Throwing disc, spreading mechanism, spreading device and unmanned apparatus

Abstract

A throwing disc (300), which is suitable for a spreading mechanism (1000) and comprises: a disc body (400) and a plurality of blades (500), wherein the disc body (400) has a swing center, the plurality of blades (500) are arranged on the disc body (400), and when the throwing disc (300) swings back and forth around the swing center, the blades (500) beat materials so as to spread the materials. The spreading mechanism (1000) with the throwing disc can throw out materials in a left-right swinging direction; therefore, the spreading range of materials is larger, and the spreading mechanism (1000) can spread materials only through swinging of the throwing disc (300), without the need to provide two side-by-side spreading assemblies, thereby reducing costs. Further provided are a spreading mechanism (1000) comprising the throwing disc (300), a spreading device comprising the spreading mechanism (1000), and an unmanned apparatus comprising the spreading mechanism or the spreading device.

Description

Spreaders, spreading mechanisms, spreading devices and unmanned equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application No. 202311465830.7 filed on November 3, 2023, entitled “Spinner, Spreader and UAV”, and the Chinese patent application No. 202311465692.2 filed on November 3, 2023, entitled “Spreading Mechanism, Spreading Device and Unmanned Equipment”, and the Chinese patent application No. 202310802257.8 filed on June 30, 2023, entitled “Spinner and Spreader for Spreader”, and the Chinese patent application No. 202310802257.8 filed on June 30, 2023, entitled “Spinner and Spreader for Spreader”, and the Chinese patent application No. 202310802257.8 filed on June 30, 2023, entitled “Spinner and Spreader for Spreader”, and the Chinese patent application No. 202310802257.8 filed on June 30, 2023, entitled “Spinner and Spreader for Spreader” The present invention claims priority from the Chinese patent application No. 202310802613.6 filed on June 30, 2023, entitled “Disc spreader, spreading device and drone”, as well as the Chinese patent application No. 202321713356.0 filed on June 30, 2023, entitled “Disc spreader and spreader for spreader”, and the Chinese patent application No. 202321714304.5 filed on June 30, 2023, entitled “Disc spreader, spreading device and drone”, all of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of sowing technology, and in particular to a spinning disc, a sowing mechanism, a sowing device and unmanned equipment. Background Art

[0004] Agricultural drones are developing rapidly, and their payload is constantly increasing. They are being applied to more and more large-scale agricultural production links. In the field management of field crops, drones are not only used to spray liquid pesticides, but also to spread particles such as seeds, powders, and solid fertilizers.

[0005] In order to enable drones to spread seeds, powders, solid fertilizers and other particles, a spreading device is installed on the drone. In order to reduce the number of operation flights, the spreading component needs to be set to have a larger spreading width. In order to have a larger spreading width, the existing spreading device is provided with two side-by-side spreading components. However, the sowing method of providing two side-by-side spreading components has the disadvantage of high cost.

[0006] Summary of the Invention

[0007] The present application provides a spinning disc, a spreading mechanism, a spreading device and unmanned equipment, which can throw materials out in the left and right swinging directions without the need to set up two side-by-side spreading components, thereby reducing costs.

[0008] In a first aspect, an embodiment of the present application provides a spinning disc, comprising: a disc body having a swing center; a plurality of blades, the plurality of blades being arranged on the disc body; wherein, when the spinning disc swings back and forth around the swing center, the blades beat the material to spread the material out.

[0009] The present invention provides a spinning disc suitable for use in a spreading mechanism. The spinning disc comprises a disc body and a plurality of blades. The disc body has a swinging center, and the plurality of blades are disposed on the disc body. As the spinning disc reciprocates about the swinging center, the blades strike the material, spreading it. Because the spinning disc spreading mechanism can swing the material in a left-right swinging direction, the spreading mechanism can achieve material spreading solely through the swinging disc, eliminating the need for two side-by-side spreading assemblies and reducing costs.

[0010] According to the aforementioned embodiment of the first aspect of the present application, the swing disc swings back and forth around the swing center relative to the swing reference plane, and the multiple blades are arranged circumferentially around the swing center and symmetrically distributed relative to the preset reference plane of the disc body.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the outermost blade among the plurality of blades is the shortest.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, one of the plurality of blades located between the middlemost blade and the outermost blade is the longest.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of blades respectively have mounting reference points on the disk body, and the mounting reference points are evenly spaced along the circumferential direction.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, five blades are respectively provided on both sides of the preset reference plane.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, four blades are respectively provided on both sides of the preset reference plane.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the four blades on one side of the preset reference plane are, in sequence, the first blade, the second blade, the third blade and the fourth blade, and the fourth blade is at the outermost side; 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°.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the four blades on one side of the preset reference plane are respectively the fifth blade, the sixth blade, the seventh blade and the eighth blade, and the eighth blade is at the outermost side; wherein, 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°.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the swing disc swings back and forth around the swing center relative to the swing reference plane, and the multiple blades are arranged circumferentially around the swing center and asymmetrically distributed relative to the preset reference plane of the disc body.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of blades respectively have mounting reference points on the disk body, and the mounting reference points are arranged at uneven intervals along the circumferential direction.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, four blades are respectively provided on both sides of the preset reference plane.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the four blades on one side of the preset reference plane are respectively the ninth blade, the tenth blade, the eleventh blade and the twelfth blade, and the four blades on the other side of the preset reference plane are respectively the thirteenth blade, the fourteenth blade, the fifteenth blade and the sixteenth blade, and the twelfth blade and the sixteenth blade are both at the outermost sides; wherein the angle between the length direction of the ninth blade and the preset reference plane is 15°±2°, and the angle between the length direction of the tenth blade and the preset reference plane is 43°±2°, so 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°; wherein, 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°.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the angle between at least a portion of the blades distributed on one side of the preset reference plane and the preset reference plane is greater than the angle between the blades symmetrically distributed on the other side of the preset reference plane and the preset reference plane.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the two blades respectively located on both sides of the preset reference plane and both distributed close to the preset reference plane have the same angle with the preset reference plane; the angles between the remaining blades distributed on one side of the preset reference plane and the preset reference plane are all greater than the angles between the remaining blades distributed on the other side of the preset reference plane and the preset reference plane.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, on one side of the preset reference plane, starting from the second blade closest to the preset reference plane toward a direction away from the preset reference plane, the angle between each blade and the preset reference plane gradually decreases.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of blades connected to the disk body include a seventeenth blade, an eighteenth blade, a nineteenth blade, and a twentieth blade, the seventeenth blade and the eighteenth blade are distributed on the left side of the preset reference plane, and the seventeenth blade is closer to the preset reference plane than the eighteenth blade; the nineteenth blade and the twentieth blade are distributed on the right side of the preset reference plane, and the nineteenth blade is closer to the preset reference plane than the twentieth blade; the angle between the seventeenth blade and the preset reference plane is equal to the angle between the nineteenth blade and the preset reference plane; the angle between the eighteenth blade and the preset reference plane is greater than the angle between the twentieth blade and the preset reference plane; the angle between the seventeenth blade and the preset reference plane and the angle between the nineteenth blade and the preset reference plane are any value between 20° and 25°; the angle between the eighteenth blade and the preset reference plane is any value between 45° and 50°; and the angle between the twentieth blade and the preset reference plane is any value between 30° and 35°.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of blades further include a twenty-first blade and a twenty-second blade, the twenty-first blade being located between the seventeenth blade and the eighteenth blade, and the twenty-second blade being located between the nineteenth blade and the twentieth blade; wherein the angle between the twenty-first blade and the preset reference plane is greater than the angle between the twenty-second blade and the preset reference plane; the angle between the twenty-first blade and the preset reference plane is greater than the angle between the eighteenth blade and the preset reference plane, and the angle between the eighteenth blade and the preset reference plane is greater than the angle between the seventeenth blade and the preset reference plane; the angle between the twenty-second blade and the preset reference plane is greater than the angle between the twentieth blade and the preset reference plane, and the angle between the twentieth blade and the preset reference plane is greater than the angle between the nineteenth blade and the preset reference plane; the angle between the twenty-first blade and the preset reference plane is an arbitrary value of 53°-57°; the angle between the twenty-second blade and the preset reference plane is an arbitrary value of 44°-48°.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the multiple blades further include a twenty-third blade and a twenty-fourth blade, the twenty-third blade being located on the side of the eighteenth blade away from the seventeenth blade, and the twenty-fourth blade being located on the side of the twentieth blade away from the seventeenth blade; the angle between the twenty-third blade and the preset reference plane is greater than the angle between the twenty-fourth blade and the preset reference plane; the angle between the twenty-third blade and the preset reference plane is smaller than the angle between the seventeenth blade and the preset reference plane, and the angle between the seventeenth blade and the preset reference plane is smaller than the angle between the eighteenth blade and the preset reference plane; the angle between the twenty-fourth blade and the preset reference plane is smaller than the angle between the nineteenth blade and the preset reference plane, and the angle between the nineteenth blade and the preset reference plane is smaller than the angle between the twentieth blade and the preset reference plane; the angle between the twenty-third blade and the preset reference plane is an arbitrary value of 5°-8°; the angle between the twenty-fourth blade and the preset reference plane is an arbitrary value of 4°-6°.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the blades are rotatably mounted on the disc.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the disk body is provided with a mounting hole corresponding to each of the blades and an arc-shaped groove with the mounting hole as the center, and each of the blades is fixed to the disk body by a first bolt and a second bolt, wherein the first bolt is installed in cooperation with the mounting hole, and the second bolt passes through the arc-shaped groove and can be installed adjustably along the position of the arc-shaped groove.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of blades are located on the same side surface of the disk.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of blades are arranged on one side of the swing center.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the length of the blade is 26 mm ± 2 mm, and the thickness of the blade is 5 mm ± 2 mm.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, the blades are fixed to the disc body by bolts; or, the disc body is made of plastic, and the disc body is fixed to the blades by injection molding.

[0034] In a second aspect, an embodiment of the present application provides a spreading mechanism, which includes a spinning disc according to any of the aforementioned embodiments of the first aspect of the present application.

