CN210299219U - Air-assisted variable spraying machine - Google Patents
Air-assisted variable spraying machine Download PDFInfo
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- CN210299219U CN210299219U CN201921221401.4U CN201921221401U CN210299219U CN 210299219 U CN210299219 U CN 210299219U CN 201921221401 U CN201921221401 U CN 201921221401U CN 210299219 U CN210299219 U CN 210299219U
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- 238000005507 spraying Methods 0.000 title claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 25
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 19
- 239000003814 drug Substances 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 17
- 230000010365 information processing Effects 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000575 pesticide Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000002420 orchard Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
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- 241000196324 Embryophyta Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000203475 Neopanax arboreus Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The technology relates to plant protection machinery in the field of agricultural and forestry machinery, and provides an air-assisted variable spraying machine which is mainly used for variable spraying when pesticide is applied to fruit trees based on fruit tree characteristics; the variable spraying system at least comprises an air supply system arranged at the rear part of the rack and a variable spraying execution module, wherein the air supply system comprises an engine drive arranged in the rack, a centrifugal fan arranged at the rear part of the rack, a multi-outlet pipeline air supply device communicated with an outlet of the centrifugal fan, an air supply pipe communicated with the multi-outlet pipeline air supply device through a soft air pipe and provided with a plurality of air supply ports, the variable spraying system comprises a medicine box arranged in the rack and a plunger pump driven by the engine, a shunt arranged on the rack and communicated with the plunger pump through a liquid medicine hose and provided with a plurality of liquid distribution pipes, and a spray head arranged in each air supply port and communicated with the liquid distribution pipes through electromagnetic valves, and the electromagnetic valves are electrically connected with the single chip microcomputer.
Description
Technical Field
The technology relates to plant protection machinery in the field of agricultural and forestry machinery, and provides an air-assisted variable spraying machine which is mainly used for variable spraying when pesticide is applied to fruit trees based on fruit tree characteristics.
Background
In the orchard production link in the prior art, chemical prevention and control are still the most effective prevention and control measures for plant diseases and insect pests. At present, an orchard pesticide application instrument commonly adopted at home and abroad is an air-assisted sprayer. The air-assisted sprayer is used for delivering fine fog drops to a target under the action of auxiliary air flow, and although disturbance among leaves is increased to a certain extent, the penetrating power of the fog drops and the coverage rate of liquid medicine are improved, and the spraying effect is improved, the spraying devices still adopt constant-quantity spraying, so that an ideal prevention and treatment effect is obtained by excessive pesticide application on fruit trees, and the effective utilization rate of pesticide is greatly reduced. Excessive pesticide spraying not only causes economic loss, but also creates potential harm to the living environment of nearby residents.
In contrast, a new generation of orchard variable pesticide application instrument takes the region of interest as a guide, and can match the characteristics of fruit trees, including tree height, tree width, canopy volume, leaf density and the like, with pesticide application amount to form a variable spraying technology based on precise pesticide application. The measuring and collecting system for the characteristics of the fruit tree generally comprises an ultrasonic sensing detection system, a machine vision detection system and a laser scanning detection system. The ultrasonic wave emitted by the ultrasonic sensor seriously affects the resolution and the measurement precision of the system due to the huge angle divergence in the transmission process, so that the application of the ultrasonic sensing detection system in an orchard requires a group of ultrasonic sensors to be matched; the machine vision measurement system has the problems of needing to be calibrated, having no LIDAR sensor with high precision, being not suitable for a closed orchard under low illumination conditions and the like; the laser sensing measurement method has the advantages of high measurement precision, high speed and the like, and a high-precision fruit tree structure can be reconstructed from the 3D point cloud data by adopting a proper algorithm, so that the laser scanning detection system is a non-contact measurement technology widely used at present.
The existing orchard sprayer is mainly divided into a large manned type and a medium and small remote control self-propelled type. When the manned sprayer is used for pesticide application in forests, the pesticide application environment can threaten the health of operators to a certain extent, and the labor cost is increased; the remote-controlled self-propelled sprayer is limited by the remote control distance, so that a person needs to carry out tracking operation by holding a remote controller.
The existing orchard sprayer is often caused by the conditions of vehicle bumping, nonlinear running and the like due to the influence of unknown complex terrain in the actual spraying process, and the laser sensor is easy to detect and deviate, so that the spraying effect is influenced.
