlled by arranging the stepping motor.

In a preferred embodiment, the winding and unwinding rope 9 is made of nylon wire, the nylon wire has high tensile strength, and the nylon wire has enough flexibility, so that the winding and unwinding rope 9 is conveniently wound on the winch 3.

In a preferred embodiment, the mounting ring 8 is detachably connected with the mounting plate 1, specifically, the mounting ring 8 has a double-layer structure, the two layers of mounting rings 8 are connected together through the middle connecting rib 2, and the winch 3 is rotatably connected in the middle of the mounting ring 8. The collar 8 that is close to mounting panel 1 passes through bolted connection with mounting panel 1 and realizes dismantling the connection, and more specifically, joint bar 2 both ends all are provided with the connector, all are provided with on two collars 8 with connector complex mounting groove, the inslot of connector joint, rethread bolt is locked the connector in the mounting groove, can conveniently separate two collars 8 through this kind of design to pull down capstan winch 3, can conveniently receive and release rope 9 winding and handle fast after on capstan winch 3.

In a preferred embodiment, the winch 3 is provided with several lightening holes in the middle. The design of lightening hole can reduce the weight of capstan winch 3 to reduce the holistic weight of receive and release system, conveniently install more goods.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle cargo hold receive and releases system, its characterized in that: the unmanned aerial vehicle comprises a mounting plate (1), wherein a mounting ring (8) is fixedly connected to the mounting plate (1), the mounting ring (8) is of a circular ring structure, a plurality of winches (3) are uniformly arranged on the mounting ring (8) at intervals, the winches (3) are rotationally connected with the mounting ring (8), the winches (3) are used for winding a winding and unwinding rope (9), and the winches (3) are connected with the unmanned aerial vehicle through the winding and unwinding rope (9);

the middle part of one side of each winch (3) is fixedly connected with a worm wheel (4), each winch (3) is provided with a driving device (7) in a matched mode, a worm (6) matched with the worm wheel (4) is fixedly connected to an output shaft of each driving device (7), the worm (6) is meshed with the worm wheel (4), and the driving devices (7) are used for driving the worm (6) to rotate; a plurality of pulleys (5) aligned with the worm wheel (4) are arranged around the mounting plate (1), and the pulleys (5) are used for changing the direction of the winding and unwinding ropes (9).

2. The unmanned aerial vehicle cargo hold retraction system of claim 1, wherein: the number of the winches (3) is four, and the number of driving devices (7) matched with the winches (3) is four.

3. The unmanned aerial vehicle cargo hold retraction system of claim 1, wherein: the winch (3) is provided with a wire-releasing groove, and the section of the wire-releasing groove is of a v-shaped structure.

4. The unmanned aerial vehicle cargo hold retraction system of claim 1, wherein: the driving device (7) adopts a stepping motor.

5. The unmanned aerial vehicle cargo hold retraction system of claim 1, wherein: the winding and unwinding rope (9) adopts nylon wires.

6. The unmanned aerial vehicle cargo hold retraction system of claim 1, wherein: the mounting ring (8) is detachably connected with the mounting plate (1).

7. The unmanned aerial vehicle cargo hold retraction system of claim 1, wherein: the middle part of the winch (3) is provided with a plurality of lightening holes.