WO2021077297A1

WO2021077297A1 - Centrifugal throwing disc, centrifugal spray head, spraying system, and movable platform

Info

Publication number: WO2021077297A1
Application number: PCT/CN2019/112578
Authority: WO
Inventors: 舒展; 周乐; 周万仁
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2021-04-29
Also published as: CN112218725B; CN112218725A

Abstract

A centrifugal throwing disc, a centrifugal spray head, a spraying system, and a movable platform. The centrifugal throwing disc is used for rotatingly spraying liquid medicine and comprises: an upper throwing disc (10) and a lower throwing disc (20), liquid throwing channels (30) for throwing out liquid medicine being formed between the upper throwing disc (10) and the lower throwing disc (20); and the lower throwing disc (20) is provided with a sunken portion (23) formed by sinking in along the direction away from the upper throwing disc (10), the sunken portion (23) forming a liquid containing cavity (24), and the liquid containing cavity (24) communicating with the liquid throwing channels (30) such that liquid in the liquid throwing channels (30) may flow to the liquid containing cavity (24). The present technical solution may effectively alleviate the dripping of a centrifugal throwing disk after stopping spraying.

Description

Centrifugal spin plate, centrifugal nozzle, spray system and movable platform

Technical field

The embodiment of the present invention relates to the technical field of spraying systems for plant protection, in particular to a centrifugal spinner, a centrifugal spray head, a spraying system and a movable platform.

Background technique

With the improvement of environmental protection requirements, countries have become more stringent in the standards of spraying systems that must not leak. For example, domestic requirements require that the number of drips not exceed 5 drops after stopping spraying for 5 seconds. Japan requires spraying systems to stop spraying within 1 second. One drop is not allowed to leak.

The centrifugal spinner is located at the end of the centrifugal nozzle and is used to spin to generate centrifugal force to throw out the liquid medicine. After creative work, the inventor found that it takes a certain time for the motor driving the spinner to spin from high speed to slow down to the speed of 0. , The spin plate cannot be stopped quickly due to inertia, causing the liquid medicine to continue to be thrown out, causing dripping. The cross-sectional shape of the centrifugal spin plate is generally horizontal or inclined downward. When the spin plate stops rotating, it sticks to the wall surface of the spin plate. The liquid medicine accumulates under the action of gravity and will flow out, causing dripping.

Summary of the invention

In view of at least one of the above-mentioned drawbacks, embodiments of the present invention provide a centrifugal spinner, a centrifugal spray head, a spray system, and a movable platform to solve the problem that the centrifugal spinner is prone to dripping in the prior art, and can effectively save liquid medicine. , Will not pollute the environment due to leakage.

The first aspect of the embodiments of the present invention provides a centrifugal spin plate, which is used for rotating and spraying liquid medicine, including: an upper spin plate and a lower spin plate, between the upper spin plate and the lower spin plate, a liquid supply is formed between the spin plate and the lower spin plate. The sling channel;

The lower spin plate is provided with a recess formed in a direction away from the upper spin plate, the recess forms a liquid containing cavity, and the liquid containing cavity is in communication with the liquid spin channel to make The liquid in the liquid sling channel can flow to the liquid containing cavity.

A second aspect of the embodiment of the present invention provides a centrifugal spray head, including: a spin disk drive device, a liquid spray device, and a centrifugal spin disk;

The spin plate driving device is connected with the centrifugal spin plate, and is used to drive the centrifugal spin plate to rotate so that the centrifugal spin plate can spray liquid medicine;

The centrifugal spin plate includes an upper spin plate and a lower spin plate. A spin channel for the liquid medicine to be thrown out is formed between the upper spin plate and the lower spin plate. A recessed portion formed by a depression in the direction where the upper swinging plate is located, the recessed portion forms a liquid-containing cavity, and the liquid-containing cavity is in communication with the slinger channel, so that the liquid in the slinger channel can flow to The liquid containing cavity.

The liquid spray device has a liquid flow channel that can communicate with a water pump, and the liquid flow channel is in communication with the liquid sling channel of the centrifugal spin plate.

A third aspect of the embodiments of the present invention provides a spray system, including a water pump, and a centrifugal spray head communicating with the water pump;

Wherein, the centrifugal spray head includes: a spin disk drive device, a liquid spray device and a centrifugal spin disk;

The spin plate driving device is connected with the centrifugal spin plate, and is used to drive the centrifugal spin plate to rotate to spray the liquid medicine;

The centrifugal spin plate includes an upper spin plate and a lower spin plate. A spin channel for liquid medicine is formed between the upper spin plate and the lower spin plate. A recessed portion formed by the direction of the upper swing plate is recessed, and the recessed portion forms a liquid-containing cavity, and the liquid-containing cavity is in communication with the liquid-spinning channel, so that the liquid in the liquid-spinning channel can flow to the Liquid chamber

A fourth aspect of the embodiments of the present invention provides a movable platform, including a frame, and at least one spraying system provided on the frame;

Wherein, the spraying system includes: a water pump, and a centrifugal spray head connected with the water pump; the centrifugal spray head includes: a spinning disk drive device, a liquid spraying device, and a centrifugal spinning disk;

The spin plate driving device is connected to the centrifugal spin plate, and is used to drive the centrifugal spin plate to rotate to spray the liquid medicine;

The centrifugal spinner includes an upper spinner and a lower spinner, and a spinner channel for liquid medicine is formed between the upper spinner and the lower spinner;

The lower spin plate is provided with a recess formed in a direction away from the upper spin plate, the recess forms a liquid containing cavity, and the liquid containing cavity is in communication with the liquid spin channel, so that the The liquid in the liquid dump channel can flow to the liquid containing cavity;