The soil of orchard, nursery is comparatively loose, and some ground fluctuation are comparatively obvious, require the sprayer to have better trafficability characteristic and climbing ability, and among the prior art, the carrier of sprayer selects crawler-type chassis carrier more for use.
Disclosure of Invention
The technical purpose of the technology is to provide an air-assisted variable spraying machine which is mainly used for variable spraying when pesticide is applied to fruit trees based on fruit tree characteristics.
The technical purpose is realized by the following technical scheme:
an air-assisted variable spraying machine comprises a traveling system, a vehicle body information acquisition system, a variable spraying system and a computer;
the walking system comprises a crawler-type chassis, a rack arranged on the crawler-type chassis and an electric box arranged on the rack;
the electric box is electrically connected with a computer arranged on the frame;
the vehicle body information acquisition system communicated with the computer through the USB serial port comprises an RTK-GPS receiver, an IMU inertia measurement unit and a Kalman filter, wherein the RTK-GPS receiver, the IMU inertia measurement unit and the Kalman filter are arranged on a fixed rod at the front part of the rack; the IMU inertial measurement unit comprises an accelerometer, a gyroscope angular velocity meter and an electronic compass; the vertical fixed rod is positioned on the middle split surface of the crawler-type chassis;
the variable spraying system comprises a fruit tree information acquisition module, an information processing and decision module and a variable spraying execution module; the information acquisition module connected with the computer through a USB data line comprises a laser scanning sensor arranged below the RTK-GPS receiver, a pair of laser ranging sensors arranged on two sides of the frame and symmetrical about the crawler chassis, and a ground speed sensor arranged in the middle of the frame; the information processing and decision-making module comprises a singlechip which is connected with the computer through a serial port;
the variable spray execution module comprises an air supply system and a variable spray system which are arranged at the rear part of the rack;
the air supply system comprises a centrifugal fan, a multi-outlet pipeline air supply device, a vertical adjustable support and air supply pipes, wherein the centrifugal fan is driven by an engine arranged in a rack and arranged at the rear part of the rack;
the variable spraying system comprises a medicine chest arranged in the frame, a plunger pump driven by an engine, a flow divider arranged on the frame and communicated with the plunger pump through a liquid medicine hose and provided with a plurality of liquid distributing pipes, and spray heads arranged in each air supply port and communicated with the liquid distributing pipes through electromagnetic valves by the liquid medicine hose, wherein the electromagnetic valves are electrically connected with the single chip microcomputer.
The beneficial effect of this technique is:
when in use:
and starting the crawler-type chassis, the plunger pump and the centrifugal fan, and selecting to start the variable spraying system and the vehicle body information acquisition system.
For the variable spraying system, after variable spraying is selected to be executed, the laser scanning sensor 2 acquires fruit tree point cloud data, the laser distance measuring sensor acquires distance information between a tree trunk and the air-assisted variable spraying machine, the ground speed sensor acquires travelling speed information of the air-assisted variable spraying machine and sends the travelling speed information to the computer, the computer processes the acquired information, spraying delay time and tree crown volume are calculated, then an electromagnetic valve opening and closing signal is generated and sent to the single chip microcomputer, and the single chip microcomputer drives the electromagnetic valve to perform variable spraying operation.
For a vehicle body information acquisition system, system initialization and alignment are carried out after path planning is completed, an IMU measurement unit acquires attitude angle information of the air-assisted variable spraying machine, an RTK-GPS acquires position information of the air-assisted variable spraying machine, a Kalman filter and an error control algorithm complete error correction of the attitude angle and position data of the air-assisted variable spraying machine, and the air-assisted variable spraying machine is made to travel according to a preset track.
The air-assisted variable spraying machine can spray variable spray when being used for spraying the fruit trees based on the characteristics of the fruit trees.
In the air-assisted variable spraying machine, the scanning angle of the laser scanning sensor is 270 degrees, the 90-degree scanning blind area is upward, and the distance between the longitudinal direction of the crawler-type chassis and the spray head is not less than 400 mm.
In the air-assisted variable spraying machine, the RTK-GPS receiver is positioned right above the laser scanning sensor, and the distance between the RTK-GPS receiver and the laser scanning sensor is 110mm-130 mm.
