Spreading device

Abstract

This invention provides a spreading device, comprising: a spreading box having a material inlet, a storage chamber, and a material outlet sequentially connected, the material outlet being located at the bottom of the spreading box; a swirling part and a conveying part, synchronously and rotatably disposed at the bottom of the spreading box and located below the material outlet, the swirling part having multiple receiving surfaces spaced circumferentially along the material outlet, the receiving surfaces being used to receive material falling from the material outlet; a conveying part disposed between two adjacent receiving surfaces, one end of the conveying part extending below the material outlet, the other end of the conveying part extending in a direction away from the material outlet, conveying material in a direction away from the material outlet, the conveying speed of the material on the receiving surfaces being different from the conveying speed of the material on the conveying part; and a first driving part disposed on the spreading box, the first driving part being drivenly connected to the swirling part. This solution can solve the problems of small spreading coverage and poor spreading effect in existing spreading devices.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and equipment technology, and more specifically, to a seeding device. Background Technology

[0002] Drone seeding technology is changing the way people in agriculture and forestry work. Current drone seeding technology involves mounting a seeding container on a drone, which then carries the container through the air to complete the seeding operation.

[0003] In existing technologies, the bottom of the spreading box is usually equipped with a discharge port, from which the material inside the spreading box falls during the drone's flight. However, existing spreading boxes have a relatively small spreading coverage area, which affects spreading efficiency. Summary of the Invention

[0004] This invention provides a sowing device to solve the problem that the sowing coverage area of ​​existing sowing devices is small, which affects the sowing effect.

[0005] This invention provides a spreading device, comprising: a spreading box having a material inlet, a storage chamber, and a material outlet sequentially connected, the material outlet being disposed at the bottom of the spreading box; a swishing part rotatably disposed at the bottom of the spreading box, the swishing part being located below the material outlet, the swishing part being used to receive material falling from the material outlet, the swishing part having a plurality of receiving surfaces spaced circumferentially along the material outlet, the receiving surfaces being used to receive material falling from the material outlet; a conveying part rotatably disposed at the bottom of the spreading box, the conveying part being located below the material outlet, the conveying part rotating synchronously with the swishing part, a conveying part being disposed between two adjacent receiving surfaces, one end of the conveying part extending below the material outlet, the other end of the conveying part extending in a direction away from the material outlet, the conveying part being used to receive material falling from the material outlet and convey material in a direction away from the material outlet, the conveying speed of the material on the receiving surfaces being different from the conveying speed of the material on the conveying part; and a first driving part disposed on the spreading box, the first driving part being drivenly connected to the swishing part to cause the swishing part to rotate.

[0006] Furthermore, the slinging unit includes: a connecting shaft, rotatably mounted on the spreading box, with one end of the connecting shaft located below the material outlet, and a first driving unit drivingly connected to the connecting shaft; a slinging disc, coaxially mounted with the connecting shaft and mounted on the connecting shaft, the slinging disc having multiple clearance grooves, the multiple clearance grooves being distributed circumferentially along the slinging disc and extending radially along the slinging disc, with a receiving surface between two adjacent clearance grooves, and a conveying unit correspondingly provided in each clearance groove.

[0007] Furthermore, the conveying unit is mounted on the swinging unit.

[0008] Furthermore, the conveying unit includes: a mounting frame disposed on the swinging unit, the mounting frame extending along the length direction of the clearance groove; a conveying roller assembly including a driving roller and a driven roller, the driving roller and the driven roller being spaced apart along the length direction of the mounting frame, the driving roller and the driven roller being rotatably disposed on the mounting frame respectively; a conveyor belt sleeved on the outer periphery of the conveying roller assembly, the conveyor belt conveying along the direction from the center of the swinging disc to the circumferential surface; and a second drive unit disposed on the spreading box or the swinging disc, the second drive unit being drivenly connected to the driving roller.

[0009] Furthermore, the second drive unit includes a transmission assembly disposed between the connecting shaft and the drive roller, wherein the connecting shaft drives the drive roller to rotate via the transmission assembly.

