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

Abstract

The invention 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, and each sowing blade comprises a blade body of a downwards-concave space curved surface structure and a plurality of rib parts; the outer edge of the blade body comprises an inner side inclined arc edge, an outer side inclined arc edge, a first connecting arc edge and a second connecting arc edge, the first connecting arc edge is an inclined arc edge with the inner end higher than the outer end and obliquely bent and extended downwards, the second connecting arc edge is a horizontal arc edge bent and extended in the horizontal plane, and the first connecting arc edge is integrally higher than the second connecting arc edge; a plurality of spreading flow channels are formed between the plurality of rib parts and the top surface of the blade main body, the spreading flow channels are inclined arc-shaped flow channels which are bent and extend downwards from inside to outside, and the bending directions of the rib parts and the spreading flow channels are consistent with the rotating direction of the bionic spreading hand disc. The device can imitate the palm and finger postures of people in the material sowing process to conduct sowing operation, the sowing habit is better met, and the sowing uniformity is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical fields of plant protection drones, plant protection unmanned vehicles, etc., and particularly relates to a bionic seed sowing hand disc and an automatic double-rotation bionic sowing device equipped with the bionic seed sowing hand disc. Background Art

[0002] In plant protection unmanned devices such as plant protection drones and plant protection unmanned vehicles used for agricultural and forestry plant protection operations, sowing devices are configured to sow materials such as seeds, fertilizers, and pesticides, so as to achieve the mechanization, intelligence, and modernization of agriculture.

[0003] Currently, the sowing devices mainly include single-rotation sowers, auger feeding single-rotation sowers, and jet sowers.

[0004] The single-rotation sower usually uses a single-rotor drone or a single-rotation disc mechanical structure to achieve the sowing function. The single-rotation sower uses the rotating rotor or rotating disc to generate centrifugal force to throw the material out of the container and spread it in the target area; for example, an adjustable sowing system for drone sowing disclosed in the Chinese invention patent application with the application number 201911403840.1. However, based on the centrifugal sowing method adopted by the single-rotation sower, it is easily affected by factors such as wind and the downward airflow of the rotor, resulting in uneven distribution of the sown material, and it is very easy to have the phenomena of repeated sowing or missed sowing, affecting the accuracy of sowing.

[0005] The auger feeding single-rotation sower adopts an auger feeder and a single-rotation sower, such as a sowing mechanism disclosed in the Chinese utility model patent with the application number 202421091590.9. However, since there is a gap between the auger and the inner wall of the housing, the material in this gap is easily squeezed; at the same time, since it also adopts a single-rotation sowing structure, there is also the problem of uneven sowing; in addition, material accumulation or blockage of the auger discharge port is likely to occur during the sowing process, further affecting the uniformity of sowing.

[0006] The jet sower realizes the sowing function based on the jet principle in fluid mechanics, and it is equipped with components such as a material conveyor, an air pump, a nozzle, and a spray nozzle; for example, a portable chemical fertilizer sower disclosed in the Chinese utility model patent with the application number 201220714969.1. However, the jet sower needs to generate high-speed airflow through a blower or a high-pressure air pump, which consumes a large amount of power, resulting in a significant increase in energy consumption. Due to the high energy consumption of the jet sower, its endurance ability is limited and it is not suitable for long-term continuous operation. In addition, the jet sower generates relatively large noise during operation, especially during the high-speed airflow jetting process. These noises cause certain noise pollution to the operator and the surrounding environment, and also limit the use of the jet sower, such as it cannot be used for sowing operations in areas near residential areas. Summary of the Invention

[0007] In view of the disadvantages of the above-mentioned prior art, the object of the present invention is to provide a bionic sowing hand disc, which can effectively improve the sowing uniformity, and has low energy consumption and low noise.