In the air-assisted variable spraying machine, the multi-outlet pipeline air-assisted device is an eight-outlet pipeline air-assisted device and comprises a shunting cavity fixedly connected at the outlet of the centrifugal fan and communicated with the centrifugal fan, and eight outlet pipelines communicated with the shunting cavity are uniformly distributed on the top surface of the shunting cavity.
In the air-assisted variable spraying machine, the eight air conveying pipes are five air conveying pipe ports and comprise hollow pipe bodies with sector ends in transition from round ends, the round ends of the pipe bodies are used for connecting the flexible air pipes, the sector ends of the pipe bodies are fixedly connected with five air conveying ports communicated with the pipe bodies, and acute angles formed between the adjacent air conveying ports are 15-17 degrees; the shower nozzle sets up in wind send mouthful outer punishment department, and the axis of shower nozzle and wind send mouthful central line coincidence, and the injection direction is outside.
In the air-assisted variable sprayer, the flow divider is provided with forty liquid distribution pipes which are respectively communicated with the spray head through forty electromagnetic valves and liquid medicine hoses.
In the air-assisted variable spraying machine, the adjustable support comprises two vertical rods which are fixedly connected to the frame and symmetrically distributed about the crawler-type chassis, four cross rods are arranged on each vertical rod through slideways in a way of moving along the axial direction of the vertical rod, all the cross rods are positioned in a plane determined by the two vertical rods, and a limit screw for locking the cross rods at any height on the vertical rods is arranged between the slideways and the vertical rods; the wind conveying pipe is arranged on the cross rod.
According to the air-assisted variable spraying machine, the cross rod is arranged on the vertical rod in a manner of moving along the radial direction of the vertical rod through the slide way, and the limiting screw used for locking the cross rod at any target radial position of the vertical rod is arranged between the cross rod and the slide way.
Foretell adjustable support, simple structure, the vertical position and the overhanging length of horizontal pole are easily adjusted, are even in the height of adjusting the wind pipe and the horizontal ascending position of fuselage, can satisfy different spray width demands.
The air-assisted variable spraying machine has the air-assisted distance of 0-7 m. Can meet the pesticide application requirement in a larger spraying range.
Drawings
FIG. 1 is a schematic diagram of an air-assisted variable displacement sprayer;
FIG. 2 is a schematic view of a multi-outlet duct air moving device;
FIG. 3 is a schematic structural view of the pneumatic tube;
FIG. 4 is a view A-A of FIG. 3;
FIG. 5 is a schematic view of the construction of an adjustable support, view 1;
FIG. 6 is a schematic view of the construction of an adjustable support, view 2;
FIG. 7 is an enlarged view at A of FIG. 6;
FIG. 8 is a flow chart of the operating principle of an air-assisted variable-displacement sprayer.
Detailed Description
The present technology is further described below with reference to the accompanying drawings:
referring to fig. 1, the air-assisted variable spraying machine comprises a walking system, a vehicle body information acquisition system, a variable spraying system and a computer.
The traveling system comprises a crawler-type chassis 13, a frame 4 fixedly connected on the crawler-type chassis 13, and an electric box 6 arranged on the frame 4, wherein a battery pack 5 is arranged in the electric box.
A computer holder 15 is provided on the rack 4, and a computer 14 is provided on the computer holder 15 and electrically connected to the electric box 6.
The vehicle body information acquisition system which communicates with the computer 14 through a USB serial port comprises an RTK-GPS receiver 1, an IMU inertial measurement unit 7 and a Kalman filter 8, wherein the RTK-GPS receiver 1 is arranged on a fixed rod 33 at the front part of the rack 4; the IMU inertial measurement unit 7 comprises an accelerometer, a gyroscope angular velocity meter and an electronic compass (not shown in the figures); the vertical fixing rod 33 is positioned on the middle section of the crawler-type chassis 13.
The IMU inertia measurement unit 7 is used for accurately acquiring the attitude angle information of the walking system in real time, and correcting the attitude angle deviation error of the walking system caused by jolt, nonlinear driving path and the like under complex terrain in real time by fusing laser scanning data.
The Kalman filter 8 is used for fusing data of the IMU inertial measurement unit 7 and the RTK-GPS receiver 1 to make up for the defects that the RTK-GPS signal updating frequency is low and the positioning error of the IMU inertial measurement unit 7 is accumulated along with time, so that accurate positioning is achieved and the deviation of the movement of the walking system is corrected in real time.
