WO2024098546A1

WO2024098546A1 - Water take-off and landing unmanned aerial vehicle capable of generating power by utilizing wave energy

Info

Publication number: WO2024098546A1
Application number: PCT/CN2023/070948
Authority: WO
Inventors: 沈海龙; 曹朝辉; 王璐瑶
Original assignee: 哈尔滨工程大学
Priority date: 2022-11-10
Filing date: 2023-01-06
Publication date: 2024-05-16
Also published as: CN115535234A

Abstract

A water take-off and landing unmanned aerial vehicle capable of generating power by utilizing wave energy, comprising a fuselage unit (1), floating body units (2), supporting units (3), and power generation units (4). Each floating body unit (2) comprises a buoy (5), each supporting unit (3) comprises a supporting rod (6), and each power generation unit (4) comprises a generator (7) and a rotating shaft (8). When operating on water, the unmanned aerial vehicle can land or park on a wave-fluctuating sea surface by means of the floating body units (2). When sea waves act on the buoys (5), a vertical upward acting force can be applied to the buoys (5), and the buoys (5) move in the vertical direction relative to the fuselage unit. When the buoys (5) move, the buoys (5) transmit the acting force to the supporting rods (6), such that the supporting rods (6) are compressed, and the stability of the fuselage unit is ensured. When the buoys fall back along with the waves, the rotating shafts (8) continue to rotate, and the supporting rods (6) return to an initial state. The buoys (5) drive, during moving, the rotating shafts (8) to rotate. The generators (7) generate power and supply the power to the fuselage unit (1). The water take-off and landing unmanned aerial vehicle capable of generating power by utilizing wave energy reasonably utilizes wave energy, the endurance time of the unmanned aerial vehicle is prolonged, and the wave resistance of the unmanned aerial vehicle is improved.

Description

A water take-off and landing drone that uses wave energy to generate electricity

Technical Field

The invention relates to the technical field of unmanned aerial vehicles and their peripheral supporting facilities, and in particular to a water take-off and landing unmanned aerial vehicle that utilizes wave energy to generate electricity.

Background technique

Wave energy is a specific form of ocean energy and one of the most important energy sources in ocean energy. As a clean and pollution-free new energy source, wave energy has the advantages of large reserves, wide distribution and high energy density. Its development and utilization are very important to alleviate the energy crisis and reduce environmental pollution.

The surging movement of waves generates huge, eternal and environmentally friendly energy, but waves will also affect the normal operation of wading equipment. For example, when a drone takes off/landing on water, high sea conditions will affect the normal take-off/landing, and harsh operating conditions will also reduce the drone's endurance, further affecting the drone's ability to operate at sea.

Therefore, how to change the existing technology to minimize the impact of waves on the operating capability of water take-off and landing drones, and to utilize the continuous wave energy to supplement the power of water take-off and landing drones to improve the endurance of water drones, has become an urgent problem to be solved by technical personnel in this field.

Summary of the invention

The purpose of the present invention is to provide a water take-off and landing UAV that uses wave energy to generate electricity, so as to solve the problems existing in the above-mentioned prior art, rationally utilize ocean wave resources, improve the wave resistance performance of the water take-off and landing UAV, and supplement the energy of the water take-off and landing UAV.

To achieve the above object, the present invention provides the following solution: The present invention provides a water take-off and landing drone that uses wave energy to generate electricity, comprising:

fuselage unit;

A floating unit, wherein the floating unit comprises a buoy, and the buoy can float on the water surface;

A support unit, wherein the support unit comprises a support rod, one end of the support rod is connected to the fuselage unit, the other end of the support rod is connected to the buoy, and the support rod is a telescopic rod;

The power generation unit comprises a generator and a rotating shaft. The generator is fixed to the fuselage unit and can supply power to the fuselage unit. The rotating shaft is connected to the generator. The buoy is transmission-connected to the rotating shaft. The buoy can drive the rotating shaft to rotate.

Preferably, the support rod includes an upper rod and a lower rod, the upper rod is hinged to the fuselage unit, the lower rod is hinged to the pontoon, the lower rod is slidably connected to the upper rod, and an elastic member is provided between the lower rod and the upper rod.

Preferably, the fuselage unit comprises a fixing rod, and the support rod is hinged to the fixing rod;

The upper rod has a slot, the lower rod has an insertion rod, the insertion rod can be slidably inserted into the slot, and the elastic member is a spring, which is sleeved on the insertion rod.

Preferably, the power generation unit also includes a turntable and a rocker, the turntable is connected to the rotating shaft, one end of the rocker is hinged to the turntable, the other end of the rocker is hinged to the buoy, and the hinge axis of the rocker and the turntable is parallel to the axis of the rotating shaft.

Preferably, the turntable has a handle, and the rocker is rotatably connected to the handle.

