Bionic sowing hand disc and automatic double-rotation bionic sowing device

Abstract

The application provides a bionic sowing hand disc and an automatic double-rotation bionic sowing device. The bionic sowing hand disc comprises a rotating body and a plurality of sowing blades. The sowing blade comprises a blade body which is a concave space curved surface structure and a plurality of muscle and bone parts. The outer edge of the blade body comprises an inner inclined arc edge, an outer inclined arc edge, a first connecting arc edge and a second connecting arc edge. The first connecting arc edge is an inclined arc edge which is inclined downward and extends from the inner end to the outer end. The second connecting arc edge is a horizontal arc edge which extends in the horizontal plane. The first connecting arc edge is higher than the second connecting arc edge. A plurality of sowing flow channels are formed between the plurality of muscle and bone parts and the top surface of the blade body. The sowing flow channels are inclined arc flow channels which are inclined downward and extend from the inner end to the outer end. The bending directions of the muscle and bone parts and the sowing flow channels are consistent with the rotation direction of the bionic sowing hand disc. The application can imitate the palm and finger postures of a person when sowing materials to perform sowing operations, which is more in line with the sowing habits and effectively improves the sowing uniformity.

Description

Technical Field

[0001] This invention relates to the technical fields of agricultural drones, agricultural unmanned vehicles, etc., and in particular to a bionic seeding hand disc and an automatic dual-rotation bionic seeding device equipped with the bionic seeding hand disc. Background Technology

[0002] Plant protection drones, unmanned vehicles, and other plant protection equipment used for agricultural and forestry plant protection operations are all equipped with seeding devices for spreading seeds, fertilizers, pesticides, and other materials, thereby realizing the mechanization, intelligence, and modernization of agriculture.

[0003] Currently, the main types of spreading devices are single-rotation spreaders, auger-feed single-rotation spreaders, and jet spreaders.

[0004] Single-rotor seeders typically employ a single-rotor drone or a single-disc mechanical structure to achieve their seeding function. They utilize the centrifugal force generated by the rotating rotor or disk to throw material from a container and spread it across the target area; for example, Chinese invention patent application number 201911403840.1 discloses an adjustable seeding system for drone seeding. However, because single-rotor seeders use a centrifugal seeding method, they are easily affected by factors such as wind force and the downward airflow from the rotor, leading to uneven distribution of the seeded material and a high risk of double-seeding or missed seeding, thus affecting the accuracy of seeding.

[0005] The auger feeder single-rotation spreader combines an auger feeder and a single-rotation spreader, such as the spreading mechanism disclosed in Chinese Utility Model Patent Application No. 202421091590.9. However, due to the gap between the auger and the inner wall of the shell, the material within this gap is easily compressed; simultaneously, because it also employs a single-rotation spreading structure, uneven spreading is also a problem; furthermore, material accumulation or blockage of the auger's outlet is prone to occur during the spreading process, further affecting the uniformity of spreading.

[0006] Jet spreaders achieve their spreading function based on the jetting principle in fluid mechanics. They are equipped with components such as a material conveyor, air pump, spray pipe, and nozzles; for example, a portable fertilizer spreader disclosed in Chinese Utility Model Patent Application No. 201220714969.1. However, jet spreaders require a fan or high-pressure air pump to generate a high-speed airflow, which consumes a large amount of power, resulting in a significant increase in energy consumption. Due to the high energy consumption of jet spreaders, their endurance is limited, making them unsuitable for long-term continuous operation. In addition, jet spreaders generate considerable noise during operation, especially during high-speed airflow jetting. This noise causes noise pollution to operators and the surrounding environment, further limiting the use of jet spreaders, such as making them unsuitable for spreading operations near residential areas. Summary of the Invention

[0007] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a biomimetic seeding hand disc that effectively improves seeding uniformity and has low energy consumption and low noise.

