A seeding mechanism for a planter

Abstract

The utility model discloses a seeding machine seed dropping mechanism, including hopper, the bottom one side of hopper is fixed with motor, the bottom of hopper still is provided with a plurality of seed dropping components, the seed dropping component includes the casing, the circular cavity is opened in the casing, the casing is provided with two partition vane wheels, two the partition vane wheel between is provided with the partition disc, the motor output shaft is fixed with the pivot, the pivot penetrates the casing of a plurality of seed dropping components, and two the partition vane wheel and partition disc of same seed dropping component are all with pivot fixed connection, the partition disc is used for separating out two storage cavities with circular cavity, two the storage cavity top end is connected with hopper respectively through two first passageways. The utility model discloses two first passageway design forms two seed supply path, when one of first passageway is blocked because seed caking, impurity card stagnation etc. reason, another first passageway can continue to supply seed, avoid the single passageway block and lead to no seed to be sowed into the ground.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, and in particular to a seed-laying mechanism for a seeder. Background Technology

[0002] In the process of agricultural modernization, seeders are key equipment for improving agricultural production efficiency. The seeding mechanism, as the core executing component of the seeder, directly determines the quality and efficiency of the sowing operation, significantly impacting crop yield. Currently, most mainstream seeders employ a single-channel seed supply design, which, while simple in structure, is susceptible to the effects of seed condition in complex field environments.

[0003] The existing single-channel sowing mechanism has obvious shortcomings. When soil impurities or foreign objects are mixed into the channel, it is very easy to cause blockage, resulting in interruption of seed supply and the formation of missed sowing holes. Therefore, it is necessary to stop the machine immediately and disassemble the channel for cleaning. This not only interrupts the sowing rhythm, but also increases the cost of manual operation. Especially when the seeds are moist or contain impurities, the blockage frequency is higher. Frequent start-ups and shutdowns seriously reduce the efficiency of operation. Moreover, the single-channel design cannot flexibly adjust the sowing rate, making it difficult to select the appropriate sowing quantity (the number of seeds in the planting hole) according to the seed quality, thus limiting its applicability.

[0004] Therefore, there is an urgent need for a seeding mechanism in a seeder to solve the above problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a seeding mechanism for a seeder. The two first channels are designed to form two seed supply paths. When one of the first channels is blocked due to seed clumping, impurities, or other reasons, the other first channel can continue to supply seeds, thus avoiding the situation where no seeds are sown due to blockage of a single channel.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A seeding mechanism for a seeder includes a hopper, a motor fixed to one side of the bottom of the hopper, and several seeding components at the bottom of the hopper. Each seeding component includes a housing with a circular cavity inside. Two separating impellers are disposed inside the housing, and a separating disc is disposed between the two separating impellers. A rotating shaft is fixed to the output shaft of the motor and passes through the housing of the seeding components. The two separating impellers and the separating disc of the same seeding component are fixedly connected to the rotating shaft. The separating disc is used to divide the circular cavity into two storage cavities. The tops of the two storage cavities are connected to the hopper through two first channels, and a second channel communicating with the two storage cavities is provided at the bottom of the housing.

[0008] Furthermore, the top of one end of the housing has two horizontal slots that communicate with the two first channels, and a baffle is inserted into the horizontal slot.

[0009] Furthermore, the baffle is made of polyethylene material.

[0010] Furthermore, a spring is provided at the bottom of the horizontal slot via the slot body, and a positioning post is fixed at the top of the spring.

[0011] Furthermore, a stop block is provided at the end of the baffle located in the first channel.

[0012] Furthermore, bearings are fixed on opposite sides of the housing, and the rotating shaft passes through the inner rotating ring of the bearing and is fixedly connected to the inner rotating ring of the bearing.

[0013] Furthermore, the hopper is also equipped with a guide device that matches the next seed component.

[0014] Furthermore, the guiding device includes a guide plate fixedly connected to the hopper, and limit plates are fixed on both sides of the guide plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention features two first channels to form two seed supply paths. When one of the first channels becomes blocked due to seed clumping, impurities, or other reasons, the other first channel can continue to supply seeds, thus avoiding the situation where no seeds are sown due to a blockage in a single channel.

