CN111066758A - Many rotor unmanned aerial vehicle with centrifugal nozzle - Google Patents
Many rotor unmanned aerial vehicle with centrifugal nozzle Download PDFInfo
- Publication number
- CN111066758A CN111066758A CN201911257336.5A CN201911257336A CN111066758A CN 111066758 A CN111066758 A CN 111066758A CN 201911257336 A CN201911257336 A CN 201911257336A CN 111066758 A CN111066758 A CN 111066758A
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- unmanned aerial
- aerial vehicle
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- fixing
- air guide
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- 239000007921 spray Substances 0.000 claims abstract description 76
- 238000001802 infusion Methods 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 36
- 238000005507 spraying Methods 0.000 abstract description 33
- 230000000694 effects Effects 0.000 abstract description 15
- 238000000889 atomisation Methods 0.000 description 7
- 239000000575 pesticide Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000011344 liquid material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Remote Sensing (AREA)
- Insects & Arthropods (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention relates to the technical field of agricultural unmanned aerial vehicles, and provides a multi-rotor unmanned aerial vehicle with a centrifugal spray head, which comprises a vehicle body with a container and a plurality of hollow wing arms connected with the vehicle body, wherein each wing arm is provided with a driving seat, and a propeller is arranged on each driving seat; the wing arm is also provided with a spray head, the spray head comprises a flow guide cover, an impeller and a motor, the motor is fixed in the flow guide cover, the motor is provided with a driving shaft, and the driving shaft extends from the motor to the outside of the flow guide cover; the impeller is arranged outside the cover opening of the air guide cover and is connected with a driving shaft of the motor; an infusion tube is arranged in the wing arm, one end of the infusion tube is connected with a container on the machine body, and the other end of the infusion tube is connected with the air guide sleeve. The invention improves the structure of the spray head of the unmanned aerial vehicle, effectively atomizes the spray liquid, increases the strength of the spray liquid, ensures that the sprayed liquid can penetrate through the interior of crops, and effectively improves the spraying effect.
Description
Technical Field
The invention relates to the technical field of agricultural unmanned aerial vehicles, in particular to a multi-rotor unmanned aerial vehicle with a centrifugal spray head.
Background
A drone is an unmanned aircraft that is operated by a radio remote control device and a self-contained program control device. Along with the change of science and technology, the unmanned aerial vehicle technology is more and more mature, and the application of unmanned aerial vehicle gradually walks into the public field of vision, and the application of unmanned aerial vehicle in civilian aspect is also more and more extensive, especially in the planting industry, does operations such as pesticide spraying or fertilization to crops through controlling unmanned aerial vehicle, can replace the staff operation effectively, saves operating time and human cost, improves the productivity effect.
Agricultural unmanned aerial vehicle generally falls into two kinds at present on the market, including the unmanned aerial vehicle that adopts the stationary vane and the unmanned aerial vehicle that adopts many rotors. To the unmanned aerial vehicle of fixed wing, because need certain distance and space could take off, and just can hold up by the air at the in-process of flight and realize high promotion by corresponding speed, therefore the unmanned aerial vehicle of fixed wing has that flight speed is fast, advantage that carrying capacity is strong, be applicable to large-scale farmland more, if be used for small-size farmland then receive space restriction and cost higher, and because the flight characteristic of fixed wing unmanned aerial vehicle, lead to fixed wing unmanned aerial vehicle to carry out indiscriminate spraying, can not do the key to specific area and spray.
To the unmanned aerial vehicle of many rotors, similar helicopter type unmanned aerial vehicle that has a plurality of screws promptly, generally set up the shower nozzle in the below of screw, be equipped with the impeller of connecting screw driving motor in the shower nozzle to carry pesticide or fertilizer in the shower nozzle through conduit, let the impeller break up and realize atomizing, then do the hydrojet output again. The flight performance of the multi-rotor unmanned aerial vehicle is utilized, so that the spraying to a specific area or the spraying suspended on crops can be realized.
