Electrically-driven control seed cleaning and sowing device and sowing machine

Abstract

The utility model relates to an electric drive control seed cleaning and sowing device and a sowing machine, the electric drive control seed cleaning and sowing device comprises a seed disc, a seed cleaning wheel assembly and a driving assembly, the seed disc can rotate around the axis of the seed disc, and a plurality of sowing holes are uniformly formed in the circumferential direction of the seed disc at intervals; the seed cleaning wheel assembly is installed on one side of the seed disc, and the driving assembly is installed on the side, away from the seed disc, of the seed cleaning wheel assembly, connected with the seed cleaning wheel assembly and used for driving the seed cleaning wheel assembly to swing so as to conduct seed cleaning treatment on seeds in the multiple seed discharging holes. The seed cleaning device has the beneficial effects that the structure is simple, the design is reasonable, the seed cleaning component is controlled through the stepping motor, the effect of accurately controlling seed cleaning is achieved, and the problem and risk of reseeding of seeds are solved.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, specifically to an electrically driven controlled seed cleaning and metering device and a seeder. Background Technology

[0002] my country is a major agricultural country with a wide variety of seeders. The seed metering mechanisms are largely similar, mostly finger-clamp or air-suction types. Soybeans, corn, and other seeds require precise sowing. A well-designed seed metering device can increase sowing speed, reduce missed sowing rates, double sowing rates, and the coefficient of variation. The seed metering device does not sow a single seed; it adjusts the position of the seed-cleaning blade according to the user's sowing scenario and the size of the crop seeds to screen and prevent multiple seeds from being sown in the same location, thus reducing the double sowing rate.

[0003] Currently, most seed metering devices use manual seed cleaning blades. The position of the blade is adjusted by manually changing the angle of the screw wheel, requiring precise calculation of the relationship between the screw wheel slide and the blade's movement. The disadvantages of this existing technology are as follows:

[0004] (1) Most of the seeds are 3mm-6mm in diameter. The position of the seed cleaning knife can be adjusted by handwheel to remove excess seeds from the seed tray, but the precision is not high.

[0005] (2) The seed cleaning knife is injection molded, which is easy to wear and has a short life. Utility Model Content

[0006] This utility model provides an electrically driven controlled seed cleaning and metering device and a seeder, aiming to solve the problems in the prior art.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0008] An electrically driven seed cleaning and metering device includes a seed disc, a seed cleaning wheel assembly, and a drive assembly. The seed disc is rotatable about its own axis and has a plurality of seed dispensing holes evenly spaced along its circumference. The seed cleaning wheel assembly is mounted on one side of the seed disc, and the drive assembly is mounted on the side of the seed cleaning wheel assembly away from the seed disc and connected to the seed cleaning wheel assembly, for driving the seed cleaning wheel assembly to swing to clean the seeds in the plurality of seed dispensing holes.

[0009] The beneficial effects of this invention are as follows: during the seeding process, the seeds are arranged in several seeding holes in a manner that can be conceived by those skilled in the art; then, during the rotation of the seed tray, the seed cleaning wheel assembly is driven by the drive assembly to swing within a certain range to clean the seeds in the several seeding holes, ensuring that only one seed is retained in each of the several seeding holes.

[0010] This utility model has a simple structure and reasonable design. By controlling the seed cleaning component with a stepper motor, it achieves precise control of the seed cleaning effect and solves the problem and risk of seed reseeding.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the seed cleaning wheel assembly includes a seed cleaning bracket and a seed cleaning wheel assembly. The seed cleaning bracket is installed on one side of the seed tray. The seed cleaning wheel assembly is fixedly installed on the seed cleaning bracket and is close to the surface of one side of the seed tray. The drive assembly is installed on the side of the seed cleaning bracket away from the seed tray and is connected to the seed cleaning bracket to drive the seed cleaning bracket to swing and clean the seeds in the plurality of seed discharge holes.

[0013] The beneficial effect of adopting the above-mentioned further solution is that during the rotation of the seed tray, the seed cleaning bracket is driven by the drive component to swing within a certain range. The seed cleaning bracket drives the seed cleaning wheel group to clean the seeds in several rows of seed holes, ensuring that only one seed is left in each of the several rows of seed holes.

[0014] Furthermore, the seed cleaning support has an arc-shaped block structure.

