Quantitative seed-metering device of tractor seeder

Abstract

The utility model relates to the technical field of seeding quantification, and discloses a quantitative seed-metering device of a tractor seeder, which comprises a box body, the top end of the box body is fixedly connected with a feed hopper, the inner wall of the box body is fixedly connected with a limiting ring, the inner wall of the limiting ring is provided with a second batcher, the right end of the second batcher is provided with a first batcher, and the right end of the first batcher is provided with a second batcher. A second motor is installed on the outer wall of the right side of the box body, and the driving end of the second motor is fixedly connected with a rotating shaft. According to the seed sowing device, the first batcher and the second batcher work cooperatively and are matched with the limiting ring, the rotating shaft and other components, accurate quantitative control and ordered conveying of seeds are achieved, it is guaranteed that the number of the seeds sown every time is accurate, and the quality of sowing operation is guaranteed; the first batcher or the second batcher can be flexibly switched and used, meanwhile, the limiting ring effectively restrains the seed falling path, and reliable guarantee is provided for quantitative seed metering operation.

Description

Technical Field

[0001] This utility model relates to the field of quantitative seeding technology, and in particular to a quantitative seed metering device for a tractor-driven seeder. Background Technology

[0002] In the long process of transforming from traditional agriculture to modern agriculture, sowing, as a key starting point in agricultural production, has become increasingly important. In the past, when manual sowing was the main method, it was difficult to ensure that seeds were evenly and accurately distributed in the field, often resulting in uneven seed density. This not only affected the subsequent growth of crops but could also lead to inconsistent yields.

[0003] The quantitative seed metering device for tractor seeders currently has some significant technical problems that cause considerable inconvenience to agricultural sowing operations. For example, the inflexible switching of the seed metering device is a major problem. Its internal structure design lacks convenience, and when it is necessary to change the sowing mode according to different crop seeds or sowing requirements, it often involves complex and cumbersome operations. The adjustment mechanism is also not user-friendly, making it difficult for farmers to easily and quickly complete the switching, which greatly reduces the efficiency of operation. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quantitative seed metering device for tractor seeders. This device solves the technical problems of inaccurate seed metering, inflexible seed metering switching, easy seed clumping affecting seed metering, and uneven and unsmooth seed entry into the seed metering device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A quantitative seed metering device for a tractor-driven seeder includes a housing. A feed hopper is fixedly connected to the top of the housing. A limiting ring is fixedly connected to the inner wall of the housing. A second metering device is provided on the inner wall of the limiting ring. A first metering device is provided at the right end of the second metering device. A second motor is installed on the right outer wall of the housing. A rotating shaft is fixedly connected to the drive end of the second motor. Sliding grooves are provided on both the front and rear sides of the outer wall of the rotating shaft. A slider is slidably connected to the inner wall of the sliding groove. A rotating ring is fixedly connected to the left end of the rotating shaft. A discharge port is fixedly connected to the bottom end of the housing.

[0007] Furthermore, the outer wall of the slider is fixedly connected to the inner wall of the second metering device, and the outer wall of the rotating ring is rotatably connected to the left inner wall of the housing.

[0008] Furthermore, a mounting block is fixedly connected to the outer wall of the rotating ring, and a plug rod is slidably connected to the inner wall of the mounting block, with a spring provided on the inner wall of the plug rod.

[0009] Furthermore, the top end of the spring is connected to the inner wall of the mounting block, and the bottom end of the spring is connected to the outer wall of the insertion rod.

[0010] Furthermore, a sliding rod is fixedly connected to the outer right side of the second metering device. The outer wall of the sliding rod is slidably connected to the inner wall of the rotating ring. A through hole is opened at the top of the sliding rod corresponding to the top of the insertion rod. The size of the through hole is adapted to the insertion rod.

[0011] Furthermore, a sowing shovel is slidably connected to the front outer wall of the box, and a soil scraper is slidably connected to the rear outer wall of the box. Both the sowing shovel and the soil scraper are threadedly connected to the inner walls with bolts.

[0012] Furthermore, the inner wall of the feed hopper is provided with a filter screen, the top of the feed hopper is fixedly connected to a connecting frame, the top of the connecting frame is equipped with a motor, the drive end of the motor is fixedly connected to a rotating shaft, and multiple stirring plates are fixedly connected to the left and right sides of the outer wall of the rotating shaft.

[0013] Furthermore, casters are fixedly connected to both the left and right sides of the bottom of the box.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the first and second quantitative devices work together, along with components such as the limiting ring and rotating shaft, to achieve precise quantitative control and orderly delivery of seeds, ensuring the accuracy of the number of seeds sown each time and guaranteeing the quality of the sowing operation. Through adjustable structures such as the insertion rod and sliding rod, the first or second quantitative device can be flexibly switched. At the same time, the limiting ring effectively constrains the seed falling path, providing a reliable guarantee for quantitative seeding operation.