However, in practical application, the spraying of the agricultural product cannot be only on the surface of the agricultural product, and particularly, in the application of spraying the pesticide, the agricultural product needs to be deeply sprayed into the agricultural product to completely eliminate the pests on the agricultural product. Compared with the spraying effect of two unmanned aerial vehicles in the prior art, the unmanned aerial vehicle with the fixed wings can not hover for spraying, but has a certain distance to serve as impact before flying near crops, so that the sprayed liquid material has impact force, can effectively go deep into the inside of the crops, and meets the spraying requirement. However, for the unmanned aerial vehicle with multiple rotors, the motor of the propeller mainly acts on the power provided for the propeller, and the impeller in the nozzle only provides power output as linkage, so that the spraying liquid can be scattered to achieve the atomization effect under the rotation of the impeller, but sufficient power is difficult to provide to output the spraying liquid, the strength of the spraying liquid is weak, the spraying liquid cannot penetrate through the inside of crops, and the spraying requirement is difficult to meet.
Therefore, the unmanned aerial vehicle in the prior art can not meet the requirements of hovering spraying and liquid spraying strength at the same time, and is a research problem of the current agricultural unmanned aerial vehicle manufacturers.
Disclosure of Invention
The invention aims to provide a multi-rotor unmanned aerial vehicle with a centrifugal nozzle, aiming at the problem that the liquid sprayed by the multi-rotor unmanned aerial vehicle in the prior art is weak and difficult to penetrate through the interior of crops, the nozzle structure of the unmanned aerial vehicle is improved, the strength of the sprayed liquid can be increased while the sprayed liquid is effectively atomized, the sprayed liquid can penetrate through the interior of the crops, and the spraying effect is effectively improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
a multi-rotor unmanned aerial vehicle with a centrifugal nozzle comprises a body with a container and a plurality of hollow wing arms connected with the body, wherein each wing arm is provided with a driving seat, and a propeller is arranged on each driving seat; the wing arm is also provided with a spray nozzle, the spray nozzle comprises a flow guide cover, an impeller and a motor, the motor is fixed in the flow guide cover, the motor is provided with a driving shaft, and the driving shaft extends from the motor to the outside of the flow guide cover; the impeller is arranged outside the cover opening of the air guide cover and is connected with a driving shaft of the motor; an infusion tube is arranged in the wing arm, one end of the infusion tube is connected with a container on the machine body, and the other end of the infusion tube is connected with the air guide sleeve.
Compared with the prior art, the multi-rotor unmanned aerial vehicle with the centrifugal spray heads has the advantages that the multi-rotor unmanned aerial vehicle with the centrifugal spray heads adopts the propellers as the flight driving, can bear sufficient sprayed pesticide or fertilizer, effectively realizes hovering flight by utilizing the flight performance of the multi-rotor unmanned aerial vehicle, and can perform hovering spraying on a specific area or specific crops. Moreover, the multi-rotor unmanned aerial vehicle is provided with the centrifugal spray head, so that sprayed liquid materials are scattered under the rotation of the impeller to realize atomization, and the effect of uniform atomization is achieved.
The unmanned aerial vehicle has the following defects that firstly, the upper output shaft and the lower output shaft of the double-head motor are respectively connected with the propeller and the impeller of the sprayer and provide power, the power of the double-head motor has certain linkage, and the rotating mode is limited, so that the power output to the impeller of the sprayer is limited, and the spraying strength is low; and secondly, in order to save space and better connect with the double-head motor, the impeller is arranged in the shell of the driving seat, so that the size of the impeller is limited, the power output by the rotation of the impeller is restricted, and effective spraying power cannot be provided.
In view of the above-mentioned drawbacks of the prior art, in the centrifugal nozzle of the present invention, on one hand, the independent motor is disposed on the nozzle to output power to the impeller, and a waterproof and corrosion-resistant driving motor is preferably used to effectively drive the impeller to rotate at high speed to output atomized spray. And the mode and the output power of the motor driving the impeller to rotate are not limited, the impeller can be specially driven to rotate, the output power of the impeller is effectively enhanced, and the strength of the liquid spraying is further improved.
On the other hand, as the spray head is arranged independently, the spray head can be arranged at any position of the machine body according to the installation requirement of the machine body, and the applicability of the spray head is effectively improved. And the impeller of the spray head is arranged outside the air guide sleeve, the size of the impeller is not limited, the impeller with a larger model can be replaced or adopted according to the strength requirement of the sprayed liquid, the output power is effectively improved, the strength of the sprayed liquid is further improved, the sprayed liquid has effective impact force to penetrate through crops, the application of spraying pesticides is particularly facilitated, and the spraying effect is effectively improved.
