Spreading device throwing disc, spreading device and unmanned spreading operation equipment
By designing a guide ring area and alternating guide plates on the spreader's disc, combined with receiving and discharging ring areas, the problem of uneven spreading was solved, achieving a more uniform and precise spreading effect.
Patent Information
- Application Number
- CN202511875346.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-02-24
AI Technical Summary
In existing unmanned spreading equipment, the disc structure of the spreader causes significant deviations in the distribution of granular material in various directions, resulting in poor spreading uniformity.
The spreader adopts a spreading disc design, including a guide ring area, a first guide plate and a second guide plate. The guide plates are alternately distributed and extend in an involute shape. Combined with the receiving ring area and the discharge ring area, the material uniformity is improved through guidance and redistribution.
It improves the uniformity of material distribution in all directions by the spreader, enhances the uniformity of the spreading operation, and improves the accuracy and efficiency of spreading.
Smart Images
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Abstract
Description
Technical Field
[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a seeder disc, a seeder, and unmanned seeding equipment. Background Technology
[0002] Unmanned seeding equipment has been gradually promoted in various fields. For example, in the field of plant protection, using unmanned seeding equipment to complete seeding operations has a significant efficiency advantage over the traditional manual seeding operations.
[0003] In existing unmanned seeding equipment, the active device, such as the seeder, mostly uses centrifugal force to throw the granular material to the outside, achieving a good seeding rate. However, due to the limited structure of the seeder's throwing disc, the distribution of the seeded granular material in various directions varies significantly, resulting in poor seeding uniformity. Summary of the Invention
[0004] To address the above problems or situations, this invention provides a spreader tray, a spreader, and an unmanned spreading operation device, which can improve the spreading uniformity of the spreader.
[0005] In a first aspect, embodiments of the present invention provide a distributor disc, comprising:
[0006] The disc body includes a material guiding ring area that diffuses from the center of the upper surface of the disc body to the periphery of the disc body, wherein the material guiding ring area includes a first sub-ring area and a second sub-ring area from the inside to the outside;
[0007] Multiple first guide plates are evenly spaced in the area of the guide ring region, and the plate body of each first guide plate extends in an involute line from the inner ring edge of the first sub-ring region to the outer ring edge of the second sub-ring region.
[0008] Multiple second guide plates are evenly spaced in the region of the second sub-ring area. The plate body of each second guide plate extends in an involute shape from the inner ring edge of the second sub-ring area to the outer ring edge of the second sub-ring area. The first guide plate and the second guide plate are at least partially rotationally symmetrical, and the first guide plate and the second guide plate are alternately distributed within different central angle ranges of the disc body.
[0009] In one embodiment of the spreader disc, the surfaces of the first guide plate and the second guide plate are both vertically arranged, and the height of the plate edge on the top side gradually decreases from the inside to the outside.
[0010] The first guide plate includes a first guide extension section and a second guide extension section extending from the inside to the outside, and the second guide extension section is rotationally symmetrical with the second guide plate.
[0011] In one embodiment of the spreader disc, at least three first guide plates and at least three second guide plates are evenly spaced on the disc body;
[0012] Both the first guide plate and the second guide plate are integrally formed with the disc body.
[0013] In one embodiment of the spreader disc, a receiving ring area is further provided on the inner ring side of the guide ring area;
[0014] Multiple receiving plates are evenly spaced in the receiving ring area. Each receiving plate includes a receiving slope facing away from the upper surface of the disc. The receiving slope includes a low-position setting point near the inner ring edge of the receiving ring area and a high-position setting point near the outer ring edge of the receiving ring area. The low-position setting point and the high-position setting point are respectively located at two opposite vertices of the receiving slope.
[0015] In one embodiment of the spreader disc, at least three receiving plates are evenly spaced in the receiving ring area. Each receiving plate includes a vertical plate and an inclined plate disposed on the vertical plate. The receiving inclined surface is formed on the surface of the inclined plate.
[0016] The center of the polygon formed by the intersection of the extended lines of each of the vertical plates coincides with the axis of the disk.
[0017] The extension line of each of the vertical plates is located between the radial line passing through the extension end of the adjacent first guide plate and the radial line passing through the extension beginning of the adjacent second guide plate.