[0035] According to any of the aforementioned embodiments of the second aspect of the present application, the spreading mechanism also includes a drive assembly; the disc body includes a connecting portion and a dialing portion, and the connecting portion is in transmission connection with the drive assembly to drive the fling disc to rotate around the first axis under the drive of the drive assembly; the blade is arranged on the dialing portion and is used to dial the material; wherein the dialing portion is arc-shaped, forming a specific angle around the connecting portion, and the specific angle is less than 360°.

[0036] According to any of the aforementioned embodiments of the second aspect of the present application, the specific angle is configured to be smaller than 180°.

[0037] According to any of the aforementioned embodiments of the second aspect of the present application, the disc body is provided with a hollow area, and the hollow area is used to allow the material to pass through.

[0038] According to any of the aforementioned embodiments of the second aspect of the present application, the disc body has a first side and a second side distributed in opposite directions, and the blades are distributed on the first side; the hollow area runs through the first side and the second side, and is used to allow the material to move from the first side to the second side and fall freely from the second side.

[0039] According to any of the aforementioned embodiments of the second aspect of the present application, the spreading mechanism further includes a conveying assembly, and the driving assembly is arranged on the conveying assembly; the conveying assembly is provided with a discharge port, and the conveying assembly is used to discharge the material from the discharge port; wherein the discharge port is opposite to the first side and is distributed at intervals.

[0040] According to any of the aforementioned embodiments of the second aspect of the present application, the disc body is configured to swing back and forth around the first axis in a vertical plane, and the blade can move to below the discharge port as the disc body swings.

[0041] According to any of the aforementioned embodiments of the second aspect of the present application, the connecting portion is provided with the hollow area.

[0042] According to any of the aforementioned embodiments of the second aspect of the present application, the connecting portion includes an assembly part and at least two connecting parts, the first end of the connecting part is connected to the dialing portion, the second ends of at least two of the connecting parts are connected to the assembly part, and the assembly part is transmission-connected to the drive assembly; at least two of the connecting parts are spaced apart around the first axis to form the hollow area.

[0043] According to any of the aforementioned implementations of the second aspect of the present application, the center of the dialing portion coincides with the first axis.

[0044] According to any of the aforementioned embodiments of the second aspect of the present application, the drive assembly is configured to drive the disk to swing back and forth around the first axis.

[0045] According to any of the aforementioned embodiments of the second aspect of the present application, the drive assembly includes a first motor and a crank assembly, and the first motor is transmission-connected to the disk body via the crank assembly.

[0046] According to any of the aforementioned embodiments of the second aspect of the present application, the spinning tray includes a plurality of blades, and the plurality of blades are all connected to the dialing portion and are sequentially spaced along the length extension direction of the dialing portion.

[0047] According to any of the aforementioned embodiments of the second aspect of the present application, the drive assembly is used to drive the disk body to swing back and forth around the first axis on both sides of the second axis, and the second axis is perpendicular to the first axis; the dialing portion includes a first arc segment and a second arc segment connected to each other, and the connection between the first arc segment and the second arc segment is the center line of the disk body, and when the disk body is stationary, the center line coincides with the second axis; the first arc segment and the second arc segment are both connected to a plurality of the blades; wherein, the angle between the blades connected to at least part of the first arc segment and the center line is greater than the angle between the blades connected to at least part of the second arc segment and the center line.

[0048] According to any of the aforementioned embodiments of the second aspect of the present application, the spreading mechanism is used for a drone to perform spreading operations.

[0049] In a third aspect, an embodiment of the present application provides a spreading device, which includes a storage mechanism and a spreading mechanism according to any of the aforementioned embodiments of the second aspect of the present application, wherein the spreading mechanism is arranged in the storage mechanism, and the storage mechanism is used to store materials and transport the materials to the spreading mechanism for spreading.

[0050] In a fourth aspect, an embodiment of the present application provides an unmanned device, which includes a spreading mechanism according to any of the aforementioned embodiments of the second aspect of the present application, or a spreading device according to any of the aforementioned embodiments of the third aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0052] FIG1 is a schematic diagram of a spreading device provided in an embodiment of the present application;

[0053] FIG2 is a cross-sectional view of a spreading device provided in an embodiment of the present application;

[0054] FIG3 is an exploded view of a spreading mechanism provided in an embodiment of the present application;

[0055] FIG4 is a first schematic diagram of a spinning tray provided in an embodiment of the present application;

[0056] FIG5 is a second schematic diagram of a spinning tray provided in an embodiment of the present application;

[0057] FIG6 is a schematic diagram of a spinning tray provided in another embodiment of the present application;

[0058] FIG7 is a schematic structural diagram of the spreading mechanism in the embodiment of the present application at a first viewing angle;

[0059] FIG8 is a schematic structural diagram of the spreading mechanism in the embodiment of the present application at a second viewing angle;

[0060] FIG9 is a schematic structural diagram of a spinning tray in an embodiment of the present application from a first viewing angle;

[0061] FIG10 is a schematic diagram of a partial structure of a spinning disc and a drive assembly according to an embodiment of the present application;

[0062] FIG11 is a second schematic diagram of the partial structure of the spinning disc and the drive assembly in an embodiment of the present application;

[0063] FIG12 is a schematic structural diagram of the spinning tray in a second viewing angle according to an embodiment of the present application;

[0064] FIG13 is a schematic structural diagram of a spinning disk in another embodiment of the present application;

[0065] FIG14 is a structural diagram of a spinning disk according to another embodiment of the present application;

[0066] FIG15 is a second structural diagram of a spinning disk in another embodiment of the present application.

[0067] Icons: 1000 - spreading mechanism; 800 - mounting housing; 810 - first housing; 811 - feeding port; 820 - second housing; 830 - motor mounting housing; 801 - mounting hole; 802 - arc groove; 300 - spinner; 400 - disc; 500 - blade; 5001 - ninth blade; 5002 - tenth blade; 5003 - eleventh blade; 5004 - twelfth blade; 5005 - thirteenth blade; 5006 - fourteenth blade; 5007 - fifteenth blade; 5008 - sixteenth blade; 210 - first motor; 900 - connecting rod mechanism; 2000 - feeding mechanism; 2100 - auger; 2200 - second motor; blade length - L; blade width - W; swing center - O; installation reference point - M; A - preset reference plane;

[0068] 100 - housing; 101 - inlet; 102 - outlet; 200 - drive assembly; 210 - first motor; 220 - crank assembly; 221 - turntable; 222 - bump; 223 - track; 224 - chute; 225 - first connecting rod; 226 - second connecting rod; 227 - third connecting rod; 300 - spinner; 400 - disk body; 401 - hollow area; 410 - connection part; 411 - assembly part; 412 - connection part ;420- dialing part; 421- first arc segment; 422- second arc segment; 500- blade; 501- seventeenth blade; 502- eighteenth blade; 503- nineteenth blade; 504- twentieth blade; 505- twenty-first blade; 506- twenty-second blade; 507- twenty-third blade; 508- twenty-fourth blade; L1- first axis; L2- second axis; N1- first direction; N2- second direction. DETAILED DESCRIPTION

[0069] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0070] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0071] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0072] In the description of this application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.

[0073] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0074] It should be noted that, in the absence of conflict, the features in the embodiments of this application can be combined with each other.

[0075] Among related technologies, agricultural drones have developed rapidly, and their payload has been continuously improved, allowing them to be applied to more and more large-scale agricultural production links. In the field management of field crops, unmanned equipment is not only used to spray liquid pesticides, but also to spread particles such as seeds, powders, and solid fertilizers.

[0076] In order to realize the sowing of seeds, powders, solid fertilizers and other particles by unmanned equipment, a sowing device is installed on the unmanned equipment. However, in the prior art, in order to reduce the number of operation flights, the sowing component needs to be set to have a larger sowing width. In order to have a larger sowing width, the existing sowing device is provided with two side-by-side sowing components. The sowing method of providing two side-by-side sowing components (requiring two sets of augers and two motors to drive the spinning disc) has the disadvantage of high cost.

[0077] In view of this, please refer to Figures 1 to 6. The spinning disc 300, the spreading mechanism 1000 and the unmanned equipment provided in the embodiments of the present application can solve this problem, which will be described in detail below.

[0078] Please refer to Figures 1 to 3. An unmanned device is provided in an embodiment of the present application. The unmanned device includes a fuselage (not shown) and a sowing device, which is installed on the fuselage. Specifically, the sowing device includes a feeding mechanism 2000 and a sowing mechanism 1000, and the feeding mechanism 2000 is installed on the sowing mechanism 1000.

[0079] In this embodiment, the unmanned equipment may be an agricultural drone having a sowing device that can sow particles such as seeds, powders, and solid fertilizers.

[0080] The drone can be a twin-rotor drone, a single-rotor drone, or a multi-rotor drone, such as a quad-rotor drone, a six-rotor drone, an eight-rotor drone, etc.

[0081] The drone can operate automatically according to a preset path, flight speed, attitude, etc., or it can be manually controlled by the operator.

[0082] Specifically, the feeding mechanism 2000 is used to feed material to the spreading mechanism 1000, which is used to spread the material outward. Here, the feeding mechanism 2000 specifically uses a second motor 2200 to drive an auger 2100 to rotate. The auger 2100 is rotatably mounted to the housing of the feeding mechanism 2000, which is mounted on the fuselage of the unmanned vehicle to facilitate flight with the spreading device.

[0083] The spreading mechanism 1000 includes a mounting shell 800, a spinner 300 and a driving mechanism for driving the spinner 300 to swing. The spinner 300 is swingably mounted on the mounting shell 800, and the driving mechanism is also mounted on the mounting shell 800. In addition, the mounting shell 800 is connected to the shell of the feeding mechanism 2000.

[0084] It should be noted that the driving mechanism is connected to the spinner 300 , for example, the driving mechanism includes a first motor 210 and a connecting rod mechanism 900 (a crank rocker mechanism can be selected), the connecting rod mechanism includes a crank, a connecting rod and a rocker connected in sequence, and the connecting rod mechanism is arranged in the mounting shell 800 .