The centrifugal spin plate, the centrifugal spray head, the spraying system and the movable platform provided by the embodiment of the present invention, wherein the centrifugal spin plate includes an upper spin plate and a lower spin plate, and a liquid medicine is formed between the upper spin plate and the lower spin plate. The liquid-spinning channel is provided with a liquid-accommodating cavity on the lower swinging plate, and the liquid-accommodating cavity is connected with the liquid-swinging channel, so that when the nozzle stops spraying, the liquid in the swinging plate can partially flow back into the liquid-accommodating cavity, and the dosing liquid provides storage space, Reduce the probability of liquid medicine flowing out, which can effectively reduce dripping.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

Figure 1 is a top view of a centrifugal spin plate provided by an embodiment of the present invention;

Figure 2 is a cross-sectional view of a centrifugal spin plate provided by an embodiment of the present invention;

3 is a schematic structural diagram of a lower spin plate of a centrifugal spin plate according to an embodiment of the present invention;

4 is a top view of the bottom spin plate of the centrifugal spin plate provided by an embodiment of the present invention;

5 is a cross-sectional view of the lower spin plate of the centrifugal spin plate provided by an embodiment of the present invention;

Figure 6 is a cross-sectional view of a centrifugal spin plate provided by another embodiment of the present invention;

Fig. 7 is a cross-sectional view of a centrifugal spray head provided by an embodiment of the present invention.

Detailed ways

The following clearly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

The "including" mentioned in the entire specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within the acceptable error range, those skilled in the art can solve the technical problem within a certain error range, and basically achieve the technical effect.

In addition, the term "connected" herein includes any direct and indirect means of connection. Therefore, if it is described that a first device is connected to a second device, it means that the first device can be directly connected to the second device, or indirectly connected to the second device through other devices.

It should be understood that the term "and/or, and/or" used in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A1 and/or B1 can mean that A1 exists alone, There are three cases of A1 and B1 at the same time, and B1 alone. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the case of no contradiction, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification.

Example one

Fig. 1 is a top view of a centrifugal spin plate provided by an embodiment of the present invention; Fig. 2 is a cross-sectional view of a centrifugal spin plate provided by an embodiment of the present invention; The spin plate is generally used in a spray system, and the liquid in the centrifugal spin plate can be liquid medicine, water or other liquids, which is not limited in this embodiment. The centrifugal spinner of this embodiment can be driven to rotate by a motor. When rotating at a high speed, the liquid in the spinner is dispersed into small mist droplets due to centrifugal force, thereby effectively expanding the contact area between the liquid medicine and crops, etc. The better diffusion range of the liquid medicine improves the spraying effect of the liquid medicine.

The centrifugal spinner is usually a rotating body structure. For example, as shown in Fig. 1, the entire centrifugal spinner is in the shape of a disc. When the centrifugal spinner rotates, the force is evenly applied to each position in the circumferential direction.

As shown in Figures 1 to 2, the centrifugal spinner 100 of this embodiment includes an upper spinner 10 and a lower spinner 20. A spinner channel for the liquid medicine is formed between the upper spinner 10 and the lower spinner 20. 30.

The upper spin plate 10 and the lower spin plate 20 can be arranged concentrically, and the upper spin plate 10 and the lower spin plate 20 can be detachably connected together, so as to facilitate the liquid medicine treatment of the gap between the upper spin plate 10 and the lower spin plate 20. Impurity cleaning, etc. For example, as shown in FIG. 3, a plurality of hollow studs 21 can be uniformly arranged on the lower swing plate 20, and the upper swing plate 10 has screw holes opposite to the hollow studs 21, and the bolts 22 pass through the hollow studs 21 and the upper swing plate. The screw holes on the spin plate 10 are screwed, and the upper spin plate 10 and the lower spin plate 20 are detachably connected. Of course, the detachable connection manner between the upper spin plate 10 and the lower spin plate 20 may also be other methods, which is not limited in this embodiment.

Fig. 3 is a schematic structural diagram of a lower spin plate of a centrifugal spin plate provided by an embodiment of the present invention; Fig. 4 is a top view of a lower spin plate of a centrifugal spin plate provided by an embodiment of the present invention; Fig. 5 is provided by an embodiment of the present invention A cross-sectional view of the lower spin plate of the centrifugal spin plate; as shown in FIGS. 3 to 5, the lower spin plate 20 has a recess 23 formed by recessing in the direction away from the upper spin plate 10, and the recess 23 forms a liquid container In the cavity 24, the liquid containing cavity 24 is in communication with the slinger channel 30 so that the liquid in the slinger channel 30 can flow to the liquid containing cavity 24. After the spraying system stops spraying, since there is no liquid-containing cavity 24 in the centrifugal spinner 100 in the prior art, the liquid will accumulate in the spinner channel 30 and rotate at the low speed of the centrifugal spinner 100, and it is easy to continue from the spinner. The channel 30 flows to the outside, forming a drip. However, in this embodiment, the liquid containing cavity 24 can provide a containing space for the liquid in the liquid sling channel 30 after it flows back, which effectively reduces dripping.

Wherein, the shape of the recessed portion 23 may be bowl-shaped, and the side wall of the recessed portion 23 is a curved surface or an inclined surface, so as to guide the liquid in the slinger channel 30 to flow into the liquid containing cavity 24. The hollow stud 21 may be located in the recessed portion 23 with one end connected to the bottom wall of the recessed portion 23 and the other end extending upward along the axis of the rotating shaft of the centrifugal spinner 100 to butt against the screw hole of the upper spinner 10.

Preferably, the recessed portion 23 is located in the middle of the lower swing plate 20. The recessed portion 23 may be a centrally symmetric structure centered on the axis of the rotating shaft of the spinner 100. In this way, the force of the entire spin plate is more uniform, and the droplets can be thrown out evenly from the surroundings.