Preferably, the handle is a cylindrical structure, the axis of the handle is parallel to the axis of the rotating shaft, and the rocker is rotatably mounted on the outside of the handle.

Preferably, a connecting seat is provided on the buoy, the rocker is hinged to the connecting seat, and a bearing is provided between the rocker and the connecting seat.

Preferably, the turntable has a hollow structure.

Preferably, the number of the pontoons is two, the two pontoons are arranged parallel to the length direction of the fuselage unit, and are symmetrically arranged on both sides of the fuselage unit with the center line of the fuselage unit as the axis, each of the pontoons is connected to two groups of the power generation units, the power generation units correspond to the support units one by one, and the two groups of the support units are symmetrically arranged with the center line of the pontoons as the axis.

Preferably, the floating unit, the supporting unit and the power generation unit are all symmetrically arranged with the longitudinal center line of the fuselage unit as an axis.

Compared with the prior art, the present invention has achieved the following technical effects:

The water take-off and landing UAV that utilizes wave energy to generate electricity of the present invention can land or anchor on the undulating sea surface with the help of the floating body unit when performing water operations. When the waves act on the buoy, a vertical upward force is applied to the buoy, and the buoy generates vertical movement relative to the fuselage unit. While the buoy moves, the buoy transmits a force to the support rod, so that the support rod is compressed, thereby ensuring the stability of the fuselage unit and improving the wave resistance of the water take-off and landing UAV. When the buoy falls back with the waves, the rotating shaft continues to rotate, and the support rod returns to the initial state. During the movement of the buoy, the rotating shaft is driven to rotate at the same time, and the generator generates electricity and supplies power to the fuselage unit, thereby improving the endurance of the water take-off and landing UAV. The present invention reasonably utilizes wave energy, prolongs the endurance time of the UAV, and at the same time improves the UAV's ability to resist waves, ensures the operational reliability of the UAV, improves the water operation performance of the UAV, and improves its endurance.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the structure of a water take-off and landing drone utilizing wave energy for power generation according to the present invention;

FIG2 is a schematic structural diagram of an upper section of a support rod of a water take-off and landing UAV utilizing wave energy for power generation according to the present invention;

FIG3 is a schematic structural diagram of the lower section of the support rod of the water take-off and landing UAV utilizing wave energy for generating electricity according to the present invention.

Among them, 1 is a fuselage unit, 2 is a floating unit, 3 is a supporting unit, 4 is a power generation unit, 5 is a buoy, 6 is a supporting rod, 601 is an upper rod, 602 is a lower rod, 603 is a slot, 604 is an insert rod, 7 is a generator, 8 is a rotating shaft, 9 is an elastic part, 10 is a fixing rod, 11 is a turntable, 12 is a rocker, 13 is a handle, 14 is a connecting seat, and 15 is a hinged seat.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

The purpose of the present invention is to provide a water take-off and landing UAV that uses wave energy to generate electricity, so as to solve the problems existing in the above-mentioned prior art, reasonably utilize ocean wave resources, improve the wave resistance performance of the water take-off and landing UAV, and supplement the energy of the water take-off and landing UAV.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to Figures 1 to 3, wherein Figure 1 is a schematic diagram of the structure of the water take-off and landing UAV using wave energy to generate electricity according to the present invention, Figure 2 is a schematic diagram of the structure of the upper section of the support rod of the water take-off and landing UAV using wave energy to generate electricity according to the present invention, and Figure 3 is a schematic diagram of the structure of the lower section of the support rod of the water take-off and landing UAV using wave energy to generate electricity according to the present invention.

The present invention provides a water take-off and landing drone that utilizes wave energy to generate electricity, comprising a fuselage unit 1, a floating unit 2, a support unit 3 and a power generation unit 4, wherein the floating unit 2 comprises a buoy 5, and the buoy 5 can float on the water surface; the support unit 3 comprises a support rod 6, one end of the support rod 6 is connected to the fuselage unit 1, and the other end of the support rod 6 is connected to the buoy 5, and the support rod 6 is a telescopic rod; the power generation unit 4 comprises a generator 7 and a rotating shaft 8, the generator 7 is fixed to the fuselage unit 1 and can supply power to the fuselage unit 1, the rotating shaft 8 is connected to the generator 7, the buoy 5 is transmission-connected to the rotating shaft 8, and the buoy 5 can drive the rotating shaft 8 to rotate.

