CN113443133A

CN113443133A - Plant protection unmanned aerial vehicle

Info

Publication number: CN113443133A
Application number: CN202110930241.6A
Authority: CN
Inventors: 胡晓畑; 郑永明
Original assignee: Hangzhou Q Fly Uav Intelligent Technology Co ltd
Current assignee: Hangzhou Q Fly Uav Intelligent Technology Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-09-28

Abstract

The invention relates to the relevant technical field of unmanned aerial vehicles, and discloses a plant protection unmanned aerial vehicle, which comprises a rack, a landing gear, a battery, a pesticide storage box and an avionic module, wherein a power assembly is arranged on the rack and comprises a horn and wings, the horn is provided with a spray head component, the distance between the spray head components on two sides of the advancing direction of the unmanned aerial vehicle is greater than the distance between the spray head components on the same side, and the effective spray width is improved by the design that the distance between the left wing and the right wing is greater than the distance between the front wing and the rear wing, so that the spraying working efficiency is improved, the length of the horn does not need to be excessively increased, and under the condition of realizing the same effective spray width, the unmanned aerial vehicle in the application has smaller volume and is convenient to carry and transport; through the design that distance is greater than distance between the front and back wing between the wing about making, make unmanned aerial vehicle moment of inertia in flight direction littleer, can improve unmanned aerial vehicle's tilting angular velocity when carrying out the brake, reduce braking distance, likewise, also can improve acceleration ability when accelerating.

Description

Plant protection unmanned aerial vehicle

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to a plant protection unmanned aerial vehicle.

Background

Current plant protection unmanned aerial vehicle sprays the width of cloth and must increase the horn and expand the size for improving spray efficiency promptly to lead to the fuselage overall dimension great, the fuselage is mostly square or vertical rectangle structure, and this type of design can lead to the horn longer. Even use the folding design of horn still to be difficult to further reduce unmanned aerial vehicle's transportation size and compactedness to, because the great reason of the whole volume of fuselage, lead to unmanned aerial vehicle's braking distance to increase, to above-mentioned problem, proposed this application.

Disclosure of Invention

The invention aims to provide a plant protection unmanned aerial vehicle, which is used for solving the problems of the prior art that the whole size of a machine body is increased and the braking distance of the unmanned aerial vehicle is long due to the increase of the spraying amplitude.

The invention is realized by the following technical scheme.

The plant protection unmanned aerial vehicle comprises a rack, a landing gear, a battery, a pesticide storage box and an avionic module, wherein a power assembly is arranged on the rack and comprises a horn and wings, spray head assemblies are arranged on the horn, and the distance between the spray head assemblies on two sides of the advancing direction of the unmanned aerial vehicle is larger than that between the spray head assemblies on the same side.

Further, the distance between the wings on two sides of the advancing direction of the unmanned aerial vehicle is larger than the distance between the wings on the same side.

Further, the frame is rectangular, and the horn is installed at four apex of frame.

Further, the explosive box is installed at the middle position of frame, avionics module and battery are located respectively the both sides of explosive box.

Further, the horn is foldably connected to the frame.

Further, the folding direction of the horn is towards the landing gear.

Further, the ratio of the distance between the nozzle assemblies on two sides of the advancing direction of the unmanned aerial vehicle to the distance between the nozzle assemblies on the same side is 1.3-1.6.

Further, the maximum radius of the wing is less than or equal to 0.9 time of the length of the horn.

Further, the battery is pluggable to be installed.

Further, the medicine storage box is detachably or fixedly arranged on the rack.

The invention has the beneficial effects that:

by means of the design that the distance between the left wing and the right wing is larger than the distance between the front wing and the rear wing, effective spraying width is improved, spraying work efficiency is improved, the length of a horn does not need to be increased too much, and the unmanned aerial vehicle is smaller in size and convenient to carry and transport under the condition of the same effective spraying width;

through the design that distance is greater than distance between the front and back wing between the wing about making, make unmanned aerial vehicle moment of inertia in flight direction littleer, can improve unmanned aerial vehicle's tilting angular velocity when carrying out the brake, reduce braking distance, likewise, also can improve acceleration ability when accelerating.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of a plant protection unmanned aerial vehicle of the present invention;

FIG. 2 is a schematic top view of a plant protection drone;

FIG. 3 is a schematic view of the wing after folding;

figure 4 is an elevation view of the wing after folding.

Detailed Description

The present invention is described in detail below with reference to fig. 1-4.

The first embodiment is as follows:

the invention relates to a plant protection unmanned aerial vehicle, which comprises a rack 7, an undercarriage 4, a battery 6, a medicine storage box 5 and an avionic module 1, wherein a power assembly 2 is installed on the rack 7, the avionic module 1 has the functions of unmanned aerial vehicle navigation, communication, operation load control and the like, the power assembly 2 comprises a horn 21, wings 22 and a motor, a spray head assembly 3 is installed on the horn 21, a strong wind area which moves violently due to the rotation of the wings 22 can be formed under the projection of the wings 22, as shown in figure 1, the spray head assembly 3 is not arranged right below the wings 22, the spray extending direction of a spray head does not pass through the strong wind area, the situation that liquid medicine is blown onto the body to corrode the body is avoided, the liquid medicine sprayed by the spray head can avoid the influence of the strong wind area to the minimum extent, so that a user can control the spraying range more accurately, and the distance between the spray head assemblies 3 on two sides of the advancing direction of the unmanned aerial vehicle is larger than the distance between the spray head assemblies 3 on the same side, namely: like fig. 2, the length of line C is greater than the length of line D to make unmanned aerial vehicle carry out the during operation, the width that shower nozzle subassembly 3 covered increases, has improved effective range, and then has improved and has sprayed work efficiency, needn't too much increase horn 21 length moreover, has just also realized under the same effective range condition that spouts, and unmanned aerial vehicle volume in this application is littleer, portable and transportation.