[0085] The mounting shell 800 includes a first shell 810, a second shell 820 and a motor mounting shell 830 which are connected in sequence. The first shell 810 and the second shell 820 are snapped together to form a accommodating space for accommodating the swing disc 300. The first motor 210 is installed in the motor mounting shell, and the connecting rod mechanism is arranged in the second shell 820. The first shell 810 is connected to the shell of the feeding mechanism 2000, and a feed port 111 is provided on the first shell 810. The material transported by the feeding mechanism 2000 enters the accommodating space for accommodating the swing disc 300 through the feed port 111, and can be beaten by the blades 500 (described in detail below) of the swing disc 300 to achieve the spreading of the material.

[0086] The spreading mechanism 1000 can throw the material in the left and right swinging directions. It can be seen that the spreading device can spread the material only by swinging the swing plate, without setting up two side-by-side spreading components, thus reducing costs.

[0087] That is, only one set of auger feeding and one driving member are needed to drive the swinging disc to swing, so as to achieve the spreading of materials and reduce costs.

[0088] The materials here can be understood as particles such as seeds, powders, solid fertilizers, etc.

[0089] The spinning disc 300 is suitable for the spreading mechanism 1000. The spinning disc 300 includes a disc body 400 and multiple blades 500. The disc body 400 is swingably mounted on the second shell 820. The disc body 400 has a swing center. The multiple blades 500 are arranged on the disc body 400. When the spinning disc 300 swings back and forth around the swing center, the blades 500 beat the material to spread the material.

[0090] The first motor 210 drives the crank of the connecting rod mechanism to rotate, thereby driving the rocker of the connecting rod mechanism to swing. The end of the rocker away from the connecting rod is connected to the swing center of the spinning disc 300, thereby realizing the reciprocating swing of the spinning disc 300.

[0091] Because the spreading mechanism 1000 of the disk 300 can throw the material out in the direction of left and right swinging.

[0092] It should be noted that a material drop space is formed between the multiple blades 500. When the material enters the mounting shell 800 of the spreading mechanism 1000 from the feeding port of the feeding mechanism 2000, it falls onto the blades 500. During the swinging process of the spinner 300, the blades 500 beat the material and throw the material out, thereby achieving spreading, and the spreading is relatively uniform and symmetrical.

[0093] 4 and 5 , the spinner 300 reciprocates around the swing center relative to the swing reference plane. The plurality of blades 500 are circumferentially spaced around the swing center and symmetrically distributed relative to the preset reference plane A of the disc body 400 .

[0094] When the spinning disk 300 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 spinning disk 300 swings to both sides with the same amplitude.

[0095] The plurality of blades 500 are located on the same side surface of the disc body 400 . The disc body 400 is a plate structure, and the plurality of blades 500 are arranged on one side of the swing center.

[0096] Five blades 500 are respectively provided on both sides of the preset reference plane A. The plurality of blades 500 respectively have mounting reference points on the disc body 400, and the mounting reference points are evenly spaced along the circumferential direction.

[0097] At least one blade 500 near the middle of the plurality of blades 500 extends radially, and / or at least one outermost blade 500 is offset radially outward from one end away from the center of oscillation toward the other end. In some embodiments, at least one blade 500 near the middle of the plurality of blades 500 extends radially. In some embodiments, at least one outermost blade 500 is offset radially outward from one end away from the center of oscillation toward the other end.

[0098] In some embodiments, among the multiple blades 500, at least one blade 500 near the middle position extends radially, for example, the six blades 500 closest to the preset reference plane A on both sides of the preset reference plane A. Here, the radial direction refers to the direction from the end of the blade 500 away from the swing center toward the swing center.

[0099] The middle position of the plurality of blades 500 described in this application refers to a position close to the preset reference plane A, and the outermost blade 500 refers to the blade 500 farthest from the preset reference plane A.

[0100] In this embodiment, the outermost blade 500 among the multiple blades 500 is offset radially outward by a first preset angle from one end away from the swing center toward the other end, and the second outermost blade 500 among the multiple blades 500 is offset radially outward by a second preset angle from one end away from the swing center toward the other end, wherein the first preset angle is greater than the second preset angle.

[0101] 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 adaptively adjusted based on factors such as the number of blades 500 and the spacing angles between blades 500.

[0102] In some embodiments, the outermost blade 500 among the plurality of blades 500 is the shortest, and / or one of the blades 500 between the middle blade 500 and the outermost blade 500 among the plurality of blades 500 is the longest.

[0103] Specifically, the outermost blade 500 among the multiple blades 500 is the shortest, which allows the material to be easily thrown out from the top of the outermost blade 500, preventing the material from splashing along the longer blades 500 in the direction opposite to the spreading direction.

[0104] For example, please continue to refer to FIG. 4 , along the direction from the middle position to the direction away from the middle position, there are respectively the first blade 500 , the second blade 500 , the third blade 500 , the fourth blade 500 and the fifth blade 500 .

[0105] In this embodiment, the blade 500 can be rotatably mounted on the disk body 400. Specifically, the disk body 400 is provided with a mounting hole 801 corresponding to each blade 500 and an arc groove 802 with the mounting hole 801 as the center. Each blade 500 is fixed to the disk body 400 by a first bolt and a second bolt, wherein the first bolt is installed in cooperation with the mounting hole 801, and the second bolt passes through the arc groove 802 and can be installed in an adjustable position along the arc groove 802.

[0106] The blade 500 is a plate-like structure and is installed approximately perpendicular to the surface of the disk 400. In order to allow bolt holes to be set at the bottom of the blade 500, the thickness of the bottom of the blade 500 can be set to be greater than the thickness of the upper blade 500 body.

[0107] The mounting holes 801 corresponding to the plurality of blades 500 are evenly spaced along the circumference. Each blade 500 uses the mounting hole 801 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 the blades 500 being mounted via a first bolt through the mounting hole 801, a second bolt is also secured via an arcuate slot 802. The second bolt can be moved along the arcuate slot 802, thereby facilitating adjustment of the arrangement direction of the blades 500. As described above, some blades 500 extend radially, while others are offset radially outward.

[0108] In some embodiments, the disk body 400 is made of plastic and is fixed to the blades 500 (the blades 500 may also be made of metal or other materials) by injection molding, or the disk body 400 and the blades 500 are fixed together by welding. When fixing the blades 500 to the disk body 400, it is necessary to first determine the installation reference point M of each blade 500 on the disk body 400, and then set the arrangement direction of the blades 500 based on the installation reference point M.

[0109] In other embodiments, four blades 500 may also be provided on both sides of the preset reference plane A. The four blades 500 on one side of the preset reference plane A are respectively the first blade 500, the second blade 500, the third blade 500 and the fourth blade 500, and the fourth blade 500 is at the outermost side.

[0110] The angle between the length direction of the first blade 500 and the preset reference plane A is 15°±2°, the angle between the length direction of the second blade 500 and the preset reference plane A is 43°±2°, the angle between the length direction of the third blade 500 and the preset reference plane A is 44°±2°, and the angle between the length direction of the fourth blade 500 and the preset reference plane A is 15°±2°. Herein, "15°±2°" refers to the angle range from (15° minus 2°) to (15° plus 2°), that is, "15°±2°" is equivalent to 13° to 17°. The remaining "43°±2°", "44°±2°", and so on are similar.

[0111] For example, the angle between the length direction of the first blade 500 and the preset reference plane A is 15°, 17° or 13°, the angle between the length direction of the second blade 500 and the preset reference plane A is 43°, 45° or 41°, the angle between the length direction of the third blade 500 and the preset reference plane A is 44°, 46° or 42°, and the angle between the length direction of the fourth blade 500 and the preset reference plane A is 15°, 17° or 13°.

[0112] Alternatively, the four blades 500 on one side of the preset reference plane A may be the fifth blade 500 , the sixth blade 500 , the seventh blade 500 and the eighth blade 500 , with the eighth blade 500 being located at the outermost side.

[0113] The angle between the length direction of the fifth blade 500 and the preset reference plane A is 22°±2°, the angle between the length direction of the sixth blade 500 and the preset reference plane A is 32°±2°, the angle between the length direction of the seventh blade 500 and the preset reference plane A is 38°±2°, and the angle between the length direction of the eighth blade 500 and the preset reference plane A is 14°±2°.

[0114] For example, the angle between the length direction of the fifth blade 500 and the preset reference plane A is 22°, 24°, or 20°, the angle between the length direction of the sixth blade 500 and the preset reference plane A is 32°, 34°, or 30°, the angle between the length direction of the seventh blade 500 and the preset reference plane A is 38°, 40°, or 36°, and the angle between the length direction of the eighth blade 500 and the preset reference plane A is 14°, 16°, or 12°.

[0115] In other embodiments, referring to FIG. 6 , the spinner 300 reciprocates around the swing center relative to the swing reference plane, and a plurality of blades 500 are arranged circumferentially around the swing center and asymmetrically distributed relative to the preset reference plane A of the disc body 400 .

[0116] The plurality of blades 500 also have mounting reference points on the disk body 400 , respectively. The mounting reference points are arranged at uneven intervals along the circumferential direction.

[0117] Specifically, four blades 500 are provided on both sides of the preset reference plane A. The four blades 500 on one side of the preset reference plane A are respectively a ninth blade 5001, a tenth blade 5002, an eleventh blade 5003, and a twelfth blade 5004. The four blades 500 on the other side of the preset reference plane A are respectively a thirteenth blade 5005, a fourteenth blade 5006, a fifteenth blade 5007, and a sixteenth blade 5008. The twelfth blade 5004 and the sixteenth blade 5008 are both located at the outermost sides.

