CN107568187A - A kind of single drop generating device for plant protection field - Google Patents
A kind of single drop generating device for plant protection field Download PDFInfo
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- CN107568187A CN107568187A CN201710846594.1A CN201710846594A CN107568187A CN 107568187 A CN107568187 A CN 107568187A CN 201710846594 A CN201710846594 A CN 201710846594A CN 107568187 A CN107568187 A CN 107568187A
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Abstract
The present invention is a kind of agricultural machinery, specifically a kind of single drop generating device for plant protection field.The device mainly includes three parts, including part, device feed flow part and mobile platform part occur for droplet, are combined by three kinds of modes, form whole a set of single drop generating device.The drop generating device in plant protection field provided by the invention, produce single drop, drop caused by so making it possible to can detect the state that liquid is dropped in blade, research liquid is dropped in plant leaf spread condition and the deposition conditions of agricultural chemicals, and theoretical foundation is provided later agricultural chemicals saving to be used and reduced the residual of agricultural chemicals.
Description
Technical field
The present invention is a kind of agricultural machinery, specifically a kind of single drop generating device for plant protection field, main application
In the spraying operation of hole tray plant, and when falling on plant under shape research and drop when measurement plant protection field list drop falls
State research.
Background technology
The Chinese patent of Application No. 201310415264.9《A kind of device for producing agricultural chemicals quantitative diameter sprinkling droplet and
Method》A kind of device for producing agricultural chemicals quantitative diameter sprinkling droplet is disclosed, the device is connected with ball-screw by motor, led to
The forward displacements of ball screw turns is crossed to cause drips, then by drip the diameter of drop establish with before ball screw
Enter the relation of displacement, so that produce the droplet for determining diameter.But the method does not possess continuous generation drop, because every time
Ball screw can not produce fixed vibration frequency, cause the drop that can not produce continuous-stable.Meanwhile by motor driven
Influence of the caused vibrations to drop does not illustrate in the device for producing drop during lead screw transmission.
The Chinese patent of Application No. 200510066208.4《Micro- droplet generation device》A kind of micro- droplet is disclosed to produce
Device, it can be compressed by pressure pulse caused by a piezoelectric element come the solution realized in a cavity so that solution
Ejected from the spray orifice of the spray nozzle sheet of device.But the scope of application of the device is in Medical sprayer and air-conditioning system
Micro- droplet produces, and does not illustrate in plant protection field.Meanwhile the mist droplet particle size that can be realized of the device does not illustrate, therefore do not make
Used for plant protection field list dropproducing devices.
The PCT Patent of Application No. 201480037411.6《A kind of drop generator for continuous stream ink jet print head》
Disclose one kind and be used for continuous stream ink jet print head, particularly the microlayer model generator for binary array printhead.It is logical
The folded actuator of PZT stack is crossed to drive the ink of ink-jet intracavitary so that each injection stream with the wall at a distance of substantially the same
Ink droplet is resolved at preset distance.And device setting is applied to inkjet printing field, by ink jet-print head side by side and close
The setting of chamber is sealed, in order to preferably realize inkjet printing.
Application No. 201510527822.X Chinese patent《Droplet ejection device and use droplet ejection device deposition system
The method of standby CNTs films》A kind of droplet ejection device is disclosed, one kind is further related to and carbon is prepared using droplet ejection device deposition
Nanotube.The vibratory driver of the droplet ejection device makes driving piezoelectric ceramic tube produce fast vibration, and piezoelectric ceramic tube produces
Vibration cNTS suspension in fluid channel resonant cavity is transmitted to by the glass tube that resonates, realize the spray of micro- CNTS suspension droplets
Penetrate.The device embodies application of the droplet ejection device in microelectronic product is prepared, but without explanation droplet ejection device
The droplet size ejected is how many, does not also mention otherwise application.
The content of the invention
The present invention is applied to the spraying operation of hole tray plant, and the shape research during list drop whereabouts of observation plant protection field
Remained with collision status research when plant is fallen under drop and reduction agricultural chemicals on plant leaf.
