CN218086055U

CN218086055U - Honeycomb rotation type unmanned aerial vehicle collision device

Info

Publication number: CN218086055U
Application number: CN202222852084.4U
Authority: CN
Inventors: 宋冰雪; 张昕琰; 亢永
Original assignee: Beijing Institute of Petrochemical Technology
Current assignee: Beijing Institute of Petrochemical Technology
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2022-12-20
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a honeycomb rotary type unmanned aerial vehicle anti-collision device, which comprises a protective frame, eight rotary barrel structures arranged on the side surface of the protective frame, and a connecting piece arranged in the protective frame; the protective frame consists of a protective ring, a fixed rod and a connecting rod, the protective ring, the fixed rod and the connecting rod are uniformly distributed on the upper side and the lower side, one side of the fixed rod is connected with the protective ring in a welding manner, and the other side of the fixed rod is connected with the connecting rod in a sleeving manner through a tapered roller bearing; the rotary barrel structure consists of a supporting upright post, a rotary ring, a rotary barrel shell and a honeycomb inner core, wherein the rotary barrel shell is tightly sleeved with the honeycomb inner core inside, is supported by the rotary ring and stands in the middle of the protective frames at the upper side and the lower side, and the protective rings at the two sides are connected with the supporting upright post through bolts; the connecting piece is connected with the connecting rod through welding; the utility model discloses configuration optimization, multiple buffering and decomposition impact structure of falling have, can effectively change the atress direction when bumping, decompose the impact, protection unmanned aerial vehicle safety also has the ability that prevents the skew of unmanned aerial vehicle orbit simultaneously.

Description

Honeycomb rotation type unmanned aerial vehicle collision device

Technical Field

The utility model relates to an unmanned air vehicle technique field, concretely relates to unmanned aerial vehicle collision device especially relates to a honeycomb rotation type unmanned aerial vehicle collision device.

Background

With the rapid development of the unmanned aerial vehicle technology and the improvement of related technologies such as artificial intelligence, machine vision, measurement and control sensing, the application of the unmanned aerial vehicle is gradually expanded from military use to civil use, and the unmanned aerial vehicle is rapidly developed in the fields of infrastructure inspection, logistics material distribution, disaster rescue and the like; in the field of emergency rescue, an unmanned aerial vehicle is mostly used for carrying detection equipment to obtain disaster situation information of a disaster accident site so as to improve the emergency detection efficiency and safety; considering that the unmanned aerial vehicle collides with an obstacle in the flying process, the body is damaged if the unmanned aerial vehicle is light, and the rescue process is influenced if the unmanned aerial vehicle is heavy; therefore, the unmanned aerial vehicle obstacle avoidance and anti-collision related research has strong application value and practical significance.

The early anti-collision strategy focuses on sensing the surrounding environment by carrying the sensor equipment through the unmanned aerial vehicle, and avoids obstacles by using path planning, so that the anti-collision strategy is more suitable for static obstacles, considers that moving obstacles such as flying stones exist in the real environment, senses the surrounding environment and the moving obstacles by carrying the sensor equipment through the unmanned aerial vehicle, and adjusts the flight track of the unmanned aerial vehicle by applying autonomous control algorithms such as a collision avoidance mechanism based on vision and a local dynamic obstacle avoidance algorithm so as to achieve the purpose of avoiding the obstacles. However, the above algorithm has strict preconditions which are difficult to strictly satisfy in a real complex environment, or difficult to implement in hardware, and may have a misjudgment or a situation that an obstacle cannot be avoided; for solving above-mentioned problem, follow physical structure and set out, develop unmanned aerial vehicle anticollision external device to reduce the impact force that unmanned aerial vehicle and barrier produced when bumping, promote unmanned aerial vehicle safety in utilization performance.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a reliability is higher, anticollision, and has a honeycomb rotation type unmanned aerial vehicle collision device who prevents the orbit skew ability, after this device of unmanned aerial vehicle installation, when bumping with the barrier, can change the direction of striking force effectively through honeycomb rotation type structure, slows down the impact that the collision produced.