More specifically, the corners of each edge of the recessed portion 23 may be rounded, so that the liquid can flow into the liquid-containing cavity 24 at a relatively gentle speed, and the impact is reduced.

As shown in FIGS. 1 and 3, the spin channel 30 may be arc-shaped, and the trajectory of the spin channel 30 may be connected from the center of the centrifugal spin plate 100 to the edge of the centrifugal spin plate 100. The trajectory of the spinner channel 30 is consistent with the direction of rotation of the spinner 100. For example, if the spinner 100 rotates counterclockwise, for each spinner channel 30, the trajectory extends from the center of the spinner 100. The position to the edge position extends in a counterclockwise direction. In this way, the liquid medicine in the centrifugal spinner 100 can be thrown out roughly in the tangential direction of the centrifugal spinner 100 under the action of the centrifugal inertia of the centrifugal spinner 100.

Due to the high-speed rotation of the centrifugal spinner 100, under the action of centrifugal inertia, the liquid medicine is thrown out in an arc in the centrifugal spinner 100, and the spinner channel 30 is designed to be the above-mentioned arc, and the spinner channel 30 The trajectory can be roughly the same as the trajectory of the liquid medicine. As a result, the liquid medicine can be thrown out of the liquid medicine channel 30, and the impact with the wall surface of the liquid medicine channel 30 is reduced, and the velocity of the liquid medicine is attenuated to ensure the liquid medicine. It has a higher throwing speed. Generally, within the allowable range of the liquid medicine amount, the faster the spraying speed of the liquid medicine, the wider the spray area of the liquid medicine, thus effectively improving the spraying effect.

The spin channel 30 may include a plurality of spin channels 30, and the multiple spin channels 30 may be distributed radially around the center of the centrifugal spin plate. The multiple spinner channels 30 can make the liquid medicine enter each spinner channel 30 to ensure that the liquid medicine is dispersed around the centrifugal spinner 100, and, in conjunction with the high-speed rotation of the centrifugal spinner 100, the liquid is centrifuged in the form of mist. The circumferential edge of the spin plate 100 is thrown out.

In this embodiment, as shown in FIG. 3, a deflector 40 is provided on the upper slinger 10 and/or the lower slinger 20, and the deflector 40 and the upper slinger 10 and the lower slinger 20 form a slinger channel 30. Specifically, the deflector 40 can be connected to the upper or lower slinger 10 or the lower slinger 20, or alternatively, the upper slinger 10 and the lower slinger 20 are provided with a deflector 40, and the deflector 40 is connected to the upper slinger plate 20. The slinger 10 and the lower slinger 20 enclose a plurality of slinger channels 30. In this embodiment, for example, as shown in FIG. 3, the other positions of the lower swing plate 20 except for the recessed portion 23 are in the shape of a flat plate, and a deflector 40 is provided on the lower swing plate 20, and each deflector 40 may be perpendicular to the lower plate. The bottom surface of the spin plate 20 and the baffles 40 are parallel to each other.

The deflector 40 can be integrally formed with the upper flap 10 and/or the lower flap 20, so that there is no gap between the deflector 40 and the upper flap 10 and/or the lower flap 20, preventing liquid from staying in the deflector The gap between the plate 40 and the upper spin plate 10 and/or the lower spin plate 20.

In other embodiments, the upper slinger 10 and/or the lower slinger 20 may be provided with diversion grooves, and the diversion channel 30 is formed by the diversion grooves. This method is similar to that of the deflector. The difference is only in the process. The spin channel 30 is processed on the upper spin plate 10 and/or the lower spin plate 20 by turning and milling, etc., which can also form a spin plate. Channel 30.

In this embodiment, the end of the upper swing plate 10 may be horizontal; and/or, the end of the lower swing plate 20 may be horizontal. It should be noted that the end of the upper spinner 10 may be approximately horizontal to the vertical plane of the rotation axis of the centrifugal spinner 100, and the end of the lower spinner 20 may be approximately horizontal to the vertical plane of the rotation axis of the centrifugal spinner 100.

The end of the upper spin plate 10 is horizontal, and the end of the lower spin plate 20 is horizontal, so that the droplets are thrown out from the direction parallel to the upper spin plate 10 and the lower spin plate 20, and will not be thrown to the motor above the centrifugal spin plate 100 , Blades and other devices to prevent corrosion of motors or blades.

The centrifugal spinner provided in this embodiment includes an upper spinner and a lower spinner. A spinner channel for liquid medicine is formed between the upper spinner and the lower spinner. A liquid containing cavity is provided on the lower spinner. It is connected with the liquid sling channel, so that when the nozzle stops spraying, the liquid in the sling plate can partly flow back into the liquid-containing cavity, and the drug solution provides storage space, reduces the probability of the drug solution flowing out, and can effectively reduce dripping.

Example two

This embodiment is basically the same as the first embodiment, and is different from the first embodiment in that the end of the upper swing plate 10 can be inclined downward; and/or the end of the lower swing plate 20 is inclined downward. It should be noted that the end of the upper spin plate 10 can be tilted downward to form an angle with the rotation axis of the centrifugal spin plate 100. Similarly, the end of the lower spin plate 20 can also be tilted downward to be compatible with the centrifugal spin plate 100. An included angle is formed between the rotating shafts of the disk 100. Specifically, the inclination angle of the tip of the upper swing plate 10 may be the same as or different from the inclination angle of the lower swing plate 20. It can be understood that the larger the angle between the end of the centrifugal spin plate 100 and the horizontal plane, the more downward the centrifugal spin plate 100 is inclined, and the faster the falling speed of the droplets when they are thrown out. At the same time, the droplets also need It has a large enough spraying range. After experimentation, the angle between the end of the centrifugal spin plate 100 and the horizontal plane can be set to be between 10° and 40°, so that the droplet throwing speed and spraying range can be reduced. Choose.

