Spinning disc, spreader and drone

Abstract

The embodiment of the application provides a disc, a spreader and a UAV, and relates to the technical field of spreading. The disc is suitable for the spreader, the disc comprises a mounting body and a plurality of blades, the mounting body has a swing center, and the plurality of blades are arranged on the mounting body. When the disc swings back and forth around the swing center, the blades beat the material to spread the material. Since the disc spreader can throw the material from the left and right swing directions, the spreading width of the material is larger, the spreader only needs to swing the disc to realize the spreading of the material, and two parallel spreading assemblies are not needed, so that the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of seeding technology, and more specifically, to a seeding disc, a seeder, and a drone. Background Technology

[0002] Agricultural drones are developing rapidly, and their payload capacity is constantly increasing, enabling them to be applied to more and more aspects of field agricultural production. In the field management of field crops, drones are not only used for spraying liquid pesticides, but also for sowing seeds, powders, solid fertilizers and other granules.

[0003] To enable drones to spread seeds, powders, solid fertilizers, and other granules, a spreading device is mounted on the drone. To reduce the number of flight operations, the spreading component needs to be set to have a large spreading width. To achieve a large spreading width, existing spreading devices have two spreading components side by side. However, spreading with two spreading components side by side has the disadvantage of high cost. Summary of the Invention

[0004] This invention provides a throwing disc, a spreader, and a drone that can throw materials out from a left-right swinging direction, eliminating the need for two side-by-side spreading components and reducing costs.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a spinning disc, the spinning disc comprising:

[0007] The mounting body has a swing center;

[0008] Multiple blades are disposed on the mounting body;

[0009] When the swivel disc oscillates back and forth around the swing center, the blades pat the material to scatter it.

[0010] In an optional embodiment, the swivel disc oscillates back and forth around the oscillation center relative to the oscillation reference plane, and the plurality of blades are arranged circumferentially around the oscillation center and symmetrically distributed relative to the preset reference plane of the mounting body.

[0011] In an optional implementation, the outermost blade among the plurality of blades is the shortest.

[0012] And / or, one of the blades located between the middle blade and the outermost blade is the longest.

[0013] In an optional embodiment, the plurality of blades each have an installation reference point on the mounting body, and the installation reference points are evenly spaced along the circumference.

[0014] In an alternative embodiment, at least one of the plurality of blades near the middle position extends radially, and / or at least one of the outermost blades is offset radially outward from one end away from the swing center toward the other end.

[0015] In an optional implementation, the outermost blade among the plurality of blades is offset outward relative to the radial direction by a first preset angle from one end away from the swing center toward the other end.

[0016] The outermost blade among the plurality of blades is offset outward from the radial direction relative to the other end from the end furthest from the swing center by a second preset angle.

[0017] Wherein, the first preset angle is greater than the second preset angle.

[0018] In an optional implementation, the first preset angle is 40° to 70°, and the second preset angle is 15° to 40°.

[0019] In an optional implementation, five blades are respectively provided on both sides of the preset reference surface.

[0020] In an optional implementation, four blades are respectively provided on both sides of the preset reference plane;

[0021] In an optional implementation, the four blades on one side of the preset reference surface are, in sequence, a first blade, a second blade, a third blade, and a fourth blade, with the fourth blade being the outermost one.

[0022] Wherein, the angle between the length direction of the first blade and the preset reference plane is 15°±2°, the angle between the length direction of the second blade and the preset reference plane is 43°±2°, the angle between the length direction of the third blade and the preset reference plane is 44°±2°, and the angle between the length direction of the fourth blade and the preset reference plane is 15°±2°.

[0023] In an optional implementation, the four blades on one side of the preset reference surface are the fifth blade, the sixth blade, the seventh blade, and the eighth blade, with the eighth blade being the outermost.

[0024] The angle between the length direction of the fifth blade and the preset reference plane is 22°±2°, the angle between the length direction of the sixth blade and the preset reference plane is 32°±2°, the angle between the length direction of the seventh blade and the preset reference plane is 38°±2°, and the angle between the length direction of the eighth blade and the preset reference plane is 14°±2°.