In addition, the unmanned aerial vehicle with multiple rotors can realize hovering and spraying on crops, so that the unmanned aerial vehicle is easy to scrape and rub the crops when flying to the crops, and particularly the infusion pipe is easy to cut to cause the problem of liquid leakage. In order to solve the technical problem, the wing arm of the unmanned aerial vehicle is a hollow through pipe connected between the machine body and the spray head, and the liquid conveying pipe is arranged in the wing arm, so that the liquid conveying pipe can be effectively protected, the liquid leakage caused by the fact that the liquid conveying pipe is exposed on the machine body and easily cut by crops is avoided, and the performance of the machine body is effectively improved.
The structure of the spray head is further improved, and the flow guide cover is a pipe body with an upper opening and a lower opening and comprises an upper cover opening and a lower cover opening; a fixing frame for fixing the motor is arranged in the air guide sleeve, and an installation groove is formed in the center of the fixing frame; the motor is arranged in the mounting groove of the fixing frame, an opening is formed in the bottom of the mounting groove, a driving shaft of the motor penetrates out of the opening of the mounting groove, and the driving shaft extends out of the outer portion of the air guide sleeve from the lower cover opening of the air guide sleeve. The motor is arranged at the center of the fixing frame of the air guide sleeve, so that the concentricity of the connected impeller is improved, and the stability of driving the impeller to rotate is effectively improved. Moreover, the motor can be effectively fixed and wrapped through the mounting groove in the fixing frame, so that the sprayed liquid is prevented from directly permeating into the motor, the fixing effect is achieved, and the waterproof effect can be achieved.
Further, the impeller is located the lower cover mouth of kuppe is outside, the impeller includes the carousel and encircles a plurality of blades that the carousel periphery set up, the carousel with the drive shaft of motor is connected, just the carousel lid closes the mounting groove opening of mount to the infiltration of separation foreign object avoids the impeller rotation to be blocked and dies, ensures motor drive impeller rotatory smooth and easy nature and stability effectively.
The connecting structure of the spray head is further improved, a connecting frame connected with the wing arm is arranged on the flow guide cover, and a connecting hole is formed in the connecting frame; the wing arm is provided with a fixing ring, and the fixing ring is provided with a screw hole aligned with the connecting hole. The spray head is arranged independently, so that a connecting structure is arranged between the spray head and the machine body. Regarding the connection structure of shower nozzle, set up the link on the kuppe of shower nozzle, set up solid fixed ring on the wing arm of organism, the link through the shower nozzle is counterpointed the cooperation with the screw with solid fixed ring's on the wing arm connecting hole to it is fixed to install the fastener cross-under additional, thereby can fix the optional position on the wing arm with the shower nozzle according to the practical application demand, improves the flexibility of shower nozzle installation effectively.
Furthermore, the fixing ring comprises an upper retaining ring and a lower retaining ring, the upper retaining ring and the lower retaining ring are respectively provided with a looping which is aligned with each other, and the upper retaining ring and the lower retaining ring are spliced with each other and are sleeved on the wing arm through the looping. In practical application, the upper retaining ring and the lower retaining ring of the fixing ring can be connected in a penetrating manner by additionally arranging a fastener, so that the upper retaining ring and the lower retaining ring can be spliced and fixed on the wing arm. For the installation position adjustment of the spray head, the position of the fixed ring sleeved on the wing arm can be adjusted, so that the installation position of the spray head is adjusted, and the adjustment structure of the spray head is effectively simplified.
Furthermore, a first connecting joint is arranged on the driving seat, and the wing arm is connected with the first connecting joint and inserted into the driving seat from the first connecting joint; the driving mechanism is characterized in that a fixing plate is arranged in the driving seat, a fixing groove embedded in the wing arm is formed in the fixing plate, a fixing hole is formed in the fixing plate, and the fixing hole is aligned with a screw hole in the fixing ring. In order to make the overall structure of organism more steady, can preferably install the shower nozzle in the below of screw, the wing arm inserts in the drive seat through the first connector of drive seat, be equipped with the fixed plate of scarf joint wing arm in the drive seat, screw through solid fixed ring is fixed with the fixed orifices position fit of fixed plate, it is fixed to install the fastener cross-under additional, can preferably adopt solid fixed ring's lower buckle to be connected fixedly with the fixed plate, so that shower nozzle accessible link is connected with solid fixed ring, then fixed plate through solid fixed ring in with the drive seat is fixed again, thereby install the below of screw with the shower nozzle, so that improve the stability of organism.