The present invention relates to a kind of single drop generating device for plant protection field, the device mainly includes three parts, bag
Include droplet and part, device feed flow part and mobile platform part occurs.Combined by three kinds of modes, form whole a set of single liquid
Drip generating means.
The advantages of this patent：A kind of drop generating device in plant protection field is provided, produces single drop, so that can
Caused drop can detect the state that liquid is dropped in blade, and research liquid is dropped in plant leaf spread condition and the deposition of agricultural chemicals
Situation, theoretical foundation is provided later agricultural chemicals saving to be used and reduced the residual of agricultural chemicals.
Droplet in the present invention occurs part and is achieved in the following ways：Vertically upward equipped with storage on reservoir support
Liquid device, reservoir are linked together by woven hose and shower nozzle reservoir, and there are piezoelectricity copper sheet, piezoelectricity copper sheet in shower nozzle reservoir top
Linked together with voltage signal generator, provide voltage signal to piezoelectric patches by voltage signal generator so that piezoelectric patches
Produce vibration.
Further, described droplet is as caused by the vibration of piezoelectricity copper sheet, and piezoelectricity copper sheet selects FT-20T-
8.0A15, using a diameter of 20mm piezoelectric patches, it can preferably produce vibration.Piezoelectricity copper sheet and the shower nozzle liquid storage coordinated simultaneously
Device using interference fit, such piezoelectric patches will not because of continuous vibration and under fall in shower nozzle reservoir.
Further, described shower nozzle reservoir connection shower nozzle, the coupling part of shower nozzle are connected using spiral, keep shower nozzle
Pressure stability in reservoir, to allow drop preferably to drip.Meanwhile shower nozzle reservoir is fixed on shower nozzle liquid storage vertically downward
On device support.
Further, the described reservoir support of shower nozzle vertically downward is marked with scale, realizes 0-50mm regulation, is used for
Study the relation between the height of shower nozzle and liquid-drop diameter.And graduated scale also is provided with reservoir support vertically upward, realize
Regulation of the reservoir between 0-50cm, for studying the relation between the height of reservoir and liquid-drop diameter.
Device feed flow part in the present invention is achieved in the following ways：The liquid feed device of the present apparatus is except with liquid storage
Outside device feed flow, second set of liquid feed device has been also prepared for, therefore the controllability of feed flow by hydraulic system feed flow, can be realized, together
When solve the problems, such as reservoir cleaning, injection liquid pollution problem.
Further, described hydraulic system, the feed flow part of liquid be move start when, by the first hydraulic pump from
Solution is extracted in first liquid storage tank taking feed flow, electromagnetic relief valve is adjusted into the pressure of hydraulic system and made it stable, wherein
Pressure during now feed flow is detected with first pressure table, the flow of system is then entered by flow speed control valve coarse adjustment；Then with decompression
Valve reduces the flow stream pressure into hydraulic system, and subsequently into flow divider, a portion passes through flow divider fine adjustment function
Into in the first solenoid directional control valve, shower nozzle is supplied, another part is further separated into the 4th liquid storage tank and recycled again；In shower nozzle
The other end of liquid-inlet connects second solenoid directional control valve again, and the second solenoid directional control valve is connected to the inlet of the second hydraulic pump,
The outlet of second hydraulic pump connects the 5th liquid storage tank.Start the second hydraulic pump by the portion in jet hole pipeline while moving and terminating
Liquid separation body quickly sucks back the 5th liquid storage tank, can so eliminate the influence brought by liquid stream inertia to injection forming effect, simultaneously
Liquid circulation is utilized well, avoids unnecessary waste.
Further, the solenoid directional control valve in described system uses 2W-025-06 direct-acting electromagnetic valves, flow aperture
2.5mm, it can be very good to control the break-make of the flowing of liquid in shower nozzle；Flow divider uses FLB4H, and its effect is that precise fine-adjustment enters
Enter the uninterrupted of shower nozzle spray chamber.