[0017] This invention controls the on / off state of the two first channels through a baffle, allowing for selection of single-channel or dual-channel simultaneous seed supply based on seed quality, flexibly adjusting the sowing quantity to suit the planting requirements of different crops such as peanuts and soybeans.

[0018] This invention uses a protrusion that cooperates with a positioning groove, a spring that pushes the positioning column to press it, and a stop block to limit the position. This ensures the stability of the baffle when blocking the first channel, facilitates the pull-out operation, and prevents the baffle from completely disengaging from the horizontal slot, thus avoiding the loss of parts.

[0019] The guide plate and limiting plate of this invention work together to make the discharged seeds fall into the soil along a fixed path, avoiding side leakage and deviation, improving sowing accuracy and reducing seed waste. Attached Figure Description

[0020] Figure 1 This is a side cross-sectional view of the seeding mechanism of a seeder according to the present invention.

[0021] Figure 2 This is a partial cross-sectional view of the seeding mechanism of a seeder according to the present invention.

[0022] Figure 3 This is a schematic diagram showing the connection between the baffle and the horizontal slot of the seeding mechanism of a seeder according to the present invention.

[0023] Figure 4 This is a schematic diagram of the guiding device structure of a seeding mechanism for a seeder according to the present invention.

[0024] Figure 5 This is a schematic diagram of the partitioned impeller structure of a seeding mechanism for a seeder according to the present invention.

[0025] In the diagram: 1. Hopper; 2. Guiding device; 201. Guide plate; 202. Limiting plate; 3. Shell; 4. Circular cavity; 6. Dividing impeller; 7. Dividing disc; 8. Baffle; 801. Stop block; 9. First channel; 11. Second channel; 12. Spring; 13. Positioning post; 14. Protrusion; 15. Positioning groove; 16. Horizontal slot; 17. Motor; 18. Rotating shaft. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1

[0030] like Figure 1-5 As shown, a seeding mechanism for a seeder includes a hopper 1, a motor 17 fixed to one side of the bottom of the hopper 1, and several seeding components at the bottom of the hopper 1. Each seeding component includes a housing 3, a circular cavity 4 inside the housing 3, two dividing impellers 6 inside the housing 3, and a dividing disc 7 between the two dividing impellers 6. A rotating shaft 18 is fixed to the output shaft of the motor 17 and passes through the housing 3 of the several seeding components. The two dividing impellers 6 and the dividing disc 7 of the same seeding component are fixedly connected to the rotating shaft 18. The dividing disc 7 is used to divide the circular cavity 4 into two storage cavities. The two dividing impellers 6 of the same seeding component are located in the two storage cavities respectively. The tops of the two storage cavities are connected to the hopper 1 through two first channels 9 respectively. A second channel 11 communicating with the two storage cavities is opened at the bottom of the housing 3.

[0031] In this embodiment, such as Figure 5 As shown, the separator impeller 6 consists of a straight cylindrical section and several straight plates. The separator impeller 6 is located behind the circular cavity 4. A small gap is left between the ends of the straight plates and the inner wall of the circular cavity 4, so that when the motor drives the rotating shaft 18 to rotate, the separator impeller 6 can rotate accordingly. The separator impellers together form a space to hold seeds. Figure 1 As shown, when the opening of this space faces upward, the seeds in the hopper 1 will enter this space through the first channel 9. Then, the separator impeller 6 continues to rotate under the action of the motor 17 and the rotating shaft 18, thereby rotating this space so that the opening faces downward, and the seeds fall through the second channel. During this process, the spaces formed by other adjacent straight plates will repeat the above steps to achieve continuous seeding operation.