[0118] The included angle between the length direction of the ninth blade 5001 and the preset reference plane A is 15°±2°, the included angle between the length direction of the tenth blade 5002 and the preset reference plane A is 43°±2°, the included angle between the length direction of the eleventh blade 5003 and the preset reference plane A is 44°±2°, and the included angle between the length direction of the twelfth blade 5004 and the preset reference plane A is 15°±2°;

[0119] The angle between the length direction of the thirteenth blade 5005 and the preset reference plane A is 22°±2°, the angle between the length direction of the fourteenth blade 5006 and the preset reference plane A is 32°±2°, the angle between the length direction of the fifteenth blade 5007 and the preset reference plane A is 38°±2°, and the angle between the length direction of the sixteenth blade 5008 and the preset reference plane A is 14°±2°.

[0120] For example, the angle α1 between the length direction of the ninth blade 5001 and the preset reference plane A is 15° or 17° or 13°, the angle α2 between the length direction of the tenth blade 5002 and the preset reference plane A is 43° or 45° or 41°, the angle α3 between the length direction of the eleventh blade 5003 and the preset reference plane A is 44° or 46° or 42°, and the angle α4 between the length direction of the twelfth blade 5004 and the preset reference plane A is 15° or 17° or 13°.

[0121] The angle α5 between the length direction of the thirteenth blade 5005 and the preset reference plane A is 22° or 24° or 20°, the angle α6 between the length direction of the fourteenth blade 5006 and the preset reference plane A is 32° or 34° or 30°, the angle α7 between the length direction of the fifteenth blade 5007 and the preset reference plane A is 38° or 40° or 36°, and the angle α8 between the length direction of the sixteenth blade 5008 and the preset reference plane A is 14° or 16° or 12°.

[0122] In some embodiments, the length and thickness of each blade 500 may be the same, the length of the blade 500 is 26 mm ± 2 mm, and the thickness of the blade 500 is 5 mm ± 2 mm.

[0123] The length of the blade 500 herein may be understood as the distance from one end of the blade 500 away from the swing center to the other end of the blade 500 .

[0124] For example, the length of the blade 500 is 26 mm, 28 mm, or 24 mm, and the thickness of the blade 500 is 5 mm, 7 mm, or 3 mm.

[0125] According to an unmanned device provided in this embodiment, the unmanned device is, for example, a drone. The working principle of the drone is as follows:

[0126] During the flight of the drone, the auger 2100 of the feeding mechanism 2000 rotates and feeds the material to the spreading mechanism 1000. The material enters the mounting shell 800 and contacts the blades 500 of the spinner 300. Since the first motor 210 drives the connecting rod mechanism to move, the spinner 300 is driven to swing back and forth, thereby throwing out the material and spreading the material. The spreading mechanism only needs to spread the material through the swing of the spinner, and there is no need to set up two side-by-side spreading components, which reduces costs.

[0127] In summary, the present invention provides a spinning disc 300 suitable for use in a spreading mechanism 1000. The spinning disc 300 includes a disc body 400 and a plurality of blades 500. The disc body 400 has a swing center, and the plurality of blades 500 are disposed on the disc body 400. When the spinning disc 300 reciprocates about the swing center, the blades 500 strike the material to spread it. Due to the spinning disc 300, the spreading mechanism 1000 can throw the material in the direction of the left and right swing.

[0128] The embodiment of the present application provides a spreading mechanism 1000 , which includes the aforementioned spinning disc 300 . The spreading mechanism 1000 has all the functions of the aforementioned spinning disc 300 , and has the advantages of simple structure, small size, and low cost.

[0129] An embodiment of the present application provides an unmanned device, such as a drone, which includes the above-mentioned spreading mechanism 1000 and has all the functions of the above-mentioned spreading mechanism 1000.

[0130] Please refer to Figure 7. An embodiment of the present application also provides an unmanned device, which may refer to a drone, an unmanned vehicle, etc., and is not specifically limited here.

[0131] The unmanned equipment includes an unmanned equipment body and a spreading device. The spreading device is arranged on the unmanned equipment body, so that the spreading device is driven to move by the unmanned equipment body, so that the spreading device can spread materials while moving. Taking a drone as an example, the unmanned equipment body can refer to an unmanned aerial vehicle.

[0132] The spreading device includes a material storage mechanism and a spreading mechanism 1000 (as shown in FIG7 ). The spreading mechanism 1000 is arranged in the material storage mechanism. The material storage mechanism is used to store materials and transport the materials to the spreading mechanism 1000 for spreading.

[0133] Optionally, the storage mechanism includes a material box for storing materials; the material box is provided with a discharge port, and the material in the material box can fall out of the discharge port under the action of its own weight and move to the sowing mechanism 1000 for sowing. Of course, in other embodiments, the storage mechanism also includes a discharge assembly assembled with the material box, and the discharge assembly is provided at the discharge port for discharging the material in the material box from the discharge port; wherein the discharge assembly includes but is not limited to an auger assembly, a roller assembly, etc.

[0134] Optionally, referring to Figures 7 and 8, the spreading mechanism 1000 includes a conveying assembly (not shown), a driving assembly 200 and a spinning disc 300, the driving assembly 200 is arranged on the conveying assembly; the conveying assembly is provided with a discharge port 102, the conveying assembly is used to output the material from the discharge port 102, the driving assembly 200 is matched with the spinning disc 300 to drive the spinning disc 300 to rotate around the first axis L1; specifically, the conveying assembly includes a shell 100 and an auger, the shell 100 is connected to the material box, and the upper side of the shell 100 is provided with a feed port 101, and the feed port 101 is connected to the discharge port. The two shells 100 are connected to each other, and a discharge port 102 is provided at the end of the shell 100; the auger is rotatably arranged in the shell 100, for conveying the material entering the shell 100 in the direction of the discharge port 102, and making the material fall out from the discharge port 102; the driving assembly 200 is arranged in the shell 100, and is transmission-connected with the spinner 300, for driving the spinner 300 to rotate, and the spinner 300 is relatively distributed to the discharge port 102; when the spinner 300 rotates around the first axis L1 driven by the driving assembly 200, the spinner 300 can push out the material falling out of the discharge port 102.

[0135] Furthermore, the housing 100 is provided with a second motor connected to the auger transmission.

[0136] Referring to FIG9 , in this embodiment, a spinning tray 300 includes a tray body 400 and blades 500. The tray body 400 includes a connecting portion 410 and a rotating portion 420. The connecting portion 410 is transmission-connected to the drive assembly 200 to rotate the spinning tray 300 about a first axis L1 under the drive of the drive assembly 200. The blades 500 are disposed on the rotating portion 420 and are used to rotate the material. The rotating portion 420 is arc-shaped, surrounding the connecting portion 410 at a specific angle, the specific angle being less than 360°. This arrangement provides higher structural efficiency during reciprocating swinging of the spinning tray 300. Since only a portion of the blades 500 of the spinning tray 300 can rotate the material during reciprocating swinging, the rotating portion 420 does not need to form a complete circle. This allows the volume of the tray body 400 to be reduced, thereby reducing the weight of the entire spinning tray 300, alleviating the load on the drive assembly 200, and reducing the cost of manufacturing the spinning tray 300, thereby improving structural efficiency.

[0137] Furthermore, the specific angle is configured to be less than 180°, for example, 179°, 175°, 165°, 160°, etc., which can be determined according to the set swing amplitude. Such a configuration can fully reduce the volume and weight of the spinner 300, thereby reducing the load of the drive assembly 200 and reducing the production cost of the spinner 300, while ensuring reliable material spinning.

[0138] Of course, in other embodiments, the specific angle may also be greater than or equal to 180°, for example, 180°, 200°, 240°, etc., which is not specifically limited here.

[0139] In one embodiment, the connecting portion 410 includes a rotation center, and the specific angle formed by the dialing portion 420 around the connecting portion 410 may refer to the angle formed by the lines connecting the two ends of the dialing portion 420 and the rotation center, and the angle formed by the two lines.

[0140] Referring further to Figures 7 and 9 , the disc body 400 has a first side and a second side disposed opposite each other. The blades 500 are located on the first side, and the drive assembly 200 is in driving connection with the second side. The discharge port 102 is located opposite the first side and spaced apart. This arrangement ensures that material discharged from the discharge port 102 is reliably moved by the blades 500 connected to the first side of the disc body 400.

[0141] In some embodiments, the drive assembly 200 is configured to drive the disc body 400 to perform unidirectional rotational motion. In this way, the spread material is not symmetrically distributed on the left and right sides of the vertical center line of the spinner 300, that is, the material spread is unevenly distributed.

[0142] Please refer to Figure 8. In this embodiment, the drive assembly 200 is configured to drive the disc body 400 to swing back and forth around the first axis L1 along the first direction N1 and the second direction N2. In this way, on the one hand, it can avoid the blade 500 rotating with the disc body 400 to the top of the discharge port 102 and being unable to shake the material, resulting in uneven sowing problem in which the material falls directly without being shaken. On the other hand, the reciprocating swinging blade 500 can make the material be shaken out more evenly, that is, the reciprocating swinging disc 300 can shake the material evenly to the left and right sides of the vertical center line of the disc 300, thereby achieving symmetrical sowing width and uniformity of the material within the sowing width.

[0143] 10 and 11 , the driving assembly 200 includes a first motor 210 and a crank assembly 220. The first motor 210 is in transmission connection with the disk body 400 via the crank assembly 220. The structure of the crank assembly 220 can be selected as needed. For example: in some embodiments, the crank assembly 220 includes a turntable 221, a protrusion 222 and a track 223. The turntable 221 is rotatably disposed on the shell 100 and is transmission-connected to the output shaft of the first motor 210. The protrusion 222 is connected to the turntable 221 and is spaced apart from the rotation center of the turntable 221; the protrusion 222 is slidably inserted into the slide groove 224 of the track 223, and the end of the track 223 is connected to the disk body 400, and the end is pivotally connected to the shell 100; when the first motor 210 drives the turntable 221 to rotate unidirectionally, the protrusion 222 rotates synchronously with the turntable 221, and the protrusion 222 reciprocates in the slide groove 224 of the track 223 and abuts against the groove wall of the slide groove 224 to drive the track 223 to swing back and forth around its end pivotally connected to the shell 100, thereby driving the disk body 400 to swing back and forth. Or for example: in some other embodiments, the crank assembly 220 includes a first connecting rod 225, a second connecting rod 226 and a third connecting rod 227, and the first end of the first connecting rod 225 is rotatably disposed on the housing 100 and is transmission-connected to the output shaft of the first motor 210; the second end of the first connecting rod 225 is pivotally connected to the first end of the second connecting rod 226, and the second end of the second connecting rod 226 is pivotally connected to the first end of the third connecting rod 227, and the second end of the third connecting rod 227 is rotatably disposed on the housing 100 and is connected to the spinner 300; when the output shaft of the first motor 210 rotates in one direction, it drives the first connecting rod 225 to rotate, and drives the second connecting rod 226 to swing through the first connecting rod 225, thereby utilizing the second connecting rod 226 to drive the third connecting rod 227 and the spinner 300 to swing back and forth.

