CN106359341B

CN106359341B - Special pesticide applying machine for cotton

Info

Publication number: CN106359341B
Application number: CN201610722755.1A
Authority: CN
Inventors: 解禄观; 解晓薇
Original assignee: Nantong Huanghai Chemical Machinery Co ltd
Current assignee: Nantong Huanghai Chemical Machinery Co ltd
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2020-07-07
Anticipated expiration: 2036-08-25
Also published as: CN106359341A

Abstract

The invention provides a special pesticide applying machine for cotton, which comprises a pesticide applying machine frame, and a fan, a pesticide box, a fan power system, a pesticide pump and a spraying mechanism which are arranged on the pesticide applying machine frame, wherein the fan power system drives the fan to operate, the pesticide box is communicated with the pesticide pump, and the pesticide pump is communicated with the spraying mechanism through a spraying pipeline, the spraying mechanism comprises an upper spraying mechanism and a plurality of groups of lower spraying mechanisms, the upper spraying mechanism is communicated with the pesticide pump, the lower spraying mechanism is communicated with the pesticide pump and the fan, one side of each group of lower spraying mechanisms is provided with a distributor, and a hanging spraying device is connected between two adjacent groups of lower spraying mechanisms. According to the special pesticide applying machine for cotton, provided by the invention, high-pressure airflow is blown out of the air duct, a boosting effect is realized in the diffusion process of fog drops, and the fog drops can better penetrate through dense branches and leaves of cotton.

Description

Special pesticide applying machine for cotton

Technical Field

The invention relates to the technical field of agricultural machinery, in particular to a special pesticide applying machine for cotton, which improves pesticide applying effect.

Background

Cotton is an important economic crop in China, and for the application of cotton fields, a pure pressure atomizing sprayer is generally used for applying the pesticide in China, the pesticide is sprayed downwards from the upper part of a cotton canopy, and the pesticide cannot penetrate through a dense cotton leaf canopy, so that the pesticide deposition amount of the middle lower part of the canopy is very small, and the pest control effect is poor.

In order to solve the problems, an application machine which sends out medicine fog drops in an air conveying mode is gradually developed in China.

For example, chinese patent CN104012508A discloses a high-efficiency spraying machine suitable for cotton field, which comprises: the medicine box is connected with the inlet end of the medicine pump through a pipeline, and the fan power system is in transmission connection with the fan through a belt pulley rotating mechanism; the plant spraying device is characterized in that the bracket is provided with a spray head mounting bracket, a plurality of line dividers, direct injection cylinders and inclined injection cylinders are arranged on the spray head mounting bracket, the line dividers are respectively fixed on the spray head mounting bracket, the direct injection cylinders are fixedly arranged in the line dividers, the upper ends of the direct injection cylinders are fixed on the spray head mounting bracket, and air outlets of the direct injection cylinders face plants; the inclined air cylinders are fixed on the spray head mounting bracket, the inclined air cylinders are arranged above the direct spray cylinders, and air outlets of the inclined air cylinders face plants respectively; the air outlets of the direct injection barrels and the inclined injection barrels are respectively provided with a medicine inlet spray head, and the medicine inlet spray heads are respectively connected with the liquid outlet of the medicine pump through pipelines; the fan with each directly spouts and set up the air curtain between the section of thick bamboo, the oblique section of thick bamboo that spouts, the air intake of air curtain with the air outlet of fan is connected, the air outlet of air curtain is respectively in each directly spout a section of thick bamboo, spout a section of thick bamboo to one side and connect.

Still like chinese patent CN105230596A discloses a high-efficient cotton sprayer, including sprayer frame, medical kit, agitating unit, overflow arrangement, the medical kit input all links to each other with agitating unit and overflow arrangement, the medical kit output passes through the liquid medicine pipeline with the sprayer frame and links to each other, the sprayer frame articulates on the tractor through hydraulic pressure linkage, its characterized in that: the sprayer frame includes air curtain, spray lance and shower nozzle, air curtain axis top is provided with the fan, the air curtain is provided with a plurality of air outlets, the air outlet links to each other with the spray lance, the inside shower nozzle that is provided with of air outlet.

The technical scheme disclosed by the two Chinese patents adopts an air curtain structure, the spraying area of the liquid medicine is enlarged in an air conveying mode, and the pesticide application efficiency is improved. However, the two technical solutions disclosed in the above two chinese patents have some drawbacks, such as:

1. through investigation, the areas with the densest cotton branches and leaves are distributed at the height of 250-700 mm from the ground, and the distribution of the cotton leaves is different in the range, so that the required amount of liquid medicine needs to be adjusted appropriately to reasonably distribute the pesticide, the pesticide application efficiency is improved on the basis of saving the cost, and the existing air-assisted spraying machines all adopt fan-shaped spray heads, so that the air mist channel is narrow, and particularly when the blades shield the channel, the uniform pesticide application effect of the air mist is inevitably influenced, and the pesticide application effect is influenced.

