Duckbilled opening and closing device of seeder

Abstract

The utility model relates to the field of seeding machines, in particular to a seeding machine duckbilled opening and closing device which comprises a rack, a duckbilled swing arm and a driving device used for driving the duckbilled swing arm to swing are mounted on a mounting plate mounted on the rack, and a duckbilled assembly is mounted at one end of the duckbilled swing arm and comprises a hopper body. The seeding machine duckbill opening and closing device comprises a hopper body, a fixed duckbill plate is fixed to the bottom of the hopper body, the bottom of the hopper body is rotationally connected with a movable duckbill plate through a connecting shaft, the movable duckbill plate is matched with the fixed duckbill plate, and a reset spring is installed between the movable duckbill plate and the fixed duckbill plate. The duckbill swing arm and the duckbill assembly are driven by the driving device to swing, so that opening and closing actions of the duckbill are realized. By means of the design, the seeding process is more efficient, the seeding speed can be greatly increased, and meanwhile the complexity and time cost of manual operation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of seeders, specifically to a duckbill opening and closing device for a seeder. Background Technology

[0002] The existing seeder's duckbill opening and closing mechanism is relatively complex, requiring an independent drive structure to complete the opening and closing. The opening and closing is unreliable, and the duckbill opening and closing action is slow, thus reducing the sowing speed.

[0003] Therefore, it is necessary to provide a seeder duckbill opening and closing device to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a duckbill opening and closing device for a seeder.

[0005] This utility model provides a seeder's duckbill opening and closing device, including a frame, on which a duckbill swing arm and a drive device for driving the duckbill swing arm to swing are mounted on an mounting plate. A duckbill assembly is mounted on one end of the duckbill swing arm. The duckbill assembly includes a bucket body, and a fixed duckbill plate is fixed to the bottom of the bucket body. A movable duckbill plate is rotatably connected to the bottom of the bucket body through a connecting shaft, and the movable duckbill plate cooperates with the fixed duckbill plate. A return spring is installed between the movable duckbill plate and the fixed duckbill plate. The drive device includes a rotating shaft, on which a cam is fixed. An arc-shaped arm is hinged to the mounting plate. The cam cooperates with the middle part of the arc-shaped arm. A steel wire rope is fixed to the end of the arc-shaped arm, and the end of the steel wire rope away from the arc-shaped arm is fixedly connected to the movable duckbill plate.

[0006] Preferably, the movable duckbill plate is rotatably connected to a roller at its center, and the roller cooperates with a cam.

[0007] Preferably, under the action of gravity, the roller of the arc-shaped arm is always in contact with the cam.

[0008] Preferably, the drive device further includes a motor fixed on the mounting plate, the output shaft of the motor is fixed with a drive sprocket, the connecting shaft is fixed with a driven sprocket, the driven sprocket and the drive sprocket are connected by a chain, the output shaft of the motor is fixed with a first crank, the first crank is provided with a waist-shaped hole, the end of the duckbill swing arm is connected with a connecting post, the connecting post is installed in the waist-shaped hole, the connecting shaft is fixed with a second crank, the end of the second crank is hinged with a connecting rod, the end of the connecting rod is hinged to the middle of the duckbill swing arm.

[0009] Preferably, the connecting column is installed in the oblong hole by bolts.

[0010] Working principle: When the motor starts, its output shaft drives the drive sprocket to rotate, which in turn drives the driven sprocket and connecting shaft to rotate via a chain. The rotation of the connecting shaft then drives the second crank and connecting rod to move, thereby driving the duckbill swing arm to swing. At the same time, the rotating shaft rotates together with the motor's output shaft, driving the cam to rotate. The rotation of the cam pushes the arc-shaped arm to swing, and the arc-shaped arm pulls the movable duckbill plate through a steel cable to achieve the opening and closing action. The cam periodically drives the movable duckbill plate to open and close, realizing the sowing of seedlings.

[0011] Compared with related technologies, the present invention provides the following beneficial effects:

[0012] High-efficiency sowing: This device uses a drive mechanism to swing the duckbill arm and duckbill assembly, thereby achieving the opening and closing action of the duckbill. This design makes the sowing process more efficient, significantly increasing the sowing speed while reducing the complexity and time cost of manual operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of one side of the mounting plate of this utility model;

[0015] Figure 3 This is a schematic diagram of the other side of the mounting plate of this utility model.

[0016] The diagram shows the following components: 1. Seeder's duckbill opening and closing device; 2. Frame; 3. Mounting plate; 4. Duckbill swing arm; 5. Drive device; 6. Duckbill assembly; 7. Bucket body; 8. Fixed duckbill plate; 9. Connecting shaft; 10. Movable duckbill plate; 11. Return spring; 12. Rotating shaft; 13. Cam; 14. Arc arm; 15. Steel wire rope; 16. Roller; 17. Electric motor; 18. Drive sprocket; 19. Driven sprocket; 21. First crank; 22. Waist-shaped hole; 23. Connecting column; 24. Second crank; 25. Connecting rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to 1- Figure 3A seeder's duckbill opening and closing device 1 mainly comprises a frame 2, on which a mounting plate 3 is securely mounted. A duckbill swing arm 4 and a drive device 5 for driving its swing are cleverly arranged on the mounting plate 3. One end of the duckbill swing arm 4 is cleverly connected to a duckbill assembly 6, the core of which is a bucket body 7. A fixed duckbill plate 8 is firmly fixed to the bottom of the bucket body 7. At the bottom of the bucket body 7, a movable duckbill plate 10 is flexibly rotatably connected via a connecting shaft 9. This movable duckbill plate 10 and the fixed duckbill plate 8 work closely together to complete the opening and closing task. A return spring 11 is also specially installed between the movable duckbill plate 10 and the fixed duckbill plate 8 to ensure that the movable duckbill plate 10 can smoothly return to its original position after swinging.