In other embodiments, the end of the upper swing plate 10 may be horizontal, and the end of the lower swing plate 20 may be inclined downward, or the end of the upper swing plate 10 may be inclined downward, and the end of the lower swing plate 20 may be horizontal. This embodiment is not limited. When one of the ends of the upper flap 10 and the lower flap 20 is horizontal and the other is inclined downward, or when the ends of the upper flap 10 and the lower flap 20 are both inclined downward, the droplets can be tilted downward or The horizontal ejection effectively prevents droplets from being thrown onto the motor, blades and other devices above the centrifugal spin plate 100, and prevents corrosion of the motor or blades.

It can be understood that, in other embodiments, since the direction and angle of the liquid being spun out are only affected by the spout channel 30, the upper surface of the upper spout plate 10 and only the upper surface of the lower spout plate 20 participates in the liquid spout channel 30. Therefore, it is only necessary to define the end of the lower surface of the upper swing plate 10 and the end of the upper surface of the lower swing plate to be horizontal or obliquely downward. The surface can have any shape, which is not limited in this embodiment. However, for ease of processing and beautiful appearance, preferably, the upper surface of the upper swing plate 10 is parallel to the lower surface of the upper swing plate 10, and the lower surface of the lower swing plate 20 is parallel to the upper surface of the lower swing plate 20.

Fig. 6 is a cross-sectional view of a centrifugal spin plate provided by another embodiment of the present invention; as shown in Fig. 6, in other alternative embodiments, the middle part of the upper spin plate 10 may be higher than the edge part of the upper spin plate, and from The middle portion of the upper swing plate 10 gradually slopes downwards at the edge portion of the upper swing plate 10. Therefore, the liquid droplets can be thrown out in a downwardly inclined direction under the restriction of the upper spinner 10, and the upper spinner 10 of this embodiment is gradually inclined relative to only the end of the upper spinner 10 The downward tilting can prevent the droplets from hitting the wall surface on the upper swing plate 10, and the instantaneous attenuation can ensure the throwing speed of the droplets.

At the same time, the middle part of the lower spinner 20 may also be higher than the edge part of the lower spinner 20. In this way, the liquid droplets can also be thrown obliquely downward at the lower spin plate 20.

The cavity wall of the liquid-containing cavity 24 of the lower spinner 20 gradually slopes downward from the edge of the recess 23 to the edge of the spinner 20, so that the longitudinal section of the lower spinner 20 is M-shaped. The entire lower swing plate 20 is M-shaped. On the one hand, a part of the liquid droplets can be contained in the liquid containing cavity 24, which effectively reduces the leakage of drops. At the same time, the droplets can also be inclined at the edge of the lower swing plate 20 during operation. Flick from the bottom, a compromise choice between flicking speed and spraying range.

Example three

Fig. 7 is a cross-sectional view of a centrifugal spray head provided by an embodiment of the present invention. This embodiment provides a centrifugal spray head, including: a spin disk drive device 200, a liquid spray device 300, and a centrifugal spin disk 100;

The spinner drive device 200 is connected to the centrifugal spinner 100, and is used to drive the centrifugal spinner 100 to rotate so that the centrifugal spinner 100 can spray the liquid medicine;

As shown in FIGS. 3 to 5, the lower spinner 20 has a recess 23 that is recessed in the direction away from the upper spinner 10, the recess 23 forms a liquid containing cavity 24, the liquid containing cavity 24 and the liquid spin channel 30 is in communication, so that the liquid in the slinger channel 30 can flow to the liquid-containing cavity 24.

Further, the spinner drive device 200 may include a hollow connection shaft 201; the liquid spray device 300 is provided with a water pump connection pipe 400 for connecting with a water pump; the water pump connection pipe 400 communicates with the hollow connection shaft 201 to form a liquid flow channel. The water pump connecting pipe 400 can be a hose or a hard tube. The liquid pumped from the water pump enters the liquid spraying device 300 through the water pump connecting pipe 400. The liquid spraying device 300 is connected to the centrifugal spinner 100, and the centrifugal spinner 100 is driven by the spinner. The device 200 rotates at a high speed to generate centrifugal force, so that the liquid entering from the liquid spray device 300 is thrown out through the centrifugal spin plate 100.

The spinner drive device 200 may further include a stator base 202 and a rotor cover 203; the stator base, the hollow connecting shaft and the liquid spray device are fixedly connected, and the rotor cover is fixedly connected with the centrifugal spinner.

The stator base 202, the hollow connecting shaft 201 and the liquid spray device 10 are fixedly connected, and the rotor cover 203 is fixedly connected to the centrifugal spinner 100. The rotor cover 203 can be sleeved outside the hollow connecting shaft 201. When the driving device 30 is powered on, the hollow connecting shaft 201 and the stator base 202 serve as a stator to keep in place. The rotor cover 203 rotates at a high speed relative to the hollow connecting shaft 201, thereby driving the centrifugal The spin plate 100 rotates at a high speed, and the liquid in the centrifugal spin plate 100 generates a relatively large centrifugal force, and is sprayed out in a large area in the form of a mist.

The material of the stator base 202 may include at least one of the following: aluminum alloy, stainless steel, and carbon fiber. The material of the hollow connecting shaft 201 may also include at least one of the following: aluminum alloy, stainless steel, and carbon fiber. Aluminum alloy, stainless steel, carbon fiber and other materials have corrosion resistance, good strength, and are not easy to damage.