[0018] In one embodiment of the spreader disc, the included angle formed between the interconnected inclined plate and the vertical plate ranges from 120 degrees to 150 degrees; and / or,
[0019] The angle between the intersection line of the interconnected inclined plate and the vertical plate and the horizontal plane ranges from 5 degrees to 25 degrees.
[0020] In one embodiment of the spreader's dispensing disc, a gap ring region is further provided between the receiving ring region and the guiding ring region. The distance from the inner edge of the gap ring region to its outer edge satisfies a first preset proportional relationship with the distance from the inner edge of the receiving ring region to its outer edge; and / or,
[0021] The distance from the inner edge of the first sub-ring region to its outer edge satisfies a second preset proportional relationship with the distance from the inner edge of the second sub-ring region to its outer edge.
[0022] In one embodiment of the spreader disc, the radial line extending outward from the center of the disc through the starting end of the first guide plate forms a first preset angle with the radial line passing through its ending end; and / or,
[0023] The radial line extending outward from the center of the disc through the starting end of the second guide plate forms a second preset angle with the radial line at its ending end; and / or,
[0024] The angle between a radial line extending outward from the center of the disc through the starting point of the first guide plate and a radial line through the ending point of the adjacent second guide plate is less than or equal to a third preset angle; and / or,
[0025] The angle between a radial line extending outward from the center of the disc through the extended end of the first guide plate and a radial line passing through the extended beginning of the adjacent second guide plate is less than or equal to a fourth preset angle; and / or,
[0026] The included angle between a radial line extending outward from the center of the disc through the extended end of the first guide plate and a radial line passing through the extended end of the adjacent second guide plate is less than or equal to a fifth preset angle.
[0027] In one embodiment of the spreader disc, the disc body is further provided with a discharge ring area located on the outer ring side of the guide ring area;
[0028] In the region of the discharge ring area, there are multiple first discharge plates and multiple second discharge plates, all of which extend radially. Each first discharge plate is connected to the extended end of the corresponding first guide plate, and each second discharge plate is connected to the extended end of the corresponding second guide plate.
[0029] In a second aspect, the present invention provides a spreader, including the spreader disc described above.
[0030] In one embodiment of the spreader, it further includes a material hopper, a feeder, and a discharge cylinder. The feeder has a receiving port and an output port. The discharge port of the material hopper is connected to the receiving port, and the inlet port of the discharge cylinder is connected to the output port.
[0031] The spreader disc is located at the output port of the discharge cylinder.
[0032] In one embodiment of the spreader, a baffle plate covering the spreader's spinning disc is provided at the output port of the discharge cylinder, and the lower edge of the baffle plate is set at a height equal to or lower than the circumference of the spreader's spinning disc.
[0033] Thirdly, the present invention also provides an unmanned spreading operation device, including the spreader disc as described above, or the spreader as described above.
[0034] Beneficial effects:
[0035] In this invention, a first guide plate and a second guide plate are provided on the disc. The distances from the starting points of the first and second guide plates to the center of the disc are different, while the distances from their ending points to the center of the disc are the same. Accordingly, the material falling on the disc can be guided and distributed by the adjacent first guide plates. Since the first and second guide plates are alternately distributed, and there is a second guide plate between adjacent first guide plates, the material falling between adjacent first guide plates can be further guided and distributed by the second guide plate located between them, thereby improving the uniformity of material distribution.
[0036] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.
[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0038] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0039] Figure 1 A schematic diagram illustrating the principle structure of the spreader disc provided by the present invention;
[0040] Figure 2 A top view of the spreader disc provided by the present invention in one embodiment;
[0041] Figure 3 A schematic front view of the spreader disc provided by the present invention in one embodiment;
[0042] Figure 4 A partial perspective structural diagram of the dispersant provided by the present invention in one embodiment;
[0043] Figure 5 Simulation diagram of the spreading effect of the spreader provided by the present invention;
[0044] Figure 6 To Figure 5 The statistical chart is obtained by statistically analyzing particulate materials in each quadrant.