[0010] Furthermore, the transmission assembly includes a bevel gear assembly, comprising a first bevel gear and a last bevel gear. The first bevel gear is mounted on and coaxially with the connecting shaft, and the last bevel gear is mounted on and coaxially with the drive roller. The first bevel gear drives the last bevel gear to rotate.

[0011] Furthermore, the spreading device also includes a partition, disposed between adjacent receiving surfaces and conveying sections, the partition being used to partition the material located between adjacent receiving surfaces and conveying sections.

[0012] Furthermore, the conveying surface and the receiving surface of the conveying unit are on the same plane, and the baffle is set on the upper surface of the sling plate.

[0013] Furthermore, the area of ​​the receiving surface is larger than the area of ​​the conveying surface of the conveying section.

[0014] Furthermore, the spreading device also includes: a partition section disposed within the storage cavity, which divides the storage cavity into an independent main compartment and a secondary compartment, the secondary compartment being arranged in a ring around the outer periphery of the main compartment, the material inlet being connected to both the main compartment and the secondary compartment, and a first material drop gap being formed between the end of the partition section near the material outlet and the side wall of the spreading box; and a first adjustment section movably disposed at the end of the partition section near the material outlet, the first adjustment section being used to adjust the size of the first material drop gap.

[0015] Furthermore, the spreading device also includes: a pressure-bearing part, which is movably disposed in the storage cavity, the pressure-bearing part being located above the material outlet, and a second material drop gap being formed between the peripheral surface of the pressure-bearing part and the side wall of the storage cavity; and a second adjustment part, which is disposed between the spreading box and the pressure-bearing part, and is used to adjust the relative position between the pressure-bearing part and the spreading box to adjust the size of the second material drop gap.

[0016] Furthermore, the spreading device also includes: an arc-shaped plate disposed within the storage cavity, the arc-shaped plate being located above the material outlet, the arc-shaped plate protruding in a direction away from the material outlet, a third material drop gap being formed between the circumferential surface of the arc-shaped plate and the side wall of the spreading box, the third material drop gap being located on the outer periphery of the material outlet; and an auger component disposed within the storage cavity and below the arc-shaped plate, the auger component including a housing and an auger body disposed within the housing, the housing being disposed within the storage cavity, the housing having an inlet and an outlet disposed opposite to each other, the inlet communicating with the third material drop gap, the outlet communicating with the material outlet, and the auger body conveying material along the direction from the inlet to the outlet.

[0017] Furthermore, the seeding device also includes a flight section, on which the seeding box is mounted.

[0018] By applying the technical solution of this invention, the spreading range and efficiency of materials can be improved by setting up a slinging section and a conveying section. Specifically, the material in the spreading box falls onto the slinging section and the conveying section, which rotate synchronously. Under the centrifugal force of the slinging section and the conveying section, the material is slinged out to achieve spreading. The receiving surface of the slinging section and the conveying section are alternately distributed along the circumference of the material outlet, and the conveying section conveys the material in a direction away from the material outlet. This arrangement makes the slinging speed of the material on the conveying section different from the slinging speed on the receiving surface. The above arrangement can ensure the uniformity of material spreading while increasing the spreading area and improving the spreading efficiency. In traditional technical solutions, the material is mostly sprinkled vertically to the ground from the material outlet, resulting in a small spreading coverage area and affecting spreading efficiency. Compared with traditional technical solutions, the arrangement of this solution can increase the spreading range of materials while ensuring the uniformity of material spreading. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a seeding device provided according to an embodiment of the present invention is shown;

[0021] Figure 2 It shows Figure 1 A schematic diagram of a local structure in the image;

[0022] Figure 3 A partial structural diagram of the cooperation between the swinging part and the conveying part provided in an embodiment of the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 10. Spreading box;

[0025] 101. Material Inlet; 102. Storage Chamber; 1021. Main Compartment; 1022. Secondary Compartment; 103. Material Outlet;

[0026] 20. Swinging part;

[0027] 201. Surface of connection;

[0028] 21. Connecting shaft; 22. Swing disc; 2201. Clearance groove;

[0029] 30. Conveying Department;