The technical scheme of the utility model is that: a honeycomb rotary type anti-collision device for an unmanned aerial vehicle comprises a protective frame, eight rotary barrel structures arranged on the side face of the protective frame, and connecting pieces arranged inside the protective frame; the protective frame consists of a protective ring, a fixed rod and a connecting rod, the protective ring, the fixed rod and the connecting rod are uniformly distributed on the upper side and the lower side, one side of the fixed rod is welded with the protective ring, and the other side of the fixed rod is connected with the connecting rod in a sleeved mode through a tapered roller bearing; the rotary barrel structure consists of a supporting upright post, a rotary ring, a rotary barrel shell and a honeycomb inner core, wherein the rotary barrel shell is tightly sleeved with the honeycomb inner core inside, is supported by the rotary ring and stands in the middle of the upper and lower side protective frames, and the two side protective rings are connected with the supporting upright post through bolts; the connecting piece is connected with the connecting rod through welding.

Furthermore, the number of the fixing rods distributed on the upper side and the lower side is 8 respectively.

Furthermore, one side of the fixing rod is connected with the protective ring in a welding mode, and the other side of the fixing rod is connected with the connecting rod in a sleeved mode through the tapered roller bearing.

Further, the connecting piece is a regular pentagon.

Furthermore, the supporting upright posts, the rotating ring, the honeycomb inner core and the rotating barrel shell form a honeycomb rotating structure and are vertically distributed around the device.

Further, the number of the rotating barrel structures is 8.

Furthermore, the honeycomb inner core is composed of 2 layers of nonstandard hexagonal interlayers, and the hexagon is designed to be symmetrical and has wider side length with the outward axis.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a honeycomb rotation type unmanned aerial vehicle collision device installs simply, configuration optimization, multiple buffering and decomposition impact structure of falling have, when bumping, the rotating barrel structure can change the direction of impact force, decompose the size of impact force, 2 layers of nonstandard hexagon intermediate layers of honeycomb inner core can be through increasing the deformation when bumping and slow down the atress, rotating ring structure decomposes impact force again, protection unmanned aerial vehicle's purpose has been reached, the ability that prevents the skew of unmanned aerial vehicle orbit also has simultaneously.

Drawings

Fig. 1 is an overall structure diagram of a honeycomb rotary unmanned aerial vehicle collision device.

Fig. 2 is a top view of a cellular rotary unmanned aerial vehicle collision device.

Fig. 3 is a cross-sectional view of a rotating barrel structure of a honeycomb rotary unmanned aerial vehicle collision prevention device.

Fig. 4 is a structural diagram of a honeycomb inner core structure of a honeycomb rotary unmanned aerial vehicle collision prevention device.

Fig. 5 is a structural stress analysis diagram of a honeycomb inner core of a honeycomb rotary unmanned aerial vehicle collision prevention device.

Fig. 6 is a schematic diagram of a quad-rotor drone implemented according to a cellular rotary drone collision device installing the device.

In the figure: 1-protective ring, 2-fixed rod, 3-connecting rod, 4-rotary barrel structure, 5-supporting upright post, 6-rotary ring, 7-rotary barrel shell, 8-tapered roller bearing, 9-connecting piece and 10-honeycomb inner core.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

For solving unmanned aerial vehicle and bumping then damage the fuselage, change flight path, influence detection process scheduling problem with the barrier at the flight in-process, this embodiment provides a honeycomb rotation type unmanned aerial vehicle collision device.

As shown in fig. 1 and fig. 2, the collision-proof device for the honeycomb rotary unmanned aerial vehicle structurally comprises a protective frame, eight rotary barrel structures 4 arranged on the side surfaces of the protective frame, and a connecting piece 9 arranged inside the protective frame; the protection frame consists of a protection ring 1, a fixed rod 2 and a connecting rod 3, the protection ring 1, the fixed rod 2 and the connecting rod 3 are uniformly distributed on the upper side and the lower side, one side of the fixed rod 2 is connected with the protection ring 1 in a welding mode, and the other side of the fixed rod is connected with the connecting rod 3 in a sleeving mode through a tapered roller bearing 8; the rotary barrel structure 4 consists of a support upright post 5, a rotary ring 6, a rotary barrel shell 7 and a honeycomb inner core 10, wherein the rotary barrel shell 7 is tightly sleeved with the honeycomb inner core 10 inside, is supported by the rotary ring 6 to stand in the middle of upper and lower side protective frames, and the two side protective rings 1 are connected with the support upright post 5 through bolts; the connecting piece 9 is connected with the connecting rod 3 through welding.

The anti-collision device is formed by two welded annular frames and eight rotary cylinders from the appearance point of view.

