CN114503974B

CN114503974B - Electrostatic spraying unmanned aerial vehicle

Info

Publication number: CN114503974B
Application number: CN202210231637.6A
Authority: CN
Inventors: 岳进; 谢永华
Original assignee: Chengdu Vocational College of Agricultural Science and Technology
Current assignee: Chengdu Vocational College of Agricultural Science and Technology
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2024-10-01
Anticipated expiration: 2042-03-10
Also published as: CN114503974A

Abstract

The invention discloses an electrostatic spraying unmanned aerial vehicle, which comprises an unmanned aerial vehicle body integrated with a central control system, a hanging frame connected to the unmanned aerial vehicle body, a medicine box arranged on the hanging frame, an unmanned aerial vehicle lifting bracket arranged at the bottom of the hanging frame, and a spraying device arranged on the hanging frame or the lifting bracket; the spraying device comprises a solution chamber, an electrostatic generator and an electrostatic spray gun connected with the electrostatic generator, wherein the output end of the electrostatic spray gun is communicated to the solution chamber, and the bottom of the solution chamber is connected with a dispersing mechanism. According to the invention, by arranging the novel spraying structure, the electrostatic liquid medicine can be adsorbed on the back of the leaves in the traditional spraying process, so that resources can be saved, and economic and social benefits are brought.

Description

Electrostatic spraying unmanned aerial vehicle

Technical Field

The invention belongs to the technical field of road and bridge construction, and particularly relates to an electrostatic spraying unmanned aerial vehicle.

Background

Along with economic development, unmanned aerial vehicle technique has obtained the progress of great footage and the steady development, can be applied to a plurality of fields of folk life, for example can apply to express delivery transportation, adopts unmanned aerial vehicle to carry out the express delivery transportation and can stride across ground barrier and not receive the topography restriction, can effectively improve conveying efficiency. The unmanned aerial vehicle can be applied to the agricultural production field, such as the plant protection field, on a large-scale farm, farm or modern farm, unmanned aerial vehicle plant protection application is very frequent, unmanned aerial vehicle adopts the spraying mode to replace the manual work fast, and the effect of saving the human cost can be played in the aspect of developing, on the other hand can also play the water saving, reduce pesticide and spray the quantity simultaneously.

However, in the prior art, when the pesticide spraying device on the unmanned aerial vehicle sprays the pesticide liquid, the pesticide particles at the spraying position are too large, and atomization is insufficient, so that the waste of the pesticide liquid is caused. When the pesticide is sprayed to crops, particularly the pesticide for killing insects, the effect of spraying the pesticide to the back surfaces of the leaves of the crops is better because the pests are mainly on the back surfaces of the leaves of the crops. In the traditional mode, the problem is mainly solved through manual spraying angles, the unmanned aerial vehicle blows the leaves reversely through a strong wind field, then the back surfaces of the leaves can be sprayed with medicines, and therefore, no one needs to have a large load and strong downward pressure wind field. At present, only a single-rotor helicopter with a large load can be realized, but the single-rotor helicopter is high in price, complex in operation, low in economic benefit and high in carrier cost.

Disclosure of Invention

The invention aims to provide an electrostatic spraying unmanned aerial vehicle, which can adopt electrostatic liquid medicine to be adsorbed on the back of leaves in the traditional spraying process by arranging a novel spraying structure, so that resources can be saved, and economic and social benefits are brought.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

The electrostatic spraying unmanned aerial vehicle comprises an unmanned aerial vehicle body integrated with a central control system, a hanging frame connected to the unmanned aerial vehicle body, a medicine box arranged on the hanging frame, an unmanned aerial vehicle lifting bracket arranged at the bottom of the hanging frame, and a spraying device arranged on the hanging frame or the lifting bracket; the spraying device comprises a solution chamber, an electrostatic generator and an electrostatic spray gun connected with the electrostatic generator, wherein the output end of the electrostatic spray gun is communicated to the solution chamber, and the bottom of the solution chamber is connected with a dispersing mechanism.

Further, the solution chamber is connected to the medicine box through a transfusion tube, a booster pump is arranged on the transfusion tube, and the inlet connection part of the solution chamber is arranged at the side.

Further, the electrostatic generator is externally wrapped with a leakage-proof protective layer, and the leakage-proof protective layer is a ceramic layer.

Further, an opening communicated with the electrostatic spray gun is formed in the end portion of the leakage-proof protective layer.

Further, the electrostatic spray gun comprises a gun body and a gun head, wherein a puncture-preventing rear shell is arranged at the tail part of the gun body, and an inner shell for accommodating an electrostatic generator is arranged in the gun body.