[0008] To achieve the above object, the present invention provides a bionic sowing hand disc, including a rotating body and a plurality of sowing blades installed on the outer periphery of the rotating body. Each sowing blade includes a blade body and several rib parts 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 inside and outside along the radial direction of the rotating body, and a first connecting arc edge and a second connecting arc edge respectively connecting between the two ends of the inner inclined arc edge and the outer inclined arc edge. The first connecting arc edge is an inclined arc edge that bends obliquely downward with the inner end higher than the outer end, and the second connecting arc edge is a horizontal arc edge that bends and extends in the horizontal plane. The first connecting arc edge is higher than the second connecting arc edge as a whole. The blade body surrounded by the inner inclined arc edge, the first connecting arc edge, the outer inclined arc edge and the second connecting arc edge in sequence is a concave space curved surface structure.

[0010] Several rib parts are arranged side by side along the direction from the first connecting arc edge towards the second connecting arc edge. The rib parts bend obliquely downward from the inner inclined arc edge to the outer inclined arc edge. Several channels for sowing flow are formed between the rib parts and the top surface of the blade body. The sowing flow channels are inclined arc-shaped channels that bend obliquely downward from the inside to the outside, and the outer ends have sowing outlets facing the outer inclined arc edge. The bending direction of the rib parts and the bending direction of the sowing flow channels are both consistent with the rotation direction of the bionic sowing hand disc.

[0011] A preferred solution of the bionic sowing hand disc is that the width of the rib part gradually decreases along the direction away from the top surface of the blade body, so that both sides in the width direction of the rib part have blanking guiding inclined surfaces, and the blanking guiding inclined surfaces extend obliquely downward from the top of the rib part to the sowing flow channels.

[0012] A preferred solution of the bionic sowing hand disc is that the lower ends of the blanking guiding inclined surfaces of several rib parts overlap each other at the inner inclined arc edge.

[0013] A preferred solution of the bionic sowing hand disc is that there are 4-6 sowing blades, and each sowing blade has 3-4 rib parts.

[0014] A preferred solution of the bionic sowing hand disc is that two adjacent sowing blades are partially overlapped up and down, and a part of one sowing blade at its first connecting arc edge is arranged above a part of the other sowing blade at its second connecting arc edge.

[0015] The present invention also provides an automatic double - rotation bionic spreading device, which includes a material box, a blanking unit, and a spreading unit arranged in sequence from top to bottom;

[0016] The blanking unit includes a blanking outer shell fixed to the material box, a blanking roller rotatably supported in the blanking outer shell, and a blanking driving source drivingly connected to the blanking roller. A plurality of blanking ports are provided on the outer circumference of the blanking roller, and the lower opening of the material box communicates with the blanking ports;

[0017] The spreading unit includes a spreading bracket fixed to the blanking outer shell, a spreading driving 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 feed port is provided on the spreading bracket, and the blanking ports communicate with the spreading channels on the two bionic spreading hand discs through the spreading feed port. The spreading driving source is drivingly 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] A preferred solution of the automatic double - rotation bionic spreading device is that the blanking driving source is a motor and is integrated with the blanking roller into a blanking module, and the blanking module is integrally installed in the blanking outer shell in an axially plug - and - play manner along the blanking roller.

[0019] A preferred solution of the automatic double - rotation bionic spreading device is that the blanking outer shell is provided with a blanking guiding inclined surface on one side of the blanking roller along the rotation direction of the blanking roller, and the lower end of the blanking guiding inclined surface extends to the spreading feed port.

[0020] A preferred solution of the automatic double - rotation bionic spreading device is that the spreading driving source is a motor, and the spreading transmission mechanism includes a first gear and a second gear respectively fixed to the outer circumferences of the rotating bodies of the two bionic spreading hand discs. The first gear and the second gear are meshed with each other, and the spreading driving source is connected to the first gear or the second gear.

[0021] A preferred solution of the automatic double - rotation bionic spreading device is that the spreading driving source is a motor, and the spreading transmission mechanism includes a first belt pulley and a second belt pulley respectively fixed to the outer circumferences of the rotating bodies of the two bionic spreading hand discs, and a transmission belt cross - connected to the outer circumferences of the first belt pulley and the second belt pulley. The spreading driving source is connected to the first belt pulley or the second belt pulley.