As shown in fig. 3 and 4, the rotary barrel shell 7 is made of a blend material of EVA and polyethylene, the inside of the rotary barrel shell is of a honeycomb inner core 10 structure made of aluminum alloy, the rotary barrel shell 7 is tightly sleeved with the inside aluminum alloy honeycomb inner core 10, when the unmanned aerial vehicle collides with an obstacle, the direction of the impact force can be changed by the rotary barrel structure 4, the impact force perpendicular to the direction of the vehicle body is reduced, and the inside honeycomb inner core 10 structure can ensure that the unmanned aerial vehicle has good damping capacity and provides a large stressed surface thickness when being subjected to external impact; can absorb, decompose the high-speed impact that the collision produced under the two dual function, the impact that the part received simultaneously can disperse on each support post 5, and the rotation of rotatory bucket of stack makes unmanned aerial vehicle can ensure fuselage safety after bumping, keeps unmanned aerial vehicle to continue the navigation along original flight path.

As shown in fig. 4 and 5, the honeycomb core 10 is composed of 2 layers of non-standard hexagonal interlayers; the non-standard hexagon is designed to be symmetrical, the side length of the non-standard hexagon with the outward axis is wider, compared with a regular hexagon, the side lengths of a and b are increased, and the included angle theta between a and b is increased; when collision occurs, acting force F is applied to the structure of the honeycomb core 10, b receives force fa transmitted by a, and the fa is decomposed, wherein the effect of deformation caused by force fb perpendicular to the side b is most remarkable, and the magnitude of fb is equal to fa sin theta; because the theta angle enlarges and can lead to the perpendicular atress increase in b limit, increases to warp, consequently the utility model provides a honeycomb inner core 10 structure has bigger deformation displacement, and the cushioning effect is better.

As shown in fig. 6, a honeycomb rotary unmanned aerial vehicle collision prevention device is installed for a quad-rotor unmanned aerial vehicle; the utility model provides a quantity that honeycomb rotation type unmanned aerial vehicle collision device set up connecting piece 9 is 2, passes through bolt fixed connection with unmanned aerial vehicle.

The scope of the present invention is not limited to the above embodiments, and other technical solutions formed by arbitrary combinations of the above embodiments or equivalent features may be adopted by those skilled in the art without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. The utility model provides a honeycomb rotation type unmanned aerial vehicle collision device which characterized in that: the device mainly comprises a protective frame, eight rotary barrel structures (4) arranged on the side surfaces of the protective frame and a connecting piece (9) arranged in the protective frame; the protective frame consists of a protective ring (1), a fixed rod (2) and a connecting rod (3), the protective ring, the fixed rod and the connecting rod are uniformly distributed on the upper side and the lower side, one side of the fixed rod (2) is connected with the protective ring (1) in a welding manner, and the other side of the fixed rod is connected with the connecting rod (3) in a sleeving manner through a tapered roller bearing (8); the rotary barrel structure (4) consists of a supporting upright post (5), a rotary ring (6), a rotary barrel shell (7) and a honeycomb inner core (10), wherein the rotary barrel shell (7) is tightly sleeved with the honeycomb inner core (10) inside, is supported by the rotary ring (6) to stand between an upper side protective frame and a lower side protective frame, and the two side protective rings (1) are connected with the supporting upright post (5) through bolts; the connecting piece (9) is connected with the connecting rod (3) through welding.

2. The cellular rotary unmanned aerial vehicle collision device of claim 1, wherein: the number of the fixing rods (2) distributed on the upper side and the lower side is 8 respectively.

3. The cellular rotary unmanned aerial vehicle collision device of claim 1, wherein: one side of the fixed rod (2) is connected with the protective ring (1) in a welding mode, and the other side of the fixed rod is connected with the connecting rod (3) in a sleeved mode through the tapered roller bearing (8).

4. The cellular rotary unmanned aerial vehicle collision device of claim 1, wherein: the connecting piece (9) is a regular pentagon.

5. The honeycomb rotary type unmanned aerial vehicle anti-collision device according to claim 1, characterized in that: the rotary barrel structure (4) consists of a support upright post (5), a rotary ring (6), a rotary barrel shell (7) and a honeycomb inner core (10) and is vertically distributed around the device.

6. The cellular rotary unmanned aerial vehicle collision device of claim 1, wherein: the number of the rotary barrel structures (4) is 8.

7. The cellular rotary unmanned aerial vehicle collision device of claim 1, wherein: the honeycomb core (10) is composed of 2 layers of non-standard hexagonal interlayers.