[0144] Referring to FIG9 , in this embodiment, the disc body 400 is provided with a hollow area 401 for allowing material to pass through. This allows a portion of the material delivered from the discharge port 102 to fall directly through the hollow area 401, thereby preventing a large amount of material from directly impacting the spinner disc 300, causing the spinner disc 300 to be overloaded and causing the first motor 210 that drives the spinner disc 300 to swing to overcurrent protection. Furthermore, due to the reciprocating swinging nature of the spinner disc 300, the blades 500 can disperse the material to the left and right sides of the vertical centerline of the disc body 400, resulting in less material being spread in the middle. The hollow area 401 on the disc body 400 allows the material to be directly dispersed without passing through the blades 500, thereby achieving a more uniform and good overall spreading effect. Furthermore, the weight of the spinner disc 300 can be further reduced, reducing the load on the first motor 210.

[0145] Furthermore, the hollow area 401 extends through the first and second sides, allowing the material to move from the first side to the second side and freely fall from the second side. This arrangement can prevent the freely falling material from being knocked away by the blades 500, thereby ensuring that the middle part of the spinner 300 has freely fallen material and ensuring uniform material spreading.

[0146] Of course, in other embodiments, the disk body 400 may not be provided with the hollow area 401 .

[0147] Furthermore, the disc body 400 is configured to swing back and forth around the first axis L1 in a vertical plane, and the blades 500 can move below the discharge port 102 as the disc body 400 swings. This arrangement ensures that the blades 500 can reliably spread the material, thereby ensuring the reliability of material spreading.

[0148] 9 , in this embodiment, the connecting portion 410 is provided with a hollow area 401 ; this configuration can avoid interference between materials that need to fall freely from the hollow area 401 and materials that need to be spread by the blades 500 , thereby ensuring reliability and uniformity of spreading.

[0149] Of course, in other embodiments, the hollow area 401 may extend to the dial portion 420 ; in this way, the lowest point of the hollow area 401 can be made lower, so that materials can pass through the hollow area 401 more easily.

[0150] Furthermore, the connecting portion 410 includes an assembly member 411 and at least two connecting members 412. The first ends of the connecting members 412 are connected to the dial portion 420, and the second ends of the at least two connecting members 412 are both connected to the assembly member 411. The assembly member 411 is in driving connection with the drive assembly 200. The at least two connecting members 412 are spaced apart around the first axis L1 to form a hollow area 401. This arrangement allows the size and number of the connecting members 412 to be adjusted to adjust the size of the hollow area 401 and the structural strength of the dial body 400, thereby enhancing flexibility.

[0151] In this embodiment, the connecting portion 410 includes three connecting members 412, and the three connecting members 412 are spaced apart around the first axis L1 to form two hollow areas 401; such a configuration not only increases the range in which the material can pass through the disc body 400 to ensure the smooth falling of the material in the middle of the spinner 300, but also improves the structural strength of the disc body 400.

[0152] Of course, in other embodiments, the number of connectors 412 may be two, four, etc., which is not specifically limited here.

[0153] The connection method between the connector 412, the assembly part 411 and the dialing part 420, and the connection method between the blade 500 and the dialing part 420 can be selected as needed, such as: integral molding, welding, etc., and is not specifically limited here.

[0154] Referring to Figure 9 , in this embodiment, the center of the spinning portion 420 coincides with the first axis L1, and the spinner 300 includes a plurality of blades 500. The blades 500 are connected to the spinning portion 420 and are spaced apart along the length of the spinning portion 420, such that the blades 500 are spaced apart along a predetermined arc. This arrangement allows the blades 500 to more reliably spin the material as the spinning portion 420 reciprocates about the first axis L1, ensuring uniform material distribution.

[0155] Furthermore, the drive assembly 200 is used to drive the disk body 400 to swing back and forth around the first axis L1 on both sides of the second axis L2, and the second axis L2 is perpendicular to the first axis L1; wherein, when the disk body 400 is stationary, the center line of the disk body 400 coincides with the second axis L2. In this embodiment, the center line of the disk body 400 coincides with the preset reference plane A of the disk body 400. A plurality of blades 500 are distributed on both sides of the center line, and the angle between at least part of the blades 500 distributed on one side of the center line and the center line is greater than the angle between at least part of the blades 500 distributed on the other side of the center line and the center line; specifically, the dialing portion 420 includes a first arc segment 421 and a second arc segment 422 connected to each other, and the connection between the first arc segment 421 and the second arc segment 422 is the center line of the disk body 400; the first arc segment 421 and the second arc segment 422 are both connected to a plurality of blades 500; wherein , the angle between at least part of the blades 500 connected to the first arc segment 421 and the center line is greater than the angle between at least part of the blades 500 connected to the second arc segment 422 and the center line; wherein, the first arc segment 421 is the section distributed on the left side in Figure 12, and the second arc segment 422 is the section distributed on the right side in Figure 12, that is, the angle between at least one of the multiple blades 500 distributed on the left side in Figure 12 and the center line is greater than the angle between at least one of the multiple blades 500 distributed on the right side in Figure 12 and the center line.

[0156] Since the spinning tray 300 is driven by the crank assembly 220 to swing back and forth (such as swinging in the left and right directions in FIG12 ), the reciprocating swing of the spinning tray 300 is a simple harmonic motion. Under the quick return characteristic of the crank assembly 220, the speed of the spinning tray 300 when swinging back and forth is different. As shown in FIG12 , the speed of the spinning tray 300 swinging to the left is slower than the speed of the spinning tray 300 swinging to the right. The angle between at least one of the multiple blades 500 distributed on the left side of FIG12 and the center line is configured to be greater than the angle between at least one of the multiple blades 500 distributed on the right side of FIG12 and the center line. When the spinning tray 300 swings to the right, the swing of the spinning tray 300 When the blades 500 distributed on the left side of the center line of the disc body 400 and having a larger angle with the center line pass below the discharge port 102 to hit the material, the angle between the direction in which the material flies out and the horizontal direction is larger, so the material can fly closer. When the throwing disc 300 swings to the left, the swinging speed of the throwing disc 300 is slower. When the blades 500 distributed on the right side of the center line of the disc body 400 and having a smaller angle with the center line pass below the discharge port 102 to hit the material, the angle between the direction in which the material flies out and the horizontal direction is smaller, so the material flies farther. In this way, it can be ensured that the reciprocating swinging throwing disc 300 can more evenly distribute the material to both sides of the throwing disc 300.

[0157] Furthermore, the angle between the width extension direction of at least a portion of the blades 500 on one side of the centerline and the centerline is greater than the angle between the width extension direction of at least a portion of the blades 500 on the other side of the centerline. This arrangement ensures that the spinner 300, which reciprocates under the action of the crank assembly 220, can achieve uniform spreading on both sides by adjusting the angle between the width extension directions of the blades 500 on both sides of the centerline.

[0158] It should be noted that the length extension direction of the blade 500 refers to the direction perpendicular to the surface of the disk body 400 , and the width extension direction of the blade 500 may refer to the extension direction of the blade 500 projected on the surface of the disk body 400 .

[0159] Optionally, the angle between at least part of the blades 500 distributed on one side of the center line and the center line is greater than the angle between the blades 500 symmetrically distributed on the other side of the center line and the center line; that is, the angle between at least part of the blades 500 distributed on one side of the preset reference plane and the preset reference plane is greater than the angle between the blades 500 symmetrically distributed on the other side of the preset reference plane and the preset reference plane; that is, the multiple blades 500 on the left and right sides of the center line of the disk body 400 are symmetrically distributed along the center line, wherein the angles between some of the left and right symmetrical blades 500 are different, and the angle between some of the blades 500 on the left and the center line is greater than the angle between the blades 500 symmetrically distributed on the right and the center line. In this way, when the spinning disc 300 swings to the right, the spinning speed of the spinning disc 300 is faster, and the blades 500 distributed on the left side of the center line of the disc body 400 and with a larger angle to the center line hit the material when passing under the discharge port 102, causing the material to fly closer. When the spinning disc 300 swings to the left, the spinning speed of the spinning disc 300 is slower, and the blades 500 distributed on the right side of the center line of the disc body 400 and with a smaller angle to the center line hit the material when passing under the discharge port 102, causing the material to fly farther, thereby ensuring the uniformity of the material sown left and right by the reciprocating spinning disc 300.

[0160] Optionally, the two blades 500 located on both sides of the center line and close to the center line have the same angle with the center line; the angles between the remaining blades 500 distributed on one side of the center line and the center line are greater than the angles between the remaining blades 500 distributed on the other side of the center line and the center line; that is, the two blades 500 located on both sides of the preset reference plane and close to the preset reference plane have the same angle with the preset reference plane; the remaining blades 500 distributed on one side of the preset reference plane have a greater angle with the preset reference plane. The angles of the reference plane are all greater than the angles of the remaining blades 500 located on the other side of the predetermined reference plane with the predetermined reference plane; that is, the angle of the blade 500 located to the left of and near the centerline of the disk body 400 with the centerline is equal to the angle of the blade 500 located to the right of and near the centerline of the disk body 400 with the centerline, and the angles of the remaining blades 500 located to the left of the centerline of the disk body 400 with the centerline are all greater than the angles of the blades 500 symmetrically distributed to the right of the centerline of the disk body 400. This arrangement enables both blades 500 located near the centerline to spread material to a position close to the second axis L2, thereby ensuring that material is spread not only to the left and right sides of the spinner 300 and farther away from the spinner 300, but also to a position closer to the spinner 300, thereby ensuring uniform material spreading.