2. The two Chinese patent publications respectively comprise an inclined spraying cylinder or a second air outlet which is positioned on the upper layer, and both adopt an air conveying mode. However, in general, the concentration of branches and leaves at the top layer of cotton is relatively low, the application effect can be satisfied by adopting a common spraying method, and if the air blowing mode is also adopted, partial air flow can be shared, so that the air flow in the lower air duct is weakened and not concentrated enough, and the lower spraying effect is weakened.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides the special cotton pesticide applying machine for improving the pesticide applying effect.

The invention provides a special cotton pesticide applying machine which comprises a pesticide applying machine frame, and a fan, a pesticide box, a fan power system, a pesticide pump and a spraying mechanism which are arranged on the pesticide applying machine frame, wherein the fan power system drives the fan to operate, the pesticide box is communicated with the pesticide pump, and the pesticide pump is communicated with the spraying mechanism through a spraying pipeline, wherein the spraying mechanism comprises an upper spraying mechanism and a plurality of groups of lower spraying mechanisms, the upper spraying mechanism is communicated with the pesticide pump, the lower spraying mechanism is communicated with the pesticide pump and the fan, one side of each group of lower spraying mechanisms is provided with a distributor, and a hanging spraying device is connected between two adjacent groups of lower spraying mechanisms.

In some embodiments, the machine frame of the pesticide application machine comprises a machine frame body and a multi-section type spraying cantilever, the spraying cantilever is transversely connected below one side of the machine frame body, the fan, the pesticide box, the fan power system and the pesticide pump are respectively fixed on the machine frame body, the fan is positioned above the spraying cantilever, and the spraying mechanisms are distributed on the spraying cantilever.

In some embodiments, the upper spraying mechanism comprises an upper spraying pipeline and an upper spray head, the upper spraying pipeline is connected to the outlet end of the medicine pump, the upper spraying pipeline extends along the length direction of the spraying cantilever, the upper spray head is distributed on the pipe wall of the upper spraying pipeline and is communicated with the upper spraying pipeline, and the upper spray head sprays downwards in an inclined mode.

In some embodiments, each set of lower spray mechanisms comprises: the spray device comprises an air duct, an air duct outlet and a lower-layer spray head structure, wherein the air duct is movably connected below a spray cantilever through a locking mechanism, the air duct is uniformly arranged and is vertical to the spray cantilever, the air duct outlet is connected with the tail end of the air duct, and the lower-layer spray head structure is fixed at the air duct outlet; each air duct is communicated with the air outlet of the fan through an air curtain, and the lower-layer spray head structure is communicated with the upper-layer spray pipeline through a liquid guide pipe.

In some embodiments, the air duct outlet comprises an air duct connecting part and a diffusing part, the air duct connecting part is connected with the tail end of the air duct, the diffusing part is of a horn-shaped structure, the diffusing part comprises a diffusing opening, the diffusing opening is positioned on the side surface of the diffusing part, the outline of the diffusing opening is rectangular, the diffusing opening consists of four guide walls which are flared and diffuse outwards and are respectively an upper guide wall, a lower guide wall and two side guide walls, the two side guide walls are arc-shaped surfaces, the inner wall of the tail end of the diffusing opening forms an included angle with a vertical plane where the spraying cantilever is positioned, the included angle is 0-30 degrees, the inner wall of the lower guide wall forms an included angle with the vertical plane where the spraying cantilever is positioned, the included angle is 60-80 degrees, the inner wall of the upper guide wall forms an included angle with the vertical plane where the spraying cantilever is positioned, and the included angle is 53-.

In some embodiments, a guide plate is embedded in the divergent opening, and the guide plate is seamlessly embedded with the inner wall of the divergent opening; the guide plate comprises at least one guide plate assembly, the guide plate assembly comprises an arc-shaped partition plate, an S-shaped partition plate and a plurality of fins, the arc-shaped partition plate and the S-shaped partition plate are transversely arranged in the divergent port, the fins are vertically arranged in the divergent port, and the fins are vertically connected with the arc-shaped partition plate and the S-shaped partition plate to form a plurality of sub-channels in the divergent port; the arc-shaped partition plate is positioned above the S-shaped partition plate, and the fins are uniformly distributed in a fan shape towards the outer side direction of the divergent opening.

In some embodiments, the arc-shaped partition plate is bent upwards to form a spoon shape, and the included angle between one end of the arc-shaped partition plate positioned outside the diverging opening and the horizontal plane is 15-35 degrees, and the included angle between one end of the S-shaped partition plate positioned outside the diverging opening and the horizontal plane is 15-40 degrees and lower than the end positioned inside the diverging opening.

In some embodiments, the lower spray head structure comprises a spray bar and at least one group of lower spray heads, the spray bar is communicated with the upper spray pipeline through a liquid guide pipe, and the lower spray heads are fixed on the outer wall of the spray bar and are communicated with the spray bar; each group of lower-layer nozzles comprise at least two lower-layer nozzles, each group of lower-layer nozzles are distributed around the circumferential direction of the spray rod and have a common circle center, and the lower-layer nozzles are all located in the area of the divergent opening.

