CN102494906B - Test device for air-assisted spraying - Google Patents
Test device for air-assisted spraying Download PDFInfo
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- CN102494906B CN102494906B CN201110359980.0A CN201110359980A CN102494906B CN 102494906 B CN102494906 B CN 102494906B CN 201110359980 A CN201110359980 A CN 201110359980A CN 102494906 B CN102494906 B CN 102494906B
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Abstract
The invention discloses a test device for air-assisted spraying, which comprises a four-dimension moving device capable of adjusting four-dimension directions, a nozzle connected to the four-dimension moving device, a medicine liquid supplying device capable of adjusting pressure and connected with the nozzle, an air supply device capable of adjusting wind speed and located behind the nozzle and a control device respectively in electric connection with the four-dimension moving device, the medicine liquid supplying device and the air supply device. The control device is respectively used for controlling the position and angle of the nozzle, spraying pressure and the wind speed. The test device for the air-assisted spraying is reasonable in structure, convenient to operate, and capable of accurately adjusting the wind speed, the spraying pressure and the nozzle position, testing spraying atomizing characteristics under different conditions and providing platform support for accurate pesticide applying research.
Description
Technical field
The present invention relates to a kind of test device for air-assisted spraying, particularly a kind of can accurate adjustment wind speed size, the spray atomization characteristic test device of the factor such as atomisation pressure, nozzle position.
Background technology
In modern agricultural production, chemical prevention diseases and pests of agronomic crop plays an important role.According to FAO's statistics, owing to using chemical pesticide, 20%～25% agricultural product are retrieved in the whole world every year, are worth more than 1,000 hundred million dollars.To drop into the recoverable agricultural product that are equivalent to 4～5 times of value of agricultural chemicals of a agricultural chemicals substantially.China because of approximately 4,000 ten thousand tons, various disease pest and weed loss grain, accounts for 8.8% of national total output of grain every year.But in recent years due to a large amount of uses of agricultural chemicals, environment, agricultural and sideline food and Crop securify are brought to grave danger.Accuracy pesticide applying is to reduce residues of pesticides, reduces the important means that agricultural chemicals threatens environment, agricultural product and crops.
Orchard crop limb is tall and big, the dense abundant feature of branches and leaves determines that in garden accurate pesticide application technology, wind send pesticide application technology to occupy critical role.Wind send dispenser to have the advantages such as far firing range, penetration capacity be strong, but wind-force has a significant impact spray atomization characteristic tool.Research air-assisted spraying atomization characteristics, provides basic theory support for wind send spraying machine research and development, significant.
Air-assisted spraying atomization characteristics is subject to various factors, as wind speed size, atomisation pressure, spray direction, nozzle type etc.In order to study the affect rule of each influence factor on atomization characteristics, need a kind of can accurate adjustment wind speed size, the spray atomization characteristic test device of the factor such as atomisation pressure, nozzle position.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is to provide a kind of test device for air-assisted spraying, can accurate adjustment wind speed size, atomisation pressure, nozzle position, can test spray atomization characteristic under different condition.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of test device for air-assisted spraying, comprising:
The adjustable four-dimensional mobile device in four-dimensional orientation, be connected in the shower nozzle on described four-dimensional mobile device, the adjustable chemicals feeder of pressure being connected with described shower nozzle, be positioned at the adjustable air-supply arrangement of the wind speed at described shower nozzle rear and the control device being electrically connected to described four-dimensional mobile device, chemicals feeder and air-supply arrangement respectively, described control device is respectively used to control described nozzle position and angle, the size of atomisation pressure and wind speed.