[0161] Optionally, on one side of the centerline, starting from the blade 500 second closest to the centerline and moving away from the centerline, the angle between each blade 500 and the centerline gradually decreases; that is, on one side of the predetermined reference plane, starting from the blade 500 second closest to the predetermined reference plane and moving away from the predetermined reference plane, the angle between each blade 500 and the predetermined reference plane gradually decreases. That is, on the right side of the centerline, starting from the blade 500 second closest to the centerline and moving away from the centerline, the angle between each blade 500 and the centerline gradually decreases. Similarly, on the left side of the centerline, starting from the blade 500 second closest to the centerline and moving away from the centerline, the angle between each blade 500 and the centerline gradually decreases. This arrangement ensures that during the reciprocating swing of the spinning disc 300, the blades 500 with larger angles push the material closer, while the blades 500 with smaller angles push the material farther away, thereby ensuring uniform spreading.

[0162] Optionally, on one side of the centerline, the blade 500 farthest from the centerline has the smallest angle with the centerline, while the blade 500 closest to the centerline has the second smallest angle with the centerline. That is, on the right side of the centerline, the blade 500 farthest from the centerline among the multiple blades 500 disposed on the right side has the smallest angle with the centerline, while the blade 500 closest to the centerline has the second smallest angle with the centerline. Similarly, on the left side of the centerline, the blade 500 farthest from the centerline among the multiple blades 500 disposed on the left side has the smallest angle with the centerline, while the blade 500 closest to the centerline has the second smallest angle with the centerline. This arrangement ensures that during the reciprocating swing of the spinning disc 300, the blades 500 with large angles will move the material closer, while the blades 500 with small angles will move the material farther away. Furthermore, by alternating the blades 500 with large angles and the blades 500 with small angles, the material is alternately moved closer and farther away, thereby ensuring uniform spreading.

[0163] Optionally, on one side of the centerline, the intersection points of the extension lines of the width extension direction of each blade 500 and the centerline do not overlap. That is, the intersection points of the extension lines of the width extension direction of each blade 500 and the centerline are spaced apart along the length extension direction of the centerline. Of course, in other embodiments, the intersection points of the extension lines of the width extension direction of each blade 500 and the centerline overlap. For example, the intersection points of the extension lines of the width extension direction of each blade 500 and the centerline overlap with the swing center of the disk body 400.

[0164] 12 , in this embodiment, the plurality of blades 500 connected to the disk body 400 include a seventeenth blade 501, an eighteenth blade 502, a nineteenth blade 503, and a twentieth blade 504. The seventeenth blade 501 and the eighteenth blade 502 are located on the left side of the center line, and the seventeenth blade 501 is closer to the center line than the eighteenth blade 502. The nineteenth blade 503 and the twentieth blade 504 are located on the right side of the center line, and the nineteenth blade 503 is closer to the center line than the twentieth blade 504. The angle between the seventeenth blade 501 and the center line is equal to the angle between the nineteenth blade 503 and the center line, and the angle between the seventeenth blade 501 and the center line and the angle between the nineteenth blade 503 and the center line are both 23°. The angle between the eighteenth blade 502 and the center line is greater than the angle between the twentieth blade 504 and the center line, and the angle between the eighteenth blade 502 and the center line is 47.5°, and the angle between the twentieth blade 504 and the center line is 33°.

[0165] Of course, in other embodiments, the angle between the seventeenth blade 501 and the center line, and the angle between the nineteenth blade 503 and the center line are any values ​​from 20° to 25°, for example: 20°, 21°, 22°, 24° or 25°, etc.; the angle between the eighteenth blade 502 and the center line is any value from 45° to 50°, for example: 45°, 46°, 47°, 48°, 49°, 50°, etc.; the angle between the twentieth blade 504 and the center line is any value from 30° to 35°, for example: 30°, 31°, 32°, 33°, 34°, 35°, etc.

[0166] The above structure can also be expressed as: the multiple blades 500 connected to the disk body 400 include the seventeenth blade 501, the eighteenth blade 502, the nineteenth blade 503 and the twentieth blade 504, the seventeenth blade 501 and the eighteenth blade 502 are distributed on the left side of the preset reference plane, and the seventeenth blade 501 is closer to the preset reference plane than the eighteenth blade 502; the nineteenth blade 503 and the twentieth blade 504 are distributed on the right side of the preset reference plane, and the nineteenth blade 503 is closer to the center line than the twentieth blade 504; the angle between the seventeenth blade 501 and the preset reference plane is equal to the angle between the nineteenth blade 503 and the preset reference plane, and the angle between the seventeenth blade 501 and the preset reference plane and the angle between the nineteenth blade 503 and the preset reference plane are 23°; the angle between the eighteenth blade 502 and the preset reference plane is greater than the angle between the twentieth blade 504 and the preset reference plane. The angle between the seventeenth blade 501 and the preset reference plane, and the angle between the nineteenth blade 503 and the preset reference plane are arbitrarily set at 20°-25°; the angle between the eighteenth blade 502 and the preset reference plane is arbitrarily set at 45°-50°; the angle between the twentieth blade 504 and the preset reference plane is arbitrarily set at 30°-35°.

[0167] Furthermore, the multiple blades 500 also include a twenty-first blade 505 and a twenty-second blade 506, the twenty-first blade 505 is located between the seventeenth blade 501 and the eighteenth blade 502, and the twenty-second blade 506 is located between the nineteenth blade 503 and the twentieth blade 504; wherein, the angle between the twenty-first blade 505 and the center line is greater than the angle between the twenty-second blade 506 and the center line; the angle between the twenty-first blade 505 and the center line is greater than the angle between the eighteenth blade 502 and the center line, and the angle between the eighteenth blade 502 and the center line is greater than the angle between the seventeenth blade 501 and the center line; the angle between the twenty-second blade 506 and the center line is greater than the angle between the twentieth blade 504 and the center line, and the angle between the twentieth blade 504 and the center line is greater than the angle between the nineteenth blade 503 and the center line; wherein, the angle between the twenty-first blade 505 and the center line is 54.5°, and the angle between the twenty-second blade 506 and the center line is 46.5°.

[0168] Of course, in other embodiments, the angle between the twenty-first blade 505 and the center line is any value from 53° to 57°, for example: 53°, 54°, 55°, 56°, 57°, etc.; the angle between the twenty-second blade 506 and the center line is any value from 44° to 48°, for example: 44°, 45°, 46°, 47°, 48°, etc.

[0169] The above structure can also be expressed as: the multiple blades 500 also include a twenty-first blade 505 and a twenty-second blade 506, the twenty-first blade 505 is located between the seventeenth blade 501 and the eighteenth blade 502, and the twenty-second blade 506 is located between the nineteenth blade 503 and the twentieth blade 504; wherein, the angle between the twenty-first blade 505 and the preset reference plane is greater than the angle between the twenty-second blade 506 and the preset reference plane; the angle between the twenty-first blade 505 and the preset reference plane is greater than the angle between the eighteenth blade 502 and the preset reference plane, and the angle between the eighteenth blade 502 and the preset reference plane is greater than the angle between the seventeenth blade 501 and the preset reference plane; the angle between the twenty-second blade 506 and the preset reference plane is greater than the angle between the twentieth blade 504 and the preset reference plane, and the angle between the twentieth blade 504 and the preset reference plane is greater than the angle between the nineteenth blade 503 and the preset reference plane. The included angle between the twenty-first blade 505 and the preset reference plane is arbitrarily set at 53°-57°; the included angle between the twenty-second blade 506 and the preset reference plane is arbitrarily set at 44°-48°.

[0170] Furthermore, the multiple blades 500 also include a twenty-third blade 507 and a twenty-fourth blade 508, the twenty-third blade 507 is located on the side of the eighteenth blade 502 away from the seventeenth blade 501, and the twenty-fourth blade 508 is located on the side of the twentieth blade 504 away from the seventeenth blade 501; the angle between the twenty-third blade 507 and the center line is greater than the angle between the twenty-fourth blade 508 and the center line; the angle between the twenty-third blade 507 and the center line is less than the angle between the seventeenth blade 501 and the center line, and the angle between the seventeenth blade 501 and the center line is less than the angle between the eighteenth blade 502 and the center line; the angle between the twenty-fourth blade 508 and the center line is less than the angle between the nineteenth blade 503 and the center line, and the angle between the nineteenth blade 503 and the center line is less than the angle between the twentieth blade 504 and the center line; wherein, the angle between the twenty-third blade 507 and the center line is 6°, and the angle between the twenty-fourth blade 508 and the center line is 5.5°.

[0171] Of course, in other embodiments, the angle between the twenty-third blade 507 and the center line is any value of 5°-8°, for example: 5°, 6°, 7°, 8°, etc., and the angle between the twenty-fourth blade 508 and the center line is any value of 4°-6°, for example: 4°, 5°, 6°, etc.

[0172] The above structure can also be expressed as: the multiple blades 500 also include a twenty-third blade 507 and a twenty-fourth blade 508, the twenty-third blade 507 is located on the side of the eighteenth blade 502 away from the seventeenth blade 501, and the twenty-fourth blade 508 is located on the side of the twentieth blade 504 away from the seventeenth blade 501; the angle between the twenty-third blade 507 and the preset reference plane is greater than the angle between the twenty-fourth blade 508 and the preset reference plane; the angle between the twenty-third blade 507 and the preset reference plane is smaller than the angle between the seventeenth blade 501 and the preset reference plane, and the angle between the seventeenth blade 501 and the preset reference plane is smaller than the angle between the eighteenth blade 502 and the preset reference plane; the angle between the twenty-fourth blade 508 and the preset reference plane is smaller than the angle between the nineteenth blade 503 and the preset reference plane, and the angle between the nineteenth blade 503 and the preset reference plane is smaller than the angle between the twentieth blade 504 and the preset reference plane. The included angle between the twenty-third blade 507 and the preset reference plane is an arbitrary value of 5°-8°; the included angle between the twenty-fourth blade 508 and the preset reference plane is an arbitrary value of 4°-6°.