[0016] 2. In this utility model, the seeds are effectively filtered and dispersed by the synergistic action of the filter screen and the stirring plate, preventing the seeds from sticking together or clumping into the metering device. This ensures that the metering device can carry out precise seeding operations based on well-dispersed seeds. By properly processing the seeds in the feed hopper, the uniformity and smoothness of the seeds entering the metering device are improved, which helps to carry out the entire sowing work efficiently. Attached Figure Description

[0017] Figure 1 This is a perspective view of a quantitative seed metering device for a tractor-driven seeder proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the sowing shovel of a quantitative seed metering device for a tractor-driven seeder proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting ring of a quantitative seed metering device for a tractor-driven seeder proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the insertion rod of a quantitative seed metering device for a tractor-driven seeder proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the mixing plate of a quantitative seed metering device for a tractor-driven seeder proposed in this utility model.

[0022] Legend:

[0023] 1. Box body; 2. Feed hopper; 3. Restriction ring; 4. Motor II; 5. Rotating shaft; 6. First metering device; 7. Second metering device; 8. Sliding block; 9. Rotating ring; 10. Sliding rod; 11. Discharge port; 12. Caster wheel; 13. Mounting block; 14. Insert rod; 15. Spring; 16. Connecting frame; 17. Motor I; 18. Rotating shaft; 19. Mixing plate; 20. Filter screen; 21. Soil spreading shovel; 22. Bolt; 23. Soil scraper. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a quantitative seed metering device for a tractor seeder, comprising a housing 1, a feed hopper 2 fixedly connected to the top of the housing 1, a limiting ring 3 fixedly connected to the inner wall of the housing 1, a second metering device 7 disposed on the inner wall of the limiting ring 3, a first metering device 6 disposed at the right end of the second metering device 7, a second motor 4 mounted on the right outer wall of the housing 1, a rotating shaft 5 fixedly connected to the drive end of the second motor 4, sliding grooves on both the front and rear sides of the outer wall of the rotating shaft 5, a slider 8 slidably connected to the inner wall of the sliding groove, a rotating ring 9 fixedly connected to the left end of the rotating shaft 5, and a discharge port 11 fixedly connected to the bottom end of the housing 1. The outer wall is fixedly connected to the inner wall of the second metering device 7. The outer wall of the rotating ring 9 is rotatably connected to the left inner wall of the housing 1. The outer wall of the rotating ring 9 is fixedly connected to the mounting block 13. The inner wall of the mounting block 13 is slidably connected to the insertion rod 14. The inner wall of the insertion rod 14 is provided with a spring 15. The top end of the spring 15 is connected to the inner wall of the mounting block 13, and the bottom end of the spring 15 is connected to the outer wall of the insertion rod 14. The right outer wall of the second metering device 7 is fixedly connected to the sliding rod 10. The outer wall of the sliding rod 10 is slidably connected to the inner wall of the rotating ring 9. The top end of the sliding rod 10 is provided with a through hole corresponding to the top end of the insertion rod 14. The size of the through hole is adapted to the insertion rod 14.

[0026] A sowing shovel 21 is slidably connected to the front outer wall of the box body 1, and a soil scraper 23 is slidably connected to the rear outer wall of the box body 1. Bolts 22 are threadedly connected to the inner walls of both the sowing shovel 21 and the soil scraper 23. Universal wheels 12 are fixedly connected to the left and right sides of the bottom of the box body 1.

[0027] Specifically, the housing 1, as the main structure of the entire seed metering device, serves to house and support other components. A feed hopper 2 is fixedly connected to its top, receiving seeds to be sown. The seeds enter the housing 1 through the feed hopper 2, initiating the subsequent quantitative seed metering process. A limiting ring 3 is fixedly connected to the inner wall of the housing 1. The limiting ring 3 primarily positions and restricts the movement range of the second metering device 7 inside, ensuring that the second metering device 7 can operate stably within a specific space. Furthermore, the inner wall of the limiting ring 3 cooperates with the second metering device 7 to collaboratively participate in the quantitative control process of seed metering. A second motor 4 is installed on the right outer wall of the housing 1. The second motor 4 serves as a power source, with a rotating shaft 5 fixedly connected to its drive end. When the second motor 4 operates, it drives the rotating shaft 5 to rotate. This provides power for the operation of subsequent related components, enabling the quantitative discharge of seeds. The bottom of the box 1 is fixedly connected to the discharge port 11. After quantitative control, the seeds are finally discharged from the box 1 through the discharge port 11 and enter the corresponding conveying channel of the seeder, and then fall into the field to complete the sowing. The second metering device 7 is located on the inner wall of the limiting ring 3, and the first metering device 6 is set on its right side. The two work together to achieve precise and quantitative control of the seeds. The first metering device 6 and the second metering device 7 are fixedly connected, and the interval between the first metering devices 6 is smaller than the interval between the second metering devices 7, so as to accurately control the number of seeds discharged each time.