[0045] Explanation of reference numerals in the attached figures:
[0046] 1. Spreader disc spinning;
[0047] 11. Disc body; 111. Material guide ring area; 1111. First sub-ring area; 1112. Second sub-ring area;
[0048] 12. First guide plate;
[0049] 13. Second guide plate;
[0050] 2. Spreader disc spinning;
[0051] 21. Disc body; 211. Material guiding ring area; 2111. First sub-ring area; 2112. Second sub-ring area; 212. Material receiving ring area; 213. Gap ring area; 214. Discharge ring area;
[0052] 22. First guide plate;
[0053] 23. Second guide plate;
[0054] 24. Receiving plate; 241. Vertical plate; 242. Inclined plate; 2421. Receiving slope;
[0055] 25. Discharge plate; 251. First discharge plate; 252. Second discharge plate;
[0056] 3. Spreader; 31. Feeding cylinder; 32. Baffle plate. Detailed Implementation
[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, 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.
[0058] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.
[0059] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0060] This invention provides a spreader disc structure that can improve the uniformity of material distribution in all directions when it is thrown out by the spreader disc, thus helping to improve the problem of poor spreading uniformity when the spreader is performing spreading operations.
[0061] See Figure 1 The diagram below illustrates the principle structure of the spreader disc provided by the present invention. The spreader disc 1 may include a disc body 11, which is a circular disc body. A guide ring area 111 is provided from the center of the upper surface of the disc body 11 to the periphery of the disc body. The guide ring area 111 includes a first sub-ring area 1111 and a second sub-ring area 1112 from the inside to the outside, both of which are coaxially arranged with the disc body 11.
[0062] On the upper surface of the disc body 11, there are also multiple first guide plates 12 and multiple second guide plates 13, wherein:
[0063] Each of the first guide plates 12 is evenly spaced within the guide ring area 111, and the plate body of each of the first guide plates 12 extends in an involute shape from the inner ring edge of the first sub-ring area 1111 to the outer ring edge of the second sub-ring area 1112.
[0064] Each of the second guide plates 13 is evenly spaced within the second sub-ring area 1112. The plate body of each second guide plate 13 extends in an involute shape from the inner ring edge of the second sub-ring area 1112 to the outer ring edge of the second sub-ring area 1112. The first guide plate 12 and the second guide plate 13 are at least partially rotationally symmetrical, that is, when the first guide plate 12 or the second guide plate 13 is rotated to a specified angle, their plates can partially overlap. At the same time, the first guide plate 12 and the second guide plate 13 are alternately distributed within different central angle ranges of the disc body 11.
[0065] In this invention, the distances from the starting point of the extension of the first guide plate 12 and the starting point of the extension of the second guide plate 13 to the center of the disk 11 are different, while the distances from the ending points of their extensions to the center of the disk 11 are the same. Accordingly, the material falling on the disk 11 can be guided and distributed by the adjacent first guide plates 12. Since the first guide plates 12 and the second guide plates 13 are alternately distributed, and there is a second guide plate 13 between adjacent first guide plates 12, the material falling between adjacent first guide plates 12 can also be guided and distributed again by the second guide plate 13 located between them, thereby improving the uniformity of material distribution.
[0066] See Figures 2 to 6 The present invention provides an exemplary embodiment of the structure of a spreader disc and a spreader in one embodiment. The spreader disc 2 includes a disc body 21 and multiple first guide plates 22 and multiple second guide plates 23 disposed on the disc body 21. The disc body 21 includes a guide ring area 211 that diffuses from the center of the upper surface of the disc body 21 to the periphery of the disc. The guide ring area 211 may include a first sub-ring area 2111 and a second sub-ring area 2112 from the inside to the outside.
[0067] Each of the first guide plates 22 is evenly spaced within the guide ring area 211, and the plate body of each of the first guide plates 22 extends in an involute shape from the inner ring edge of the first sub-ring area 2111 to the outer ring edge of the second sub-ring area 2112.
[0068] Each of the second guide plates 23 is evenly spaced within the second sub-ring area 2112. The plate body of each second guide plate 23 extends in an involute shape from the inner ring edge of the second sub-ring area 2112 to the outer ring edge of the second sub-ring area 2112. The first guide plate 22 and the second guide plate 23 are at least partially rotationally symmetrical, and the first guide plate 22 and the second guide plate 23 are alternately distributed within different central angle ranges of the disc body 21. It can be understood that adjacent first guide plates 22 can form a guide channel for material to pass through, and within this guide channel, a second guide plate 23 is also provided to form two further guide channels with the first guide plates 22 adjacent to its two sides.
