Automatic seeder for millet cultivation

Abstract

This utility model belongs to the field of automatic sowing technology for millet cultivation, specifically an automatic sowing machine for millet cultivation in situ. It includes an overall support frame, inside which a sowing component is installed. One side of the sowing component has an adjustable grooving component, and the other side has a labor-saving auxiliary component. The sowing component includes an outer shell, inside which a motor is installed. A first gear is rotatably connected to the top of the motor, and a second gear meshes with the side of the first gear. A rotating rod is fixedly connected inside the second gear, and a sowing disc is located on the side of the second gear. The outer wall of the sowing disc has grooves, and a discharge control shell is slidably connected to the outside of the sowing disc. A threaded rod is fixedly connected to the bottom of the discharge control shell. The size of the grooves can be designed according to the size of the millet seeds, so that each groove can hold an appropriate amount of seeds, further improving the sowing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of automatic seeding technology for millet cultivation, specifically an automatic seeder for planting millet. Background Technology

[0002] With the continuous advancement of agricultural modernization, the demand for mechanization and automation in agricultural production is becoming increasingly urgent. In the field of grain cultivation, the application of automatic seeders has effectively improved sowing efficiency and reduced labor costs, becoming an indispensable piece of equipment in modern agricultural production. Currently, there are many types of automatic seeders on the market, covering sowing operations for various crops. Their technical principles are mainly based on mechanical transmission, pneumatic control, or a combination of both. Through the coordinated work of key components such as seed metering devices, furrow openers, and soil covering devices, orderly sowing of seeds is achieved. These technologies have achieved good application results in the sowing of large-seed crops such as corn and wheat. However, for crops like millet with small grains and precise sowing requirements, existing technologies still have many problems that urgently need to be solved.

[0003] Chinese Patent CN202022254203.7 discloses an automatic seeder for millet cultivation, which includes a base. A rotating shaft is rotatably connected to the lower surface of the base, and wheels are fixedly connected to both ends of the rotating shaft. The upper surface of the base is simply connected to three housings. A rotating wheel is rotatably connected to the inner wall of each housing, and an opening is formed at the bottom of the housing. This automatic seeder for millet cultivation, comprising a housing, rotating wheels, a limiting block, a motor, a rotating rod, and a seed guide tube, allows seeds to enter the housing from a seed storage box along the seed delivery tube. The motor drives the rotating rod to rotate, which in turn drives the rotating wheels to rotate, allowing the seeds to fall directly into the furrows through the seed guide tube at the bottom of the housing. A covering device then covers the furrows containing the seeds, completing the sowing process. This solves the problem of uneven seed distribution, greatly improves work efficiency, and reduces seed waste.

[0004] Most existing seed metering devices use traditional hole wheel, pneumatic, or spoon-type metering structures. While these structures perform well when handling large seeds, they have significant drawbacks when dealing with small millet seeds. Hole wheel-type seed metering devices struggle to precisely match the hole size to millet grains, leading to multiple seeds entering the hole simultaneously or seeds failing to completely fill the hole, resulting in uneven metering. Pneumatic seed metering devices, while utilizing airflow to adsorb seeds, are prone to issues like weak or excessive seed adsorption due to the surface characteristics of millet seeds and the stability of the airflow, causing inconsistent sowing density. Spoon-type seed metering devices struggle to accurately control the amount of millet seeds picked up, and seeds are easily dropped or misplaced during metering due to shaking, affecting sowing quality. These problems result in generally low metering accuracy for millet sowing with existing seeders, leading to uneven seedling distribution after emergence and increasing the workload and cost of subsequent thinning and replanting.

