CN109677615B - Plant protection unmanned aerial vehicle - Google Patents
Plant protection unmanned aerial vehicle Download PDFInfo
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- CN109677615B CN109677615B CN201910100738.8A CN201910100738A CN109677615B CN 109677615 B CN109677615 B CN 109677615B CN 201910100738 A CN201910100738 A CN 201910100738A CN 109677615 B CN109677615 B CN 109677615B
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- unmanned aerial
- aerial vehicle
- spraying
- spraying system
- plant protection
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- 238000005507 spraying Methods 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 239000007921 spray Substances 0.000 claims abstract description 51
- 239000003814 drug Substances 0.000 claims abstract description 30
- 238000000889 atomisation Methods 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 19
- 229940079593 drug Drugs 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000000575 pesticide Substances 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 18
- 230000002349 favourable effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000000447 pesticide residue Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000010152 pollination Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
- B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U2101/00—UAVs specially adapted for particular uses or applications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention provides a plant protection unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, wherein a liquid storage tank is arranged at the bottom of the unmanned aerial vehicle body, the unmanned aerial vehicle body is also connected with at least one set of spraying system, and the spraying system comprises a plurality of spray heads capable of spraying liquid medicines with different atomization degrees; each set of spraying system is communicated with the liquid storage tank. The beneficial effects of the invention are as follows: by arranging the spraying system capable of spraying liquid medicines with different atomization degrees, the spraying system can meet the atomization demands of crops with different categories on pesticides, the atomization demands of crops with the same category on pesticides in different growth periods and the atomization demands of crops with different planting densities on pesticides. The pertinence of medicine spraying is ensured, the purpose is clear, the spraying efficiency is high-efficient, and meanwhile, the plant protection unmanned aerial vehicle is high in operation adaptability under different environments. One plant protection machine can solve the problem of the resultant force of the plurality of plant protection machines in the past, and the economic burden of enterprises or individuals is obviously reduced while the production cost is reduced.
Description
Technical Field
The invention relates to the field of agricultural machinery equipment, in particular to a plant protection unmanned aerial vehicle.
Background
In recent years, with the large-scale, mechanized and modern agricultural production, plant protection unmanned aerial vehicles gradually enter the field of view of the public. The plant protection unmanned aerial vehicle has the advantages of reliability, stability, simplicity in operation, low operation cost, high service performance, no limitation of crop growth vigor and the like, so that the plant protection unmanned aerial vehicle is rapidly applied and developed.
In general, the atomizing requirements for pesticides for different classes of crops are different, even though the same class of crops may have different atomizing requirements for pesticides during different growth cycles; in addition, the atomizing requirements of agricultural chemicals for crops of different planting densities may also vary. Correspondingly, the atomization effect is poor, the sprayed fog drops are large in volume and weight, the spraying is uneven, the fog drops can not stay on the surface of crops for a long time, and the effect of controlling the growth of the crops or the agricultural insects is poor. The atomization effect is good, the sprayed fog drops are small in volume and light in weight, and although the fog drops can be well deposited on the surfaces of crops, the residence time of pesticides on the crops is long, so that the pesticide residue is increased, and the harm to human bodies is increased. Meanwhile, the atomization effect is good, and pesticides are also easily affected by external air flow in the spraying process, so that partial crops can not obtain the pesticides.
However, in the spraying process of the existing plant protection unmanned aerial vehicle, the phenomenon that the single machine can not meet the requirements of target crops in one-time flight spraying often occurs due to the difference of crop planting density, different crop types and different requirements of different growth periods of crops on the pesticide atomization degree. In order to solve the problems, the existing solution mainly comprises purchasing plant protection unmanned aerial vehicles with different atomization degrees as much as possible, and carrying out matched spraying aiming at specific conditions of crops.
The direct consequence of the above measures is that the acquisition costs increase significantly and the economic burden on the enterprise or the individual is excessive. Likewise, a plurality of plant protection unmanned aerial vehicles fly successively to operate, so that pesticide spraying efficiency is reduced, and production cost is further improved. And the atomization degree of the pesticide cannot be adjusted by the existing spraying device, so that pesticides with the same atomization degree are applied to different fields, the economic cost is increased, or the spraying effect is reduced.
