A two-way disturbance seed cleaning device suitable for peanut seed metering device

Abstract

A bidirectional disturbance seed cleaning device suitable for peanut seed sowing device, characterized by: the seed filling shell, the seed combing soft brush, the seed cleaning tooth plate, the seed sowing disc, the sleeve coupling, the sealing cover, the sealing gasket, the negative pressure cavity shell, the bearing, the motor, the seed dropping assembly, the seed filling shell is connected with the negative pressure cavity shell, the brush handle of the seed combing soft brush is fixed on the seed filling shell, the seed cleaning tooth plate is connected in the seed filling shell through the fixed hole, the seed sowing disc is located between the seed filling shell and the negative pressure cavity shell, is connected with the motor shaft through the sleeve coupling, the motor is fixed on the outside of the negative pressure cavity shell, the motor shaft passes through the bearing, the bearing is installed on the negative pressure cavity shell, the sealing cover is fixed on the inside of the negative pressure cavity shell, the seed dropping assembly is installed below the seed sowing disc side.The structure of the present application is simple and reliable, and the soft teeth made of elastic material are used to comb and remove the excess seeds on the seed sowing disc step by step, effectively reducing the reseeding rate and improving the single grain precision seeding operation quality.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery and relates to a bidirectional disturbance and seed cleaning device suitable for peanut seed metering devices, which is particularly suitable for peanut sowing operations. Background Technology

[0002] The key component of peanut planting machinery is the seed metering device. Currently, seed metering devices mainly use finger-clamp, scoop, and pneumatic methods for seed collection. Among these, the pneumatic method offers better flexibility and is more suitable for high-speed planting operations, making it an important means of achieving high-speed planting. During the planting process, to ensure a high seed collection success rate, pneumatic seed metering devices are set with high negative pressure and large suction port cross-sectional areas. This practice can lead to multiple seeds being collected from a single suction port, causing seed duplication. For single-seed precision planting, duplication results in seed waste, and multiple seeds introduce competition, causing some seedlings to lag behind in growth and fail to fully absorb nutrients, thus failing to achieve the expected yield. Summary of the Invention

[0003] In order to increase yield and reduce costs, and improve sowing quality, this invention provides a bidirectional disturbance and seed cleaning device suitable for peanut seed metering devices, which can clean up excess seeds on the seed metering tray in steps, reduce the replanting rate, and improve the quality of single-seed precision sowing.

[0004] The detailed technical solution of the present invention is as follows: A bidirectional disturbance seed cleaning device suitable for peanut seed metering includes a seed filling shell (1), a seed combing soft brush (2), a seed cleaning tooth plate (3), a seed metering disc (4), a sleeve coupling (5), a sealing cover (6), a sealing gasket (7), a negative pressure chamber shell (8), a bearing (9), a motor (10), and a seed dropping assembly (11). The seed combing soft brush (2) is composed of a brush handle (201) and brushes (202). The lower half of the brush handle (201) is crescent-shaped, and the brushes (202) are evenly distributed at the lower end of the brush handle (201). On the surface, the seed cleaning plate (3) is provided with soft teeth (301) and fixing holes (302). The length of the soft teeth (301) increases from one end to the other. The negative pressure chamber shell (8) is provided with a slot (801) and an air intake (802). The slot (801) is located inside the negative pressure chamber shell (8) and is parallel to the end face of the chamber. The air intake (802) faces the outside of the shell and is connected to the negative pressure fan. The seed dispensing plate (4) is evenly distributed with several seed suction holes (401) on the circumference. Streamlined protruding disturbance bars (402) are provided on both sides of the seed suction holes (401).

[0005] The seed filling shell (1) is fastened to the negative pressure chamber shell (8). The brush handle (201) of the seed combing soft brush (2) is fixed on the seed filling shell (1). The brush (202) extends to the vicinity of the seed suction hole (401) inside the shell. The seed filling shell (1) is provided with longitudinal strip holes. The brush handle (201) of the seed combing soft brush (2) is provided with transverse strip holes for adjusting the position of the seed combing soft brush (2).