In some embodiments, the spray nozzle comprises two groups of lower-layer spray nozzles, one group of lower-layer spray nozzles is positioned at the end part of the lower end of the spray rod, the other group of lower-layer spray nozzles is positioned in the middle of the spray rod, the distance between the two groups of lower-layer spray nozzles is 100-200 mm, each group of lower-layer spray nozzles comprises two lower-layer spray nozzles, the included angle between the two lower-layer spray nozzles on each group is 90 degrees, the included angle between the two lower-layer spray nozzles on each group and a divergent opening plane is equal, the two lower-layer spray nozzles at the end part of the lower end of the spray rod are perpendicular to the spray rod, an included angle α exists between the plane where the two lower.

In some embodiments, the upper layer spray head is a hollow conical spray head, the spray cone angle of the spray head is 60-100 degrees, and the pore size of the spray head is 1.0-1.5 mm; the lower layer spray head is a hollow conical spray head, and the spray cone angle of the spray head is 60-100 degrees.

Compared with the prior art, the special cotton pesticide applying machine disclosed by the invention has the following advantages:

first, the cotton special pesticide application machine provided by the invention has more reasonable fog drop distribution uniformity and obviously increased fog drop amount.

Secondly, according to the special pesticide application machine for cotton, provided by the invention, high-pressure airflow is blown out of the air duct, a boosting effect is achieved in the diffusion process of fog drops, and the fog drops can better penetrate through dense cotton branches and leaves.

The invention further provides a special cotton pesticide applying machine, which adopts the hollow conical spray heads to increase the pesticide applying range, the spray areas of the upper spray head and the lower spray head in the same vertical plane have an overlapping area, and the overlapping area corresponds to the dense branch and leaf area of cotton, so that the pesticide applying effect in the overlapping area can be improved.

According to the special pesticide applying machine for cotton, the upper spraying mechanism can meet the pesticide applying effect by adopting a common spraying method, so that air flow is concentrated to the lower spraying mechanism to improve the pesticide applying effect.

In the short time of separating dense branches and leaves by the row separator, the wind field disturbs the leaves, so that the front and back surfaces of the leaves are sufficiently and uniformly stained with pesticide.

The invention provides a special pesticide applying machine for cotton, which is provided with a hanging and spraying device, wherein the hanging and spraying device is specially used for applying pesticide to cotton in a seedling period and is convenient to disassemble. Meanwhile, the spraying width of the hanging and spraying device is adjustable, so that the spraying width of the hanging and spraying device can be adjusted according to the actual width of branches and leaves of cotton seedlings, so that the pesticide drops are sprayed on the branches and leaves of the cotton to the maximum extent, the amount of pesticide liquid sprayed on soil is reduced, and the environmental pollution is reduced.

Seventhly, according to the special pesticide applying machine for cotton, provided by the invention, the multi-section spraying cantilevers can be folded at two sides of the machine frame body, so that the occupied space is reduced, and the walking is facilitated.

Drawings

FIGS. 1 and 2 are schematic structural views of a cotton-dedicated application machine provided by the invention;

FIG. 3 is a schematic structural view of an air duct and an air duct outlet in the special cotton pesticide applying machine provided by the invention;

FIG. 4 is a schematic structural view of an upper deflector assembly in the cotton special-purpose pesticide applying machine provided by the invention;

FIG. 5 is a schematic structural view of a lower guide plate assembly in the cotton special-purpose pesticide applying machine provided by the invention;

FIG. 6 is a schematic structural diagram of a lower layer spray head structure in the cotton special-purpose pesticide applying machine provided by the invention;

FIG. 7 is a top view of a barrel outlet and lower sprayer structure of a cotton-dedicated applicator according to the present invention;

FIG. 8 is a schematic structural view of a distributor and a lower-layer spraying mechanism in the special cotton pesticide applying machine provided by the invention;

FIG. 9 is a schematic structural diagram of a hanging spraying device in the cotton special-purpose pesticide applying machine provided by the invention.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 to 9 schematically show a cotton-dedicated applicator provided according to an embodiment of the present invention.

As shown in figures 1 and 2, the invention discloses an applicator special for cotton, which comprises an applicator frame 1, a fan 2, a medicine box 3, a fan power system, a medicine pump and a spraying mechanism 4.

Wherein, the machine frame 1 of the medicine applying machine comprises a machine frame body 11 and a multi-section type spraying cantilever 12, the machine frame body 11 is a rectangular frame structure, the multi-section type spraying cantilever 12 is transversely connected below one side of the machine frame body 11, preferably, the multi-section type spraying cantilever 12 is at least three sections, in the embodiment of the invention, the five-section type spraying cantilever 12 is taken as an example for illustration, the five-section type spraying cantilever 12 is connected end to end, and the two adjacent sections of spraying cantilever 12 are rotatably connected, one section of spraying cantilever 12 in the middle position is fixedly connected with the machine frame body 11, so that the whole multi-section type spraying cantilever 12 is fixed below one side of the machine frame body 11, and the other four sections of spraying cantilevers 12 are driven to move by a hydraulic mechanism and can be. Preferably, the multi-section type spray boom 12 is connected to a lower side of one side of the frame body 11 by a hydraulic mechanism, and thus the overall height of the multi-section type spray boom 12 can be adjusted by the hydraulic mechanism.

