Outer cover with fan blades, centrifugal atomization spraying equipment and movable platform

Abstract

The invention discloses an outer cover with fan blades, centrifugal atomization spraying equipment and a movable platform, and belongs to the technical field of plant protection equipment. The outer cover with the fan blades is suitable for being used in cooperation with a centrifugal atomization disc in the centrifugal atomization spraying equipment, in the outer cover with the fan blades, the separation strip can protect the centrifugal atomization disc, the outer cover can be driven by wind power to rotate, fog drops are not likely to be left on the separation strip, and the use experience is improved. According to the centrifugal atomization spraying equipment and the movable platform carrying the equipment, through cooperation of the centrifugal atomization disc and the draught fan, the atomization effect is good, fog drops can be better blown to a target area, the spraying operation efficiency is high, and the spraying operation effect is good.

Description

Technical Field

[0001] This invention relates to the field of spray equipment technology, and in particular to a fan-bladed outer cover, a centrifugal atomizing spraying device, and a mobile platform. Background Technology

[0002] Currently, drones, unmanned vehicles, and other agricultural machinery can be equipped with atomizing spraying devices for spraying operations, such as spraying pesticides onto crops. However, many atomizing spraying devices in related technologies use pressure atomization to spray droplets onto target areas, but pressure atomization has relatively low spraying efficiency. Summary of the Invention

[0003] One of the objectives of this invention is to provide a fan-bladed cover that can be used in a centrifugal atomizing device to protect the centrifugal atomizing disc.

[0004] The second objective of this invention is to provide a centrifugal atomizing spraying device and a mobile platform, which has good atomization effect and high spraying efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fan-bladed outer cover is applicable to a centrifugal atomizing device. The outer cover includes a rotating mounting part, a plurality of partition bars, and a plurality of fan blades. The rotating mounting part has a first axis, the plurality of partition bars are arranged around the first axis, and the plurality of fan blades are arranged around the first axis. The partition bars and the fan blades are all connected to the rotating mounting part.

[0007] Optionally, some of the fan blades are located on the side of the partition bars near the rotating mounting portion, and some of the fan blades are located on the inner ring of the partition bars; and / or, some of the fan blades are located on the side of the partition bars away from the rotating mounting portion, and some of the fan blades are located on the outer ring of the partition bars.

[0008] Optionally, the outer cover further includes an outer ring surrounding the outer periphery of the rotating mounting portion; the two axially opposite surfaces of the outer ring are the front side and the rear side, respectively, and a plurality of the spacers are connected to the front side; the outer ring is connected to the rotating mounting portion.

[0009] Optionally, the rotating mounting portion has a first outer peripheral surface on the side near the outer ring, and the outer ring has a second inner peripheral surface on the side near the rotating mounting portion, with the first outer peripheral surface and the second inner peripheral surface spaced apart from each other.

[0010] Optionally, an annular through hole is formed between the first outer peripheral surface and the second inner peripheral surface, and a plurality of the fan blades are inner ring fan blades, which are distributed around the first axis in the annular through hole; the outer ring is connected to the rotating mounting part through at least a portion of the inner ring fan blades.

[0011] Optionally, the fan blades of the outer casing include a plurality of inner ring fan blades and a plurality of outer ring fan blades; the plurality of inner ring fan blades are located between the outer ring and the rotating mounting portion, and the plurality of outer ring fan blades surround the outer periphery of the outer ring; the two opposite sides of the inner ring fan blades are an inner wind-receiving surface and an inner leeward surface, the inner wind-receiving surface being located on the side of the inner ring fan blade away from the baffle strip; the two opposite sides of the outer ring fan blades are an outer wind-receiving surface and an outer leeward surface, the outer wind-receiving surface being located on the side of the outer ring fan blade away from the baffle strip; at least a portion of the inner ring fan blades are configured such that at least a portion of the inner wind-receiving surface is connected to the outer wind-receiving surface.

[0012] Optionally, the rotating mounting part is a mounting ring, and the inner side of the mounting ring is provided with an annular protrusion or an annular recess. The mounting ring is used to rotatably fit onto the main body of the centrifugal atomizing device.

[0013] A centrifugal atomizing spraying device includes a centrifugal atomizing unit and a fan; the centrifugal atomizing unit includes a centrifugal atomizing disc, a device body, and an outer cover with fan blades as described above; the centrifugal atomizing disc, the device body, and the fan are arranged axially; the device body includes a driving device connected to the centrifugal atomizing disc, and the driving device is used to drive the centrifugal atomizing disc to rotate; the outer cover is rotatably mounted on the device body through the rotating mounting part, and a plurality of the partition strips surround the outer periphery of the centrifugal atomizing disc.

[0014] Optionally, the driving device is configured to drive the centrifugal atomizing disc to rotate in a first direction; the plurality of fan blades are configured such that when the airflow blown by the fan acts on the fan blades, the fan blades can drive the outer cover to rotate in a second direction; of the first direction and the second direction, one is a clockwise direction and the other is a counterclockwise direction.

[0015] Optionally, it also includes an air guide shroud, with an air inlet and an air outlet respectively provided at both ends of the air guide shroud, and the end of the air guide shroud with the air inlet is connected to the fan; the main body of the device is at least partially located inside the air guide shroud.

[0016] Optionally, the main body of the device further includes a flow guiding device for conveying liquid to the centrifugal atomizing disc.

[0017] Optionally, the fan blades are located on the side of the rotating mounting portion closer to the fan.

[0018] Optionally, the side of the fan blade near the fan is curved.

[0019] Optionally, the end of the fan blade closest to the fan is the air receiving end, and the end furthest from the fan is the air outlet end; the fan blade extends from the air receiving end to the air outlet end, and the fan blade extends circumferentially along the rotating mounting portion.

[0020] Optionally, the side of the rotating mounting part near the fan is the windward side, and the windward side extends outward in the direction away from the fan.

[0021] Optionally, the windward surface is an arc surface.

[0022] A mobile platform includes a platform body and a centrifugal atomizing spraying device as described above, wherein the centrifugal atomizing spraying device is installed on the platform body.

[0023] The beneficial effects of the present invention are as follows: the fan-bladed cover is suitable for use in conjunction with the centrifugal atomizing disc in a centrifugal atomizing spraying device. In the fan-bladed cover, the baffle strip can protect the centrifugal atomizing disc, and the cover can rotate under wind power, making it less likely for mist droplets to remain on the baffle strip, thus improving the user experience.

[0024] This centrifugal atomizing spraying equipment and the mobile platform equipped with it, through the cooperation of the centrifugal atomizing disc and the fan, not only has a good atomization effect, but also can better blow the droplets to the target area, resulting in high spraying efficiency and good effect. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is one of the structural schematic diagrams of the fan-bladed outer cover described in one embodiment of this application;

[0027] Figure 2 This is a second schematic diagram of the structure of the fan-bladed outer cover described in one embodiment of this application;

[0028] Figure 3 This is one of the structural schematic diagrams of the fan-bladed outer cover described in another embodiment of this application;

[0029] Figure 4 This is a second schematic diagram of the structure of the fan-bladed outer cover according to another embodiment of this application;

[0030] Figure 5 This is a third schematic diagram of the structure of the fan-bladed outer cover according to another embodiment of this application;

[0031] Figure 6 for Figure 5 Enlarged view of part A in the image;

[0032] Figure 7 for Figure 5 Enlarged view of part B in the image;

[0033] Figure 8 This is a schematic diagram of the centrifugal atomizing device in the centrifugal atomizing spraying equipment described in the embodiments of this application;

[0034] Figure 9 for Figure 8 Enlarged view of section C in the image;

[0035] Figure 10 This is a cross-sectional view of the centrifugal atomizing device in the centrifugal atomizing spraying equipment described in the embodiments of this application;

[0036] Figure 11 This is an exploded view of the flow guiding device, outer cover, connecting track, and centrifugal atomizing disc in the centrifugal atomizing spraying equipment described in the embodiments of this application;

[0037] Figure 12 This is one of the overall structural diagrams of the centrifugal atomizing spraying equipment described in the embodiments of this application;

[0038] Figure 13 This is the second overall structural diagram of the centrifugal atomizing spraying device described in the embodiments of this application;

[0039] Figure 14 This is a scene diagram of the mobile platform described in the embodiments of this application performing spraying operations (the droplet diagram is omitted in the figure);

[0040] Figure 15 This is a schematic diagram of the centrifugal atomizing disc structure described in the embodiments of this application;

[0041] Figure 16 This is a schematic diagram of the centrifugal atomizing disc area described in the embodiments of this application.

[0042] Figure 17 This is a schematic diagram of the outer cover according to an embodiment of this application.

[0043] Figure 18 This is a top view of the outer casing according to an embodiment of this application.