Further, the output end of the static generator is connected with the gun head through a protection joint.

Further, the gun head extends into the solution chamber.

Further, the dispersion mechanism comprises a conical dispersion head and a sprayer, wherein the conical dispersion head is fixed in the outlet direction of the solution chamber.

Further, the sprayer comprises a control relay and a spray head, and a camera is arranged on the spray head.

Further, an in-wheel motor is arranged in the sprayer.

Compared with the prior art, the invention has the advantages that: firstly, the unmanned aerial vehicle is adopted for plant protection, so that the seedling belt is not damaged, the operation cost is low, the unmanned aerial vehicle can be well adapted to various different types of large and small field blocks, and the operation is more accurate compared with the traditional dripping.

In addition, the electrostatic generation system is added in the unmanned aerial vehicle spraying system, and when the liquid medicine enters the solution chamber through the pressurization of the pump, the liquid medicine can pass through the high-voltage electric field, so that negative charges are carried on, the liquid medicine with negative charges can be directly adsorbed on the back surfaces of the leaves after being sprayed, the back surfaces of the leaves are not required to be blown up, the plant protection effect is better, and damage to plants in a plant protection area can be avoided.

And secondly, the electrostatic generator is also provided with the ceramic leakage-proof protective layer, so that the problem that the electrostatic generator is broken down by high-voltage static electricity when generating an electrostatic field can be effectively avoided compared with the traditional electrostatic spray gun, and the unmanned aerial vehicle is protected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electrostatic spraying unmanned aerial vehicle provided by the invention.

Fig. 2 is a schematic structural diagram of a spraying device of the electrostatic spraying unmanned aerial vehicle.

Fig. 3 is a schematic structural view of a conical flow dispersing head of the electrostatic spraying unmanned aerial vehicle.

Reference numerals: the unmanned aerial vehicle comprises a 1-unmanned aerial vehicle body, a 2-medical kit, a 3-lifting bracket, a 4-solution chamber, a 5-infusion tube, a 6-flow dispersing mechanism, a 7-electrostatic spray gun, an 8-leakage-proof protective layer, a 9-puncture-proof rear shell, a 10-conical flow dispersing head and a 13-hanging bracket.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

As shown in fig. 1-3, an electrostatic spraying unmanned aerial vehicle comprises an unmanned aerial vehicle body 1 integrated with a central control system, a hanging frame 13 connected to the unmanned aerial vehicle body, a medicine box 2 arranged on the hanging frame 13, an unmanned aerial vehicle take-off and landing bracket 3 arranged at the bottom of the hanging frame 13, and a spraying device arranged on the take-off and landing bracket 3; the spraying device comprises a solution chamber 4, an electrostatic generator and an electrostatic spray gun 7 connected with the electrostatic generator, wherein the output end of the electrostatic spray gun 7 is communicated to the solution chamber 4, and the bottom of the solution chamber 4 is connected with a dispersing mechanism 6.

Compared with the prior art, the spraying device provided by the invention is provided with the high-voltage electrostatic generator, a high-voltage electrostatic field is formed in the channel through which the liquid medicine in the solution chamber 4 flows through by the discharge needle, the liquid medicine is negatively charged when passing through the electrostatic field in the channel, and the negatively charged liquid medicine can be adsorbed to the back of plants in the plant protection area after being sprayed by the scattering mechanism 6. The problem that in the conventional art, need blow plant leaves in the plant protection area through wind-force and carry out the back and spray is solved, can avoid causing the damage to the plant in the plant protection area when carrying out high-efficient spraying, the liquid medicine that can bring sprays technical effect also better.

The solution chamber 4 is connected to the medicine box 2 through a transfusion tube 5, and a booster pump is arranged on the transfusion tube 5 and the inlet connection of the solution chamber 4 is arranged at the side. The inlet of the solution chamber 4 arranged in the lateral direction can prevent the liquid medicine from being directly sprayed into the gun head of the electrostatic gun to a certain extent, and prevent the sealing protection ring from being directly burnt out by the corrosive liquid medicine.