[0005] Therefore, an automatic seeder for millet cultivation is proposed to address the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this paper addresses the issue that most current seed metering devices employ traditional hole-wheel, pneumatic, or spoon-type metering structures. While these structures perform well with large seeds, they have significant limitations when dealing with small millet seeds. Hole-wheel metering devices struggle to precisely match the hole size to millet grains, leading to multiple seeds entering the hole simultaneously or incomplete filling, resulting in uneven seeding. Pneumatic metering devices, while utilizing airflow to adsorb seeds, are prone to issues like weak or excessive seed adsorption due to the surface characteristics of millet seeds and the stability of airflow, causing inconsistent sowing density. Spoon-type metering devices struggle to accurately control the amount of millet seeds picked up, and seeds are easily dropped or misplaced during the metering process due to shaking, affecting sowing quality. These problems result in generally low seeding accuracy in current seeders when sowing millet, leading to uneven seedling distribution after emergence and increasing the workload and cost of subsequent thinning and replanting.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The automatic seeder for millet cultivation in planting areas according to this utility model includes an overall support frame, a seeding component is installed inside the overall support frame, an adjustable grooving component is installed on one side of the seeding component, and a labor-saving auxiliary component is provided on the other side of the seeding component; the seeding component includes an outer shell, a motor is installed inside the outer shell, a first gear is rotatably connected to the top of the motor, a second gear is meshed on the side of the first gear, a rotating rod is fixedly connected inside the second gear, and a seeding disc is provided on the side of the second gear. The outer wall of the seeding disc has a groove, and a discharge control shell is slidably connected to the outside of the seeding disc. A threaded rod is fixedly connected to the bottom of the discharge control shell, and an internal storage bin is rotatably connected to the outside of the threaded rod. A brush is fixedly connected to the bottom of the internal storage bin, a funnel is provided at the bottom of the brush, and a grooving plate is fixedly connected to the bottom of the funnel.

[0008] Preferably, the motor forms a transmission structure with a first gear, a second gear, and a rotating rod, and the rotating rod and the outer housing form a rotation structure.

[0009] Preferably, the discharge control shell forms a sliding structure with the outer shell through a threaded rod, and the discharge control shell forms a sliding structure with the inner storage bin. The discharge control shell and the seeding tray are arranged with their vertical central axes coincident, and the grooves are arranged at equal intervals with respect to the outer wall of the seeding tray.

[0010] Preferably, the adjustable grooving assembly includes a support plate, an electric telescopic rod is fixedly connected inside the support plate, a first connecting rod is fixedly connected to the end of the electric telescopic rod, a second connecting rod is engaged with the end of the first connecting rod, a nut is threaded onto the outer wall of the second connecting rod, and a grooving device is fixedly connected to the end of the second connecting rod.

[0011] Preferably, the grooving device forms a lifting structure with the second connecting rod, the first connecting rod, the electric telescopic rod, and the support plate, and the first connecting rod and the second connecting rod form a locking structure, and the first connecting rod and the second connecting rod are evenly connected with nuts to form a threaded structure.

[0012] Preferably, the labor-saving auxiliary component includes a top connecting block, a shock absorber is fixedly connected to the bottom end of the top connecting block, a spring is provided on the outside of the shock absorber, a bottom support block is fixedly connected to the bottom end of the spring, and a roller is rotatably connected inside the bottom support block.

[0013] Preferably, the top connecting block forms an elastic structure with the bottom support block via a spring, and the shock absorber and the spring are arranged with their vertical central axes coincident.

[0014] The advantages of this utility model are: 1. This utility model incorporates a sowing assembly. The motor, via a first and second gear, forms a transmission structure with a rotating rod. This gear transmission method efficiently and stably transmits the motor's power to the rotating rod, thereby driving the sowing disc to rotate. The gear transmission offers high efficiency and precise transmission ratio, ensuring a stable and adjustable rotational speed of the sowing disc, providing reliable power support for uniform millet sowing. Since the motor's speed can be adjusted via an external controller, the sowing disc's rotational speed can also be adjusted accordingly. This means the seeder can flexibly control the sowing speed according to different sowing needs and millet varieties, achieving precise sowing. For example, when a higher sowing density is required, the motor speed can be appropriately increased to accelerate the rotation of the sowing disc, thereby increasing the sowing quantity. The discharge control shell forms a sliding structure with the outer shell via a threaded rod, and also with the internal storage bin. This design allows the position of the discharge control shell to be adjusted vertically, thereby changing its relative position to the sowing disc. When the discharge control shell slides upward, the millet on the seeding disc is more easily discharged through the opening of the shell; conversely, when the shell slides downward, the discharge opening narrows, reducing the amount of millet discharged. This allows the seeder to precisely control the seeding rate, meeting the requirements of different seeding densities. The outer wall of the seeding disc has evenly spaced grooves to hold the millet seeds. These grooves ensure even distribution of the millet during sowing, preventing seed accumulation or missed sowing. Furthermore, the size of the grooves can be designed according to the size of the millet seeds, allowing each groove to hold an appropriate amount of seeds, further improving sowing accuracy.