[0008] To achieve the above objectives, the present invention provides a biomimetic seeding hand disc, comprising a rotating body and a plurality of seeding blades mounted on the periphery of the rotating body, each seeding blade comprising a blade body and a plurality of ribs protruding upward from the top surface of the blade body;

[0009] The outer edge of the blade body includes an inner inclined arc edge and an outer inclined arc edge distributed radially inward and outward along the rotating body, as well as a first connecting arc edge and a second connecting arc edge connecting the two ends of the inner inclined arc edge and the outer inclined arc edge respectively. The first connecting arc edge is an inclined arc edge that bends downward at its inner end higher than its outer end, and the second connecting arc edge is a horizontal arc edge that bends and extends in a horizontal plane. The first connecting arc edge is higher than the second connecting arc edge in general. The blade body formed by the inner inclined arc edge, the first connecting arc edge, the outer inclined arc edge and the second connecting arc edge connected in sequence is a concave spatial curved surface structure.

[0010] Several ribs are arranged side by side along the first connecting arc edge toward the second connecting arc edge. The ribs extend obliquely downward from the inner inclined arc edge to the outer inclined arc edge. Several dispersing channels are formed between the ribs and the top surface of the blade body. The dispersing channels are inclined arc-shaped channels that extend obliquely downward from the inside to the outside, and have a dispersing outlet at the outer end facing the outer inclined arc edge. The bending direction of the ribs and the bending direction of the dispersing channels are consistent with the rotation direction of the bionic dispersing hand disc.

[0011] The preferred embodiment of the biomimetic spreading hand disc is as follows: the width of the rib section gradually decreases along the top surface away from the blade body, so that both sides of the rib section in the width direction have material guide slopes, and the material guide slopes extend obliquely downward from the top of the rib section to the spreading channel.

[0012] The preferred embodiment of the bionic distributing hand disc is that the lower ends of the material guide slopes of several of the ribs overlap each other at the inner inclined arc edge.

[0013] The preferred embodiment of the bionic seeding hand disc is as follows: there are 4 to 6 seeding blades, and each seeding blade has 3 to 4 ribs.

[0014] The preferred embodiment of the bionic seeding hand disc is as follows: two adjacent seeding blades are stacked one on top of the other, with a portion of one seeding blade at its first connecting arc edge positioned above a portion of another seeding blade at its second connecting arc edge.

[0015] The present invention also provides an automatic dual-spinning bionic spreading device, comprising a material box, a feeding unit and a spreading unit arranged sequentially from top to bottom;

[0016] The feeding unit includes a feeding shell fixed to the material box, a feeding roller rotatably supported in the feeding shell, and a feeding drive source connected to the feeding roller. The outer periphery of the feeding roller is provided with several feeding slots, and the lower opening of the material box is connected to the feeding slots.

[0017] The spreading unit includes a spreading bracket fixed to the feeding shell, a spreading drive source, a spreading transmission mechanism, and two bionic spreading hand discs as described above. The rotating bodies of the two bionic spreading hand discs are rotatably supported in the spreading bracket. The spreading blades of the two bionic spreading hand discs are distributed on the lower side of the spreading bracket. A spreading inlet is provided on the spreading bracket. The feeding grid is connected to the spreading channels on the two bionic spreading hand discs through the spreading inlet. The spreading drive source is connected to the rotating bodies of the two bionic spreading hand discs through the spreading transmission mechanism and drives the rotating bodies of the two bionic spreading hand discs to rotate in opposite directions.

[0018] The preferred embodiment of the automatic dual-rotation bionic spreading device is as follows: the feeding drive source is a motor, which is integrated with the feeding roller to form a feeding module. The feeding module is integrally and detachably installed on the feeding shell along the axial direction of the feeding roller.

[0019] A preferred embodiment of the automatic double-rotation bionic spreading device is as follows: the feeding shell is provided with a feeding guide slope on one side of the feeding roller along the rotation direction of the feeding roller, and the lower end of the feeding guide slope extends to the spreading inlet.