Mobile platform part in the present invention is achieved in the following ways：Mobile platform be by two ball-screws,
What motor and hole tray clamping frame formed, mobile platform is located at below shower nozzle reservoir.Two of which ball screw is combined into cross
Slider platform, the motor of ball-screw use 57HBP56AL4-TF1, i.e. 57 stepper motors, and it uses 1.8 ° of step angles,
Fuselage length is 56mm.Motor is connected with ball-screw by shaft coupling, ensures the high transmission accuracy of ball-screw.Two balls
Between screw mandrel, ball-screw 1 is provided with a workbench so that two are arranged into upper-lower position, the work installed on ball-screw 1
Make together with platform is bolted with the base of ball-screw 2 of top.Meanwhile two ball-screws are arranged vertically, to ensure
Bigger working range.
Further, the ball-screw of described crosshead shoe platform uses 1204-100, and wherein its leading screw is a diameter of
12mm, pitch 4mm, i.e. the motor ball-screw that turns around walk 4mm, and the effective travel of ball-screw is 100mm.In ball
One upper table of ball-screw 2 is housed on leading screw 2, the hole tray dress of fixed hole tray is installed on the upper table of ball-screw 2
Together with clamping frame, wherein hole tray clamping frame are bolted with the upper table of ball-screw 2.
Further, described hole tray clamping frame screw pitch 4, realizes the big of hole tray clamping frame by screw drive
It is small flexible, 21 caves can be achieved, 32 caves, the clamping in 50 caves, the size of hole tray is 60x60mm, 40x40mm or 30x30mm.
Brief description of the drawings
Fig. 1 is single drop generating device general arrangement figure；
Fig. 2 is the schematic diagram of liquid feed device；
Fig. 3 is ejecting device schematic diagram；
Fig. 4 is shower nozzle reservoir coupling part schematic diagram；
Fig. 5 is that shower nozzle reservoir bracket fixture portions divide schematic diagram；
Fig. 6 is stage apparatus schematic diagram；
Fig. 7 is hole tray clamping frame adjusting knob schematic diagram；
Fig. 8 is crosshead shoe platform schematic diagram
In figure：1. motor；2. crosshead shoe platform；2-1. ball-screws 1；The upper table of 2-2. ball-screws 1；2-3. rolling
Ballscrew 2；The hole tray clamping frame of 2 upper table of 2-4. ball-screws 3.；4. shower nozzle reservoir interface；5. woven hose；6. reservoir；
7. reservoir support vertically upward；8. voltage signal generator；9. piezoelectricity copper sheet；10. shower nozzle reservoir；11. shower nozzle reservoir
Geometrical clamp；12. shower nozzle reservoir support vertically downward；13. shower nozzle；14th, 16,22,24,34. liquid storage tank；15th, 28,33. filtrate
Device；17. electromagnetic relief valve；18th, 32. hydraulic pump；19th, 26. pressure meter switch；20th, 27. pressure gauge；21. flow speed control valve；23. decompression
Valve；25. flow divider；29th, 31. solenoid directional control valve；13-1. pin is fastened；13-2. rectangle bolt；13-3. nozzles；35. rectangle bolt connects
Connect hole；36. taper hole；37. reservoir support high scale disk；38. hole tray clamping frame adjusting knob
Embodiment
The present invention relates to a kind of single drop generating device for plant protection field, the device mainly includes three parts, bag
Include droplet and part, device feed flow part and mobile platform part occurs.Combined by three kinds of modes, form whole a set of single liquid
Drip generating means.
Reservoir 6 is housed vertically upward, reservoir 6 is connected by woven hose 5 and shower nozzle reservoir 10 on reservoir support 7
Together, there is piezoelectricity copper sheet 9 top of shower nozzle reservoir 10, what piezoelectricity copper sheet 9 and voltage signal generator 8 linked together.By
Voltage signal generator 8 provides voltage signal to piezoelectricity copper sheet 9 so that piezoelectricity copper sheet 9 produces vibration.Droplet is by piezoelectricity copper sheet
Caused by 9 vibration, piezoelectricity copper sheet 9 selects FT-20T-8.0A15, can be preferably using a diameter of 20mm piezoelectricity copper sheet 9
Produce vibration.Piezoelectricity copper sheet 9 is used with the shower nozzle reservoir 10 coordinated and is interference fitted simultaneously, and such piezoelectric patches will not be because of continuous
Vibration and under fall in shower nozzle reservoir 10.
