Centrifugal atomization device, centrifugal atomization spraying equipment and movable platform

Abstract

The invention discloses a centrifugal atomization device, centrifugal atomization spraying equipment and a movable platform, and belongs to the technical field of plant protection equipment. The centrifugal atomization device comprises a device body, a centrifugal atomization disc and an outer cover. The centrifugal atomizing disc is arranged on the front side of the device body, the device body comprises a driving device, and the driving device is used for driving the centrifugal atomizing disc to rotate around the rotating axis L1; the centrifugal atomizing disc is provided with a plurality of atomizing runners arranged around the rotating axis of the centrifugal atomizing disc; the outer cover comprises a cover mounting part and a plurality of barrier strips; the cover mounting part is connected with the device main body, the multiple barrier strips surround the periphery of the centrifugal atomizing disc, each barrier strip comprises a strip main body part and an extension end part located on the front side of the strip main body part, the strip main body part is located on the outer side of the area where the atomizing flow channel is located, and the extension end part extends forwards relative to the area where the atomizing flow channel is located. The atomization effect and the spraying effect are good, and the barrier strips of the outer cover have the protection effect and the re-atomization effect on fog drops.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spraying equipment, in particular to a centrifugal atomization device, a centrifugal atomization spraying equipment and a movable platform. BACKGROUND

[0002] At present, the unmanned aerial vehicle, unmanned vehicle and other plant protection machines can carry atomization spraying equipment to carry out spraying operation, such as spraying pesticide to crops. In the related art, many atomization spraying equipment sprays mist droplets by pressure atomization to carry out spraying operation on the target area, but the atomization effect and spraying effect of the pressure atomization spraying method are poor. SUMMARY

[0003] The purpose of the embodiment of the present application is to provide a centrifugal atomization device, a centrifugal atomization spraying equipment and a movable platform, which can improve the atomization and spraying effect.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] A centrifugal atomization device comprises:

[0006] A device main body comprising a driving device;

[0007] A centrifugal atomization disc for rotating and throwing out liquid outward, one surface of which is an atomization surface, the atomization surface has a plurality of atomization flow channels arranged around the rotation axis, and the driving device is used to drive the centrifugal atomization disc to rotate around the rotation axis;

[0008] An outer cover arranged around the centrifugal atomization disc and at least partially located on the outer side of the atomization flow channel along the radial direction of the centrifugal atomization disc, so that the liquid thrown out from the atomization flow channel is scattered after hitting the outer cover.

[0009] Optionally, the outer cover comprises a cover mounting portion and a plurality of barrier strips; the plurality of barrier strips are arranged around the centrifugal atomization disc, and each barrier strip comprises a strip main body portion and an extended end portion located on the front side of the strip main body portion, the strip main body portion is located on the outer side of the atomization flow channel area, and the extended end portion extends forward relative to the atomization flow channel area and outward of the centrifugal atomization disc.

[0010] Optionally, the cover mounting portion is connected with the device main body.

[0011] Optionally, the outer cover is at least partially located in the direction away from the rotation axis along the radial direction of the centrifugal atomization disc.

[0012] Optionally, the centrifugal atomization disc and the outer cover are arranged in the axial direction and located on the front side of the device main body.

[0013] Optionally, the centrifugal atomization disc comprises a disc body and at least one atomization group, each atomization group comprises a plurality of atomization protrusions arranged around the rotation axis; one side of the disc body in the axial direction has an atomization surface, the atomization protrusions are arranged on the atomization surface, and the atomization flow channels are formed between adjacent atomization protrusions.

[0014] Optionally, the atomization surface is located on the side of the disc body close to the device body, and the outer extension end protrudes forward relative to the atomization surface; or the atomization surface is located on the side of the disc body away from the device body, the atomization protrusion located on the outermost circle of the disc body is an outer circle protrusion, and the outer extension end protrudes forward relative to the outer circle protrusion.

[0015] Optionally, the distance by which the barrier strip protrudes forward relative to the atomization flow channel is a protrusion distance d1; the atomization protrusion located on the outermost circle of the disc body is an outer circle protrusion, the height of the outer circle protrusion is d2, d1

[0016] Optionally, the outer circumferential surface of the centrifugal atomization disc in the radial direction is a disc outer circumferential surface, the barrier strip is arranged in the radial direction away from the centrifugal atomization disc, the radial distance between the barrier strip and the disc outer circumferential surface is d3, and 0.1≤d1 / d3≤0.3.

[0017] Optionally, the distance by which the barrier strip protrudes forward relative to the atomization flow channel is a protrusion distance d1, and 0.5mm≤d1≤1cm.

[0018] Optionally, the barrier strip is an atomization tooth, and the side of the barrier strip close to the centrifugal atomization disc has a sharp end for breaking up liquid droplets.

[0019] Optionally, the device body further comprises a flow guide device for conveying liquid to a plurality of atomization flow channels of the centrifugal atomization disc; the flow guide device and the centrifugal atomization disc are arranged in the axial direction; the cover mounting portion is a mounting ring, the mounting ring is sleeved on the outside of the flow guide device, and the mounting ring is rotatably connected or fixedly connected with the flow guide device; the outer cover further comprises an outer ring, a plurality of barrier strips are arranged on one side of the outer ring in the axial direction, the mounting ring is located on the inner side of the outer ring, and the outer ring is connected with the mounting ring.

[0020] A centrifugal atomization and spraying device comprises the centrifugal atomization device as described in the above scheme, further comprises a fan and a wind guide cover; the fan is arranged on the side of the device body away from the centrifugal atomization disc, the wind guide cover is connected with the fan, so that the wind blown by the fan enters the wind guide cover; the centrifugal atomization disc is located on the side of the wind guide cover away from the fan, or the centrifugal atomization disc is located inside the wind guide cover.

[0021] 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.

[0022] The beneficial effects of this invention are as follows: This centrifugal atomizing device uses centrifugal atomization; at least a portion of the outer casing surrounds the centrifugal atomizing disc, providing protection for the disc; furthermore, at least a portion of the outer casing surrounding the disc is located radially outside the centrifugal atomization channel, and the outer casing also serves to re-atomize the droplets ejected from the centrifugal atomizing disc, resulting in excellent atomization performance. This centrifugal atomizing spraying equipment and its movable platform provide good spraying results in scenarios such as spraying pesticides onto crops. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is an assembly diagram of the flow guiding device, outer cover, and centrifugal atomizing disc in the centrifugal atomizing device according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0026] Figure 3 This is a cross-sectional view of the flow guiding device, outer cover, and centrifugal atomizing disc in the centrifugal atomizing device according to an embodiment of the present invention, in an assembled state.

[0027] Figure 4 for Figure 3 Enlarged view of part B in the image;

[0028] Figure 5 This is one of the structural schematic diagrams of the centrifugal atomizing disk of the centrifugal atomizing device described in the embodiments of the present invention;

[0029] Figure 6 This is a second schematic diagram of the structure of the centrifugal atomizing disc of the centrifugal atomizing device described in an embodiment of the present invention;

[0030] Figure 7 This is an exploded view of the flow guiding device, outer cover, and centrifugal atomizing disc in the centrifugal atomizing device according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the centrifugal atomizing device according to an embodiment of the present invention;

[0032] Figure 9 for Figure 8 Enlarged view of section C in the image;

[0033] Figure 10 This is a cross-sectional view of the centrifugal atomizing device described in an embodiment of the present invention;

[0034] Figure 11 Scene diagram of the spraying work of the movable platform according to an embodiment of the present application (fog droplet is omitted in the diagram).