As technique scheme preferably, described four-dimensional mobile device comprises X-axis guide rail, Y-axis guide rail, Z axis guide rail and the turning axle T axle that is crossing rectangular coordinate system, and described X-axis guide rail, Y-axis guide rail, Z axis guide rail are respectively arranged with X-axis leading screw in parallel, Y-axis leading screw, Z axis leading screw and lay respectively at X-axis slide block, Y-axis slide block and the Z axis slide block on it; Described Y-axis guide rail and described X-axis slide block are fixed, and described Z axis guide rail and described Y-axis slide block are fixed, and described T axle is fixed by T axle fixed body and described Z axis slide block, and described T axle fixed body is connected to T axle rotary body and is connected to described shower nozzle by fixed bar;
Described X-axis slide block, Y-axis slide block, Z axis slide block, T axle rotary body are connected and are driven by stepper motor driver with X-axis stepper motor, y-axis stepper motor, Z axis stepper motor, T shaft step motor respectively;
Described stepper motor driver is electrically connected to described control device.
As technique scheme preferably, described chemicals feeder comprises: for holding the gas tank of liquid; Air pump to air feed in described gas tank; Be positioned at the pressure transducer of described gas tank inside, it is for measuring in real time gas tank internal pressure; Be connected in the solenoid valve of the gas pipe line of described gas tank; Voltage regulator controllers, its input end and output terminal are electrically connected to described pressure transducer and described solenoid valve respectively, for reading in real time the measured value of described pressure transducer and controlling solenoid valve, open and close;
Described voltage regulator controllers is electrically connected to described control device.
As technique scheme preferably, described air-supply arrangement comprises: blower fan, has threephase asynchronous in described blower fan; The air duct being connected with blower fan, described air duct is fixed on the rear of described shower nozzle; Be positioned at the anemoscope of described air duct inside, described anemoscope is used for measuring wind speed size in air duct; The frequency converter being connected with described blower fan, for regulating described rotation speed of fan;
Described frequency converter is electrically connected to described control device.
As technique scheme preferably, described control device and described stepper motor driver, described voltage regulator controllers and described frequency converter are RS232 serial communication.
As technique scheme preferably, described control device comprises that data input module, nozzle position arrange module, module is set atomisation pressure and wind speed arranges module; Described data input module is for the input of test number, and described test number comprises shower nozzle coordinate, atomisation pressure value and air speed value; Described nozzle position arranges module, atomisation pressure and module and wind speed are set module is set is respectively used to control described stepper motor driver, voltage regulator controllers and frequency converter.
(3) beneficial effect
In the test device for air-assisted spraying that technique scheme provides, it comprises: the four-dimensional mobile device that four-dimensional orientation is adjustable, be connected in the shower nozzle on described four-dimensional mobile device, the adjustable chemicals feeder of pressure being connected with described shower nozzle, be positioned at the adjustable air-supply arrangement of the wind speed at described shower nozzle rear and the control device being electrically connected to described four-dimensional mobile device, chemicals feeder and air-supply arrangement respectively, described control device is respectively used to control described nozzle position and angle, the size of atomisation pressure and wind speed.This apparatus structure is reasonable, easy to operate, can accurate adjustment wind speed size, atomisation pressure, nozzle position, can test spray atomization characteristic under different condition, for accuracy pesticide applying research provides platform support.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of embodiment of the present invention test device for air-assisted spraying;
Fig. 2 is the structural representation of embodiment of the present invention test device for air-assisted spraying;
Fig. 3 is the four-dimensional mobile device structural representation of embodiment of the present invention test device for air-assisted spraying;
Fig. 4 is the T axle rotary display stand structure schematic diagram of embodiment of the present invention test device for air-assisted spraying;
Fig. 5 is the blower fan structure schematic diagram of embodiment of the present invention test device for air-assisted spraying;
Wherein, 1: laser emission probe; 2: shower nozzle; 3: fixed bar; 4:T axle rotary body; 5:T shaft step motor; 6:T axle fixed body; 7:Y axial filament thick stick; 8:Y axis rail; 9:X axle slide block; 10:X axis rail; 11:Y shaft step motor; 12:Y axle slide block; 13:Z axis rail; 14:Z axle slide block; 15:Z axial filament thick stick; 16:Z shaft step motor; 17: laser pick-off probe; 18: laser droplet measuring instrument support; 19: fan supporter; 20: blower housing; 21: threephase asynchronous; 22: air inlet; 23: air outlet.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, structural representation for the test device for air-assisted spraying of the present embodiment, it comprises: the four-dimensional mobile device that four-dimensional orientation is adjustable, be connected in the shower nozzle 2 on four-dimensional mobile device, the adjustable chemicals feeder of pressure being connected with shower nozzle 2, be positioned at the adjustable air-supply arrangement of the wind speed at shower nozzle 2 rears and the control device being electrically connected to four-dimensional mobile device, chemicals feeder and air-supply arrangement respectively, control device is respectively used to control shower nozzle 2 positions and angle, the size of atomisation pressure and wind speed.