Preferably, the distance between the wings 22 on both sides or the center of the advancing direction of the unmanned aerial vehicle is greater than the distance between the wings 22 on the same side, that is: like fig. 2, the length of line a is greater than the length of line B, makes unmanned aerial vehicle moment of inertia in the direction of flight littleer, has realized when carrying out the brake, improves unmanned aerial vehicle's the angular velocity that verts, reduces the effect of braking distance, and in the same way, also can improve the acceleration ability when accelerating.

Preferably, the frame 7 is rectangular, the arms 21 are mounted at four vertices of the rectangular frame 7, and the four arms 21 have the same structure, so as to improve the universality of the parts.

Preferably, the medicine storage box 5 is installed in the middle of the frame 7, the avionic module 1 and the battery 6 are respectively located on two sides of the medicine storage box 5, the structural arrangement is more compact, the weight distribution is more uniform, and, because the plant protection machine operates the unmanned aerial vehicle to mainly fly back and forth, the traditional arrangement mode of the avionic module, the medicine storage box and the battery on the unmanned aerial vehicle is that the avionic module, the medicine storage box and the battery are sequentially arranged on the frame along the back and forth flying direction and are on the same line with the back and forth flying direction, when the unmanned aerial vehicle flies in pitching motion due to the arrangement mode, because the avionic module is at the head or the tail of the aircraft, the sensor inevitably has up and down displacement change besides angle change, the sensor can detect data irrelevant to control, the control difficulty is increased, and in the avionic system arranged on the left and right in the application, when the unmanned aerial vehicle flies back and forth, the attitude makes pitching motion, at this time, the navigation sensor in the avionic module only has angle change around the pitching axis of the organism without displacement change, almost no displacement offset exists, so that more data irrelevant to control is avoided, and the control is facilitated.

Preferably, the arm 21 is foldably connected to the frame 7 by a folding mechanism, which may be a multi-link mechanism, a screw locking mechanism, or other similar mechanism.

Preferably, the folding direction of the horn 21 is towards the landing gear 4, as shown in fig. 3, the horn is folded downwards from the root, the folding angle is about 90 degrees, and the nozzle group is folded in the envelope of the landing gear, so as to realize smaller folding size.

Unmanned aerial vehicle in this application sets up to the mode that interval is greater than fore-and-aft interval and horn fold down back shower nozzle group through with shower nozzle subassembly and wing and draws in the mode in the undercarriage envelope, has realized that its total volume can compare in equal efficiency, the conventional plant protection unmanned aerial vehicle of equal spray width reduces about 8%, its transportation area of occupation, folding back length and width area can reduce about 25% promptly, convenience when can great improvement conveying efficiency and actual work.

Preferably, the ratio of the distance between the spray head assemblies 3 on two sides of the advancing direction of the unmanned aerial vehicle to the distance between the spray head assemblies 3 on the same side is 1.3-1.6.

Preferably, the maximum radius of the airfoil 22 is less than or equal to 0.9 times the length of the horn 21.

Preferably, the battery 6 is installed in a pluggable manner, and the battery 6 is fixed by a guide rail designed on the frame 7 and satisfies the plugging function.

Preferably, the medicine boxes 5 are detachably or fixedly mounted on the frame 7.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a plant protection unmanned aerial vehicle which characterized in that: including frame (7), undercarriage (4), battery (6), explosive box (5) and avionics module (1), install power assembly (2) on frame (7), power assembly (2) include horn (21) and wing (22), install shower nozzle subassembly (3) on horn (21), unmanned aerial vehicle direction of advance both sides the distance is greater than the homonymy between shower nozzle subassembly (3) distance between shower nozzle subassembly (3).

2. The plant protection unmanned aerial vehicle of claim 1, wherein: the distance between the wings (22) on two sides of the advancing direction of the unmanned aerial vehicle is larger than the distance between the wings (22) on the same side.

3. A plant protection drone according to claim 1 or 2, characterized in that: the rack (7) is rectangular, and the machine arms (21) are arranged at four top points of the rack (7).

4. The plant protection unmanned aerial vehicle of claim 3, wherein: the drug storage box (5) is installed in the middle of the rack (7), and the avionics module (1) and the battery (6) are respectively located on two sides of the drug storage box (5).

5. A plant protection unmanned aerial vehicle according to claim 1 or 4, wherein: the machine arm (21) is connected with the frame (7) in a foldable manner.

6. The plant protection unmanned aerial vehicle of claim 5, wherein: the folding direction of the horn (21) is towards the undercarriage (4).

7. A plant protection drone according to any one of claims 1, 2, 4, 6, characterized in that: the ratio of the distance between the spray head assemblies (3) on two sides of the advancing direction of the unmanned aerial vehicle to the distance between the spray head assemblies (3) on the same side is 1.3-1.6.

8. The plant protection unmanned aerial vehicle of claim 7, wherein: the maximum radius of the wing (22) is less than or equal to 0.9 time of the length of the horn (21).

9. A plant protection drone according to any one of claims 1, 2, 4, 6, 8, characterized in that: the battery (6) is installed in a pluggable mode.

10. The plant protection unmanned aerial vehicle of claim 9, wherein: the medicine storage box (5) is detachably or fixedly arranged on the rack (7).