[0015] The advantages of adopting the above-mentioned further solutions are that the structure is simple, the shape design of the seed cleaning support is reasonable, which is convenient for assembly and can save consumables.

[0016] Furthermore, the seed cleaning wheel assembly includes at least one seed cleaning wheel, and each seed cleaning wheel is fixedly mounted on the seed cleaning bracket.

[0017] The advantages of adopting the above-mentioned further scheme are that it has a simple structure and reasonable design. It uses the seed cleaning support to drive the seed cleaning wheel to swing, so as to clean the seeds in several rows of seed holes on the seed tray.

[0018] Furthermore, the seed cleaning wheel assembly includes a plurality of seed cleaning wheels, which are fixedly installed on the seed cleaning bracket at uniform circumferential intervals.

[0019] The advantages of adopting the above-mentioned further scheme are that the structure is simple, the number of seed cleaning wheels is reasonably designed, and the seed cleaning effect is guaranteed.

[0020] Furthermore, each of the seed cleaning wheels has an L-shaped rod structure, with one end extending radially along the seed disc and fixedly connected to the seed cleaning support; the other end of each seed cleaning wheel extends axially along the seed disc, with the end face of the other end having a disc-shaped structure and being close to the seed disc.

[0021] The advantages of adopting the above-mentioned further scheme are that the structure is simple, the shape of the seed cleaning wheel is reasonably designed, and the seed cleaning effect is guaranteed.

[0022] Furthermore, the drive assembly includes a stepper motor, a gear, and an arc-shaped rack, with the arc-shaped rack fixedly mounted on the seed cleaning bracket; the stepper motor is fixedly disposed, and the gear is coaxially fixedly sleeved on the drive end of the stepper motor and meshes with the arc-shaped rack.

[0023] The beneficial effect of adopting the above-mentioned further solution is that during the rotation of the seed disc, the stepper motor drives the gear to rotate, and the meshing force between the gear and the arc rack drives the arc rack, the seed cleaning bracket and the seed cleaning wheel to swing within a certain range, so that the seed cleaning wheel cleans the seeds in several rows of seed holes, ensuring that only one seed is left in each of the several rows of seed holes.

[0024] Furthermore, the drive assembly includes a stepper motor and a cam, with the stepper motor fixedly mounted; the cam is fixedly connected to the drive end of the stepper motor and to one end of a lever, the other end of which extends into a cam groove on the seed cleaning bracket.

[0025] The beneficial effect of adopting the above-mentioned further solution is that during the rotation of the seed disc, the stepper motor drives the cam to rotate, and the special structure of the cam drives the seed cleaning bracket and the seed cleaning wheel to swing within a certain range, so that the seed cleaning wheel cleans the seeds in several rows of seed holes, ensuring that only one seed is left in each of the several rows of seed holes.

[0026] Furthermore, one end of the seed cleaning bracket is rotatably mounted around an axis, the axis being located inside one end of the cam groove, and the lever being located inside the other end of the cam groove; the drive assembly also includes a torsion spring, which is sleeved outside the axis and is fixedly connected to the axis and the groove wall of the cam groove respectively.

[0027] The advantages of adopting the above-mentioned further solution are that the structure is simple and the design is reasonable. The special structure of the cam drives the seed cleaning bracket and seed cleaning wheel to swing within a certain range, while the torsion spring is used to make the seed cleaning bracket and seed cleaning wheel return to their original position, which is convenient.

[0028] This utility model relates to a seeder, which includes an electrically driven controlled seed cleaning and metering device as described above.

[0029] The beneficial effect of adopting the above-mentioned further solutions is that this utility model also provides a seeder with a simple structure and reasonable design. The seeder controls the seed cleaning component through a stepper motor to achieve precise control of the seed cleaning effect and solve the problem and risk of seed reseeding. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2This is a schematic diagram of the structure of the seed disc, seed cleaning wheel assembly, and drive assembly in the first embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the second embodiment of the seed disc, seed cleaning wheel assembly, and drive assembly of this utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Seed tray; 2. Seed dispensing hole; 3. Seed cleaning bracket; 4. Seed cleaning wheel; 5. Stepper motor; 6. Gear; 7. Arc rack; 8. Cam; 9. Cam groove; 10. Rotary shaft; 11. Torsion spring; 12. Outer shell. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Example 1

[0040] like Figures 1 to 3As shown, this embodiment provides an electrically driven controlled seed cleaning and metering device, including a seed disc 1, a seed cleaning wheel assembly, and a drive assembly. The seed disc 1 can rotate around its own axis, and a plurality of seed dispensing holes 2 are evenly spaced along its circumference. The seed cleaning wheel assembly is installed on one side of the seed disc 1, and the drive assembly is installed on the side of the seed cleaning wheel assembly away from the seed disc 1 and connected to the seed cleaning wheel assembly, for driving the seed cleaning wheel assembly to swing to clean the seeds in the plurality of seed dispensing holes 2.