[0030] 31. Mounting bracket;

[0031] 321. Driving roller; 322. Driven roller;

[0032] 33. Conveyor belt;

[0033] 34. Second drive unit; 341. First bevel gear; 342. End bevel gear; 343. First transmission bevel gear; 344. Connecting rod; 345. Second transmission bevel gear;

[0034] 40. First drive unit;

[0035] 50. Partition section;

[0036] 60. Divider; 61. First adjustment section;

[0037] 70. Pressure-bearing section; 71. Second regulating section;

[0038] 80. Receiving plate;

[0039] 90. Screwdriver component; 91. Housing; 92. Screwdriver body; 93. Screwdriver motor; 94. First screwdriver bevel gear; 95. Second screwdriver bevel gear. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] like Figures 1 to 3As shown, this embodiment of the invention provides a seeding device, which includes a flight unit, a seeding box 10, a swirling unit 20, a conveying unit 30, and a first driving unit 40. The seeding box 10 is mounted on the flight unit, which can be a flying device such as a drone. The seeding box 10 has a material inlet 101, a storage cavity 102, and a material outlet 103 connected in sequence, with the material outlet 103 located at the bottom of the seeding box 10. The swirling unit 20 is rotatably mounted at the bottom of the seeding box 10, located below the material outlet 103. The swirling unit 20 is used to receive material falling from the material outlet 103, and has multiple receiving surfaces 201 spaced circumferentially along the material outlet 103 for receiving material falling from the material outlet 103. A conveying section 30 is rotatably mounted at the bottom of the spreading box 10. The conveying section 30 is located below the material outlet 103. The conveying section 30 rotates synchronously with the swinging section 20. A conveying section 30 is positioned between two adjacent receiving surfaces 201. One end of the conveying section 30 extends below the material outlet 103, and the other end extends away from the material outlet 103. The conveying section 30 receives material falling from the material outlet 103 and conveys the material away from the material outlet 103. The transport speed of the material on the receiving surface 201 is different from the transport speed of the material on the conveying section 30. A first driving section 40 is mounted on the spreading box 10 and is drivenly connected to the swinging section 20 to rotate the swinging section 20.

[0042] By applying the technical solution of this invention, the spreading range and efficiency of the material can be improved by setting up the swinging part 20 and the conveying part 30. Specifically, the material in the spreading box 10 falls onto the swinging part 20 and the conveying part 30. The swinging part 20 and the conveying part 30 rotate synchronously, and the material is thrown out by the centrifugal force of the swinging part 20 and the conveying part 30 to achieve spreading. The receiving surface 201 of the swinging part 20 and the conveying part 30 are alternately distributed circumferentially along the material outlet 103, and the conveying part 30 conveys the material in a direction away from the material outlet 103. This arrangement makes the throwing speed of the material on the conveying part 30 different from the throwing speed on the receiving surface 201, and the distance the material is spread is different. The above arrangement can ensure the uniformity of material spreading while increasing the spreading area and improving the spreading efficiency. In the conventional technical solution, the material is vertically sprinkled from the material outlet to the ground, resulting in a smaller spreading coverage area and affecting the spreading efficiency. Compared with traditional technical solutions, this solution involves the material being subjected to centrifugal force, and the material is thrown out at different speeds in the conveying section 30 and the receiving surface 201. This design can improve the spreading range of the material while ensuring the uniformity of the spreading.

[0043] In this embodiment, the material on the conveying section 30 is thrown out at a higher speed than the material on the receiving surface 201, and the material on the conveying section 30 is spread over a greater distance than the material on the receiving surface 201. This increases the proportion of material spread to a more distant area, improving the spreading range and uniformity.