[0044] Figure 19 for Figure 18 A sectional view along direction D.

[0045] In the diagram: 10. Centrifugal atomizing disc; 11. Disc body; 1101. Atomizing surface; 12. Atomizing protrusion; 1201. Atomizing flow channel; 20. Flow guiding device; 21. Liquid inlet; 22. Flow guiding cavity; 23. Liquid outlet; 30. Drive device; 31. Fixing base; 32. Drive shaft; 40. Outer cover; 41. Rotating mounting part; 411. Annular protrusion; 4101. First outer peripheral surface; 42. Partition bar; 4201. Through channel; 421. Tip; 43. Outer ring; 4301. Second inner peripheral surface; 4302. Second outer peripheral surface; 4303. Front side of the ring. ; 4304, Rear side of the ring; 44, Fan blade; 45, Inner ring fan blade; 451, Inner wind-receiving surface; 46, Outer ring fan blade; 461, Outer wind-receiving surface; 462, Outer leeward surface; 471, Air inlet end; 472, Air outlet end; 473, Busbar; 474, Windward surface; 61, Fan; 62, Air guide cover; 6201, First expansion air duct; 6202, Second expansion air duct; 621, Air guide shell; 622, First tongue; 623, Second tongue; 70, Connecting rail; 80, Mounting base; 100, Centrifugal atomizing spraying equipment; 200, Platform body. Detailed Implementation

[0046] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] Spraying equipment has a wide range of applications. For example, in agricultural and forestry plant protection, it sprays pesticides, growth regulators, and other liquids onto target areas; in pest control, it sprays bactericides and disinfectants onto target areas; and so on. Many spraying devices used in agricultural and forestry plant protection and pest control scenarios employ pressure atomization technology, using compressed air or high-pressure nitrogen as power to propel liquids (such as pesticides) through nozzles, breaking them down into fine droplets. However, these pressure atomization spraying devices have poor applicability in some scenarios and present several problems. For example: First, although pressure atomization technology can break liquids into droplets, the size and distribution of the droplets are often not uniform, resulting in large and small droplets. Larger droplets may not effectively adhere to the target surface, while smaller droplets may be dispersed by the wind, causing waste and pollution. Second, spraying efficiency is relatively low. For large-area spraying needs, it is generally necessary to extend the working time of a single nozzle to spray more areas, or to increase the number of nozzles to cover a larger area.

[0050] Based on this, this application provides an outer cover with fan blades, which is used to cooperate with the centrifugal atomizing disc to protect the centrifugal atomizing disc.

[0051] This application also provides a centrifugal atomizing spraying device, which can be installed on mobile plant protection equipment, such as unmanned vehicles, or fixed in the environment, and of course, handheld use is also possible.

[0052] The centrifugal atomizing spraying equipment sprays atomized droplets radially outward through a centrifugal atomizing disc at the front end, while a fan delivers air from behind the disc to propel the droplets toward the target area. This centrifugal atomizing spraying equipment can expand the coverage area of ​​the fog field, and has high spraying efficiency and good results.

[0053] In this centrifugal atomizing spraying equipment, several baffles surround the outer perimeter of the centrifugal atomizing disc to protect the high-speed rotating disc. When using the centrifugal atomizing device to spray liquids (such as pesticides) onto agricultural and forestry crops, these baffles prevent foreign objects such as branches and twigs from reaching the disc and causing damage. The outer cover also prevents crops from being damaged by the disc and avoids injury to operators from disc breakage. Furthermore, the outer cover can rotate under wind power to address some problems that may arise during the centrifugal atomizing spraying process.

[0054] This application also provides a mobile platform, which can be, but is not limited to, driverless vehicles, manned vehicles, and drones.

[0055] It should be noted that, in the accompanying drawings of this application, to facilitate the description of the relative positions between the various components inside the centrifugal atomizing device and the centrifugal atomizing spraying equipment, the y-direction and x-direction are marked in the drawings. The y-axis direction is consistent with the central axis of the centrifugal atomizing spraying device and the centrifugal atomizing spraying equipment, and the x-direction is the radial direction. In the accompanying drawings, L1 illustrates the rotation axis of the outer cover and the rotation axis of the centrifugal atomizing disc, with the example of their rotation axes being collinear.

[0056] Please refer to Figures 1 to 14 The structure of the fan-bladed outer cover 40 and the centrifugal atomizing spraying device 100 of this application will be described below. Figure 1 , Figure 2 This illustrates the first type of outer cover 40 with fan blades. Figures 3 to 7 This illustrates the second type of outer cover 40 with fan blades. Figures 8 to 13 The diagram illustrates a part or the whole of the device. It should be noted that: Figures 8 to 13 The outer casing 40 omits the fan blade 44 structure, but in fact the outer casing 40 includes the fan blade 44. Figure 14 This illustration shows a scenario where the centrifugal atomizing spraying device 100 is applied to a mobile platform.

[0057] Reference Figure 12 , Figure 13 The centrifugal atomizing spraying equipment 100 includes: a centrifugal atomizing device and a blower 61.

[0058] The centrifugal atomizing device is used to atomize the liquid to be sprayed through the centrifugal atomizing disc 10, and to spray the atomized liquid approximately radially out of the centrifugal atomizing spraying device 100 through the centrifugal atomizing disc 10. The blower 61 is located axially rear of the centrifugal atomizing disc 10, and is used to blow the droplets sprayed from the centrifugal atomizing disc 10 towards the target area. The path of the droplets sprayed from the centrifugal atomizing spraying device 100 is approximately as follows... Figure 13 The bold dashed line in the figure is for illustrative purposes only and should not be taken as the sole limitation of this application.

[0059] Among them, reference Figures 8 to 11 The centrifugal atomizing device includes a main body, a centrifugal atomizing disc 10, and an outer cover 40. The main body includes a flow guiding device 20 and a drive device 30. Optionally, the centrifugal atomizing disc 10, the main body, and the fan 61 are arranged sequentially along the axial direction. The flow guiding device 20 is used to deliver liquid to the centrifugal atomizing disc 10. The drive device 30 includes a fixed base 31 and a drive shaft 32. The fixed base 31 of the drive device 30 is connected to and relatively fixed to the flow guiding device 20, and the drive shaft 32 is connected to the centrifugal atomizing disc 10. The drive device 30 is used to drive the centrifugal atomizing disc 10 to rotate around its central axis.

[0060] Optionally, the drive device 30 is a motor, the fixed base 31 is a motor base, and the drive shaft 32 is a motor shaft.

[0061] For example, the centrifugal atomizing disk 10 is provided with a plurality of atomizing channels 1201 distributed around its central axis. The flow guiding device 20 provides the flow guiding channels and is used to connect with the liquid supply device and to transport the liquid from the liquid supply device to the centrifugal atomizing disk 10 so that the liquid can enter the plurality of atomizing channels 1201. The driving device 30 can be, but is not limited to, a motor. By driving the centrifugal atomizing disk 10 to rotate, the liquid can be centrifugally thrown out, causing the atomized droplets to be sprayed out around the centrifugal atomizing disk 10.

[0062] Reference Figures 1 to 5 , Figures 9 to 11 The outer casing 40 includes a rotating mounting portion 41, a plurality of fan blades 44, and a plurality of baffles 42. The rotating mounting portion 41 has a first axis, the plurality of baffles 42 are arranged around the first axis, and the plurality of fan blades 44 are arranged around the first axis. The baffles 42 are indirectly or directly connected to the rotating mounting portion 41, and the fan blades 44 are indirectly or directly connected to the rotating mounting portion 41.

[0063] To facilitate the description of the relative positional relationships between the various parts inside the outer cover 40, a first plane and a second plane are defined. The first plane is a plane perpendicular to the first axis, and the second plane is a plane parallel to the second axis.

[0064] It is understandable that the arrangement of several partition bars 42 around the first axis can be achieved at least in the following ways: First, as... Figures 1 to 4 , Figures 9 to 11To illustrate, a plurality of partition bars 42 at least partially surround the outer periphery of the rotating mounting portion 41; in other words, the orthographic projection of the rotating mounting portion 41 in the second plane at least partially overlaps with the orthographic projection of the partition bars 42 in the second plane. Secondly, the axial positions of the plurality of partition bars 42 are completely offset from the axial positions of the rotating mounting portion 41; in other words, the orthographic projection of the rotating mounting portion 41 in the second plane does not overlap with the orthographic projection of the partition bars 42 in the second plane and is offset from each other. Similarly, the plurality of fan blades 44 arranged around the first axis can be achieved at least in the following ways: first, the plurality of fan blades 44 at least partially surround the outer periphery of the rotating mounting portion 41; second, the axial positions of the plurality of fan blades 44 are offset from the axial positions of the rotating mounting portion 41.