[0020] A preferred embodiment of the automatic dual-rotation bionic dispersing device is as follows: the dispersing drive source is a motor, and the dispersing transmission mechanism includes a first gear and a second gear respectively fixed on the outer periphery of the rotating bodies of the two bionic dispersing hand discs, the first gear and the second gear meshing with each other, and the dispersing drive source being connected to the first gear or the second gear.

[0021] A preferred embodiment of the automatic dual-rotation bionic spreading device is as follows: the spreading drive source is a motor, and the spreading transmission mechanism includes a first pulley and a second pulley respectively fixed on the outer periphery of the rotating bodies of the two bionic spreading hand discs, and a transmission belt cross-connected to the outer periphery of the first pulley and the second pulley, wherein the spreading drive source is connected to the first pulley or the second pulley.

[0022] As described above, the bionic spreading hand disc and automatic double-rotating bionic spreading device of the present invention have the following beneficial effects:

[0023] This application designs the seeding blade as a concave, curved surface structure, and forms several seeding channels through multiple ribs. This mimics the hand and finger movements of a human when seeding materials, better aligning with the common practice of seeding materials to the left and right sides of field ridges, effectively improving seeding uniformity. Furthermore, this biomimetic seeding handpiece has a simple structure, is lightweight, and consumes little energy, making it well-suited for long-term continuous seeding operations; it also generates minimal noise during seeding, avoiding limitations in its use. Attached Figure Description

[0024] Figure 1 This is the front view of the bionic sowing hand disc of this application.

[0025] Figure 2 This is a top view of the bionic sowing hand disc of this application.

[0026] Figure 3 This is a front view of a single spreading blade in the biomimetic spreading hand disc of this application.

[0027] Figure 4 This is a top view of a single spreading blade in the biomimetic spreading hand disc of this application.

[0028] Figure 5 for Figure 4 A sectional view along the AA direction.

[0029] Figure 6 This is a front view of the automatic dual-spinning bionic dispersing device of this application.

[0030] Figure 7 This is a side view of the automatic dual-spinning bionic dispersing device of this application.

[0031] Figure 8 for Figure 6 A structural diagram from another perspective after omitting part of the outer shell.

[0032] Figure 9 for Figure 8 Side view.

[0033] Figure 10 This is a schematic diagram of the structure of the spreading transmission mechanism in the automatic double-rotation bionic spreading device of this application, according to Embodiment 1.

[0034] Figure 11 This is a schematic diagram of the second embodiment of the spreading transmission mechanism in the automatic double-rotation bionic spreading device of this application.

[0035] Component designation explanation

[0036] 10 Bionic Spreading Hand Plate

[0037] 20 Rotating bodies

[0038] 30. Spread the leaves

[0039] 40 Blade body

[0040] 41. Inner inclined arc edge

[0041] 42 Outer sloping arc edge

[0042] 43 First connecting arc edge

[0043] 44 Second connecting arc edge

[0044] 50. Musculoskeletal region

[0045] 51 Material feeding guide slope

[0046] 60 Spreading Channel

[0047] 61. Spreading exports

[0048] 70 Material Boxes

[0049] 80 feeding units

[0050] 81. Material cutting shell

[0051] 811 Material feeding guide slope

[0052] 82 Feeding roller

[0053] 83 Material feeding grid

[0054] 84 Material feeding drive source

[0055] 90 Spreading Units

[0056] 91 Spreading scaffold

[0057] 92 Spreading Driver Source

[0058] 93 Spreading inlet

[0059] 941 First Gear

[0060] 942 Second Gear

[0061] 951 First Pulley

[0062] 952 Second Pulley

[0063] 953 Transmission Belt Detailed Implementation

[0064] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0065] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0066] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0067] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0068] This application relates to a bionic seeding hand disc 10 and an automatic dual-rotation bionic seeding device equipped with the bionic seeding hand disc 10. The automatic dual-rotation bionic seeding device is used in agricultural machinery such as plant protection drones and plant protection unmanned vehicles to realize the automatic seeding of materials such as seeds, fertilizers, and pesticides.