As shown in fig. 1 and 2, the fan 2, the medicine box 3, the fan power system and the medicine pump are respectively fixed on the rack body 11 of the medicine application machine rack 1, specifically, as shown in fig. 1 and 2, the medicine box 3 is fixed in the middle of the rectangular frame of the rack body 11, the fan 2 is fixed on one side of the rack body 11 and is located above the spraying cantilever 12, and the air outlet of the fan 2 faces downward to the spraying cantilever 12. The fan power system is in transmission connection with the fan 2 through a belt pulley transmission mechanism to drive the fan 2 to operate, and the outlet of the medicine box 3 is connected with the inlet end of the medicine pump through a pipeline.

As shown in fig. 1 and 2, the spraying mechanism 4 is distributed on the spraying cantilever 12. The spraying mechanism 4 includes an upper spraying mechanism 41 and a plurality of lower spraying mechanisms 42.

As shown in fig. 1 and 2, the upper spraying mechanism 41 includes an upper spraying pipe 411 and a plurality of upper spray heads (not shown) distributed on the upper spraying pipe 411 and communicated with the upper spraying pipe 411, the upper spray heads are uniformly distributed, and the upper spraying pipe 411 is connected to the outlet end of the drug pump. As an aspect of the present invention, the upper layer nozzle is a hollow conical nozzle, the spray cone angle of the nozzle is 60 ° to 100 °, in this embodiment of the present invention, the optimum cone angle of 80 ° is taken as an example, the nozzle aperture size is 1.0mm to 1.5mm, and in this embodiment of the present invention, the optimum aperture size of 1.0mm is taken as an example. The upper spray head is connected on the pipe wall of the upper spray pipeline 411 and is communicated with the upper spray pipeline 411, the upper spray pipeline 411 is fixed on the upper edge of the spray cantilever 12 and extends along the length direction of the spray cantilever 12, and the spray direction of the upper spray head is inclined and downward and forms an angle with the vertical direction. In the above-mentioned structure, adjusted the height of upper spraying mechanism 41, made upper spraying mechanism 41 be absorbed in with give the cotton top layer branch and leaf pesticide application, because the branch and leaf concentration on cotton top layer is more rare, consequently directly adopt the medicine pump to carry out pure pressure atomization and apply medicine just enough to satisfy the effect of applying medicine, changed the aperture size of upper shower nozzle simultaneously, let the droplet even, improve the effect of applying medicine.

As shown in fig. 1 to 8, each set of lower spraying mechanism 42 includes an air duct 421, an air duct outlet 422, and a lower spraying head structure 423. As shown in fig. 1 to 3, the air duct 421 is a cylindrical tube, the air duct 421 is movably connected below the spraying cantilever 12 through a locking mechanism, the air ducts 421 are uniformly distributed, the air duct 421 is vertically arranged and vertically connected with the spraying cantilever 12, and the height of the air duct 421 is adjusted through the locking mechanism. In this embodiment of the present invention, the locking mechanism includes a guide block fixed above one side of the air duct 421, a guide sleeve fixed on the spraying cantilever 12, and a lock bolt, the guide block is inserted into the guide sleeve, and a plurality of lock holes are uniformly distributed on the guide block, the lock holes are distributed along the length direction of the guide block, the guide sleeve is provided with a lock hole, and the lock bolt is inserted into the lock holes at the corresponding positions of the guide block and the guide sleeve to fix the air duct 421, and at the same time, the height of the air duct 421 is adjusted. As shown in fig. 1 to 3, the duct outlet 422 includes a duct connecting portion 4221 and a diverging portion 4222, the duct connecting portion 4221 is cylindrical and barrel-shaped, the diverging portion 4222 is in a horn-shaped structure, the diverging portion 4222 includes a horn-shaped diverging opening 4223, the horn-shaped diverging opening 4223 is located on the side surface of the diverging portion 4222, one end of the diverging portion 4222 is communicated with the duct connecting portion 4221, the other end of the diverging portion 4222 is sealed, the duct connecting portion 4221 and the diverging portion 4222 are of an integral structure, and the duct outlet 422 is communicated with the lower end of the duct 421 through the duct connecting portion 4221. As an invention point of the present invention, as shown in fig. 1 to 3, an outer contour of a horn-shaped divergent port 4223 of the divergent portion 4222 is rectangular, the divergent portion 4222 is composed of four guide walls which are flared and outwardly diffused, and respectively includes an upper guide wall, a lower guide wall and two side guide walls, the upper guide wall, the side guide walls, the lower guide wall and the side guide walls are all connected with the air duct connecting portion 4221, and the upper guide wall, the side guide walls, the lower guide walls and the side guide walls are sequentially connected to form the complete horn-shaped divergent port 4223. Preferably, the guide walls at the two sides are arc-shaped surfaces, and the inner wall of the tail end of the guide wall forms an included angle with a vertical plane where the spraying cantilever 12 is located, wherein the included angle is 0-30 degrees; in this embodiment of the present invention, the included angle is 16 ° for illustration; preferably, the inner wall of the lower guide wall forms an included angle with the vertical plane where the spraying cantilever 12 is located, and the included angle is 60-80 degrees; in this embodiment of the present invention, the included angle is illustrated as 68 °; more preferably, the inner wall of the upper guide wall forms an included angle with the vertical plane where the spraying cantilever 12 is located, and the included angle is 53-80 degrees; in this embodiment of the present invention, the included angle is 73 ° as an example.