The structure of the connecting frame of the spray head is further improved, the connecting frame of the spray head is also provided with a first connecting pipe, a second connecting pipe and a first connecting plate, the first connecting plate is provided with the connecting hole, and the first connecting pipe is connected between the first connecting plate and the connecting frame; the second connecting pipe is connected with the infusion pipe and inserted into the air guide sleeve from the upper cover opening of the air guide sleeve. A first connecting pipe and a second connecting pipe are arranged on a connecting frame of the spray head, and the first connecting pipe is used for connecting and supporting the connecting frame and the first connecting plate; the second connecting pipe is used for connecting the infusion pipe and extends to the inside of the flow guide cover, so that liquid materials are prevented from being wasted due to the fact that liquid spray conveyed by the infusion pipe splashes out of the outside of the flow guide cover.
The structure of the connecting frame of the spray head is improved, the connecting frame of the spray head is also provided with a connecting shaft and a second connecting plate, the second connecting plate is provided with the connecting hole, and the connecting shaft is connected between the second connecting plate and the connecting frame; the connecting shaft and the mounting groove on the fixing frame are arranged in an aligned mode. The structure of this link is when guaranteeing joint strength, can improve the concentricity between the subassembly again, lets the operation of shower nozzle more stable.
The infusion connection structure of the spray head is further improved, an annular guide pipe is further arranged in the air guide sleeve, and the guide pipe is fixed on the fixing frame; the honeycomb duct is provided with a second connector and a plurality of water spray holes, and the second connector is connected with the infusion tube. The guide pipe with a plurality of water spray holes is arranged in the guide cover, so that the spray liquid can be effectively dispersed, and the atomization effect is improved.
The other improvement is made on the transfusion connecting structure of the spray head, a guide ring for outputting the spray liquid is arranged on the periphery of the fixing frame of the guide cover, and a plurality of water outlet holes are formed in the guide ring; the periphery of the air guide sleeve is provided with a third connector connected with the infusion tube, the third connector is communicated to the inside of the air guide sleeve, and the air guide ring is provided with a through hole communicated with the third connector. The periphery of the fixing frame is provided with the flow guide ring, so that the occupied space in the flow guide cover can be effectively saved. And the infusion mode is adjusted to the periphery of the air guide sleeve, and the infusion is input into the air guide sleeve from a third connector arranged on the periphery of the air guide sleeve, so that the connection through a connecting frame above the air guide sleeve is avoided, the connecting structure of the spray head and the infusion tube is effectively simplified, and the applicability of the spray head is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a perspective view of an unmanned aerial vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first embodiment of a showerhead and a wing arm assembly according to the present invention;
FIG. 3 is an exploded view of a first spray head and wing arm assembly according to an embodiment of the present invention;
FIG. 4 is an exploded view of a retaining ring according to an embodiment of the present invention;
FIG. 5 is a perspective view of a first showerhead provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of a second embodiment of the present invention;
FIG. 7 is a perspective view of a propeller drive base provided in accordance with an embodiment of the present invention;
FIG. 8 is an exploded view of a second spray head and wing arm assembly in accordance with an embodiment of the present invention;
FIG. 9 is an exploded view of a second showerhead in accordance with an embodiment of the present invention;
FIG. 10 is a perspective view of a second showerhead provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic view of a third embodiment of the present invention;
FIG. 12 is an exploded view of a third alternative spray head and wing arm assembly in accordance with embodiments of the present invention;
FIG. 13 is a perspective view of a third showerhead provided in accordance with an embodiment of the present invention;
fig. 14 is an internal structure view of a third showerhead according to an embodiment of the present invention.