[0069] More specifically, both the first guide plate 22 and the second guide plate 23 are vertically oriented, and the height of their top edges gradually decreases from the inside out. That is, the top edge of the first guide plate 22 closest to the center of the disc 21 has the highest point, while the top edge closest to the periphery of the disc 21 has the lowest point. The second guide plate 23 is similarly designed and will not be described further here.
[0070] The first guide plate 22 may include a first guide extension section (not shown) and a second guide extension section (not shown) extending from the inside out. The first guide extension section extends from the inner ring edge of the first sub-ring region 2111 to the outer ring edge of the first sub-ring region 2111 or the inner ring edge of the second sub-ring region 2112; the second guide extension section extends from the outer ring edge of the first sub-ring region 2111 or the inner ring edge of the second sub-ring region 2112 to the outer ring edge of the second sub-ring region 2112. The outer ring edge of the first sub-ring region 2111 and the inner ring edge of the second sub-ring region 2112 may coincide, while the second guide extension section is rotationally symmetrical with the second guide plate 23.
[0071] like Figure 2 As shown, three first guide plates 22 and three second guide plates 23 are evenly spaced on the disc body 21. The first guide plates 22 and the second guide plates 23 are alternately distributed, that is, a second guide plate 23 is provided between two adjacent first guide plates 22, and a first guide plate 22 is provided between two adjacent second guide plates 23. Preferably, the first guide plates 22 and the second guide plates 23 are integrally formed with the disc body 21. Of course, in other embodiments, the first guide plates 22 and the second guide plates 23 can also be provided on the disc body 21 by welding, or the disc body 21 can have multiple insertion holes corresponding to the first guide plates 22 and the second guide plates 23 respectively, so the first guide plates 22 and the second guide plates 23 can also be fixed on the disc body 21 by plugging.
[0072] In one embodiment, the upper surface of the disc 21 may also be provided with a receiving ring area 212, which may be located on the inner ring side of the guiding ring area 211. Multiple receiving plates 24 are evenly spaced within the receiving ring area 212. Each receiving plate 24 includes a receiving inclined surface 2421 facing away from the upper surface of the disc 21. The receiving inclined surface 2421 includes a low-position setting point near the inner ring side of the receiving ring area 212 and a high-position setting point near the outer ring side of the receiving ring area 212. The low-position setting point and the high-position setting point are respectively located at two opposite vertices of the receiving inclined surface 2421, thereby facilitating the guidance of material falling on the receiving plate 24 to a position closer to the center of the disc 21 under the action of the receiving inclined surface 2421.
[0073] Preferably, the receiving inclined surface 2421 is at least partially oriented toward the material guiding channel formed by the adjacent first guide plate 22 and the second guide plate 23, which can be formed by the adjacent first guide plate 22 or by the adjacent first guide plate 22 and the second guide plate 23.
[0074] Specifically, the receiving ring area 212 is provided with three receiving plates 24. Each receiving plate 24 may include a vertical plate 241 and an inclined plate 242 disposed on the vertical plate 241. The receiving inclined surface 2421 is formed on the surface of the inclined plate 242. Preferably, the center of the triangle formed by the intersection of the extended lines of each of the vertical plates 241 coincides with the axis of the disk body 21. It can be understood that when the number of receiving plates 24 is four, the center of the quadrilateral formed by the intersection of the extended lines of each of the vertical plates 241 also coincides with the axis of the disk body 21. Here, the extension line of each vertical plate 241 is located between the radial line passing through the extension end of the adjacent first guide plate 22 and the radial line passing through the extension beginning of the adjacent second guide plate 23. That is, the projection of the vertical plate 241 from the center of the disc 21 onto the periphery of the disc 21 is located between the projection of the extension end of the adjacent first guide plate 22 and the projection of the extension beginning of the adjacent second guide plate 23.
[0075] The included angle A formed between the interconnected inclined plate 242 and the vertical plate 241 ranges from 120 degrees to 150 degrees. Figure 3 In this context, the included angle between the two is 135 degrees. Furthermore, the angle between the intersection line of the interconnected inclined plate 242 and the vertical plate 241 and the horizontal plane ranges from 5 degrees to 25 degrees. Figure 3 The angle between the two is 15 degrees. The angled structure between the inclined plate 242 and the vertical plate 241 helps to guide the material to a position closer to the center of the disc 21, thereby increasing the travel distance of the material from the upper surface of the disc 21 to the periphery of the disc 21 and increasing the speed at which the material is thrown out of the disc 21.
