Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a machine-mounted orchard pesticide spraying device and a using method thereof, which can automatically adjust the pesticide spraying time according to the spatial distribution of fruit trees, avoid invalid pesticide spraying in places without trees, greatly reduce the loss of pesticides and effectively reduce the environmental pollution degree; when spraying medicine to the fruit tree, can initiatively exert wind-force disturbance to the fruit tree branch, make the liquid medicine fog drip that sprays simultaneously take on the electric charge, and then make the liquid medicine can be even spray the inlayer and the skin of fruit tree, avoid the not enough condition of application of medicine of fruit tree inlayer branch and leaf to appear, guarantee that whole fruit tree can all realize the normal performance of drug effect.
In order to achieve the purpose, the invention adopts the following technical scheme: a machine-mounted orchard pesticide spraying device comprises a wheel-type chassis, a liquid medicine storage box, a liquid pump, an electromagnetic valve group, an atomizing nozzle, a nozzle bracket, an infrared detector and a detector bracket; the wheel type chassis is connected and hung at the tail part of the tractor, and the wheel type chassis follows the tractor; the liquid medicine storage tank and the liquid pump are both arranged on the wheel type chassis; a lifting adjusting cylinder is vertically and fixedly arranged on the wheel type chassis, the nozzle support is arranged at the top of a piston rod of the lifting adjusting cylinder, and the height position of the nozzle support is adjusted through the expansion of the piston rod of the lifting adjusting cylinder; the number of the atomizing nozzles is a plurality, and the atomizing nozzles are uniformly distributed along the nozzle support in the vertical direction; the nozzle support is made of a hollow rod, a liquid outlet of the liquid medicine storage box is communicated with a liquid inlet of the liquid pump through a pipeline, a liquid outlet of the liquid pump is communicated with the atomizing nozzle through an electromagnetic valve group, and a pipeline between the electromagnetic valve group and the atomizing nozzle penetrates through the hollow nozzle support rod body; the detector support is vertically and fixedly arranged on the wheel type chassis, the number of the infrared detectors is multiple, the infrared detectors are uniformly distributed along the detector support in the vertical direction, and the infrared detectors are used for scanning and detecting the fruit tree plants.
An electric swing joint is arranged between the atomizing nozzle and the nozzle bracket, and the atomizing nozzle adjusts the liquid medicine spraying angle through the electric swing joint.
A high-voltage electrostatic generator is arranged on the wheel type chassis, a metal electrode ring is arranged in front of a nozzle of the atomizing nozzle, the metal electrode ring is connected with a negative electrode of the high-voltage electrostatic generator, a positive electrode of the high-voltage electrostatic generator is grounded, the atomizing nozzle is grounded, and a non-uniform electric field is formed between the metal electrode ring and the atomizing nozzle; and the metal electrode ring, a lead in front of the negative electrode of the high-voltage electrostatic generator, a grounding wire of the positive electrode of the high-voltage electrostatic generator and a grounding wire of the atomizing nozzle all penetrate through the hollow nozzle support rod body.
An axial flow fan is erected on the wheel type chassis behind the atomizing nozzle, and wind power output by the axial flow fan disturbs the fruit tree branches and leaves.
The detector support sets up to two, and two detector supports are for tractor advancing direction symmetric distribution in wheeled chassis left and right sides, and all infrared detector that are located on the left side detector support all face tractor advancing direction's left side, and all infrared detector that are located on the right side detector support all face tractor advancing direction's right side.
The nozzle support sets up to two, and two nozzle support bottoms link firmly together through a switching horizontal pole, and two nozzle support pass through the switching horizontal pole to be installed at the piston rod top of lift adjustment cylinder, and the spout of all atomizing nozzles that is located on the nozzle support of left side all faces the left side of tractor advancing direction, and the spout of all atomizing nozzles that is located on the nozzle support of right side all faces the right side of tractor advancing direction.
