CN108583899A - A kind of novel spray structure on unmanned plane propeller - Google Patents
A kind of novel spray structure on unmanned plane propeller Download PDFInfo
- Publication number
- CN108583899A CN108583899A CN201810465490.0A CN201810465490A CN108583899A CN 108583899 A CN108583899 A CN 108583899A CN 201810465490 A CN201810465490 A CN 201810465490A CN 108583899 A CN108583899 A CN 108583899A
- Authority
- CN
- China
- Prior art keywords
- propeller
- unmanned plane
- nozzle
- spray
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007921 spray Substances 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000003814 drug Substances 0.000 claims description 3
- 239000002917 insecticide Substances 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 15
- 230000035515 penetration Effects 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract description 2
- 239000000575 pesticide Substances 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
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 discloses a kind of novel spray structures loaded on unmanned plane propeller, blade slightly end specifically on propeller is disposed with conical nozzle, liquid to be sprayed imports the cavity inside propeller by pressue device, and is transmitted at the nozzle of blade by propeller centrifugal force.The present invention had both improved the penetration power of spraying granule, increase the target practice accuracy of spray particle, but make spray uniformly, spraying swath width increase, have the advantages that it is efficient it is convenient, cost-effective, environmental suitability is strong, suitable for emerging plant protection drone, have broad application prospects.
Description
Technical field
The invention belongs to the novel spray structures in modern agricultural technology more particularly to a kind of unmanned plane propeller.
Background technology
Pesticide spraying is the effective measures of plant prevention pest and disease damage, and China is a large agricultural country, ecological, safe efficient
Precision agriculture be at this stage so that following developing direction.With the transformation and adjustment of the structure of agricultural production, novel plant protection unmanned plane
The development and application of technology are sprayed to promoting the following China's agricultural modernization process to be of great significance relative to traditional aviation
Spill, novel plant protection unmanned plane can be efficiently completed rapidly pesticide spraying, can long-distance remote control operation, while not by geographic factor
Limitation.There is also part shortcomings, such as nozzle of UAV flight need to be connected to spraying for novel plant protection unmanned plane at this stage
On bar.It is this that nozzle is equipped on the mode on spray lance there is equipment using effects that poor, bad to target performance, flow field is interfered
Seriously, the problems such as liquid deposition is difficult to control and drain spray easily occurs or repeat sprinkling phenomenon.
Invention content
It is provided new on a kind of unmanned plane propeller it is an object of the invention to overcome the deficiencies in the prior art
Type flusher.
The present invention is that the blade slightly end on propeller is disposed with conical nozzle, and liquid to be sprayed passes through pressue device
The cavity being directed into inside propeller, and be transmitted at the nozzle of blade by propeller centrifugal force.
Furtherly, be provided in the vertical direction of propeller blade central axes cross-sectional area be S endoporus, 1mm2≤S≤
100 mm2, the angles of endoporus wall surface and endoporus central axes is α, 0 °≤α≤10 °, the conveying sprayed insecticide with toilet.
Furtherly, the nozzle includes the 5-10 taper spray orifices at circular arrangement, the bottom surface diameter of taper spray orifice
For D, the mm of 0.05mm≤D≤1, a diameter of d of taper spray orifice upper surface, 0.1D≤d≤D.
Furtherly, the pressue device is located at below the liquid loading device at unmanned plane ventral, is by controlling
System control, the pressure of exported liquid can be adjusted according to wind behaviour, revolution speed of propeller, flying height and crop feature.
Furtherly, the center of conical nozzle is equipped with infrared inductor, when 60% or more nozzle area is directed at nobody
When machine fuselage, which closes, and medicine liquid spray stops.
Nozzle is mounted on propeller blade by the present invention, improves sprinkling precision, effectively prevents repetition or drain spray
Phenomenon, make while increasing pesticide droplet penetration power pesticide spray uniformly, spraying swath width increase, improve unmanned plane sprinkling
Efficiency.Have the advantages that simple in structure, install convenient, rationally it is efficient.
Description of the drawings
Fig. 1：Propeller set of the present invention is applied to the overall diagram of unmanned plane；
Fig. 2：The longitudinal sectional view of propeller set of the present invention；
Fig. 3：The transverse sectional view of propeller set of the present invention；
Fig. 4：The nozzle overall diagram of propeller set of the present invention；
Fig. 5：The nozzle sectional view of propeller set of the present invention；
In figure：1, unmanned plane body；2, controller；3, medicine-chest；4, small pump；5, battery pack；6, loading hose；7, it connects
Bar；8, propeller；9, infrared inductor；10, tapered pressure nozzle；11, propeller inner hole；12, endoporus import；13, endoporus
Outlet；14, taper spray orifice；15, endoporus central axes.