Reference numerals: 100. a body; 101. a container;
1. a wing arm; 11. a transfusion tube;
2. a propeller; 21. a driving seat; 211. a first connector; 212. a fixing plate; 213. fixing grooves; 214. a fixing hole;
3. a spray head;
4. a pod; 41. an upper cover opening; 42. a lower cover opening; 43. a fixed mount; 431. mounting grooves; 44. a flow guide pipe; 441. a second connector; 442. a water spray hole; 45. a flow guide ring; 451. a water outlet hole; 452. a through hole; 46. a third connector;
5. an impeller; 51. a turntable; 52. a blade;
6. a motor; 61. a drive shaft;
7. a connecting frame; 70. connecting holes; 71. a first connecting pipe; 72. a second connecting pipe; 73. a first connecting plate; 74. a connecting shaft; 75. a second connecting plate;
8. a fixing ring; 80. a screw hole; 81. an upper retaining ring; 82. a lower retaining ring; 83. looping;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, a multi-rotor unmanned aerial vehicle with centrifugal nozzles according to an embodiment of the present invention includes a body 100 having a container 101, and a plurality of hollow wing arms 1 connected to the body 100, wherein each wing arm 1 is provided with a propeller 2 and a driving seat 21 for the propeller 2, and the driving seat 21 is preferably provided with a driving motor for outputting power to the propeller 2. The wing arm 1 is further provided with a spray head 3, the spray head 3 comprises a flow guide cover 4, an impeller 5 and a motor 6, the motor 6 is fixed in the flow guide cover 4, the motor 6 is provided with a driving shaft 61, and the driving shaft 61 extends from the motor 6 to the outside of the flow guide cover 4; the impeller 5 is arranged outside the cover opening of the air guide cover 4 and is connected with a driving shaft 61 of the motor 6. An infusion tube 11 is arranged in the wing arm 1, one end of the infusion tube 11 is connected with a container 101 on the machine body 100, and the other end of the infusion tube 11 is connected with the air guide sleeve 4.
According to the multi-rotor unmanned aerial vehicle, the propellers 2 are adopted as the flight-driven multi-rotor unmanned aerial vehicle, so that sufficient pesticide or fertilizer can be sprayed, the flight performance of the multi-rotor unmanned aerial vehicle is utilized, hovering flight is effectively achieved, and hovering spraying can be performed in a specific area or on specific crops. Moreover, the multi-rotor unmanned aerial vehicle is provided with the centrifugal spray head 3, so that sprayed liquid materials are scattered under the rotation of the impeller 5 to realize atomization, and the effect of uniform atomization is achieved.
Aiming at the technical problem of insufficient spraying strength of the unmanned aerial vehicle in the prior art, on one hand, the centrifugal sprayer 3 is provided with the independent motor 6 to output power to the impeller 5, and the waterproof and anticorrosive driving motor 6 can be preferably adopted, so that the impeller 5 can be effectively driven to rotate at a high speed, and atomized spraying liquid is output. In addition, the mode and the output power of the motor 6 for driving the impeller 5 to rotate are not limited, and the impeller 5 can be specially driven to rotate, so that the output power of the impeller 5 is effectively enhanced, and the strength of the liquid spraying is improved.
On the other hand, because the spray head 3 is arranged independently, the spray head 3 can be arranged at any position of the machine body according to the installation requirement of the machine body, and the applicability of the spray head 3 is effectively improved. Moreover, the impeller 5 of the spray head 3 is arranged outside the air guide sleeve 4, the size of the impeller 5 is not limited, the impeller 5 with a larger size can be replaced or adopted according to the strength requirement of the sprayed liquid, the output power is effectively improved, the strength of the sprayed liquid is further improved, the sprayed liquid has effective impact force to penetrate through crops, the application of pesticide spraying is particularly facilitated, and the spraying effect is effectively improved.
In addition, the unmanned aerial vehicle is easy to be scratched by crops when hovering over the crops for spraying, and particularly the liquid leakage problem of the liquid conveying pipe 11 is easy to be cut. The wing arm 1 of the unmanned aerial vehicle is preferably a hollow through pipe connected between the body 100 and the spray head 3, the infusion pipe 11 is arranged in the wing arm 1, the infusion pipe 11 can be effectively protected, the infusion pipe 11 is prevented from being exposed on the body and easily being cut by crops to cause liquid leakage, and the performance of the body is effectively improved.
