A seed metering device for a combined seeder

Abstract

This utility model relates to the field of seed metering technology and discloses a combined seed metering device for a seeder, including a conveyor and a feeding hopper disposed above it. Limiting plates are provided at both ends of the conveyor. A discharge hopper is fixedly connected to the bottom of the feeding hopper. A seed metering component is provided inside the discharge hopper, and a discharge port is opened at one end of the discharge hopper. The seed metering component includes a connecting rod located inside the discharge hopper. Several dividing wheels and seed metering wheels are sleeved on the surface of the connecting rod. Several seed metering holes are opened on the surface of the seed metering wheels. By continuously rotating the seed metering wheels, the seeds in the seed metering holes are evenly spread onto the seedling tray. Dividing wheels with appropriate widths are selected according to the required planting spacing of the seeds to ensure that the spacing between the seed metering wheels is the same and meets planting requirements. During the conveying process of the seedling tray, the movement position is restricted by the limiting plates on both sides to ensure the uniformity of seed metering and effectively improve the seed metering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of seed metering technology, and more specifically to a seed metering device for a combined seeder. Background Technology

[0002] Seed metering devices are the core components of seeders, directly affecting sowing quality and efficiency. With the adjustment of agricultural structure, crop types and planting patterns are becoming increasingly diversified. For example, large-grain crops such as corn and soybeans require high-efficiency seed metering. Seed metering devices mainly ensure the uniformity and accuracy of sowing by precisely controlling the placement and quantity of seeds, further promoting the modernization and efficiency of agricultural production.

[0003] The shortcomings of existing technology are as follows: During use, existing seed metering devices cannot adjust the seeding distance according to the required planting spacing of the seeds, and cannot be adapted to the planting needs of various seeds. At the same time, existing seedling trays may shift in position during movement, affecting the accuracy and uniformity of seed planting position. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a combined seed metering device for a seeder, so as to solve the problem that the existing seed metering devices in the background art cannot be applied to the planting needs of various different seeds, and that the existing seedling trays may shift position during movement.

[0005] This utility model provides the following technical solution: a seed metering device for a combined seeder, including a conveyor and a feeding hopper disposed above it, both ends of the conveyor are provided with limit plates, the bottom end of the feeding hopper is fixedly connected to a discharge hopper, the inner cavity of the discharge hopper is provided with a seed metering component, and one end of the discharge hopper is provided with a discharge port.

[0006] The seed dispensing assembly includes a connecting rod located in the inner cavity of the hopper. The surface of the connecting rod is fitted with a plurality of separating wheels and seed dispensing wheels, and the surface of the seed dispensing wheels is provided with a plurality of seed dispensing holes.

[0007] Preferably, the plurality of the dividing wheels and the seeding wheels are arranged at equal intervals, and the dividing wheels and the seeding wheels are staggered with each other, and fasteners are provided at both ends of the connecting rod.

[0008] Preferably, the seed dispensing holes are arranged in a ring array, and the surfaces of the separator wheel and the seed dispensing wheel are in contact with the inner wall of the discharge port.

[0009] Preferably, both ends of the connecting rod pass through the hopper and are equipped with fasteners.

[0010] Preferably, a fixing seat is fixedly installed at the top center of the limiting plate, and a motor is installed at one end of one of the fixing seats. Both ends of the connecting rod are located at the center of the fixing seat, and the output end of the motor is fixedly connected to one end of the connecting rod.

[0011] Preferably, a guide plate is fixedly connected to one side of the inner cavity of the hopper, and the guide plate is inclined towards the discharge port.

[0012] Preferably, a seedling tray is provided at the top of the conveyor, and the seedling tray is located between two limiting plates.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model ensures the uniformity of seed planting by incorporating a seed metering component. When in use, the motor is started, which drives the connecting rod to rotate. The connecting rod drives the separating wheel and the seed metering wheel to rotate. The seeds in the inner cavity of the hopper flow into the inner cavity of the seed metering wheel. As the seed metering wheel rotates continuously, it moves the seeds in the inner cavity of the seed metering hole to the discharge port, where they fall evenly onto the seedling tray. The surface of the seed metering wheel is in contact with the inner wall of the discharge port, ensuring that the seeds can only be discharged from the inner cavity of the seed metering hole, preventing the seeds in the inner cavity of the hopper from being discharged directly from the discharge port, which would affect the uniformity of seed metering.