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

[0023] This application sets the sowing blade as a concave spatial curved surface structure, and forms several sowing channels by arranging several rib parts, thereby imitating the palm and finger postures of people when sowing materials to perform sowing operations, which is more in line with the sowing habit of sowing materials from the field to the left and right sides of the ridge, effectively improving the sowing uniformity. At the same time, the bionic sowing hand disc has a simple structure, light weight, and low energy consumption, and is well applicable to long-term continuous sowing operations; and it will not generate large noise during the sowing process, avoiding limited use. Description of the Drawings

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

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

[0026] Figure 3 It is the front view of a single sowing blade in the bionic sowing hand disc of this application.

[0027] Figure 4 It is the top view of a single sowing blade in the bionic sowing hand disc of this application.

[0028] Figure 5 It is Figure 4 The sectional view taken along the A-A direction of

[0029] Figure 6 It is the front view of the automatic double-rotation bionic sowing device of this application.

[0030] Figure 7 It is the side view of the automatic double-rotation bionic sowing device of this application.

[0031] Figure 8 It is Figure 6 The structural schematic diagram of the automatic double-rotation bionic sowing device of this application from another perspective after omitting part of the blanking outer shell.

[0032] Figure 9 It is Figure 8 The side view of

[0033] Figure 10 It is the structural schematic diagram of Embodiment 1 of the sowing transmission mechanism in the automatic double-rotation bionic sowing device of this application.

[0034] Figure 11 It is the structural schematic diagram of Embodiment 2 of the sowing transmission mechanism in the automatic double-rotation bionic sowing device of this application.

[0035] Element Number Description

[0036] 10 Bionic sowing hand disc

[0037] 20 Rotating body

[0038] 30 Sowing blade

[0039] 40 Blade body

[0040] 41 Inner inclined arc edge

[0041] 42 Outer inclined arc edge

[0042] 43 First connecting arc edge

[0043] 44 Second connecting arc edge

[0044] 50 Rib part

[0045] 51 Blanking guiding inclined plane

[0046] 60 Spreading runner

[0047] 61 Spreading outlet

[0048] 70 Material box

[0049] 80 Blanking unit

[0050] 81 Blanking housing

[0051] 811 Blanking guiding inclined plane

[0052] 82 Blanking roller

[0053] 83 Blanking slot

[0054] 84 Blanking driving source

[0055] 90 Spreading unit

[0056] 91 Spreading bracket

[0057] 92 Spreading driving source

[0058] 93 Spreading feed inlet

[0059] 941 First gear

[0060] 942 Second gear

[0061] 951 First pulley

[0062] 952 Second pulley

[0063] 953 Transmission belt Specific embodiments

[0064] The following specific embodiments illustrate the implementation manners 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 noted that the structures, proportions, sizes, etc. depicted in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have any technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present invention can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope in which the present invention can be implemented.

[0066] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element present at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it can also be indirectly connected to the other element through an intermediate element.

[0067] In addition, the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0068] This application relates to a bionic seed-sowing hand disc 10 and an automatic double-rotation bionic seed-sowing device equipped with the bionic seed-sowing hand disc 10. The automatic double-rotation bionic seed-sowing device is used for agricultural implements such as plant protection unmanned aerial vehicles and plant protection unmanned vehicles to realize the automatic sowing of materials such as seeds, fertilizers, and pesticides.

[0069] As Figure 1 and Figure 2 shown, the bionic seed-sowing hand disc 10 includes a rotating body 20 and a plurality of sowing blades 30 installed on the outer periphery of the rotating body 20. The number of sowing blades 30 is at least two or more, and the specific number of sowing blades 30 is determined according to actual needs. As Figures 1 to 5As shown, each sowing blade 30 includes a blade body 40 and several rib portions 50 that protrude upward from the top surface of the blade body 40. The number of rib portions 50 is also determined according to actual needs. The blade body 40 is a spatial curved surface structure, so the blade body 40 is a spatial curved surface thin 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 that are connected end to end in sequence. Among them, the inner inclined arc edge 41 and the outer inclined arc edge 42 are distributed inside and outside along the radial direction of the rotating body 20. The first connecting arc edge 43 is connected between one end of the inner inclined arc edge 41 and one end of the outer inclined arc edge 42, and the second connecting arc edge 44 is connected between the other end of the inner inclined arc edge 41 and the other end of the outer inclined arc edge 42.