Referring to fig. 2-7, the variable spraying system includes a fruit tree information acquisition module, an information processing and decision module, and a variable spraying execution module.
The information acquisition module connected with the computer 14 through a USB data line comprises a laser scanning sensor 2 arranged below the RTK-GPS receiver 1, a pair of laser ranging sensors 3 arranged on two sides of the frame 4 and symmetrical about the crawler-type chassis 13, and a ground speed sensor 18 arranged in the middle of the frame 4; the information processing and decision-making module comprises a singlechip 9 connected with a computer 14 through a serial port.
The variable spray execution module comprises an air supply system and a variable spray system which are arranged at the rear part of the rack 4;
the air supply system comprises a centrifugal fan 20 which is driven by an engine 19 (in the present case, the engine 19 is a gasoline engine) arranged in a frame 4 and arranged at the rear part of the frame 4, a multi-outlet pipeline air supply device 23 which is fixedly connected at an outlet of the centrifugal fan 20 and each outlet pipeline 29 is communicated with the outlet of the centrifugal fan 20, a vertical adjustable support 21 which is fixedly connected at the rear part of the frame 4, an air supply pipe 22 which is movably arranged on the adjustable support 21, corresponds to the outlet pipelines 29 of the multi-outlet pipeline air supply device 23 one by one, is communicated with the multi-outlet pipeline air supply device 23 through a soft air pipe 12 and is provided with a plurality of tubular air supply ports 34, and the air supply ports 34 are uniformly distributed on a fan ring with an acute central angle.
The variable spraying system comprises a medicine box 16 arranged in a frame 4, a plunger pump 11 driven by an engine 19, a flow divider 17 which is arranged on the frame 4 and is communicated with a liquid outlet of the plunger pump 11 through a liquid medicine hose (not shown in the figure) and is provided with a plurality of liquid distribution pipes 35, a spray head 28 which is arranged in each air supply port 34 and is communicated with the liquid distribution pipes 35 through a liquid medicine hose 10, the electromagnetic valve 10 is electrically connected with a single chip microcomputer 9, and a liquid inlet of the plunger pump 11 is communicated with the medicine box 16.
The scanning angle of the laser scanning sensor 2 is 270 degrees forward, the scanning blind area of 90 degrees is upward, the distance between the laser scanning sensor 2 and the spray head in the longitudinal direction of the crawler-type chassis is not less than 400mm, and in the scheme, the distance between the laser scanning sensor 2 and the spray head in the longitudinal direction of the crawler-type chassis is 800 mm.
The RTK-GPS receiver 1 is located right above the laser scanning sensor 2, and the distance between the two is 110mm-130mm (in the present case, the distance is 120 mm).
The multi-outlet pipeline air supply device 23 is an eight-outlet pipeline air supply device, and comprises a flow dividing cavity 36 fixedly connected at the outlet of the centrifugal fan 20 and communicated with the centrifugal fan 20, and eight outlet pipelines 29 communicated with the flow dividing cavity 36 are uniformly distributed on the top surface of the flow dividing cavity 36.
The eight air conveying pipes 22 are five air conveying port air conveying pipes and comprise hollow pipe bodies 39 with circular ends 37 being converted into fan-shaped ends 38, the circular ends 37 of the pipe bodies 39 are used for connecting the flexible air pipes 12, the fan-shaped ends 38 of the pipe bodies 39 are fixedly connected with five air conveying ports 34 which are communicated with the pipe bodies, and the acute angles between the adjacent air conveying ports 34 are 15-17 degrees (in the case, the included angles between the adjacent air conveying ports 34 are 16 degrees); the spray head 28 is arranged at the outer opening of the air supply opening 34, the axis of the spray head 28 is overlapped with the central line of the air supply opening 34, and the spraying direction is outward. The five-wind feeding pipe is also called a five-finger type wind feeding pipe.
The specific embodiment of the spray head 28 arranged at the outer opening of the air supply opening 34 is as follows: the spray head 28 at the outer opening of the air supply opening 34 is communicated with a liquid inlet bent pipe 25 penetrating the pipe wall of the fan-shaped end 38, the liquid inlet bent pipe 25 is hermetically connected with the pipe wall penetrating the fan-shaped end 38, the outer end of the liquid inlet bent pipe 25 is communicated with a pipe joint 24, and the pipe joint 24 is communicated with the electromagnetic valve 10 on the flow divider 17 through a liquid medicine hose.
