Intelligent control device for accurate seeding of straw

Abstract

The utility model discloses a kind of straw precision seeding intelligent control device, it is related to agricultural seeding equipment technical field, including seeding mesa, the mounting frame is installed below seeding mesa, seeding mesa is provided with seeding mechanism and drive mechanism, seeding mechanism includes the circular groove of seeding mesa opening, the upper and lower of circular groove are sequentially installed with the seed sowing barrel and discharge hopper that are interconnected, the upper surface of seeding mesa is symmetrically installed with two fixed columns, the opposite side of fixed column is rotatably connected with rotating rod, the middle section of rotating rod is sleeved with half gear, the side of half gear is engaged with rack, the top of rack is installed with connecting strip, the bottom of the end of connecting strip away from rack is installed with sliding column;In the utility model, through the engagement design cooperation reset spring of half gear and rack, the periodic up-and-down movement of sliding column and sealing block is realized, the falling timing and frequency of seed are accurately controlled, avoid seed accumulation or miss sowing.

Description

Technical Field

[0001] This utility model relates to the field of agricultural sowing equipment technology, specifically to an intelligent control device for precise sowing of grains and straw. Background Technology

[0002] Agriculture, as a fundamental industry of the national economy, directly affects the country's food security and social stability through its production efficiency and crop yield. Sowing is a crucial step in agricultural production, and the quality of sowing has a decisive impact on the growth, development, yield, and quality of crops. Precise, uniform, and efficient sowing not only makes full use of land resources but also creates favorable conditions for subsequent field management, thereby improving the overall yield and quality of crops. Cereal crops, as important sources of food and feed, occupy an important position in agricultural production.

[0003] Currently, some regions still rely on manual planting to complete sowing operations. Due to the influence of various factors such as individual differences, labor intensity, and fatigue levels on the precision and stability of manual operation, it is difficult to ensure that the spacing between seeds is uniform during the sowing process. Uneven sowing spacing can lead to competition for light, water, and fertilizer among crops during their growth. Some plants may develop poorly due to insufficient growing space, while in other areas, sparse planting can waste land resources. Ultimately, this results in low sowing efficiency and difficulty in achieving ideal sowing uniformity, which seriously affects the yield and quality of cereal and straw crops. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent control device for precise sowing of grains and straw, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a precise seeding intelligent control device for hay, including a seeding platform, an mounting frame installed below the seeding platform, a seeding mechanism and a driving mechanism on the seeding platform, the seeding mechanism including a circular groove opened in the seeding platform, a seeding cylinder and a discharge hopper connected to each other installed sequentially above and below the circular groove, two fixed columns symmetrically installed on the upper surface of the seeding platform, a rotating rod rotatably connected to the opposite side of the fixed columns, a half gear sleeved in the middle section of the rotating rod, a rack meshing on the side of the half gear, a connecting strip installed at the top of the rack, a sliding column installed at the bottom of the connecting strip away from the rack, a return spring sleeved on the sliding column, a crossbar fixedly installed at the top of the seeding cylinder, the two ends of the return spring being fixedly connected to the connecting strip and the crossbar respectively, the bottom end of the sliding column extending to the bottom of the discharge hopper, a sealing mechanism provided at the bottom of the discharge hopper, and a sealing block installed at the bottom end of the sliding column.

[0006] Furthermore, the sealing mechanism includes a guide cylinder connected to the bottom end of the discharge hopper, and a discharge head extending through to the bottom of the guide cylinder is connected to the center of the inside of the guide cylinder. The sealing block is truncated cone in shape, and the bottom surface of the sealing block is in contact with the inner wall of the discharge head.

[0007] Furthermore, a sealing gasket is installed on the outer arc wall of the sealing block, and the sealing block is made of stainless steel.

[0008] Furthermore, the driving mechanism includes a servo motor fixedly mounted on the upper surface of the seeding platform. The drive shaft of the servo motor is fixedly connected to two pulleys. The two pulleys are rotatably connected to the upper and lower sides of one of the fixed columns. A belt connects the two pulleys and drives them together. The rotating rod is fixedly connected to the other pulley.

[0009] Furthermore, a vertically penetrating fixed slide is fixedly installed on the upper surface of the sowing platform, and the rack is slidably connected to the inner side wall of the fixed slide.

[0010] Furthermore, an opening rod is installed at the bottom of the sealing block, and a feeding pipe is connected to the outer arc wall of the seeding cylinder.

[0011] Furthermore, a storage box is installed on the upper surface of the sowing platform, and a PLC controller is installed on the upper surface of the sowing platform. The PLC controller is electrically connected to the servo motor.