[0044] Specifically, the slinging unit 20 includes a connecting shaft 21 and a slinging disc 22. The connecting shaft 21 is rotatably mounted on the spreading box 10, with one end of the connecting shaft 21 located below the material outlet 103. The first driving unit 40 is drivenly connected to the connecting shaft 21. The slinging disc 22 is coaxially mounted on the connecting shaft 21 and has multiple clearance grooves 2201. These clearance grooves 2201 are spaced apart circumferentially along the slinging disc 22 and extend radially along the slinging disc 22. Adjacent clearance grooves 2201 have a receiving surface 201 between them, and a conveying unit 30 is correspondingly provided in each clearance groove 2201. This arrangement ensures that the slinging disc 22 and the receiving surface 201 are spaced apart circumferentially at the material outlet 103, thus ensuring the rationality of the device structure.

[0045] This solution does not limit the synchronous rotation of the conveying unit 30 and the swinging unit 20.

[0046] In some embodiments of this solution, there is no connection between the conveying unit 30 and the swinging unit 20, and multiple conveying units 30 are rotatably mounted on the spreading box 10.

[0047] In this embodiment, the conveying unit 30 is mounted on the swinging unit 20. This arrangement improves the synchronization of rotation between the conveying unit 30 and the swinging unit 20. Furthermore, the first driving unit 40 drives the swinging unit 20, and the rotation of the swinging unit 20 causes the conveying unit 30 to rotate synchronously. This reduces the number of components in the device, lowers its weight and cost, and improves its structural compactness.

[0048] Furthermore, the multiple conveying sections 30 and the slinger 22 form a circular plate-like structure. This circular plate-like structure is coaxial with the material outlet 103. This arrangement improves the uniformity of material distribution on the conveying sections 30 and the receiving surface 201, further enhancing the uniformity of material spreading.

[0049] In this embodiment, the conveying unit 30 includes a mounting frame 31, a conveyor roller assembly, a conveyor belt 33, and a second drive unit 34. The mounting frame 31 is mounted on the swinging unit 20 and extends along the length of the clearance groove 2201. The conveyor roller assembly includes a driving roller 321 and a driven roller 322, which are spaced apart along the length of the mounting frame 31 and rotatably mounted on the mounting frame 31. The conveyor belt 33 is fitted around the outer periphery of the conveyor roller assembly and conveys along the direction from the center of the swinging disc 22 to its circumference. The second drive unit 34 is mounted on the spreading box 10 or the swinging disc 22 and is drivenly connected to the driving roller 321. The above-described conveying unit 30 has a simple structure and facilitates assembly with the swinging unit 20.

[0050] In some embodiments of this solution, the second drive unit 34 is disposed on the seeding box 10.

[0051] In this embodiment, the second drive unit 34 includes a transmission assembly disposed between the connecting shaft 21 and the drive roller 321. The connecting shaft 21 drives the drive roller 321 to rotate via the transmission assembly. The transmission assembly eliminates the need for an additional power output mechanism; the connecting shaft 21 can drive the drive roller 321 to rotate during its own rotation, thus reducing the cost of the device.

[0052] Specifically, the transmission assembly includes a bevel gear assembly, which comprises a first bevel gear 341 and a last bevel gear 342. The first bevel gear 341 is mounted on and coaxially with the connecting shaft 21, while the last bevel gear 342 is mounted on and coaxially with the drive roller 321. The first bevel gear 341 drives the last bevel gear 342 to rotate. This bevel gear assembly design is simple in structure and provides strong transmission stability.

[0053] Specifically, the bevel gear assembly includes a leading bevel gear 341 and multiple trailing bevel gears 342, with one trailing bevel gear 342 disposed on each driving roller 321. The bevel gear assembly also includes multiple transmission gear structures, with a transmission gear structure disposed between each trailing bevel gear 342 and the leading bevel gear 341. This arrangement allows the same leading bevel gear 341 to drive multiple trailing bevel gears 342 to rotate synchronously through different transmission gear structures, improving the synchronicity of the rotation of the multiple trailing bevel gears 342.

[0054] In this embodiment, the transmission bevel gear structure includes a first transmission bevel gear 343, a connecting rod 344, and a second transmission bevel gear 345 connected sequentially. The first transmission bevel gear 343 and the second transmission bevel gear 345 are coaxial with the connecting rod 344, and are respectively located at the two ends of the connecting rod 344. The first transmission bevel gear 343 meshes with the first-end bevel gear 341, and the second transmission bevel gear 345 meshes with the corresponding last-end bevel gear 342. This configuration results in a simple structure and strong transmission stability.