Control device can be selected as computing machine, single-chip microcomputer etc., the preferred industrial computer of the present embodiment, and control device inside is provided with controls software and pre-set programs.Control device application software is controlled voltage regulator controllers, frequency converter and stepper motor driver to control atomisation pressure, wind speed and nozzle position; Laser droplet measuring instrument, for measuring the atomization characteristics parameters such as droplet size and droplet speed.
In conjunction with shown in Fig. 2 to 4, four-dimensional mobile device comprises X-axis guide rail 10, Y-axis guide rail 8, Z axis guide rail 13 and the turning axle T axle that is crossing rectangular coordinate system, and X-axis guide rail 10, Y-axis guide rail 8, Z axis guide rail 13 are respectively arranged with X-axis leading screw in parallel, Y-axis leading screw 7, Z axis leading screw 15 and lay respectively at X-axis slide block 9, Y-axis slide block 12 and the Z axis slide block 14 on it; Y-axis guide rail 8 is fixing with X-axis slide block 9, and Z axis guide rail 13 is fixing with Y-axis slide block 12, and T axle is fixing with Z axis slide block 14 by T axle fixed body 6, and T axle fixed body 6 is connected to T axle rotary body 4 and is connected to shower nozzle 2 by fixed bar 3; X-axis slide block 9, Y-axis slide block 12, Z axis slide block 14, T axle rotary body 4 are connected and are driven by stepper motor driver with X-axis stepper motor, y-axis stepper motor 11, Z axis stepper motor 16, T shaft step motor 5 respectively; Stepper motor driver is electrically connected to control device.Above-mentioned four-dimensional mobile device can drive shower nozzle 2 accurately to move fast, and makes shower nozzle 2 accurately in a certain definite angle.Laser emission probe 1 and laser pick-off probe 17 are fixed on laser droplet measuring instrument support 18, for detection of the spray parameters of probe 3.
Chemicals feeder comprises: for holding the gas tank of liquid, the top of this gas tank is air, and bottom is liquid; Air pump to air feed in gas tank; Be positioned at the pressure transducer of gas tank inside, it is for measuring in real time gas tank internal pressure; Be connected in the solenoid valve of the gas pipe line of gas tank; Voltage regulator controllers, its input end and output terminal are electrically connected to pressure transducer and solenoid valve respectively, open and close, thereby guarantee air pressure constant of gas tank inside, thereby guarantee the stable of atomisation pressure for reading in real time the measured value of pressure transducer and controlling solenoid valve; Voltage regulator controllers is electrically connected to control device.
Air-supply arrangement comprises: blower fan, has threephase asynchronous 21 in blower fan; The air duct being connected with blower fan, air duct is fixed on the rear of shower nozzle 2; Be positioned at the anemoscope of air duct inside, anemoscope is used for measuring wind speed size in air duct; The frequency converter being connected with blower fan, for regulating rotation speed of fan; Frequency converter is electrically connected to control device.As shown in Figure 5, the blower fan structure schematic diagram of embodiment of the present invention test device for air-assisted spraying; This blower fan concrete structure has: fan supporter 19, for fixing and support blower fan; Blower housing 20; Air inlet 22; Air outlet 23; Threephase asynchronous 21, for driving blower fan, this motor speed can regulate by the mode of frequency modulation.
The preferred control device of the present embodiment and stepper motor driver, voltage regulator controllers and frequency converter are RS232 serial communication.Same, also can be by mode transmission of signals such as parallel port communications.