Specific implementation mode
Embodiment is to be applied to emerging plant protection drone as shown in Fig. 1 ~ 5, includes mainly unmanned plane body 1, induction control
System (controller 2, infrared inductor 9), sprayer component（Medicine-chest 3 and loading hose 6）, pressue device（4 He of small pump
Battery pack 5）, carry the propeller 8 of tapered pressure nozzle 10；Pesticide by the small pump 4 on unmanned plane body 1 from
After being extracted out in medicine-chest 3, the loading hose 6 by being implanted to connecting rod 7 flows into the endoporus for the propeller 8 being fixed on unmanned plane
11 spaces, pesticide makees high speed centrifugation circular motion along with unmanned plane propeller 8, and huge centrifugal force flows through interior corners and turns
The pressure for changing high intensity into makes pesticide uniformly be sprayed from the spray orifice of tapered pressure nozzle, at the same time, what propeller 8 generated
Downdraught be supplied to spraying granule boosting power further enhance the penetration power of spraying and improve spraying target practice it is accurate
Property.
The nozzle center position of propeller 8 is provided with infrared inductor, when to rotate to 60% or more right for nozzle chaperonage blade
When quasi- unmanned aerial vehicle body, controller 2 receives the signal-off tapered pressure nozzle 10 of the transmission of infrared inductor 9, and spraying stops
Only spray.Controller 2 transmits signal and reopens nozzle after 10 circle of the rotation of propeller 8, and spraying restarts to spray.Due to nothing
Man-machine revolution speed of propeller is exceedingly fast, and such mode not only ensure that the continuity of sprinkling but also save pesticide dosage, substantially avoided
Phenomenon is sprayed in the repetition of pesticide spraying.In addition, small pump 4 is located inside the pesticide loading device that unmanned plane ventral is in, lead to
Cross the control of controller 2, the pressure P of exported pesticide can according to wind behaviour, revolution speed of propeller, flying height and crop feature into
Row adjustment.
It in the present embodiment, is learnt according to bernoulli equation, fluid flows to small-bore rear pressure potential from large aperture and increases.Cause
The cross-sectional area of propeller inner space designed by this is gradually reduced from propeller inner hole import 12 to interior hole exits 13, is being gone out
Mouth, which obtains maximum pressure, to be then converted into kinetic energy after the spray orifice of conical nozzle sprays, and the inside of single-blade is arranged to cross-sectional area
For S（1mm2≤S≤100 mm2）Endoporus（Wherein cross-sectional area S is vertical with endoporus central axes 15, so as to the pesticide of required sprinkling
In propeller delivered inside.Because of the pesticide flow at high speed inside propeller, Re >=4000 are defined according to Reynolds number and obtain flowing
Property is turbulent flow, and the friction pressure drop of friction coefficient f=0.3164/Re0.25, propeller inner hole can be ignored.By bernoulli
EquationLearn, with the reduction of cross-sectional area, fluid down kinetic energy reduce and three it is total
The sum is constant, therefore both pressure energy and gravitional force and increase, selects optimal allocation that could make than i.e. selection optimum angle
Pressure energy reaches maximum value, show that wall surface tangent line and the angle of endoporus central axes are α by cfd numerical simulation calculations（0°≤α≤
10°）When pressure energy accounting it is maximum, tapered pressure nozzle efficiency highest.
Tapered pressure nozzle is mounted on propeller inner hole exit, and each conical nozzle includes 5 ~ 10 into circular arrangement
Taper spray orifice 14, the bottom surface diameter D of taper spray orifice（0.05mm≤D≤1 mm）, the diameter d (0.1D of taper spray orifice upper surface
≤ d≤D), pesticide flows into spray orifice from bottom surface and is sprayed through upper surface, and each spray orifice is completely fixed in the blade end of propeller
The tip, and single-nozzle quality can be ignored relative to blade quality.Small pump is located at the agriculture that unmanned plane ventral is in
The lower section of medicine loading device is controlled according to external environment variation by controller.Infrared inductor, root are housed at orifice center
The switch and closure of nozzle are controlled according to rotation position.
To sum up, the present invention is pressurized by the centrifugal force that propeller rotation generates for pesticide spraying, both improves spray particle
Penetration power, increase the target practice accuracy of spray particle, but make spray uniformly, spraying swath width increase, thoughts are installed
Control system reasonable distribution pesticide spraying amount is answered, has the advantages that efficiently convenient, cost-effective, environmental suitability is strong, is suitable for
Emerging plant protection drone, has broad application prospects.
Examples detailed above is only the preferred embodiment of the present invention, is not intended to limit the invention, for the technology of this field
For personnel, the invention may be variously modified and varied, all within the spirits and principles of the present invention, made by any repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. the novel spray structure on a kind of unmanned plane propeller, it is characterised in that：Blade slightly end cloth on the propeller
It is equipped with conical nozzle, liquid to be sprayed is directed into the space inside propeller by pressue device, and is centrifuged by propeller
Power is transmitted at the nozzle of blade.