[0070] Specifically, as Figures 1 to 5 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 obliquely downward from one end to the other end. 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 entirely higher than the second connecting arc edge 44. Specifically: the inner end of the first connecting arc edge 43 is higher than its outer end, and the first connecting arc edge 43 bends obliquely downward from its inner end toward its outer end; the inner inclined arc edge 41 is connected 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 bends 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 is connected 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 bends obliquely downward from the outer end of the first connecting arc edge 43 toward the outer end of the second connecting arc edge 44. In this way, the blade body 40 surrounded 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 in sequence is a concave spatial curved surface structure. The concave part of the blade body 40 is its middle region. The blade body 40 has a highest point at the inner end of the first connecting arc edge 43, and the inner end of the first connecting arc edge 43 is also the connecting part of the first connecting arc edge 43 and the inner inclined arc edge 41. In addition, both the top surface and the bottom surface of the blade body 40 are spatial curved surfaces that extend obliquely downward from the first connecting arc edge 43 toward the second connecting arc edge 44.

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

[0072] Furthermore, both the rib parts 50 and the sowing channels 60 are bent and extended. Specifically, as Figure 3 and Figure 4 shown in the figure, the rib part 50 is bent and extended obliquely downward from the inner inclined arc edge 41 to the outer inclined arc edge 42 and is bent and extended along the rotation direction of the bionic sowing hand disc 10. The sowing channel 60 is also bent and extended obliquely downward from the inner inclined arc edge 41 to the outer inclined arc edge 42 and is bent and extended along the rotation direction of the bionic sowing hand disc 10. Then the bending directions of the rib part 50 and the sowing channel 60 are both consistent with the rotation direction of the bionic sowing hand disc 10. For example, Figure 2 in the embodiment shown in the figure: when the bionic sowing hand disc 10 is performing sowing operations, it rotates counterclockwise, then the rib parts 50 and the sowing channels 60 on the top surface of each sowing blade 30 in the bionic sowing hand disc 10 are both bent and extended counterclockwise. Another example: when the bionic sowing hand disc 10 is performing sowing operations, it rotates clockwise, then the rib parts 50 and the sowing channels 60 on the top surface of each sowing blade 30 in the bionic sowing hand disc 10 are both bent and extended clockwise.

[0073] The present invention also provides an automatic double-rotation bionic sowing device, as Figures 6 to 9As shown in the figure, the automatic double-rotation bionic sowing device includes a material box 70, a blanking unit 80, and a sowing unit 90, which are arranged in sequence from top to bottom. The material box 70 is used to place materials such as seeds, fertilizers, and pesticides. The blanking unit 80 includes a blanking outer shell 81 fixed to the material box 70, a blanking roller 82 rotatably supported in the blanking outer shell 81, and a blanking drive source 84 drivingly connected to the blanking roller 82. A plurality of blanking ports 83 are provided on the outer circumference of the blanking roller 82, and the lower end opening of the material box 70 is communicated with the blanking ports 83. The sowing unit 90 includes a sowing bracket 91 fixed to the blanking outer shell 81, a sowing drive source 92, a sowing transmission mechanism, and two bionic sowing hand discs 10. The rotating bodies 20 of the two bionic sowing hand discs 10 are rotatably supported in the sowing bracket 91. The sowing blades 30 of the two bionic sowing hand discs 10 are all distributed on the lower side of the sowing bracket 91. A sowing feed port 93 is provided on the sowing bracket 91. The blanking ports 83 are communicated with the sowing channels 60 on the two bionic sowing hand discs 10 through the sowing feed port 93. The sowing drive source 92 is drivingly connected to the rotating bodies 20 of the two bionic sowing hand discs 10 through the sowing transmission mechanism.