The structure of the nozzle 3 is optimized, as shown in fig. 3, the air guide sleeve 4 is a pipe body with an upper opening and a lower opening, and comprises an upper sleeve opening 41 and a lower sleeve opening 42; a fixing frame 43 for fixing the motor 6 is arranged in the air guide sleeve 4, and an installation groove 431 is formed in the center of the fixing frame 43; the motor 6 is arranged in the mounting groove 431 of the fixing frame 43, an opening is formed in the bottom of the mounting groove 431, and the driving shaft 61 of the motor 6 penetrates out of the opening of the mounting groove 431 and extends out of the air guide sleeve 4 from the lower cover opening 42 of the air guide sleeve 4. The motor 6 is arranged at the center of the fixing frame 43 of the air guide sleeve 4, so that the concentricity of the connecting impeller 5 is improved, and the stability of driving the impeller 5 to rotate is effectively improved. Moreover, the motor 6 can be effectively fixed and wrapped through the mounting groove 431 in the fixing frame 43, so that the spray liquid is prevented from directly permeating into the motor 6, and the fixing effect and the waterproof effect can be achieved.
As shown in fig. 3, the impeller 5 is disposed outside the lower cover opening 42 of the nacelle 4, the impeller 5 includes a rotary plate 51 and a plurality of blades 52 disposed around the periphery of the rotary plate 51, the rotary plate 51 is connected to a driving shaft 61 of the motor 6, and the rotary plate 51 covers the opening of the mounting groove 431 of the fixing frame 43, so as to block penetration of foreign objects, prevent the impeller 5 from being locked by rotation, and effectively ensure smoothness and stability of the rotation of the impeller 5 driven by the motor 6.
Since the spray head 3 of the present invention is independently provided, a connection structure is provided for the spray head 3 and the body. As shown in fig. 2 to 5, a connecting frame 7 connected with the wing arm 1 is arranged on the nacelle 4, and the connecting frame 7 is provided with a connecting hole 70; be equipped with solid fixed ring 8 on the pterygoid arm 1, gu be equipped with on the fixed ring 8 with the screw 80 of connecting hole 70 counterpoint to it is fixed like cross-under such as set screw to install the fastener additional, thereby can fix the optional position on the pterygoid arm 1 with shower nozzle 3 according to practical application demand, improve the flexibility of shower nozzle 3 installation effectively.
As shown in fig. 4, the fixing ring 8 includes an upper retaining ring 81 and a lower retaining ring 82, the upper retaining ring 81 and the lower retaining ring 82 are respectively provided with a socket 83 aligned with each other, and the upper retaining ring 81 and the lower retaining ring 82 are spliced with each other and sleeved on the wing arm 1 through the socket 83. In practical application, the upper retaining ring 81 and the lower retaining ring 82 of the fixing ring 8 can be inserted and connected by installing a fastener such as a fixing screw, so that the upper retaining ring 81 and the lower retaining ring 82 can be spliced and fixed on the wing arm 1. For the adjustment of the installation position of the spray head 3, the position of the spray head 3 can be adjusted by adjusting the position of the fixed ring 8 sleeved on the wing arm 1, so that the installation position of the spray head 3 is adjusted, and the adjustment structure of the spray head 3 is effectively simplified.
In order to make the whole structure of the machine body more stable, it is preferable to install the spray head 3 below the propeller 2, as shown in fig. 6 to 8, a first connector 211 is provided on the driving seat 21, and the wing arm 1 is connected with the first connector 211 and inserted into the driving seat 21 from the first connector 211; a fixing plate 212 is arranged in the driving seat 21, a fixing groove 213 which is embedded in the wing arm 1 is arranged on the fixing plate 212, a fixing hole 214 is arranged on the fixing plate 212, and the fixing hole 214 is aligned with the screw hole 80 on the fixing ring 8. The nozzle 3 is connected with the fixing ring 8 through the connecting frame 7, and then fixed with the fixing plate 212 in the driving seat 21 through the fixing ring 8, specifically, the nozzle can be aligned with the fixing hole 214 of the fixing plate 212 through the screw hole 80 of the fixing ring 8, and is additionally provided with a fastener such as a fixing screw for penetrating and fixing, and preferably, the lower retaining ring 82 of the fixing ring 8 is connected and fixed with the fixing plate 212, so that the nozzle 3 is installed below the propeller 2, and the stability of the machine body is improved.