The rotor cover 203 and the centrifugal spin plate 100 can be detachably connected. Specifically, the connection manner between the rotor cover and the spray plate may include at least one of the following: snap connection, screw connection, and key connection. In a preferred embodiment, as shown in FIG. 1, the rotor cover 203 and the centrifugal spin plate 100 can be fixed circumferentially. Specifically, the side wall of the rotor cover 203 can be provided with protrusions, and the inner hole of the centrifugal spin plate 100 The side wall may be provided with grooves matching the protrusions, thereby achieving the purpose of circumferentially fixing the rotor cover 203 and the centrifugal spinner 100. Of course, the protrusions can also be provided on the centrifugal spin plate 100, and the grooves 1021 are provided on the rotor cover 203, as long as the two can be fixed in the circumferential direction. In addition, the centrifugal spinner 100 and the rotor cover 203 can also be interference fit, so that the centrifugal spinner 100 can be firmly fixed on the rotor cover 203. In other embodiments, the centrifugal spinner 100 and the rotor cover 203 may be detachably connected by fasteners, such as screwed together. Alternatively, the centrifugal spinner 100 and the rotor cover 203 can be connected together by a key and fastened by other fasteners. The centrifugal spinner 100 and the rotor cover 203 can be connected in many ways, or multiple connection methods can be matched, as long as the centrifugal spinner 100 and the rotor cover 203 can be fixed.

As shown in FIG. 2 or FIG. 3, further, the rotor cover 203 and the hollow connecting shaft 201 may be connected by a bearing 500, and the rotor cover 203 can rotate relative to the hollow connecting shaft 201. The bearing 500 can realize the rotation of the rotor cover 203 relative to the hollow connecting shaft 201, and the rotating force will not be brought to the hollow connecting shaft 201, and the stability of the hollow connecting shaft 201 can be effectively maintained. The rotor cover 203 and the bearing 500 are detachably connected. For example, the rotor cover 203 and the bearing 500 are screwed together by fasteners, or detachably connected by buckles. When the centrifugal spinner 100 needs to be disassembled, the rotor cover 203 can be removed. Together with the centrifugal spin plate 100, it is removed from the bearing 500.

Furthermore, as shown in FIG. 2 or FIG. 3, a seal 600 may be provided under the bearing 500 and between the rotor cover 203 and the hollow connecting shaft 201, and the seal 600 is used to prevent liquid from flowing back into the bearing 500 . The seal 600 may specifically be a skeleton seal, which includes a rigid support body and an elastic sealing body. The rigid support body provides supporting force, and the elastic sealing body is used to seal the connection gap, so as to achieve a better seal while ensuring the structural strength. The seal 600 prevents liquid from flowing back into the bearing 500, and can effectively protect the bearing 500 and prevent the bearing 500 from being damaged.

The structural principle and function of the centrifugal spin plate 100 in this embodiment are the same as those in the first embodiment. For details, reference may be made to the description of the first embodiment, which will not be repeated in this embodiment.

Example four

This embodiment is basically the same as the third embodiment, and is different from the third embodiment in that the end of the upper swing plate 10 can be inclined downward; and/or the end of the lower swing plate 20 is inclined downward.

As shown in FIG. 6, in other alternative embodiments, the middle part of the upper spinner 10 may be higher than the edge part of the upper spinner, and the middle part of the upper spinner 10 upwards and the edge part of the spinner 10 gradually downwards. tilt.

The structure, principle and function of the centrifugal spin plate in this embodiment are the same as those in the second embodiment. For details, reference may be made to the description of the second embodiment, which will not be repeated here.

Example five

This embodiment provides a spray system, including a water pump, and a centrifugal spray head connected with the water pump;

Among them, the centrifugal spray head includes: a spinning disk drive device 200, a liquid spray device 300, and a centrifugal spinning disk 100; the spinning disk driving device 200 is connected to the centrifugal spinning disk 100, and is used to drive the centrifugal spinning disk 100 to rotate to make the centrifugal spinning disk 100 rotate. 100 can spray liquid medicine;

As shown in Figures 1 to 2, the centrifugal spinner 100 of this embodiment includes an upper spinner 10 and a lower spinner 20. A spinner channel for the liquid medicine is formed between the upper spinner 10 and the lower spinner 20. 30. The liquid spray device 300 has a liquid flow channel 301 that can communicate with a water pump, and the liquid flow channel 301 is in communication with the liquid spin channel 30 of the centrifugal spin plate 100.

Further, the spraying system of this embodiment further includes: a water pump driving device for driving the water pump to operate; a control device, which is electrically connected to the water pump driving device and the spinning disc driving device 200, for controlling the spinning after the water pump is stopped for a preset time. The disk drive device 200 stops driving. Therefore, in the control logic, when the spray system needs to stop spraying, the water pump driving device (water pump motor) of the water pump is controlled to stop first, and the water pump driving device can be controlled by the control device to stop driving. After a period of lag, the spinning disc drive device 200 (the spinning disc motor) of the centrifugal nozzle is stopped to ensure that no liquid medicine is pumped out during the deceleration period of the centrifugal spinning disc, thereby reducing drip leakage. By optimizing the control logic, the leakage problem is improved, no additional cost will be added, and the implementation is simple.

Further, the spinner driving device 200 may include a hollow connecting shaft 201; the liquid spray device 300 is provided with a water pump connecting pipe 400 for connecting with a water pump; the water pump connecting pipe 400 communicates with the hollow connecting shaft 201 to form a liquid flow channel. The water pump connecting pipe 400 can be a hose or a hard tube. The liquid pumped from the water pump enters the liquid spraying device 300 through the water pump connecting pipe 400. The liquid spraying device 300 is connected to the centrifugal spinner 100, and the centrifugal spinner 100 is driven by the spinner. The device 200 rotates at a high speed to generate centrifugal force, so that the liquid entering from the liquid spray device 300 is thrown out through the centrifugal spin plate 100.