Device also provides a set of hydraulic pressure liquid feed device in addition to by the use of liquid storage bottle as first set liquid feed device, so as to
The recovery of solution and avoid spray liquid pollution the problems such as.The feed flow part of liquid is when moving beginning, passes through the first hydraulic pump
18 extract solution from the first liquid storage tank 14 takes feed flow, and electromagnetic relief valve 17 is adjusted into the pressure of hydraulic system and is allowed to steady
It is fixed, wherein pressure when now feed flow is detected with first pressure table 20, the flow of system is then entered by the coarse adjustment of flow speed control valve 21；
Then the flow stream pressure into hydraulic system is reduced with pressure-reducing valve 23, subsequently into flow divider 25, a portion passes through
Flow divider fine adjustment function enters in the first solenoid directional control valve 29, supplies shower nozzle 13, and another part is further separated into the 4th liquid storage tank 24
In recycle again；Second solenoid directional control valve 31 is connect again in the other end of nozzle liquid import, is connected to the second liquid thereafter
The inlet of press pump 32, the outlet of the second hydraulic pump 31 connect the 5th liquid storage tank 34.Start the second hydraulic pressure while moving and terminating
Partially liq in jet hole pipeline is quickly sucked back the 5th liquid storage tank 34 by pump 32, can so be eliminated because liquid stream inertia is to injection
The influence that forming effect is brought, while well utilize liquid circulation, avoid unnecessary waste.
In the lower section of shower nozzle, provided with mobile platform, mobile platform is included by being formed on two ball-screws plus platform
Crosshead shoe platform 2, wherein ball-screw uses 1204-100, the wherein a diameter of 12mm of its leading screw, pitch 4mm, i.e., electric
The machine ball-screw that turns around walks 4mm, and the effective travel of ball-screw is 100mm.Motor uses 57HBP56AL4-TF1, i.e.,
57 stepper motors, it uses 1.8 ° of step angles, fuselage length 56mm.Above crosshead shoe platform 2, fixed hole tray is installed
Hole tray clamping frame 3, wherein hole tray clamping frame 3 can stretch with size, so can be very good to fix the cave of different size shape
Disk.
In the application of reality, 80V voltages and 50HZ driving frequencies are inputted by voltage signal generator, to drive piezoelectricity
The vibration of copper sheet 9.Because the up-down vibration of piezoelectricity copper sheet 9 brings the change of pressure in shower nozzle reservoir 10 to carry out extruding jet reservoir
In liquid so that drop can overcome at shower nozzle surface tension formed drop, come off from nozzle.Because piezoelectricity copper
The vibration very little of piece 9, so device can realize the size droplet diameter ejected between 50-300 μm.Belong in plant protection field
The size droplet diameter of unmanned plane spraying, so working effect of the unmanned plane spray droplet on plant can be simulated.Then due to liquid
After drop comes off from shower nozzle reservoir, the pressure in shower nozzle reservoir becomes big, and then reservoir will provide liquid to shower nozzle
In reservoir so that the pressure in shower nozzle reservoir keeps dynamic equilibrium.
When providing drop with same liquid-supplying system, then the 3-4 device of shower nozzle 13 is combined, can be fine
Simulation shower nozzle effect, while also achieve multiple drops while drip.In the course of the work, by the rotation of motor and open
Close, the rotation of ball-screw 1,2 is driven, so as to drive the movement of the hole tray clamping frame on ball-screw 2 so that hole tray clamping frame
The lower section of shower nozzle 13 can be moved to so that drop can be dripped to accurately on the plant in the hole tray on hole tray clamping frame.Cause
The size of hole tray on hole tray clamping frame can be adjusted by the adjusting knob 38 of corner for hole tray clamping frame, it is different to adapt to
Different size of hole tray.Its not only ensure that drop fall on plant to target effect, and decoction can be controlled to spray on demand
Penetrate, can significantly improve pesticide supplying effect and reduce formulation rate.