[0025] In an optional embodiment, the swivel disc oscillates back and forth around the oscillation center relative to the oscillation reference plane, and the plurality of blades are arranged circumferentially around the oscillation center and asymmetrically distributed relative to the preset reference plane of the mounting body.

[0026] In an optional embodiment, the plurality of blades each have an installation reference point on the mounting body, and the installation reference points are arranged at non-uniform intervals along the circumference.

[0027] In an optional implementation, four blades are respectively provided on both sides of the preset reference plane.

[0028] In an optional implementation, the four blades on one side of the preset reference surface are the ninth blade, the tenth blade, the eleventh blade, and the twelfth blade, respectively, and the four blades on the other side of the preset reference surface are the thirteenth blade, the fourteenth blade, the fifteenth blade, and the sixteenth blade, respectively, with the twelfth blade and the sixteenth blade being the outermost blades;

[0029] Wherein, the angle between the length direction of the ninth blade and the preset reference plane is 15°±2°, the angle between the length direction of the tenth blade and the preset reference plane is 43°±2°, the angle between the length direction of the eleventh blade and the preset reference plane is 44°±2°, and the angle between the length direction of the twelfth blade and the preset reference plane is 15°±2°.

[0030] The angle between the length direction of the thirteenth blade and the preset reference plane is 22°±2°, the angle between the length direction of the fourteenth blade and the preset reference plane is 32°±2°, the angle between the length direction of the fifteenth blade and the preset reference plane is 38°±2°, and the angle between the length direction of the sixteenth blade and the preset reference plane is 14°±2°.

[0031] In an optional embodiment, the blade is rotatably mounted on the mounting body.

[0032] In an optional embodiment, the mounting body is provided with mounting holes corresponding to each blade and an arc-shaped groove centered on the mounting holes. Each blade is fixed to the mounting body by a first bolt and a second bolt, wherein the first bolt is installed in conjunction with the mounting holes, and the second bolt passes through the arc-shaped groove and can be installed in an adjustable manner along the position of the arc-shaped groove.

[0033] In an alternative embodiment, the plurality of blades are located on the same side surface of the mounting body.

[0034] In an alternative embodiment, the plurality of blades are arranged on one side of the swing center.

[0035] In an optional embodiment, the blade has a length of 26mm ± 2mm and a thickness of 5mm ± 2mm.

[0036] In an optional embodiment, the blade is fixed to the mounting body by bolts;

[0037] Alternatively, the mounting body may be made of plastic and may be fixed to the blade by injection molding.

[0038] Secondly, the present invention provides a seeding device, comprising the seeding disc described in any of the foregoing embodiments.

[0039] Thirdly, the present invention provides a drone including the seeder described in the foregoing embodiments.

[0040] The beneficial effects of the seeding disc, seeder, and drone in the embodiments of the present invention include, for example:

[0041] This invention provides a swivel disc suitable for a spreader. The swivel disc includes a mounting body and multiple blades. The mounting body has a swing center, and the multiple blades are arranged on the mounting body. When the swivel disc oscillates back and forth around the swing center, the blades strike the material to spread it out. Because the swivel disc spreader can throw the material out in a left-right swing direction, the spreader only needs to use the oscillation of the swivel disc to achieve material spreading, eliminating the need for two side-by-side spreading components, thus reducing costs.

[0042] The present invention provides a seeding device that includes the aforementioned spinning disc and has all the functions of the aforementioned spinning disc.

[0043] The present invention provides a drone that includes the aforementioned seeder and has all the functions of the aforementioned seeder. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the seeding device provided in an embodiment of the present invention;

[0046] Figure 2 This is a cross-sectional view of the seeding device provided in an embodiment of the present invention;

[0047] Figure 3An exploded view of the seeder provided in an embodiment of the present invention;

[0048] Figure 4 This is a first schematic diagram of a spinning disc provided in an embodiment of the present invention;

[0049] Figure 5 This is a second schematic diagram of the spinning disc provided in an embodiment of the present invention;

[0050] Figure 6 This is a schematic diagram of a plate-spinning device provided in another embodiment of the present invention.

