Seed metering device and seed metering method for peanut breeding plots

Abstract

The invention relates to the technical field of peanut plot seed metering, in particular to a peanut breeding plot seed metering device and a seed metering method.The peanut breeding plot seed metering device comprises a supporting plate, a seed filling device, a seed metering device and a seed cleaning device, the seed filling device comprises a seed filling pipe and a seed filling cavity, the seed metering device comprises a seed metering cylinder, the interior of the seed metering cylinder is a negative pressure environment, and seed suction holes are formed in the seed metering cylinder; the seed suction hole moves to a seeding position from the seed filling cavity along with the seed metering cylinder, a hole blocking wheel is arranged at the seeding position, the outer surface of the hole blocking wheel is attached to the inner surface of the seed suction hole, the seed cleaning device comprises a seed cleaning plate and a seed cleaning bin, and the seed cleaning bin is arranged below the seed filling cavity. The negative pressure chamber is matched with the seed suction holes, so that seeds can be stably adsorbed, and the seed selection difficulty is reduced; the hole blocking wheel is adopted at the sowing position to block the negative pressure environment, so that seeds can be smoothly sown at the appointed position, and the structure is simple and reliable; redundant seeds are recycled through the seed cleaning device, so that the seeds in different plots can be prevented from being mixed, and the accuracy of plot test results is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of peanut plot seeding, in particular to a peanut seeding plot seeding device and a seeding method. Background Art

[0002] Peanut plot breeding refers to the selection or improvement of peanut varieties on a specific small field. This breeding method is usually used for experimental and research purposes so that environmental conditions can be controlled more accurately. my country's breeding test plot seeders are in the development stage. Some seeders are only in the research and development stage and have not yet been put into production. Strict operating standards have not been formed. Some breeding machinery is modified according to the field sowing machinery, which cannot adapt to the requirements of plot sowing operations and cannot meet the requirements of the development of peanut breeding machinery. In addition, my country's breeding core technology is lacking, manufacturing technology is lacking, and manufacturing materials are insufficient, resulting in the slow development of my country's breeding and sowing machinery. Summary of the invention

[0003] The present invention aims to solve the above problems and provides a peanut seeding plot seeding device and seeding method, the technical solutions adopted by the present invention are as follows: A seed metering device for a peanut planting plot comprises a support plate and a seed filling device, a seeding device and a seed cleaning device connected thereto, the seed filling device comprising a seed filling tube and a seed filling cavity, the seeding device comprising a seeding cylinder, the interior of the seeding cylinder is a negative pressure environment, a seed suction hole is arranged on the seeding cylinder, the diameter of the seed suction hole is smaller than the minimum outer diameter of the peanut seed, the seed suction hole moves from the seed filling cavity to a sowing position with the seeding cylinder, a hole blocking wheel is arranged at the sowing position, the hole blocking wheel is arranged in the seeding cylinder, and the outer surface of the hole blocking wheel is in contact with the inner surface of the seed suction hole, the seed cleaning device comprises a seed cleaning plate and a seed cleaning bin, the seed cleaning bin is arranged below the seed filling cavity, the seed cleaning plate is arranged between the seed filling cavity and the seed cleaning bin, and isolates the seed filling cavity and the seed cleaning bin from each other.

[0004] On the basis of the above scheme, the seed filling device also includes a seed filling cylinder and a seed filling plate. The seed filling plate is fixedly connected to the piston rod of the seed filling cylinder and slides radially in the seed filling tube. When the seed filling cylinder is in the extended position, the seed filling plate isolates the seed filling tube from the internal space of the seed filling cavity.

[0005] Preferably, the seeding device further comprises a seeding shaft, which is coaxially arranged with the seeding cylinder, and has ventilation holes arranged on the seeding shaft, and is connected with a negative pressure fan.

[0006] On the basis of the above scheme, the number of the seed suction holes is multiple and evenly distributed along the circumference of the seed discharging cylinder, and the number of the ventilation holes is multiple and evenly distributed along the circumference of the seed discharging shaft.

[0007] Preferably, the seed cleaning device further comprises a seed cleaning cylinder, the seed cleaning plate is arranged obliquely, and the upper end of the seed cleaning plate is fixedly connected to the piston rod of the seed cleaning cylinder.