During dispenser, by arranging card on the plant of hole tray, it is found that drop coverage rate reaches on the card of plant
To 90%, having sprayed one group of 3*7 hole tray needs time 10S, and the volume for spraying drop is 5.16ml.And boom sprayer is used to spray
It is 4S to shoot away one group of 3*7 hole tray to need the time, and the volume of the drop ejected is 7.23ml.I.e., under the same conditions, to the greatest extent
The pipe time has somewhat grown a bit, but uses the usage amount of the more traditional boom sprayer agricultural chemicals of this drop generating device to reduce
40%, it greatly reducing the use of agricultural chemicals, it is therefore prevented that more sprays of agricultural chemicals, cross spray situation, reduce pollution of the agricultural chemicals to environment.
Claims (9)
- A kind of 1. single drop generating device for plant protection field, it is characterised in that：Single drop generating device includes three Part, device feed flow part and mobile platform part occur for part, including droplet；Part occurs for droplet by reservoir vertically upward Support, reservoir, shower nozzle reservoir, piezoelectricity copper sheet, voltage signal generator, shower nozzle and shower nozzle reservoir support group vertically downward Into reservoir being equipped with reservoir support vertically upward, reservoir is linked together by woven hose and shower nozzle reservoir, shower nozzle There is piezoelectricity copper sheet reservoir top, what piezoelectricity copper sheet and voltage signal generator linked together, is carried by voltage signal generator Voltage supplied signal is to piezoelectric patches so that piezoelectric patches produces vibration, is provided with shower nozzle below shower nozzle reservoir, shower nozzle reservoir is fixed on Vertically downward on shower nozzle reservoir support；Mobile platform part is located at droplet and beneath portions occurs, by two ball-screws, motors Formed with hole tray clamping frame, two of which ball screw is combined into crosshead shoe platform, above crosshead shoe platform, is provided with The hole tray clamping frame of fixed hole tray, wherein hole tray clamping frame can size stretch.
- A kind of 2. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Described droplet It is as caused by the vibration of piezoelectricity copper sheet, piezoelectricity copper sheet selects FT-20T-8.0A15, using a diameter of 20mm piezoelectric patches, energy It is enough preferably to produce vibration；For piezoelectricity copper sheet with the shower nozzle reservoir that coordinates using being interference fitted, such piezoelectric patches will not be because simultaneously Fallen under for continuous vibration in shower nozzle reservoir.
- A kind of 3. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Described shower nozzle Reservoir connects shower nozzle, and the coupling part of shower nozzle is connected using spiral, the pressure stability in holding shower nozzle reservoir, to allow liquid Drop is preferably dripped.
- A kind of 4. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Described is vertical Be marked with scale to lower nozzle reservoir support, realize 0-50mm regulation, for study shower nozzle height and liquid-drop diameter it Between relation；And graduated scale also is provided with reservoir support vertically upward, regulation of the reservoir between 0-50cm is realized, is used Relation between the height of research reservoir and liquid-drop diameter.
- A kind of 5. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Except with liquid storage Outside device feed flow, device feed flow part is additionally provided with；Solution is extracted by the first hydraulic pump from the first liquid storage tank to overflow come feed flow, electromagnetism Valve is flowed to be adjusted into the pressure of hydraulic system and make it stable, wherein pressure when now feed flow is detected with first pressure table, Then the flow of system is entered by flow speed control valve coarse adjustment；Then the flow stream pressure into hydraulic system is reduced with pressure-reducing valve, so Enter afterwards in flow divider, a portion is entered in the first solenoid directional control valve by flow divider fine adjustment function, supplies shower nozzle, another Part is further separated into the 4th liquid storage tank to be recycled again；Second electromagnetism is connect again in the other end of nozzle liquid import to change To valve, the second solenoid directional control valve is connected to the inlet of the second hydraulic pump, and the outlet of the second hydraulic pump connects the 5th liquid storage tank；Moving Start the second hydraulic pump while end and the partially liq in jet hole pipeline is quickly sucked back into the 5th liquid storage tank, can so disappear Except the influence brought by liquid stream inertia to injection forming effect, while liquid circulation is utilized well, avoid unnecessary wave Take.