[0065] In the centrifugal atomizing device, the outer cover 40 is rotatably mounted to the main body of the device via a rotating mounting part 41. Several baffles 42 surround the outer periphery of the centrifugal atomizing disk 10 to protect it. Adjacent baffles 42 are spaced apart from each other, and the gap between adjacent baffles 42 is a passage 4201. The passage 4201 allows the atomized droplets ejected by the centrifugal atomizing disk 10 to pass through. The outer cover 40 does not affect the function of the centrifugal atomizing disk 10 in ejecting atomized droplets outward.

[0066] The rotating mounting part 41 is rotatably connected to the main body of the device, so that when the centrifugal atomizing spraying equipment 100 is in operation, the outer cover 40 with fan blades can rotate relative to the main body of the device under the action of wind. For example, the rotating mounting part 41 is rotatably connected to the flow guiding device 20, or the rotating mounting part 41 is rotatably connected to the fixed base 31 of the drive device 30.

[0067] The centrifugal atomizing spraying device 100 can be used to spray pesticides on crops. For example, when an unmanned vehicle is equipped with the centrifugal atomizing spraying device 100 and needs to spray pesticides on agricultural and forestry crops such as dragon fruit and corn plants, the unmanned vehicle moves within the field, and the centrifugal atomizing device operates. The high-speed rotating centrifugal atomizing disc 10 generates centrifugal force to disperse and atomize the liquid into fine droplets. These droplets are then sprayed and thrown out roughly along the radial direction of the centrifugal atomizing disc 10, which is located in front of a fan 61. The fan 61 blows air forward to direct the droplets thrown out by the centrifugal atomizing disc 10 towards the target area, reaching the crops. Compared to pressure atomization, this centrifugal atomizing spraying device 100, using centrifugal atomization, provides better atomization and higher spraying efficiency, making it suitable for application in the field of agricultural and forestry plant protection pesticide spraying.

[0068] In the centrifugal atomizing device 100 of this application, the outer cover 40 serves to protect the centrifugal atomizing disc 10. For example, if corn leaves or other leaves or foreign objects accidentally extend into the area near the centrifugal atomizing disc 10, they will first be blocked by the baffles 42 surrounding the centrifugal atomizing disc 10. The baffles 42 of the outer cover 40 prevent leaves or foreign objects from approaching the centrifugal atomizing disc 10. Specifically, when the centrifugal atomizing disc 10 is rotating, the baffles 42 prevent leaves or other foreign objects from being drawn into the centrifugal atomizing disc 10, thus preventing damage to the centrifugal atomizing disc 10 or the crop. When the centrifugal atomizing disc 10 is in a standby state without rotation, the baffles 42 block leaves or other foreign objects, preventing them from scratching or damaging the centrifugal atomizing disc 10. The baffles 42 of the outer cover 40 also protect personnel from injury caused by a breakage of the centrifugal atomizing disc 10, thus solving the problem of the centrifugal atomizing disc 10 being directly exposed.

[0069] In one embodiment, to achieve better spraying results, the centrifugal atomizing device is configured such that, when the centrifugal atomizing device is in the atomizing spraying working state, the rotation axis of the centrifugal atomizing disk 10 is parallel to the horizontal plane or the angle between it and the horizontal plane is less than 30 degrees. Figure 14 The diagram illustrates that when the centrifugal atomizing device is in operation, the back of the centrifugal atomizing disc 10 is approximately to the left or right. With the help of the fan 61, it can spray the liquid medicine onto the plants on the left or right side of the movable platform 200. In the diagram, L1 indicates the rotation axis of the centrifugal atomizing disc 10, and L2 indicates the horizontal plane. The rotation axis L1 of the centrifugal atomizing disc 10 is basically parallel to the horizontal plane L2. That is, the axial direction of the centrifugal atomizing device is arranged in an approximately horizontal direction, and the rotation plane of the centrifugal atomizing disc 10 is set approximately along a vertical plane perpendicular to the horizontal plane.

[0070] The inventors discovered that when the centrifugal atomizing device has an outer cover 40, if the outer cover 40 remains stationary while the centrifugal atomizing disc 10 rotates to eject atomized droplets during operation, some droplets may settle on the baffle strip 42. These settled droplets are those that were not sprayed out and remain nearby. The droplets accumulating on the baffle strip 42 may cause some problems: if the mobile platform is a ground-based work platform such as an unmanned vehicle, the users can see the settled droplets on the baffle strip 42 because of the centrifugal atomizing spraying device 100 mounted on the mobile platform. This makes users feel that these droplets are not being blown out, which feels wasteful and negatively impacts the user experience.

[0071] In the centrifugal atomizing spraying device 100 of this application, while a plurality of baffles 42 of the outer cover 40 surround the centrifugal atomizing disk 10, the outer cover 40 is configured to be rotatable, which can reduce the liquid settling on the baffles 42, avoid or reduce the accumulation of large droplets on the baffles 42, and prevent the user from seeing large droplets deposited on the outer cover 40.

[0072] Furthermore, the outer casing 40 is equipped with fan blades 44. When the airflow from the fan 61 is delivered to the outer casing 40, the fan blades 44 are exposed to the airflow, and driven by the airflow, the outer casing 40 can rotate relative to the guide device 20 or the fixed base 31 of the drive device 30. Compared to configuring a separate motor to drive the outer casing 40 to rotate, the centrifugal atomizing spraying device 100 of this application utilizes the airflow from the fan 61 acting on the fan blades 44 of the outer casing 40 to drive the outer casing 40 to rotate during spraying operations. This eliminates the need for a dedicated additional motor, reducing the cost and weight of the centrifugal atomizing spraying device 100. It also eliminates the need to consider how the drive device 30 used to drive the centrifugal atomizing disc 10 to rotate and the motor used to drive the outer casing 40 to rotate are assembled and coordinated. The structure of the centrifugal atomizing spraying device 100 of this application is simpler.

[0073] In this application, the surrounding outer cover 40 of the centrifugal atomizing disc 10 with several baffles 42 not only provides protection but also eliminates atomization sedimentation, reduces droplet velocity, makes droplets easier to control by the wind field, reduces the power requirement of the fan 61, and makes the fog field more stable. Furthermore, the baffles 42 can also further disperse and atomize the droplets, resulting in finer atomized particles.

[0074] The centrifugal atomizing device in the centrifugal atomizing spraying equipment 100 of this application has excellent spraying effect: First, it can disperse liquid into smaller droplets, and the droplet size can be controlled more uniformly, avoiding the situation where some droplets are very large and some are very small. Second, it can form a wider spray coverage area, allowing the pesticide to cover the target area more evenly, resulting in better spraying effect and higher spraying efficiency. Third, it has strong adjustability; the droplet size and spray volume can be controlled by adjusting parameters such as rotation speed and liquid flow rate to meet different operational needs and achieve precise atomization control. This flexibility allows pesticide spraying to be precisely adjusted according to different crop types, growth stages, and pest and disease conditions. Fourth, compared with pressure nozzles, the flow channels inside the centrifugal atomizing disc 10 are less prone to clogging. Fifth, centrifugal atomizing spraying is suitable for a variety of pesticide formulations, including but not limited to powders, suspensions, emulsifiable concentrates, and other pesticides with poor water solubility, expanding the range of pesticide choices.

[0075] The centrifugal atomizing spraying device 100 of this application can spray pesticides by using a centrifugal atomizing disc 10 in conjunction with a blower 61. Compared with conventional pressure atomizing spraying, it has the following effects: First, it can obtain finer atomized droplets. The fine droplets, combined with the blowing action of the wind, can penetrate the crop canopy more deeply, covering more leaves and fruit surfaces, thus improving the utilization rate and control effect of pesticides. Second, it can cover a larger spraying area. The blower 61 can expand the coverage range of the droplets to improve spraying efficiency. Third, it can improve spraying efficiency. Centrifugal atomizing spraying combined with the blowing action of the blower 61 can deliver the droplets directly to the target area, reducing the dispersion and waste of pesticide in the air and improving spraying efficiency. It is not only suitable for pesticide spraying in large areas of farmland, but also for the fine management of small-scale crops such as orchards and vegetable gardens.

[0076] The mobile platform of this application is equipped with a centrifugal atomizing spraying device 100. Through the cooperation of the centrifugal atomizing spraying device, a fan 61, and the platform body 200, the mobile platform can move and automatically spray pesticides in the field. The technology of this application has high application value in modern agriculture. This spraying method is suitable for a variety of crops and has advantages such as adjustable spray volume, adjustable droplet size, good atomization spraying effect, improved work efficiency, and reduced labor costs.