[0051] Icons: 1000-Spreader; 100-Mounting housing; 110-First housing; 111-Feed inlet; 120-Second housing; 130-Motor mounting housing; 101-Mounting hole; 102-Arc groove; 200-Spinning disc; 210-Mounting body; 220-Blade; 2201-Ninth blade; 2202-Tenth blade; 2203-Eleventh blade; 2204-Twelfth blade; 2205-Thirteenth blade; 2206-Fourteenth blade; 2207-Fifteenth blade; 2208-Sixteenth blade; 300-First motor; 400-Linkage mechanism; 2000-Feeding mechanism; 2100-Auger; 2200-Second motor; Blade length - L; Blade width - W; Swing center - O; Mounting reference point - M; A-Preset reference plane. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments 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, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and 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, and therefore should not be construed as a limitation of this invention.

[0056] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0057] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0058] As mentioned in the background section, agricultural drones are developing rapidly, and their payload capacity is constantly increasing, enabling them to be applied to more and more aspects of field agricultural production. In the field management of field crops, drones are not only used for spraying liquid pesticides, but also for sowing seeds, powders, solid fertilizers, and other granules.

[0059] To enable drones to spread seeds, powders, solid fertilizers, and other granules, a spreading device is mounted on the drone. However, in order to reduce the number of operational flights, the spreading components in the existing technology need to be set to have a large spreading width. In order to achieve a large spreading width, the existing spreading devices are set with two spreading components side by side. However, the method of setting two spreading components side by side (requiring two sets of augers and two motors to drive the spinning disc) has the disadvantage of high cost.

[0060] In view of this, please refer to Figures 1-6 The spinning disc 200, the seeder 1000, and the drone provided in the embodiments of the present invention can solve this problem, and will be described in detail below.

[0061] Please refer to Figures 1-3 An embodiment of the present invention provides a drone, which includes a fuselage (not shown) and a spreading device. The spreading device is installed on the fuselage. Specifically, the spreading device includes a feeding mechanism 2000 and a spreading device 1000, with the feeding mechanism 2000 installed on the spreading device 1000.

[0062] In this embodiment, the drone can be an agricultural drone equipped with a sowing device, which can sow seeds, powders, solid fertilizers, and other granules.

[0063] Furthermore, the drone can be a dual-rotor drone, a single-rotor drone, or a multi-rotor drone, such as a quadcopter drone, a hexacopter drone, an octacopter drone, etc.

[0064] Drones can operate automatically according to preset paths, flight speeds, attitudes, etc., or be manually controlled by operators.

[0065] Specifically, the feeding mechanism 2000 is used to feed material to the spreader 1000, which in turn spreads the material outward. Here, the feeding mechanism 2000 specifically uses a second motor 2200 to drive the auger 2100 to rotate for feeding. The auger 2100 is rotatably mounted on the housing of the feeding mechanism 2000, which is mounted on the fuselage of the UAV for easy carrying of the spreading device during flight.

[0066] The spreader 1000 includes a mounting housing 100, a swivel disc 200, and a drive mechanism for driving the swivel disc 200 to swing. The swivel disc 200 is swivelly mounted on the mounting housing 100, and the drive mechanism is also mounted on the mounting housing 100. The mounting housing 100 is connected to the housing of the feeding mechanism 2000.

[0067] It should be noted that the drive mechanism is connected to the swivel disc 200. For example, the drive mechanism includes a first motor 300 and a linkage mechanism 400 (a crank-rocker mechanism can be selected). The linkage mechanism includes a crank, a connecting rod and a rocker connected in sequence. The linkage mechanism is set in the mounting housing 100.

[0068] The mounting housing 100 includes a first housing 110, a second housing 120, and a motor mounting housing 130 connected in sequence. The first housing 110 and the second housing 120 are fastened together to form a receiving space for the slinger 200. The first motor 300 is mounted in the motor mounting housing. The linkage mechanism is set in the second housing 120. The first housing 110 is connected to the housing of the feeding mechanism 2000. The first housing 110 is provided with a feed inlet 111. The material conveyed by the feeding mechanism 2000 enters the receiving space of the slinger 200 through the feed inlet 111 and can be hit by the blades 220 (described in detail below) of the slinger 200 to achieve the spreading of the material.