[0006] The seed cleaning tooth plate (3) is connected to the inside of the seed filling shell (1) through the fixing hole (302) and is set on the inner side of the distribution circle of the seed suction hole (401). The fixing hole (302) is a countersunk structure, which can avoid interference with the seed metering plate (4). The soft tooth (301) extends obliquely to the vicinity of the seed suction hole (401). The top surface of the soft tooth (301) is set as an arc surface. The axis of the arc is parallel to the tangent of the distribution circle of the seed suction hole (401) to ensure that the peanut can be removed under uniform force during the seed cleaning process.

[0007] The seed metering disc (4) is located between the seed filling shell (1) and the negative pressure chamber shell (8), and is connected to the motor (10) shaft through a sleeve coupling (5). The motor (10) is fixed on the outside of the negative pressure chamber shell (8), and the motor (10) shaft passes through the bearing (9). The bearing (9) is installed on the negative pressure chamber shell (8). The sealing cover (6) is fixed on the inside of the negative pressure chamber shell (8) and is shaped like a flat-bottomed bowl. The upper edge of the sealing cover (6) has a flat surface, which presses against the inner sealing ring of the sealing gasket (7) to seal tightly. The sealing gasket (7) is made of elastic material. Its outer sealing ring is inserted into the slot (801) of the negative pressure chamber housing (8). One end face of the sealing gasket (7) is in close contact with the end face of the seed metering tray (4), and the other end face is in close contact with the side end face of the slot (801) so that a closed negative pressure space is formed between the negative pressure chamber housing (8) and the seed metering tray (4) to provide sufficient seed picking pressure. The seed dropping assembly (11) is installed on the side below the seed metering tray (4) to constrain and guide the peanut kernels to fall accurately into the seed furrow.

[0008] When the seed tray (4) rotates while carrying seeds, the peanut kernels first pass through the seed combing brush (2). The distance between the brush (202) of the seed combing brush (2) and the seed suction hole (401) gradually decreases, causing the peanut kernels to rotate slightly and adjust to a position where the long axis of the peanut kernels is tangent to the distribution circle of the seed suction hole (401), thus preparing for seed cleaning. Then, the peanut kernels pass through the seed cleaning tooth plate (3). The distance between the soft teeth (301) of the seed cleaning tooth plate (3) and the seed suction hole (401) gradually decreases, causing the arc-shaped top surface of the soft teeth (301) to intermittently and evenly remove excess peanut kernels, thus completing the seed cleaning operation.

[0009] Compared with the prior art, the present invention has a simple and reliable structure, and uses soft teeth made of elastic material to comb and remove excess seeds on the seed metering tray in steps, which effectively reduces the reseeding rate and improves the quality of single-seed precision seeding. Attached Figure Description

[0010] Figure 1 : Exploded view of the structure of this invention.

[0011] Figure 2 : An isometric side view of the present invention.

[0012] Figure 3 Assembly diagram of the seed combing soft bristle brush and seed cleaning tooth plate of the present invention.

[0013] Figure 4 : A cross-sectional view of the negative pressure chamber housing of the present invention.

[0014] Figure 5 : A partial enlarged view of the present invention.

[0015] Figure 6 : A schematic diagram of the seed metering disc of the present invention.

[0016] Figure 7 : A schematic diagram of the structure of the soft bristle comb of the present invention.

[0017] Figure 8 : A schematic diagram of the structure of the seed cleaning plate of the present invention.

[0018] In the attached diagram, 1. Seed filling shell, 2. Seed combing soft brush, 3. Seed cleaning toothed plate, 4. Seed dispensing disc, 5. Sleeve coupling, 6. Sealing cover, 7. Sealing gasket, 8. Negative pressure chamber shell, 9. Bearing, 10. Motor, 11. Seed dropping assembly;

[0019] 201. Brush handle; 202. Brush;

[0020] 301. Soft tooth; 302. Fixing hole;

[0021] 401. Seed suction hole; 402. Disturbance strip;

[0022] 801. Card slot; 802. Air intake hole. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] like Figure 1 , Figure 2 As shown, a bidirectional disturbance and seed cleaning device suitable for peanut seed metering includes a seed filling shell (1), a seed combing soft brush (2), a seed cleaning tooth plate (3), a seed metering disc (4), a sleeve coupling (5), a sealing cover (6), a sealing gasket (7), a negative pressure chamber shell (8), a bearing (9), a motor (10), and a seed dropping assembly (11).