[0035] Figure 12 Structure diagram of the centrifugal atomization spraying equipment according to an embodiment of the present application;

[0036] Figure 13 Structure diagram of the centrifugal atomization spraying equipment according to an embodiment of the present application (the bold dashed line part in the diagram is used to show the flow direction of the fog droplet);

[0037] Figure 14 Front view of the centrifugal atomization spraying equipment according to an embodiment of the present application;

[0038] Figure 15 Distribution diagram of the centrifugal atomization spraying equipment according to an embodiment of the present application from the front view;

[0039] In the diagram: 10, centrifugal atomization disc; 11, disc body; 1101, atomization surface; 1102, disc outer peripheral surface; 12, atomization protrusion; 121, outer circle protrusion; 1201, atomization flow channel; 20, flow guiding device; 21, liquid inlet; 22, flow guiding cavity; 23, liquid outlet; 30, driving device; 31, fixing seat; 32, driving shaft; 40, outer cover; 41, cover mounting part; 42, barrier strip; 4201, passing channel; 4202, tip; 421, strip main part; 422, outer extension end part; 43, outer ring; 61, fan; 62, air guiding cover; 6201, first expansion air channel; 6202, second expansion air channel; 621, air guiding outer shell; 622, first tongue; 623, second tongue; 71, connecting track; 80, mounting seat; 100, centrifugal atomization spraying equipment; 200, platform body. DETAILED DESCRIPTION

[0040] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0041] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "fixed" should be understood broadly, for example, can be fixed connection, can also be detachable connection or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] Spraying equipment is widely used, for example: in the field of agricultural and forestry plant protection, liquid such as pesticide and growth solution is sprayed to the target area through the spraying device; in the field of killing, bactericidal liquid and disinfectant liquid are sprayed to the target area through the spraying device; and the like. Many spraying equipment applied in the field of agricultural and forestry plant protection and the field of killing adopts pressure atomization technology, uses compressed air or high-pressure nitrogen as power, and sprays liquid (such as pesticide) out of the nozzle to split the liquid into fine mist droplets. However, these spraying equipment using pressure atomization mode has poor applicability in some scenes, and has some problems, for example: first, although the pressure atomization technology can split the liquid into mist droplets, the size and distribution of the mist droplets are often not uniform enough, and there may be large mist droplets and small mist droplets, the larger mist droplets may not be effectively attached to the target surface, and the smaller mist droplets may be blown away by the wind, causing waste and pollution. Second, the spraying efficiency is low, and for large-area spraying demand, it is generally necessary to extend the operation time of a single nozzle to spray more areas, or to increase the number of nozzles to cover a larger area.

[0044] Based on this, the present application provides a centrifugal atomization device suitable for being applied in a centrifugal atomization spraying equipment including a fan. The centrifugal atomization device generates centrifugal force through a high-speed rotating centrifugal atomization disc, uses the centrifugal force to throw out liquid, and forms mist droplets after the liquid is dispersed and atomized into fine liquid particles in the process of being thrown out. Compared with the pressure atomization mode, the spraying is performed by using the centrifugal atomization mode, the atomization effect is better, and it is suitable for being applied in the field of agricultural and forestry plant protection pesticide spraying.

[0045] The centrifugal atomization device of the application is also provided with an outer cover which at least partially surrounds the radial outer side of the area where the centrifugal atomization disc atomization flow channel is located, so as to protect the high-speed rotating centrifugal atomization disc. Moreover, the part of the outer cover surrounding the outer periphery of the centrifugal atomization disc also plays a role of secondary atomization of the mist droplets thrown out by the centrifugal atomization disc, which is beneficial to improving the atomization effect.

[0046] The centrifugal atomization and spraying equipment of the application sprays the atomized droplets radially through the centrifugal atomization device at the front end, and the fan blows air at the rear part of the centrifugal atomization device, so as to blow the atomized and sprayed droplets to the target area. The centrifugal atomization and spraying equipment can expand the coverage range of the mist field, and has high spraying operation efficiency and good effect. The centrifugal atomization and spraying equipment can be installed on a movable plant protection equipment such as an unmanned vehicle, an unmanned plant protection aircraft, etc., or can be fixed in the environment for use, and of course, the handheld use mode is not excluded.

[0047] The application also provides a movable platform which can be but is not limited to an unmanned vehicle or a manned vehicle. The movable platform can drive and move in a farmland, an orchard, a vegetable garden or the like, and spray the pesticide to the crop plants from the side, so as to have good spraying effect and high spraying efficiency.

[0048] It should be noted that in the drawings of the application, the y direction and the x direction are marked in the drawings for the convenience of describing the relative positions between the centrifugal atomization device and the various components inside the centrifugal atomization and spraying equipment. The y axis direction is consistent with the central axis direction of the centrifugal atomization and spraying device and the central axis direction of the centrifugal atomization and spraying equipment, and the x direction is one of the radial directions. Figures 1 to 10 Fig. 1 shows the partial structure or the whole structure of the centrifugal atomization device, Figure 12 、 Figure 13 Fig. 2 shows the structure of the centrifugal atomization and spraying equipment 100, Figure 11 Fig. 3 shows the movable platform carrying the centrifugal atomization and spraying equipment 100.

[0049] Please refer to Figure 1 、 Figure 3 、 Figure 7 、 Figure 8 、 Figure 10 The centrifugal atomization device includes a device main body, a centrifugal atomization disc 10 and an outer cover 40. The axial direction of the centrifugal atomization device is the front-rear direction (the y direction in the drawings), the device main body and the centrifugal atomization disc 10 are arranged along the axial direction, and the centrifugal atomization disc 10 is located at the front side of the device main body.

[0050] The centrifugal atomization disc 10 has an axis of rotation, and is used to rotate to throw liquid outward. One surface of the centrifugal atomization disc 10 is an atomization surface 1101, and the atomization surface 1101 is provided with a plurality of atomization flow channels 1201 distributed around the axis of rotation. The device body comprises a driving device 30, and the driving device 30 is used to drive the centrifugal atomization disc 10 to rotate around the axis of rotation.

[0051] The cover 40 is arranged around the centrifugal atomization disc 10, and at least part of the cover 40 is located radially outward of the atomization flow channels 1201, so that the liquid thrown outward from the atomization flow channels 1201 and centrifugally away from the axis of rotation is broken up after hitting the cover 40. Exemplarily, the cover 40 comprises a cover body, and the cover body is arranged around the centrifugal atomization disc 10 and radially outward of the atomization flow channels 1201, so that the liquid thrown outward from the atomization flow channels 1201 and centrifugally away from the axis of rotation is broken up after hitting the cover 40.

[0052] The centrifugal atomization device of the present application adopts a centrifugal atomization mode, and has good atomization effect. Moreover, the cover 40 is arranged to cooperate with the centrifugal atomization disc 10, and in the case that the cover 40 is arranged at least partially around the centrifugal atomization disc 10 and the part is located radially outward of the atomization flow channels 1201, the liquid thrown outward from the atomization flow channels 1201 and centrifugally away from the axis of rotation can directly hit the cover body of the cover 40 and be broken up. The centrifugal atomization device of the present application is suitable for being carried on a ground equipment such as a plant protection vehicle, and in the case that the centrifugal atomization device is arranged such that the axis of rotation of the centrifugal atomization disc 10 is substantially parallel to the ground (the included angle with the ground is less than 40 degrees) and the rotation plane of the centrifugal atomization disc 10 is approximately in the vertical direction, in the geodetic coordinate system, the mist droplets thrown outward by the centrifugal atomization disc 10 are sprayed substantially upward, downward, leftward and rightward, and based on the cover 40 of the present application being arranged at least partially around the centrifugal atomization disc 10 radially outward, the liquid thrown upward will hit the cover body.

[0053] Optionally, the device body comprises a flow guide device 20. The flow guide device 20 is used to deliver liquid to the centrifugal atomization disc 10. The driving device 30 comprises a fixed seat 31 and a driving shaft 32, the fixed seat 31 of the driving device 30 is connected with the flow guide device 20, and the driving shaft 32 of the driving device 30 is connected with the centrifugal atomization disc 10, so that the centrifugal atomization disc 10 can rotate around the axis of rotation under the driving of the driving device 30.