[0012] Furthermore, casters are installed at the four bottom corners of the mounting bracket, and handles are installed on the top side wall of the mounting bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a half-gear and rack meshing design in conjunction with a return spring to realize the periodic up and down movement of the sliding column and sealing block, accurately controlling the timing and frequency of seed falling, and avoiding seed accumulation or missed sowing.

[0015] 2. This utility model uses a stainless steel sealing block that fits tightly against the inner wall of the discharge head. When closed, it forms a double seal with the bottom surface fitting and the side wall sealing gasket. When opened, the seeds fall evenly along the guide channel, reducing the risk of blockage and ensuring a stable sowing rate. The perforated rod at the bottom of the sealing block is inserted into the soil simultaneously during sowing to form a seed guide hole, ensuring that the seeds fall to the predetermined depth and improving the uniformity of seedling emergence. The design of the universal wheels and handles facilitates turning and pushing in the field and adapts to complex terrain. Attached Figure Description

[0016] Figure 1 A schematic diagram of the main structure of a smart control device for precise seeding of rice and straw;

[0017] Figure 2 This is a schematic diagram of the drive mechanism and the meshing of the rack and pinion in a smart control device for precise seeding of cereals and straw.

[0018] Figure 3 This is a schematic diagram of the internal structure of a seeding cylinder in a precision crop and straw seeding intelligent control device.

[0019] Figure 4 This is a schematic diagram of the structure below the feed cylinder in a smart control device for precise sowing of rice and straw.

[0020] In the picture:

[0021] 1. Seeding platform; 2. Mounting frame; 3. Casters; 4. Handle; 5. Seeding cylinder; 6. Storage box; 7. Fixing column; 8. Rotating rod; 9. Half gear; 10. Pulley; 11. Belt; 12. Servo motor; 13. Fixed slide; 14. Rack; 15. Connecting strip; 16. Sliding column; 17. Return spring; 18. Feeding pipe; 19. Discharge hopper; 20. Guide cylinder; 21. Discharge head; 22. Sealing block; 23. Perforation rod. Detailed Implementation

[0022] 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 protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] See Figure 1 and Figure 2As shown, a precise straw sowing intelligent control device includes a sowing platform 1, an mounting frame 2 installed below the sowing platform 1, a sowing mechanism and a drive mechanism on the sowing platform 1, the sowing mechanism including a circular groove on the sowing platform 1, a sowing cylinder 5 and a discharge hopper 19 connected to each other installed above and below the circular groove, two fixed columns 7 symmetrically installed on the upper surface of the sowing platform 1, a rotating rod 8 rotatably connected to the opposite side of the fixed columns 7, a half gear 9 sleeved in the middle section of the rotating rod 8, and a rack 14 meshing with the side of the half gear 9, the upper surface of the sowing platform 1 being fixed... A fixed slide block 13 is fixedly installed vertically. A rack 14 is slidably connected to the inner wall of the fixed slide block 13. A connecting strip 15 is installed at the top of the rack 14. A sliding column 16 is installed at the bottom of the end of the connecting strip 15 away from the rack 14. A return spring 17 is sleeved on the sliding column 16. A horizontal bar is fixedly installed at the top of the seeding cylinder 5. The two ends of the return spring 17 are fixedly connected to the connecting strip 15 and the horizontal bar, respectively. The bottom end of the sliding column 16 extends through to the bottom of the discharge hopper 19. A sealing mechanism is provided at the bottom end of the discharge hopper 19. A sealing block 22 is installed at the bottom end of the sliding column 16.

[0025] In the specific implementation process, the drive mechanism drives the rotating rod 8 to rotate, causing the half gear 9 to rotate synchronously. The half gear 9 meshes with the rack 14, pushing the rack 14 to slide downward along the fixed slide block 13. Through the connecting strip 15, the sliding column 16 is pushed down, compressing the return spring 17. The sealing block 22 at the bottom of the sliding column 16 then descends, releasing the seal on the bottom of the discharge hopper 19. Seeds fall from the sowing cylinder 5 into the field through the discharge hopper 19. When the toothless part of the half gear 9 turns to the rack 14, the meshing effect disappears, the return spring 17 rebounds, pushing the sliding column 16 and the sealing block 22 upward, resealing the bottom of the discharge hopper 19, stopping the sowing. The rack 14 resets under the action of the return spring 17, preparing for the next sowing cycle.