[0069] like Figure 1 and Figure 2 As shown, the biomimetic seeding hand disc 10 includes a rotating body 20 and multiple seeding blades 30 mounted on the outer periphery of the rotating body 20. The number of seeding blades 30 is at least two, and the specific number of seeding blades 30 is determined according to actual needs. Figures 1 to 5As shown, each dispersing blade 30 includes a blade body 40 and several ribs 50 that protrude upwards from the top surface of the blade body 40. The number of ribs 50 is determined according to actual needs. The blade body 40 is a spatial curved surface structure, which means that the blade body 40 is a spatial curved surface sheet. The outer edge of the blade body 40 includes an inner inclined arc edge 41, a first connecting arc edge 43, an outer inclined arc edge 42, and a second connecting arc edge 44 connected end to end. The inner inclined arc edge 41 and the outer inclined arc edge 42 are distributed inward and outward along the radial direction of the rotating body 20. The first connecting arc edge 43 connects one end of the inner inclined arc edge 41 and one end of the outer inclined arc edge 42. The second connecting arc edge 44 connects the other end of the inner inclined arc edge 41 and the other end of the outer inclined arc edge 42.

[0070] In particular, such as Figures 1 to 5 As shown, among the four outer edges of the blade body 40, the inner inclined arc edge 41, the first connecting arc edge 43 and the outer inclined arc edge 42 are all inclined arc edges that bend downwards from one end to the other. The second connecting arc edge 44 is a horizontal arc edge that bends and extends in the horizontal plane, and the first connecting arc edge 43 is higher than the second connecting arc edge 44 as a whole. Specifically: the inner end of the first connecting arc edge 43 is higher than its outer end, and the first connecting arc edge 43 extends obliquely downward from its inner end toward its outer end; the inner inclined arc edge 41 connects between the inner end of the first connecting arc edge 43 and the inner end of the second connecting arc edge 44. Since the inner end of the first connecting arc edge 43 is higher than the inner end of the second connecting arc edge 44, the inner inclined arc edge 41 extends obliquely downward from the inner end of the first connecting arc edge 43 toward the inner end of the second connecting arc edge 44; the outer inclined arc edge 42 connects between the outer end of the first connecting arc edge 43 and the outer end of the second connecting arc edge 44. Since the outer end of the first connecting arc edge 43 is higher than the outer end of the second connecting arc edge 44, the outer inclined arc edge 42 extends obliquely downward from the outer end of the first connecting arc edge 43 toward the outer end of the second connecting arc edge 44. Thus, the blade body 40, formed by the sequential connection of the inner inclined arc edge 41, the first connecting arc edge 43, the outer inclined arc edge 42, and the second connecting arc edge 44, is a concave spatial curved surface structure. The concave portion of the blade body 40 is its central region. The blade body 40 has its highest point at the inner end of the first connecting arc edge 43, which is also the connection point between the first connecting arc edge 43 and the inner inclined arc edge 41. Furthermore, both the top and bottom surfaces of the blade body 40 are spatial curved surfaces extending obliquely downwards from the first connecting arc edge 43 toward the second connecting arc edge 44.

[0071] Furthermore, such as Figures 2 to 5As shown, several rib sections 50 are arranged side by side along the direction from the first connecting arc edge 43 to the second connecting arc edge 44, and the width direction of the rib sections 50 is also in the direction from the first connecting arc edge 43 to the second connecting arc edge 44. Several dispersing channels 60 are formed between the rib sections 50 and the top surface of the blade body 40. The dispersing channels 60 are distributed on both sides of the rib sections 50 along the width direction of the rib sections 50, that is, there is a dispersing channel 60 between two adjacent rib sections 50, and there is also a dispersing channel 60 on the side of the rib section 50 closest to the first connecting arc edge 43 and on the side of the rib section 50 closest to the second connecting arc edge 44. The outer end of each dispersing channel 60 is a dispersing outlet 61 facing the outward inclined arc edge 42. Based on the spatial curved surface structure of the blade body 40, several rib sections 50 and several spraying channels 60 are distributed in a stepped manner in their respective arrangement directions, that is, the several rib sections 50 and several spraying channels 60 are distributed from high to low along the direction from the first connecting arc edge 43 toward the second connecting arc edge 44.