[0076] like Figure 2 As shown, a gap ring area 213 may also be provided on the upper surface of the disc body 21. The gap ring area 213 is located between the receiving ring area 212 and the guiding ring area 211. Specifically, the distance from the inner ring edge to the outer ring edge of the gap ring area 213 satisfies a first preset proportional relationship with the distance from the inner ring edge to the outer ring edge of the receiving ring area 212. Specifically, the former distance is 3 to 4 times the latter distance. In addition, the distance from the inner ring edge to the outer ring edge of the first sub-ring area 2111 satisfies a second preset proportional relationship with the distance from the inner ring edge to the outer ring edge of the second sub-ring area 2112. Specifically, the former distance is 1.5 to 2 times the latter distance.
[0077] In this embodiment, the radial line extending outward from the center of the disc body 21 through the starting end of the first guide plate 22 forms a first preset angle with the radial line extending to the ending end of the first guide plate 22. The first preset angle range here can be [30, 55].
[0078] The radial line extending outward from the center of the disc 21 through the starting end of the second guide plate 23 forms a second preset angle with the radial line at its ending end. The second preset angle range here can be [20, 45].
[0079] The included angle between the radial line extending outward from the center of the disc 21 through the beginning of the first guide plate 22 and the radial line extending through the end of the adjacent second guide plate 23 is less than or equal to a third preset angle, where the third preset angle can be 10 degrees.
[0080] The angle between the radial line extending outward from the center of the disc 21 through the extended end of the first guide plate 22 and the radial line extending from the extended beginning of the adjacent second guide plate 23 is less than a fourth preset angle, where the fourth preset angle can be 40 degrees.
[0081] The included angle between the radial line extending outward from the center of the disc through the extended end of the first guide plate 22 and the radial line extending through the extended end of the adjacent second guide plate 23 is less than or equal to a fifth preset angle, where the fifth preset angle can be 60 degrees.
[0082] In one embodiment of the spreader disc provided by the present invention, the projection of the first guide plate 22 from the center of the disc 21 towards the periphery of the disc 21 does not coincide with the projection of the second guide plate 23 from the center of the disc 21 towards the periphery of the disc 21. Accordingly, the two guide plates will not concentrate the material they guide, which helps to improve the uniformity of the material being thrown out of the disc 21.
[0083] In one embodiment of the spreader disc provided by the present invention, the disc body 21 is further provided with a discharge ring area 214 located on the outer ring side of the guide ring area 211. A discharge plate 25 is provided within the discharge ring area 214. Specifically, the discharge plate 25 includes multiple first discharge plates 251 and multiple second discharge plates 252, all extending radially. Each first discharge plate 251 is connected to the extended end of a corresponding first guide plate 22, and each second discharge plate 252 is connected to the extended end of a corresponding second guide plate 23.
[0084] Furthermore, a gap ring area can be provided between the discharge ring area 214 and the periphery of the disc body 21, where the material can be redistributed, thereby improving the uniformity of the material thrown out from the disc body 21.
[0085] like Figure 4As shown, the present invention also provides a spreader 3, which is configured with a spreader disc 2 as described above. Specifically, the spreader 3 may include a discharge cylinder 31, and the spreader disc 2 is located at the discharge output port of the discharge cylinder 31. More specifically, the discharge cylinder 31 may include a top port located on the top side and an output port located on the bottom side, and an inlet port is provided on the cylinder body of the discharge cylinder 31.
[0086] The spreader 3 may further include a hopper (not shown) and a conveyor (not shown). The hopper is used to hold materials and has a discharge port for discharging materials. The conveyor is used to transport the received materials to the discharge cylinder 31. It has a receiving port and an output port. The receiving port is connected to the discharge port of the hopper, while the output port is connected to the inlet port of the discharge cylinder 31. Therefore, after the material enters the conveyor through the hopper, it is conveyed by the conveyor and enters the discharge cylinder 31 from the inlet port. The material entering the discharge cylinder 31 falls onto the spreader's slinger 2 under the action of gravity.