As another aspect of the present invention, as shown in fig. 3 to 5, a baffle 4224 is embedded in the flared diverging port 4223 of the diverging portion 4222, and the baffle 4224 is seamlessly fitted with the inner wall of the flared diverging port 4223. As shown in fig. 4 and 5, the baffle 4224 includes at least one baffle assembly, and in this embodiment of the present invention, the baffle 4224 includes two baffle assemblies engaged with each other, as shown in fig. 3 to 5, the two baffle assemblies are an upper baffle assembly 2241 and a lower baffle assembly 2242, respectively, and the upper baffle assembly 2241 and the lower baffle assembly 2242 are inserted into the flared diverging port 4223 of the diverging part 4222 in an up-down arrangement. As shown in fig. 3 and 4, the upper baffle assembly 2241 includes a transverse arc partition 2411, the arc partition 2411 is bent upwards to form a spoon shape, as shown in fig. 3 and 5, the lower baffle assembly 2242 includes a transverse S-shaped partition 2421, one end of the S-shaped partition 2421 located outside the divergent opening 4223 is lower than one end located inside the divergent portion 4222, as shown in fig. 3, the arc partition 2411 and the S-shaped partition 2421 vertically divide the divergent portion 4222 into upper, middle and lower 3 sub-passages. Preferably, the included angle between one end of the arc-shaped partition 2411 positioned at the outer side and the horizontal plane is 15-35 degrees, and the included angle between one end of the S-shaped partition 2421 positioned at the outer side and the horizontal plane is 15-40 degrees. In addition, as shown in fig. 3 and 4, the upper baffle assembly 2241 further includes a plurality of upper fins 2412 vertically connected to the arc-shaped partition 2411, the upper fins 2412 are uniformly distributed in a fan shape, and the upper fins 2412 are uniformly distributed in a fan-shaped manner toward the outside of the diverging port 4223, the arc-shaped partition 2411 is vertically connected to the middle of all the upper fins 2412, as shown in fig. 5, the lower baffle assembly 2242 further includes a plurality of lower fins 2422 vertically connected to the S-shaped partition 2421, the lower fins 2422 are uniformly distributed in a fan-shaped manner, and the lower fins 2422 are uniformly distributed in a fan-shaped manner toward the diverging port 4223, and the S-shaped partition 2421 is vertically connected to the middle of all the lower fins 2422. As shown in fig. 3 to 5, the upper fins 2412 and the lower fins 2422 at the corresponding positions are connected one by one, so that after the upper baffle assembly 2241 and the lower baffle assembly 2242 are embedded in the diffusing part 4222, the upper fins 2412 and the lower fins 2422 at the corresponding positions form a whole, and the upper fins 2412 and the lower fins 2422 divide the diffusing part 4222 into a plurality of sub-channels in the horizontal direction. Thus, in the above structure, the curved partitions 2411, S-shaped partitions 2421, upper fins 2412 and lower fins 2422 of the upper and

lower baffle assemblies

2241 and 2242 divide the diverging opening 4223 into a plurality of curved sub-channels.

As another inventive point of the present invention, as shown in fig. 1, 2 and 6, the lower spray head structure 423 is fixed to one side of the air duct 421 and located on one side of the air duct outlet 422 by a fixing member, as shown in fig. 6, the lower spray head structure 423 includes a spray bar 4231 and lower spray heads 4232 fixed to an outer wall of the spray bar 4231 and communicating with the spray bar 4231, as shown in fig. 6, at least one set of lower spray heads 4232 distributed along a length direction of the spray bar 4231 and each set includes at least two lower spray heads 4232, each set of lower spray heads 4232 is distributed circumferentially around the spray bar 4231 and has a common center, the lower spray heads 4232 are located in a region of a divergent port 4223, as preferred, in this embodiment of the present invention, each set of lower spray head structures includes two sets of lower spray heads 4232, one set of lower spray heads 4232 is located at a lower end of the spray bar 4231, the other set of lower spray heads 4232 is located at a distance of 100mm to 200mm, as a preferred embodiment of the invention, the two sets of the lower spray heads 4232 are located at an angle 4232, as further preferred angle, the preferred embodiment, the angle between the two spray bars 4232 and 4232 is represented by a hollow cone 4210 mm, the preferred embodiment of the 4232 located at an angle 426, the middle of the 4232 located at an angle 4210 mm of the upper spray bar 4232 of the middle of the lower spray bar 4232 located at an angle 4231 and 4232 located at an upper spray bar 4210 mm of a hollow plane 4232 of a 4210 angle of a hollow spray head 4232 located at an upper spray head 4223, as a hollow plane 4232 of a 4210 angle of a hollow cone 4232 of a 4220 mm, the middle of a 4232 of a hollow cone 4210 angle of a hollow cone 4232 of.