The use method of the machine-mounted orchard pesticide spraying device comprises the following steps:
the method comprises the following steps: starting the tractor to enable the tractor to run in a channel between two rows of fruit trees at a constant speed;
step two: starting an infrared detector to perform real-time scanning detection on fruit tree plants on the left side and the right side of the tractor;
step three: starting a high-voltage electrostatic generator to form a non-uniform electric field between the metal electrode ring and the atomizing nozzle;
step four: when the infrared detector does not detect the existence of a fruit tree plant in the running process of the tractor, the detection position is in a gap between two fruit trees, and the liquid pump is not started at the moment; when the infrared detector detects that a fruit tree plant appears in front of the infrared detector, executing a fifth step:
step five: starting a liquid pump, enabling the liquid medicine in a liquid medicine storage box to sequentially enter an atomizing nozzle through the liquid pump and an electromagnetic valve group, and spraying the liquid medicine outwards in a spraying mode through the atomizing nozzle, wherein when the atomized liquid medicine passes through a metal electrode ring, the atomized liquid medicine is charged under the action of a non-uniform electric field;
step six: starting the axial flow fan, disturbing the fruit tree branches and leaves by using the airflow generated by the axial flow fan, and simultaneously enabling the electrically-charged atomized liquid medicine to move to the disturbed fruit tree branches and leaves along with the airflow and uniformly fall onto the surfaces of the fruit tree branches and leaves;
step seven: when the infrared detector detects the existence of the fruit tree plant again, the detection position is moved into the gap between two fruit trees, at the moment, the liquid pump and the axial flow fan are shut down, and the atomizing nozzle stops spraying the liquid medicine;
step eight: and repeating the fourth step to the seventh step to finish the subsequent pesticide application process of the fruit plants.
The invention has the beneficial effects that:
the machine-mounted orchard pesticide spraying device and the using method can automatically adjust the pesticide spraying time according to the spatial distribution of fruit trees, avoid invalid pesticide spraying in places without trees, greatly reduce the loss of pesticides and effectively reduce the environmental pollution degree; when spraying medicine to the fruit tree, can initiatively exert wind-force disturbance to the fruit tree branch, make the liquid medicine fog drip that sprays simultaneously take on the electric charge, and then make the liquid medicine can be even spray the inlayer and the skin of fruit tree, avoid the not enough condition of application of medicine of fruit tree inlayer branch and leaf to appear, guarantee that whole fruit tree can all realize the normal performance of drug effect.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 3, a machine-mounted orchard pesticide spraying device comprises a wheel-type chassis 1, a liquid medicine storage box 2, a liquid pump 3, an electromagnetic valve group 10, an atomizing nozzle 4, a nozzle bracket 5, an infrared detector 6 and a detector bracket 7; the wheel type chassis 1 is connected and hung at the tail part of the tractor 8, and the wheel type chassis 1 follows the tractor 8; the liquid medicine storage tank 2 and the liquid pump 3 are both arranged on the wheel type chassis 1; a lifting adjusting cylinder 9 is vertically and fixedly arranged on the wheel type chassis 1, the nozzle support 5 is arranged at the top of a piston rod of the lifting adjusting cylinder 9, and the height position of the nozzle support 5 is adjusted by the extension and contraction of the piston rod of the lifting adjusting cylinder 9; the number of the atomizing nozzles 4 is a plurality, and the atomizing nozzles 4 are uniformly distributed along the nozzle support 5 in the vertical direction; the nozzle support 5 is made of a hollow rod, a liquid outlet of the liquid medicine storage box 2 is communicated with a liquid inlet of the liquid pump 3 through a pipeline, a liquid outlet of the liquid pump 3 is communicated with the atomizing nozzle 4 through an electromagnetic valve group 10, and a pipeline between the electromagnetic valve group 10 and the atomizing nozzle 4 penetrates through the hollow nozzle support 5 rod body; the detector support 7 is vertically and fixedly arranged on the wheel type chassis 1, the infrared detectors 6 are a plurality in number, the infrared detectors 6 are uniformly distributed along the detector support 7 in the vertical direction, and the infrared detectors 6 are used for scanning and detecting the fruit tree plants.
An electric swing joint is arranged between the atomizing nozzle 4 and the nozzle bracket 5, and the atomizing nozzle 4 adjusts the liquid medicine spraying angle through the electric swing joint.