The water take-off and landing UAV utilizing wave energy for power generation of the present invention can land or anchor on the undulating sea surface with the help of the floating unit 2 when performing water operations. When the waves act on the buoy 5, a vertical upward force is applied to the buoy 5, and the buoy 5 generates a vertical movement relative to the fuselage unit 1. While the buoy 5 moves, the buoy 5 transmits a force to the support rod 6, so that the support rod 6 is compressed, thereby ensuring the stability of the fuselage unit 1. When the buoy 5 falls back with the waves, the rotating shaft 8 continues to rotate, and the support rod 6 returns to its initial state. During the movement of the buoy 5, the rotating shaft 8 is also driven to rotate, and the rotating shaft 8 drives the generator 7 to generate electricity and supply power to the fuselage unit 1. The present invention reasonably utilizes wave energy, prolongs the flight time of the UAV, and at the same time improves the UAV's ability to resist waves, ensures the operating reliability of the UAV, and improves the UAV's water operation performance.

Specifically, the support rod 6 includes an upper rod 601 and a lower rod 602. The upper rod 601 is hinged to the fuselage unit 1, and the lower rod 602 is hinged to the buoy 5. The lower rod 602 is slidably connected to the upper rod 601. An elastic member 9 is arranged between the lower rod 602 and the upper rod 601. The elastic member 9 can be a spring, which is mounted on the outside of the lower rod 602. The two ends of the spring are respectively connected to the upper rod 601 and the lower rod 602. When the buoy 5 falls back with the waves, the buoy 5 falls back under the action of the elastic member 9 restoring the deformation, thereby improving the working reliability of the support unit 3.

In order to facilitate the connection with the support rod 6, the fuselage unit 1 includes a fixing rod 10, and the support rod 6 is hinged to the fixing rod 10. In this specific embodiment, the upper rod 601 has a slot 603, and the lower rod 602 has an insertion rod 604, and the insertion rod 604 can be slidably inserted into the slot 603, and the elastic member 9 is sleeved on the insertion rod 604. Under static water conditions, the insertion rod 604 extends into the slot 603 and there is a certain distance between the top of the insertion rod 604 and the bottom of the slot 603, which is the distance between the lowest point and the highest point of the movement of the handle 13 on the turntable 11.

More specifically, the power generation unit 4 further includes a turntable 11 and a rocker 12. The turntable 11 is connected to the rotating shaft 8. One end of the rocker 12 is hinged to the turntable 11, and the other end of the rocker 12 is hinged to the buoy 5. The hinge axis of the rocker 12 and the turntable 11 is parallel to the axis of the rotating shaft 8. When the buoy 5 moves in the vertical direction, the rocker 12 pushes the turntable 11 to rotate, and the turntable 11 drives the rotating shaft 8 to rotate, so that the generator 7 can generate electricity. It should be noted here that the support rod 6 is tilted, the lower section rod 602 is arranged close to the hinge point between the rocker 12 and the buoy 5, and the upper section rod 601 extends in a direction away from the rotating shaft 8. When the buoy 5 falls back with the waves, under the action of the elastic member 9 restoring the deformation, the support rod 6 can apply vertical and horizontal forces to the buoy 5, so as to avoid the phenomenon of "stuck" of the rocker 12 after it rises to the highest position, thereby improving the working reliability of the power generation unit 4. It should be explained here that when the handle 13 on the turntable 11 rises to the highest position, the top of the plug 604 is completely in contact with the bottom of the slot 603. If the wave surface drops at this time, the handle 13 moves downward and the support rod 6 extends; if the wave surface continues to rise at this time, the device as a whole performs rigid movement. In the process of one wave surface rising and falling, the turntable 11 of the power generation unit 4 just rotates one circle. In actual applications, the movable stroke of the support rod 6 can also be adjusted according to the specific working conditions to improve the flexibility and adaptability of the device. In other specific embodiments of the present invention, the buoy 5 can also be driven to rotate by a transmission structure such as a gear rack.

In this specific embodiment, the turntable 11 has a handle 13, and the rocker 12 is rotatably connected to the handle 13. The turntable 11 is provided with the handle 13, which facilitates the installation and positioning of the rocker 12. The handle 13 is a cylindrical structure, the axis of the handle 13 is parallel to the axis of the rotating shaft 8, and there is a gap between the axis of the handle 13 and the axis of the rotating shaft 8, and the rocker 12 is rotatably mounted on the outside of the handle 13.

At the same time, a connection seat 14 is provided on the buoy 5, and the rocker 12 is hinged to the connection seat 14, which facilitates the installation of the rocker 12. A bearing is provided between the rocker 12 and the connection seat 14, which improves the relative rotation smoothness of the rocker 12 and the buoy 5. Similarly, an articulated seat 15 can also be provided between the support rod 6 and the buoy 5 and the fuselage unit 1 to facilitate the rotation connection and improve the working stability of the device.

In addition, the turntable 11 has a hollow structure, which can reduce the mass of the turntable 11 and reduce wind resistance, while also making it convenient for operators to observe the working status of the power generation unit 4.