[0069] The spreader 1000 can throw the material out from the left and right swing direction. It can be seen that the spreading device can spread the material by simply swinging the spreader disc, without the need to set up two side by side spreading components, thus reducing costs.

[0070] That is, only one set of auger feeding and one drive component are needed to drive the oscillating disc to spread the material, thus reducing costs.

[0071] The materials mentioned here can be understood as granules such as seeds, powders, and solid fertilizers.

[0072] The swivel disc 200 is applicable to the spreader 1000. The swivel disc 200 includes a mounting body 210 and multiple blades 220. The mounting body 210 is swivelly mounted on the second housing 120. The mounting body 210 has a swing center. The multiple blades 220 are arranged on the mounting body 210. When the swivel disc 200 swings back and forth around the swing center, the blades 220 pat the material to spread the material.

[0073] The first motor 300 drives the crank of the linkage mechanism to rotate, which in turn drives the rocker arm of the linkage mechanism to swing. The end of the rocker arm away from the connecting rod is connected to the swing center of the swing plate 200, thereby realizing the reciprocating swing of the swing plate 200.

[0074] Because the 200-type spreader and 1000-type spreader can throw the material out in a left-right swinging direction.

[0075] It should be noted that a material drop space is formed between the multiple blades 220. When the material enters the mounting housing 100 of the spreader 100 from the feeding port of the feeding mechanism 2000, it falls onto the blades 220. During the swinging process of the swivel disc 200, the blades 220 pat the material and throw it out, thereby achieving spreading, and the spreading is relatively uniform and symmetrical.

[0076] Please continue to refer to this. Figure 4 and Figure 5 The swivel disc 200 swings back and forth around the swing center relative to the swing reference surface on both sides, and multiple blades 220 are arranged circumferentially around the swing center and symmetrically distributed relative to the preset reference surface A of the mounting body 210.

[0077] When the swing disc 200 is in a non-swinging state, the preset reference plane A coincides with the swing reference plane. The swing reference plane is a virtual plane passing through the swing center O, which can be considered as the plane located in the middle position when the swing disc 200 swings to both sides with the same amplitude.

[0078] Multiple blades 220 are located on the same side surface of the mounting body 210, which is a plate structure, and the multiple blades 220 are arranged on one side of the swing center.

[0079] Five blades 220 are respectively provided on both sides of the preset reference plane A. Each blade 220 has an installation reference point on the mounting body 210, and the installation reference points are evenly spaced along the circumference.

[0080] Among the plurality of blades 220, at least one blade 220 near the middle position extends radially, and / or at least one outermost blade 220 is offset radially outward from one end away from the swing center toward the other end.

[0081] It should be noted that the outermost blade 220 among the multiple blades 220 is offset radially outward from the end away from the swing center towards the other end. The radial outward offset of the outermost blade 220 allows as much material as possible in the spreader to fall between the blades 220, and the material falling between the blades 220 can be easily thrown outward along the outer blade 220, avoiding material splashing in a direction opposite to the side of the spread material.

[0082] Among the multiple blades 220, at least one blade 220 near the middle position extends radially. For example, the six blades 220 closest to the preset reference surface A on both sides of the preset reference surface A. Here, radial means the direction of the end of the blade 220 away from the swing center toward the swing center.

[0083] In this application, the middle position of the plurality of blades 220 refers to the position close to the preset reference surface A, and the outermost blade 220 refers to the blade 220 farthest from the preset reference surface A.

[0084] In this embodiment, the outermost blade 220 among the plurality of blades 220 is offset outward relative to the radial direction from one end away from the swing center to the other end by a first preset angle, and the next outermost blade 220 among the plurality of blades 220 is offset outward relative to the radial direction from one end away from the swing center to the other end by a second preset angle, wherein the first preset angle is greater than the second preset angle.

[0085] Specifically, the first preset angle β1 is 40° to 70°, and the second preset angle β2 is 15° to 40°. In this embodiment, β1 is 60° and β2 is 19°. Of course, β1 and β2 can be adjusted adaptively according to factors such as the number of blades 220 and the interval angle between each blade 220.