Disclosure of Invention
Aiming at the technical requirements and the defects of the prior art, the invention develops the plant protection unmanned aerial vehicle which has simple structure, high pollination efficiency and difficult pollen damage on the basis of summarizing the prior art.
The specific technical scheme of the invention is as follows:
the plant protection unmanned aerial vehicle comprises an unmanned aerial vehicle body, wherein a liquid storage tank is arranged at the bottom of the unmanned aerial vehicle body, the unmanned aerial vehicle body is also connected with at least one set of spraying system, and the spraying system comprises a plurality of spray heads capable of spraying liquid medicines with different atomization degrees; each set of the spraying system is communicated with the liquid storage tank.
Further, the unmanned aerial vehicle body includes a plurality of rotor bars that outwards extend from its top, the distal end top of rotor bar sets up the rotor, and the below of every rotor sets up one set sprinkler system.
Further, the distal end setting of rotor pole is connected sprinkler system's support, the rotor sets up the support top, the support below is connected with relative support pivoted rotary mechanism, sprinkler system connect in rotary mechanism's free end, rotary mechanism is connected with unmanned aerial vehicle's control system.
Further, the rotating mechanism comprises at least one group of rotating units arranged along the vertical direction, each group of rotating units comprises a steering engine mounting seat, a steering engine arranged on the steering engine mounting seat, a rocker arm mounting seat and a rocker arm arranged on the rocker arm mounting seat, and adjacent rotating units are fixedly connected with the free end of the rocker arm of the previous group through the steering engine mounting seat of the next group;
the steering engine mounting seat close to the rotor wing is arranged at the bottom of the support, the rocker arm mounting seat is rotationally connected with the steering engine, and the spraying system is arranged on a rocker arm far away from the rotor wing; steering wheel is connected with unmanned aerial vehicle's control system.
Further, the rotating mechanism includes two sets of rotating units arranged in a vertical direction.
Further, the spraying system comprises a centrifugal spray head and a pressure spray head; the centrifugal spray head and the pressure spray head are arranged on a rocker arm far away from the rotor wing side by side.
Further, a water pump communicated with the liquid storage tank is arranged at the bottom of the liquid storage tank, the water pump is communicated with the pressure nozzle through a first pipeline, and a first electromagnetic valve is arranged in the first pipeline; the water pump is communicated with the centrifugal spray head through a second pipeline, and a second electromagnetic valve is arranged in the second pipeline;
the water pump, the first electromagnetic valve, the second electromagnetic valve and the centrifugal spray head are all connected with the control system of the unmanned aerial vehicle.
Further, the water pump is arranged at the center of the bottom of the liquid storage tank.
Further, the liquid storage tank is funnel-shaped.
Further, the central axis of the liquid storage tank coincides with the central axis of the unmanned aerial vehicle body.
The beneficial effects of the invention are as follows:
1. in this technical scheme, but through setting up the sprinkler system of spraying different atomization degree liquid medicine to satisfy the atomizing demand of different grade crops to the pesticide, the atomizing demand of same grade crops to the pesticide at different growth cycle, and the atomizing demand of different planting density's crops to the pesticide. According to the different atomizing demands of crops to the liquid medicine under multiple conditions, the spraying system is adjusted to spray the liquid medicine with corresponding atomizing degree, so that the pertinence of the spraying of the medicine is ensured, the purpose is clear, the spraying efficiency is high, and meanwhile, the plant protection unmanned aerial vehicle is high in operation adaptability under different environments. One plant protection machine can solve the problem of the resultant force of the plurality of plant protection machines in the past, and the economic burden of enterprises or individuals is obviously reduced while the production cost is reduced.