[0015] 2. This utility model features an adjustable grooving component. The extension and retraction of an electric telescopic rod precisely controls the raising and lowering of the grooving device, thereby achieving accurate adjustment of the grooving depth. This electric adjustment method is more convenient and faster than traditional manual adjustment, and it enables more precise depth control, ensuring the uniformity and consistency of millet sowing depth. In actual sowing, soil hardness, moisture, and terrain undulations may vary in different plots. This adjustable grooving component can flexibly adjust the grooving depth according to the actual terrain and soil conditions. When encountering harder or softer soil, the adjustment of the electric telescopic rod ensures that the grooving device maintains a suitable soil penetration depth, guaranteeing grooving quality and improving sowing results. The first connecting rod and the second connecting rod are connected by a snap-fit ​​mechanism, allowing for flexible adjustment of the grooving device's position. When the grooving device needs to be replaced or maintained, the second connecting rod and the grooving device can be quickly disassembled simply by loosening the nut. The operation is simple and quick, which greatly improves maintenance efficiency. The second connecting rod is threaded to the first connecting rod through the nut. This threaded structure can provide a stable fastening force to ensure that the grooving device will not loosen or fall off due to vibration or external force during operation, thus ensuring the stability and reliability of the grooving assembly.

[0016] 3. This utility model incorporates a labor-saving auxiliary component. This component, consisting of a top connecting block, a shock absorber, a spring, and a bottom support block, forms an elastic structure that effectively buffers uneven ground. During sowing, the seeder may encounter potholes, stones, or other obstacles, causing the machine to bump. The synergistic action of the shock absorber and spring absorbs these impacts, reducing machine vibration and improving operational comfort and stability. The shock absorber and spring are aligned with their vertical central axes, ensuring the seeder remains relatively level when traversing uneven ground. This is crucial for uniform sowing depth and quality, as a level seeder ensures the furrow opener and sowing components operate at a consistent depth and position, preventing inconsistent sowing depth or uneven seed distribution caused by machine tilting. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present utility model from the front view; Figure 2 This is a three-dimensional structural diagram of the present invention from a top view. Figure 3 This is a cross-sectional structural diagram of the seeding component of this utility model; Figure 4 This is a schematic diagram of the opening structure of the adjustable slotted component of this utility model; Figure 5 This is a three-dimensional structural diagram of the labor-saving auxiliary component of this utility model.

[0019] In the diagram: 1. Seeding assembly; 2. Adjustable grooving assembly; 3. Labor-saving auxiliary assembly; 4. Overall support frame; 101. Outer shell; 102. Motor; 103. First gear; 104. Rotating rod; 105. Second gear; 106. Seeding tray; 107. Grooving plate; 108. Funnel; 109. Brush; 110. Groove; 111. Threaded rod; 112. Discharge control shell; 113. Internal storage bin; 201. Support plate; 202. Electric telescopic rod; 203. First connecting rod; 204. Nut; 205. Second connecting rod; 206. Grooving device; 301. Top connecting block; 302. Shock absorber; 303. Spring; 304. Bottom support block; 305. Roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Example 1 like Figure 1 The automatic seeder for millet cultivation shown includes a seeding component 1, an adjustable grooving component 2, a labor-saving auxiliary component 3, and an overall support frame 4.