[0055] Furthermore, the diameter of the first bevel gear 341 is 2 to 5 times the diameter of the connecting shaft 21. This arrangement makes the linear velocity of the first bevel gear 341 higher than that of the connecting shaft 21. Due to the difference in linear velocity, the bevel gear assembly drives the driving roller 321 and driven roller 322 of the conveying unit 30 to rotate the conveyor belt 33.

[0056] In this embodiment of the solution, the spreading device further includes a baffle 50, which is disposed between adjacent receiving surfaces 201 and conveying sections 30. The baffle 50 is used to block material located between adjacent receiving surfaces 201 and conveying sections 30. The baffle 50 can block material on the receiving surfaces 201 and conveying sections 33, ensuring the uniformity of material falling from the receiving surfaces 201 and conveying sections 33.

[0057] Furthermore, the conveying surface of the conveying section 30 and the receiving surface 201 are on the same plane, and the partition section 50 is disposed on the upper surface of the slinger 22. Specifically, the upper surface of the conveyor belt 33 and the receiving surface 201 are on the same horizontal plane. This arrangement can improve the uniformity of material falling on the conveyor belt 33 and the receiving surface 201. In this embodiment, the partition section 50 has a plate-like structure. The partition section 50 is disposed on the upper surface of the slinger 22, which has a simple structure and can ensure the stability of the connection between the partition section 50 and the slinger 22.

[0058] In this embodiment, the area of ​​the receiving surface 201 is larger than the area of ​​the conveying surface of the conveying section 30. The material on the receiving surface 201 is thrown out, and the spreading range is relatively small compared to the conveying section 30. Furthermore, within the area where the material falls, the density of the material gradually decreases from the center outwards. The conveying section 30, while expanding the spreading range of the material, can also supplement the low-density material areas spread by the receiving surface 201, further improving the uniformity of material spreading.

[0059] In this embodiment, the receiving surface 201 is approximately arc-shaped, and the conveying section 30 is approximately rectangular. This arrangement facilitates the realization that the area of ​​the receiving surface 201 is larger than the area of ​​the conveying surface of the conveying section 30, and also facilitates the formation of a generally circular plate-like structure between the sling tray 22 and the multiple conveying sections 30.

[0060] Furthermore, the spreading device also includes a partition 60 and a first adjustment part 61. The partition 60 is disposed within the storage cavity 102, dividing the storage cavity 102 into an independent main compartment 1021 and a secondary compartment 1022. The secondary compartment 1022 is arranged annularly around the outer periphery of the main compartment 1021. The material inlet 101 communicates with both the main compartment 1021 and the secondary compartment 1022. A first material drop gap is formed between the end of the partition 60 near the material outlet 103 and the side wall of the spreading box 10. The first adjustment part 61 is movably disposed at the end of the partition 60 near the material outlet 103, and is used to adjust the size of the first material drop gap. In this embodiment, the volume of the secondary compartment 1022 occupies 1 / 3 to 1 / 2 of the volume of the main compartment 1021. This configuration allows for adjustment of the amount of material from the secondary compartment 1022 falling to the bottom of the spreading box 10 by changing the size of the first material drop gap, thus regulating the force exerted by the material directly on the bottom of the spreading box 10. Furthermore, this configuration allows for adjustment of the material's falling speed, further enhancing the adaptability of the device.

[0061] Specifically, the material inlet 101 is located at the top of the spreading box 10, and the partition 60 is roughly in the shape of an annular plate. The end of the partition 60 near the material inlet 101 extends to the material inlet 101, so that when the material at the material inlet 101 falls, the partition 60 diverts the material so that most of the material at the material inlet 101 enters the main compartment 1021 and a small portion of the material enters the auxiliary compartment 1022.

[0062] Furthermore, the material outlet 103 is located at the bottom of the main compartment 1021, and there is a certain gap between the end of the first adjusting part 61 near the material outlet 103 and the material outlet 103. This arrangement allows the material in the auxiliary compartment 1022 to fall to the bottom of the main compartment 1021.