The diverter 17 has forty liquid distribution pipes 35, and the forty liquid distribution pipes 35 are respectively communicated with the head 28 through the liquid medicine hoses by means of forty electromagnetic valves 10.
The adjustable support 21 comprises two upright posts 26 which are fixedly connected to the frame 4 and symmetrically arranged about the crawler-type chassis 13, each upright post 26 is provided with four cross bars 31 which move along the axial direction of the upright post 26 through slideways 32, all the cross bars 31 are positioned in a plane determined by the two upright posts 26, and a limit screw 30 for locking the cross bars 31 at any height on the upright posts 26 is arranged between the slideways 32 and the upright posts 26; the ducts 22 are provided on the cross bars 31, one duct 22 being provided on each cross bar 31 in the illustration.
The cross bar 31 is arranged on the upright 26 by the slideway 32 moving along the radial direction of the upright 26, and a limit screw 40 for locking the cross bar 31 at any target radial position of the upright 26 is arranged between the cross bar 31 and the slideway 32.
The cross rod 31 and the vertical rod 26 are both circular rod pieces, the slideway 32 comprises a circular vertical tube 41 with an inner diameter slightly larger than the outer diameter of the vertical rod 26 and a circular transverse tube 42 with an inner diameter slightly larger than the outer diameter of the cross rod 31, the transverse tube 42 is perpendicular to the vertical tube 41 and fixedly connected to the outer side of the vertical tube 41, the vertical tube 41 is sleeved on the vertical rod 26, a limit screw 30 is arranged between the vertical tube 41 and the vertical rod 26, the cross rod 31 is movably arranged in the transverse tube 42, and a limit screw 40 is arranged between the cross rod 31.
The air-assisted variable spraying machine has the air-assisted distance of 0-7 m.
Referring again to fig. 8, in use:
and starting the crawler-type chassis, the plunger pump and the centrifugal fan, and selecting to start the variable spraying system and the vehicle body information acquisition system.
For the variable spraying system, after variable spraying is selected to be executed, the laser scanning sensor 2 acquires fruit tree point cloud data, the laser distance measuring sensor acquires distance information between a tree trunk and the air-assisted variable spraying machine, the ground speed sensor acquires travelling speed information of the air-assisted variable spraying machine and sends the travelling speed information to the computer, the computer processes the acquired information, spraying delay time and tree crown volume are calculated, then an electromagnetic valve opening and closing signal is generated and sent to the single chip microcomputer, and the single chip microcomputer drives the electromagnetic valve to perform variable spraying operation.
For a vehicle body information acquisition system, system initialization and alignment are carried out after path planning is completed, an IMU measurement unit acquires attitude angle information of the air-assisted variable spraying machine, an RTK-GPS acquires position information of the air-assisted variable spraying machine, a Kalman filter and an error control algorithm complete error correction of the attitude angle and position data of the air-assisted variable spraying machine, and the air-assisted variable spraying machine is made to travel according to a preset track.
The beneficial effect of this technique is:
the air-assisted variable spraying machine can spray variable spray when being used for spraying the fruit trees based on the characteristics of the fruit trees.
Claims (9)
1. An air-assisted variable spraying machine comprises a traveling system, a vehicle body information acquisition system, a variable spraying system and a computer;
the walking system comprises a crawler-type chassis, a rack arranged on the crawler-type chassis and an electric box arranged on the rack;
the electric box is electrically connected with a computer arranged on the frame;
the vehicle body information acquisition system communicated with the computer through the USB serial port comprises an RTK-GPS receiver, an IMU inertia measurement unit and a Kalman filter, wherein the RTK-GPS receiver, the IMU inertia measurement unit and the Kalman filter are arranged on a fixed rod at the front part of the rack; the IMU inertial measurement unit comprises an accelerometer, a gyroscope angular velocity meter and an electronic compass; the vertical fixed rod is positioned on the middle split surface of the crawler-type chassis;
the variable spraying system comprises a fruit tree information acquisition module, an information processing and decision module and a variable spraying execution module; the information acquisition module connected with the computer through a USB data line comprises a laser scanning sensor arranged below the RTK-GPS receiver, a pair of laser ranging sensors arranged on two sides of the frame and symmetrical about the crawler chassis, and a ground speed sensor arranged in the middle of the frame; the information processing and decision-making module comprises a singlechip which is connected with the computer through a serial port; it is characterized in that the utility model is characterized in that,
the variable spray execution module comprises an air supply system and a variable spray system which are arranged at the rear part of the rack; the air supply system comprises a centrifugal fan, a multi-outlet pipeline air supply device, a vertical adjustable support and air supply pipes, wherein the centrifugal fan is driven by an engine arranged in a rack and arranged at the rear part of the rack;
the variable spraying system comprises a medicine chest arranged in the frame, a plunger pump driven by an engine, a flow divider arranged on the frame and communicated with the plunger pump through a liquid medicine hose and provided with a plurality of liquid distributing pipes, and spray heads arranged in each air supply port and communicated with the liquid distributing pipes through electromagnetic valves by the liquid medicine hose, wherein the electromagnetic valves are electrically connected with the single chip microcomputer.