[0026] See Figure 3 and Figure 4As shown, the sealing mechanism includes a guide cylinder 20 connected to the bottom end of the discharge hopper 19, a discharge head 21 extending through to the bottom of the guide cylinder 20 and connected to the center of the inside of the guide cylinder 20, a sealing block 22 in the shape of a frustum, the bottom surface of the sealing block 22 being in contact with the inner wall of the discharge head 21, a sealing gasket being installed on the outer arc wall of the sealing block 22, and the sealing block 22 being made of stainless steel. In the specific implementation process, the bottom end of the discharge hopper 19 is connected to the guide cylinder 20. The guide cylinder 20 has a vertically penetrating discharge head 21 in the center, forming a channel for seeds to fall. The frustum-shaped sealing block 22 is opened and closed by the up and down movement of the sliding column 16. When closed, the bottom surface of the sealing block 22 is tightly fitted with the inner wall of the discharge head 21. With the help of the sealing gasket made of rubber or silicone material on the outer arc wall, the seeds are doubly blocked from falling. When open, the sealing block 22 moves down and separates from the discharge head 21. The seeds fall accurately into the field through the guide cylinder 20 and the discharge head 21. The sealing block 22 is made of stainless steel, which has both corrosion resistance and high strength. It is not easily deformed after long-term use. The sealing block 22 has equally spaced guide channels around its perimeter. Combined with its frustum-shaped structure and the smooth inner wall of the guide cylinder 20, it reduces seed residue and avoids blockage. The sealing gasket is removable and replaceable, making maintenance convenient.

[0027] See Figure 1 and Figure 2 As shown, the drive mechanism includes a servo motor 12 fixedly mounted on the upper surface of the sowing platform 1. The drive shaft of the servo motor 12 is fixedly connected to two pulleys 10. These two pulleys 10 are rotatably connected to the upper and lower sides of one of the fixed columns 7. A belt 11 connects the two pulleys 10 and drives their transmission. A rotating rod 8 is fixedly connected to the other pulley 10. In practice, after the servo motor 12 starts, the drive shaft drives the pulley 10 fixedly connected to it to rotate. Through the belt 11, the other pulley 10 rotates synchronously, thereby driving the rotating rod 8 fixedly connected to it to rotate. The rotating rod 8 drives the half-gear 9 to periodically mesh with the rack 14, realizing the reciprocating motion of the sliding column 16 and the sealing block 22, controlling the sowing start and stop. The two pulleys 10 are located above and below the fixed column 7 respectively, forming a closed-loop transmission through the belt 11 to ensure stable power transmission. The servo motor 12 is directly connected to the driving wheel, and the driven wheel is fixed to the rotating rod 8, resulting in a compact structure and reduced energy loss.

[0028] See Figure 1 and Figure 4As shown, a perforated rod 23 is installed at the bottom of the sealing block 22, a feeding pipe 18 is connected to the outer arc wall of the seeding cylinder 5, a storage box 6 is installed on the upper surface of the seeding platform 1, a PLC controller is installed on the upper surface of the seeding platform 1, the PLC controller is electrically connected to the servo motor 12, casters 3 are installed at the four corners of the bottom of the mounting frame 2, and a handle 4 is installed on the top side wall of the mounting frame 2. In the specific implementation process, the perforating rod 23 is vertically fixed to the bottom of the sealing block 22 and inserted into the soil during sowing to pre-form seed guide holes, ensuring that the seeds fall accurately to the predetermined depth and improving the uniformity of seedling emergence. The feeding pipe 18 is connected to the outer wall of the sowing cylinder 5 and can be used as a feeding channel to realize continuous reseeding and reduce the frequency of stopping for feeding. The PLC controller is installed on the upper surface of the sowing table 1 and is electrically connected to the servo motor 12. It adjusts the motor speed in real time to control the sowing frequency and realizes automated operation. After receiving the PLC command, the servo motor 12 dynamically adjusts the speed of the pulley 10, thereby accurately controlling the rotation cycle of the half gear 9 and finally adjusting the opening and closing frequency of the sealing block 22. The universal wheels 3 are installed at the four corners of the bottom of the mounting frame 2, supporting 360° rotation, which is convenient for flexible movement in the field. The handle 4 is convenient for manual pushing or turning operations.

[0029] It should be noted that an encoder sensor is installed on the caster wheel 3. The moving distance is calculated by detecting the number of rotations or angles of the caster wheel 3. The PLC controller receives the pulse signal from the encoder in real time and precisely controls the start and stop timing of sowing according to the preset sowing spacing parameters to ensure that the set distance is maintained between each sowing.