[0008] Preferably, the seed cleaning device further comprises a seed cleaning cylinder, which is arranged below the seed cleaning bin, one end of which is connected to the seed cleaning bin, and the other end of which is connected to the seed recovery chamber.

[0009] Preferably, the hole-blocking wheel is arranged below the seeding shaft through a connecting frame, and the hole-blocking wheel is rotatably arranged on the connecting frame.

[0010] A method for seeding peanuts in a seeding plot, using the above-mentioned seeding device for a peanut seeding plot, comprises the following steps: S1. Place the peanut seeds to be sown into the seed filling tube; S2. The piston rod of the seed filling cylinder retracts, and the seed filling plate moves out of the seed filling tube, so that the seeds planted in the seed filling tube fall into the seed filling cavity; S3. The seed cylinder rotates, and the peanut seeds in the seed filling cavity are adsorbed to the seed suction hole, and rotate with the seed cylinder to the hole blocking wheel; S4. When the plugging wheel contacts the inner surface of the seed suction hole, the seed suction hole is isolated from the negative pressure environment inside the seed discharge cylinder, and the peanut seeds on the outer surface of the seed suction hole lose their adsorption force and fall into the soil; S5. After the sowing of a cell is completed, the seed cleaning plate is pulled outward, the seed filling chamber is connected to the seed cleaning bin, and the remaining seeds in the seed filling chamber are discharged into the seed cleaning bin; S6. The seeds in the seed cleaning bin are discharged into the recovery chamber through the seed cleaning cylinder.

[0011] The beneficial effects of the present invention are as follows: through the negative pressure chamber and the seed suction holes, peanut seeds of different shapes, sizes and appearance characteristics can be stably adsorbed, reducing the difficulty of seed selection; a hole-blocking wheel is used to block the negative pressure environment at the sowing position, so that the seeds can be smoothly sown at the designated position, and the structure is simple and reliable; the seed wheel is connected to the ground wheel transmission mechanism, and with the seed suction holes arranged at even intervals, the peanut seeds can be evenly sown during the movement of the seeder, meeting the requirements of the plot breeding test; after the sowing of the plot is completed, the excess seeds can be recovered by the seed cleaning device, which can prevent the mixing of seeds of different types and seeds in different plots, ensure the accuracy of the plot test results, and achieve full recovery of seeds to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : Schematic diagram of the structure of the present invention; Figure 2 : A cross-sectional view of the internal structure of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0014] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0015] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0016] like Figure 1 and Figure 2 As shown, a seed metering device for a peanut seed plot includes a support plate 11 and a seed filling device, a seed metering device and a seed cleaning device connected thereto.

[0017] The seed filling device includes a seed filling tube 21 and a seed filling cavity 23. The seed filling cavity 23 is formed by the side baffle 12, the circumference of the seed discharging cylinder 33 and the seed cleaning plate 42. The side baffle 12 is fixedly connected to the support plate 11 and the fixed connecting plate 13. The fixed connecting plate 13 is arranged on both sides of the axial direction of the seed discharging cylinder 13. The seed filling device also includes a seed filling cylinder 22 and a seed filling plate. The seed filling plate is fixedly connected to the piston rod of the seed filling cylinder 22 and slides radially in the seed filling tube 21. When the seed filling cylinder is in the extended position, the seed filling plate isolates the seed filling tube 21 from the internal space of the seed filling cavity 23. After the seed filling plate is extended, the seeds to be sown in the next plot can be input into the seed filling tube 21, saving operation time.

[0018] The seeding device includes a seeding barrel 33, which is rotatably arranged on the support plate 11 or the fixed connecting plate 13. Preferably, the seeding barrel 33 is connected to the ground wheel transmission mechanism of the seeding machine, so as to rotate synchronously with the ground wheel. The interior of the seeding barrel 33 is a negative pressure environment, and a seed suction hole 34 is arranged on the seeding barrel 33. The diameter of the seed suction hole 34 is smaller than the minimum outer diameter of the peanut seeds to prevent the peanut seeds from being sucked into the seeding barrel 33. The seed suction hole 34 moves from the seed filling chamber 23 to the sowing position with the seeding barrel 33. Preferably, the sowing position is at the bottom. A hole blocking wheel 35 is arranged at the sowing position. The hole blocking wheel 35 is arranged in the seeding barrel 33, and the outer surface of the hole blocking wheel 35 is in contact with the inner surface of the seed suction hole 34, and blocks the seed suction hole 34 and the negative pressure environment in the seeding barrel 33. Preferably, in order to reduce the friction between the hole-blocking wheel 35 and the seed cylinder 33 , the hole-blocking wheel 35 is arranged below the seed cylinder 31 through a connecting frame, and the hole-blocking wheel 35 is rotatably arranged on the connecting frame, so that the hole-blocking wheel 35 rotates together with the seed cylinder 33 .