[0054] Optionally, the cover body comprises a plurality of barrier strips 42 arranged around the outer periphery of the centrifugal atomization disc 10 and spaced apart in the circumferential direction, and the cover 40 is mounted on the device body through a cover mounting portion 41, and the barrier strips 42 are connected with the cover mounting portion 41. Referring to Figure 1 、 Figure 3 、 Figure 7 、 Figure 8 A plurality of barrier strips 42 are arranged around the outer periphery of the centrifugal atomization disc 10, and referring to Figure 2 ,Figure 6 、 Figure 9 , the circumferentially adjacent baffles 42 are spaced apart from each other to form a through passage 4201 between the two baffles 42, through which the mist droplets can pass.

[0055] In the centrifugal atomization device of the present application, the outer cover 40 at least partially surrounds the centrifugal atomization disc 10 to protect the centrifugal atomization disc 10. When the centrifugal atomization device is used to spray liquid (such as pesticide) to the crops, the branches, leaves and other foreign matters can be prevented from reaching the centrifugal atomization disc 10 to cause damage to the centrifugal atomization disc 10. The outer cover 40 can also prevent the crops from being damaged by the centrifugal atomization disc 10, and prevent the operator from being injured by the broken centrifugal atomization disc 10.

[0056] When the centrifugal atomization device is in operation, the liquid is delivered to the center of the centrifugal atomization disc 10 by the flow guide device 20, and the centrifugal atomization disc 10 is rotated around the central rotation axis by the driving device 30. The liquid in the central region of the centrifugal atomization disc 10 moves outward under the centrifugal force, and the liquid is dispersed and atomized when passing through the region where the atomization flow channel 1201 is located. Finally, the fine liquid droplets (i.e. mist droplets) are sprayed and thrown out in the radial direction to the periphery of the centrifugal atomization disc 10. During the movement of the mist droplets thrown out of the centrifugal atomization disc 10 under the inertia, the mist droplets collide with the outer cover 40 arranged at the outer periphery of the centrifugal atomization disc 10, and the mist droplets are scattered again by the outer cover 40 to realize the secondary atomization of the mist droplets. For example, when the outer cover 40 is provided with baffles 42 surrounding the outer periphery of the centrifugal atomization disc 10, the mist droplets collide with the baffles 42 to realize the secondary atomization of the mist droplets. The mist droplets atomized again by the baffles 42 of the outer cover 40 can continue to move outward through the through passage 4201 between the two baffles 42 to realize the outward spraying of the mist droplets by the centrifugal atomization device.

[0057] Optionally, the outer cover 40 is at least partially located in the direction in which the centrifugal atomization flow channel 1201 of the centrifugal atomization disc 10 is radially away from the rotation axis. The end of the centrifugal atomization flow channel 1201 on the centrifugal atomization disc 10 away from the rotation axis is the flow channel tail end. When the flow channel tail end is located at the outer edge of the atomization surface 1101, the outer cover 40 is at least partially located on the radial outer side of the centrifugal atomization disc 10. When the flow channel tail end is a certain distance away from the outer edge of the atomization surface 1101, the outer cover 40 is at least partially located on the outer side of the flow channel tail end and can be located inside the outer edge of the atomization surface 1101.

[0058] Optionally, please continue to refer to Figure 2 、 Figure 4 , the baffles 42 include a baffle body part 421 and an extended end part 422 connected to the front side of the baffle body part 421. Figure 2 The dashed lines in the position of the baffles 42 in the figure are not solid structures, but are used to divide the baffle body part 421 and the extended end part 422 of the baffles 42.

[0059] Optionally, with reference to Figure 2 , Figure 4 , Figure 9 The strip body part 421 is located outside the area where the atomization flow channel 1201 is located, and the extended end part 422 protrudes forward relative to the area where the atomization flow channel 1201 is located. Figure 6 In the figure, the dashed box part is used to show the atomization space, and the atomization flow channels 1201 are located in the atomization space.

[0060] The strip body part 421 is located outside the area where the atomization flow channel 1201 is located, so that at least part of the first type of mist droplets (not shown in the figure) that move outward along the first trajectory (not shown in the figure) after leaving the centrifugal atomization disc 10 can collide with the strip body part 421. The first type of mist droplets are scattered by the strip body part 421 and then continue to move outward after being atomized again, thereby realizing the atomization of the mist droplets again and obtaining finer mist droplet particles. The first trajectory is a trajectory that moves radially from inside to outside, and the radial direction refers to the direction perpendicular to the rotation axis.

[0061] The extended end part 422 protrudes forward relative to the area where the atomization flow channel 1201 is located, so that at least part of the second type of mist droplets (not shown in the figure) that move outward along the first trajectory (not shown in the figure) after leaving the centrifugal atomization disc 10 and have a larger particle size can collide with the strip body part 421 and the extended end part 422. The second type of mist droplets are scattered by the strip body part 421 and the extended end part 422 and then continue to move outward, thereby realizing the atomization of the mist droplets again and obtaining finer mist droplet particles.

[0062] The extended end part 422 protrudes forward relative to the area where the atomization flow channel 1201 is located, so that part of the third type of mist droplets (not shown in the figure) that move outward along the second trajectory (not shown in the figure) after leaving the centrifugal atomization disc 10 can collide with the extended end part 422. The third type of mist droplets are scattered by the extended end part 422 and then continue to move outward, thereby realizing the atomization of the mist droplets again and obtaining finer mist droplet particles.

[0063] It can be understood that in different cases, when the centrifugal atomization device is working, the mist droplets spun out of the centrifugal atomization disc 10 are one or more of the first type of mist droplets, the second type of mist droplets, and the third type of mist droplets.

[0064] The at least one ring of barrier strips 42 around the outer periphery of the centrifugal atomization disc 10 in the outer cover 40 of the present application not only plays a protective role, but also plays a role in atomizing the mist droplets again to make the particle size of the mist droplets smaller and more uniform, thereby achieving better atomization effect. Moreover, the strip body part 421 of the barrier strip 42 cooperates with the extended end part 422 to ensure the atomization effect of the mist droplets again.

[0065] For the convenience of clear understanding the position relationship between the barrier strip 42 and the centrifugal atomization disc 10, the area where the atomization flow channel 1201 is located can also be understood as follows: a virtual first plane and a second plane are defined, the first plane and the second plane are spaced apart along the axial direction of the centrifugal atomization disc 10, and the first plane and the second plane are both perpendicular to the rotation axis of the centrifugal atomization disc 10. The area between the first plane and the second plane is the area where the atomization flow channel 1201 is located, and the atomization flow channels 1201 provided by the centrifugal atomization disc 10 are arranged between the first plane and the second plane. Exemplarily, the area where the atomization flow channel 1201 is located is a cylindrical virtual space.

[0066] The centrifugal atomization device generates centrifugal force through the high-speed rotating centrifugal atomization disc 10, uses the centrifugal force to throw out the liquid, and forms fine liquid particles after the liquid is dispersed and atomized during the throwing-out process, and then sprays the atomized liquid droplets out of the centrifugal atomization disc 10. Compared with the pressure atomization method, the centrifugal atomization method has better atomization effect and is suitable for application in the field of agricultural and forestry plant protection pesticide spraying. The centrifugal atomization device has the following advantages: first, the liquid can be dispersed to form smaller liquid droplets, and the droplet size can be controlled to be relatively uniform, avoiding the situation that some liquid droplets have a large particle size and some liquid droplets have a small particle size; second, a wider spraying coverage range can be formed, so that the pesticide solution can more uniformly cover the target area, and the spraying effect is good; third, the controllability is strong, the size of the droplets and the spraying amount can be controlled by adjusting the rotation speed, the liquid inlet amount and other parameters, different operation requirements can be met, and accurate atomization control can be realized; fourth, compared with the pressure nozzle, the flow channel inside the centrifugal atomization disc 10 is not easy to be blocked.