2. the novel spray structure on a kind of unmanned plane propeller according to claim 1, it is characterised in that：With propeller
The endoporus that cross-sectional area is S, 1mm are provided in the vertical direction of blade central axes2≤S≤100 mm2, endoporus wall surface and endoporus axis
The angle of line is α, 0 °≤α≤10 °, the conveying sprayed insecticide with toilet.
3. the novel spray structure on a kind of unmanned plane propeller according to claim 1, it is characterised in that：The tapered injection
Mouth includes the 5-10 taper spray orifices at circular arrangement, bottom surface a diameter of D, 0.05mm≤D≤1 mm of taper spray orifice, taper
A diameter of d of spray orifice upper surface, 0.1D≤d≤D.
4. the novel spray structure on a kind of unmanned plane propeller according to claim 1, it is characterised in that：The pressurization
Device is located at below the liquid loading device at unmanned plane ventral, is controlled by control system, the pressure for exporting liquid can basis
Wind behaviour, revolution speed of propeller, flying height and crop feature are adjusted.
5. the novel spray structure on a kind of unmanned plane propeller according to claim 1, it is characterised in that：Conical nozzle
Center be equipped with infrared inductor, when 60% or more nozzle area be aligned unmanned aerial vehicle body when, the conical nozzle close,
Medicine liquid spray stops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465490.0A CN108583899A (en) | 2018-05-16 | 2018-05-16 | A kind of novel spray structure on unmanned plane propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465490.0A CN108583899A (en) | 2018-05-16 | 2018-05-16 | A kind of novel spray structure on unmanned plane propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108583899A true CN108583899A (en) | 2018-09-28 |
Family
ID=63631287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465490.0A Pending CN108583899A (en) | 2018-05-16 | 2018-05-16 | A kind of novel spray structure on unmanned plane propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108583899A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033712A1 (en) * | 2020-08-12 | 2022-02-17 | Airial Robotics GmbH | Unmanned aircraft having at least one rotor for agricultural spraying operations |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4619401A (en) * | 1984-01-27 | 1986-10-28 | Sprayrite Manufacturing Co., Inc. | Controlled droplet applicator |
| RU2129507C1 (en) * | 1997-07-24 | 1999-04-27 | Маслоцов Виктор Александрович | Device for spraying liquid from flying vehicle |
| CN103723274A (en) * | 2013-12-20 | 2014-04-16 | 华南农业大学 | Spraying device for rotorcraft and application thereof |
| CN203889068U (en) * | 2014-04-14 | 2014-10-22 | 苏桂滨 | Wingtip sprinkling system for airplane of rotor wing type |
| CN204674833U (en) * | 2015-02-09 | 2015-09-30 | 徐斌 | A kind of pesticide spraying device of autogiro |
| CN105314114A (en) * | 2015-10-27 | 2016-02-10 | 重庆光煦科技有限公司 | Self-induction type pesticide feeding and spraying unmanned plane |
| CN106417234A (en) * | 2016-11-22 | 2017-02-22 | 王昊凡 | Intelligent pesticide spraying system |
| JP2017206066A (en) * | 2016-05-16 | 2017-11-24 | 株式会社プロドローン | Unmanned aircraft for spraying chemical solution |
| CN107817812A (en) * | 2017-10-31 | 2018-03-20 | 北京韦加无人机科技股份有限公司 | Plant protection unmanned plane and its medicine liquid spray control method |
-
2018
- 2018-05-16 CN CN201810465490.0A patent/CN108583899A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4619401A (en) * | 1984-01-27 | 1986-10-28 | Sprayrite Manufacturing Co., Inc. | Controlled droplet applicator |
| RU2129507C1 (en) * | 1997-07-24 | 1999-04-27 | Маслоцов Виктор Александрович | Device for spraying liquid from flying vehicle |
| CN103723274A (en) * | 2013-12-20 | 2014-04-16 | 华南农业大学 | Spraying device for rotorcraft and application thereof |
| CN203889068U (en) * | 2014-04-14 | 2014-10-22 | 苏桂滨 | Wingtip sprinkling system for airplane of rotor wing type |
| CN204674833U (en) * | 2015-02-09 | 2015-09-30 | 徐斌 | A kind of pesticide spraying device of autogiro |
| CN105314114A (en) * | 2015-10-27 | 2016-02-10 | 重庆光煦科技有限公司 | Self-induction type pesticide feeding and spraying unmanned plane |
| JP2017206066A (en) * | 2016-05-16 | 2017-11-24 | 株式会社プロドローン | Unmanned aircraft for spraying chemical solution |
| CN106417234A (en) * | 2016-11-22 | 2017-02-22 | 王昊凡 | Intelligent pesticide spraying system |
| CN107817812A (en) * | 2017-10-31 | 2018-03-20 | 北京韦加无人机科技股份有限公司 | Plant protection unmanned plane and its medicine liquid spray control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033712A1 (en) * | 2020-08-12 | 2022-02-17 | Airial Robotics GmbH | Unmanned aircraft having at least one rotor for agricultural spraying operations |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180928 |