[0072] Furthermore, both the musculoskeletal portion 50 and the dissemination channel 60 are curved and extended. Specifically: as follows: Figure 3 and Figure 4 As shown, the musculoskeletal part 50 bends downwards from the inner inclined arc edge 41 to the outer inclined arc edge 42, and bends along the rotation direction of the bionic distributing hand disc 10. The distributing channel 60 also bends downwards from the inner inclined arc edge 41 to the outer inclined arc edge 42, and bends along the rotation direction of the bionic distributing hand disc 10. Therefore, the bending directions of both the musculoskeletal part 50 and the distributing channel 60 are consistent with the rotation direction of the bionic distributing hand disc 10. For example... Figure 2 In the illustrated embodiment: when the bionic seeding hand disc 10 rotates counterclockwise during seeding operations, the ribs 50 and seeding channels 60 on the top surface of each seeding blade 30 in the bionic seeding hand disc 10 all bend and extend in a counterclockwise direction. Alternatively, when the bionic seeding hand disc 10 rotates clockwise during seeding operations, the ribs 50 and seeding channels 60 on the top surface of each seeding blade 30 in the bionic seeding hand disc 10 all bend and extend in a clockwise direction.

[0073] The present invention also provides an automatic dual-spinning bionic dispersing device, such as... Figures 6 to 9As shown, the automatic dual-rotation bionic spreading device includes a material box 70, a feeding unit 80, and a spreading unit 90 arranged sequentially from top to bottom. The material box 70 is used to hold materials such as seeds, fertilizers, and pesticides. The feeding unit 80 includes a feeding shell 81 fixed to the material box 70, a feeding roller 82 rotatably supported in the feeding shell 81, and a feeding drive source 84 that is drively connected to the feeding roller 82. The outer periphery of the feeding roller 82 is provided with several feeding slots 83, and the lower opening of the material box 70 communicates with the feeding slots 83. The spreading unit 90 includes a spreading bracket 91 fixed to the feeding housing 81, a spreading drive source 92, a spreading transmission mechanism, and two bionic spreading hand discs 10. The rotating bodies 20 of the two bionic spreading hand discs 10 are rotatably supported in the spreading bracket 91. The spreading blades 30 of the two bionic spreading hand discs 10 are distributed on the lower side of the spreading bracket 91. A spreading inlet 93 is provided on the spreading bracket 91. The feeding grid 83 is connected to the spreading channels 60 on the two bionic spreading hand discs 10 through the spreading inlet 93. The spreading drive source 92 is connected to the rotating bodies 20 of the two bionic spreading hand discs 10 through the spreading transmission mechanism.

[0074] When the automatic dual-rotation bionic spreading device performs spreading operations, the material in the material box 70 falls into the feeding slot 83 of the feeding roller 82 under the action of gravity. The feeding drive source 84 drives the feeding roller 82 to rotate along the horizontal axis, causing the feeding slot 83 distributed on the upper side to rotate downward, realizing the feeding of the material inside. The material falls into the spreading channel 60 of the two bionic spreading hand discs 10 through the spreading inlet 93. The spreading drive source 92 is activated, and the spreading drive source 92 drives the rotating body 20 of the two bionic spreading hand discs 10 to rotate in opposite directions through the spreading transmission mechanism; for example: Figure 7 In the embodiment shown, the spreading drive source 92 drives the left bionic spreading hand disc 10 to rotate clockwise and the right bionic spreading hand disc 10 to rotate counterclockwise through the spreading transmission mechanism; in this way, the material in the spreading channel 60 is thrown out from the spreading outlet 61 under the action of centrifugal force, realizing the automatic spreading of the material.