[0032] The two first channels 9 correspond to independent storage chambers and separating impellers 6, forming two completely independent seed supply paths. When one of the first channels 9 becomes blocked due to seed clumping, soil impurities, or foreign objects, the other unblocked first channel 9 can still continuously supply seeds to its storage chamber. The separating impeller 6 in the storage chamber can rotate normally to pick up seeds and discharge them through the second channel 11 at the bottom of the housing 3, ensuring that the seeding assembly maintains at least one effective seed supply path. This design not only avoids the problem of the entire seeding mechanism completely stopping when a single channel is blocked, but also provides a buffer time for subsequent shutdown to clear the blocked channel without interrupting the sowing operation.

[0033] like Figure 2 and Figure 3 As shown, the dividing plate 7 divides the circular cavity 4 into two storage cavities. The tops of the two storage cavities are connected to the hopper 1 through two first channels 9 respectively. Two horizontal slots 16 connected to the two first channels 9 are opened at the top of one end of the shell 3. Baffles 8 are inserted into the horizontal slots 16.

[0034] When the baffle 8 is inserted into the corresponding horizontal slot 16, it will close the corresponding first channel 9, so that the seeds in the hopper 1 cannot enter the corresponding storage cavity through the first channel 9. Therefore, by choosing to close one first channel 9 or to keep both first channels 9 open, the number of seeds to be sown can be selected.

[0035] Among them, such as Figure 3 As shown, the bottom of the baffle 8 has several protrusions 14 along its length. The bottom of the horizontal slot 16 has a positioning groove 15 that matches the protrusions 14. The protrusions 14 are integrally formed with the baffle 8. The baffle 8 is made of polyethylene material, so the baffle 8 has a certain deformation capability. When the baffle 8 is not subjected to horizontal force, the protrusions 14 will be embedded in the positioning groove 15, thereby improving the positional stability of the baffle 8 and preventing the position of the baffle 8 from changing when blocking the first channel 9. When the baffle 8 is subjected to horizontal pulling force, the protrusions 14 will deform to a certain extent and disengage from the positioning groove 15, so that the baffle 8 can be pulled out of the horizontal slot 16, thereby ensuring that the corresponding first channel 9 will not be blocked by the baffle 8.

[0036] Among them, such as Figure 3 As shown, bearings are fixed on opposite sides of the housing 3, and the rotating shaft 18 passes through the inner rotating ring of the bearing and is fixedly connected to the inner rotating ring of the bearing to ensure the rotational stability of the rotating shaft 18.

[0037] Among them, such as Figure 1 and Figure 4As shown, the hopper 1 is also equipped with a guide device 2 that matches the seeding component. The guide device 2 includes a guide plate 201 that is fixedly connected to the hopper 1. Limiting plates 202 are fixed on both sides of the guide plate 201. The seeds discharged by the seeding mechanism will fall onto the guide plate 201 and fall into the soil after being guided by the guide plate 201. The limiting plates 202 can make the seeds fall along the length of the guide plate 201, preventing the seeds from falling from the side of the guide plate 201. Example 2

[0038] Based on Example 1, such as Figure 3 As shown, a spring 12 is provided at the bottom of the horizontal slot 16 through the slot body, and a positioning post 13 is fixed at the top of the spring 12. A stop block 801 is provided at the end of the baffle 8 located in the first channel 9. The spring 12 is always in a compressed state, so it will exert an upward force on the positioning post 13, thereby causing the positioning post 13 to abut against the baffle 8 and fix the baffle 8, so as to further improve the stability of the position of the baffle 8. In addition, the stop block 801 cannot pass through the horizontal slot 16, so in this embodiment, the baffle 8 cannot be completely detached from the horizontal slot 16, so the loss of the baffle 8 can be avoided. When the end of the stop block 801 contacts the side wall of the first channel 9, it indicates that the first channel 9 has been opened.

[0039] This organization is suitable for the cultivation of crops such as peanuts and soybeans.