According to the lower layer spray head structure 423 disclosed by the invention, the optimal distance between the two groups of lower layer spray heads 4232 is 170mm, an included angle of 8 degrees exists between the plane of the two lower layer spray heads 4232 positioned in the middle of the spray rod 4231 and the plane of the two lower layer spray heads 4232 positioned at the lower end part of the spray rod 4231, the included angle between the two lower layer spray heads 4232 on each group is 90 degrees, and meanwhile, the hollow conical spray heads are combined to be adopted, so that the spray areas of the upper and lower layer spray heads 4232 in the same vertical plane have an overlapping area, and the application amount in the overlapping area is twice of that in other application areas, therefore, the application effect in the overlapping area can be improved; in addition, an included angle of 8 degrees is formed between the plane of the two lower layer spray heads 4232 positioned in the middle of the spray rod 4231 and the plane of the two lower layer spray heads 4232 positioned at the lower end of the spray rod 4231, so that an overlapping area is ensured to exist in the spray areas of the upper and lower layer spray heads 4232, and the pesticide application area in the height range is expanded; and the included angle between the two lower layer spray heads 4232 on each group is 90 degrees, so that the application range of the application is expanded while the application amount is improved.

As shown in fig. 1 and fig. 2, the air outlet of the fan 2 is connected to an air curtain (not shown in the figure), the air curtain includes an air inlet and a plurality of air outlets, the number of the air outlets is equal to the number of the air ducts 421, the air inlet of the air curtain is communicated with the air outlet of the fan 2, and the air outlets of the air curtain are communicated with the air ducts 421 in a one-to-one correspondence manner.

In the above structure, the fan power system drives the fan 2 to operate, so as to generate high-pressure air flow, the high-pressure air flow enters each air duct 421 through the air curtain and is discharged from the diverging opening 4223 of the air duct outlet 422, and the high-pressure air flow is discharged after being changed in direction through each arc-shaped sub-channel separated by the guide plate 4224. Through investigation, the areas with the densest cotton branches and leaves are distributed at the height of 250-700 mm from the ground, and in the range, the cotton leaves are distributed in different amounts, while the branches and leaves at the top layer of the cotton are less dense, and the application effect can be satisfied by adopting a common spraying method, so that the method of subtracting the top air fog superposition from the special application machine for cotton disclosed by the invention concentrates air flow to the lower spraying mechanism 42, and improves the application effect. As shown in fig. 1, 2 and 7, the liquid medicine in the medicine box 3 enters a medicine pump, high-pressure liquid medicine is formed by the action of the medicine pump, the high-pressure liquid medicine enters an upper-layer spraying pipeline 411, a part of liquid medicine is sprayed out from an upper-layer sprayer, and the liquid medicine is applied to sparser branches and leaves in the range of 200mm-250mm on the top layer of the cotton; the other part of the liquid medicine enters the lower layer spray head structure 423 from the liquid guide pipe and is sprayed out from the lower layer spray head 4232, because the lower layer spray head structure 423 is fixed at the diverging port 4223 of the air duct outlet 422, the high-pressure liquid medicine sprayed out from the lower layer spray head 4232 is rapidly atomized under the pushing of the high-pressure airflow discharged from the diverging port 4223 and is dispersed along with the high-pressure airflow, the flow guiding direction of the high-pressure airflow ensures that the high-pressure liquid medicine and the high-pressure airflow are consistent according to the spraying direction of the high-pressure liquid medicine to form a liquid medicine atomizing area, the dense branches and leaves at the height of 250mm-700mm from the ground in the atomizing area are subjected to targeted pesticide application, because the branches and leaves at the middle position in the area are the densest, a hollow conical spray head is adopted, an overlapping area exists in the spraying areas of the upper and lower layer spray heads 4232 in the same vertical plane, thereby improving the effect of pesticide application. Because multistage formula spraying cantilever 12 passes through hydraulic pressure mechanism to be connected in frame body 11 one side below, the whole height of multistage formula spraying cantilever 12 is adjusted to accessible hydraulic pressure mechanism, and dryer 421 and spraying cantilever 12 swing joint, its height also can be adjusted simultaneously, consequently, can adjust the height of upper spraying mechanism 41 and lower floor's spraying mechanism 42 according to the actual height of cotton to, improve the effect of giving medicine to poor free of charge.

As shown in fig. 8, preferably, a splitter 5 is further connected to the air duct 421, the splitter 5 is located at the back of the lower spray head structure 423, the cross section of the splitter 5 is "V" shaped, and the air duct 421 is located at the middle of the "V" shaped splitter 5, as shown in fig. 1, and preferably, the directions of two adjacent lower spray mechanisms 42 and the splitter 5 connected thereto are opposite. The special cotton pesticide applying machine disclosed by the invention is provided with the line divider 5, the line divider 5 moves between the cotton planting lines in the moving process of the special cotton pesticide applying machine, so that the resistance is reduced, meanwhile, at the moment that cotton branches and leaves are separated and then folded again, the pesticide liquid can conveniently enter the deep parts of the branches and leaves through gaps, so that the pesticide applying effect is improved, and meanwhile, in the short time that the dense branches and leaves are separated by the line divider 5, a wind field disturbs the leaves, so that the front side and the back side of the leaves are fully and uniformly stained with pesticide.