[0030] Working principle:

[0031] Step 1: After the servo motor 12 starts, it drives the rotating rod 8 to rotate through the pulley 10 and belt 11. The half gear 9 fixed on the rotating rod 8 moves accordingly, and its teeth periodically mesh with the rack 14, converting the rotational motion into the linear reciprocating motion of the rack 14. When the half gear 9 meshes with the rack 14, it pushes the rack 14 down along the fixed slide 13, which drives the sliding column 16 and the sealing block 22 to press down through the connecting bar 15, compressing the return spring 17. At this time, the frustum-shaped sealing block 22 disengages from the discharge head 21, and the seeds fall from the sowing cylinder 5 through the guide cylinder 20 and the discharge head 21 into the field. The perforated rod 23 at the bottom of the sealing block is inserted into the pre-formed seed guide hole in the soil to ensure consistent sowing depth. When the toothless part of the half gear 9 turns to the rack 14, the meshing effect disappears, the return spring 17 rebounds, pushes the sealing block 22 up to re-close the discharge head 21, and stops sowing. The sealing gasket fits tightly with the inner wall of the discharge head, doubly blocking the seeds from falling.

[0032] Step 2: The PLC controller adjusts the speed of the servo motor 12 and changes the rotation frequency of the half gear 9, thereby controlling the sowing interval and the amount of seeds sown per unit time. The guide channel of the sealing block 22 and the smooth inner wall of the guide cylinder 20 reduce seed residue. The stainless steel material ensures long-term resistance to deformation. The casters 3 and handles 4 facilitate movement in the field. The feed pipe 18 supports continuous reseeding. The storage box 6 stores spare seeds or tools.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A precise sowing intelligent control device for hay, comprising a sowing platform (1), wherein a mounting frame (2) is installed below the sowing platform (1), characterized in that, The sowing platform (1) is equipped with a sowing mechanism and a driving mechanism. The sowing mechanism includes a circular groove on the sowing platform (1). A sowing cylinder (5) and a discharge hopper (19) are installed above and below the circular groove in sequence. Two fixed columns (7) are symmetrically installed on the upper surface of the sowing platform (1). A rotating rod (8) is rotatably connected to the opposite side of the fixed column (7). A half gear (9) is sleeved in the middle section of the rotating rod (8). A rack (14) meshes with the side of the half gear (9). A toothed rack (14) is installed at the top of the rack (14). A connecting bar (15) is provided with a sliding column (16) at the bottom of the end of the connecting bar (15) away from the rack (14). A return spring (17) is sleeved on the sliding column (16). A horizontal bar is fixedly installed on the top of the seeding cylinder (5). The two ends of the return spring (17) are fixedly connected to the connecting bar (15) and the horizontal bar, respectively. The bottom end of the sliding column (16) extends through to the bottom of the discharge hopper (19). A sealing mechanism is provided at the bottom end of the discharge hopper (19). A sealing block (22) is installed at the bottom end of the sliding column (16).

2. The intelligent control device for precise sowing of cereal straw as described in claim 1, characterized in that: The sealing mechanism includes a guide cylinder (20) connected to the bottom end of the discharge hopper (19), and a discharge head (21) extending through to the bottom of the guide cylinder (20) is connected to the center of the inside of the guide cylinder (20). The sealing block (22) is shaped like a frustum, and the bottom surface of the sealing block (22) is in contact with the inner wall of the discharge head (21).

3. The intelligent control device for precise sowing of rice and straw as described in claim 2, characterized in that: The outer arc wall of the sealing block (22) is equipped with a sealing gasket, and the sealing block (22) is made of stainless steel.

4. The intelligent control device for precise sowing of rice and straw as described in claim 3, characterized in that: The driving mechanism includes a servo motor (12) fixedly installed on the upper surface of the seeding platform (1). The drive shaft of the servo motor (12) is fixedly connected to a pulley (10). There are two pulleys (10). The two pulleys (10) are rotatably connected to one of the fixed columns (7) above and below. A belt (11) is connected between the two pulleys (10) and the two pulleys are connected by transmission through the belt (11). The rotating rod (8) is fixedly connected to the other pulley (10).

5. The intelligent control device for precise sowing of cereal straw as described in claim 4, characterized in that: The upper surface of the seeding platform (1) is fixedly equipped with a vertically penetrating fixed slide (13), and the rack (14) is slidably connected to the inner side wall of the fixed slide (13).

6. The intelligent control device for precise sowing of cereal straw as described in claim 5, characterized in that: The bottom of the sealing block (22) is equipped with an opening rod (23), and the outer arc wall of the seeding cylinder (5) is connected to the feeding pipe (18).

7. The intelligent control device for precise sowing of rice and straw as described in claim 6, characterized in that: A storage box (6) is installed on the upper surface of the sowing platform (1), and a PLC controller is installed on the upper surface of the sowing platform (1). The PLC controller is electrically connected to the servo motor (12).

8. The intelligent control device for precise sowing of rice and straw as described in claim 7, characterized in that: The mounting bracket (2) is equipped with casters (3) at the four corners of its bottom, and a handle (4) is installed on the top side wall of the mounting bracket (2).

Images