[0063] In this embodiment of the solution, the first material drop gap is arranged in a ring shape, which can improve the uniformity of material drop.

[0064] This solution does not limit the specific form of the first adjustment part 61, as long as the first adjustment part 61 can adjust the first material drop gap.

[0065] In some embodiments of this solution, the first adjustment part 61 includes a first adjustment plate and a first telescopic member. The first adjustment plate is hingedly disposed at one end of the partition part 60 near the material outlet 103. The first telescopic member is disposed on the partition part 60. The first telescopic member drives the first adjustment plate to rotate to adjust the size of the first material drop gap.

[0066] Furthermore, the spreading device also includes a pressure-bearing part 70 and a second adjusting part 71. The pressure-bearing part 70 is movably disposed within the storage cavity 102, located above the material outlet 103, and a second material drop gap is formed between the peripheral surface of the pressure-bearing part 70 and the side wall of the storage cavity 102. The second adjusting part 71 is disposed between the spreading box 10 and the pressure-bearing part 70, and is used to adjust the relative position between the pressure-bearing part 70 and the spreading box 10 to adjust the size of the second material drop gap. The arrangement of the pressure-bearing part 70 and the second adjusting part 71 can further improve the adjustment accuracy of the material drop speed. When it is necessary to increase the material drop speed, the size of the second material drop gap is increased by the second adjusting part 71 and the pressure-bearing part 70; when it is necessary to decrease the material drop speed, the size of the second material drop gap is decreased by the second adjusting part 71 and the pressure-bearing part 70.

[0067] In this embodiment, the material inlet 101 is located at the top of the spreading box 10, and the material outlet 103 is located at the bottom of the spreading box 10. The diameter of the spreading box 10 gradually decreases along the direction from the material inlet 101 to the material outlet 103. The pressure-bearing part 70 includes a pressure plate, which is an arc-shaped plate that bends towards the material inlet 101. The pressure plate can move relative to the spreading box 10 along its height direction. When the pressure-bearing part 70 moves upward, the second material drop gap gradually increases; when the pressure-bearing part 70 moves downward, the second material drop gap gradually decreases. The second adjustment part 71 is located on the spreading box 10 and drives the pressure-bearing part 70 to rise or fall. This configuration is simple in structure and improves the convenience of adjusting the second material drop gap. Furthermore, setting the pressure plate in the form of an arc-shaped plate facilitates the falling of materials and improves the smoothness of material falling.

[0068] Furthermore, the pressure-bearing part 70 is located below the auxiliary compartment 1022, that is, the second material drop gap is located below the first material drop gap, and the second material drop gap is arranged in a ring around the outer periphery of the pressure-bearing part 70. This arrangement can further improve the accuracy and controllability of adjusting the material drop speed.

[0069] Specifically, the second adjustment part 71 includes an adjustment screw. One end of the adjustment screw passes through the main compartment 1021 and is fixedly connected to the pressure-bearing part 70. The other end of the adjustment screw passes through the top wall of the spreading box 10 and extends to the outside of the spreading box 10.

[0070] Furthermore, a stop is provided at the top of the adjusting screw, which engages with the stop of the spreading box 10. This design prevents the adjusting screw from separating from the spreading box 10.

[0071] In this embodiment of the solution, the spreading device further includes a scale plate, which is disposed on the top surface of the spreading box 10 and sleeved around the outer periphery of the adjusting screw. The scale plate has arc markings. The adjusting screw determines the number of rotations via the arc markings on the scale plate, thereby precisely adjusting the size of the second material drop gap.

[0072] Furthermore, the spreading device also includes a receiving plate 80 and an auger component 90. The receiving plate 80 is disposed within the storage cavity 102, located above the material outlet 103, and protrudes away from the material outlet 103. A third material drop gap is formed between the peripheral surface of the receiving plate 80 and the side wall of the spreading box 10, and the third material drop gap is located on the outer periphery of the material outlet 103. The auger component 90 is disposed within the storage cavity 102 and below the receiving plate 80. The auger component 90 includes a housing 91 and an auger body 92 disposed within the housing 91. The housing 91 has an inlet and an outlet arranged opposite to each other. The inlet communicates with the third material drop gap, and the outlet communicates with the material outlet 103. The auger body 92 conveys material along the direction from the inlet to the outlet. This arrangement allows for adjustment of the material drop speed by regulating the rotation speed of the auger body 92, further improving the accuracy of material drop speed control.