[0075] The bionic spreading hand disc 10 and the automatic double-rotating bionic spreading device involved in this application have the following advantages.

[0076] 1. The spreading blade 30 has a concave spatial curved surface structure, and several spreading channels 60 are formed by setting several ribs 50. Both the ribs 50 and the spreading channels 60 are curved and extended in their respective rotation directions. This can imitate the palm and finger posture of a person when spreading materials, which is more in line with the spreading habit of spreading materials to the left and right sides of the field ridge, and effectively improves the spreading uniformity.

[0077] 2. The curved and extended rib section 50 forms a biomimetic human hand shape on the spreading leaf 30, which better improves the uniformity of spreading.

[0078] 3. The two bionic spreading hand discs 10 in the automatic double-rotation bionic spreading device rotate in opposite directions. The two bionic spreading hand discs 10 spread materials to different sides of the automatic double-rotation bionic spreading device, which can increase the spreading range and improve the spreading efficiency.

[0079] 4. The automatic dual-rotation bionic spreading device has no local rotation structure during the spreading operation, reducing the impact on the balance of the plant protection drone.

[0080] 5. The bionic seeding hand disc 10 has a simple structure. Compared with jet seeders, this application is lighter and consumes less energy, making it more suitable for long-term continuous seeding operations. Moreover, it does not generate much noise during the seeding process, thus avoiding limitations in its use.

[0081] Furthermore, in the biomimetic seeding handpiece 10, there are 4 to 6 seeding leaves 30, and each seeding leaf 30 has 3 to 4 ribs 50. For example: Figure 2 In the illustrated embodiment, there are five dispersing blades 30, each with three ribs 50. Furthermore, adjacent dispersing blades 30 are partially stacked, with a portion of one dispersing blade 30 at its first connecting arc edge 43 positioned above a portion of another dispersing blade 30 at its second connecting arc edge 44, making the overall structure more compact. Additionally, the curvature of the ribs 50 on each dispersing blade 30 can be uniform to improve dispersing evenness.

[0082] Furthermore, such as Figure 4 and Figure 5 As shown, the width of the rib section 50 gradually decreases along the direction away from the top surface of the blade body 40, so the cross-section of the rib section 50 can be trapezoidal or triangular. Thus, both sides of the rib section 50 in the width direction have material drop guide ramps 51, which extend obliquely downwards from the top of the rib section 50 to the spreading channel 60. With this configuration, when some material falling from the feeding unit 80 falls onto the rib section 50 through the spreading inlet 93, the material slides down the material drop guide ramps 51 of the rib section 50 into the spreading channel 60, ensuring that all the material falls into the spreading channel 60 and is then ejected through the spreading channel 60.

[0083] Preferably, such as Figure 4 As shown, the lower ends of the material guide slopes 51 of several rib sections 50 overlap at the inner inclined arc edge 41. The inner end of the spreading channel 60 formed between two adjacent rib sections 50 is separated from the inner inclined arc edge 41 of the blade body 40 by the overlapping portion of the inner ends of the material guide slopes 51 of these two rib sections 50. This prevents the material in the spreading channel 60 from moving to the inner inclined arc edge 41 of the blade body 40 during the spreading process, thereby preventing the material from entering the spreading transmission mechanism.

[0084] Furthermore, such as Figure 8 As shown, the feeding drive source 84 is a motor, integrated with the feeding roller 82 as a feeding module. The feeding module is integrally and detachably mounted on the feeding housing 81 along the axial direction of the feeding roller 82. This allows for easy replacement of different models of the feeding drive source 84 and feeding roller 82, thereby adjusting the feeding flow rate. Additionally, the feeding housing 81 has a feeding guide slope 811 on one side of the feeding roller 82 along the rotation direction of the feeding roller 82, with the lower end of the feeding guide slope 811 extending to the spreading inlet 93. For example: Figure 8 In the embodiment shown, the feeding roller 82 rotates clockwise, and the feeding housing 81 is provided with a feeding guide slope 811 on the clockwise side of the feeding roller 82 to guide the material to slide down to the spreading inlet 93.