[0086] Setting the outermost blade 220 to be radially outward at a greater angle than the second outermost blade 220 allows the material to be thrown from the middle to the outermost blade 220 during the swinging process. The material is then thrown from the second outermost blade 220 to the outermost blade 220 and then out of the outermost blade 220, which facilitates even spreading of the material.

[0087] In addition, the outermost leaf 220 among the multiple leaves 220 is the shortest, and / or, one of the leaves 220 between the middle leaf 220 and the outermost leaf 220 is the longest.

[0088] Specifically, the outermost blade 220 among the multiple blades 220 is the shortest, which allows the material to be easily thrown outward from the top of the outermost blade 220, preventing the material from continuing to splash along the longer blade 220 in the opposite direction to the spreading direction.

[0089] Among the multiple blades 220, one of the blades 220 located between the middle blade 220 and the outermost blade 220 is the longest. Thus, when the swivel disc 200 swings to a larger amplitude, the longest blade 220 tilts at a larger angle, allowing the material to be guided further outward along the longest blade 220. This guides the material to the blades 220 closer to the outer edge, enabling some material to be spread from the blades 220 closer to the outer edge, thereby preventing the material from concentrating in the middle area and improving the spreading amplitude and uniformity of the material.

[0090] For example, please continue to refer to Figure 4 Along the direction from the middle position away from the middle position, there are the first blade 220, the second blade 220, the third blade 220, the fourth blade 220 and the fifth blade 220 respectively.

[0091] The second blade 220, located in the middle, is the longest, while the first blade 220, located in the very middle, is shorter than the second blade 220. This allows the material in the middle to easily pass through the first blade 220 and reach the second blade 220. Thus, when the swivel disc 200 has a certain swing amplitude, some material can be guided along the second blade 220 to the outer blade 220. The fifth blade 220, located on the outermost side, is the shortest. When material is patted or splashed onto the fifth blade 220, it can be easily thrown outwards along the top of the fifth blade 220.

[0092] In this embodiment, the blade 220 is rotatably mounted on the mounting body 210. Specifically, the mounting body 210 is provided with mounting holes 101 corresponding to each blade 220 and an arc-shaped groove 102 centered on the mounting holes 101. Each blade 220 is fixed to the mounting body 210 by a first bolt and a second bolt. The first bolt is installed in conjunction with the mounting holes 101, and the second bolt passes through the arc-shaped groove 102 and can be installed in an adjustable manner along the position of the arc-shaped groove 102.

[0093] The blade 220 is a plate-shaped structure and is mounted approximately perpendicular to the surface of the mounting body 210. To allow bolt holes to be provided at the bottom of the blade 220, the thickness of the bottom of the blade 220 can be set to be greater than the thickness of the upper blade body 220.

[0094] Multiple blades 220 are evenly spaced circumferentially around their respective mounting holes 101. Each blade 220 uses the mounting hole 101 as a mounting reference point M, and then extends in a predetermined direction based on the mounting reference point M. In this embodiment, in addition to mounting the blades 220 with the first bolt and the mounting hole 101, the blades 220 are also fixed by a second bolt passing through the arc-shaped groove 102. The second bolt can move along the arc-shaped groove 102, thereby facilitating the adjustment of the arrangement direction of the blades 220. As mentioned above, some blades 220 extend radially, while some blades 220 are offset relatively radially outward.

[0095] In some embodiments, the mounting body 210 is made of plastic and is fixed to the blade 220 (which may also be made of metal or other materials) by injection molding, or the mounting body 210 and the blade 220 are fixed together by welding. When fixing the blade 220 to the mounting body 210, it is necessary to first determine the mounting reference point M of each blade 220 on the mounting body 210, and then set the arrangement direction of the blade 220 based on the mounting reference point M.

[0096] In other embodiments, four blades 220 may be provided on both sides of the preset reference surface A. The four blades 220 on one side of the preset reference surface A are, in order, the first blade 220, the second blade 220, the third blade 220 and the fourth blade 220, with the fourth blade 220 being the outermost.

[0097] The angle between the length direction of the first blade 220 and the preset reference plane A is 15°±2°, the angle between the length direction of the second blade 220 and the preset reference plane A is 43°±2°, the angle between the length direction of the third blade 220 and the preset reference plane A is 44°±2°, and the angle between the length direction of the fourth blade 220 and the preset reference plane A is 15°±2°.