[0015] 2. This utility model achieves equidistant sowing of seeds by using several adjacently arranged dividing wheels and seed metering wheels. The dividing wheels are selected according to the required planting spacing of the seeds to ensure that the spacing between the seed metering wheels is the same and meets the planting requirements. During the seed metering process, the seedling tray is continuously transported to the bottom of the seed metering component by a conveyor. During the transport of the seedling tray, the movement position is restricted by the limiting plates on both sides to avoid positional deviation during movement, which would affect the uniformity of seed metering and effectively improve the seed metering efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the seeding component structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0019] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] The attached diagram is labeled as follows: 1. Conveyor; 2. Feed hopper; 3. Limiting plate; 4. Discharge hopper; 5. Seed metering assembly; 51. Connecting rod; 52. Separating wheel; 53. Seed metering wheel; 54. Seed metering hole; 55. Fastener; 6. Discharge port; 7. Fixing base; 8. Motor; 9. Guide plate; 10. Seedling tray. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The combined seed metering device for a seeder involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] This utility model provides a combined seed metering device for a seeder, such as... Figure 1 - Figure 4 As shown, it includes a conveyor 1 and a feed hopper 2 set above it. Both ends of the conveyor 1 are provided with limit plates 3. The bottom end of the feed hopper 2 is fixedly connected to a discharge hopper 4. The inner cavity of the discharge hopper 4 is provided with a seed dispensing component 5. One end of the discharge hopper 4 is provided with a discharge port 6. The seeds to be planted are added to the inner cavity of the feed hopper 2 and then discharged through the discharge port 6.

[0023] Furthermore, such as Figure 1 and Figure 2 As shown, the seed metering assembly 5 includes a connecting rod 51 located in the inner cavity of the hopper 4. The surface of the connecting rod 51 is fitted with a plurality of dividing wheels 52 and seed metering wheels 53. The surface of the seed metering wheels 53 is provided with a plurality of seed metering holes 54.

[0024] Furthermore, such as Figure 2 As shown, several dividing wheels 52 and seed metering wheels 53 are arranged at equal intervals, and the dividing wheels 52 and seed metering wheels 53 are staggered. Fasteners 55 are provided at both ends of the connecting rod 51. According to the required spacing for seed planting, a suitable size dividing wheel 52 is selected so that the width of the dividing wheel 52 matches the spacing between the seeds. The dividing wheel 52 separates the distance between the seed metering wheels 53, ensuring that the spacing between several seed metering wheels 53 is the same and meets the planting interval requirements. After the dividing wheel 52 and seed metering wheel 53 are combined, they are fixed by the fasteners 55 at both ends. This allows the device to adjust the spacing of seed planting according to planting needs, effectively improving the practicality of the seed metering device.

[0025] Furthermore, such as Figure 2 and Figure 4As shown, several seed dispensing holes 54 are arranged in a circular array. The surfaces of the separator wheel 52 and the seed dispensing wheel 53 are in contact with the inner wall of the discharge port 6. As the seed dispensing assembly 5 rotates, the seeds in the inner cavity of the hopper 4 will enter the inner cavity of the seed dispensing hole 54. As the seed dispensing wheel 53 rotates, it will discharge the seeds from the discharge port 6, so that the seeds can only be carried out in the inner cavity of the seed dispensing hole 54, avoiding other seeds in the inner cavity of the hopper 4 from being discharged from the discharge port 6, which would affect the uniformity of seed dispensing.

[0026] Furthermore, such as Figure 1 and Figure 3 As shown, a fixed base 7 is fixedly installed at the top center of the limiting plate 3. A motor 8 is installed at one end of one of the fixed bases 7. Both ends of the connecting rod 51 are located in the middle of the fixed base 7. The output end of the motor 8 is fixedly connected to one end of the connecting rod 51. When in use, the motor 8 is started, and the connecting rod 51 is driven to rotate through the output end of the motor 8. The fixed base 7 ensures the stability of the connecting rod 51 during rotation, so that the separating wheel 52 and the seed metering wheel 53 on the surface of the connecting rod 51 rotate. The seeds in the inner cavity of the seed metering hole 54 will fall from the discharge port 6 as the seed metering wheel 53 rotates.

[0027] Furthermore, as shown in Figure 3, a guide plate 9 is fixedly connected to one side of the inner cavity of the hopper 4. The guide plate 9 is inclined towards the discharge port 6. After the seeds to be discharged are added to the inner cavity of the feed hopper 2, they will flow downward to the hopper 4. During the downward flow, the guide plate 9 enables the seeds to flow towards the discharge port 6, ensuring that the seeds are added to the inner cavity of the seed discharge hole 54 at the discharge port 6.