[0085] Furthermore, the seeding drive source 92 is a motor. Adjusting the output of the seeding drive source 92 regulates the rotational speed of the two biomimetic seeding hand discs 10, thereby adjusting the seeding flow rate. The seeding transmission mechanism can employ gear mechanisms, synchronous belt pulley mechanisms, etc. For example: Figure 10 As shown, the dispersing transmission mechanism includes a first gear 941 and a second gear 942 respectively fixed to the outer periphery of the rotating bodies 20 of the two biomimetic dispersing hand discs 10. The first gear 941 and the second gear 942 mesh with each other, and the dispersing drive source 92 is connected to either the first gear 941 or the second gear 942. For example: Figure 11 As shown, the seeding drive source 92 is a motor, and the seeding transmission mechanism includes a first pulley 951 and a second pulley 952 respectively fixed on the outer periphery of the rotating body 20 of the two bionic seeding hand discs 10, and a transmission belt 953 cross-connected to the outer periphery of the first pulley 951 and the second pulley 952. The seeding drive source 92 is connected to the first pulley 951 or the second pulley 952. The cross arrangement of the transmission belt 953 makes the rotation directions of the first pulley 951 and the second pulley 952 opposite, thereby making the rotation directions of the two bionic seeding hand discs 10 opposite.

[0086] Furthermore, such as Figure 8 As shown, the seeding inlet 93 begins at the middle position of the seeding support 91, and the rotating bodies 20 of the two biomimetic seeding hand discs 10 are symmetrically distributed on the outer side of the seeding inlet 93, but close to it. Furthermore, as... Figure 9 As shown, the spreading support 91 is inclined relative to the horizontal plane, and the inclination angle of the spreading support 91 relative to the horizontal plane is 10° to 25°. This makes the two bionic spreading hand discs 10 also inclined relative to the horizontal plane, and the inclination angle is also 10° to 25°, which better improves the spreading uniformity.

[0087] In summary, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0088] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A biomimetic seeding hand disc, comprising a rotating body (20) and a plurality of seeding blades (30) mounted on the outer periphery of the rotating body (20), characterized in that: Each of the aforementioned seeding leaves (30) includes a leaf body (40) and several ribs (50) that protrude upward from the top surface of the leaf body (40); The outer edge of the blade body (40) includes an inner inclined arc edge (41) and an outer inclined arc edge (42) distributed radially inward and outward along the rotating body (20), and a first connecting arc edge (43) and a second connecting arc edge (44) respectively connecting the two ends of the inner inclined arc edge (41) and the outer inclined arc edge (42). The first connecting arc edge (43) is an inclined arc edge that bends downward with its inner end higher than its outer end. The second connecting arc edge (44) is a horizontal arc edge that bends and extends in the horizontal plane. The first connecting arc edge (43) is higher than the second connecting arc edge (44) in the whole. The blade body (40) formed by the inner inclined arc edge (41), the first connecting arc edge (43), the outer inclined arc edge (42) and the second connecting arc edge (44) connected in sequence is a concave spatial curved surface structure. Several ribs (50) are arranged side by side along the first connecting arc edge (43) toward the second connecting arc edge (44). The ribs (50) bend downward from the inner inclined arc edge (41) to the outer inclined arc edge (42). Several dispersing channels (60) are formed between the ribs (50) and the top surface of the blade body (40). The dispersing channels (60) are inclined arc-shaped channels that bend downward from the inside to the outside and have a dispersing outlet (61) at the outer end facing the outer inclined arc edge (42). The bending direction of the ribs (50) and the bending direction of the dispersing channels (60) are consistent with the rotation direction of the bionic dispersing hand disc (10).