[0077] The mobile platform of this application is suitable for spraying pesticides on various types of crops. For example, for low-growing crops (peanuts, sweet potatoes, etc.), the centrifugal atomizing sprayer can easily cover all parts of the plant by adjusting the angle of the centrifugal atomizing sprayer 100°, ensuring uniform pesticide spraying. For medium-growing crops (cotton, soybeans, trellis cucumbers, trellis eggplants, corn, lemons, wheat, etc.), the centrifugal atomizing device, in conjunction with a suitable fan 61, can effectively blow pesticide droplets onto the leaves and stems of the crop, improving the spraying effect.

[0078] The mobile platform is equipped with a centrifugal atomizing spraying device 100. The mobile platform can adjust its travel speed according to the height and density of the crops. The spraying angle can be adjusted by adjusting the angle of the centrifugal atomizing spraying device 100 to accurately spray the target area.

[0079] When applied to agricultural and forestry plant protection, this mobile platform can travel in fields such as farmland, orchards, and vegetable gardens. Figure 14The illustration shows that spraying pesticides onto crop plants from the side yields good results. This mobile platform centrifugal atomizing sprayer 100, due to its centrifugal atomization device combined with a blower 61, provides droplets with a certain degree of penetration. The droplets can more accurately reach the target crop plants, and their small size and uniform distribution allow them to enter the interior of the crop plants through the gaps between leaves, facilitating more complete coverage of leaves and fruits. This improves the problem of uneven pesticide application between the outer and inner areas of the crop (e.g., the outer edges of leaves may receive pesticide, but the roots may not), and also improves the uneven application between the top and bottom of the crop, thus enhancing the control effect.

[0080] In one embodiment, when the centrifugal atomizing spraying device 100 is in operation, the outer cover 40 and the centrifugal atomizing disk 10 rotate in opposite directions. The drive device 30 is configured to drive the centrifugal atomizing disk 10 to rotate in a first direction; the fan blades 44 in the blade assembly are configured such that when the airflow blown by the fan 61 acts on the fan blades 44, the fan blades 44 can drive the outer cover 40 to rotate in a second direction; one of the first direction and the second direction is clockwise, and the other is counterclockwise. Figure 8 In the diagram, F1 indicates the rotation direction of the centrifugal atomizing disc 10, and F2 indicates the rotation direction of the outer cover 40.

[0081] Optionally, the rotation axis of the outer cover 40 is collinear with the rotation axis of the centrifugal atomizing disk 10.

[0082] Optionally, when the centrifugal atomizing device is in operation, the rotation direction of the outer cover 40 is opposite to the rotation direction of the centrifugal atomizing disk 10, and the rotation speed of the outer cover 40 is lower than that of the centrifugal atomizing disk 10.

[0083] In other embodiments, when the centrifugal atomizing spraying device 100 is in operation, the outer cover 40 and the centrifugal atomizing disc 10 rotate in the same direction.

[0084] When the centrifugal atomizing spraying device 100 is in operation, compared to a fixed outer cover 40, a design where the outer cover 40 rotates in either the opposite or forward direction to the centrifugal atomizing disc 10 is beneficial in reducing the formation of droplets on the outer ring of the outer cover 40's baffles 42. When the outer cover 40 is fixed, the baffles 42 are in a fixed position, making it easier for droplets to remain on them. However, whether the outer cover 40 rotates in the opposite or forward direction, the baffles 42 have a certain tendency to move, making it less likely for droplets to remain on them. Therefore, a fan-bladed outer cover 40 rotatably mounted on the main body of the device is beneficial in reducing the amount of liquid remaining on the baffles 42 of the outer cover 40.

[0085] When the centrifugal atomizing spraying device 100 is in operation, and the outer cover 40 rotates in the opposite direction to the centrifugal atomizing disc 10 (for example, the outer cover 40 rotates in the opposite direction at a low speed), at least one of the following effects can be achieved: First, because the outer cover 40 rotates in the opposite direction, the baffle strip 42 has a movement tendency opposite to that of the droplets, making it easier for the droplets to leave the baffle strip 42, and preventing the formation of large droplets on the baffle strip 42. Second, taking the centrifugal atomizing disc 10 rotating clockwise and the outer cover 40 rotating counterclockwise as an example, the movement tendency of the droplets sprayed by the centrifugal atomizing disc 10 is opposite to the rotation tendency of the outer cover 40, making it less likely for the droplets in the air to settle on the baffle strip 42. In this way, the amount of liquid settling on the baffle strip 42 can be reduced, thereby improving the user experience and preventing the droplets settling on the baffle strip 42 from subsequently dripping and contaminating other areas. Third, the baffle strips 42 of the counter-rotating outer cover 40 can reduce the velocity of the centrifugally ejected droplets, making it easier for the droplets to be controlled by the airflow blown by the fan 61. This allows the atomized droplets to be stably blown to the target area by the fan 61, resulting in a more stable fog field. Fourth, the baffle strips 42 of the counter-rotating outer cover 40 can better disperse the fog droplets, resulting in a better secondary atomization effect.

[0086] The fan blades 44 can be arranged in at least the following ways:

[0087] First, a plurality of baffles 42 form a baffle assembly, and fan blades 44 are arranged on the outer side of the rotating mounting portion 41 and the inner side of the baffle assembly. That is, the plurality of fan blades 44 are located on the side of the plurality of baffles 42 close to the rotating mounting portion 41, and the plurality of fan blades 44 are arranged in the inner ring of the plurality of baffles 42. The inner ring of fan blades 44 is close to the rotating mounting portion 41, so that when the fan blades 44 are exposed to wind, the rotational driving force can be transmitted to the rotating mounting portion 41 more quickly.

[0088] When fan blades 44 are arranged in the inner ring of several partition bars 42, the partition bars 42 and the rotating mounting part 41 can be connected by the fan blades 44, or additional connecting ribs can be provided between the partition bars 42 and the rotating mounting part 41 to achieve the connection between the two. Taking the outer cover 40 including an outer ring 43 as an example, with several partition bars 42 installed on the outer ring 43, the outer ring 43 and the rotating mounting part 41 can be connected by the fan blades 44 in the inner ring (the two ends of the fan blades 44 are respectively connected to the rotating mounting part 41 and the outer ring 43), or they can be connected by additional ribs (one end of the fan blades 44 is connected to the rotating mounting part 41 or the outer ring 43, and the other end is a free end).

[0089] Second, a plurality of baffles 42 form a baffle assembly, and fan blades 44 are arranged on the outer side of the baffle assembly. That is, a plurality of fan blades 44 are located on the side of the plurality of baffles 42 away from the rotating mounting part 41, and a plurality of fan blades 44 are arranged on the outer ring of the plurality of baffles 42. The size of the fan blades 44 is less restricted because the baffles 42 are located on the side away from the rotating mounting part 41, and the fan blades 44 can be set to be larger to increase the wind-receiving area and provide greater rotational driving force when the wind acts on the fan blades 44 of the outer cover 40.

[0090] Third, such as Figures 3 to 5 As shown, fan blades 44 are arranged in both the inner and outer rings of several baffles 42, which can increase the wind-receiving area of ​​the fan blades 44 and better drive the outer cover 40 to rotate.

[0091] Figure 1 , Figure 2 The diagram illustrates a single ring of fan blades 44, with the fan blades 44 positioned within the inner ring. Figures 3 to 5 The illustration shows two concentric rings of fan blades 44, one ring of fan blades 44 on the inner ring and the other ring of fan blades 44 on the outer ring. In other embodiments, three or more rings of fan blades 44 may also be provided.

[0092] In one embodiment, refer to 1 to Figure 5 The rotating mounting portion 41 and the fan blades 44 are arranged approximately in the same axial space. Several fan blades 44 surround the outside of the rotating mounting portion 41, such that the orthographic projection of the rotating mounting portion 41 on the second plane overlaps with the orthographic projection of the fan blades 44 on the second plane, that is, the fan blades 44 at least partially cover the outside of the rotating mounting portion 41. Since the outer cover 40 is mounted on the main body of the device (such as on the flow guide device 20) through the rotating mounting portion 41, and the fan blades 44 are the position for generating rotational driving force, arranging the fan blades 44 and the rotating mounting portion 41 in approximately the same axial space, compared with the scheme in which the fan blades 44 and the rotating mounting portion 41 are completely offset in the axial direction, can better and more efficiently transmit torque, and efficiently utilize the wind power of the fan 61 to drive the outer cover 40 to rotate.