[0173] Referring to Figure 12 , the blade 500 includes two oppositely disposed dialing surfaces for dialing materials, namely a first dialing surface and a second dialing surface. When the disk 400 swings in a first direction N1 about the first axis L1, the first dialing surface is used to dial materials. When the disk 400 swings in a second direction N2 about the first axis L1, the second dialing surface is used to dial materials. The first direction N1 and the second direction N2 are opposite. Specifically, the first direction N1 can point leftward, and the second direction N2 can point rightward. In this embodiment, the first and second dialing surfaces are both planar and parallel.

[0174] Referring to Figure 13 , in another embodiment, the width of the first dialing surface extends at an acute angle to the width of the second dialing surface. One end of the first dialing surface and one end of the second dialing surface are both aligned with the outer edge of the dialing portion 420, while the other ends of the first dialing surface and the other ends of the second dialing surface extend toward the swing center of the disc body 400. Furthermore, the angle between the first and second dialing surfaces gradually increases from the end closest to the outer edge of the dialing portion 420 to the end closest to the swing center of the disc body 400. This allows for flexible adjustment of the angle between the two dialing surfaces of the same blade 500 to achieve a more uniform material dialing effect.

[0175] Furthermore, the angle between the line connecting the swing center of the blade 500 and the disk body 400 and the first dialing surface is the first angle; the angle between the line connecting the swing center of the blade 500 and the disk body 400 and the second dialing surface is the second angle; along the first direction N1, the angles of the first angles of the plurality of blades 500 gradually decrease, and along the second direction N2, the angles of the second angles of the plurality of blades 500 gradually decrease, for example: the first angle a1 of the twenty-third blade 507 is less than the first angle b1 of the eighteenth blade 502; the first angle c1 of the twenty-first blade 505 is less than the first angle d1 of the seventeenth blade 501 <The first angle e1 of the nineteenth blade 503<The first angle f1 of the twenty-second blade 506<The first angle g1 of the twentieth blade 504<The first angle h1 of the twenty-fourth blade 508, the second angle a2 of the twenty-fourth blade 508<The second angle b2 of the twentieth blade 504<The second angle c2 of the twenty-second blade 506<The second angle d2 of the nineteenth blade 503<The second angle e2 of the seventeenth blade 501<The second angle f2 of the twenty-first blade 505<The second angle g2 of the eighteenth blade 502<The second angle h2 of the twenty-third blade 507. In this way, when the spinning disc 300 swings to the left, the left spreading surface of the blade 500 is the first spreading surface, and the left spreading surface of each blade 500 contacts the material output from the discharge port 102 respectively, and the blade 500 with a small first angle contacts the material first and spreads the material to a distant place, and the blade 500 with a large first angle contacts the material later and spreads the material to a nearby place, so that multiple blades 500 can scatter the material from far to near, thereby increasing the uniformity of sowing; the same is true when the spinning disc 300 swings to the right.

[0176] It should be noted that the line connecting the blade 500 and the swing center of the disk body 400 may refer to a line connecting the middle of one end of the blade 500 close to the dial portion 420 and the swing center of the disk body 400 .

[0177] Referring to Figures 14 and 15 , in another embodiment, at least one of the first and second dialing surfaces of at least a portion of the blades 500 is curved. This means that at least one of the first and second dialing surfaces of at least a portion of the blades 500 is curved. When the blades 500 rotate with the disk 400 to a specific angle, the curved dialing surfaces contact the material at varying angles, thereby displacing the material at multiple angles and improving dialing uniformity.

[0178] Optionally, at least one spreading surface of all blades 500 is a curved surface. For example, all first spreading surfaces of the blades 500 are curved surfaces, or all second spreading surfaces of the blades 500 are curved surfaces, or some blades 500 have curved first spreading surfaces and others have curved second spreading surfaces. This arrangement allows the curved spreading surfaces to spread material at multiple angles, thereby improving material spreading uniformity.

[0179] Alternatively, referring to FIG. 14 , both spreading surfaces of all blades 500 are arcuate, i.e., both the first spreading surface and the second spreading surface of all blades 500 are arcuate. This allows each spreading surface of any blade 500 to have a variety of contact angles with the material, thereby spreading the material at multiple angles, improving the problem of material concentration in certain areas after spreading, and further improving the uniformity of material spreading.

[0180] Alternatively, referring to FIG. 15 , at least one blade 500 near the centerline among the plurality of blades 500 connected to the first arcuate segment 421 has at least one arcuate dialing surface, while at least one blade 500 away from the centerline among the plurality of blades 500 connected to the first arcuate segment 421 has both flat dialing surfaces. At least one blade 500 near the centerline among the plurality of blades 500 connected to the second arcuate segment 422 has at least one arcuate dialing surface, while at least one blade 500 away from the centerline among the plurality of blades 500 connected to the second arcuate segment 422 has both flat dialing surfaces. This arrangement allows the blades 500 located approximately in the middle of the disk body 400 to have at least one arcuate dialing surface. When the middle portion of the disk body 400 reciprocates and sweeps across the concentrated falling material area in the middle of the discharge port 102, the blades 500 with the arcuate dialing surfaces can effectively disperse the densely falling material, thereby improving spreading uniformity.

[0181] Furthermore, among the multiple blades 500 connected to the first arcuate segment 421, at least one curved dialing surface of the blade 500 closest to the centerline and the blade 500 closest to the centerline is formed, while both dialing surfaces of the remaining blades 500 connected to the first arcuate segment 421 are flat. Among the multiple blades 500 connected to the second arcuate segment 422, at least one curved dialing surface of the blade 500 closest to the centerline and the blade 500 closest to the centerline is formed, while both dialing surfaces of the remaining blades 500 connected to the second arcuate segment 422 are flat. This arrangement can more reliably disperse the material in the concentrated area of ​​the discharge port 102.

[0182] Alternatively, referring to FIG. 15 , at least one blade 500 near the centerline among the plurality of blades 500 connected to the first arcuate segment 421 may have both arcuate surfaces on its swivel surfaces; and at least one blade 500 near the centerline among the plurality of blades 500 connected to the second arcuate segment 422 may have both arcuate surfaces on its swivel surfaces. This arrangement allows the blades 500 located approximately in the middle of the disk body 400 to have both arcuate surfaces on their swivel surfaces. When the middle portion of the disk body 400 swings in either the first direction N1 or the second direction N2, sweeping across the concentrated falling material area in the middle of the discharge port 102, the curved swivel surfaces can effectively disperse the densely falling material, thereby improving spreading uniformity.

[0183] Furthermore, the blade 500 closest to the centerline and the blade 500 second closest to the centerline of the multiple blades 500 connected to the first arcuate segment 421 both have curved surfaces for dialing, while the remaining blades 500 connected to the first arcuate segment 421 both have flat surfaces for dialing. The blade 500 closest to the centerline and the blade 500 second closest to the centerline of the multiple blades 500 connected to the second arcuate segment 422 both have curved surfaces for dialing, while the remaining blades 500 connected to the second arcuate segment 422 both have flat surfaces for dialing. This arrangement ensures that material in the concentrated area of ​​falling material can be reliably dispersed when the disc 400 swings in any direction. For example, the 23rd blade 507, the 18th blade 502, the 20th blade 504, and the 24th blade 508 both have flat surfaces for dialing, while the 21st blade 505, the 17th blade 501, the 19th blade 503, and the 22nd blade 506 both have curved surfaces for dialing.

[0184] It should be noted that the spreading device and the spreading mechanism 1000 can also be independently set on a tractor or other equipment for use, and no specific limitation is made here.

[0185] The unmanned equipment of this embodiment can be used to spread granular materials such as seeds and fertilizers. When in use, the materials are stored in the material box, and the materials are allowed to enter the shell 100 and are output from the discharge port 102 through the auger, and then spread out by the reciprocating swinging disc 300.

[0186] In summary, the spinner 300 of the spreading mechanism 1000 of the present application has higher structural efficiency when used for reciprocating swinging with changing direction. Since only the blades 500 at a certain angle of the spinner 300 can swing the material during the reciprocating swing, there is no need for the swinging portion 420 to form a complete circle, which can reduce the volume of the disc body 400 accordingly and reduce the weight of the entire spinner 300, which is beneficial to reducing the load of the driving assembly 200 that drives the spinner 300, and can reduce the cost of preparing the spinner 300 and improve the structural efficiency.

[0187] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A spinning plate, comprising: A disc body, the disc body having a swing center; A plurality of blades, wherein the plurality of blades are arranged on the disk body; When the spinning disc reciprocates around the swing center, the blades beat the materials to spread the materials out.

2. The spinning tray according to claim 1, wherein: The swing disk swings back and forth around the swing center relative to the swing reference plane on both sides, and the plurality of blades are arranged at intervals along the circumferential direction around the swing center and are symmetrically distributed relative to a preset reference plane of the disk body.

3. The spinning tray according to claim 2, wherein: The outermost blade among the plurality of blades has the shortest length.

4. The spinning tray according to claim 2, wherein: One of the plurality of blades between the middle blade and the outermost blade is the longest.

5. The spinning tray according to claim 2, wherein: The plurality of blades respectively have mounting reference points on the disk body, and the mounting reference points are evenly spaced apart in the circumferential direction.

6. The spinning tray according to claim 2, wherein: Five blades are respectively arranged on both sides of the preset reference plane.

7. The spinning tray according to claim 2, wherein: Four blades are respectively arranged on both sides of the preset reference plane.

8. The spinning tray according to claim 7, wherein: The four blades on one side of the preset reference plane are a first blade, a second blade, a third blade and a fourth blade in sequence, and the fourth blade is located at the outermost side; Among them, 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°.