2. The air-assisted variable sprayer of claim 1, wherein the scanning angle of the laser scanning sensor is 270 ° and the scanning dead zone of 90 ° is upward, and the distance from the spray head in the longitudinal direction of the crawler-type chassis is not less than 400 mm.
3. The air-assisted variable displacement sprayer of claim 1, wherein the RTK-GPS receiver is located directly above the laser scanning sensor at a distance of 110mm to 130 mm.
4. The air-assisted variable-capacity spraying machine as claimed in claim 1, wherein the multi-outlet pipeline air-assisted device is an eight-outlet pipeline air-assisted device, and comprises a diversion cavity fixedly connected to an outlet of the centrifugal fan and communicated with the centrifugal fan, and eight outlet pipelines communicated with the diversion cavity are uniformly distributed on the top surface of the diversion cavity.
5. The air-assisted variable spraying machine according to claim 1, wherein the eight air conveying pipes are five air conveying port air conveying pipes and comprise hollow pipe bodies with round ends being transited into fan-shaped ends, the round ends of the pipe bodies are used for connecting a flexible air pipe, the fan-shaped ends of the pipe bodies are fixedly connected with five air conveying ports which are communicated with the pipe bodies, and an acute angle formed between every two adjacent air conveying ports is 15-17 degrees; the shower nozzle sets up in wind send mouthful outer punishment department, and the axis of shower nozzle and wind send mouthful central line coincidence, and the injection direction is outside.
6. The air-assisted variable sprayer of any one of claims 1, 4 and 5, wherein the diverter has forty liquid distribution pipes, and the forty liquid distribution pipes are respectively communicated with the spray head through liquid medicine hoses by means of forty electromagnetic valves.
7. The air-assisted variable sprayer of claim 1, wherein the adjustable support comprises two uprights fixedly connected to the frame and symmetrically arranged about the crawler-type chassis, each upright is provided with four cross bars moving along the axial direction of the upright through slideways, all the cross bars are located in a plane determined by the two uprights, and a limit screw for locking the cross bar at any height on the upright is arranged between the slideway and the upright; the wind conveying pipe is arranged on the cross rod.
8. The air-assisted variable sprayer of claim 7, wherein the cross bar is movably disposed on the upright rod along a radial direction of the upright rod by a slide, and a limit screw for locking the cross bar at any desired radial position of the upright rod is disposed between the cross bar and the slide.
9. The air-assisted variable rate sprayer of claim 7 wherein the air-assisted distance is from 0 to 7 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921221401.4U CN210299219U (en) | 2019-07-30 | 2019-07-30 | Air-assisted variable spraying machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921221401.4U CN210299219U (en) | 2019-07-30 | 2019-07-30 | Air-assisted variable spraying machine |
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| CN210299219U true CN210299219U (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110250149A (en) * | 2019-07-30 | 2019-09-20 | 南京林业大学 | A kind of wind spraying aid type variable rate spray machine |
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2019
- 2019-07-30 CN CN201921221401.4U patent/CN210299219U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110250149A (en) * | 2019-07-30 | 2019-09-20 | 南京林业大学 | A kind of wind spraying aid type variable rate spray machine |
| CN110250149B (en) * | 2019-07-30 | 2024-03-22 | 南京林业大学 | Air-assisted variable spraying machine |
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