2. In this scheme, the liquid reserve tank is the funnel form. The liquid outlet is located the bottom of funnel, and liquid medicine relies on gravity to flow to the liquid outlet, is favorable to abundant that liquid medicine used, prevents to remain. In addition, the central axis of liquid reserve tank and the central axis coincidence of unmanned aerial vehicle body. Guarantee that the liquid reserve tank does not have the influence to unmanned aerial vehicle's horizontal focus, be favorable to the equilibrium of spraying and unmanned aerial vehicle body flight's security, improve rotor unmanned aerial vehicle's flight speed, bearing capacity and duration simultaneously.
3. Because the spraying system sprays pesticides to form an umbrella shape, when four sets of rotating mechanisms on the unmanned aerial vehicle synchronously rotate to the connection lines of two sets of rotating mechanisms which are opposite in cross are mutually perpendicular, the distance between the relative positions of the four sets of spraying systems is the smallest. If the distance S between the two sets of spraying systems is equal to 2 times of the radius R of the spraying area, the spraying area of the spraying system generates the largest intersection at the central axis of the unmanned aerial vehicle, so that the amount of the liquid medicine obtained in unit area and unit time of crops at the intersection is the largest, and meanwhile, the unmanned aerial vehicle completely covers the boundary value of the crops perpendicular to the unmanned aerial vehicle, which means that the dosage is the smallest. In connection with the above theoretical analysis, it is once again clear that the rotation mechanism comprises two sets of rotation units arranged in the vertical direction. According to the scheme, the spraying system is arranged according to the requirements, so that the use of liquid medicine is saved, the range of covering crops with single medicine is utilized to the maximum extent, the use efficiency of the liquid medicine is improved, the maximization of the load is realized, the operation efficiency is improved, the missing spraying of crops can be avoided, the pesticide residue of agricultural products can be reduced, and the ideal control effect is achieved.
4. The spraying system comprises a centrifugal spray head and a pressure spray head; the centrifugal spray head and the pressure spray head are arranged on the rocker arm far away from the rotor wing side by side. The centrifugal spray head has good atomization effect but poor penetrating power, and can spray crops with low density and high requirements on the atomization effect. The pressure nozzle has poor atomization effect but good penetrating power, and can spray crops with high density and low atomization effect requirement.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a schematic view of a plant protection unmanned aerial vehicle according to an embodiment;
FIG. 2 is a schematic view of the spray system shown in FIG. 1;
fig. 3 is a schematic view of another spray system.
Wherein: 1. an unmanned aerial vehicle body; 2. a spraying system; 3. a liquid storage tank; 4. a support; 5. steering engine mounting seats; 6. steering engine; 7. a rocker arm mounting seat; 8. a rocker arm; 9. centrifuging the spray head; 10. a pressure nozzle; 11. a water pump; 12. a first pipeline; 13. and a second pipeline.
Detailed Description
In order to more clearly illustrate the general concepts of the present application, a detailed description is provided below by way of example in connection with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application 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 invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1-2, a plant protection unmanned aerial vehicle, including unmanned aerial vehicle body 1, in this scheme, plant protection unmanned aerial vehicle is rotor unmanned aerial vehicle, can be two rotors, also can be three rotors, four rotors, or many rotors. The bottom of unmanned aerial vehicle body 1 sets up liquid reserve tank 3, and unmanned aerial vehicle body 1 still is connected with at least one set of sprinkler system 2, in order to guarantee spraying effect and spraying efficiency, the quantity of sprinkler system 2 and the quantity one-to-one of rotor. However, the number of spraying systems 2 does not exceed 4 sets, considering the loading pressure of the unmanned aerial vehicle and the one-time spraying time. The spraying system 2 comprises a plurality of spray heads capable of spraying liquid medicine with different atomization degrees; each set of spraying systems 2 is in communication with a reservoir 3.