[0093] Understandably, with several baffles 42 surrounding the outer casing 40 around the centrifugal atomizing disk 10, the droplets ejected from the centrifugal atomizing disk 10 impact the baffles 42, causing the outer casing 40 to tend to rotate in the same direction as the centrifugal atomizing disk 10. By arranging the fan blades 44 and the rotating mounting portion 41 approximately in the same axial space, the rotational driving force generated on the fan blades 44 can be efficiently transmitted to the rotating mounting portion 41, allowing the outer casing 40 to overcome the rotational force of the droplets under the action of wind, causing the outer casing 40 to rotate in the opposite direction to the centrifugal atomizing disk 10. Alternatively, by increasing the wind-receiving surface area of ​​the fan blades 44, the outer casing 40 can rotate in the opposite direction to the centrifugal atomizing disk 10 under the action of wind.

[0094] Of course, in other embodiments, the fan blade 44 and the rotating mounting portion 41 may also be configured to be offset in the axial position, that is, the orthographic projection of the rotating mounting portion 41 on the second plane is completely offset from the orthographic projection of the fan blade 44 on the second plane.

[0095] In one embodiment, reference is made to Figures 1 to 7 The outer cover 40 also includes an outer ring 43, which surrounds the outer periphery of the rotating mounting portion 41. The two axially opposite surfaces of the outer ring 43 are a front side 4303 and a rear side 4304. Several spacer bars 42 are connected to the front side 4303, and the outer ring 43 is connected to the rotating mounting portion 41. Exemplarily, the outer ring 43 is connected to the rotating mounting portion 41 via the fan blades 44 of the inner ring, or the outer ring 43 is connected to the rotating mounting portion 41 via additional connecting ribs. In the case where there is a radial gap between the spacer bars 42 and the rotating mounting portion 41, in this embodiment, an outer ring 43 is provided so that several spacer bars 42 are all connected to the same outer ring 43, forming a cover surrounding the centrifugal atomizing disk 10. The outer ring 43 is then connected to the rotating mounting portion 41, resulting in a more stable and simpler structure. Furthermore, with the outer ring 43 provided, the fan blades 44 can be easily positioned between the outer ring 43 and the rotating mounting portion 41 as needed.

[0096] Optionally, the first end of the partition strip 42 is connected to the front side 4303 of the ring, and the second end extends axially away from the outer ring 43, and the second end is a free end.

[0097] In other embodiments, the outer ring 43 may be omitted, and each partition bar 42 may be connected to the rotating mounting part 41 by a radially extending connecting rib.

[0098] In one embodiment, the rotating mounting portion 41 has a first outer peripheral surface 4101 on the side near the outer ring 43. The outer ring 43 has a second inner peripheral surface 4301 on the side near the first axis of the rotating mounting portion 41, and a second outer peripheral surface 4302 on the side of the outer ring 43 away from the first axis of the rotating mounting portion 41. (Refer to...) Figure 1 , Figure 5 The first outer peripheral surface 4101 and the second inner peripheral surface 4301 are spaced apart to form an annular through hole between the inner side of the outer ring 43 and the outer side of the rotating mounting part 41. The annular through hole extends axially. (Refer to...) Figure 1 , Figure 3 , Figure 5 , Figures 8 to 11Taking the rotating mounting part 41 as an example, where the mounting ring is rotatably fitted onto the outer periphery of the flow guiding device 20, the partition strip 42 needs to be a certain radial distance from the first axis of the rotating mounting part 41 so that several partition strips 42 surround the outer periphery of the centrifugal atomizing disk 10 without affecting the rotation of the centrifugal atomizing disk 10. In this embodiment, the spacing between the outer ring 43 and the rotating mounting part 41 is beneficial to ensure that the radial position of the partition strip 42 meets the requirements (the partition strip 42 is spaced around the outer periphery of the centrifugal atomizing disk 10 and is spaced from the centrifugal atomizing disk 10), and also reduces material and weight.

[0099] In one embodiment, the outer ring 43 is spaced apart from the rotating mounting portion 41, and an annular through hole is formed between the first outer peripheral surface 4101 and the second inner peripheral surface 4301. A plurality of fan blades 44 are inner ring fan blades 45, and the plurality of inner ring fan blades 45 are distributed around the first axis within the annular through hole. The outer ring 43 is connected to the rotating mounting portion 41 through at least a portion of the inner ring fan blades 45, that is, all or part of the inner ring fan blades 45 are configured such that one end is connected to the rotating mounting portion 41 and the other end is connected to the outer ring 43.

[0100] In this embodiment, the radial interval between the outer ring 43 and the rotating mounting part 41 not only provides the position of the inner ring fan blade 45, but also allows the inner ring fan blade 45 to be set near the rotating mounting part 41 to provide the rotational driving force of the outer cover 40 near the rotating mounting part 41. Furthermore, the inner ring fan blade 45 can be used as a transition part to realize the connection between the outer ring 43 and the rotating mounting part 41. There is no need to configure additional ribs to connect the outer ring 43 and the rotating mounting part 41, reducing the weight of additional ribs and making the outer cover 40 easy to rotate under wind power.

[0101] Optionally, the inner fan blade 45, which connects the outer ring 43 and the rotating mounting portion 41, is configured such that one end is connected to the first outer peripheral surface 4101 of the rotating mounting portion 41, and the other end is connected to the second inner peripheral surface 4301 of the outer ring 43. This connection method is stable and efficient, and facilitates the transmission of rotational driving force to the rotating mounting portion 41.

[0102] In one embodiment, the fan blades 44 in the outer casing 40 can be divided into inner fan blades 45 and outer fan blades 46 according to their radial position. For example... Figures 3 to 5 As shown, the outer cover 40 is provided with two rings of fan blades 44, and a number of inner ring fan blades 45 are located between the rotating mounting part 41 and the outer ring 43, and the number of inner ring fan blades 45 surround the outer periphery of the rotating mounting part 41; a number of outer ring fan blades 46 surround the outer periphery of the outer ring 43.

[0103] The inner fan blades 45 and outer fan blades 46 in the outer casing 40 can be configured in at least two ways: First, as shown in the following two ways... Figures 3 to 5This indicates that, at least partially, the inner fan blade 45 and the outer fan blade 46 are directly connected. Secondly, the inner fan blade 45 and the outer fan blade 46 are independent of each other, and there is no direct connection between them.

[0104] Optionally, at least a portion of the inner fan blades 45 are configured to be directly connected to at least a portion of the outer fan blades 46, with at least a portion of the inner air-receiving surface 451 connected to the outer air-receiving surface 461. The inner fan blades 45 have an inner air-receiving surface 451 and an inner leeward surface on opposite sides of their axial direction. The inner air-receiving surface 451 is located on the side of the inner fan blades 45 away from the baffle bar 42 and on the side of the inner fan blades 45 closest to the fan 61. The outer fan blades 46 have an outer air-receiving surface 461 and an outer leeward surface 462 on opposite sides of their axial direction. The outer air-receiving surface 461 is located on the side of the outer fan blades 46 away from the baffle bar 42 and on the side of the outer fan blades 46 closest to the fan 61. By connecting the inner air-receiving surface 451 with the outer air-receiving surface 461, the inner fan blade 45 and the outer fan blade 46 can be used as the same fan blade 44. The part where the inner air-receiving surface 451 and the outer air-receiving surface 461 are connected can provide an airflow guiding path. After the airflow blown by the fan 61 comes into contact with the inner air-receiving surface 451, it can flow from the position where the inner air-receiving surface 451 and the outer air-receiving surface 461 are connected to the outer air-receiving surface 461, and continue to flow outward under the guidance of the outer air-receiving surface 461. During the flow of the air on the air-receiving surface, the gas continuously applies thrust to the fan blade 44, generating rotational force on the outer casing 40. Therefore, the inner air-receiving surface 451 and the outer air-receiving surface 461 are at least partially connected, which is beneficial to improving the airflow utilization rate and the efficiency of wind-driven rotation of the outer casing 40.

[0105] Optionally, some or all of the inner fan blades 45 are configured such that a portion of the inner air-receiving surface 451 is connected to the second inner circumferential surface 4301, and a portion is connected to the outer air-receiving surface 461. This provides a high connection strength between the inner fan blades 45 and the outer ring 43, and allows the inner air-receiving surface 451 to connect with the outer air-receiving surface 461. Alternatively, some or all of the outer fan blades 46 are configured such that a portion of the outer air-receiving surface 461 is connected to the second outer circumferential surface 4302, and a portion is connected to the inner air-receiving surface 451. This provides a high connection strength between the outer fan blades 46 and the outer ring 43, and allows the inner air-receiving surface 451 to connect with the outer air-receiving surface 461.

[0106] In one embodiment, the outer casing 40 includes an inner ring of fan blades 45 located between the outer ring 43 and the rotating mounting portion 41, and an outer ring of fan blades 46 located around the outer ring 43. The positions of the inner ring blades and the outer ring blades correspond one-to-one, such that each inner ring blade is at least partially connected to an outer ring blade.