[0025] like Figure 4 , Figure 6 , Figure 7 , Figure 8 As shown, the seed combing soft brush (2) consists of a brush handle (201) and a brush (202). The lower half of the brush handle (201) is crescent-shaped, and the brush (202) is evenly distributed on the lower end face of the brush handle (201). The seed cleaning tooth plate (3) is provided with soft teeth (301) and fixing holes (302). The length of the soft teeth (301) increases from one end to the other end. The negative pressure chamber shell (8) is provided with a slot (801) and an air intake (802). The slot (801) is located inside the negative pressure chamber shell (8) and is parallel to the end face of the chamber. The air intake (802) faces the outside of the shell and is connected to the negative pressure fan. The seed metering disc (4) is evenly distributed with several seed suction holes (401) on the circumference. Streamlined protruding disturbance bars (402) are provided on both sides of the seed suction holes (401).

[0026] like Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, the seed filling shell (1) is fastened to the negative pressure chamber shell (8). The brush handle (201) of the seed combing soft brush (2) is fixed on the seed filling shell (1). The brush (202) extends to the vicinity of the seed suction hole (401) inside the shell. The seed filling shell (1) is provided with longitudinal strip holes. The brush handle (201) of the seed combing soft brush (2) is provided with transverse strip holes for adjusting the position of the seed combing soft brush (2). The brush (202) can be replaced with rubber, plastic and other materials, which will not be listed here.

[0027] like Figure 3 , Figure 5 , Figure 6 , Figure 8 As shown, the seed cleaning tooth plate (3) is connected to the inside of the seed filling shell (1) through the fixing hole (302) and is set on the inner side of the distribution circle of the seed suction hole (401). The fixing hole (302) is a countersunk structure, which can avoid interference with the seed metering plate (4). The soft tooth (301) extends obliquely to the vicinity of the seed suction hole (401). The top surface of the soft tooth (301) is set as an arc surface. The axis of the arc is parallel to the tangent of the distribution circle of the seed suction hole (401) to ensure that the peanut can be removed under uniform force during the seed cleaning process. Materials with an elastic modulus in a specific range can be used as seed cleaning tooth plates (3), and no exhaustive list is given here.

[0028] like Figure 1 , Figure 4As shown, the seed metering disc (4) is located between the seed filling shell (1) and the negative pressure chamber shell (8), and is connected to the motor (10) shaft through the sleeve coupling (5). The motor (10) is fixed on the outside of the negative pressure chamber shell (8), and the motor (10) shaft passes through the bearing (9). The bearing (9) is installed on the negative pressure chamber shell (8). The sealing cover (6) is fixed on the inside of the negative pressure chamber shell (8) and is in the shape of a flat-bottomed bowl. The upper edge of the sealing cover (6) is provided with a flat surface, which presses the inner sealing ring of the sealing gasket (7). The sealing gasket (7) is made of elastic material. Its outer sealing ring is inserted into the slot (801) of the negative pressure chamber housing (8). One end face of the sealing gasket (7) is close to the end face of the seed metering tray (4), and the other end face is close to the side end face of the slot (801) so that a closed negative pressure space is formed between the negative pressure chamber housing (8) and the seed metering tray (4) to provide sufficient seed picking pressure. The seed dropping component (11) is installed on the side below the seed metering tray (4) to constrain and guide the peanut kernels to fall accurately into the seed furrow.

[0029] like Figure 1 , Figure 6 , Figure 7 , Figure 8 As shown, when the seed metering disc (4) rotates carrying seeds, the peanut kernels first pass through the seed combing soft brush (2). The distance between the brush (202) of the seed combing soft brush (2) and the seed suction hole (401) gradually decreases, causing the peanut kernels to rotate slightly and adjust to a position where the long axis of the peanut kernels is tangent to the distribution circle of the seed suction hole (401), thus preparing for seed cleaning. Then, the peanut kernels pass through the seed cleaning tooth plate (3). The distance between the soft teeth (301) of the seed cleaning tooth plate (3) and the seed suction hole (401) gradually decreases, causing the arc-shaped top surface of the soft teeth (301) to intermittently and evenly remove excess peanut kernels, thus completing the seed cleaning operation.