Example Six

This embodiment is basically the same as the fifth embodiment, and is different from the fifth embodiment in that the end of the upper swing plate 10 can be inclined downward; and/or the end of the lower swing plate 20 is inclined downward.

Example Seven

This embodiment provides a movable platform. The movable platform of this embodiment may include an agricultural plant protection drone. Specifically, it may include a frame and at least one spraying system provided on the frame; wherein the spraying system includes: Including the water pump and the centrifugal nozzle connected with the water pump;

The centrifugal spray head includes: a spin plate drive device 200, a liquid spray device 300, and a centrifugal spin plate 100; the spin plate drive device 200 is connected to the centrifugal spin plate 100 and is used to drive the centrifugal spin plate 100 to rotate so that the centrifugal spin plate 100 can be rotated. Spray liquid medicine;

Further, the spraying system of this embodiment further includes: a water pump driving device for driving the water pump to operate; a control device, which is electrically connected to the water pump driving device and the spinning disc driving device 200, for controlling the spinning after the water pump is stopped for a preset time. The disk drive device 200 stops driving. Therefore, in the control logic, when the spray system needs to stop spraying, the water pump driving device (water pump motor) of the water pump is controlled to stop first, and the water pump driving device can be controlled by the control device to stop driving. After lagging for a period of time, the spinning disk drive device 200 (the spinning disk motor) of the centrifugal nozzle is stopped to ensure that no liquid medicine is pumped out during the deceleration period of the centrifugal spinning disk, thereby reducing leakage. By optimizing the control logic, the leakage problem is improved, no additional cost is added, and the implementation is simple.

The stator base 202, the hollow connecting shaft 201 and the liquid spray device 10 are fixedly connected, and the rotor cover 203 is fixedly connected to the centrifugal spinner 100. The rotor cover 203 can be sleeved outside the hollow connecting shaft 201. When the driving device 30 is powered on, the hollow connecting shaft 201 and the stator base 202 serve as a stator to keep in place. The rotor cover 203 rotates at a high speed relative to the hollow connecting shaft 201, thereby driving the centrifugal The spin plate 100 rotates at a high speed, and the liquid in the centrifugal spin plate 100 generates a relatively large centrifugal force, and is sprayed out in a large area in the form of mist.

Example eight

This embodiment is basically the same as the seventh embodiment, and is different from the seventh embodiment in that the end of the upper swing plate 10 can be inclined downward; and/or the end of the lower swing plate 20 is inclined downward.

The cavity wall of the liquid-containing cavity 24 of the lower spinner 20 gradually slopes downward from the edge of the recess 23 to the edge of the spinner 20, so that the longitudinal section of the lower spinner 20 is M-shaped. The entire lower swing plate 20 is M-shaped. On the one hand, a part of the liquid droplets can be contained in the liquid containing cavity 24, effectively reducing the leakage of drops. At the same time, the droplets can also be inclined at the edge of the lower swing plate 20 during operation. Flick from the bottom, a compromise choice between throwing speed and spraying range.

In the several embodiments provided by the present invention, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical or mechanical. Or other forms.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A centrifugal spin plate, which is used for rotating and spraying liquid medicine, is characterized by comprising: an upper spin plate and a lower spin plate, and a liquid spin channel for the liquid medicine to be thrown out is formed between the upper spin plate and the lower spin plate ；

The lower spin plate is provided with a recess formed in a direction away from the upper spin plate, the recess forms a liquid containing cavity, and the liquid containing cavity is in communication with the liquid spin channel to make The liquid in the liquid sling channel can flow to the liquid containing cavity.
The centrifugal spin plate according to claim 1, wherein the recessed portion is located in the middle of the lower spin plate.
The centrifugal spin plate according to claim 1, wherein the upper spin plate and the lower spin plate are detachably connected.
The centrifugal spinner according to claim 1, wherein the end of the upper spinner is horizontal; and/or the end of the lower spinner is horizontal.
The centrifugal spin plate according to claim 1, wherein the end of the upper spin plate is inclined downward; and/or the end of the lower spin plate is inclined downward.
The centrifugal spinner according to claim 1, wherein the middle part of the upper spinner is higher than the edge part of the upper spinner, and from the middle part of the upper spinner to the upper spinner The edge part of the slope gradually downwards.
The centrifugal spin plate according to claim 1, wherein the middle part of the lower spin plate is higher than the edge part of the lower spin plate.
The centrifugal spin plate according to claim 7, wherein the cavity wall of the liquid-containing cavity of the spin plate gradually slopes downward from the edge portion of the recessed portion to the edge portion of the lower spin plate, so that The longitudinal section of the lower swing plate is M-shaped.
The centrifugal spinner according to any one of claims 1-8, wherein the spinner channel comprises a plurality of spinner channels, and the plurality of spinner channels are radially distributed around the center of the centrifugal spinner.
The centrifugal spin plate according to claim 1, wherein the upper spin plate and/or the lower spin plate are provided with a baffle plate, and the baffle plate is in contact with the upper spin plate and the lower spin plate. The spin plate surrounds the spin channel.
The centrifugal spinner according to claim 1, wherein the upper spinner and/or the lower spinner are provided with diversion grooves, and the diversion grooves form the spinner channels.
The centrifugal spin plate according to claim 1, wherein the spin channel is arc-shaped.
A centrifugal spray head, which is characterized by comprising: a spin disk drive device, a liquid spray device and a centrifugal spin disk;

The spin plate driving device is connected with the centrifugal spin plate, and is used to drive the centrifugal spin plate to rotate so that the centrifugal spin plate can spray liquid medicine;