2. The bionic dispensing hand disc according to claim 1, characterized in that: The width of the rib section (50) gradually decreases along the direction away from the top surface of the blade body (40), so that both sides of the rib section (50) in the width direction have material drop guide slopes (51), and the material drop guide slopes (51) extend obliquely downward from the top of the rib section (50) to the spreading channel (60).

3. The biomimetic dispensing hand disc according to claim 2, characterized in that: The lower ends of the material guide slopes (51) of several of the aforementioned rib sections (50) overlap each other at the inner inclined arc edge (41).

4. The biomimetic dispensing hand disc according to claim 1, characterized in that: There are 4 to 6 seeding leaves (30), and each seeding leaf (30) has 3 to 4 tendons (50).

5. The bionic sowing hand disc according to claim 1, characterized in that: Two adjacent spreading blades (30) are stacked one on top of the other, with a portion of one spreading blade (30) at its first connecting arc edge (43) positioned above a portion of the other spreading blade (30) at its second connecting arc edge (44).

6. An automatic dual-spinning bionic spreading device, characterized in that: It includes a material box (70), a feeding unit (80) and a spreading unit (90) arranged from top to bottom; The feeding unit (80) includes a feeding shell (81) fixed to the material box (70), a feeding roller (82) rotatably supported in the feeding shell (81), and a feeding drive source (84) connected to the feeding roller (82). The outer periphery of the feeding roller (82) is provided with several feeding slots (83), and the lower opening of the material box (70) is connected to the feeding slots (83). The spreading unit (90) includes a spreading bracket (91) fixed to the feeding shell (81), a spreading drive source (92), a spreading transmission mechanism, and two bionic spreading hand discs (10) as described in any one of claims 1-5. The rotating bodies (20) of the two bionic spreading hand discs (10) are rotatably supported in the spreading bracket (91), and the spreading blades (30) of the two bionic spreading hand discs (10) are distributed on the spreading bracket (91). On the lower side of 91), the spreading support (91) is provided with a spreading inlet (93). The discharge grid (83) is connected to the spreading channels (60) on the two bionic spreading hand discs (10) through the spreading inlet (93). The spreading drive source (92) is connected to the rotating body (20) of the two bionic spreading hand discs (10) through the spreading transmission mechanism and drives the rotating body (20) of the two bionic spreading hand discs (10) to rotate in opposite directions.

7. The automatic dual-spinning bionic spreading device according to claim 6, characterized in that: The feeding drive source (84) is a motor and is integrated with the feeding roller (82) into a feeding module. The feeding module is integrally and pluggably installed on the feeding housing (81) along the axial direction of the feeding roller (82).

8. The automatic dual-spinning bionic spreading device according to claim 6, characterized in that: The feeding shell (81) has a feeding guide slope (811) on one side of the feeding roller (82) along the rotation direction of the feeding roller (82), and the lower end of the feeding guide slope (811) extends to the spreading inlet (93).

9. The automatic dual-spinning bionic spreading device according to claim 6, characterized in that: The spreading drive source (92) is a motor, and the spreading transmission mechanism includes a first gear (941) and a second gear (942) respectively fixed on the outer periphery of the rotating body (20) of the two bionic spreading hand discs (10). The first gear (941) and the second gear (942) mesh with each other, and the spreading drive source (92) is connected to the first gear (941) or the second gear (942).

10. The automatic dual-spinning bionic spreading device according to claim 6, characterized in that: The spreading drive source (92) is a motor. The spreading transmission mechanism includes a first pulley (951) and a second pulley (952) respectively fixed on the outer periphery of the rotating body (20) of the two bionic spreading hand discs (10), and a transmission belt (953) cross-connected to the outer periphery of the first pulley (951) and the second pulley (952). The spreading drive source (92) is connected to the first pulley (951) or the second pulley (952).

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