[0040] Working principle: After the motor 17 starts, its output shaft drives the rotating shaft 18 to rotate. The rotating shaft 18 synchronously drives the two separating impellers 6 and the separating disk 7 in each seeding component to rotate. The separating disk 7 divides the circular cavity 4 inside the housing 3 into two storage cavities. The two storage cavities are respectively connected to the hopper 1 through the corresponding first channel 9. The opening and closing state of the first channel 9 can be controlled by the baffle 8: When the baffle 8 is inserted into the horizontal slot 16, the protrusion 14 is embedded in the positioning slot 15. At the same time, the spring 12 pushes the positioning post 13 to abut against the baffle 8. With the stop block 801 limiting the position, the baffle 8 stably closes the corresponding first channel 9, and the seeds cannot enter the storage cavity; when the baffle 8 is pulled out (the channel opens when the stop block 801 contacts the side wall of the first channel 9), the first channel 9 is open, and the seeds in the hopper 1 can be released. The seeds enter the corresponding storage cavity. The separating impeller 6 consists of a straight cylinder and straight plates. When rotating, a space for accommodating seeds is formed between the straight plates. When the opening of the space faces upward, it receives the seeds that enter the storage cavity through the first channel 9. As the separating impeller 6 continues to rotate, when the opening of the space faces downward, the seeds are discharged through the second channel 11 at the bottom of the shell 3. The discharged seeds fall onto the guide plate 201 of the guide device 2. Under the constraint of the limit plates 202 on both sides, the seeds slide down along the length of the guide plate 201 and finally fall accurately into the soil. By choosing to close a single first channel 9 or keep both channels open, the amount of seeds entering the storage cavity can be adjusted to control the number of seeds sown. The continuous rotation of the separating impeller 6 makes the above seed picking and discharging process continuous, completing the continuous sowing operation.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A seeding mechanism for a seeder, comprising a hopper (1), characterized in that: A motor (17) is fixed on one side of the bottom of the hopper (1). Several seeding components are also provided at the bottom of the hopper (1). Each seeding component includes a housing (3). A circular cavity (4) is opened inside the housing (3). Two separator impellers (6) are provided inside the housing (3). A separator disc (7) is provided between the two separator impellers (6). A rotating shaft (18) is fixed to the output shaft of the motor (17). The rotating shaft (18) passes through the housing (3) of several seeding components. The two separator impellers (6) and separator discs (7) of the same seeding component are fixedly connected to the rotating shaft (18). The separator disc (7) is used to divide the circular cavity (4) into two storage cavities. The tops of the two storage cavities are connected to the hopper (1) through two first channels (9). A second channel (11) is opened at the bottom of the housing (3) to communicate with the two storage cavities.

2. The seed-laying mechanism of a seeder according to claim 1, characterized in that: The top of one end of the housing (3) is provided with two horizontal slots (16) that are connected to the two first channels (9), and a baffle (8) is inserted in the horizontal slots (16).

3. The seed-laying mechanism of a seeder according to claim 2, characterized in that: The bottom of the baffle (8) is provided with a number of protrusions (14) along its length direction, and the bottom of the horizontal slot (16) is provided with a positioning groove (15) that matches the protrusions (14).

4. The seed-laying mechanism of a seeder according to claim 3, characterized in that: The baffle (8) is made of polyethylene material.

5. The seed-laying mechanism of a seeder according to claim 2, characterized in that: A spring (12) is provided at the bottom of the horizontal slot (16) through the slot body, and a positioning post (13) is fixed at the top of the spring (12).

6. The seed-laying mechanism of a seeder according to claim 5, characterized in that: A stop block (801) is provided at the end of the baffle (8) located in the first channel (9).

7. The seed-laying mechanism of a seeder according to claim 1, characterized in that: Bearings are fixed on opposite sides of the housing (3), and the rotating shaft (18) passes through the inner rotating ring of the bearing and is fixedly connected to the inner rotating ring of the bearing.

8. The seed-laying mechanism of a seeder according to claim 1, characterized in that: The hopper (1) is also equipped with a guide device (2) that matches the next component.

9. The seed-laying mechanism of a seeder according to claim 8, characterized in that: The guiding device (2) includes a guide plate (201) fixedly connected to the hopper (1), and limit plates (202) are fixed on both sides of the guide plate (201).

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