[0067] The cover 40 plays a role in protecting the centrifugal atomization disc 10. Exemplarily, if corn leaves or other leaves or foreign matters accidentally stretch to the area near the centrifugal atomization disc 10, they will be blocked by the barrier strips 42 surrounding the centrifugal atomization disc 10, and the barrier strips 42 of the cover 40 play a role in blocking leaves and foreign matters from approaching the centrifugal atomization disc 10. When the centrifugal atomization disc 10 is in a rotating working state, the barrier strips 42 can prevent leaves and other foreign matters from being sucked into the centrifugal atomization disc 10, so as to avoid damage to the centrifugal atomization disc 10 or the crop. When the centrifugal atomization disc 10 is in a non-rotating standby state, the barrier strips 42 can block leaves and other foreign matters, so as to avoid scratching or damaging the centrifugal atomization disc 10. It can be understood that the adjacent barrier strips 42 are spaced apart from each other, and a through channel 4201 is formed between the adjacent barrier strips 42. The atomized liquid droplets thrown out by the centrifugal atomization disc 10 can pass through the through channel 4201. The arrangement of the cover 40 does not affect the function of the centrifugal atomization disc 10 in throwing out atomized liquid droplets.

[0068] The centrifugal atomization device of the present application, the centrifugal atomization disc 10 is externally surrounded by the several blocking strips 42 of the outer cover 40, which can protect the centrifugal atomization disc 10 from being damaged by foreign matters, protect the crops from being damaged by the centrifugal atomization disc 10, and protect the personnel from being hurt by the broken centrifugal atomization disc 10, and can solve the problems caused by the direct exposure of the centrifugal atomization disc 10.

[0069] Optionally, the centrifugal atomization disc 10 and the outer cover 40 are installed and arranged on the front side of the device body in the axial direction. The installation is convenient, and the outer cover 40 is close to the centrifugal atomization disc 10, which is convenient for the re-atomization of the centrifugal atomization disc 10, and reduces the volume and weight of the outer cover 40.

[0070] Please continue to refer to Figures 1 to 6 In an embodiment, the centrifugal atomization disc 10 comprises a disc body 11 and at least one set of atomization groups, each set of atomization groups comprises several atomization protrusions 12, the atomization protrusions 12 are arranged on the atomization surface 1101, the atomization protrusions 12 are arranged around the rotation axis, the adjacent atomization protrusions 12 are spaced from each other, and the atomization flow channel 1201 is formed between the adjacent atomization protrusions 12. Exemplarily, the side of the disc body 11 close to the flow guide device 20 is the atomization surface 1101, the atomization surface 1101 is provided with three sets of atomization groups from inside to outside, the atomization protrusions 12 of the first set of atomization groups are bent wire protrusions extending from inside to outside, the atomization protrusions 12 of the second set of atomization groups are columnar protrusions, and the atomization protrusions 12 of the third set of atomization groups are atomization teeth of the inner side sharp end 4202. The liquid is dispersed by the multiple sets of atomization groups, and the atomization effect is good.

[0071] In an embodiment, referring to Figure 1 、 Figure 3 、 Figure 7 、 Figure 10, the centrifugal atomization protrusions 12 in the centrifugal atomization disc 10 are located on the side of the disc body 11 close to the device body. Exemplarily, the fixed seat 31 of the driving device 30, the flow guide device 20 and the centrifugal atomization disc 10 are arranged in the axial direction, the atomization surface 1101 of the disc body 11 is located on the side of the disc body 11 close to the flow guide device 20, and the centrifugal atomization protrusions 12 are located on the side of the disc body 11 close to the flow guide device 20. At this time, the baffle strip 42 is arranged such that a part of the front end of the baffle strip 42 protrudes forward by a certain distance relative to the atomization surface 1101, and the part of the baffle strip 42 protruding forward relative to the atomization surface 1101 is the extended end portion 422. In this way, the mist droplets thrown from the edge of the atomization surface 1101 can hit the baffle strip 42, forming the effect of re-atomization. It should be noted that the disc body 11 has a certain thickness, and the baffle strip 42 can protrude forward relative to the side of the disc body 11 away from the device body, or the length of the baffle strip 42 can also be less than the side of the disc body 11 away from the device body. In the embodiment, the side of the centrifugal atomization disc close to the flow guide device 20 is open, and the liquid flowing out of the liquid outlet 23 of the flow guide device 20 can directly enter the central area of the centrifugal atomization disc 10, and the flow is convenient. Moreover, the atomization surface 1101 also has the effect of receiving liquid, ensuring that the liquid is thrown from the center of the centrifugal atomization disc 10 to the periphery, and the atomization effect is good.

[0072] In another embodiment, referring to Figure 10 , the centrifugal atomization protrusions 12 in the centrifugal atomization disc 10 are located on the side of the disc body 11 away from the device body. Exemplarily, the fixed seat 31 of the driving device 30, the flow guide device 20 and the centrifugal atomization disc 10 are arranged in the axial direction, the atomization surface 1101 of the disc body 11 is located on the side of the disc body 11 away from the flow guide device 20, and the centrifugal atomization protrusions 12 are located on the side of the disc body 11 away from the flow guide device 20. The centrifugal atomization protrusions 12 located on the outermost circle of the disc body 11 are the outer circle protrusions 121. At this time, the baffle strip 42 is arranged such that the length of the front end of the baffle strip 42 is longer than the outer circle protrusions 121, that is, the extended end portion 422 of the baffle strip 42 protrudes forward relative to the outer circle protrusions 121.

[0073] For the sake of clear understanding the position relationship between the barrier strip 42 and the centrifugal atomization disc 10 in different configurations, a virtual first plane and a second plane are taken as reference, the first plane is tangent to the outer edge of the atomization face 1101, the atomization protrusion 12 at the outermost circle of the disc body 11 is the outer circle protrusion 121, the second plane is tangent to the end of the outer circle protrusion 121 away from the atomization face 1101, the axial space between the first plane and the second plane is the atomization space, the extended end portion 422 protrudes forward relative to the atomization space. In the case that the atomization protrusions 12 are located at the side of the disc body 11 close to the device main body in the centrifugal atomization disc 10, the first plane is away from the flow guide device 20 relative to the second plane, the extended end portion 422 protrudes forward relative to the first plane. In the case that the atomization protrusions 12 are located at the side of the disc body 11 away from the device main body in the centrifugal atomization disc 10, the second plane is away from the flow guide device 20 relative to the first plane, the extended end portion 422 protrudes forward relative to the second plane.

[0074] In an embodiment, referring to Figure 1 、 Figure 4 , the distance that the barrier strip 42 protrudes forward relative to the atomization flow channel 1201 is the protruding distance d1, in other words, the axial dimension of the extended end portion 422 is the protruding distance d1 of the barrier strip 42. The atomization protrusion 12 at the outermost circle of the disc body 11 is the outer circle protrusion 121, the height of the outer circle protrusion 121 is d2, which is the axial dimension between the two ends of the outer circle protrusion 121 in the axial direction. d1 < d2. 0.05 ≤ d1 / d2 ≤ 0.4, that is, the length d1 of the extended end portion 422 of the barrier strip 42 is less than 40% of the height d2 of the flow channel. Exemplarily, d1 is 2 mm and d2 is 6.7 mm. Exemplarily, d1 is 5 mm and d2 is 2 cm. It can be understood that the atomization protrusions 12 are arranged on the atomization face 1101, and the atomization flow channels 1201 can be defined by the side surfaces of the adjacent atomization protrusions 12 and the atomization face 1101, the height of the atomization flow channel 1201 determines the height of the atomization flow channel 1201, the mist droplets are sprayed out of the atomization flow channel 1201, and by controlling the ratio of the protruding distance d1 of the barrier strip 42 to the height d2 of the atomization flow channel 1201, the reasonable length of the protruding of the barrier strip 42 can be controlled. It can be understood that the re-atomization effect of the mist droplets by the barrier strip 42 is limited when the protruding distance d1 of the barrier strip 42 is too small, and it is easy to form liquid bead chains on the barrier strip 42 and to form large droplets when the protruding distance d2 of the barrier strip 42 is too large.