In this technical scheme, can spray the sprinkler system 2 of different atomization degree liquid medicine through setting up to satisfy the different grade crops to the atomizing demand of pesticide, the same grade crops to the atomizing demand of pesticide at different growth cycle, and the different crops of planting density to the atomizing demand of pesticide. According to the different atomizing demands of crops to the liquid medicine under multiple conditions, the spraying system 2 is adjusted to spray the liquid medicine with corresponding atomizing degree, so that the pertinence of the spraying of the medicine is ensured, the purpose is clear, the spraying efficiency is high, and meanwhile, the plant protection unmanned aerial vehicle is high in operation adaptability under different environments. One plant protection machine can solve the problem of the resultant force of the plurality of plant protection machines in the past, and the economic burden of enterprises or individuals is obviously reduced while the production cost is reduced.
In this scheme, the liquid storage tank 3 is funnel-shaped. The liquid outlet is located the bottom of funnel, and liquid medicine relies on gravity to flow to the liquid outlet, is favorable to abundant that liquid medicine used, prevents to remain. In addition, the central axis of the liquid tank 3 coincides with the central axis of the unmanned aerial vehicle body 1. Guarantee that liquid reserve tank 3 does not have the influence to unmanned aerial vehicle's horizontal focus, be favorable to the equilibrium of spraying and unmanned aerial vehicle body 1 flight's security, improve rotor unmanned aerial vehicle's flight speed, bearing capacity and duration simultaneously.
Specifically, unmanned aerial vehicle body 1 includes a plurality of rotor bars that outwards extend from its top, and the distal end top of rotor bar sets up the rotor, and the below of every rotor sets up one set of sprinkler system 2. Considering the flying speed, flying stability, carrying capacity and spraying efficiency of the unmanned aerial vehicle, the scheme selects a four-rotor unmanned aerial vehicle, and correspondingly, four sets of spraying systems 2 are arranged. The spraying system 2 is arranged below each rotor wing, so that the flight stability of the unmanned aerial vehicle is facilitated, the maximum spraying effect is guaranteed, after the spraying of the liquid medicine is realized, the spraying system is located in a downward washing flow field generated by the rotor wings of the unmanned aerial vehicle, the spraying range of the liquid medicine can be improved by means of acting force of the downward washing flow field, the spraying effect of the liquid medicine is enhanced, the dropping speed of the liquid medicine is improved, and the spraying efficiency is further improved.
The distal end of rotor pole sets up the support 4 of connecting sprinkler system 2, in this scheme, and support 4 cup joints the distal end of fixing at the rotor pole, and is located the rotor pole under, easy to assemble and dismantlement. The rotor sets up in support 4 top, and support 4 below is connected with relative support 4 pivoted rotary mechanism, and sprinkler system 2 is connected in rotary mechanism's free end, and rotary mechanism is connected with unmanned aerial vehicle's control system. Wherein, the included angle between the vertical center line of the rotating mechanism and the vertical center line of the support 4 can be 0 degrees, namely, the two are parallel or coincident; and may be set in a range of 0 DEG to 60 deg. Preferably, the vertical centre line of the rotating mechanism is parallel or coincident with the vertical centre line of the support 4, taking into account the maximisation of the spray width of the liquor and the minimum time for the liquor to fall to the crop. I.e. the rotating mechanism is vertically suspended at the bottom end of the support 4 and horizontally rotates along the vertical axis of the rotating mechanism. Correspondingly, the spraying system 2 changes the position of the spray head through rotation according to actual conditions, so that the spraying breadth is changed, and the working efficiency is improved.
Specifically, rotary mechanism includes at least a set of rotary unit of arranging along vertical direction, and every rotary unit of group includes steering wheel mount pad 5, sets up steering wheel 6, rocking arm mount pad 7 and the rocking arm 8 of setting on rocking arm mount pad 7 on steering wheel mount pad 5, is connected through the steering wheel mount pad 5 of next group and the rocking arm 8 free end fixed of last group between the adjacent rotary unit. Steering wheel mount pad 5 that is close to the rotor sets up in the bottom of support 4, and rocking arm mount pad 7 rotates with steering wheel 6 to be connected, and sprinkler system 2 sets up on keeping away from the rocking arm 8 of rotor, and steering wheel 6 is connected with unmanned aerial vehicle's control system. Considering the bearing capacity and the cruising ability of the unmanned aerial vehicle, in the scheme, the rotating mechanism comprises two groups of rotating units which are arranged along the vertical direction.