[0087] In this embodiment, a baffle 32 is provided at the output port position on the bottom side of the discharge cylinder 31, covering the spreader disc 2. The lower edge of the baffle 32 is set at a height equal to or lower than the circumference of the spreader disc 2. This allows for collision and guidance of all materials thrown out by the spreader disc 2, or collision and guidance of materials thrown out by the spreader disc 2 at a certain throwing height (higher than the disc body 21). Therefore, materials can be spread as much as possible within the designated area below the spreader 3, improving the directionality of the spreading operation and contributing to more precise spreading.
[0088] More specifically, the baffle 32 includes an upper diameter port that matches the output port of the discharge cylinder 31. The disc body extends downwards from the upper diameter port in an expanding manner until it reaches the lower diameter port located at the bottom of the baffle 32. The spreader disc 2 is located within the lower diameter port, and a gap is formed between the spreader disc 2 and the lower diameter port for material to rebound and fall.
[0089] Some of the material falling onto the spreader's throwing disc 2 falls between adjacent first guide plates 22, where it is guided and distributed. The extended involute structure facilitates relatively smooth material movement. Simultaneously, under the centrifugal force of the spreader's throwing disc 2, the material moves towards the periphery of the disc body 21, and is then further guided and distributed by the second guide plate 23. This improves the uniformity of material distribution as it is thrown from the disc body 21.
[0090] In addition, another portion of the material falling onto the spreader's swivel disc 2 is received by the receiving plate 24 and, guided by the receiving inclined surface 2421, moves towards the center of the disc body 21, so that some material can be relatively concentrated near the center of the disc body 21 for subsequent redistribution. Under the centrifugal force of the spreader's swivel disc 2, the material moves towards the periphery of the disc body 21, enters the gap ring area 213 for redistribution, and then enters the guiding channel formed by the adjacent first guide plate 22 for further guidance and distribution. Subsequently, the material is further guided and distributed by the second guide plate 23 within this guiding channel, and then discharged through the corresponding discharge plate.
[0091] like Figure 5 and Figure 6 The image shows the spreading effect of the spreader using the spreader disc 2 provided by this invention when the auger speed is set to a first preset value, such as 600 rpm, and the spreader disc speed is set to a second preset value, such as 1100 rpm. Figure 5 In this process, the dispersed particulate material has a relatively uniform distribution in all directions, and the particulate material in each quadrant is statistically analyzed, such as... Figure 6 As shown, in the first to fourth quadrants, there are 1477 particles in the first quadrant (corresponding to the front right), 1539 particles in the second quadrant (corresponding to the front left), 1433 particles in the third quadrant (corresponding to the rear left), and 1453 particles in the fourth quadrant (corresponding to the rear right). The maximum difference in the number of particles in each quadrant is 106.
[0092] The present invention also provides an unmanned seeding operation device, which may include the seeder disc 2 as described above, or the seeder 3 as described above. The unmanned seeding operation device may be a multi-rotor unmanned aerial vehicle or a fixed-wing unmanned aerial vehicle, or a hybrid-wing unmanned aerial vehicle, or an unmanned vehicle.
[0093] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention.
Claims
1. A spreader disc, characterized in that, include: The disc body includes a material guiding ring area that diffuses from the center of the upper surface of the disc body to the periphery of the disc body, wherein the material guiding ring area includes a first sub-ring area and a second sub-ring area from the inside to the outside; Multiple first guide plates are evenly spaced in the area of the guide ring region, and the plate body of each first guide plate extends in an involute line from the inner ring edge of the first sub-ring region to the outer ring edge of the second sub-ring region. Multiple second guide plates are evenly spaced in the region of the second sub-ring area. The plate body of each second guide plate extends in an involute shape from the inner ring edge of the second sub-ring area to the outer ring edge of the second sub-ring area. The first guide plate and the second guide plate are at least partially rotationally symmetrical, and the first guide plate and the second guide plate are alternately distributed within different central angle ranges of the disc body.
2. The spreader disc as described in claim 1, characterized in that, The surfaces of the first guide plate and the second guide plate are both vertically arranged, and the height of the plate edge on the top side gradually decreases from the inside to the outside. The first guide plate includes a first guide extension section and a second guide extension section extending from the inside to the outside, and the second guide extension section is rotationally symmetrical with the second guide plate.