[0030] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively describe all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A bidirectional disturbance seed cleaning device suitable for peanut seed metering device, characterized in that: it comprises a seed filling housing, a seed combing soft brush, a seed cleaning tooth plate, a seed metering disc, a sleeve coupling, a sealing cover, a sealing gasket, a negative pressure cavity housing, a bearing, a motor and a seed dropping assembly, the seed combing soft brush is composed of a brush handle and a brush, the lower half of the brush handle is crescent-shaped, and the brush is uniformly distributed on the lower end surface of the brush handle, the seed cleaning tooth plate is provided with soft teeth and fixing holes, the length of the soft teeth gradually increases from one end to the other end, the negative pressure cavity housing is provided with a clamping groove and an air inlet, the clamping groove is located on the inner side of the negative pressure cavity housing and is parallel to the end surface of the cavity, and the air inlet is connected with a negative pressure fan and faces the outer side of the housing; the seed metering disc is provided with a plurality of seed suction holes uniformly distributed on the circumference, and flow line convex disturbance columns are arranged on both sides of the seed suction holes. The seed filling housing is connected with the negative pressure cavity housing in a snap-fit manner, the brush handle of the seed combing soft brush is fixed on the seed filling housing, the brush extends to the vicinity of the seed suction hole in the housing, the distance from the brush to the seed suction hole gradually decreases, longitudinal strip-shaped holes are arranged on the seed filling housing, and transverse strip-shaped holes are arranged on the brush handle of the seed combing soft brush, which are used for adjusting the position and posture of the seed combing soft brush. The seed cleaning tooth plate is connected in the seed filling housing through the fixing holes and is arranged on the inner side of the seed suction hole distribution circle, the fixing holes are in a countersunk structure and can avoid interference with the seed metering disc, the soft teeth extend to the vicinity of the seed suction hole in an inclined manner, the top end surface of the soft teeth is provided with a circular arc surface, the axis of the circular arc is parallel to the tangent of the seed suction hole distribution circle, so that the peanuts can be removed under uniform stress during the seed cleaning process. The seed metering disc is located between the seed filling housing and the negative pressure cavity housing, is connected with the motor shaft through the sleeve coupling, the motor is fixed on the outer side of the negative pressure cavity housing, the motor shaft penetrates through the bearing, the bearing is installed on the negative pressure cavity housing, the sealing cover is fixed on the inner side of the negative pressure cavity housing and is in the shape of a flat-bottomed bowl, a flat surface is arranged on the upper edge of the sealing cover, the flat surface presses the inner side sealing ring of the sealing gasket, the sealing gasket is made of elastic material, the outer side sealing ring of the sealing gasket is clamped in the clamping groove of the negative pressure cavity housing, one end surface of the sealing gasket is tightly attached to the end surface of the seed metering disc, and the other end surface is tightly attached to the side end surface of the clamping groove, so that a closed negative pressure space is formed between the negative pressure cavity housing and the seed metering disc, sufficient seed taking pressure is provided, and the seed dropping assembly is installed below the side of the seed metering disc and is used for restraining and guiding the peanuts to accurately fall into the seed furrow. When the seed metering disc rotates with the seeds, the peanuts first pass through the seed combing soft brush, the distance from the brush to the seed suction hole gradually decreases, the peanuts are slightly rotated, the position and posture of the peanuts are adjusted, the long axis of the peanuts is tangent to the seed suction hole distribution circle, and the seed cleaning preparation is completed; then, the peanuts pass through the seed cleaning tooth plate, the distance from the soft teeth to the seed suction hole gradually decreases, the circular arc top end surface of the soft teeth intermittently and uniformly removes the excess peanuts, and the seed cleaning operation is completed. ​

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