[0019] The drive unit 5 is also ingeniously designed, comprising a rotating shaft 12 on which a cam 13 is securely fixed. An arc-shaped arm 14 is cleverly hinged to the mounting plate 3, its middle section closely engaging with the cam 13. A steel wire rope 15 is securely fixed to the end of the arc-shaped arm 14, and the other end of the steel wire rope 15 is tightly connected to the movable duckbill plate 10. This design allows the cam 13 to rotate, pushing the arc-shaped arm 14 to swing, which in turn pulls the movable duckbill plate 10 via the steel wire rope 15, thus opening and closing the device.

[0020] To further optimize the coordination, a roller 16 is flexibly connected to the middle of the movable duckbill plate 10. This roller 16 closely engages with the cam 13, reducing friction and improving the smoothness of transmission. Under the influence of gravity, the arc-shaped arm 14 can always maintain close contact between the roller 16 and the cam 13, thereby ensuring the continuity and stability of the transmission.

[0021] In addition, the drive unit 5 also includes a motor 17 fixed to the mounting plate 3. The output shaft of the motor 17 firmly fixes the drive sprocket 18, while the driven sprocket 19 is fixed to the connecting shaft 9. The drive sprocket 18 and the driven sprocket 19 are tightly connected by a chain, achieving stable power transmission. The output shaft of the motor 17 also cleverly fixes the first crank 21, which has a specially designed waist-shaped hole 22. The end of the duckbill swing arm 4 is connected to a connecting post 23, which is cleverly installed in the waist-shaped hole 22, allowing the duckbill swing arm 4 to swing flexibly within a certain range. At the same time, a second crank 24 is also fixed to the connecting shaft 9, and the end of the second crank 24 is hinged to a connecting rod 25, the end of which is tightly connected to the middle of the duckbill swing arm 4. This design not only achieves flexible swinging of the duckbill swing arm 4, but also greatly improves the stability and reliability of the transmission.

[0022] The working principle is quite simple and efficient: When the motor 17 starts, its output shaft drives the drive sprocket 18 to rotate steadily, which in turn drives the driven sprocket 19 and the connecting shaft 9 to rotate together via a chain. The rotation of the connecting shaft 9, in turn, drives the second crank 24 and the connecting rod 25 to move flexibly, thereby driving the duckbill swing arm 4 to swing. At the same time, the rotating shaft 12 rotates steadily along with the output shaft of the motor 17, thereby driving the cam 13 to rotate. The rotation of the cam 13 pushes the arc-shaped arm 14 to swing, and the arc-shaped arm 14 pulls the movable duckbill plate 10 through the steel wire rope 15 to achieve the opening and closing action. The periodic rotation of the cam 13 drives the movable duckbill plate 10 to open and close, thereby accurately achieving the sowing of seedlings.

[0023] 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 duckbill opening and closing device for a seeder, characterized in that, The device includes a frame (2), on which a mounting plate (3) is mounted, and a duckbill swing arm (4) and a drive device (5) for driving the duckbill swing arm (4) to swing are mounted. A duckbill assembly (6) is mounted on one end of the duckbill swing arm (4). The duckbill assembly (6) includes a bucket body (7). A fixed duckbill plate (8) is fixed to the bottom of the bucket body (7). A movable duckbill plate (10) is rotatably connected to the bottom of the bucket body (7) through a connecting shaft (9), and the movable duckbill plate (10) is matched with the fixed duckbill plate (8). A return spring (11) is installed between the movable duckbill plate (10) and the fixed duckbill plate (8). The drive device (5) includes a rotating shaft (12), a cam (13) is fixed on the rotating shaft (12), and an arc arm (14) is hinged on the mounting plate (3). The cam (13) cooperates with the middle part of the arc arm (14). A steel wire rope (15) is fixed at the end of the arc arm (14), and the end of the steel wire rope (15) away from the arc arm (14) is fixedly connected to the movable duckbill plate (10).

2. The seeder duckbill opening and closing device (1) according to claim 1, characterized in that, The movable duckbill plate (10) is rotatably connected to a roller (16) in the middle, and the roller (16) cooperates with the cam (13).

3. The seeder duckbill opening and closing device (1) according to claim 2, characterized in that, Under the influence of gravity, the roller (16) of the arc arm (14) is always in contact with the cam (13).

4. The seeder duckbill opening and closing device (1) according to claim 3, characterized in that, The drive device (5) also includes a motor (17) fixed on the mounting plate (3). The output shaft of the motor (17) is fixed with a drive sprocket (18). A driven sprocket (19) is fixed on the connecting shaft (9). The driven sprocket (19) and the drive sprocket (18) are connected by a chain. The output shaft of the motor (17) is fixed with a first crank (21). The first crank (21) is provided with a waist-shaped hole (22). The end of the duckbill swing arm (4) is connected with a connecting post (23). The connecting post (23) is installed in the waist-shaped hole (22). A second crank (24) is fixed on the connecting shaft (9). A connecting rod (25) is hinged to the end of the second crank (24). The end of the connecting rod (25) is hinged to the middle of the duckbill swing arm (4).

5. The seeder duckbill opening and closing device (1) according to claim 4, characterized in that, The connecting column (23) is installed in the waist-shaped hole (22) by bolts.

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