[0041] During the seeding process, the seeds are arranged in several seeding holes 2 in a manner that can be conceived by those skilled in the art; then, as the seed tray 1 rotates, the seed cleaning wheel assembly is driven by the drive assembly to swing within a certain range to clean the seeds in the several seeding holes 2, ensuring that only one seed is retained in each of the several seeding holes 2.

[0042] Preferably, this embodiment also includes a housing 12, which covers the seed disc 1, the seed cleaning wheel assembly and the drive assembly.

[0043] Preferably, in this embodiment, the seed disc 1 is preferably a disc-shaped structure, which is rotatably mounted inside the outer casing 12 via a central shaft.

[0044] It should be noted that the specific structure of the outer shell 12 and how the seeds are distributed in the seed holes 2 are based on existing technology and will not be described in detail here.

[0045] This embodiment has a simple structure and reasonable design. By controlling the seed cleaning component with a stepper motor, it achieves precise control of the seed cleaning effect and solves the problem and risk of seed reseeding.

[0046] Example 2

[0047] Based on Embodiment 1, in this embodiment, the seed cleaning wheel assembly includes a seed cleaning bracket 3 and a seed cleaning wheel assembly. The seed cleaning bracket 3 is installed on one side of the seed tray 1; the seed cleaning wheel assembly is fixedly installed on the seed cleaning bracket 3, close to the surface of one side of the seed tray 1; the driving assembly is installed on the side of the seed cleaning bracket 3 away from the seed tray 1 and is connected to the seed cleaning bracket 3, for driving the seed cleaning bracket 3 to swing to clean the seeds in the plurality of seed discharge holes 2.

[0048] During the rotation of the seed tray 1, the seed cleaning bracket 3 is driven by the drive component to swing within a certain range. The seed cleaning bracket 3 drives the seed cleaning wheel group to clean the seeds in several rows of seed holes 2, ensuring that only one seed is retained in each of the several rows of seed holes 2.

[0049] Example 3

[0050] Based on Example 2, in this example, the seed cleaning support 3 has an arc-shaped block structure.

[0051] The solution has a simple structure and the shape of the seed cleaning bracket 3 is reasonably designed, which is convenient for assembly and can save on consumables.

[0052] Example 4

[0053] Based on any one of Embodiments 2 to 3, in this embodiment, the seed cleaning wheel group includes at least one seed cleaning wheel 4, and each seed cleaning wheel 4 is fixedly installed on the seed cleaning bracket 3.

[0054] The scheme has a simple structure and reasonable design. It uses the seed cleaning bracket 3 to drive the seed cleaning wheel 4 to swing, so as to clean the seeds in several rows of seed holes 2 on the seed tray 1.

[0055] Example 5

[0056] Based on Example 4, in this example, the seed cleaning wheel assembly includes a plurality of seed cleaning wheels 4, which are fixedly installed on the seed cleaning bracket 3 at uniform circumferential intervals.

[0057] The scheme has a simple structure and a reasonable number of seed cleaning wheels 4, which ensures the effectiveness of seed cleaning.

[0058] Preferably, in this embodiment, the above-mentioned seed cleaning wheel set includes three seed cleaning wheels 4.

[0059] Example 6

[0060] Based on any one of Embodiments 4 to 5, in this embodiment, each of the seed cleaning wheels 4 has an L-shaped rod structure, one end of which extends radially along the seed disk 1 and is fixedly connected to the seed cleaning bracket 3; the other end of each of the seed cleaning wheels 4 extends axially along the seed disk 1, and the end face of the other end has a disc-shaped structure and is close to the seed disk 1.

[0061] The scheme has a simple structure and the seed cleaning wheel 4 has a reasonable shape design, which ensures the seed cleaning effect.