[0098] For example, the angle between the length direction of the first blade 220 and the preset reference plane A is 15°, 17°, or 13°; the angle between the length direction of the second blade 220 and the preset reference plane A is 43°, 45°, or 41°; the angle between the length direction of the third blade 220 and the preset reference plane A is 44°, 46°, or 42°; and the angle between the length direction of the fourth blade 220 and the preset reference plane A is 15°, 17°, or 13°.

[0099] Alternatively, the four blades 220 on one side of the preset reference plane A can be designated as the fifth blade 220, the sixth blade 220, the seventh blade 220, and the eighth blade 220, with the eighth blade 220 being the outermost.

[0100] Among them, the angle between the length direction of the fifth blade 220 and the preset reference plane A is 22°±2°, the angle between the length direction of the sixth blade 220 and the preset reference plane A is 32°±2°, the angle between the length direction of the seventh blade 220 and the preset reference plane A is 38°±2°, and the angle between the length direction of the eighth blade 220 and the preset reference plane A is 14°±2°.

[0101] For example, the angle between the length direction of the fifth blade 220 and the preset reference plane A is 22°, 24°, or 20°; the angle between the length direction of the sixth blade 220 and the preset reference plane A is 32°, 34°, or 30°; the angle between the length direction of the seventh blade 220 and the preset reference plane A is 38°, 40°, or 36°; and the angle between the length direction of the eighth blade 220 and the preset reference plane A is 14°, 16°, or 12°.

[0102] For other implementations, please refer to Figure 6 The swivel disc 200 swings back and forth around the swing center relative to the swing reference plane on both sides, and multiple blades 220 are arranged circumferentially around the swing center and are asymmetrically distributed relative to the preset reference plane A of the mounting body 210.

[0103] Furthermore, each of the multiple blades 220 has an installation reference point on the mounting body 210, and the installation reference points are arranged at non-uniform intervals along the circumference.

[0104] Specifically, four blades 220 are respectively provided on both sides of the preset reference surface A. The four blades 220 on one side of the preset reference surface A are the ninth blade 2201, the tenth blade 2202, the eleventh blade 2203 and the twelfth blade 2204. The four blades 220 on the other side of the preset reference surface A are the thirteenth blade 2205, the fourteenth blade 2206, the fifteenth blade 2207 and the sixteenth blade 2208. The twelfth blade 2204 and the sixteenth blade 2208 are both located on the outermost side.

[0105] Among them, the angle between the length direction of the ninth blade 2201 and the preset reference plane A is 15°±2°, the angle between the length direction of the tenth blade 2202 and the preset reference plane A is 43°±2°, the angle between the length direction of the eleventh blade 2203 and the preset reference plane A is 44°±2°, and the angle between the length direction of the twelfth blade 2204 and the preset reference plane A is 15°±2°.

[0106] Among them, the angle between the length direction of the thirteenth blade 2205 and the preset reference plane A is 22°±2°, the angle between the length direction of the fourteenth blade 2206 and the preset reference plane A is 32°±2°, the angle between the length direction of the fifteenth blade 2207 and the preset reference plane A is 38°±2°, and the angle between the length direction of the sixteenth blade 2208 and the preset reference plane A is 14°±2°.

[0107] For example, the angle α1 between the length direction of the ninth blade 2201 and the preset reference plane A is 15°, 17°, or 13°; the angle α2 between the length direction of the tenth blade 2202 and the preset reference plane A is 43°, 45°, or 41°; the angle α3 between the length direction of the eleventh blade 2203 and the preset reference plane A is 44°, 46°, or 42°; and the angle α4 between the length direction of the twelfth blade 2204 and the preset reference plane A is 15°, 17°, or 13°.

[0108] The angle α5 between the length direction of the thirteenth blade 2205 and the preset reference plane A is 22°, 24°, or 20°; the angle α6 between the length direction of the fourteenth blade 2206 and the preset reference plane A is 32°, 34°, or 30°; the angle α7 between the length direction of the fifteenth blade 2207 and the preset reference plane A is 38°, 40°, or 36°; and the angle α8 between the length direction of the sixteenth blade 2208 and the preset reference plane A is 14°, 16°, or 12°.