The centrifugal spin plate includes an upper spin plate and a lower spin plate. A spin channel for the liquid medicine to be thrown out is formed between the upper spin plate and the lower spin plate. A recessed portion formed by a depression in the direction where the upper swinging plate is located, the recessed portion forms a liquid-containing cavity, and the liquid-containing cavity is in communication with the slinger channel, so that the liquid in the slinger channel can flow to The liquid containing cavity;

The liquid spray device has a liquid flow channel that can communicate with a water pump, and the liquid flow channel is in communication with the liquid sling channel of the centrifugal spin plate.
The centrifugal spray head according to claim 13, wherein the recessed portion is located in the middle of the lower swing plate.
The centrifugal spray head according to claim 13, wherein the upper spin plate and the lower spin plate are detachably connected.
The centrifugal spray head according to claim 13, wherein the end of the upper spin plate is horizontal; and/or the end of the lower spin plate is horizontal.
The centrifugal spray head according to claim 13, wherein the end of the upper swing plate is inclined downward; and/or the end of the lower swing plate is inclined downward.
The centrifugal spray head according to claim 13, wherein the middle part of the upper spinner is higher than the edge part of the upper spinner, and the middle part of the upper and lower spinner faces the upper spinner. The edge part of the slope gradually downwards.
The centrifugal spray head according to claim 13, wherein the middle portion of the lower spinner is higher than the edge portion of the lower spinner.
The centrifugal spray head according to claim 19, wherein the cavity wall of the liquid-containing cavity of the lower spinner gradually slopes downward from the edge of the recessed portion to the edge of the lower spinner to The longitudinal section of the lower swing plate is M-shaped.
The centrifugal spray head according to any one of claims 13-19, wherein the spin channel comprises a plurality of spin channels, and the plurality of spin channels are radially distributed around the center of the centrifugal spin plate.
The centrifugal spray head according to claim 13, characterized in that a deflector is provided on the upper swing plate and/or the lower swing plate, and the deflector is connected to the upper swing plate and the lower swing plate. The spin plate surrounds the spin channel.
The centrifugal spray head according to claim 13, wherein the upper swing plate and/or the lower swing plate are provided with diversion grooves, and the diversion grooves form the liquid spur channel.
The centrifugal spray head according to claim 13, wherein the spin channel is arc-shaped.
The centrifugal spray head according to claim 13, wherein the spinning disk drive device comprises a hollow connecting shaft; and the liquid spray device is provided with a water pump connecting pipe for connecting with a water pump;

The water pump connecting pipe communicates with the hollow connecting shaft to form the liquid flow channel.
The centrifugal spray head according to claim 25, wherein the spinning disk drive device further comprises a stator base and a rotor cover;

The stator base, the hollow connecting shaft and the liquid spraying device are fixedly connected, and the rotor cover is fixedly connected to the centrifugal spinner.
The centrifugal spray head according to claim 26, wherein the material of the stator base and/or the hollow connecting shaft comprises at least one of the following: aluminum alloy, stainless steel, and carbon fiber.
The centrifugal spray head according to claim 26, wherein the rotor cover and the hollow connecting shaft are connected by a bearing, and the rotor cover can rotate relative to the hollow connecting shaft.
The centrifugal spray head according to claim 28, wherein a seal is provided under the bearing and between the rotor cover and the hollow connecting shaft, and the seal is used to prevent liquid from flowing back to The bearing.
The centrifugal spray head according to claim 26, wherein the rotor cover is detachably connected to the centrifugal spin plate.
A spraying system, characterized by comprising a water pump, and a centrifugal spray head connected with the water pump;

Wherein, the centrifugal spray head includes: a spin disk drive device, a liquid spray device and a centrifugal spin disk;

The spin plate driving device is connected with the centrifugal spin plate, and is used to drive the centrifugal spin plate to rotate to spray the liquid medicine;

The centrifugal spin plate includes an upper spin plate and a lower spin plate. A spin channel for liquid medicine is formed between the upper spin plate and the lower spin plate. A recessed portion formed by a depression in the direction where the upper swing plate is located, the recessed portion forms a liquid-containing cavity, and the liquid-containing cavity is in communication with the liquid-spinning channel so that the liquid in the liquid-spinning channel can flow to the Liquid chamber

The liquid spray device has a liquid flow channel that can communicate with a water pump, and the liquid flow channel is in communication with the liquid sling channel of the centrifugal spin plate.
The spray system according to claim 31, wherein the recessed portion is located in the middle of the lower swing plate.
The spray system according to claim 31, wherein the upper swing plate and the lower swing plate are detachably connected.
The spray system according to claim 31, wherein the end of the upper swing plate is level; and/or the end of the lower swing plate is level.
The spray system according to claim 31, wherein the end of the upper swing plate is inclined downward; and/or the end of the lower swing plate is inclined downward.
The spray system according to claim 31, wherein the middle part of the upper swing plate is higher than the edge part of the upper swing plate, and from the middle part of the upper swing plate to the upper swing plate The edge part gradually slopes downward.
The spray system according to claim 31, wherein the middle portion of the lower swing plate is higher than the edge portion of the lower swing plate.
The spray system according to claim 31, wherein the cavity wall of the liquid-containing cavity of the lower slinger gradually slopes downward from the edge of the recess to the edge of the lower slinger, so that The longitudinal section of the lower swing plate is M-shaped.
The spraying system according to any one of claims 31-38, wherein the spin channel comprises a plurality of spin channels, and the plurality of spin channels are radially distributed around the center of the centrifugal spin plate.
The spraying system according to claim 31, characterized in that a deflector is provided on the upper swing plate and/or the lower swing plate, and the deflector is connected to the upper swing plate and the lower swing plate. The disc encloses the liquid sling channel.
The spraying system according to claim 31, wherein the upper slinger plate and/or the lower slinger plate is provided with a diversion groove, and the diversion groove forms the liquid spur channel.
The spray system according to claim 31, wherein the slinger channel is arc-shaped.
The spraying system according to claim 31, wherein the spinning disk driving device comprises a hollow connecting shaft; and a water pump connecting pipe for connecting with a water pump is provided in the liquid spraying device;