[0062] Example 7

[0063] Based on any one of Embodiments 2 to 6, in this embodiment, the driving component includes a stepper motor 5, a gear 6, and an arc-shaped rack 7. The arc-shaped rack 7 is fixedly installed on the seed cleaning bracket 3. The stepper motor 5 is fixedly arranged, and the gear 6 is coaxially fixedly sleeved on the driving end of the stepper motor 5 and meshes with the arc-shaped rack 7.

[0064] During the rotation of the seed tray 1, the stepper motor 5 drives the gear 6 to rotate, and the meshing force between the gear 6 and the arc rack 7 drives the arc rack 7, the seed cleaning bracket 3 and the seed cleaning wheel 4 to swing within a certain range, so that the seed cleaning wheel 4 cleans the seeds in several rows of seed holes 2, ensuring that only one seed is left in each of the several rows of seed holes 2.

[0065] Based on the above scheme, one end of the seed cleaning bracket 3 is rotatably connected to the outer shell 12 via the shaft 10, and the arc-shaped rack 7 is fixedly installed at the other end of the seed cleaning bracket 3.

[0066] In addition, the curvature of the aforementioned arc-shaped rack 7 is consistent with the circumferential curvature of the seed disc 1.

[0067] Example 8

[0068] Based on any one of Embodiments 2 to 6, in this embodiment, the driving component includes a stepper motor 5 and a cam 8, the stepper motor 5 is fixedly installed; the cam 8 is fixedly connected to the driving end of the stepper motor 5, and is fixedly connected to one end of a lever, the other end of the lever extending into the cam groove 9 on the seed cleaning bracket 3.

[0069] During the rotation of the seed tray 1, the stepper motor 5 drives the cam 8 to rotate, and the special structure of the cam 8 drives the seed cleaning bracket 3 and the seed cleaning wheel 4 to swing within a certain range, so that the seed cleaning wheel 4 cleans the seeds in several rows of seed holes 2, ensuring that only one seed is left in each of the several rows of seed holes 2.

[0070] Preferably, in this embodiment, the cam groove 9 is an arc-shaped groove, the shape of which matches the shape of the seed cleaning bracket 3.

[0071] The above embodiments 7 and 8 are parallel schemes, representing two different schemes for driving the seed cleaning bracket 3 and the seed cleaning wheel 4 to swing.

[0072] Example 9

[0073] Based on embodiment 8, in this embodiment, one end of the seed cleaning bracket 3 is rotatably arranged around the shaft 10, the shaft 10 is located inside one end of the cam groove 9, and the lever is located inside the other end of the cam groove 9; the driving assembly also includes a torsion spring 11, the torsion spring 11 is sleeved on the shaft 10, and it is fixedly connected to the shaft 10 and the groove wall of the cam groove 9 respectively.

[0074] The scheme has a simple structure and reasonable design. It uses the special structure of cam 8 to drive the seed cleaning bracket 3 and seed cleaning wheel 4 to swing within a certain range. At the same time, the torsion spring 11 is used to make the seed cleaning bracket 3 and seed cleaning wheel 4 return to their original positions, which is convenient.

[0075] Based on the above scheme, one end of the seed cleaning bracket 3 is rotatably connected to the outer shell 12 via the shaft 10.

[0076] It should be noted that the aforementioned axis 10 and the central axis of the seed disk 1 do not interfere with each other.

[0077] Example 10

[0078] Based on the above embodiments, this embodiment also provides a seeder, including the electrically driven controlled seed cleaning and metering device as described above.

[0079] This embodiment also provides a seeder with a simple structure and reasonable design. The seeder controls the seed cleaning component through a stepper motor to achieve precise control of the seed cleaning effect and solve the problem and risk of seed reseeding.

[0080] The working principle of this utility model is as follows:

[0081] During the seeding process, the seeds are arranged in several seeding holes 2 in a manner that can be conceived by those skilled in the art; then, as the seed tray 1 rotates, the seed cleaning wheel assembly is driven by the drive assembly to swing within a certain range to clean the seeds in the several seeding holes 2, ensuring that only one seed is retained in each of the several seeding holes 2.

[0082] In this invention, the seed cleaning wheel 4 can rotate without any fixed rotation constraint. When the seed tray 1 with seeds comes into contact with the seed cleaning wheel 4, rotational friction occurs, which can remove excess seeds and eliminate sliding friction, thus reducing wear and tear on the parts.