[0022] Please see Figure 1 and Figure 5 An automatic seeder for millet cultivation is shown, comprising an integral support frame 4, inside which a seeding component 1 is installed. An adjustable grooving component 2 is installed on one side of the seeding component 1, and a labor-saving auxiliary component 3 is provided on the other side of the seeding component 1. The seeding component 1 includes an outer shell 101, inside which a motor 102 is installed. A first gear 103 is rotatably connected to the top of the motor 102, and a second gear 105 meshes with the side of the first gear 103. A rotating rod 104 is fixedly connected inside the second gear 105, and a seeding disc 106 is provided on the side of the second gear 105. A groove 110 is formed on the outer wall of the seeding disc 106, and a discharge control shell 112 is slidably connected to the outside of the seeding disc 106. The bottom of the discharge control shell 112... A threaded rod 111 is fixedly connected to the end of the inner storage bin 113, which is rotatably connected to the outside of the threaded rod 111. A brush 109 is fixedly connected to the bottom of the inner storage bin 113, and a funnel 108 is provided at the bottom of the brush 109. A slotted plate 107 is fixedly connected to the bottom of the funnel 108. The motor 102 forms a transmission structure with the rotating rod 104 through the first gear 103 and the second gear 105. The rotating rod 104 forms a rotation structure with the outer shell 101. The discharge control shell 112 forms a sliding structure with the outer shell 101 through the threaded rod 111. The discharge control shell 112 forms a sliding structure with the inner storage bin 113. The discharge control shell 112 and the seeding tray 106 are arranged with their vertical central axes coincident. The grooves 110 are arranged at equal intervals with respect to the outer wall of the seeding tray 106.

[0023] Please see Figure 4The automatic seeder for millet cultivation shown includes an adjustable grooving component 2 comprising a support plate 201. An electric telescopic rod 202 is fixedly connected inside the support plate 201, and a first connecting rod 203 is fixedly connected to the end of the electric telescopic rod 202. A second connecting rod 205 is engaged at the end of the first connecting rod 203. A nut 204 is threadedly connected to the outer wall of the second connecting rod 205, and a grooving device 206 is fixedly connected to the end of the second connecting rod 205. The grooving device 206 forms a lifting structure with the support plate 201 through the second connecting rod 205, the first connecting rod 203, the electric telescopic rod 202, and the support plate 201. The first connecting rod 203 and the second connecting rod 205 form an engaging structure, and the first connecting rod 203, the second connecting rod 205, and the nut 204 form a threaded structure.

[0024] Please see Figure 5 The automatic seeder for millet cultivation shown includes a labor-saving auxiliary component 3, which includes a top connecting block 301. A shock absorber 302 is fixedly connected to the bottom end of the top connecting block 301, and a spring 303 is provided on the outside of the shock absorber 302. A bottom support block 304 is fixedly connected to the bottom end of the spring 303, and a roller 305 is rotatably connected inside the bottom support block 304. The top connecting block 301 and the bottom support block 304 form an elastic structure through the spring 303, and the shock absorber 302 and the spring 303 are arranged with their vertical central axes coincident.

[0025] Working Principle: After the seeder is started, the overall support frame 4 carries all components and moves smoothly across the planting area. At this time, the motor 102 in the seeding component 1 starts to run, and the first gear 103, which is rotatably connected to its top, rotates accordingly. Through meshing, it drives the second gear 105 to rotate, which in turn causes the rotating rod 104 fixed inside the second gear 105 to rotate. The rotating rod 104 drives the seeding disc 106 on the side to start rotating. During the rotation, the grooves 110, which are evenly spaced on the outer wall of the seeding disc 106, scoop up millet seeds from the internal storage bin 113. At the same time, the brush 109 fixedly connected to the bottom sweeps away excess seeds from the edges of the grooves 110 to ensure that each groove 110 holds only a single seed. The operator can rotate the threaded rod 111 to make the discharge control housing 112, which is fixedly connected to the threaded rod 111, slide within the outer housing 101, adjust the relative position of the discharge control housing 112 and the seeding disc 106, thereby controlling the amount of seeds discharged to meet different planting needs. When the seeding tray 106 rotates to a specific position, the seeds in the groove 110 fall into the flushing plate 107 through the funnel 108 under the action of gravity.

[0026] While the sowing assembly 1 is planting seeds, the adjustable grooving assembly 2 operates synchronously. The electric telescopic rod 202 within the support plate 201 extends or retracts according to the preset sowing depth or real-time soil conditions, pushing the first connecting rod 203 to move. The second connecting rod 205, which is engaged at the end of the first connecting rod 203, moves accordingly. The operator can adjust the relative position of the first connecting rod 203 and the second connecting rod 205 by tightening or loosening the nut 204, further fine-tuning the grooving depth, ultimately driving the groover 206 at the end to create a seed furrow of suitable depth in the soil. After the seed furrow is created, the flushing plate 107 precisely places the seeds into the furrow.