[0073] This design does not limit the number of auger components 90. In this embodiment, the third material discharge gap is annularly arranged on the outer periphery of the receiving plate 80. Four sets of auger components 90 are provided, and the four sets of auger components 90 are distributed at intervals along the circumference of the material outlet 103. The discharge ports of the four sets of auger components 90 are respectively located close to the axial direction of the material outlet 103. This arrangement is structurally reasonable and can improve the uniformity of material entering the material outlet 103 from the auger components 90.

[0074] In this embodiment, the auger component 90 further includes an auger motor 93, a first auger bevel gear 94, and four second auger bevel gears 95. The auger motor 93 is mounted on the spreading box 10, the first auger bevel gear 94 is mounted on the output shaft of the auger motor 93, and each auger body 92 has a second auger bevel gear 95 mounted on its rotating shaft. The four second auger bevel gears 95 mesh with the first auger bevel gears 94 respectively. This arrangement allows one auger motor 93 to synchronously drive four sets of auger bodies 92 through one first auger bevel gear 94 and four second auger bevel gears 95. The structure is simple and compact, and it ensures that the four sets of auger components 90 work synchronously, improving the uniformity and consistency of material falling.

[0075] Furthermore, the auger motor 93, the first auger bevel gear 94, and the four second auger bevel gears 95 are respectively located within the main compartment 1021 and below the receiving plate 80. This arrangement is structurally sound and allows the receiving plate 80 to protect the aforementioned components, thus enhancing the safety of the device.

[0076] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0077] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0078] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0079] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated ninety degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0080] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A spreading device, characterized in that The application relates to a seed sowing box. The seed sowing box comprises a sowing box (10) with a material inlet (101), a storage cavity (102) and a material outlet (103) sequentially communicated, the material outlet (103) being arranged at the bottom of the sowing box (10); a swinging part (20) rotatably arranged at the bottom of the sowing box (10), the swinging part (20) being located below the material outlet (103), the swinging part (20) having a plurality of receiving surfaces (201) distributed along the circumference of the material outlet (103), the receiving surfaces (201) being used for receiving the material falling from the material outlet (103); a conveying part (30) rotatably arranged at the bottom of the sowing box (10), the conveying part (30) being located below the material outlet (103), the conveying part (30) being synchronously rotated with the swinging part (20), one conveying part (30) being arranged between two adjacent receiving surfaces (201), one end of the conveying part (30) extending below the material outlet (103), the other end of the conveying part (30) extending away from the material outlet (103), the conveying part (30) being used for receiving the material falling from the material outlet (103) and conveying the material away from the material outlet (103), the conveying speed of the material on the receiving surface (201) being different from the conveying speed of the material on the conveying part (30); a first driving part (40) arranged on the sowing box (10), the first driving part (40) being drivingly connected with the swinging part (20) to rotate the swinging part (20). The swinging part (20) comprises a connecting shaft (21) rotatably arranged on the sowing box (10), one end of the connecting shaft (21) being located below the material outlet (103), the first driving part (40) being drivingly connected with the connecting shaft (21); a spinning disc (22) coaxially arranged with the connecting shaft (21) and arranged on the connecting shaft (21), the spinning disc (22) being provided with a plurality of avoiding grooves (2201) distributed along the circumference of the spinning disc (22), the avoiding grooves (2201) extending along the radial direction of the spinning disc (22), the avoiding grooves (2201) having the receiving surfaces (201) between two adjacent avoiding grooves (2201), the conveying part (30) being arranged in each avoiding groove (2201). The conveying part (30) is mounted on the swinging part (20). The conveying part (30) comprises a mounting frame (31) arranged on the swinging part (20), the mounting frame (31) extending along the length direction of the avoiding groove (2201). ​ ​ ​ ​ ​ ​ The conveying roller set comprises driving rollers (321) and driven rollers (322) which are spaced apart along the length direction of the mounting frame (31), and the driving rollers (321) and the driven rollers (322) are rotatably arranged on the mounting frame (31) respectively; The conveying belt (33) is sleeved on the outer periphery of the conveying roller set and conveys along the direction from the center to the circumferential surface of the spinning disc (22); The second driving part (34) is arranged on the spreading box (10) or the spinning disc (22), and the second driving part (34) is drivingly connected with the driving roller (321); The area of the receiving surface (201) is greater than the area of the conveying surface of the conveying part (30).