[0028] Furthermore, such as Figure 1 and Figure 3 As shown, a seedling tray 10 is provided at the top of the conveyor 1. The seedling tray 10 is located between two limiting plates 3. The seedling tray 10 moves to the bottom of the seed metering component 5 as the conveyor 1 moves. During the movement of the seedling tray 10, the limiting plates 3 on both sides restrict the movement position to avoid the seedling tray 10 shifting position during the movement, which would affect the accuracy of seed planting. The seed metering wheel 53 rotates continuously to evenly spread the seeds added to the inner cavity of the seed metering hole 54 onto the seedling tray 10. As the seedling tray 10 is continuously conveyed, the seed metering operation is completed, which effectively improves the working efficiency of the device.

[0029] The working principle of this utility model is as follows: First, according to the required spacing for seed planting, a suitable size of separator wheel 52 is selected so that the width of the separator wheel 52 matches the planting spacing between seeds. The separator wheel 52 separates the distance between the seed metering wheels 53, ensuring that the spacing between several seed metering wheels 53 is the same and meets the planting spacing requirements. After the separator wheel 52 and seed metering wheels 53 are combined, they are fixed by fasteners 55 on both sides, so that the device can be adapted to the planting needs of various seeds. After the combination is completed, the seeds to be metered are added to the inner cavity of the feed hopper 2. The seeds in the inner cavity of the feed hopper 2 flow to the inner cavity of the discharge hopper 4 through the guide plate 9 towards the discharge port 6. Then, the motor 8 and the conveyor 1 are started. The output end drives the connecting rod 51 to rotate. After the seedling tray 10 is filled with planting soil, it is placed on the conveyor 1. The conveyor 1 transports the seedling tray 10 to the seed metering component 5. During the movement of the seedling tray 10, the position of movement is restricted by the limiting plates 3 on both sides to prevent the position of the seedling tray 10 from deviating during the transport process. The limiting plates 3 on both sides ensure the accuracy of the position of the seedling tray 10. At the same time, when the connecting rod 51 rotates, it drives the seed metering wheel 53 to rotate. The seeds in the inner cavity of the hopper 4 will be added to the inner cavity of the seed metering hole 54 opened on the surface of the seed metering wheel 53. As the seed metering wheel 53 rotates, the seeds in the inner cavity of the seed metering hole 54 are evenly spread on the seedling tray 10 through the discharge port 6. As the seedling tray 10 moves continuously and the seed metering wheel 53 rotates continuously, the seed metering operation is completed.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A seed metering device for a combined seeder, comprising a conveyor (1) and a feed hopper (2) disposed above it, characterized in that: Limit plates (3) are provided at both ends of the conveyor (1), and a discharge hopper (4) is fixedly connected to the bottom end of the feed hopper (2). A seed discharging assembly (5) is provided in the inner cavity of the discharge hopper (4), and a discharge port (6) is opened at one end of the discharge hopper (4). The seed metering assembly (5) includes a connecting rod (51) located in the inner cavity of the hopper (4). The surface of the connecting rod (51) is fitted with a plurality of dividing wheels (52) and seed metering wheels (53). The surface of the seed metering wheels (53) is provided with a plurality of seed metering holes (54).

2. The seed metering device for a combined seeder according to claim 1, characterized in that: Several of the separating wheels (52) and seeding wheels (53) are arranged at equal intervals, and the separating wheels (52) and seeding wheels (53) are arranged alternately. Fasteners (55) are provided at both ends of the connecting rod (51).

3. The seed metering device for a combined seeder according to claim 1, characterized in that: A number of seed dispensing holes (54) are arranged in a ring array, and the surfaces of the separator wheel (52) and the seed dispensing wheel (53) are in contact with the inner wall of the discharge port (6).

4. A seed metering device for a combined seeder according to claim 1, characterized in that: A fixed seat (7) is fixedly installed at the top center of the limiting plate (3). One end of the fixed seat (7) is equipped with a motor (8). Both ends of the connecting rod (51) are located in the middle of the fixed seat (7). The output end of the motor (8) is fixedly connected to one end of the connecting rod (51).

5. A seed metering device for a combined seeder according to claim 1, characterized in that: A guide plate (9) is fixedly connected to one side of the inner cavity of the hopper (4), and the guide plate (9) is inclined toward the discharge port (6).

6. A seed metering device for a combined seeder according to claim 1, characterized in that: The top of the conveyor (1) is provided with a seedling tray (10), which is located between two limiting plates (3).

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