[0019] There are multiple seed suction holes 34, which are evenly distributed along the circumference of the seed discharging cylinder 33 to meet the sowing needs and improve the sowing efficiency.

[0020] In order to form a negative pressure environment in the seeding cylinder 33, the seeding device further includes a seeding shaft 31, which is coaxially arranged with the seeding cylinder 33, and is provided with a vent 32. The seeding shaft 31 is connected to a negative pressure fan, and the negative pressure fan extracts the gas in the seeding cylinder 33 through the vent 32 and the seeding cylinder 33, so that a negative pressure chamber is formed in the seeding cylinder 33. There are multiple vents 32, which are evenly distributed along the circumference of the seeding shaft 31 to improve the ventilation effect.

[0021] The seed cleaning device includes a seed cleaning plate 42 and a seed cleaning bin 43. The seed cleaning bin 43 is arranged below the seed filling chamber 23. The seed cleaning plate 42 is arranged between the seed filling chamber 23 and the seed cleaning bin 43, and isolates the seed filling chamber 23 from the seed cleaning bin 43. The seed cleaning device also includes a seed cleaning cylinder 41. The seed cleaning plate 42 is arranged obliquely, and the upper end of the seed cleaning plate 42 is fixedly connected to the piston rod of the seed cleaning cylinder 41. The seed cleaning cylinder 41 drives the movement of the seed cleaning plate 42, thereby switching the connection and isolation between the seed filling chamber 23 and the seed cleaning bin 43. The seed cleaning device also includes a seed cleaning cylinder 44, which is arranged below the seed cleaning bin 43. One end of the seed cleaning cylinder 44 is connected to the seed cleaning bin 43, and the other end is connected to the seed recovery chamber. The seed cleaning cylinder 44 is a negative pressure environment, which is used to suck the seeds in the seed cleaning bin 43 into the seed recovery chamber.

[0022] A method for seeding peanuts in a seeding plot, using the above-mentioned seeding device for a peanut seeding plot, comprises the following steps: S1. The peanut seeds to be sown are placed into the seed filling tube 21; S2. The piston rod of the seed filling cylinder 22 retracts, and the seed filling plate moves out of the seed filling tube 21, so that the seeds in the seed filling tube 21 fall into the seed filling cavity 23; S3. The seed cylinder 33 rotates, and the peanut seeds in the seed filling chamber 23 are adsorbed to the seed suction hole 34, and rotate with the seed cylinder 33 to the plugging hole wheel 35; S4. When the plugging wheel 35 contacts the inner surface of the seed suction hole 34, the seed suction hole 34 is isolated from the negative pressure environment inside the seed discharge cylinder 33, and the peanut seeds on the outer surface of the seed suction hole 34 lose their adsorption force and fall into the soil under the action of gravity; S5. After completing the sowing of a cell, when the seeder moves to the interval position between the cells, the seed clearing plate 42 is pulled outward, the seed filling chamber 23 is connected to the seed clearing bin 43, and the remaining seeds in the seed filling chamber 23 are discharged into the seed clearing bin 43; S6. The seeds in the seed clearing bin 43 are discharged into the recovery chamber through the seed clearing tube 44, and the seeds to be sown in the next plot are discharged into the seed filling chamber 23, and the above process is repeated.

[0023] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications made based on the present invention belong to the scope of protection claimed by the present invention.