Control device comprises that data input module, nozzle position arrange module, module is set atomisation pressure and wind speed arranges module; Data input module is for the input of test number, and test number comprises shower nozzle coordinate, atomisation pressure value and air speed value; Nozzle position arranges module, atomisation pressure and module and wind speed are set module is set is respectively used to control step motor driver, voltage regulator controllers and frequency converter.
Because this test device for air-assisted spraying has said structure, can complete wind and send droplet characteristic test test, the specific implementation process of this device is as follows:
During work, liquid is poured in gas tank, open air pump, voltage regulator controllers, frequency converter, laser droplet measuring instrument and computer power supply, start computer control software; By this software, nozzle position parameters is set, as input shower nozzle target x, y, z coordinate and angle, adjust nozzle position and angle, after clicking " location " button, this software passes through RS232 serial ports to stepper motor driver sending controling instruction, and then drives four-dimensional transfer table to drive shower nozzle to arrive assigned address and special angle; By computer control software, atomisation pressure is set, by input atomisation pressure setting value, and keep atomisation pressure on this atomisation pressure minimum value, click after " startups " button this software by RS232 serial ports to voltage regulator controllers sending controling instruction, this controller regulates by switch electromagnetic valve and is in the stable and setting value of atomisation pressure; By computer control software, wind speed is set, by inputting wind speed sizes values, regulate wind speed size in air duct, after click " startup " button, this software passes through RS232 serial ports to frequency converter sending controling instruction, blower fan is turned round, the wind-force of output specific speed with specific rotation speeds; By laser droplet measuring instrument, measure and set the droplet characterisitic parameter such as droplet size and droplet speed under test condition.
As can be seen from the above embodiments, in the test device for air-assisted spraying that the embodiment of the present invention provides, it comprises: the four-dimensional mobile device that four-dimensional orientation is adjustable, be connected in the shower nozzle 2 on four-dimensional mobile device, the adjustable chemicals feeder of pressure being connected with shower nozzle 2, be positioned at the adjustable air-supply arrangement of the wind speed at shower nozzle 2 rears and the control device being electrically connected to four-dimensional mobile device, chemicals feeder and air-supply arrangement respectively, control device is respectively used to control shower nozzle 2 positions and angle, the size of atomisation pressure and wind speed.This apparatus structure is reasonable, easy to operate, can accurate adjustment wind speed size, atomisation pressure, shower nozzle 2 positions, can test spray atomization characteristic under different condition.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (5)
1. a test device for air-assisted spraying, is characterized in that, comprising:
The adjustable four-dimensional mobile device in four-dimensional orientation, be connected in the shower nozzle on described four-dimensional mobile device, the adjustable chemicals feeder of pressure being connected with described shower nozzle, be positioned at the adjustable air-supply arrangement of the wind speed at described shower nozzle rear and the control device being electrically connected to described four-dimensional mobile device, chemicals feeder and air-supply arrangement respectively, described control device is respectively used to control described nozzle position and angle, the size of atomisation pressure and wind speed;
Wherein, described four-dimensional mobile device comprises X-axis guide rail, Y-axis guide rail, Z axis guide rail and the turning axle T axle that is crossing rectangular coordinate system, and described X-axis guide rail, Y-axis guide rail, Z axis guide rail are respectively arranged with X-axis leading screw in parallel, Y-axis leading screw, Z axis leading screw and lay respectively at X-axis slide block, Y-axis slide block and the Z axis slide block on X-axis leading screw, Y-axis leading screw, Z axis leading screw; Described Y-axis guide rail and described X-axis slide block are fixed, and described Z axis guide rail and described Y-axis slide block are fixed, and described T axle is fixed by T axle fixed body and described Z axis slide block, and described T axle fixed body is connected to T axle rotary body and is connected to described shower nozzle by fixed bar;
Described X-axis slide block, Y-axis slide block, Z axis slide block, T axle rotary body are connected and are driven by stepper motor driver with X-axis stepper motor, y-axis stepper motor, Z axis stepper motor, T shaft step motor respectively;
Described stepper motor driver is electrically connected to described control device.