[0075] Optionally, d1 / d2 ≤ 0.3, the length d1 of the extended end portion 422 of the barrier strip 42 is less than or equal to 30% of the height d2 of the flow channel. Optionally, 0.15 ≤ d1 / d2, the length d1 of the extended end portion 422 of the barrier strip 42 is greater than or equal to 15% of the height d2 of the flow channel.

[0076] Optionally, referring toFigure 3 、 Figure 4 、 Figure 9 , the radial distance between the baffle 42 and the centrifugal atomization disc 10 is controlled: the outer circumferential surface of the centrifugal atomization disc 10 is disc outer circumferential surface 1102, and the radial distance between the baffle 42 and the disc outer circumferential surface 1102 is d3; 0.1≤d1 / d3≤0.3. By controlling the ratio of d1 to d2 and the ratio of d1 to d3, the extension distance of the baffle 42 is associated with the height of the atomization flow channel 1201, and the radial distance between the baffle 42 and the centrifugal atomization disc 10 is associated with the extension distance of the baffle 42. After the mist droplets are sprayed from the atomization flow channel 1201, they can be well impacted on the baffle 42 to achieve good secondary atomization effect, and the extension end portion 422 of the baffle 42 is prevented from being too long so that the liquid droplets can continue to fly away after being impacted on the baffle 42, and the baffle 42 is prevented from accumulating large liquid droplets.

[0077] Optionally, 0.7≤d2 / d3≤1, and the length of the extension end portion 422 of the baffle 42 extending forward is determined according to the height d2 of the atomization flow channel 1201.

[0078] A fan 61 is arranged at the rear of the centrifugal atomization device, and the fan 61 blows air forward to spray mist droplets in a substantially radial direction by the centrifugal atomization disc 10. In the case that the air field blows the mist droplets forward, the baffle 42 is controlled to extend a certain distance relative to the atomization flow channel 1201: on the one hand, the baffle 42 can reduce the centrifugal flying speed of the mist droplets to make the mist droplets more easily controlled by the air field, thereby making the mist field more stable; on the second hand, the baffle 42 can perform secondary atomization on the mist droplets, so that the mist droplets have a smaller particle size without increasing the rotation speed of the centrifugal atomization disc 10, the mist droplets are more easily sprayed into the crops, and the spraying effect of the liquid medicine is better; on the third hand, the distance d1 by which the baffle 42 extends forward is not too long, thereby avoiding or improving the accumulation of large liquid droplets on the baffle 42, avoiding the large liquid droplets on the baffle 42 from being sucked back, and improving the user experience.

[0079] In an embodiment, d1 / d2=0.3, d1 / d3=0.2073, and d2 / d3=0.8361.

[0080] In an embodiment, the barrier strip 42 protrudes forward relative to the atomization flow channel 1201 by a protruding distance d1, and the first threshold range is 0.5 mm to 1 cm. That is, 0.5 mm≤d1≤1 cm. Alternatively, the first threshold range is 1 mm to 3 mm. Alternatively, d1 is 2 mm.

[0081] In an embodiment, the barrier strip 42 is an atomization tooth, and the inner side of the barrier strip 42 has a pointed end 4202. The inner side of the barrier strip 42 refers to the side of the barrier strip 42 close to the centrifugal atomization disc 10, i.e., the side of the barrier strip 42 close to the central axis of the cover 40. The pointed end 4202 is used to break up droplets. When the droplets thrown by the centrifugal atomization disc 10 hit the pointed end 4202 of the barrier strip 42, the droplets are broken up again by the pointed end 4202 of the barrier strip 42, achieving the effect of re-atomization of the droplets. It should be noted that, in the case of rotatable or non-rotatable installation of the cover 40, when the droplets thrown outward hit the pointed end 4202 of the barrier strip 42, the effect of re-atomization of the droplets is achieved.

[0082] Alternatively, the barrier strip 42 has a first side and a second side, and the first side and the second side are connected at an angle to form the pointed end 4202. After the droplets hit the pointed end 4202, they are guided to the left and right sides of the barrier strip 42 under the guidance of the first side and the second side, and continue to fly outward through the passage 4201 on the left and right sides of the barrier strip 42.

[0083] In an embodiment, referring to Figure 10 , the driving device 30 includes a fixed seat 31 and a driving shaft 32. The fixed seat 31 of the driving device 30 is connected to and fixed relative to the flow guide device 20, and the driving shaft 32 is connected to the centrifugal atomization disc 10. Alternatively, the driving device 30 is a motor, which includes a motor seat and a motor shaft. The motor seat, the flow guide device 20, and the centrifugal atomization disc 10 are arranged along an axial direction. The motor shaft penetrates or passes through the flow guide device 20, and the motor shaft is connected to the centrifugal atomization disc 10.

[0084] In an embodiment, referring to Figure 1 、 Figure 3 、 Figure 7 、 Figure 10The outer cover 40 comprises a mounting ring arranged around the rotation axis of the outer cover 40, and the mounting ring is sleeved on the outside of the flow guide device 20 to connect the outer cover 40 with the device body. The outer cover 40 is mounted by sleeving: first, the outer cover 40 does not occupy the space between the flow guide device 20 and the centrifugal atomization disc 10, and does not affect the cooperation between the flow guide device 20 and the centrifugal atomization disc 10; second, the contact area between the outer cover 40 and the flow guide device 20 is large, the connection is more stable, the protection effect of the outer cover 40 on the centrifugal atomization disc 10 is good, and the outer cover 40 is not easy to shake. Optionally, the outer cover 40 further comprises an outer ring 43, and the plurality of blocking strips 42 are arranged on one side of the outer ring 43 in the axial direction, and the mounting ring is located on the inner side of the outer ring 43. The blocking strips 42 are connected with the mounting ring through the outer ring 43. Optionally, the mounting ring is rotatably connected with the flow guide device 20.

[0085] In other embodiments, the part of the outer cover 40 for connecting with the flow guide device 20 can also be arranged on one side of the flow guide device 20 in the axial direction. In other embodiments, the mounting ring is sleeved on the outside of the flow guide device 20, but the mounting ring is fixedly connected with the flow guide device 20.

[0086] In an embodiment, in order to obtain a better spraying effect, the centrifugal atomization device is configured such that, when the centrifugal atomization device is in a working state of atomization spraying, the rotation axis of the centrifugal atomization disc 10 is parallel to the horizontal plane or the included angle with the horizontal plane is less than 30 degrees. Figure 11 As shown in the figure, when the centrifugal atomization device is in the working state, at this time, the back of the centrifugal atomization disc 10 is substantially left or right of the left or right side, and the fan 61 can spray the liquid medicine to the plants on the left or right side of the movable platform 200. In the figure, L1 indicates the rotation axis of the centrifugal atomization disc 10, and L2 indicates the horizontal plane. The rotation axis L1 of the centrifugal atomization disc 10 is substantially parallel to the horizontal plane L2, that is, the axial direction of the centrifugal atomization device is arranged in an approximately horizontal direction, and the rotation plane of the centrifugal atomization disc 10 is arranged in an approximately vertical plane perpendicular to the horizontal plane.

[0087] The inventor found that, in the case of arranging the outer cover 40 in the centrifugal atomization device, when the centrifugal atomization device is working, the centrifugal atomization disc 10 rotates to rotate and throw out the atomized liquid droplets, and part of the liquid droplets may be deposited on the blocking strips 42. Among them, the deposited liquid droplets are the liquid droplets that are not sprayed out and are retained nearby.

[0088] If the position of the outer cover 40 is fixed during the atomization work, for the case that the centrifugal atomization device is carried on the unmanned aerial vehicle, the centrifugal atomization device is generally above the crops, and when the unmanned aerial vehicle sprays liquid medicine downward, the blocking strips 42 extend downward, and it is not easy to accumulate large liquid droplets on the blocking strips 42, or the accumulated large liquid droplets will fall to the ground along the blocking strips 42 under the action of gravity.