Because the spraying system 2 sprays pesticides to form an umbrella shape, when four sets of rotating mechanisms on the unmanned aerial vehicle synchronously rotate to the condition that the connecting lines of the two sets of rotating mechanisms which are opposite in cross are mutually perpendicular, the distance between the relative positions of the four sets of spraying systems 2 is minimum. If the distance S between the two sets of spraying systems 2 is equal to 2 times the radius R of the spraying area, the spraying area of the spraying system 2 generates the largest intersection at the central axis of the unmanned aerial vehicle, so that the amount of the liquid medicine obtained in unit area and unit time of the crops at the intersection is the largest, and meanwhile, the unmanned aerial vehicle completely covers the boundary value of the crops perpendicular to the unmanned aerial vehicle, which means that the dosage is the smallest at the moment. In connection with the above theoretical analysis, it is once again clear that the rotation mechanism comprises two sets of rotation units arranged in the vertical direction. According to the scheme, the spraying system 2 is arranged according to the requirements, so that the use of liquid medicine is saved, the range of covering crops with single medicine is utilized to the maximum extent, the use efficiency of the liquid medicine is improved, the maximization of the load is realized, the operation efficiency is improved, the missing spraying of crops can be avoided, the pesticide residue of agricultural products can be reduced, and the ideal control effect is achieved.
Specifically, the spraying system 2 includes a centrifugal spray head 9 and a pressure spray head 10; the centrifugal spray head 9 and the pressure spray head 10 are arranged side by side on the rocker arm 8 remote from the rotor. The centrifugal spray head 9 has good atomization effect but poor penetrating power, and can spray crops with low density and high requirement on the atomization effect. The pressure nozzle 10 has poor atomization effect but good penetrating power, and can spray crops with high density and low atomization effect. In this embodiment, the centrifugal nozzle 9 and the pressure nozzle 10 are conventional, and will not be described here.
The bottom of the liquid storage tank 3 is provided with a water pump 11 communicated with the liquid storage tank 3, the water pump 11 is communicated with a pressure nozzle 10 through a first pipeline 12, and a first electromagnetic valve is arranged in the first pipeline 12. The water pump 11 is communicated with the centrifugal nozzle 9 through a second pipeline 13, and a second electromagnetic valve is arranged in the second pipeline 13. The water pump 11, the first electromagnetic valve, the second electromagnetic valve and the centrifugal spray nozzle 9 are all connected with a control system of the unmanned aerial vehicle. By controlling the opening and closing of the first electromagnetic valve or the second electromagnetic valve, the conduction of the first pipeline 12 or the second pipeline 13 is realized, and then the independent work of the pressure nozzle 10 or the centrifugal nozzle 9 is completed.
In addition, a water pump 11 is provided at the center of the bottom of the tank 3. Guarantee that water pump 11 does not have the influence to unmanned aerial vehicle's horizontal focus, be favorable to the equilibrium of spraying and unmanned aerial vehicle body 1 flight's security, improve rotor unmanned aerial vehicle's flight speed, bearing capacity and duration simultaneously.
The working principle of the device is as follows: the steering engine 6 provides rotary power for the rocker arm 8, so that the rocker arm 8 can rotate by 360 degrees, the purpose of changing the position of the spray head is achieved, and the pesticide spraying area can be increased. When the distance between 4 sets of spray heads is reduced, the amount of pesticide obtained by the unit area of the crops is increased, and at the moment, the crops with large pesticide demand can be sprayed; when the distance between the 4 sets of spray heads is increased, the amount of pesticide obtained by the unit area of the crops is reduced, and at the moment, the crops with small pesticide demand can be sprayed.