2. test device for air-assisted spraying as claimed in claim 1, is characterized in that, described chemicals feeder comprises: for holding the gas tank of liquid; Air pump to air feed in described gas tank; Be positioned at the pressure transducer of described gas tank inside, it is for measuring in real time gas tank internal pressure; Be connected in the solenoid valve of the gas pipe line of described gas tank; Voltage regulator controllers, its input end and output terminal are electrically connected to described pressure transducer and described solenoid valve respectively, for reading in real time the measured value of described pressure transducer and controlling solenoid valve, open and close to keep gas tank internal pressure constant;
Described voltage regulator controllers is electrically connected to described control device.
3. test device for air-assisted spraying as claimed in claim 2, is characterized in that, described air-supply arrangement comprises: blower fan, has threephase asynchronous in described blower fan; The air duct being connected with blower fan, described air duct is fixed on the rear of described shower nozzle; Be positioned at the anemoscope of described air duct inside, described anemoscope is used for measuring wind speed size in air duct; The frequency converter being connected with described blower fan, for regulating described rotation speed of fan;
Described frequency converter is electrically connected to described control device.
4. test device for air-assisted spraying as claimed in claim 3, is characterized in that, described control device and described stepper motor driver, described voltage regulator controllers and described frequency converter are RS232 serial communication.
5. test device for air-assisted spraying as claimed in claim 4, is characterized in that, described control device comprises that data input module, nozzle position arrange module, module is set atomisation pressure and wind speed arranges module; Described data input module is for the input of test number, and described test number comprises shower nozzle coordinate, atomisation pressure value and air speed value; Described nozzle position arranges module for controlling described stepper motor driver; Described atomisation pressure arranges module for controlling described voltage regulator controllers; Described wind speed arranges module for controlling described frequency converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110359980.0A CN102494906B (en) | 2011-11-14 | 2011-11-14 | Test device for air-assisted spraying |
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| CN201110359980.0A CN102494906B (en) | 2011-11-14 | 2011-11-14 | Test device for air-assisted spraying |
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| CN102494906B true CN102494906B (en) | 2014-04-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102759379A (en) * | 2012-06-29 | 2012-10-31 | 北京农业信息技术研究中心 | Wind speed measurement and control platform of wind-assisting medicine spraying machine and method thereof |
| CN106769816A (en) * | 2016-11-25 | 2017-05-31 | 防城港市质量技术监督局 | A kind of equipment for atomization test |
| CN107372433B (en) * | 2017-08-17 | 2020-08-28 | 北京农业智能装备技术研究中心 | Air-conveying pesticide applying device and method |
| CN107421711B (en) * | 2017-09-19 | 2023-06-16 | 南京林业大学 | Rotating cage spray head rotating speed measuring device and measuring method |
| CN109937992B (en) * | 2019-02-12 | 2024-05-14 | 中国农业大学 | Visual detection system and method for spraying effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004076075A1 (en) * | 2003-02-27 | 2004-09-10 | Nordson Corporation | Flow detection in liquid application systems |
| CN201131245Y (en) * | 2007-12-20 | 2008-10-15 | 北京农业信息技术研究中心 | Pesticides spraying machine |
| CN101373169B (en) * | 2008-10-16 | 2010-12-15 | 北京农业信息技术研究中心 | Atomizing block measuring apparatus |
| CN101893459B (en) * | 2009-12-22 | 2011-11-09 | 农业部南京农业机械化研究所 | Online test system for mobile dynamic mist distribution performance |
| CN201732006U (en) * | 2010-03-25 | 2011-02-02 | 江苏大学 | Testing platform for air curtain type spray lance spraying gas and liquid two-phase flow system |
| CN201680983U (en) * | 2010-04-28 | 2010-12-22 | 现代农装科技股份有限公司 | Spray amount distribution test control system |
| CN201673062U (en) * | 2010-05-14 | 2010-12-15 | 黑龙江省农业机械工程科学研究院 | Mist spray property comprehensive test stand |
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