[0074] When the automatic double-rotation bionic sowing device performs sowing operations, the materials in the material box 70 fall into the blanking ports 83 of the blanking roller 82 under the action of gravity. The blanking drive source 84 drives the blanking roller 82 to rotate along the horizontal axis, driving the blanking ports 83 on the upper side to rotate downward, so as to realize the blanking of the materials therein. The materials fall into the sowing channels 60 of the two bionic sowing hand discs 10 through the sowing feed port 93. The sowing drive source 92 operates, and the sowing drive source 92 drives the rotating bodies 20 of the two bionic sowing hand discs 10 to rotate in the opposite direction through the sowing transmission mechanism; for example: Figure 7 In the shown embodiment, the sowing drive source 92 drives the left bionic sowing hand disc 10 to rotate clockwise and the right bionic sowing hand disc 10 to rotate counterclockwise through the sowing transmission mechanism; thus, the materials in the sowing channels 60 are thrown out from the sowing outlet 61 under the action of centrifugal force, realizing the automatic sowing of the materials.

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

[0076] 1. The sowing blade 30 is a concave space curved surface structure, and several rib parts 50 are arranged to form several sowing channels 60. Both the rib parts 50 and the sowing channels 60 are bent and extended along their respective rotation directions. Therefore, it can imitate the palm and finger postures of people when sowing materials to perform sowing operations, which is more in line with the sowing habit of sowing materials to the left and right sides of the field ridges in the field, effectively improving the sowing uniformity.

[0077] 2. The bent and extended rib parts 50 form a bionic human hand shape on the sowing blade 30, better improving the sowing uniformity.

[0078] 3. In the reverse rotation structure of the two bionic sowing hand discs 10 in the automatic double-rotation bionic sowing device, the two bionic sowing hand discs 10 sow materials to different sides of the automatic double-rotation bionic sowing device, which can increase the sowing operation range and improve the sowing operation efficiency.

[0079] 4. The automatic double-rotation bionic sowing device has no local self-rotation structure during sowing operations, reducing the impact on the balance of the plant protection UAV itself.

[0080] 5. The structure of the bionic sowing hand disc 10 is simple. Compared with the jet sower, the present application is light in weight and low in energy consumption, and is better suitable for long-term continuous sowing operations; and it will not generate large noise during sowing, avoiding limited use.

[0081] Furthermore, in the bionic sowing hand disc 10, there are 4 to 6 sowing blades 30, and there are 3 to 4 rib parts 50 on each sowing blade 30. For example: Figure 2 In the shown embodiment, there are 5 sowing blades 30, and there are 3 rib parts 50 on each sowing blade 30. In addition, adjacent two sowing blades 30 are partially overlapped up and down, and a part of one sowing blade 30 at its first connecting arc edge 43 is arranged above a part of the other sowing blade 30 at its second connecting arc edge 44, making the overall structure more compact. In addition, the bending degree of several rib parts 50 on each sowing blade 30 can be the same for each part, so as to better improve the sowing uniformity.

[0082] Furthermore, as Figure 4 and Figure 5 shown, the width of the rib part 50 gradually decreases along the direction away from the top surface of the blade body 40, so the cross-section of the rib part 50 can be trapezoidal or triangular. In this way, there are material falling guiding inclined surfaces 55 on both sides in the width direction of the rib part 50, and the material falling guiding inclined surfaces 55 extend obliquely downward from the top of the rib part 50 to the sowing flow channel 60. After being set like this, when part of the materials falling from the feeding unit 80 fall on the rib part 50 through the sowing feeding port 93, the materials slide down along the material falling guiding inclined surface 55 of the rib part 50 into the sowing flow channel 60, better enabling all the materials to fall into the sowing flow channel 60 and then being thrown out through the sowing flow channel 60.