The structure of the connection frame 7 of the spray head 3 includes, but is not limited to, the following two types:
in the first connection structure, as shown in fig. 5, a first connection pipe 71, a second connection pipe 72 and a first connection plate 73 are further disposed on the connection frame 7 of the spray head 3, the first connection plate 73 is provided with the connection hole 70, and the first connection pipe 71 is connected between the first connection plate 73 and the connection frame 7; the second connection pipe 72 is connected to the infusion tube 11 and inserted into the pod 4 through the upper opening 41 of the pod 4. Wherein, the first connecting pipe 71 is used for connecting and supporting the connecting frame 7 and the first connecting plate 73; the second connecting pipe 72 is used for connecting the infusion tube 11 and extends to the inside of the air guide sleeve 4, so that liquid spray delivered by the infusion tube 11 is prevented from splashing outside the air guide sleeve 4 to cause waste of liquid materials.
In the second connection structure, as shown in fig. 9 to 10, a connection shaft 74 and a second connection plate 75 are further disposed on the connection frame 7 of the nozzle 3, the connection hole 70 is disposed on the second connection plate 75, and the connection shaft 74 is connected between the second connection plate 75 and the connection frame 7; the connecting shaft 74 is aligned with the mounting groove 431 of the fixing frame 43. The concentricity between the components can be improved while the connection strength is ensured, and the operation of the spray head 3 is more stable.
The piping structure in the head 3 includes two types as follows:
as shown in fig. 9 to 10, an annular flow guide tube 44 is further disposed in the air guide sleeve 4, and the flow guide tube 44 is fixed on the fixing frame 43; the guide pipe 44 is provided with a second connector 441 and a plurality of water spraying holes 442, and the second connector 441 is connected with the infusion tube 11. The guide duct 44 having a plurality of water spray holes 442 is provided in the guide housing 4, so that the spray can be effectively dispersed, thereby improving the atomization effect.
In another pipeline structure in the spray head 3, as shown in fig. 11 to 14, a guide ring 45 for outputting the spray liquid is disposed on the periphery of the fixing frame 43 of the air guide sleeve 4, and a plurality of water outlet holes 451 are disposed on the guide ring 45; the periphery of kuppe 4 is equipped with the third connector 46 that is connected with transfer line 11, third connector 46 intercommunication to the inside of kuppe 4, be equipped with on the water conservancy diversion ring 45 with the through-hole 452 of third connector 46 intercommunication. The structure has the advantages that the guide ring 45 is arranged on the periphery of the fixing frame 43, so that the occupied space in the guide cover 4 can be effectively saved. Moreover, the infusion mode is adjusted to the periphery of the air guide sleeve 4, and the infusion is input into the air guide sleeve 4 from the third connector 46 arranged on the periphery of the air guide sleeve 4, so that the connection through the connecting frame 7 above the air guide sleeve 4 is avoided, the connecting structure of the spray head 3 and the infusion tube 11 is effectively simplified, and the applicability of the spray head 3 is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A multi-rotor unmanned aerial vehicle with a centrifugal nozzle is characterized by comprising a body with a container and a plurality of hollow wing arms connected with the body, wherein each wing arm is provided with a driving seat, and each driving seat is provided with a propeller; the wing arm is also provided with a spray nozzle, the spray nozzle comprises a flow guide cover, an impeller and a motor, the motor is fixed in the flow guide cover, the motor is provided with a driving shaft, and the driving shaft extends from the motor to the outside of the flow guide cover; the impeller is arranged outside the cover opening of the air guide cover and is connected with a driving shaft of the motor; an infusion tube is arranged in the wing arm, one end of the infusion tube is connected with a container on the machine body, and the other end of the infusion tube is connected with the air guide sleeve.
2. The multi-rotor unmanned aerial vehicle with centrifugal jets of claim 1, wherein the air guide shroud is an upper and lower open tubular body comprising an upper shroud port and a lower shroud port; a fixing frame for fixing the motor is arranged in the air guide sleeve, and an installation groove is formed in the center of the fixing frame; the motor is arranged in the mounting groove of the fixing frame, an opening is formed in the bottom of the mounting groove, a driving shaft of the motor penetrates out of the opening of the mounting groove, and the driving shaft extends out of the outer portion of the air guide sleeve from the lower cover opening of the air guide sleeve.