Furthermore, there are two pontoons 5, which are arranged parallel to the length direction of the fuselage unit 1 and are symmetrically arranged on both sides of the fuselage unit 1 with the center line of the fuselage unit 1 (here the center line of the fuselage unit 1 is the center line parallel to the length direction) as the axis. Each pontoon 5 is connected to two groups of power generation units 4, and the power generation units 4 correspond to the support units 3 one by one. The two groups of support units 3 are symmetrically arranged with the center line of the pontoon 5 (here the center line of the pontoon 5 is the center line parallel to the width direction of the pontoon 5) as the axis, which further improves the stability of the UAV and enhances the UAV's water operation capability.

It is also necessary to emphasize that the pontoon 5, the fuselage unit 1 and the two groups of power generation units 4 can form a parallelogram mechanism. During the movement of the power generation unit 4, the parallelogram mechanism can not only help to overcome the uncertain position of the movement, but also increase the maximum starting traction force, thereby improving the working reliability of the power generation unit 4.

In addition, the floating unit 2, the supporting unit 3 and the power generation unit 4 are all symmetrically arranged with the longitudinal center line of the fuselage unit 1 as the axis, which is beneficial to improving the structural symmetry of the UAV and improving the operating stability and reliability of the UAV.

When the water take-off and landing UAV utilizing wave energy for power generation of the present invention lands on a wavy sea surface or is moored on a wavy sea surface, the vertical relative motion between the buoy 5 and the fuselage unit 1 can be utilized, and the vertical reciprocating motion can be converted into a rotational motion, thereby driving the generator 7 to generate electricity and supply power to the fuselage unit 1, thereby extending the operating time and range of the water take-off and landing UAV utilizing wave energy for power generation, making full use of wave energy, and in a sense, realizing an unlimited range and unlimited operating time of a water take-off and landing UAV utilizing wave energy for power generation.

The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

A water take-off and landing drone that uses wave energy to generate electricity, characterized by comprising:

fuselage unit;

A floating unit, wherein the floating unit comprises a buoy, and the buoy can float on the water surface;

A support unit, wherein the support unit comprises a support rod, one end of the support rod is connected to the fuselage unit, the other end of the support rod is connected to the buoy, and the support rod is a telescopic rod;

The power generation unit comprises a generator and a rotating shaft. The generator is fixed to the fuselage unit and can supply power to the fuselage unit. The rotating shaft is connected to the generator. The buoy is transmission-connected to the rotating shaft. The buoy can drive the rotating shaft to rotate.
The water take-off and landing drone using wave energy for power generation according to claim 1 is characterized in that: the support rod includes an upper rod and a lower rod, the upper rod is hinged to the fuselage unit, the lower rod is hinged to the buoy, the lower rod is slidably connected to the upper rod, and an elastic member is provided between the lower rod and the upper rod.
The water take-off and landing drone utilizing wave energy for power generation according to claim 2 is characterized in that: the fuselage unit comprises a fixing rod, and the support rod is hinged to the fixing rod;

The upper rod has a slot, the lower rod has an insertion rod, the insertion rod can be slidably inserted into the slot, and the elastic member is a spring, which is sleeved on the insertion rod.
The water take-off and landing drone that utilizes wave energy to generate electricity according to claim 1 is characterized in that: the power generation unit also includes a turntable and a rocker, the turntable is connected to the rotating shaft, one end of the rocker is hinged to the turntable, and the other end of the rocker is hinged to the buoy, and the hinge axis of the rocker and the turntable is parallel to the axis of the rotating shaft.
The water take-off and landing drone using wave energy for power generation according to claim 4 is characterized in that the turntable has a handle, and the rocker is rotatably connected to the handle.
The water take-off and landing drone that utilizes wave energy to generate electricity according to claim 5 is characterized in that: the handle is a cylindrical structure, the axis of the handle is parallel to the axis of the rotating shaft, and the rocker is rotatably mounted on the outside of the handle.
The water take-off and landing drone that utilizes wave energy to generate electricity according to claim 4 is characterized in that a connecting seat is provided on the buoy, the rocker is hinged to the connecting seat, and a bearing is provided between the rocker and the connecting seat.
The water take-off and landing drone utilizing wave energy for power generation according to claim 4 is characterized in that the turntable has a hollow structure.
According to claim 4, the water take-off and landing drone that uses wave energy to generate electricity is characterized in that: there are two buoys, the two buoys are arranged parallel to the length direction of the fuselage unit, and are symmetrically arranged on both sides of the fuselage unit with the center line of the fuselage unit as the axis, each of the buoys is connected to two groups of the power generation units, the power generation units correspond to the support units one by one, and the two groups of the support units are symmetrically arranged with the center line of the buoy as the axis.
The water take-off and landing drone that utilizes wave energy to generate electricity according to claim 9 is characterized in that the floating unit, the supporting unit, and the power generation unit are all symmetrically arranged with the longitudinal center line of the fuselage unit as the axis.