[0028] The inner wall of the second metering device 7 is slidably connected to the sliding grooves on the front and rear sides of the outer wall of the rotating shaft 5 via the slider 8. This connection method allows the rotating shaft 5 to drive the second metering device 7 to move accordingly via the slider 8 when it rotates, realizing the orderly delivery and quantitative operation of seeds in the metering device. A sliding rod 10 is fixedly connected to the outer wall of the right side of the second metering device 7. The outer wall of the sliding rod 10 is slidably connected to the inner wall of the rotating ring 9. This connection establishes a relative motion relationship between the second metering device 7 and the rotating ring 9. When the rotating ring 9 rotates or has other movements, the sliding rod 10 can slide along the inner wall of the rotating ring 9, ensuring the stability and continuity of the movement of the second metering device 7 during operation.

[0029] When the first metering device 6 needs to be activated for seed dispensing, the operator first pulls the insert rod 14 out of the through hole of the sliding rod 10 to release the locking state of the sliding rod 10. Then, the operator pulls the sliding rod 10. Since the sliding rod 10 is fixedly connected to the second metering device 7, and the second metering device 7 is slidably connected to the groove on the outer wall of the rotating shaft 5 through the slider 8, the second metering device 7 will slide along the outer wall of the rotating shaft 5 during the pulling of the sliding rod 10. When the operator observes that the first metering device 6 has moved to a position that matches the limiting ring 3, the operator stops pulling the sliding rod 10 and lowers the insert rod 14. Under the elastic force of the spring 15, the insert rod 14 will insert into the through hole at the top of the sliding rod 10, thereby fixing the sliding rod 10 and the connected second metering device 7 in the current position. During the entire seed dispensing process, the seeds enter the box 1 through the feed hopper 2 and fall into the first metering device 6 and the second metering device 7 through the limiting ring 3. The constraint ring 3 constrains the seed's falling path, effectively preventing seeds from scattering during their descent and ensuring that seeds enter the metering device accurately and orderly, thus guaranteeing the subsequent quantitative seeding operation.

[0030] A rotating ring 9 is fixedly connected to the left end of the rotating shaft 5. When the rotating shaft 5 rotates under the drive of the motor 4, it will drive the rotating ring 9 to rotate synchronously. The outer wall of the rotating ring 9 is rotatably connected to the inner wall of the left side of the housing 1. This rotatable connection ensures that the rotating ring 9 can rotate smoothly around its connection point with the housing 1, providing stable rotational support for the operation of the entire device. A mounting block 13 is fixedly connected to the outer wall of the rotating ring 9. The mounting block 13 is used to install the insertion rod 14. A spring 15 is provided on the inner wall of the insertion rod 14. The top end of the spring 15 is connected to the inner wall of the mounting block 13, and the bottom end of the spring 15 is connected to the outer wall of the insertion rod 14. Under the action of the spring 15, the insertion rod 14 can slide up and down on the inner wall of the mounting block 13. The top end of the insertion rod 14 is adapted to the through hole corresponding to the top end of the sliding rod 10. When the insertion rod 14 is inserted into the through hole under the elastic force of the spring 15, it can play a role in positioning and fixing the sliding rod 10, thereby affecting the working state of the second metering device 7 and realizing a specific quantitative control function.

[0031] The sowing shovel 21 is connected to the front outer wall of the box 1 by a sliding connection. This sliding connection allows the sowing shovel 21 to slide up and down relative to the front outer wall of the box 1, so that the height position of the sowing shovel 21 can be flexibly adjusted according to actual operation needs to adapt to different soil conditions and sowing requirements. Meanwhile, the inner wall of the sowing shovel 21 is threaded with bolts 22. After passing through the sowing shovel 21, the bolts 22 contact the housing 1. By tightening or loosening the bolts 22, the sowing shovel 21 can be fixed in the adjusted position to ensure that it will not slide at will during operation and to ensure the stability of its working state. The shovel 23 is also slidably connected to the rear outer wall of the housing 1. This allows the shovel 23 to slide up and down on the rear outer wall of the housing 1, which makes it convenient for the operator to adjust the height of the shovel 23 according to the specific working environment, such as the looseness of the soil and the terrain. In addition, the inner wall of the shovel 23 is also threaded with bolts 22. After tightening, the shovel 23 can be firmly fixed to the housing 1, which can be used to cover the seeds after sowing.

[0032] Reference Figure 1 , Figure 2 and Figure 5 The inner wall of the feed hopper 2 is provided with a filter screen 20. The top of the feed hopper 2 is fixedly connected to a connecting frame 16. The top of the connecting frame 16 is equipped with a motor 17. The drive end of the motor 17 is fixedly connected to a rotating shaft 18. Multiple stirring plates 19 are fixedly connected to the left and right sides of the outer wall of the rotating shaft 18.