[0083] Preferably, as Figure 4 shown, the lower ends of the material falling guiding inclined surfaces 55 of several rib parts 50 overlap each other at the inner inclined arc edge 41, so that the inner end of the sowing flow channel 60 between adjacent two rib parts 50 is separated from the inner inclined arc edge 41 of the blade body 40 through the overlapping part of the inner ends of the material falling guiding inclined surfaces 55 of these two rib parts 50, thus avoiding the materials in the sowing flow channel 60 from moving to the inner inclined arc edge 41 of the blade body 40 during sowing, and thus avoiding the materials from entering the sowing transmission mechanism.

[0084] Furthermore, as Figure 8 shown, the blanking drive source 84 is a motor and is integrated with the blanking roller 82 into a blanking module. The blanking module is integrally pluggable along the axial direction of the blanking roller 82 and is installed in the blanking housing 81. In this way, it is possible to conveniently replace the blanking drive source 84 and the blanking roller 82 of different models, thereby adjusting the blanking flow rate. In addition, the blanking housing 81 is provided with a blanking guiding inclined surface 811 on one side of the blanking roller 82 along the rotation direction of the blanking roller 82, and the lower end of the blanking guiding inclined surface 811 extends to the sowing feed port 93. For example: Figure 8 In the shown embodiment, the rotation direction of the blanking roller 82 is clockwise rotation. Then, the blanking housing 81 is provided with a blanking guiding inclined surface 811 on the clockwise side of the blanking roller 82 to guide the material to slide down to the sowing feed port 93.

[0085] Furthermore, the sowing drive source 92 is a motor, and the rotation speeds of the two bionic sowing hand discs 10 are adjusted by adjusting the output of the sowing drive source 92, thereby adjusting the sowing flow rate. The sowing transmission mechanism can adopt a gear mechanism, a synchronous belt pulley mechanism, etc. For example: As Figure 10 shown, the sowing 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 sowing hand discs 10. The first gear 941 and the second gear 942 are meshed with each other, and the sowing drive source 92 is connected to the first gear 941 or the second gear 942. Another example: As Figure 11 shown, the sowing drive source 92 is a motor. The sowing transmission mechanism includes a first belt pulley 951 and a second belt pulley 952 respectively fixed on the outer periphery of the rotating body 20 of the two bionic sowing hand discs 10, and a transmission belt 953 cross-connected on the outer peripheries of the first belt pulley 951 and the second belt pulley 952. The sowing drive source 92 is connected to the first belt pulley 951 or the second belt pulley 952. The cross arrangement of the transmission belt 953 makes the rotation directions of the first belt pulley 951 and the second belt pulley 952 opposite, so that the rotation directions of the two bionic sowing hand discs 10 are opposite.

[0086] Furthermore, as Figure 8 shown, the sowing feed port 93 starts at the middle position of the sowing bracket 91, and the rotating bodies 20 of the two bionic sowing hand discs 10 are symmetrically distributed outside the sowing feed port 93 but adjacent to the sowing feed port 93. In addition, as Figure 9 shown, the sowing bracket 91 is inclined relative to the horizontal plane, and the inclination angle of the sowing bracket 91 relative to the horizontal plane is 10° to 25°, so that the two bionic sowing hand discs 10 are also inclined relative to the horizontal plane as a whole and the inclination angle is also 10° to 25°, which can better improve the sowing uniformity.

[0087] In summary, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0088] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A bionic spreading hand plate, comprising a rotating body (20), and a plurality of spreading blades (30) mounted on the outer periphery of the rotating body (20), characterized in that: Each of the spreading blades (30) comprises a blade body (40) and a plurality of ribs (50) protruding upward from the top surface of the blade body (40); The outer edge of the blade body (40) comprises an inner inclined arc edge (41) and an outer inclined arc edge (42) which are radially distributed inward and outward along the rotating body (20), and a first connecting arc edge (43) and a second connecting arc edge (44) which are respectively connected between the two ends of the inner inclined arc edge (41) and the outer inclined arc edge (42), wherein the first connecting arc edge (43) is an inclined arc edge which is bent downward and extends with the inner end higher than the outer end, and the second connecting arc edge (44) is a horizontal arc edge which is bent and extends in a horizontal plane, and the first connecting arc edge (43) is higher than the second connecting arc edge (44) as a 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 in a direction from the first connecting arc edge (43) to the second connecting arc edge (44); the ribs (50) bend obliquely downward from the inner inclined arc edge (41) to the outer inclined arc edge (42); several spreading channels (60) are formed between the several ribs (50) and the top surface of the blade body (40); the spreading channels (60) are inclined arc-shaped channels that bend obliquely downward from the inside to the outside, and have a spreading outlet (61) at the outer end facing the outer inclined arc edge (42); the bending direction of the ribs (50) and the spreading channel (60) are consistent with the rotation direction of the bionic spreading hand plate (10).