[0107] Optionally, the entire outer casing 40 is a one-piece molded structure, resulting in high structural strength. For example, the rotating mounting portion 41 is integrally connected to the inner fan blade 45, the inner fan blade 45 to the outer fan blade 46, the inner fan blade 45 to the outer ring 43, and the outer fan blade 46 to the outer ring 43. Of course, in other embodiments, the outer casing 40 can also be formed by assembling several components.

[0108] In one embodiment, the rotating mounting part 41 is a mounting ring surrounding the first axis. The inner side of the mounting ring is provided with an annular protrusion 411 or an annular recess. The annular protrusion or annular recess is used to rotatably connect with the main body of the centrifugal atomizing device, so that the outer cover 40 is rotatably mounted on the main body of the centrifugal atomizing device. Using a hollow mounting ring as the rotating mounting part 41 allows the mounting ring of the outer cover 40 to be fitted onto the outside of the flow guiding device 20 during installation. This achieves rotatable installation of the outer cover 40 while: firstly, the outer cover 40 does not occupy the space between the flow guiding device 20 and the centrifugal atomizing disk 10, and does not affect the fit between the flow guiding device 20 and the centrifugal atomizing disk 10; secondly, the contact area between the outer cover 40 and the flow guiding device 20 is large, resulting in a more stable connection, better protection of the centrifugal atomizing disk 10, and less likelihood of vibration. Optionally, an annular connecting track 70 is provided on the outside of the flow guiding device 20, and the mounting ring is rotatably mounted on the connecting track 70.

[0109] In other embodiments, the rotating mounting part 41 may also be a solid columnar structure, which is rotatably mounted on one side of the flow guiding device 20 in the axial direction via a rotating shaft.

[0110] In one embodiment, reference is made to Figure 9 The baffle 42 has atomizing teeth, and its inner side has a pointed tip 421. The inner side of the baffle 42 refers to the side of the baffle 42 that is close to the centrifugal atomizing disk 10. The pointed tip 421 is used to disperse droplets. When droplets ejected by the centrifugal atomizing disk 10 come into contact with the pointed tip 421 of the baffle 42, the droplets are dispersed again by the pointed tip 421 of the baffle 42, thus achieving the effect of re-atomization of the droplets.

[0111] In one embodiment, reference is made to Figure 12 , Figure 13 The centrifugal atomizing spraying device 100 also includes an air guide shroud 62. The air guide shroud 62 has an air inlet and an air outlet (illustrated but not marked in the figure) at its two axial ends. The end of the air guide shroud 62 with the air inlet is connected to the fan 61. Through its specific design shape, the air guide shroud 62 can guide the surrounding airflow along a predetermined path. When used in conjunction with the fan 61, the air guide shroud 62 allows the mist droplets to be more accurately delivered to the target area under the action of wind, reducing mist droplet dispersion and waste, and lowering the power requirements of the fan 61.

[0112] The inventors discovered that, when the air guide shroud 62 is configured, during operation of the centrifugal atomizing spraying device 100, after the centrifugal atomizing disc 10 in the central area sprays droplets roughly radially outwards, most of the droplets can continue to move towards the front of the spraying device under the airflow from the fan 61, thus achieving the spraying operation. However, if the outer cover 40 does not rotate during spraying, some droplets formed on the baffle strips 42 of the outer cover 40 may be sucked back, for example, backflow may occur in the lower part of the outer cover 40, which is aesthetically unappealing and may contaminate the outer cover 40, the main body of the device, and the fan 61. After adjustments, the inventors discovered that configuring the outer cover 40 to rotate in the opposite direction at a low speed during spraying can reduce the droplets formed or settled on the baffle strips 42 of the outer cover 40, overcome the phenomenon of droplets being sucked back near the outer cover 40, and improve the user experience.

[0113] The main body of the centrifugal atomizing device is located inside the air guide shroud 62, meaning the air guide shroud 62 at least covers the outside of the main body. Optionally, the mounting base 31 of the drive device 30 is connected to the fan 61 or the air guide shroud 62, so the drive device 30 is at least located inside the air guide shroud 62. The position of the centrifugal atomizing disc 10 can be in the following two ways:

[0114] First, such as Figure 13 As shown, in the axial direction of the centrifugal atomizing spraying device 100, the centrifugal atomizing disc 10 is located outside the air guide shroud 62, that is, the centrifugal atomizing disc 10 is located on the side of the air guide shroud 62 away from the fan 61, and the air guide shroud 62 does not cover the outer periphery of the centrifugal atomizing disc 10.

[0115] Understandably, when the centrifugal atomizing sprayer 100 is mounted on an unmanned vehicle, it is used to spray pesticides onto crops to the side of the vehicle, such as to the left, right, front, and rear of the vehicle. By placing the centrifugal atomizing disc 10 outside the air guide shroud 62, preventing the shroud 62 from surrounding the outer edge of the disc, during spraying operations (e.g., when the centrifugal atomizing sprayer 100 is configured to spray pesticides to the left or upper left of the vehicle), a small portion of the droplets sprayed outwards from the disc 10 are reduced or prevented from floating in the air and eventually settling on the inner wall of the air guide shroud 62. This reduces the possibility of droplets forming on the inner wall of the air guide shroud 62, minimizing pollution and waste, and improving the user experience. It is also understandable that when the centrifugal atomizing disc 10 is located outside the air guide shroud 62, the outer cover 40 has several baffles 42 surrounding the outer periphery of the centrifugal atomizing disc 10, which serve to protect the exposed centrifugal atomizing disc 10.

[0116] Second, not shown in the figure, the centrifugal atomizing disc 10 is located inside the air guide shroud 62 in the axial direction of the centrifugal atomizing spraying device 100.

[0117] Optionally, the air guide shroud 62 includes an air guide housing 621, with the air inlet and outlet being openings at both ends of the air guide housing 621. The air guide housing 621 may have internal structures such as tongues as needed. The air guide housing 621 is hollow and configured such that the cross-sectional area of ​​its internal space gradually increases from the end closest to the fan 61 to the end furthest from the fan 61, thereby expanding the spray coverage area.

[0118] Optionally, the shape of the air guide housing 621 is such that its vertical dimension is larger than its horizontal dimension, and the air guide housing 621 has an approximately trumpet-shaped structure. In this way, the air guide shroud 62 expands the vertical spray width of the spraying equipment, enabling it to cover a larger spray area in the vertical direction. The air guide shroud 62 includes the air guide housing 621 and a first tongue 622 and a second tongue 623 disposed inside the air guide housing 621. The first tongue 622 and the second tongue 623 are located on the upper and lower sides of the centrifugal atomizing device. A first widening air duct 6201 is formed between the inner wall of the air guide housing 621 and the first tongue 622, and a second widening air duct 6202 is formed between the inner wall of the air guide housing 621 and the second tongue 623. Both the first widening air duct 6201 and the second widening air duct 6202 are configured to extend from one end of the air inlet to one end of the air outlet in a direction away from the central axis of the air guide shroud 62, thereby achieving the effect of expanding the vertical spray area.

[0119] Understandably, the droplets sprayed outwards from the centrifugal atomizing disc 10 first pass through the outer cover 40. When the droplets pass through the baffle strip 42, the baffle strip 42 can reduce the speed at which the droplets fly out radially centrifugally. In this way, when the droplets reach the air delivery area, they are more easily controlled by the forward-blowing airflow, allowing the airflow to blow the droplets forward and making the mist field of the centrifugal atomizing spraying device 100 more stable. It is also understandable that the baffle strip 42 facilitates secondary atomization of the droplets, allowing for the acquisition of smaller droplets without increasing the rotational speed of the centrifugal atomizing disc 10 or the wind speed of the fan 61.

[0120] In one embodiment, the rotating mounting portion 41 is located on the side of the centrifugal atomizing disc 10 close to the main body of the device. Exemplarily, the centrifugal atomizing disc 10 is located in front of the flow guiding device 20, and the portion of the outer cover 40 connected to the main body of the device (the rotating mounting portion 41) is located behind the centrifugal atomizing disc 10. This has the following effects: First, the centrifugal atomizing disc 10 can be removed from the front of the device without disassembling the outer cover 40, for example, by removing the bolts connecting the centrifugal atomizing disc 10 to the motor shaft. Thus, when the centrifugal atomizing disc 10 becomes clogged and needs maintenance, or when it needs to be replaced to adjust the atomization effect, the centrifugal atomizing disc 10 can be quickly disassembled and replaced. Second, the rotating mounting portion 41 of the outer cover 40 is closer to the fan 61. When the outer cover 40 is rotatably mounted on the flow guiding device 20 and has fan blades 44, the fan blades 44 are closer to the fan 61, allowing the outer cover 40 to rotate around the flow guiding device 20 under the blowing action of the fan 61. Third, the rotating mounting part 41 can be a mounting ring and fitted onto the outside of the flow guiding device 20. In this way, the contact area between the outer cover 40 and the flow guiding device 20 is large, the connection is more stable, the outer cover 40 has a good protective effect on the centrifugal atomizing disc 10, and it is not easy to shake.