3. The multi-rotor unmanned aerial vehicle with a centrifugal nozzle as recited in claim 2, wherein the impeller is disposed outside a lower shroud opening of the spinner, the impeller includes a rotor disk and a plurality of blades disposed around an outer periphery of the rotor disk, the rotor disk is coupled to a drive shaft of the motor, and the rotor disk covers a mounting slot opening of the mounting bracket.
4. The multi-rotor unmanned aerial vehicle with a centrifugal nozzle of claim 2, wherein the fairwater has a connection frame connected to the wing arm, the connection frame having a connection hole; the wing arm is provided with a fixing ring, and the fixing ring is provided with a screw hole aligned with the connecting hole.
5. The multi-rotor unmanned aerial vehicle with centrifugal jets of claim 4, wherein the retaining ring comprises an upper retaining ring and a lower retaining ring, the upper retaining ring and the lower retaining ring are respectively provided with aligned openings, and the upper retaining ring and the lower retaining ring are spliced with each other and sleeved on the wing arm through the openings.
6. The multi-rotor unmanned aerial vehicle with centrifugal spray heads of claim 4, wherein the drive base is provided with a first connector, and the wing arm is connected with the first connector and inserted into the drive base from the first connector; the driving mechanism is characterized in that a fixing plate is arranged in the driving seat, a fixing groove embedded in the wing arm is formed in the fixing plate, a fixing hole is formed in the fixing plate, and the fixing hole is aligned with a screw hole in the fixing ring.
7. The multi-rotor unmanned aerial vehicle with a centrifugal nozzle as recited in claim 4, wherein the nozzle has a connection frame further comprising a first connection tube, a second connection tube, and a first connection plate, wherein the first connection plate comprises the connection hole, and wherein the first connection tube is connected between the first connection plate and the connection frame; the second connecting pipe is connected with the infusion pipe and inserted into the air guide sleeve from the upper cover opening of the air guide sleeve.
8. The multi-rotor unmanned aerial vehicle with a centrifugal nozzle of claim 4, wherein a connecting shaft and a second connecting plate are further arranged on the connecting frame of the nozzle, the second connecting plate is provided with the connecting hole, and the connecting shaft is connected between the second connecting plate and the connecting frame; the connecting shaft and the mounting groove on the fixing frame are arranged in an aligned mode.
9. The multi-rotor unmanned aerial vehicle with centrifugal jets of claim 2, further comprising an annular flow guide tube disposed within the pod, the flow guide tube secured to the mount; the honeycomb duct is provided with a second connector and a plurality of water spray holes, and the second connector is connected with the infusion tube.
10. The multi-rotor unmanned aerial vehicle with centrifugal nozzles of claim 2, wherein a deflector ring for outputting the spray is disposed on the periphery of the fixing frame of the deflector cover, and a plurality of water outlet holes are disposed on the deflector ring; the periphery of the air guide sleeve is provided with a third connector connected with the infusion tube, the third connector is communicated to the inside of the air guide sleeve, and the air guide ring is provided with a through hole communicated with the third connector.
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| CN201911257336.5A CN111066758B (en) | 2019-12-10 | 2019-12-10 | Many rotor unmanned aerial vehicle with centrifugal nozzle |
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| CN201911257336.5A CN111066758B (en) | 2019-12-10 | 2019-12-10 | Many rotor unmanned aerial vehicle with centrifugal nozzle |
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| CN111066758A true CN111066758A (en) | 2020-04-28 |
| CN111066758B CN111066758B (en) | 2021-06-25 |
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| CN112173119A (en) * | 2020-10-23 | 2021-01-05 | 华南理工大学广州学院 | Pnematic unmanned aerial vehicle sprinkling system |
| DE102020004898A1 (en) | 2020-08-12 | 2022-02-17 | Airial Robotics GmbH | Unmanned aerial vehicle with at least one rotor for agricultural spraying operations |
| WO2022095225A1 (en) * | 2020-11-09 | 2022-05-12 | 深圳市大疆创新科技有限公司 | Frame of multi-rotor unmanned aerial vehicle and agricultural plant protection unmanned aerial vehicle |
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| Publication number | Publication date |
|---|---|
| CN111066758B (en) | 2021-06-25 |
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