The water pump connecting pipe communicates with the hollow connecting shaft to form the liquid flow channel.
The spray system according to claim 43, wherein the spinning disk drive device further comprises a stator base and a rotor cover;

The stator base, the hollow connecting shaft and the liquid spraying device are fixedly connected, and the rotor cover is fixedly connected to the centrifugal spinner.
The spray system according to claim 44, wherein the material of the stator base and/or the hollow connecting shaft comprises at least one of the following: aluminum alloy, stainless steel, and carbon fiber.
The spray system of claim 44, wherein the rotor cover and the hollow connecting shaft are connected by a bearing, and the rotor cover can rotate relative to the hollow connecting shaft.
The spray system according to claim 46, wherein a seal is provided under the bearing and between the rotor cover and the hollow connecting shaft, and the seal is used to prevent liquid from flowing back to the In the bearing.
The spray system of claim 44, wherein the rotor cover is detachably connected to the centrifugal spin plate.
The spray system of claim 31, further comprising:

The water pump driving device is used to drive the water pump to operate;

The control device is electrically connected with the water pump drive device and the spin plate drive device, and is used for controlling the spin plate drive device to stop driving after the water pump stops for a preset time.
The spray system of claim 49, wherein the water pump driving device is controlled by the control device to stop driving.
A movable platform, characterized by comprising a frame, and at least one spraying system provided on the frame;

Wherein, the spraying system includes: a water pump, and a centrifugal spray head connected with the water pump; the centrifugal spray head includes: a spinning disk drive device, a liquid spraying device, and a centrifugal spinning disk;

The spin plate driving device is connected with the centrifugal spin plate, and is used to drive the centrifugal spin plate to rotate to spray the liquid medicine;

The centrifugal spinner includes an upper spinner and a lower spinner, and a spinner channel for liquid medicine is formed between the upper spinner and the lower spinner;

The lower spin plate is provided with a recess formed in a direction away from the upper spin plate, the recess forms a liquid containing cavity, and the liquid containing cavity is in communication with the liquid spin channel, so that the The liquid in the liquid dump channel can flow to the liquid containing cavity;

The liquid spray device has a liquid flow channel that can communicate with a water pump, and the liquid flow channel is in communication with the liquid sling channel of the centrifugal spin plate.
The movable platform according to claim 51, wherein the recessed portion is located in the middle of the lower swing plate.
The movable platform according to claim 51, wherein the upper spin plate and the lower spin plate are detachably connected.
The movable platform according to claim 51, wherein the end of the upper swing plate is horizontal; and/or the end of the lower swing plate is horizontal.
The movable platform according to claim 51, wherein the end of the upper swing plate is inclined downward; and/or the end of the lower swing plate is inclined downward.
The movable platform according to claim 51, wherein the middle part of the upper spin plate is higher than the edge part of the upper spin plate, and the middle part of the upper spin plate faces the upper spin plate. The edge part of the slope gradually downwards.
The movable platform according to claim 51, wherein the middle portion of the lower swing plate is higher than the edge portion of the lower swing plate.
The movable platform according to claim 57, wherein the cavity wall of the liquid-containing cavity of the lower spin plate gradually slopes downward from the edge of the recessed portion to the edge of the lower spin plate to The longitudinal section of the lower swing plate is M-shaped.
The movable platform according to any one of claims 51-58, wherein the spin channel comprises a plurality of spin channels, and the multiple spin channels are radially distributed around the center of the centrifugal spin plate.
The movable platform according to claim 51, wherein a deflector is provided on the upper swing plate and/or the lower swing plate, and the deflector is connected to the upper swing plate and/or the lower swing plate. The lower sling disk encloses the slinging channel.
The movable platform according to claim 51, wherein the upper swing plate and/or the lower swing plate are provided with diversion grooves, and the diversion grooves form the liquid spur passage.
The movable platform according to claim 51, wherein the spin channel is arc-shaped.
The movable platform according to claim 51, wherein the spinning disk driving device comprises a hollow connecting shaft; and a water pump connecting pipe for connecting with a water pump is provided in the liquid spraying device;

The water pump connecting pipe communicates with the hollow connecting shaft to form the liquid flow channel.
The movable platform according to claim 63, wherein the spinner drive device further comprises a stator base and a rotor cover;

The stator base, the hollow connecting shaft and the liquid spraying device are fixedly connected, and the rotor cover is fixedly connected to the centrifugal spinner.
The movable platform according to claim 64, wherein the material of the stator base and/or the hollow connecting shaft comprises at least one of the following: aluminum alloy, stainless steel, and carbon fiber.
The movable platform according to claim 64, wherein the rotor cover and the hollow connecting shaft are connected by a bearing, and the rotor cover can rotate relative to the hollow connecting shaft.
The movable platform according to claim 66, wherein a seal is provided under the bearing and between the rotor cover and the hollow connecting shaft, and the seal is used to prevent liquid from flowing back to The bearing.
The movable platform of claim 64, wherein the rotor cover is detachably connected to the centrifugal spinner.
The movable platform according to claim 51, further comprising:

The water pump driving device is used to drive the water pump to operate;

The control device is electrically connected with the water pump drive device and the spin plate drive device, and is used for controlling the spin plate drive device to stop driving after the water pump stops for a preset time.
The movable platform according to claim 69, wherein the water pump driving device is controlled by the control device to stop driving.
The movable platform of claim 51, wherein the movable platform comprises an agricultural plant protection drone.