3. The spreader disc as described in claim 2, characterized in that, At least three first guide plates and at least three second guide plates are evenly spaced on the disc body; Both the first guide plate and the second guide plate are integrally formed with the disc body.
4. The spreader disc as described in any one of claims 1 to 3, characterized in that, A receiving ring area is also provided on the inner ring side of the material guiding ring area; Multiple receiving plates are evenly spaced in the receiving ring area. Each receiving plate includes a receiving slope facing away from the upper surface of the disc. The receiving slope includes a low-position setting point near the inner ring edge of the receiving ring area and a high-position setting point near the outer ring edge of the receiving ring area. The low-position setting point and the high-position setting point are respectively located at two opposite vertices of the receiving slope.
5. The spreader disc as described in claim 4, characterized in that, At least three receiving plates are evenly spaced within the receiving ring area. Each receiving plate includes a vertical plate and an inclined plate disposed on the vertical plate. The receiving inclined surface is formed on the surface of the inclined plate. The center of the polygon formed by the intersection of the extended lines of each of the vertical plates coincides with the axis of the disk. The extension line of each of the vertical plates is located between the radial line passing through the extension end of the adjacent first guide plate and the radial line passing through the extension beginning of the adjacent second guide plate.
6. The spreader disc as described in claim 5, characterized in that, The angle formed between the interconnected inclined plate and the vertical plate ranges from 120 degrees to 150 degrees; and / or, The angle between the intersection line of the interconnected inclined plate and the vertical plate and the horizontal plane ranges from 5 degrees to 25 degrees.
7. The spreader disc as described in claim 4, characterized in that, A gap ring area is further provided between the receiving ring area and the guiding ring area. The distance from the inner ring edge to the outer ring edge of the gap ring area satisfies a first preset proportional relationship with the distance from the inner ring edge to the outer ring edge of the receiving ring area; and / or, The distance from the inner edge of the first sub-ring region to its outer edge satisfies a second preset proportional relationship with the distance from the inner edge of the second sub-ring region to its outer edge.
8. The spreader disc as described in any one of claims 1 to 3, characterized in that, The radial line extending outward from the center of the disc through the starting point of the first guide plate forms a first preset angle with the radial line passing through its ending point; and / or, The radial line extending outward from the center of the disc through the starting end of the second guide plate forms a second preset angle with the radial line at its ending end; and / or, The angle between a radial line extending outward from the center of the disc through the starting point of the first guide plate and a radial line through the ending point of the adjacent second guide plate is less than or equal to a third preset angle; and / or, The angle between a radial line extending outward from the center of the disc through the extended end of the first guide plate and a radial line passing through the extended beginning of the adjacent second guide plate is less than or equal to a fourth preset angle; and / or, The included angle between a radial line extending outward from the center of the disc through the extended end of the first guide plate and a radial line passing through the extended end of the adjacent second guide plate is less than or equal to a fifth preset angle.
9. The spreader disc as described in any one of claims 1 to 3, characterized in that, The disc body is also provided with a discharge ring area located on the outer ring side of the guide ring area; In the region of the discharge ring area, there are multiple first discharge plates and multiple second discharge plates, all of which extend radially. Each first discharge plate is connected to the extended end of the corresponding first guide plate, and each second discharge plate is connected to the extended end of the corresponding second guide plate.
10. A spreader, characterized in that, Includes the spreader disc as described in any one of claims 1 to 9.
11. The spreader as claimed in claim 10, characterized in that, It also includes a material bin, a feeder, and a discharge cylinder. The feeder has a receiving port and an output port. The discharge port of the material bin is connected to the receiving port, and the inlet port of the discharge cylinder is connected to the output port. The spreader disc is located at the output port of the discharge cylinder.
12. The spreader as claimed in claim 11, characterized in that, A baffle plate is also provided at the output port of the discharge cylinder, which covers the spreader disc. The lower edge of the baffle plate is set at a height equal to or lower than the circumference of the spreader disc.
13. An unmanned seeding operation device, characterized in that, Includes the spreader disc as described in any one of claims 1 to 9, or the spreader as described in any one of claims 10 to 12.