[0089] However, for the case that the centrifugal atomization device is mounted on the unmanned vehicle, the centrifugal atomization device generally sprays the liquid medicine to the crops from the side of the crops (for example, the left side or the right side), and in most cases, the axis of the centrifugal atomization disc 10 is parallel to the ground (for example, when spraying horizontally to the left), or the axis of the centrifugal atomization disc 10 is at a certain angle with the ground (for example, when spraying upward to the left or downward to the left). In this way, the barrier strip 42 is mostly parallel to the ground or within a certain angle with the ground, and at this time, a certain amount of liquid droplets may accumulate on the barrier strip 42 to form a sediment. Among them, the liquid droplets accumulated on the barrier strip 42 may cause one or more of the following problems: first, the liquid droplets accumulated on the barrier strip 42 are visible to the user, which makes the user feel that this part of the liquid droplets has not been blown out by the spray, which is a waste and affects the user experience; second, if the liquid droplets do not fall downward until the centrifugal atomization device stops working, they may fall on the platform main body 200 and contaminate the platform main body 200; third, in some cases, these liquid droplets accumulated on the barrier strip 42 may also be sucked back by the fan 61, and the sucked liquid droplets may contaminate other parts.

[0090] In an embodiment, referring to Figure 3 , Figure 10 , the centrifugal atomization device is configured to rotate the outer cover 40. Exemplarily, the cover mounting portion 41 of the outer cover 40 is a mounting ring that is sleeved on the flow guide device 20 and is rotatably connected with the flow guide device 20. Alternatively, an annular connecting track 71 is arranged outside the flow guide device 20, and the cover mounting portion 41 of the outer cover 40 is rotatably mounted on the connecting track 71.

[0091] Alternatively, on the basis of the rotatable mounting of the outer cover 40, the centrifugal atomization device and the outer cover 40 in the centrifugal atomization spraying equipment 100 are configured such that, in the case that the centrifugal atomization device is in a working state, the rotation direction of the outer cover 40 is opposite to the rotation direction of the centrifugal atomization disc 10, that is, the centrifugal atomization disc 10 rotates around a first direction to spray the atomized liquid droplets outward, and the outer cover 40 rotates around a second direction, the first direction being opposite to the second direction. For example, the first direction is the clockwise direction and the second direction is the counterclockwise direction, or the first direction is the counterclockwise direction and the second direction is the clockwise direction. It can be understood that, when the centrifugal atomization device is working, the outer cover 40 rotates in the opposite direction of the centrifugal atomization disc 10, and when the liquid droplets sprayed by the centrifugal atomization disc 10 hit the barrier strip 42, the barrier strip 42 has a movement trend opposite to the liquid droplets due to the reverse rotation of the outer cover 40, and the liquid droplets are more likely to leave the barrier strip 42.

[0092] When the centrifugal atomization device is working, the outer cover 40 and the centrifugal atomization disc 10 rotate in opposite directions, which can bring at least one of the following effects: first, it can reduce the liquid deposited on the blocking strip 42, avoid or reduce the formation of a small amount of large droplets on the blocking strip 42, thereby improving the user experience, and avoiding subsequent dripping of the liquid droplets deposited on the blocking strip 42 from polluting other areas. Second, in the centrifugal atomization spraying device 100 of the present application, the blocking strip 42 of the reversely rotating outer cover 40 can reduce the speed of the centrifugal sprayed droplets, so that the droplets can be more easily controlled by the wind field blown by the fan 61, so that the atomized droplets can be stably blown by the fan 61 to the target area, and the mist field is more stable.

[0093] Among them, for the scheme that the outer cover 40 is rotatable, the rotation of the outer cover 40 can be realized by motor driving, or the outer cover 40 can be provided with fan blades to realize the rotation of the outer cover 40 by blowing the fan 61. Optionally, in the case that the centrifugal atomization device is in a working state, the rotation direction of the outer cover 40 is opposite to the rotation direction of the centrifugal atomization disc 10, and the rotation speed of the outer cover 40 is lower than that of the centrifugal atomization disc 10.

[0094] It should be noted that the centrifugal atomization device with a rotatable outer cover 40 can be applied to unmanned vehicles and unmanned aerial vehicles.

[0095] Please refer to Figure 12 、 Figure 13 , the centrifugal atomization spraying device 100 comprises the centrifugal atomization device in any of the foregoing embodiments, and further comprises a fan 61 and a wind deflector 62. Among them, the centrifugal atomization disc 10, the device main body and the fan 61 are arranged along the axial direction, the centrifugal atomization device is used for atomizing the liquid to be sprayed by the centrifugal atomization disc 10, and is used for spraying the atomized liquid by the centrifugal atomization disc 10 along the radial direction of the centrifugal atomization spraying device 100. The effect of the spray ejected by the centrifugal atomization disc 10 is similar to the schematic diagram in the figure (the thick dashed line in the figure is only used to provide a schematic diagram of the droplet path, and cannot be the only limitation of the present application). The fan 61 is located at the axial rear of the centrifugal atomization disc 10, and the fan 61 is used to blow the mist droplets ejected by the centrifugal atomization disc 10 to the target area.

[0096] The centrifugal atomization spraying device 100 can spray pesticides by matching the centrifugal atomization disc 10 with the fan 61. Compared with conventional pressure atomization spraying, the centrifugal atomization spraying device has the following effects: good atomization effect; finer atomized droplets can be obtained; the fine droplets can penetrate the crop canopy more deeply, cover more leaf and fruit surfaces, and improve the utilization rate and control effect of pesticides; the centrifugal atomization spraying device can control the rotational speed by adjusting the motor voltage, thereby accurately controlling the droplet size; the flexibility of the device allows precise adjustment of pesticide spraying according to different crop types, growth stages, and pest conditions; the centrifugal atomization spraying device is suitable for various pesticide formulations, including but not limited to powders, suspensions, and emulsifiable concentrates with poor water solubility, thereby expanding the selection range of pesticides; the spraying efficiency can be improved; the centrifugal atomization spraying device combined with the fan 61 can directly deliver droplets to the target area, reducing the drift and waste of pesticide liquid in the air, and improving the spraying efficiency; the device is not only suitable for pesticide spraying in large areas of farmland, but also suitable for fine management of small areas of crops in orchards and vegetable gardens.

[0097] The centrifugal atomization spraying device 100 of the present application can be applied to spraying pesticides on crops. For example, when it is necessary to spray pesticides on crops such as corn and cotton, the unmanned vehicle travels in the field, and the centrifugal atomization device works to throw and spray atomized droplets around the centrifugal atomization disc 10, and the fan 61 blows the atomized droplets to the target plants.

[0098] In an embodiment, referring to Figure 12 , Figure 13 The centrifugal atomization spraying device 100 further includes a wind deflector 62, both ends of the wind deflector 62 in the axial direction are respectively provided with an air inlet and an air outlet (not marked in the figure), and the end of the wind deflector 62 provided with the air inlet is connected with the fan 61. The wind deflector 62 can guide the surrounding airflow to flow along a predetermined path due to its specific design shape. The wind deflector 62 is used in combination with the fan 61 to allow the droplets to be blown more accurately to the target area under the action of wind, thereby reducing the drift and waste of droplets and reducing the power requirement of the fan 61.

[0099] The device main body of the centrifugal atomization device is located inside the wind deflector 62, i.e., the wind deflector 62 at least covers the outside of the device main body. Optionally, the fixing seat 31 of the driving device 30 is connected with the fan 61, so that the driving device 30 is at least located inside the wind deflector 62. The position of the centrifugal atomization disc 10 can be as follows:

[0100] First, as Figure 13 illustrated, in the axial direction of the centrifugal atomization spraying device 100, the centrifugal atomization disc 10 is located outside the wind deflector 62, i.e., the centrifugal atomization disc 10 is located on the side of the wind deflector 62 away from the fan 61, and the wind deflector 62 does not cover the outer periphery of the centrifugal atomization disc 10.