2. The bionic spreading hand plate according to claim 1, characterized in that: The width of the rib part (50) gradually decreases in a direction away from the top surface of the blade body (40), so that both sides of the rib part (50) in the width direction have a material drop guiding inclined surface (55), and the material drop guiding inclined surface (55) extends obliquely downward from the top of the rib part (50) to the spreading flow channel (60).

3. The bionic spreading hand plate according to claim 2, characterized in that: The lower ends of the blanking guide inclined surfaces (55) of the plurality of rib parts (50) overlap each other at the inner inclined arc edge (41).

4. The bionic spreading hand plate according to claim 1, characterized in that: There are 4 to 6 spreading blades (30), and each of the spreading blades (30) has 3 to 4 tendon parts (50).

5. The bionic spreading hand plate according to claim 1, characterized in that: Two adjacent spreading blades (30) are partially stacked up and down, with a portion of one spreading blade (30) at its first connecting arc edge (43) being arranged above a portion of another spreading blade (30) at its second connecting arc edge (44).

6. An automatic double-rotation bionic spreading device, characterized in that: It comprises a material box (70), a material discharge unit (80) and a spreading unit (90) which are arranged in sequence from top to bottom; The material unloading unit (80) comprises a material unloading shell (81) fixed to a material box (70), a material unloading roller (82) rotatably supported in the material unloading shell (81), and a material unloading driving source (84) drivingly connected to the material unloading roller (82); a plurality of material unloading grid openings (83) are arranged on the outer periphery of the material unloading roller (82); and a lower end opening of the material box (70) is connected to the material unloading grid openings (83); The sowing unit (90) comprises a sowing support (91) fixed to a material discharging housing (81), a sowing drive source (92), a sowing transmission mechanism, and two bionic sowing hand plates (10) according to any one of claims 1 to 5, wherein the rotating bodies (20) of the two bionic sowing hand plates (10) are rotatably supported in the sowing support (91), and the sowing blades (30) of the two bionic sowing hand plates (10) are distributed on the sowing support ( The sowing support (91) is provided with a sowing feed port (93), the unloading grid opening (83) is connected to the sowing flow channels (60) on the two bionic sowing hand plates (10) through the sowing feed port (93), and the sowing drive source (92) is connected to the rotating bodies (20) of the two bionic sowing hand plates (10) through the sowing transmission mechanism, and drives the rotating bodies (20) of the two bionic sowing hand plates (10) to rotate in the opposite direction.

7. The automatic double-rotation bionic spreading device according to claim 6, characterized in that: The unloading drive source (84) is a motor and is integrated with the unloading roller (82) to form a unloading module. The unloading module is integrally installed in the unloading housing (81) in an axial direction of the unloading roller (82) in a pluggable manner.

8. The automatic double-rotation bionic spreading device according to claim 6, characterized in that: The material discharge shell (81) is provided with a material discharge guide inclined surface (811) on one side of the material discharge roller (82) along the rotation direction of the material discharge roller (82), and the lower end of the material discharge guide inclined surface (811) extends to the sowing feed port (93).

9. The automatic double-rotation bionic spreading device according to claim 6, characterized in that: The sowing drive source (92) is a motor, and the sowing transmission mechanism comprises a first gear (941) and a second gear (942) respectively fixed to the outer periphery of the rotating body (20) of two bionic sowing hand plates (10), the first gear (941) and the second gear (942) are meshed with each other, and the sowing drive source (92) is connected to the first gear (941) or the second gear (942).

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

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