A high-voltage electrostatic generator 11 is arranged on the wheel type chassis 1, a metal electrode ring 12 is arranged in front of a nozzle of the atomizing nozzle 4, the metal electrode ring 12 is connected with a negative electrode of the high-voltage electrostatic generator 11, a positive electrode of the high-voltage electrostatic generator 11 is grounded, the atomizing nozzle 4 is grounded, and a non-uniform electric field is formed between the metal electrode ring 12 and the atomizing nozzle 4; the metal electrode ring 12 and a lead in front of the negative electrode of the high-voltage electrostatic generator 11, a grounding wire of the positive electrode of the high-voltage electrostatic generator 11 and a grounding wire of the atomizing nozzle 4 all penetrate through the hollow nozzle support 5 rod body.
An axial flow fan 13 is erected on the wheel type chassis 1 behind the atomizing nozzle 4, and the wind power output by the axial flow fan 13 disturbs the fruit tree branches and leaves.
The two detector supports 7 are symmetrically distributed on the left side and the right side of the wheeled chassis 1 relative to the advancing direction of the tractor 8, all the infrared detectors 6 on the left detector support 7 face the left side of the advancing direction of the tractor 8, and all the infrared detectors 6 on the right detector support 7 face the right side of the advancing direction of the tractor 8.
Nozzle support 5 establishes to two, and two nozzle support 5 bottoms link firmly together through a switching horizontal pole 14, and two nozzle support 5 are installed at the piston rod top of lift adjustment cylinder 9 through switching horizontal pole 14, and the spout of all atomizing nozzle 4 that is located on left side nozzle support 5 all faces the left side of tractor 8 advancing direction, and the spout of all atomizing nozzle 4 that is located on right side nozzle support 5 all faces the right side of tractor 8 advancing direction.
The use method of the machine-mounted orchard pesticide spraying device comprises the following steps:
the method comprises the following steps: starting the tractor 8 to enable the tractor 8 to run in a channel between two rows of fruit trees at a constant speed;
step two: starting the infrared detector 6 to perform real-time scanning detection on fruit tree plants on the left side and the right side of the tractor 8;
step three: starting the high-voltage electrostatic generator 11 to form a non-uniform electric field between the metal electrode ring 12 and the atomizing nozzle 4;
step four: when the tractor 8 is running, the liquid pump 3 is not started when the infrared detector 6 does not detect the existence of a fruit tree plant, which indicates that the detection position is in the gap between two fruit trees; when the infrared detector 6 detects that a fruit tree plant appears in front of the infrared detector, executing the fifth step:
step five: the liquid pump 3 is started, the liquid medicine in the liquid medicine storage box 2 sequentially passes through the liquid pump 3 and the electromagnetic valve group 10 to enter the atomizing nozzle 4, the liquid medicine is sprayed out by the atomizing nozzle 4 in a spraying mode, and when the atomized liquid medicine passes through the metal electrode ring 12, the atomized liquid medicine is charged under the action of a non-uniform electric field;
step six: the axial flow fan 13 is started, the airflow generated by the axial flow fan is used for disturbing the branches and leaves of the fruit trees, and meanwhile, the electrically charged atomized liquid medicine moves to the disturbed branches and leaves of the fruit trees along with the airflow and uniformly falls on the surfaces of the branches and leaves of the fruit trees;
step seven: when the infrared detector 6 detects the existence of the fruit tree plant again, the detection position is moved into the gap between two fruit trees, at the moment, the liquid pump 3 and the axial flow fan 13 are stopped, and the atomizing nozzle 4 stops spraying the liquid medicine;
step eight: and repeating the fourth step to the seventh step to finish the subsequent pesticide application process of the fruit plants.
In the embodiment, three infrared detectors 6 are uniformly distributed on each detector bracket 7, and the optical wave band of each detector bracket is a near infrared line segment and is used for detecting the distribution conditions of high, medium and low fruit tree branches; three atomizing nozzles 4 are uniformly distributed on the nozzle bracket 5 and used for uniformly applying the pesticide to the high, medium and low fruit tree branches.
In order to achieve accurate pesticide application, when a relatively obvious height difference exists between the opposite fruit trees, for the fruit trees with shorter heights, if the height of the infrared detector 6 at the highest position exceeds the crown of the fruit tree, the atomizing nozzles 4 at the middle and lower positions are started in the pesticide application process; for the fruit trees with higher height, if the bottom layer of the crown is higher than the infrared detector 6 at the lowest position, only the atomizing nozzles 4 at the high and middle positions need to be started, thereby avoiding the waste of liquid medicine.