2. The spreader of claim 1, wherein The second driving part (34) comprises: The transmission assembly is arranged between the connecting shaft (21) and the driving roller (321), and the connecting shaft (21) drives the driving roller (321) to rotate through the transmission assembly.

3. The spreader of claim 2, wherein The transmission assembly comprises: The bevel gear assembly comprises a first bevel gear (341) and a last bevel gear (342), the first bevel gear (341) is arranged on the connecting shaft (21) and coaxially arranged with the connecting shaft (21), the last bevel gear (342) is arranged on the driving roller (321) and coaxially arranged with the driving roller (321), and the first bevel gear (341) drives the last bevel gear (342) to rotate.

4. The spreader of claim 1, wherein The spreading device further comprises: The barrier part (50) is arranged between the adjacent receiving surface (201) and the conveying part (30), and the barrier part (50) is used for blocking the material located between the adjacent receiving surface (201) and the conveying part (30).

5. The spreader of claim 4, wherein The conveying surface of the conveying part (30) and the receiving surface (201) are in the same plane, and the barrier part (50) is arranged on the upper surface of the spinning disc (22).

6. The spreader of claim 1, wherein The spreading device further comprises: The separation part (60) is arranged in the storage cavity (102), the separation part (60) separates the storage cavity (102) into a main cabin (1021) and a secondary cabin (1022) which are independent of each other, the secondary cabin (1022) is arranged annularly on the outer periphery of the main cabin (1021), the material inlet (101) is in communication with the main cabin (1021) and the secondary cabin (1022) respectively, and one end of the separation part (60) close to the material outlet (103) and the side wall of the spreading box (10) form a first material falling gap; The first adjusting part (61) is movably arranged at one end of the separation part (60) close to the material outlet (103), and the first adjusting part (61) is used for adjusting the size of the first material falling gap.

7. The spreader of claim 1, wherein The spreading device further comprises: A pressure bearing part (70) movably arranged in the storage cavity (102), the pressure bearing part (70) is located above the material outlet (103), and a second material falling gap is formed between the peripheral surface of the pressure bearing part (70) and the side wall of the storage cavity (102); A second adjusting part (71) is arranged between the spreading box (10) and the pressure bearing part (70), the second adjusting part (71) is used for adjusting the relative position between the pressure bearing part (70) and the spreading box (10), so as to adjust the size of the second material falling gap.

8. The spreader of claim 1, wherein The spreading device further comprises: A receiving plate (80) arranged in the storage cavity (102), the receiving plate (80) is located above the material outlet (103), the receiving plate (80) is convex towards the direction away from the material outlet (103), a third material falling gap is formed between the peripheral surface of the receiving plate (80) and the side wall of the spreading box (10), and the third material falling gap is located outside the periphery of the material outlet (103); An auger part (90) arranged in the storage cavity (102) and located below the receiving plate (80), the auger part (90) comprises a housing (91) and an auger body (92) arranged in the housing (91), the housing (91) is arranged in the storage cavity (102), the housing (91) has a feeding port and a discharging port arranged oppositely, the feeding port is communicated with the third material falling gap, the discharging port is communicated with the material outlet (103), and the auger body (92) conveys material along the direction from the feeding port to the discharging port.

9. The spreading device according to any one of claims 1 to 8, characterized in that The spreading device further comprises: A flying part, and the spreading box (10) is arranged on the flying part.

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