[0083] This invention uses a stepper motor to control the seed cleaning mechanism, achieving precise control of the seed cleaning effect and reducing the problem and risk of seed replanting caused by product size errors.

[0084] In addition, the seed cleaning wheel changes the sliding friction of the seed cleaning blade to rolling friction, which is less prone to wear and has a longer lifespan.

[0085] It should be noted that all electronic components involved in this utility model adopt existing technology, and all the above-mentioned components are electrically connected to the controller, and the control circuit between the controller and each component is existing technology.

[0086] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0087] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0088] 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. An electrically driven controlled seed cleaning and metering device, characterized in that: The device includes a seed tray (1), a seed cleaning wheel assembly, and a drive assembly. The seed tray (1) can rotate around its own axis and has a plurality of seed-discharging holes (2) evenly spaced along its circumference. The seed cleaning wheel assembly is installed on one side of the seed tray (1), and the drive assembly is installed on the side of the seed cleaning wheel assembly away from the seed tray (1) and connected to the seed cleaning wheel assembly. The drive assembly is used to drive the seed cleaning wheel assembly to swing and clean the seeds in the plurality of seed-discharging holes (2).

2. The electrically driven controlled seed cleaning and metering device according to claim 1, characterized in that: The seed cleaning wheel assembly includes a seed cleaning bracket (3) and a seed cleaning wheel assembly. The seed cleaning bracket (3) is installed on one side of the seed tray (1). The seed cleaning wheel assembly is fixedly installed on the seed cleaning bracket (3) and is close to the surface of one side of the seed tray (1). The drive assembly is installed on the side of the seed cleaning bracket (3) away from the seed tray (1) and is connected to the seed cleaning bracket (3) to drive the seed cleaning bracket (3) to swing to clean the seeds in the plurality of seed discharge holes (2).

3. The electrically driven controlled seed cleaning and metering device according to claim 2, characterized in that: The seed cleaning support (3) has an arc-shaped block structure.

4. The electrically driven controlled seed cleaning and metering device according to claim 2, characterized in that: The seed cleaning wheel set includes at least one seed cleaning wheel (4), and each seed cleaning wheel (4) is fixedly installed on the seed cleaning bracket (3).

5. The electrically driven controlled seed cleaning and metering device according to claim 4, characterized in that: The seed cleaning wheel assembly includes multiple seed cleaning wheels (4), which are fixedly installed on the seed cleaning bracket (3) at uniform intervals around the circumference.

6. The electrically driven controlled seed cleaning and metering device according to claim 4, characterized in that: Each of the seed cleaning wheels (4) has an L-shaped rod structure, with one end extending radially along the seed disc (1) and fixedly connected to the seed cleaning support (3); the other end of each seed cleaning wheel (4) extends axially along the seed disc (1), and the end face of the other end has a disc-shaped structure and is close to the seed disc (1).

7. The electrically driven controlled seed cleaning and metering device according to any one of claims 2-6, characterized in that: The drive assembly includes a stepper motor (5), a gear (6) and an arc rack (7). The arc rack (7) is fixedly mounted on the seed cleaning bracket (3). The stepper motor (5) is fixedly installed, and the gear (6) is coaxially fixedly sleeved on the drive end of the stepper motor (5) and meshes with the arc rack (7).

8. The electrically driven controlled seed cleaning and metering device according to any one of claims 2-6, characterized in that: The drive assembly includes a stepper motor (5) and a cam (8). The stepper motor (5) is fixedly installed. The cam (8) is fixedly connected to the drive end of the stepper motor (5) and fixedly connected to one end of a lever. The other end of the lever extends into the cam groove (9) on the seed cleaning bracket (3).

9. The electrically driven controlled seed cleaning and metering device according to claim 8, characterized in that: One end of the seed cleaning bracket (3) is rotatably mounted around a shaft (10), the shaft (10) is located inside one end of the cam groove (9), and the lever is located inside the other end of the cam groove (9); the drive assembly also includes a torsion spring (11), the torsion spring (11) is sleeved outside the shaft (10), and is fixedly connected to the shaft (10) and the groove wall of the cam groove (9) respectively.

10. A seeder, characterized in that: Includes the electrically driven seed cleaning and metering device as described in any one of claims 1-9.

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