[0121] In one embodiment, the outer cover 40 has a front opening located inside a plurality of baffles 42, with the side of the centrifugal atomizing disc 10 facing away from the flow guiding device 20 fully exposed through the front opening. Taking the fan 61, drive device 30, flow guiding device 20, and centrifugal atomizing disc 10 arranged from back to front as an example, there are no connecting ribs or connecting plates between the front ends of the baffles 42, preventing droplets sprayed from the centrifugal atomizing disc 10 from settling onto the connecting ribs or connecting plates. In other words, the front opening of the outer cover 40 can reduce or prevent the settling of droplets on the outer cover 40, improving the user experience.

[0122] In one embodiment, the centrifugal atomizing disc 10 includes a disc body 11 and at least one set of atomizing groups. The disc body 11 has an atomizing surface 1101, and the atomizing groups are disposed on the atomizing surface 1101. Each atomizing group includes atomizing protrusions 12 spaced apart around the center line of the disc body 11, and an atomizing flow channel 1201 is formed between adjacent atomizing protrusions 12. Exemplarily, the side of the disc body 11 close to the flow guiding device 20 is the atomizing surface 1101. The atomizing surface 1101 is arranged with three rings / three sets of atomizing groups from the inside to the outside. The atomizing protrusions 12 of the first atomizing group are strip-shaped protrusions that extend spirally from the inside to the outside. The atomizing protrusions 12 of the second atomizing group are columnar protrusions. The atomizing protrusions 12 of the third atomizing group are atomizing teeth. The liquid is dispersed multiple times after passing through multiple sets of atomizing groups, resulting in a good atomization effect.

[0123] In one embodiment, the flow guiding device 20 is used to deliver liquid to the side of the centrifugal atomizing disk 10 where the atomizing group is provided, so that the liquid can enter a plurality of atomizing channels 1201. Exemplarily, the flow guiding device 20 is a flow guiding shell and a flow guiding tube. A flow guiding cavity 22 is formed inside the flow guiding shell. The flow guiding tube is connected to the flow guiding shell and is provided with a liquid inlet 21. A liquid outlet 23 is provided on the side of the flow guiding shell near the centrifugal atomizing disk 10. The liquid inlet 21 is connected to the liquid outlet 23 through the flow guiding cavity 22. The liquid inlet 21 is used to connect to a liquid supply device (e.g., a liquid storage tank). Under the action of a pump or other force, the liquid is sent from the liquid supply device to the flow guiding cavity 22 and from the liquid outlet 23 to the centrifugal atomizing disk 10, so that the liquid enters a plurality of atomizing channels 1201.

[0124] In one embodiment, as shown in the figure, two centrifugal atomizing sprayers 100 are arranged on the left and right sides of the platform body 200 of the unmanned vehicle. The centrifugal atomizing sprayer 100 on the left side is used to spray pesticide onto the crop plants on the left side of the platform body 200, and the centrifugal atomizing sprayer 100 on the right side is used to spray pesticide onto the crop plants on the right side of the platform body 200. The orientation of the centrifugal atomizing sprayers 100 can be adjusted upward and / or downward, or towards the front and / or rear of the vehicle.

[0125] In one embodiment, as shown in the figure, the centrifugal atomizing spraying device 100 includes a mounting base 80, a motor that is adjustable in angle or fixedly mounted on the mounting base 80, and the mounting base 80 that is adjustable in angle or fixedly mounted on the platform body 200.

[0126] In one embodiment, the air guide shroud 62 is provided with a main air supply duct, the two ends of which are connected to an air inlet and an air outlet, respectively. (Refer to...) Figure 13 In the radial direction of the centrifugal atomizing spraying device 100, the baffle 42 is located between the centrifugal atomizing disc 10 and the main air supply duct. (Refer to...) Figure 13 The centrifugal atomizing spraying device 100 can be radially divided into a central region, a transition region, and an air supply region. The central region, transition region, and air-driven expansion region all extend axially, with the transition region surrounding the outer periphery of the central region and the air-driven expansion region surrounding the outer periphery of the transition region. The centrifugal atomizing disc 10 is located in the central region, several baffles 42 of the outer casing 40 are located in the transition region, and the main air supply duct is located in the air supply region. For example, Figure 16 It indicated Figure 15 Schematic diagram of each region in the middle. Figure 16In this diagram, S1 is the aforementioned central region, S2 is the aforementioned transition region, and S3 to S8 surround the outer perimeter of the transition region. S3 is the area blocked by the first tongue 622, S4 is the area blocked by the second tongue 623, and S5 to S8 are all air supply regions. Regions S5 and S6 are the air outlets of the main air supply duct (S5 and S6 are located on the upper and lower sides of the centrifugal atomizing disk 10), and S7 and S8 are the air outlets of the front-to-back through air duct (S7 and S8 are located on the left and right sides of the centrifugal atomizing disk 10). After the droplets are ejected from the central region S1, they pass through the transition region S2 where the baffle 42 is located, and are effectively blown forward when they reach regions S5 to S8. Of course, some droplets may also be blown forward after leaving the transition region. In other embodiments, the position of the air duct outlets may also be adjusted.

[0127] Understandably, the baffle 42 is positioned in the transition area to reduce droplet velocity and make it easier for the airflow to control the droplets, thus stabilizing the fog field. Droplets sprayed outwards from the centrifugal atomizing disc 10 first pass through the transition area. When the droplets collide with the baffle 42 of the outer cover 40 in the transition area, the baffle 42 reduces the radial centrifugal velocity of the droplets. This makes it easier for the droplets to be controlled by the forward-blowing airflow when they reach the air delivery area, allowing the airflow to propel the droplets forward and making the fog field of the centrifugal atomizing spraying device 100 more stable. It is also understandable that the baffle 42 is positioned in the transition area to facilitate secondary atomization of the droplets. To obtain smaller droplets in the centrifugal atomizing spraying device 100, it is generally considered to increase the rotational speed of the centrifugal atomizing disc 10. However, the inventors discovered that increasing the rotational speed of the centrifugal atomizing disc 10 may cause the droplets to maintain a relatively high radial centrifugal velocity when they reach the air delivery area. Therefore, to obtain a stable fog field, it is necessary to increase the wind speed of the fan 61. However, in this embodiment, the outer cover 40 has a baffle strip 42 surrounding the outer periphery of the centrifugal atomizing disk 10. In this way, the baffle strip 42 can further disperse and atomize the droplets, reducing the droplet size. Smaller droplets can be obtained without increasing the rotation speed of the centrifugal atomizing disk 10 or the wind speed of the fan 61.

[0128] Optionally, refer to Figure 12The air guide shroud 62 includes an air guide housing 621 and a first tongue 622 and a second tongue 623 disposed inside the air guide housing 621. The first tongue 622 and the second tongue 623 are located on opposite sides of the centrifugal atomizing device. The main air supply duct includes a first expansion duct 6201 and a second expansion duct 6202. The first expansion duct 6201 is formed between the inner wall of the air guide housing 621 and the first tongue 622, and the second expansion duct 6202 is formed between the inner wall of the air guide housing 621 and the second tongue 623. Both the first expansion duct 6201 and the second expansion duct 6202 are configured to extend from one end of the air inlet to one end of the air outlet in a direction away from the central axis of the air guide shroud 62, so as to achieve an expansion of approximately 180 degrees. For example, the first tongue 622 and the second tongue 623 are located on the upper and lower sides of the centrifugal atomizing device, and the first expansion air duct 6201 and the second expansion air duct 6202 are the upper expansion air duct and the lower expansion air duct, respectively. When the centrifugal atomizing spraying device 100 performs spraying operations, it can expand the upward and downward spraying amplitude, allowing the centrifugal atomizing spraying device 100 on the unmanned vehicle to cover a larger area in the crop height direction, thereby improving the spraying effect.

[0129] Please see Figure 17-19 In one embodiment, the centrifugal atomizing spraying device includes a centrifugal atomizing device and a fan (61); the centrifugal atomizing device includes a centrifugal atomizing disc (10), a device body, and an outer cover (40) with fan blades; the centrifugal atomizing disc (10), the device body, and the fan (61) are arranged axially; the device body includes a driving device (30), which is connected to the centrifugal atomizing disc (10) and is used to drive the centrifugal atomizing disc (10) to rotate; the outer cover (40) is rotatably mounted on the device body through the rotating mounting part (41), and a plurality of the partition strips (42) surround the outer periphery of the centrifugal atomizing disc (10). In one embodiment, the device body further includes a flow guiding device (20), which is used to deliver liquid to the centrifugal atomizing disc (10). In this embodiment, the fan blades 44 and the baffle strips 42 of the outer casing with fan blades are respectively disposed on opposite sides of the rotating mounting portion 41 in the axial direction. Preferably, the fan blades 44 are located on the side of the rotating mounting portion 41 closer to the fan, so that the airflow blown by the fan can directly blow onto the fan blades 44, and the airflow pushes the fan blades 44, thereby causing the outer casing to rotate relative to the main body of the device. Preferably, the side of the fan blades 44 closest to the fan is an arc-shaped surface, which allows the airflow blown by the fan to make smoother contact with the surface of the fan blades 44. Configurations not mentioned in this embodiment can be referred to in previous embodiments.