- A kind of 6. single drop generating device for plant protection field as claimed in claim 5, it is characterised in that：Described system In solenoid directional control valve use 2W-025-06 direct-acting electromagnetic valves, flow aperture 2.5mm, can be very good to control in shower nozzle The break-make of the flowing of liquid；Flow divider uses FLB4H, and it acts on the uninterrupted for being precise fine-adjustment into shower nozzle spray chamber.
- A kind of 7. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Ball-screw Motor uses 57HBP56AL4-TF1, i.e. 57 stepper motors, and it uses 1.8 ° of step angles, fuselage length 56mm；Motor Connected with ball-screw by shaft coupling, ensure the high transmission accuracy of ball-screw；Between two ball screws, on ball-screw 1 Provided with a workbench so that two are arranged into upper-lower position, the workbench and the ball wire of top installed on ball-screw 1 The base of thick stick 2 is bolted together；Meanwhile two ball-screws are arranged vertically, to ensure bigger working range.
- A kind of 8. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Described cross The ball-screw of Slider platform uses 1204-100, the wherein a diameter of 12mm of its leading screw, and pitch 4mm, i.e. motor turn around rolling Ballscrew walks 4mm, and the effective travel of ball-screw is 100mm.Equipped with work on a ball-screw 2 on ball-screw 2 Make platform, the hole tray clamping frame of fixed hole tray, wherein hole tray clamping frame and ball-screw are installed on the upper table of ball-screw 2 2 upper tables are bolted together.
- A kind of 9. single drop generating device for plant protection field as claimed in claim 1, it is characterised in that：Described hole tray Clamping frame screw pitch 4, realizes that the size of hole tray clamping frame is stretched, 21 caves, 32 caves, 50 caves can be achieved by screw drive Clamping, the size of hole tray is 60x60mm, 40x40mm or 30x30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846594.1A CN107568187B (en) | 2017-09-19 | 2017-09-19 | A single drop generating device for plant protection field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846594.1A CN107568187B (en) | 2017-09-19 | 2017-09-19 | A single drop generating device for plant protection field |
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| Publication Number | Publication Date |
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| CN107568187A true CN107568187A (en) | 2018-01-12 |
| CN107568187B CN107568187B (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904455A (en) * | 2022-05-26 | 2022-08-16 | 安阳工学院 | Linear controllable accurate single-droplet generating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339897B1 (en) * | 1997-07-08 | 2002-01-22 | Microfab Technologies, Inc. | Method and apparatus for dispensing airborne materials for controlling pests |
| CN102419246A (en) * | 2011-08-24 | 2012-04-18 | 北京航空航天大学 | Mini-type water drop generator |
| CN103478109A (en) * | 2013-09-12 | 2014-01-01 | 北京农业信息技术研究中心 | Device and method for generating quantitative-diameter pesticide spraying droplets |
| CN206483629U (en) * | 2016-12-29 | 2017-09-12 | 天津大学 | A kind of different refractivity list drop generating device |
-
2017
- 2017-09-19 CN CN201710846594.1A patent/CN107568187B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339897B1 (en) * | 1997-07-08 | 2002-01-22 | Microfab Technologies, Inc. | Method and apparatus for dispensing airborne materials for controlling pests |
| CN102419246A (en) * | 2011-08-24 | 2012-04-18 | 北京航空航天大学 | Mini-type water drop generator |
| CN103478109A (en) * | 2013-09-12 | 2014-01-01 | 北京农业信息技术研究中心 | Device and method for generating quantitative-diameter pesticide spraying droplets |
| CN206483629U (en) * | 2016-12-29 | 2017-09-12 | 天津大学 | A kind of different refractivity list drop generating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904455A (en) * | 2022-05-26 | 2022-08-16 | 安阳工学院 | Linear controllable accurate single-droplet generating device |
| CN114904455B (en) * | 2022-05-26 | 2023-12-08 | 安阳工学院 | Linear controllable accurate single droplet generating device |
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