9. The spinning tray according to claim 7, wherein: The four blades on one side of the preset reference plane are respectively a fifth blade, a sixth blade, a seventh blade and an eighth blade, and the eighth blade is at the outermost side; Among them, 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°.

10. The spinning tray according to claim 1, wherein: The swing disk swings back and forth around the swing center relative to the swing reference plane toward both sides, and the plurality of blades are arranged at intervals along the circumferential direction around the swing center and are asymmetrically distributed relative to a preset reference plane of the disk body.

11. The spinning tray according to claim 10, wherein: The plurality of blades respectively have mounting reference points on the disk body, and the mounting reference points are arranged at uneven intervals along the circumferential direction.

12. The spinning tray according to claim 10, wherein: Four blades are respectively arranged on both sides of the preset reference plane.

13. The spinning tray according to claim 12, wherein: The four blades on one side of the preset reference plane are respectively the ninth blade, the tenth blade, the eleventh blade and the twelfth blade, and the four blades on the other side of the preset reference plane are respectively the thirteenth blade, the fourteenth blade, the fifteenth blade and the sixteenth blade, and the twelfth blade and the sixteenth blade are both at the outermost sides; The included angle between the length direction of the ninth blade and the preset reference plane is 15°±2°, the included angle between the length direction of the tenth blade and the preset reference plane is 43°±2°, the included angle between the length direction of the eleventh blade and the preset reference plane is 44°±2°, and the included angle between the length direction of the twelfth blade and the preset reference plane is 15°±2°. Among them, 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°.

14. The spinning tray according to claim 10, wherein: The included angle between at least part of the blades distributed on one side of the preset reference plane and the preset reference plane is greater than the included angle between the blades symmetrically distributed on the other side of the preset reference plane and the preset reference plane.

15. The spinning tray according to claim 10, wherein: The two blades respectively located on both sides of the preset reference plane and both distributed close to the preset reference plane have the same angle with the preset reference plane; the angles between the remaining blades distributed on one side of the preset reference plane and the preset reference plane are greater than the angles between the remaining blades distributed on the other side of the preset reference plane and the preset reference plane.

16. The spinning tray according to claim 15, wherein On one side of the preset reference plane, starting from the second blade close to the preset reference plane toward a direction away from the preset reference plane, the angle between each blade and the preset reference plane gradually decreases.

17. The spinning tray according to claim 10, wherein: The plurality of blades connected to the disc body include a seventeenth blade, an eighteenth blade, a nineteenth blade and a twentieth blade, the seventeenth blade and the eighteenth blade are distributed on the left side of the preset reference plane, and the seventeenth blade is closer to the preset reference plane than the eighteenth blade; The nineteenth blade and the twentieth blade are distributed on the right side of the preset reference plane, and the nineteenth blade is closer to the preset reference plane than the twentieth blade; The included angle between the seventeenth blade and the preset reference plane is equal to the included angle between the nineteenth blade and the preset reference plane; the included angle between the eighteenth blade and the preset reference plane is greater than the included angle between the twentieth blade and the preset reference plane; The angle between the seventeenth blade and the preset reference plane, and the angle between the nineteenth blade and the preset reference plane are arbitrarily set at 20°-25°; the angle between the eighteenth blade and the preset reference plane is arbitrarily set at 45°-50°; the angle between the 20th blade and the preset reference plane is arbitrarily set at 30°-35°.

18. The spinning tray according to claim 17, wherein: The plurality of blades further include a twenty-first blade and a twenty-second blade, the twenty-first blade being located between the seventeenth blade and the eighteenth blade, and the twenty-second blade being located between the nineteenth blade and the twenty-tenth blade; wherein an angle between the twenty-first blade and the preset reference plane is greater than an angle between the twenty-second blade and the preset reference plane; an angle between the twenty-first blade and the preset reference plane is greater than an angle between the eighteenth blade and the preset reference plane, and an angle between the eighteenth blade and the preset reference plane is greater than an angle between the seventeenth blade and the preset reference plane; an angle between the twenty-second blade and the preset reference plane is greater than an angle between the twenty-th blade and the preset reference plane, and an angle between the twenty-th blade and the preset reference plane is greater than an angle between the nineteenth blade and the preset reference plane; The included angle between the 21st blade and the preset reference plane is an arbitrary value of 53°-57°; the included angle between the 22nd blade and the preset reference plane is an arbitrary value of 44°-48°.

19. The spinning tray according to claim 18, wherein The plurality of blades further include a twenty-third blade and a twenty-fourth blade, the twenty-third blade being located on a side of the eighteenth blade away from the seventeenth blade, and the twenty-fourth blade being located on a side of the twentieth blade away from the seventeenth blade; an angle between the twenty-third blade and the preset reference plane is greater than an angle between the twenty-fourth blade and the preset reference plane; an angle between the twenty-third blade and the preset reference plane is less than an angle between the seventeenth blade and the preset reference plane, and an angle between the seventeenth blade and the preset reference plane is less than an angle between the eighteenth blade and the preset reference plane; an angle between the twenty-fourth blade and the preset reference plane is less than an angle between the nineteenth blade and the preset reference plane, and an angle between the nineteenth blade and the preset reference plane is less than an angle between the twenty-th blade and the preset reference plane; The included angle between the 23rd blade and the preset reference plane is an arbitrary value of 5°-8°; the included angle between the 24th blade and the preset reference plane is an arbitrary value of 4°-6°.

20. The spinning tray of claim 1, wherein: The blades are rotatably mounted on the disc body.

21. The spinning tray of claim 20, wherein: The disk body is provided with a mounting hole corresponding to each of the blades and an arc-shaped groove with the mounting hole as the center, and each of the blades is fixed to the disk body by a first bolt and a second bolt, wherein the first bolt is installed in cooperation with the mounting hole, and the second bolt passes through the arc-shaped groove and can be installed in an adjustable position along the arc-shaped groove.

22. The spinning tray of claim 1, wherein: The plurality of blades are located on the same side surface of the disk body.

23. The spinning tray of claim 1, wherein: The plurality of blades are arranged on one side of the swing center.

24. The spinning tray of claim 1, wherein: The length of the blade is 26 mm ± 2 mm, and the thickness of the blade is 5 mm ± 2 mm.

25. The spinning tray of claim 1, wherein: The blades are fixed to the disc body by bolts; Alternatively, the disc body is made of plastic material, and the disc body is fixed together with the blades by injection molding.

26. A spreading mechanism, comprising the spinning disc according to any one of claims 1-25.

27. The spreading mechanism of claim 26, further comprising a drive assembly; The disc body includes a connecting portion and a dialing portion, wherein the connecting portion is in transmission connection with the driving assembly to drive the spinning disc to rotate around a first axis under the drive of the driving assembly; the blade is arranged on the dialing portion and is used to dial the material; wherein, The dialing portion is arc-shaped and surrounds the connecting portion at a specific angle, and the specific angle is less than 360°.

28. The spreading mechanism according to claim 27, wherein: The specific angle is configured to be smaller than 180°.

29. The spreading mechanism according to claim 27, wherein: The disc body is provided with a hollow area, and the hollow area is used for allowing materials to pass through.

30. The spreading mechanism according to claim 29, wherein: The disc body has a first side and a second side that are arranged opposite to each other, and the blades are arranged on the first side; the hollow area runs through the first side and the second side, so as to enable the material to move from the first side to the second side and fall freely from the second side.

31. The spreading mechanism according to claim 30, wherein: The spreading mechanism further includes a conveying assembly, and the driving assembly is arranged on the conveying assembly; the conveying assembly is provided with a discharge port, and the conveying assembly is used to discharge the material from the discharge port; wherein the discharge port is opposite to the first side and is distributed at intervals.

32. The spreading mechanism according to claim 31, wherein: The disc body is configured to swing back and forth around the first axis in a vertical plane, and the blade can move to below the discharge port as the disc body swings.

33. The spreading mechanism of claim 29, wherein: The connecting portion is provided with the hollow area.

34. The spreading mechanism according to claim 33, wherein: The connecting part includes an assembly part and at least two connecting parts, the first end of the connecting part is connected to the dialing part, the second ends of at least two of the connecting parts are connected to the assembly part, and the assembly part is transmission-connected to the driving assembly; at least two of the connecting parts are spaced apart and distributed around the first axis to form the hollow area.

35. The spreading mechanism of claim 27, wherein: The center of the dialing portion coincides with the first axis.

36. The spreading mechanism of claim 27, wherein: The driving assembly is configured to drive the disk to reciprocate around the first axis.

37. The spreading mechanism according to claim 36, wherein: The driving assembly includes a first motor and a crank assembly, and the first motor is drivingly connected to the disk body through the crank assembly.

38. The spreading mechanism of claim 27, wherein: The spinning disc comprises a plurality of blades, which are all connected to the dialing part and are sequentially spaced and distributed along the length extension direction of the dialing part.

39. The spreading mechanism according to claim 38, wherein: The driving assembly is used to drive the disk body to swing back and forth around the first axis on both sides of the second axis, and the second axis is perpendicular to the first axis; the dialing part includes a first arc segment and a second arc segment connected to each other, and the connection between the first arc segment and the second arc segment is the center line of the disk body, and when the disk body is stationary, the center line coincides with the second axis; The first arc segment and the second arc segment are both connected with a plurality of blades; wherein, An included angle between at least a portion of the blade connected to the first arc segment and the center line is greater than an included angle between at least a portion of the blade connected to the second arc segment and the center line.

40. The spreading mechanism of claim 27, wherein: The spreading mechanism is used for the UAV to perform spreading operations.

41. A spreading device, comprising a material storage mechanism and the spreading mechanism according to any one of claims 26-40, wherein the spreading mechanism is arranged in the material storage mechanism, the material storage mechanism is used to store materials and transport the materials to the spreading mechanism for spreading.

42. An unmanned equipment, comprising the spreading mechanism according to any one of claims 26-40, or the spreading device according to claim 41.

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