Claims

1. A seed meter for peanut seeding plot, characterized in that: The invention comprises a support plate (11) and a seed filling device, a seed discharging device and a seed cleaning device connected thereto. The seed filling device comprises a seed filling tube (21) and a seed filling cavity (23). The seed discharging device comprises a seed discharging cylinder (33). The interior of the seed discharging cylinder (33) is a negative pressure environment. A seed suction hole (34) is arranged on the seed discharging cylinder (33). The diameter of the seed suction hole (34) is smaller than the minimum outer diameter of the peanut seed. The seed suction hole (34) moves with the seed discharging cylinder (33) from the seed filling cavity (23) to the sowing position. A hole-blocking wheel (35) is arranged at the sowing position, the hole-blocking wheel (35) is arranged in the seed discharging cylinder (33), and the outer surface of the hole-blocking wheel (35) is in contact with the inner surface of the seed suction hole (34), the seed-clearing device comprises a seed-clearing plate (42) and a seed-clearing bin (43), the seed-clearing bin (43) is arranged below the seed-filling cavity (23), the seed-clearing plate (42) is arranged between the seed-filling cavity (23) and the seed-clearing bin (43), and isolates the seed-filling cavity (23) and the seed-clearing bin (43) from each other.

2. A peanut seeding plot seed metering device according to claim 1, characterized in that: The seed filling device further comprises a seed filling cylinder (22) and a seed filling plate. The seed filling plate is fixedly connected to the piston rod of the seed filling cylinder (22) and slides radially in the seed filling tube (21). When the seed filling cylinder is in the extended position, the seed filling plate isolates the inner space of the seed filling tube (21) from the inner space of the seed filling cavity (23).

3. A seed metering device for peanut seeding plot according to claim 1, characterized in that: The seeding device further comprises a seeding shaft (31), the seeding shaft (31) being coaxially arranged with the seeding cylinder (33), a vent hole (32) being arranged on the seeding shaft (31), and the seeding shaft (31) being connected to a negative pressure fan.

4. A seed metering device for peanut seeding plot according to claim 3, characterized in that: The seed suction holes (34) are multiple in number and are evenly distributed along the circumference of the seed discharging cylinder (33); the ventilation holes (32) are multiple in number and are evenly distributed along the circumference of the seed discharging shaft (31).

5. The peanut seeding plot metering device according to claim 1, characterized in that: The seed cleaning device further comprises a seed cleaning cylinder (41), the seed cleaning plate (42) is arranged obliquely, and the upper end of the seed cleaning plate (42) is fixedly connected to the piston rod of the seed cleaning cylinder (41).

6. The seed metering device for peanut seeding plot according to claim 1, characterized in that: The seed cleaning device further comprises a seed cleaning cylinder (44), wherein the seed cleaning cylinder (44) is arranged below the seed cleaning bin (43), one end of the seed cleaning cylinder (44) is connected to the seed cleaning bin (43), and the other end of the seed cleaning cylinder (44) is connected to the seed recovery chamber.

7. The peanut seeding plot metering device according to claim 1, characterized in that: The hole-blocking wheel (35) is arranged below the seeding shaft (31) via a connecting frame, and the hole-blocking wheel (35) is rotatably arranged on the connecting frame.

8. A method for arranging seeds in a peanut breeding plot, characterized in that: Using the peanut seeding plot metering device as claimed in any one of claims 1 to 7 comprises the following steps: S1. Place the peanut seeds to be sown into the seed filling tube (21); S2. The piston rod of the seed filling cylinder (22) retracts, and the seed filling plate moves out of the seed filling tube (21), so that the seeds in the seed filling tube (21) fall into the seed filling chamber (23); S3. The seeding cylinder (33) rotates, and the peanut seeds in the seed filling chamber (23) are adsorbed onto the seed suction hole (34), and rotate with the seeding cylinder (33) to the plugging hole wheel (35); S4. When the plugging wheel (35) contacts the inner surface of the seed suction hole (34), the seed suction hole (34) is isolated from the negative pressure environment inside the seed discharge cylinder (33), and the peanut seeds on the outer surface of the seed suction hole (34) lose their adsorption force and fall into the soil; S5. After the sowing of a cell is completed, the seed cleaning plate (42) is pulled outward, the seed filling chamber (23) is connected to the seed cleaning chamber (43), and the remaining seeds in the seed filling chamber (23) are discharged into the seed cleaning chamber (43); S6. The seeds in the seed clearing bin (43) are discharged into the recovery chamber through the seed clearing cylinder (44).

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