As shown in fig. 1, 2 and 9, as a further preferred option, the cotton-dedicated applicator disclosed by the present invention can be optionally provided with a hanging spray device 6, the hanging spray device 6 is fixed between two adjacent air ducts 421 through a connecting device, the hanging spray device 6 is perpendicular to the spray cantilever 12, and the spray head of the spray cantilever 12 faces vertically downwards. In this embodiment of the present invention, a connection block 61 is fixed at the end of the overhead spraying device 6, a first connection hole is formed in the connection block 61, a connection sleeve for allowing the connection block 61 to pass through is fixed at a corresponding position of the spraying cantilever 12, a second connection hole corresponding to the connection block is formed in the connection sleeve, the connection block 61 at the end of the overhead spraying device 6 is inserted into the connection sleeve, and a connection bolt is inserted into the first connection hole in the connection block 61 and the second connection hole in the connection sleeve, so that the fixed connection is realized. In the special cotton pesticide applying machine disclosed by the invention, the hanging spraying device 6 is specially used for applying pesticide to cotton in seedling stage, and pesticide is sprayed from the upper part of cotton seedling, so that the hanging spraying device adopts a detachable connection mode and is convenient to detach. As a further preference, in this embodiment of the present invention, the width of the spraying width of the overhead spraying device 6 is adjustable, and therefore, the width of the spraying width of the overhead spraying device 6 can be adjusted according to the actual width of the branches and leaves of the cotton seedlings, so that the chemical drops can be sprayed on the branches and leaves of the cotton as much as possible, the amount of the chemical liquid sprayed on the soil is reduced, and the environmental pollution is reduced.

While the foregoing specification illustrates and describes the preferred embodiments of this invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A special cotton pesticide applying machine comprises a pesticide applying machine frame (1), and a fan (2), a pesticide box (3), a fan power system, a pesticide pump and a spraying mechanism (4) which are arranged on the pesticide applying machine frame (1), wherein the fan power system drives the fan (2) to operate, the pesticide box (3) is communicated with the pesticide pump, the pesticide pump is communicated with the spraying mechanism (4) through a spraying pipeline, the special cotton pesticide applying machine is characterized in that the spraying mechanism (4) comprises an upper spraying mechanism (41) and a plurality of groups of lower spraying mechanisms (42), the upper spraying mechanism (41) is communicated with the pesticide pump, the lower spraying mechanism (42) is communicated with the pesticide pump and the fan (2), one side of each group of the lower spraying mechanisms (42) is provided with a distributor (5), and a hanging and spraying device (6) is connected between two adjacent groups of the lower spraying mechanisms (42), the machine frame (1) of the pesticide spraying machine comprises a machine frame body (11) and a multi-section type spraying cantilever (12), wherein a hanging spraying device (6) is perpendicular to the spraying cantilever (12), a spray head of the spraying cantilever (12) is vertically downward, a connecting block (61) is fixed at the tail end of the hanging spraying device (6), a first connecting hole is formed in the connecting block (61), a connecting sleeve for allowing the connecting block (61) to penetrate through is fixed at a position corresponding to the spraying cantilever (12), a second connecting hole corresponding to the connecting block is formed in the connecting sleeve, the connecting block (61) at the tail end of the hanging spraying device (6) penetrates through the connecting sleeve, and the connecting bolt penetrates through the first connecting hole in the connecting block (61) and the second connecting hole in the connecting sleeve; the upper-layer spraying mechanism (41) comprises an upper-layer spray head, the upper-layer spray head is a hollow conical spray head, the spray cone angle of the spray head is 60-100 degrees, and the aperture of the spray head is 1.0-1.5 mm; the lower-layer spraying mechanism (42) comprises an air duct (421), the height of the air duct (421) is adjusted through a locking mechanism, the locking mechanism comprises a guide block fixed above one side of the air duct (421), a guide sleeve fixed on the spraying cantilever (12) and a lock bolt, the guide block is arranged in the guide sleeve in a penetrating mode, a plurality of lock holes are uniformly distributed in the guide block, the lock holes are distributed along the length direction of the guide block, a lock hole is formed in the guide sleeve, and the lock bolt is arranged in the lock holes in the corresponding positions of the guide block and the guide sleeve in a penetrating mode;

each set of said lower spray means (42) comprises: the spray device comprises an air duct (421), air duct outlets (422) and a lower-layer spray head structure (423), wherein the air duct (421) is movably connected below the spray cantilever (12) through a locking mechanism, the air duct (421) is uniformly arranged and is perpendicular to the spray cantilever (12), the air duct outlets (422) are connected with the tail end of the air duct (421), and the lower-layer spray head structure (423) is fixed at the outlet of the air duct outlets (422); each air duct (421) is communicated with an air outlet of the fan (2) through an air curtain, and the lower-layer spray head structure (423) is communicated with the upper-layer spray pipeline (411) through a liquid guide pipe;