[0130] In one embodiment, the end of the fan blade 44 closest to the fan is the air inlet end 471, and the end furthest from the fan is the air outlet end 472. The fan blade 44 extends from the air inlet end 471 to the air outlet end 472, and extends circumferentially along the rotating mounting portion 41. This arrangement allows the airflow to reach the fan blade 44 from the air inlet end 471 and flow circumferentially along the surface of the fan blade 44 towards the rotating mounting portion 41, thereby pushing the fan blade 44 to rotate in the opposite direction. After reaching the surface of the fan blade 44 from the air inlet end 471, the airflow flows along the surface of the fan blade 44 and finally flows out from the air outlet end 472. In this embodiment, the fan blade 44 is in a triangular shape, and the air inlet end 471 and the air outlet end 472 are misaligned along the axial direction of the rotating mounting portion 41, so that the airflow has a circumferential pushing effect on the fan blade 44 during the flow. In one embodiment, a plurality of fan blades 44 are disposed on the side of the rotating mounting portion 41 near the fan and are evenly distributed along the circumference of the rotating mounting portion 41. This allows the airflow to be used to rotate the outer casing more evenly. In another embodiment, the side of the rotating mounting portion 41 near the fan is the windward surface 474. The windward surface 474 extends outward in a direction away from the fan, which means it extends away from the central axis of the rotating mounting portion 41. This arrangement increases the wind-receiving area of ​​the outer casing, allowing the airflow to diffuse outward along the windward surface 474 and guide the airflow toward the fan blades 44.

[0131] In one embodiment, the windward surface 474 is an arc surface, that is, the generatrix 473 of the windward surface 474 is an arc. This arrangement allows the airflow to flow more smoothly on the windward surface 474. In the above embodiment, the fan blade 44 is disposed on the side of the rotating mounting part 41 near the fan, while the baffle strip 42 is disposed on the side of the rotating mounting part 41 away from the fan. The airflow blown by the fan blows onto the fan blade 44 and drives the outer cover to rotate relative to the main body of the device, thereby causing the baffle strip 42 to rotate and preventing mist droplets from accumulating on the baffle strip 42.

[0132] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0133] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0134] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0135] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A fan-bladed outer cover, characterized in that, The outer cover (40) can be applied to a centrifugal atomizing device. The outer cover (40) includes a rotating mounting part (41), a number of baffles (42), and a number of fan blades (44). The rotating mounting part (41) has a first axis, a plurality of partition bars (42) are arranged around the first axis, and a plurality of fan blades (44) are arranged around the first axis; the partition bars (42) and the fan blades (44) are all connected to the rotating mounting part (41).

2. The fan-bladed outer cover according to claim 1, characterized in that, A plurality of the fan blades (44) are located on the side of the plurality of the baffles (42) near the rotating mounting portion (41); And / or, some of the fan blades (44) are located on the side of some of the partition bars (42) away from the rotating mounting portion (41).

3. The fan-bladed outer cover according to claim 1, characterized in that, The outer cover (40) also includes an outer ring (43) that surrounds the outer periphery of the rotating mounting portion (41); The outer ring (43) has two axially opposite sides, namely the front side (4303) and the rear side (4304), and several of the partition strips (42) are connected to the front side (4303); the outer ring (43) is connected to the rotating mounting part (41).

4. The fan-bladed outer cover according to claim 3, characterized in that, The rotating mounting part (41) has a first outer peripheral surface (4101) on the side near the outer ring (43), and the outer ring (43) has a second inner peripheral surface (4301) on the side near the rotating mounting part (41). The first outer peripheral surface (4101) and the second inner peripheral surface (4301) are spaced apart from each other.

5. The fan-bladed outer cover according to claim 4, characterized in that, An annular through hole is formed between the first outer peripheral surface (4101) and the second inner peripheral surface (4301). A plurality of fan blades (44) are inner ring fan blades (45), and the plurality of inner ring fan blades (45) are distributed around the first axis in the annular through hole. The outer ring (43) is connected to the rotating mounting part (41) via at least a portion of the inner ring fan blades (45).

6. The fan-bladed outer cover according to claim 4, characterized in that, The outer cover (40) includes a plurality of inner ring fan blades (45) and a plurality of outer ring fan blades (46) in the fan blades (44); the plurality of inner ring fan blades (45) are located between the outer ring (43) and the rotating mounting part (41), and the plurality of outer ring fan blades (46) surround the outer periphery of the outer ring (43); The inner fan blades (45) have an inner wind-receiving surface (451) and an inner leeward surface on opposite sides. The inner wind-receiving surface (451) is located on the side of the inner fan blades (45) away from the baffle strip (42). The outer fan blades (46) have an outer wind-receiving surface (461) and an outer leeward surface (462) on opposite sides. The outer wind-receiving surface (461) is located on the side of the outer fan blades (46) away from the baffle strip (42). At least a portion of the inner fan blades (45) are configured such that at least a portion of the inner air-receiving surface (451) is connected to the outer air-receiving surface (461).

7. The fan-bladed outer cover according to any one of claims 1 to 6, characterized in that, The rotating mounting part (41) is a mounting ring. The inner side of the mounting ring is provided with an annular protrusion or an annular recess. The mounting ring is used to rotatably fit onto the main body of the centrifugal atomizing device.

8. A centrifugal atomizing spraying device, characterized in that, Includes a centrifugal atomizing device and a fan (61); The centrifugal atomizing device includes a centrifugal atomizing disc (10), a device body, and a fan-bladed outer cover (40) as described in any one of claims 1 to 7; the centrifugal atomizing disc (10), the device body, and the fan (61) are arranged along the axial direction; The main body of the device includes a driving device (30), which is connected to the centrifugal atomizing disk (10) and is used to drive the centrifugal atomizing disk (10) to rotate. The outer cover (40) is rotatably mounted on the main body of the device via the rotating mounting part (41), and a plurality of the partition strips (42) surround the outer periphery of the centrifugal atomizing disc (10).

9. The centrifugal atomizing spraying device according to claim 8, characterized in that, The drive device (30) is configured to drive the centrifugal atomizing disk (10) to rotate in a first direction; A plurality of the fan blades (44) are configured such that when an airflow blown by the fan (61) acts on the fan blades (44), the fan blades (44) can drive the outer cover (40) to rotate in a second direction; Of the first direction and the second direction, one is clockwise and the other is counterclockwise.

10. The centrifugal atomizing spraying device according to claim 8 or 9, characterized in that, It also includes an air guide shroud (62), with an air inlet and an air outlet respectively at both ends of the air guide shroud (62). The end of the air guide shroud (62) with the air inlet is connected to the fan (61). The main body of the device is at least partially located inside the air guide shroud (62).

11. The centrifugal atomizing spraying device according to claim 8, wherein the main body of the device further includes a flow guiding device (20), the flow guiding device (20) being used to deliver liquid to the centrifugal atomizing disc (10).

12. The centrifugal atomizing spraying device according to claim 8, characterized in that, The fan blade (44) is located on the side of the rotating mounting part (41) near the fan (61).

13. The centrifugal atomizing spraying device according to claim 12, characterized in that, The side of the fan blade (44) near the fan (61) is curved.

14. The centrifugal atomizing spraying device according to claim 13, characterized in that, The end of the fan blade (44) closer to the fan (61) is the air receiving end (471), and the end farther away from the fan (61) is the air outlet end (472); the fan blade (44) extends from the air receiving end (471) to the air outlet end (472), and the fan blade (44) extends circumferentially along the rotating mounting part (41).

15. The centrifugal atomizing spraying device according to claim 12, characterized in that, The side of the rotating mounting part (41) near the fan (61) is the windward side (474), which extends outward in a direction away from the fan (61).

16. The centrifugal atomizing spraying device according to claim 15, characterized in that, The windward surface (474) is an arc surface.

17. A mobile platform, characterized in that, It includes a platform body (200) and a centrifugal atomizing spraying device (100) as described in any one of claims 8 to 16, wherein the centrifugal atomizing spraying device (100) is installed on the platform body (200).

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