[0027] The labor-saving auxiliary component 3 provides assistance and stability for the seeder's movement. The top connecting block 301 is connected to the bottom support block 304 via a shock absorber 302. A spring 303 is fitted onto the outside of the shock absorber 302. When the seeder travels on uneven ground, the roller 305, which is rotatably connected inside the bottom support block 304, contacts the ground. The elastic structure formed by the spring 303 and the shock absorber 302 then absorbs the impact of the ground, reducing the overall machine's vibration and the force required for the operator to push the seeder. At the same time, it ensures the stable operation of the sowing component 1 and the adjustable grooving component 2, guaranteeing the accuracy and quality of sowing. Throughout the sowing process, the components work closely together to achieve automated and precise operation of millet from furrowing and seeding to initial soil covering and light soil covering by the grooving plate 107.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic seeder for millet cultivation, characterized in that: The system includes an overall support frame (4), inside which a seeding component (1) is installed, and an adjustable grooving component (2) is installed on one side of the seeding component (1), and a labor-saving auxiliary component (3) is provided on the other side of the seeding component (1). The sowing assembly (1) includes an outer housing (101), inside which a motor (102) is installed. A first gear (103) is rotatably connected to the top of the motor (102). A second gear (105) meshes with the side of the first gear (103). A rotating rod (104) is fixedly connected inside the second gear (105). A sowing disc (106) is provided on the side of the second gear (105). The outer wall of the sowing disc (106) has an opening. The groove (110) and the seeding tray (106) are slidably connected to the discharge control shell (112). The bottom end of the discharge control shell (112) is fixedly connected to the threaded rod (111). The threaded rod (111) is rotatably connected to the internal storage bin (113). The bottom of the internal storage bin (113) is fixedly connected to the brush (109). The bottom of the brush (109) is provided with a funnel (108). The bottom end of the funnel (108) is fixedly connected to the punching plate (107).

2. The automatic seeder for millet cultivation according to claim 1, characterized in that: The motor (102) forms a transmission structure with the first gear (103), the second gear (105) and the rotating rod (104), and the rotating rod (104) forms a rotation structure with the outer shell (101).

3. The automatic seeder for millet cultivation according to claim 1, characterized in that: The discharge control shell (112) forms a sliding structure with the outer shell (101) through the threaded rod (111), and the discharge control shell (112) forms a sliding structure with the inner storage bin (113). The discharge control shell (112) and the seeding tray (106) are arranged with their vertical central axes coincident, and the grooves (110) are arranged at equal intervals with respect to the outer wall of the seeding tray (106).

4. The automatic seeder for millet cultivation according to claim 1, characterized in that: The adjustable grooving assembly (2) includes a support plate (201), an electric telescopic rod (202) is fixedly connected inside the support plate (201), a first connecting rod (203) is fixedly connected to the end of the electric telescopic rod (202), a second connecting rod (205) is engaged at the end of the first connecting rod (203), a nut (204) is threadedly connected to the outer wall of the second connecting rod (205), and a grooving device (206) is fixedly connected to the end of the second connecting rod (205).

5. The automatic seeder for millet cultivation according to claim 4, characterized in that: The slotter (206) forms a lifting structure with the second connecting rod (205), the first connecting rod (203), the electric telescopic rod (202) and the support plate (201), and the first connecting rod (203) and the second connecting rod (205) form a locking structure, and the first connecting rod (203) and the second connecting rod (205) form a threaded structure with the nuts (204) evenly distributed.

6. The automatic seeder for millet cultivation according to claim 1, characterized in that: The labor-saving auxiliary component (3) includes a top connecting block (301), a shock absorber (302) is fixedly connected to the bottom end of the top connecting block (301), and a spring (303) is provided on the outside of the shock absorber (302). A bottom support block (304) is fixedly connected to the bottom end of the spring (303), and a roller (305) is rotatably connected inside the bottom support block (304).

7. The automatic seeder for millet cultivation according to claim 6, characterized in that: The top connecting block (301) forms an elastic structure with the bottom support block (304) via the spring (303), and the shock absorber (302) and the spring (303) are arranged with their vertical central axes overlapping.

Images