the air duct outlet (422) comprises an air duct connecting part (4221) and a diverging part (4222), the air duct connecting part (4221) is connected with the tail end of the air duct (421), the diverging part (4222) is of a horn-shaped structure, the diverging part (4222) comprises an diverging opening (4223), the diverging opening (4223) is located on the side surface of the diverging part (4222), the outer contour of the diverging opening (4223) is rectangular and consists of four guide walls which are flared and diffused outwards and are respectively an upper guide wall, a lower guide wall and two side guide walls, the two side guide walls are arc-shaped surfaces, an included angle is formed between the inner wall of the tail end of the diverging opening and a vertical plane where the spraying cantilever (12) is located, the included angle is 0-30 degrees, an included angle is formed between the inner wall of the lower guide wall and the vertical plane where the spraying cantilever (12) is located, the included angle is 60-80 degrees, the inner wall of the upper guide wall and the vertical plane where the spraying cantilever (12) is located form an included angle, and the included angle is 53-80 degrees.

2. The cotton applicator according to claim 1, wherein the spraying cantilever (12) is transversely connected to one side of the machine frame body (11) below, the fan (2), the pesticide box (3), the fan power system and the pesticide pump are respectively fixed on the machine frame body (11), the fan (2) is positioned above the spraying cantilever (12), and the spraying mechanisms (4) are distributed on the spraying cantilever (12).

3. The cotton special applicator according to claim 1, wherein the upper layer spraying mechanism (41) comprises an upper layer spraying pipeline (411) and an upper layer spray head, the upper layer spraying pipeline (411) is connected to the outlet end of the pesticide pump, the upper layer spraying pipeline (411) extends along the length direction of the spraying cantilever (12), the upper layer spray head is distributed on the pipe wall of the upper layer spraying pipeline (411) and is communicated with the upper layer spraying pipeline (411), and the upper layer spray head sprays obliquely downwards.

4. The cotton special applicator according to claim 1, wherein a guide plate (4224) is embedded in the diffusion port (4223), and the guide plate (4224) is seamlessly embedded with the inner wall of the diffusion port (4223); the air deflector (4224) comprises at least one air deflector assembly, the air deflector assembly comprises an arc-shaped partition plate (2411), an S-shaped partition plate (2421) and a plurality of fins, the arc-shaped partition plate (2411) and the S-shaped partition plate (2421) are transversely arranged in the diffusing port (4223), the fins are vertically arranged in the diffusing port (4223), and the fins are vertically connected with the arc-shaped partition plate (2411) and the S-shaped partition plate (2421) to form a plurality of branch channels in the diffusing port (4223); the arc-shaped partition plate

(2411) The fins are located above the S-shaped partition plate (2421) and are uniformly distributed in a fan shape towards the outer side direction of the divergent opening (4223).

5. The cotton applicator as claimed in claim 4, wherein the arc-shaped partition (2411) is bent upwards to form a spoon shape, and the end of the arc-shaped partition (2411) positioned outside the diffusion port (4223) forms an angle of 15-35 degrees with the horizontal plane, and the end of the S-shaped partition (2421) positioned outside the diffusion port (4223) is lower than the end positioned inside the diffusion port (4223) and the end positioned outside the diffusion port (4223) forms an angle of 15-40 degrees with the horizontal plane.

6. The cotton special applicator as claimed in claim 1, wherein the lower layer spray head structure (423) comprises a spray rod (4231) and at least one group of lower layer spray heads (4232), the spray rod (4231) is communicated with the upper layer spray pipeline (411) through a liquid guide pipe, and the lower layer spray heads (4232) are fixed on the outer wall of the spray rod (4231) and are communicated with the spray rod (4231); each group of lower layer spray heads (4232) comprises at least two lower layer spray heads (4232), each group of lower layer spray heads (4232) are circumferentially distributed around the spray rod (4231) and have a common circle center, and the lower layer spray heads (4232) are all located in the area of the divergence port (4223).

7. An applicator machine special for cotton according to claim 6, characterized in that the lower layer nozzle structure (423) comprises two groups of lower layer nozzles (4232), one group is positioned at the lower end part of the spray rod (4231), the other group is positioned in the middle of the spray rod (4231), the distance between the two groups of lower layer nozzles (4232) is 100mm-200mm, each group of lower layer nozzles (4232) comprises two lower layer nozzles (4232), the included angle between the two lower layer nozzles (4232) on each group is 90 degrees, the included angle between the two lower layer nozzles (4232) on each group and the plane of the divergence port (4223) is equal, the two lower layer nozzles (4232) at the lower end part of the spray rod (4231) are vertical to the spray rod (4231), the plane of the two lower layer nozzles (4232) in the middle of the spray rod (4231) and the plane of the two lower layer nozzles (4232) at the lower end part of the spray rod (4231) are at an included angle of α, and the included angle of α is 0-10 degrees.

8. The cotton applicator as claimed in claim 7, wherein the lower layer nozzle (4232) is a hollow conical nozzle, and the spray cone angle of the nozzle is 60-100 °.