[0109] In addition, each blade 220 can have the same length and thickness, with the blade 220 having a length of 26mm ± 2mm and a thickness of 5mm ± 2mm.

[0110] The length of blade 220 here can be understood as the distance from one end of blade 220 away from the center of oscillation to the other end of blade 220.

[0111] For example, the blade 220 has a length of 26mm, 28mm, or 24mm, and a thickness of 5mm, 7mm, or 3mm.

[0112] According to the drone provided in this embodiment, the working principle of the drone is as follows:

[0113] During the flight of the drone, the auger 2100 of the feeding mechanism 2000 rotates and feeds material to the spreader 1000. The material enters the mounting housing 100 and comes into contact with the blades 220 of the slinging disc 200. As the first motor 300 drives the linkage mechanism to move, the slinging disc 200 is driven to swing back and forth, thereby throwing out the material and realizing the spreading of the material. The spreader only needs to swing the slinging disc to realize the spreading of the material, without the need to set up two side by side spreading components, thus reducing costs.

[0114] In summary, the present invention provides a swivel disc 200, which is suitable for a spreader 1000. The swivel disc 200 includes a mounting body 210 and multiple blades 220. The mounting body 210 has a swing center, and the multiple blades 220 are disposed on the mounting body 210. When the swivel disc 200 oscillates back and forth around the swing center, the blades 220 tap the material to spread it out. Because the swivel disc 200 is used, the spreader 1000 can throw the material out in a left-right swinging direction.

[0115] The present invention provides a seeder 1000, which includes the aforementioned spinning disc 200. The seeder 1000 has all the functions of the aforementioned spinning disc 200, and has the advantages of simple structure, small size and low cost.

[0116] The present invention provides a drone that includes the aforementioned seeder 1000 and has all the functions of the aforementioned seeder 1000.

[0117] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A type of winch, characterized in that, The throwing disc includes: Mounting body (210), the mounting body (210) having a swing center; Multiple blades (220) are disposed on the mounting body (210), the multiple blades (220) are symmetrically distributed, and at least one of the outermost blades (220) is offset radially outward from one end away from the swing center toward the other end; When the swivel disc oscillates back and forth around the swing center, the blades (220) pat the material to scatter it.

2. The swivel disc according to claim 1, characterized in that, The swivel disc swings back and forth around the swing center relative to the swing reference plane on both sides, and the plurality of blades (220) are arranged circumferentially around the swing center and symmetrically distributed relative to the preset reference plane (A) of the mounting body (210).

3. The swivel disc according to claim 2, characterized in that, The outermost blade (220) among the plurality of blades (220) is the shortest; And / or, one of the blades (220) between the middle blade (220) and the outermost blade (220) of the plurality of blades (220) is the longest.

4. The swivel disc according to claim 2, characterized in that, The plurality of blades (220) each have an installation reference point on the mounting body (210), and the installation reference points are evenly spaced along the circumference.

5. The swivel disc according to claim 2, characterized in that, At least one of the plurality of blades (220) near the middle position extends radially.

6. The swivel disc according to claim 2, characterized in that, The outermost blade (220) among the plurality of blades (220) is offset outward relative to the radial direction by a first preset angle from one end away from the swing center toward the other end; The outermost blade (220) among the plurality of blades (220) is offset outward from the radial direction from one end away from the swing center by a second preset angle. Wherein, the first preset angle is greater than the second preset angle.

7. The swivel disc according to claim 6, characterized in that, The first preset angle is 40° to 70°, and the second preset angle is 15° to 40°.

8. The swivel disc according to claim 2, characterized in that, Five blades (220) are respectively provided on both sides of the preset reference plane (A).

9. The swivel disc according to claim 2, characterized in that, Four blades (220) are respectively provided on both sides of the preset reference surface (A).

10. The spinning disc according to claim 9, characterized in that, The four blades (220) on one side of the preset reference plane (A) are, in order, the first blade (220), the second blade (220), the third blade (220) and the fourth blade (220), with the fourth blade (220) being the outermost. Wherein, the angle between the length direction of the first blade (220) and the preset reference plane (A) is 15°±2°, the angle between the length direction of the second blade (220) and the preset reference plane (A) is 43°±2°, the angle between the length direction of the third blade (220) and the preset reference plane (A) is 44°±2°, and the angle between the length direction of the fourth blade (220) and the preset reference plane (A) is 15°±2°.