The electrostatic generator is externally wrapped with a leakage-proof protective layer, and the leakage-proof protective layer 8 is a ceramic layer. The end of the leakage-proof protective layer is provided with an opening communicating with the electrostatic spray gun 7. The electrostatic spray gun 7 comprises a gun body and a gun head, wherein a puncture-proof rear shell 9 is arranged at the tail part of the gun body, and an inner shell for accommodating an electrostatic generator is arranged in the gun body. The output end of the electrostatic generator is connected with the gun head through a protection joint, and the gun head stretches into the solution chamber 4. In order to form an effective electrostatic field, it is necessary to convert the low voltage electricity into high voltage electricity through the electrostatic generator, in the conventional technology, in order to ensure insulation performance, plastics are basically used as the outer shell of the electrostatic generator and the electrostatic gun, but plastics have good insulation performance, but due to the limitation of the material of the plastics, the high voltage electricity which is easily generated breaks down in the instant, thereby causing light electrostatic leakage, even causing the electrostatic generator or unmanned aerial vehicle to be burned out, and causing a great amount of economic loss. The invention directly adopts ceramic as an insulating protector, so that the problem of high-voltage electrostatic breakdown can be effectively avoided, and the unmanned aerial vehicle is protected.

The dispersion mechanism 6 includes a tapered dispersion head 10 and a nebulizer, and the tapered dispersion head 10 is fixed in the outlet direction of the solution chamber 4. The sprayer comprises a control relay and a spray head, and a camera is arranged on the spray head. The inside of the sprayer is provided with a hub motor. When unmanned aerial vehicle carries out the operation, install the state that the camera on the atomizer can the real-time feedback spraying, supplementary operating personnel carries out remote control according to the spraying state. The driving force of the atomizer is provided by an in-wheel motor and controlled by a brushless DC motor driver regulating PWM. The hub motor has the advantages of light steering, higher transmission efficiency and the like. According to unmanned aerial vehicle's characteristics, can adopt the in-wheel motor of power 0.5KW, rated torque 45Nm, adopt STM32F103ZGT6 type singlechip to control the atomizer and carry out rotatory spraying through in-wheel motor control atomizer, form the spraying.

When in actual use, before taking off, the liquid medicine to be sprayed is injected into the medicine chest 2, and a stirring device or a stirrer can be arranged in the medicine chest 2 for more uniformly mixing the liquid medicine, so that the phenomena of sedimentation and the like in the liquid medicine are avoided, and the liquid medicine can be designed according to specific requirements.

After the liquid medicine is filled, an unmanned aerial vehicle is remotely operated by an operator to fly against a plant protection area, and then a pump and an electrostatic generator are started, the pump pumps the liquid medicine from the medicine box 2 to the solution chamber 4, at the moment, the electrostatic generator starts to work and forms an electrostatic field at the inlet position of the solution chamber 4, and when the liquid medicine pumped by the pump passes through the electrostatic field, the liquid medicine is attached with negative charges. When the liquid medicine passes through the conical dispersing head 10, the liquid medicine flow is dispersed, and then the spray head below the conical dispersing head is controlled by the hub motor to rotate, and when the dispersed liquid medicine flow is sprayed out of the spray head, the formed liquid medicine spray is more finely dispersed, and can be better adsorbed on the back of the leaves.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrostatic spraying unmanned aerial vehicle, which is characterized in that: the unmanned aerial vehicle comprises an unmanned aerial vehicle body (1) integrated with a central control system, a hanging frame (13) connected to the unmanned aerial vehicle body, a medicine box (2) arranged on the hanging frame (13), an unmanned aerial vehicle lifting bracket (3) arranged at the bottom of the hanging frame (13), and a spraying device arranged on the hanging frame (13) or the lifting bracket (3); the spraying device comprises a solution chamber (4), an electrostatic generator and an electrostatic spray gun (7) connected with the electrostatic generator, wherein the output end of the electrostatic spray gun (7) is communicated with the solution chamber (4), and the bottom of the solution chamber (4) is connected with a dispersing mechanism (6); the solution chamber (4) is connected to the medicine box (2) through a transfusion tube (5), a booster pump is arranged on the transfusion tube (5), and the connection part of the inlet of the solution chamber (4) is arranged at the side; the electrostatic generator is externally wrapped with a leakage-proof protective layer, and the leakage-proof protective layer (8) is a ceramic layer; an opening communicated with the electrostatic spray gun (7) is formed at the end part of the leakage-proof protective layer; the electrostatic spray gun (7) comprises a gun body and a gun head, wherein a puncture-preventing rear shell (9) is arranged at the tail part of the gun body, and an inner shell for accommodating an electrostatic generator is arranged in the gun body; the output end of the electrostatic generator is connected with the gun head through a protection joint; the gun head stretches into the solution chamber (4);

The dispersing mechanism (6) comprises a conical dispersing head (10) and a sprayer, and the conical dispersing head (10) is fixed in the outlet direction of the solution chamber (4);

The sprayer comprises a control relay and a spray head, and a camera is arranged on the spray head;

And a hub motor is arranged in the sprayer.