[0101] It can be understood that when the centrifugal atomization spraying device 100 is applied to an unmanned vehicle, the centrifugal atomization spraying device 100 is used to spray liquid medicine to crops on the side of the unmanned vehicle, for example, to crops on the left side, the right side, the front side, the back side, etc. of the unmanned vehicle. The centrifugal atomization disc 10 is arranged outside the wind deflector 62, avoiding the wind deflector 62 from surrounding the outer circle of the centrifugal atomization disc 10. In this way, during spraying (for example, when the centrifugal atomization spraying device 100 is configured to spray liquid medicine to the left front side or the upper left side of the unmanned vehicle), the small part of mist droplets sprayed outward by the centrifugal atomization disc 10 is reduced or avoided from floating in the air and finally settling on the inner wall of the wind deflector 62, reducing the possibility of liquid droplets on the inner wall of the wind deflector 62, reducing pollution and waste, and improving user experience.

[0102] It can also be understood that when the centrifugal atomization disc 10 is located outside the wind deflector 62, the plurality of barrier strips 42 surrounding the outer periphery of the centrifugal atomization disc 10 play a role in protecting the exposed centrifugal atomization disc 10.

[0103] Second, as shown in the figure, in the axial direction of the centrifugal atomization spraying device 100, the centrifugal atomization disc 10 is located inside the wind deflector 62.

[0104] In an embodiment, referring to Figure 12 The wind deflector 62 includes a wind deflector shell 621 and a first tongue 622 and a second tongue 623 arranged inside the wind deflector shell 621, and the first tongue 622 and the second tongue 623 are located on the opposite sides of the centrifugal atomization device. The inner wall of the wind deflector shell 621 and the first tongue 622 form a first expansion air duct 6201, and the inner wall of the wind deflector shell 621 and the second tongue 623 form a second expansion air duct 6202. The first expansion air duct 6201 and the second expansion air duct 6202 are both configured to extend away from the central axis of the wind deflector 62 from one end of the air inlet to one end of the air outlet, so as to play a role of roughly expanding.

[0105] For example, the first tongue 622 and the second tongue 623 are located on the upper and lower sides of the centrifugal atomization device, and the first expansion air duct 6201 and the second expansion air duct 6202 are respectively an upper expansion air duct and a lower expansion air duct. When the centrifugal atomization spraying device 100 sprays, the spraying range can be expanded upward and downward, so that the centrifugal atomization spraying device 100 on the unmanned vehicle can cover a larger area in the height direction of the crops, improving the spraying effect.

[0106] Referring to Figure 13The barrier strips 42 are located between the first flared air duct 6201 and the second flared air duct 6202 in the radial direction of the centrifugal atomization spraying device 100. The centrifugal atomization spraying device 100 can be divided into a central region, a transition region, and an air supply region along the radial direction. The central region, the transition region, and the air supply region all extend along the axial direction, and the transition region surrounds the outer periphery of the central region, and the air supply region surrounds the outer periphery of the transition region. The centrifugal atomization disc 10 is located in the central region, the barrier strips 42 of the outer cover 40 are located in the transition region, and the first flared air duct 6201 and the second flared air duct 6202 are located in the air supply region.

[0107] Exemplarily, Figure 15 Exemplarily Figure 14 Exemplarily, Figure 15 In S1, the central region, S2, the transition region, S3 to S8, which surround the outer periphery of the transition region, S3, the position blocked by the first tongue 622, S4, the region blocked by the second tongue 623, S5 to S8, which are all air supply 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 atomization disc 10), and S7 and S8 are the air outlets of the front-to-back air duct (S7 and S8 are located on the left and right sides of the centrifugal atomization disc 10). After the mist droplets are sprayed from the central region S1, they pass through the transition region S2 where the barrier strips 42 are located, and reach the S5 to S8 regions where they are well blown forward. Of course, a part of the mist droplets can also be blown forward after leaving the transition region. In other embodiments, the positions of the air outlets of the air ducts can also be adjusted.

[0108] It can be understood that the barrier strips 42 are arranged in the transition region, which is conducive to reducing the speed of the mist droplets and making it easier for the air field to control the mist droplets and stabilize the mist field. The mist droplets sprayed outward by the centrifugal atomization disc 10 first pass through the transition region. When the mist droplets collide with the barrier strips 42 of the outer cover 40 in the transition region, the barrier strips 42 can reduce the speed of the mist droplets flying out along the radial direction. In this way, the mist droplets are more easily controlled by the forward blowing air field when they reach the air supply region, so that the air field blows the mist droplets forward, and the mist field of the centrifugal atomization spraying device 100 is more stable.

[0109] It is also understandable that the baffle strip 42 is placed in the transition area, which is beneficial for secondary atomization of the droplets. In centrifugal atomizing spraying equipment 100, if a smaller droplet size is desired, increasing the rotational speed of the centrifugal atomizing disk 10 is generally considered. However, the inventors discovered that increasing the rotational speed of the centrifugal atomizing disk 10 may cause the droplets to maintain a high radial centrifugal velocity when they reach the air delivery area. Therefore, to obtain a stable mist field, the wind speed of the fan 61 needs to be increased. However, in this embodiment, the baffle strip 42 of the outer cover 40 surrounds the outer periphery of the centrifugal atomizing disk 10. Thus, the baffle strip 42 can further disperse and atomize the droplets, reducing the droplet size. This allows for the acquisition of smaller droplets without increasing the rotational speed of the centrifugal atomizing disk 10 or the wind speed of the fan 61.

[0110] In one embodiment, reference is made to Figure 8 , Figure 10 The outer cover 40 is connected to the main body of the device via a cover mounting part 41, which is located on the side of the centrifugal atomizing disc 10 near 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 that connects to the main body of the device (the cover mounting part 41) is located behind the centrifugal atomizing disc 10. This allows for quick disassembly and replacement of the centrifugal atomizing disc 10 when it becomes clogged and requires maintenance, or when it needs to be replaced to adjust the atomization effect. In one embodiment, referring to… Figure 8 , Figure 10 The outer cover 40 has a front opening, meaning that the outer ends 422 of the several baffles 42 are all free ends. The side of the centrifugal atomizing disc 10 facing away from the flow guiding device 20 is completely exposed through the front opening. There are no connecting ribs or connecting plates between the front ends of the several baffles 42, preventing the 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 avoid the settling of droplets on the outer cover 40, improving the user experience.

[0111] 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.

[0112] In one embodiment, such as Figure 11The movable platform can be an unmanned vehicle, and the platform body 200 can be a vehicle body. The centrifugal atomization spraying device 100 is arranged on the left and right sides of the vehicle body. The centrifugal atomization spraying device 100 arranged on the left side is used for spraying pesticide liquid to the crop plants on the left side of the vehicle body, and the centrifugal atomization spraying device 100 arranged on the right side is used for spraying pesticide liquid to the crop plants on the right side of the vehicle body. The direction of the centrifugal atomization spraying device 100 can be adjusted upward and / or downward, or adjusted toward the front and / or the rear of the vehicle.

[0113] Please refer to Figure 11 The movable platform comprises the centrifugal atomization spraying device 100 in any of the foregoing embodiments, and further comprises a platform body 200, and the centrifugal atomization spraying device 100 is mounted on the platform body 200. The movable platform can be an unmanned vehicle, or a manned vehicle.