The infrared detector 6 used in this embodiment is composed of an infrared emitting module, an infrared receiving module and a signal processing module, when the infrared detector 6 works, firstly, the infrared emitting module emits infrared rays outwards, after the infrared emitting module irradiates branches and leaves of fruit trees, the reflected light rays return to the infrared receiving module, at this time, the signal processing module processes the received reflected information at the first time and feeds the information back to the controller, then the controller sends a starting instruction to the liquid pump 3, the controller adopts a micro single chip microcomputer, the micro single chip microcomputer generates a coding signal, the infrared emitting module is driven by the coding signal to send out an infrared signal with the coding signal, and the reflection signal processed by the amplifying circuit can be detected in real time, the coding signal can ensure that a plurality of detectors with the same type work simultaneously and the same type without mutual interference, and has the working frequencies are consistent, High reliability and low power consumption.
In the embodiment, the aperture range of the nozzle of the atomizing nozzle 4 is 0.5 mm-1 mm, the diameter of the metal electrode ring 12 is 30 mm-50 mm, the material of the metal electrode ring 12 is stainless steel, and the voltage range of the high-voltage electrostatic generator 11 is 0-10 kV; the distance between the metal electrode ring 12 and the atomizing nozzle 4 needs to be actually determined according to the size of the atomizing angle, so as to prevent the atomized liquid medicine from being sprayed onto the metal electrode ring 12, and the charging effect is not affected.
The atomized liquid medicine can be effectively attached to the surfaces of the fruit branches and leaves by means of static electrification, so that the effective deposition rate of the liquid medicine fog drops is further improved, and pesticide waste and environmental pollution caused by the drift of the fine liquid medicine fog drops are reduced. In addition, the charged atomized liquid medicine also has a tip effect and a wrapping effect, the tip effect can enable the liquid medicine fog drops to be deposited on the surfaces of the branches, and the wrapping effect can enable the liquid medicine fog drops to be deposited on the front surface and the back surface of the blade. The charged liquid medicine fog drops can be fully adsorbed on the surface of a plant after moving directionally and tending to fruit tree plants, the deposition rate is obviously improved, a large amount of charged liquid medicine fog drops are attached to the surface of the plant and uniformly cover the surface of the plant, the settling speed is high, the deposition amount of the back of the leaf is especially improved, and the drifting and the loss of the liquid medicine fog drops are effectively reduced. Compared with the traditional liquid medicine spraying mode, the pesticide utilization rate under the electrostatic spraying of the liquid medicine can be improved to more than 90 percent, and the electrostatic oil agent has affinity to the wall (wax layer) of the pest body, is easy to penetrate through the wall of the pest body to enter the pest body and shows rapid poisoning; in addition, the hydrolysis, photolysis and oxidative degradation processes of the pesticide are delayed, so that the pesticide effect is prolonged.
However, there is a certain disadvantage in electrostatic spraying of the liquid medicine, namely that the penetration of the charged fog drops to the canopy of the branches and leaves of the fruits is poor, and in order to ensure sufficient penetration and effective adhesion of the inner branches and leaves of the fog drops, the axial flow fan 13 is additionally arranged, the branches are disturbed by the airflow generated by the axial flow fan, and meanwhile, the fog drops can have stronger penetration under the action of the airflow. In this embodiment, the diameter of the impeller of the axial flow fan 13 is 630mm, and the operating speed is 2000 r/min; in order to ensure the stable spraying of the liquid medicine droplets, the liquid pump 3 adopts a diaphragm pump, which has strong working stability.
For the higher fruit tree of whole crown, in order to satisfy the requirement of giving medicine to the poor free of charge to further enlarge the operation scope, need wholly raise nozzle holder 5, specifically upwards stretch out the realization through the piston rod of lift adjustment cylinder 9, simultaneously for making the droplet spray angle most suitable, can realize the adjustment of atomizing nozzle 4 every single move angle and horizontal pivot angle through the electronic pendulum rotary joint between atomizing nozzle 4 and nozzle holder 5. In order to avoid that the atomizing nozzle 4 is not blocked during the operation, multiple filtration can be arranged in the spraying pipeline. When the liquid medicine in the liquid medicine storage tank 2 is replaced by liquid fertilizer, fertilization with the same effect can be realized.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.