The synchronous movement of the four sets of centrifugal spray heads 9 and the pressure spray heads 10 and the synchronization of the movement angles can be realized through a control system. The independent work of the centrifugal spray head 9 and the pressure spray head 10 can be completed by combining the specific conditions of crops through the control system, so that the work conversion of the centrifugal spray head 9 and the pressure spray head 10 is realized.
It will be appreciated that when there is only one set of rotary units, as shown in fig. 3, the coverage area of the spraying system 2 is significantly reduced, the time required to spray the same area of crop is significantly increased, the spraying efficiency is significantly reduced and the production cost is significantly increased compared to two sets of rotary units.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (4)
1. The plant protection unmanned aerial vehicle comprises an unmanned aerial vehicle body, wherein a liquid storage tank is arranged at the bottom of the unmanned aerial vehicle body, and is characterized in that the unmanned aerial vehicle body is also connected with at least one set of spraying system, and the spraying system comprises a plurality of spray heads capable of spraying liquid medicines with different atomization degrees; each set of the spraying system is communicated with the liquid storage tank;
the unmanned aerial vehicle body comprises a plurality of rotor shafts extending outwards from the top of the unmanned aerial vehicle body, wherein a rotor is arranged above the distal end of each rotor shaft, and a set of spraying system is arranged below each rotor;
the remote end of the rotor wing rod is provided with a support which is connected with the spraying system, the rotor wing is arranged above the support, a rotating mechanism which can rotate relative to the support is connected below the support, the spraying system is connected with the free end of the rotating mechanism, and the rotating mechanism is connected with a control system of the unmanned aerial vehicle;
the rotating mechanism comprises at least one group of rotating units arranged along the vertical direction, each group of rotating units comprises a steering engine mounting seat, a steering engine arranged on the steering engine mounting seat, a rocker arm mounting seat and a rocker arm arranged on the rocker arm mounting seat, and adjacent rotating units are fixedly connected with the free ends of the rocker arms of the previous group through the steering engine mounting seat of the next group;
the steering engine mounting seat close to the rotor wing is arranged at the bottom of the support, the rocker arm mounting seat is rotationally connected with the steering engine, and the spraying system is arranged on a rocker arm far away from the rotor wing; the steering engine is connected with a control system of the unmanned aerial vehicle;
the rotating mechanism comprises two groups of rotating units which are arranged along the vertical direction;
the spraying system comprises a centrifugal spray head and a pressure spray head; the centrifugal spray head and the pressure spray head are arranged on a rocker arm far away from the rotor wing side by side;
the liquid storage tank is funnel-shaped.
2. The plant protection unmanned aerial vehicle according to claim 1, wherein a water pump communicated with the liquid storage tank is arranged at the bottom of the liquid storage tank, the water pump is communicated with the pressure nozzle through a first pipeline, and a first electromagnetic valve is arranged in the first pipeline; the water pump is communicated with the centrifugal spray head through a second pipeline, and a second electromagnetic valve is arranged in the second pipeline;
the water pump, the first electromagnetic valve, the second electromagnetic valve and the centrifugal spray head are all connected with the control system of the unmanned aerial vehicle.
3. The plant protection unmanned aerial vehicle of claim 2, wherein the water pump is disposed at a central location of the bottom of the tank.
4. A plant protection unmanned aerial vehicle according to claim 3, wherein the central axis of the liquid storage tank coincides with the central axis of the unmanned aerial vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100738.8A CN109677615B (en) | 2019-01-31 | 2019-01-31 | Plant protection unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910100738.8A CN109677615B (en) | 2019-01-31 | 2019-01-31 | Plant protection unmanned aerial vehicle |
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| CN109677615A CN109677615A (en) | 2019-04-26 |
| CN109677615B true CN109677615B (en) | 2024-03-19 |
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| CN112772614B (en) * | 2020-12-31 | 2022-11-08 | 广州极飞科技股份有限公司 | Spraying method and device for plant protection equipment, plant protection equipment and processor |
| CN113184192A (en) * | 2021-04-12 | 2021-07-30 | 苏州极目机器人科技有限公司 | Spraying method for aircraft |
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