[0114] The unmanned vehicle of the present application is mounted with the centrifugal atomization spraying device 100. Through the cooperation of the centrifugal atomization spraying device, the fan 61 and the platform body 200, the movable platform can walk in the field and automatically spray pesticide. The technology of the present application has high application value in modern agriculture. This spraying method is suitable for various crops, has the advantages of adjustable spraying amount, adjustable droplet size, good atomization spraying effect, improved work efficiency and reduced labor cost, etc. Among them, the movable platform of the present application is suitable for spraying pesticide for various types of crops. For example, for low plant crops (peanuts, sweet potatoes, etc.), the plant height of these crops is relatively low. By adjusting the angle of the centrifugal atomization spraying device 100, each part of the plant can be easily covered, ensuring uniform pesticide spraying. For medium-height plant crops (cotton, soybeans, shelf cucumbers, shelf eggplants, corn, lemons, wheat, etc.), the centrifugal atomization device cooperates with the appropriate fan 61 to effectively blow the pesticide droplets to the leaves and stems of the crops, improving the spraying effect.

[0115] The movable platform is mounted with the centrifugal atomization spraying device 100. The movable platform can adjust the driving speed according to the height and density of the crops, and can adjust the spraying angle by adjusting the angle of the centrifugal atomization spraying device 100, so as to accurately spray the target area.

[0116] The movable platform is a plant protection vehicle. When the plant protection vehicle is applied in the field of agricultural and forestry plant protection, it can drive in farmland, orchard, vegetable garden and other plots, such as Figure 11The pesticide is sprayed from the side of the crop plant, and the spraying effect is good. The centrifugal atomization spraying device 100 of the plant protection vehicle has a certain penetration of the mist droplets, and the mist droplets can more accurately reach the target plant crops, and the mist droplets are small in particle size and uniformly distributed, the mist droplets can enter the inside of the crop plant from the gaps between the leaves along the airflow, which is beneficial to more completely cover the crop leaves, fruits and the like, can improve the problem of uneven acceptance of pesticide solution by the outer and inner areas of the crops (for example, the outer end of the leaf can receive the pesticide solution, but the root may not receive the pesticide solution), can improve the problem of uneven acceptance of pesticide solution by the top and bottom of the crops, and improve the control effect.

[0117] In an embodiment, the centrifugal atomization spraying device 100 comprises a mounting seat 80, and the motor is adjustably or fixedly mounted on the mounting seat 80, and the mounting seat 80 is adjustably or fixedly mounted on the platform body 200.

[0118] In the description herein, it should be understood that the terms "upper", "lower", "left", "right", and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only used to distinguish in the description, and do not have special meanings. In the description of the specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. In addition, it should be understood that although the specification is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand. The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only to explain the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanation here, those skilled in the art do not need to make creative efforts to think of other specific embodiments of the present application, and these embodiments will fall within the scope of protection of the present application.

Claims

1. A centrifugal atomizing device, characterized in that, include: The main body of the device includes a drive unit (30); Centrifugal atomizing disc (10) is used to rotate and throw out liquid. One surface of the disc is an atomizing surface (1101). The atomizing surface (1101) has a plurality of atomizing channels (1201) arranged around the rotation axis. The driving device (30) is used to drive the centrifugal atomizing disc (10) to rotate around the rotation axis. An outer cover (40) is disposed around the centrifugal atomizing disc (10) and is at least partially located on the radially outer side of the atomizing channel (1201) of the centrifugal atomizing disc (10) so that the liquid ejected from the atomizing channel (1201) is dispersed after impacting the outer cover (40).

2. The centrifugal atomizing device according to claim 1, characterized in that, The outer cover (40) includes a cover mounting part (41) and a plurality of partition strips (42); the plurality of partition strips (42) surround the outer periphery of the centrifugal atomizing disk (10).

3. The centrifugal atomizing device according to claim 2, characterized in that, The partition strip (42) includes a strip body (421) and an extended end (422) located on the front side of the strip body (421). The strip body (421) is located outside the area where the atomizing channel (1201) is located, and the extended end (422) extends forward relative to the area where the atomizing channel (1201) is located.

4. The centrifugal atomizing device according to claim 2, characterized in that, The cover mounting part (41) is connected to the main body of the device.

5. The centrifugal atomizing device according to claim 1, characterized in that, The outer cover (40) is at least partially located in the direction of the atomizing channel (1201) radially away from the axis of rotation along the centrifugal atomizing disk (10).

6. The centrifugal atomizing device according to claim 1, characterized in that, The centrifugal atomizing disc (10) and the outer cover (40) are arranged axially and located on the front side of the main body of the device.

7. The centrifugal atomizing device according to claim 2, characterized in that, The centrifugal atomizing disc (10) includes a disc body (11) and at least one ring of atomizing groups. Each ring of atomizing groups includes a plurality of atomizing protrusions (12) arranged around the rotation axis. The atomizing protrusions (12) are disposed on the atomizing surface (1101), and the atomizing channel (1201) is formed between adjacent atomizing protrusions (12).

8. The centrifugal atomizing device according to claim 7, characterized in that, The distance by which the baffle strip (42) extends forward relative to the atomizing channel (1201) is the extension distance d1; the atomizing protrusion (12) located on the outermost ring of the disc (11) is the outer ring protrusion (121), and the height of the outer ring protrusion (121) is d2; d1 < d2, 0.05 ≤ d1 / d2 ≤ 0.

4.

9. The centrifugal atomizing device according to claim 2, characterized in that, The outer peripheral surface of the centrifugal atomizing disk (10) in the radial direction is the outer peripheral surface (1102) of the disk. The partition strip (42) and the centrifugal atomizing disk (10) are arranged at intervals in the radial direction. The radial distance between the partition strip (42) and the outer peripheral surface (1102) of the disk is d3; 0.1≤d1 / d3≤0.

3.

10. The centrifugal atomizing device according to claim 3, characterized in that, The atomizing surface (1101) is located on the side of the disc (11) close to the main body of the device, and the extended end (422) extends forward relative to the atomizing surface (1101); Alternatively, the atomizing surface (1101) is located on the side of the disc (11) away from the main body of the device, and the atomizing protrusion (12) located on the outermost ring of the disc (11) is the outer ring protrusion (121), and the extended end (422) extends forward relative to the outer ring protrusion (121).

11. The centrifugal atomizing device according to any one of claims 2 to 4, 7 to 10, characterized in that, The distance by which the baffle strip (42) extends forward relative to the atomizing channel (1201) is the extension distance d1, where 0.5mm≤d1≤1cm; Alternatively, the baffle (42) may be an atomizing tooth, and the baffle (42) may have a tip (4202) on the side near the centrifugal atomizing disc (10), the tip (4202) being used to disperse droplets.

12. The centrifugal atomizing device according to any one of claims 2 to 4, 7 to 10, characterized in that, The main body of the device also includes a flow guiding device (20), which is used to deliver liquid to a plurality of atomizing channels (1201) of the centrifugal atomizing disk (10); the flow guiding device (20) and the centrifugal atomizing disk (10) are arranged along the axial direction; The cover mounting part (41) is a mounting ring, which is fitted onto the outside of the flow guiding device (20). The mounting ring is rotatably connected to or fixedly connected to the flow guiding device (20). The outer cover (40) also includes an outer ring (43), a plurality of the partition strips (42) are disposed on one side of the outer ring (43) in the axial direction, the mounting ring is located inside the outer ring (43), and the outer ring (43) is connected to the mounting ring.

13. A centrifugal atomizing spraying device, characterized in that, The centrifugal atomizing device according to any one of claims 1 to 9 further includes a fan (61) and an air guide shroud (62); The fan (61) is located on the side of the main body of the device away from the centrifugal atomizing disc (10), and the air guide shroud (62) is connected to the fan (61) so that the air blown by the fan (61) enters the air guide shroud (62). The centrifugal atomizing disc (10) is located on the side of the air guide shroud (62) away from the fan (61), or the centrifugal atomizing disc (10) is located inside the air guide shroud (62).

14. A mobile platform, characterized in that, It includes a platform body (200) and a centrifugal atomizing spraying device (100) as described in claim 13, wherein the centrifugal atomizing spraying device (100) is installed on the platform body (200).

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