11. The swivel disc according to claim 9, characterized in that, The four blades (220) on one side of the preset reference plane (A) are the fifth blade (220), the sixth blade (220), the seventh blade (220) and the eighth blade (220), with the eighth blade (220) being the outermost. The angle between the length direction of the fifth blade (220) and the preset reference plane (A) is 22°±2°, the angle between the length direction of the sixth blade (220) and the preset reference plane (A) is 32°±2°, the angle between the length direction of the seventh blade (220) and the preset reference plane (A) is 38°±2°, and the angle between the length direction of the eighth blade (220) and the preset reference plane (A) is 14°±2°.

12. The swivel disc according to claim 1, characterized in that, The swivel disc swings back and forth around the swing center relative to the swing reference plane on both sides, and the plurality of blades (220) are arranged circumferentially around the swing center and are asymmetrically distributed relative to the preset reference plane (A) of the mounting body (210).

13. The swivel disc according to claim 12, characterized in that, The plurality of blades (220) each have an installation reference point on the mounting body (210), and the installation reference points are arranged non-uniformly along the circumference.

14. The swivel disc according to claim 12, characterized in that, Four blades (220) are respectively provided on both sides of the preset reference surface (A).

15. The swivel disc according to claim 14, characterized in that, The four blades (220) on one side of the preset reference surface (A) are the ninth blade (2201), the tenth blade (2202), the eleventh blade (2203), and the twelfth blade (2204), respectively. The four blades (220) on the other side of the preset reference surface (A) are the thirteenth blade (2205), the fourteenth blade (2206), the fifteenth blade (2207), and the sixteenth blade (2208), respectively. The twelfth blade (2204) and the sixteenth blade (2208) are both located on the outermost side. Wherein, the angle between the length direction of the ninth blade (2201) and the preset reference plane (A) is 15°±2°, the angle between the length direction of the tenth blade (2202) and the preset reference plane (A) is 43°±2°, the angle between the length direction of the eleventh blade (2203) and the preset reference plane (A) is 44°±2°, and the angle between the length direction of the twelfth blade (2204) and the preset reference plane (A) is 15°±2°; The angle between the length direction of the thirteenth blade (2205) and the preset reference plane (A) is 22°±2°, the angle between the length direction of the fourteenth blade (2206) and the preset reference plane (A) is 32°±2°, the angle between the length direction of the fifteenth blade (2207) and the preset reference plane (A) is 38°±2°, and the angle between the length direction of the sixteenth blade (2208) and the preset reference plane (A) is 14°±2°.

16. The spinning disc according to claim 1, characterized in that, The blade (220) is rotatably mounted on the mounting body (210).

17. The swivel disc according to claim 16, characterized in that, The mounting body (210) is provided with mounting holes (101) corresponding to each blade (220) and an arc groove (102) centered on the mounting holes (101). Each blade (220) is fixed to the mounting body (210) by a first bolt and a second bolt, wherein the first bolt is installed in conjunction with the mounting holes (101), and the second bolt passes through the arc groove (102) and can be installed in an adjustable position along the arc groove (102).

18. The swivel disc according to claim 1, characterized in that, The plurality of blades (220) are located on the same side surface of the mounting body (210).

19. The swivel disc according to claim 1, characterized in that, The plurality of blades (220) are arranged on one side of the swing center.

20. The swivel disc according to claim 1, characterized in that, The blade (220) has a length of 26mm ± 2mm and a thickness of 5mm ± 2mm.

21. The swivel disc according to claim 1, characterized in that, The blade (220) is fixed to the mounting body (210) by bolts; Alternatively, the mounting body (210) is made of plastic and is fixed to the blade (220) by injection molding.

22. A seeding device (1000), characterized in that, Includes the swivel disc as described in any one of claims 1-21.

23. An unmanned aerial vehicle (UAV), characterized in that, Includes the spreader (1000) as described in claim 22.

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