[0033] Specifically, the feed hopper 2 serves as the inlet for seeds to enter the quantitative seed metering unit 1, and its inner wall is equipped with a filter screen 20. This filter screen 20 has a filtering function, designed to effectively intercept seeds that are stuck together during the seed entry process, preventing such seeds from falling into the metering unit. This ensures that the subsequent quantitative seed metering unit can perform precise and orderly seeding operations based on single, dispersed seeds, maintaining the accuracy and stability of the entire seeding process. A connecting frame 16 is fixedly connected to the top of the feed hopper 2. The connecting frame 16 mainly serves to support and install other components. Its fixed connection with the feed hopper 2 ensures structural stability and provides a foundation for the installation of subsequent components such as the motor 17. The motor 17 is installed at the top of the connecting frame 16. The motor 17 is the power source, providing power for the subsequent stirring action. A rotating shaft 18 is fixedly connected to the drive end of the motor 17. When the motor 17 starts, its drive end drives the rotating shaft 18 to rotate synchronously. This fixed connection method ensures effective power transmission, allowing the rotating shaft 18 to rotate according to the speed and direction of the motor 17. Multiple stirring plates 19 are fixedly connected to the left and right sides of the outer wall of the rotating shaft 18. As the rotating shaft 18 rotates, the stirring plates 19 rotate along with it within the feed hopper 2. The function of the stirring plates 19 is to stir the seeds within the feed hopper 2, preventing seed accumulation and clumping, allowing the seeds to pass evenly and smoothly through the filter screen 20 into the housing 1. This improves the uniformity and stability of seed dispensing, preventing seed clumping due to prolonged storage, and ensuring that seeds enter the quantitative seed metering device evenly and smoothly, facilitating subsequent stable and accurate seed dispensing operations.

[0034] Working principle: Seeds first enter the feed hopper 2. The filter screen 20 on the inner wall of the feed hopper 2 will intercept seeds that are stuck together, allowing only single, dispersed seeds to pass through. At the same time, the motor 17 installed on the connecting frame 16 at the top of the feed hopper 2 drives the rotating shaft 18 to rotate, which drives the stirring plate 19 to stir the seeds, preventing seeds from piling up and clumping, so that the seeds enter the box 1 evenly and smoothly. The seeds entering the box 1 will fall into the limiting ring 3. The limiting ring 3 positions the second metering device 7 and restricts its range of motion, and works with the second metering device 7 to participate in the seed metering control. The second metering device 7 and the first metering device 6 on the right side work together to control the number of seeds discharged. The interval between the first metering devices 6 is smaller than the interval between the second metering devices 7, so as to accurately control the amount of seeds discharged each time.

[0035] Motor 4 serves as the power source, driving the rotating shaft 5 to rotate. The rotating shaft 5 is connected to the second metering device 7 via the slider 8, which in turn drives the second metering device 7 to move, thus realizing the orderly delivery and quantitative operation of seeds in the metering device. The rotating ring 9 at the left end of the rotating shaft 5 rotates synchronously. The rotating ring 9 and the second metering device 7 establish a relative motion relationship through the sliding rod 10, ensuring the working stability and motion continuity of the second metering device 7.

[0036] When the first metering device 6 needs to be activated for seed dispensing, the operator pulls out the insertion rod 14 and pulls the sliding rod 10 to drive the second metering device 7 to slide. After the first metering device 6 moves to the position that matches the limiting ring 3, the insertion rod 14 is lowered and inserted into the through hole of the sliding rod 10 for fixation, thereby affecting the working state of the second metering device 7 and realizing a specific quantitative control function. The quantitatively controlled seeds are discharged from the discharge port 11 at the bottom of the box 1, enter the corresponding conveying channel of the seeder, and fall into the field. The sowing shovel 21 is connected to the front outer wall of the box 1 by a sliding connection, and its height can be adjusted up and down to adapt to different soil conditions and sowing requirements. Tightening or loosening the bolt 22 connected to its inner wall thread can fix the position of the sowing shovel 21. The shovel 23 is connected to the rear outer wall of the box 1 by the same sliding connection, and its height can be adjusted as needed. Tightening the bolt 22 can fix it firmly and is used to bury the seeds after sowing.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A quantitative seed metering device for a tractor-driven seeder, characterized in that, The box includes a housing (1), a feeding hopper (2) is fixedly connected to the top of the housing (1), a limiting ring (3) is fixedly connected to the inner wall of the housing (1), a second metering device (7) is provided on the inner wall of the limiting ring (3), a first metering device (6) is provided on the right end of the second metering device (7), a second motor (4) is installed on the right outer wall of the housing (1), a rotating shaft (5) is fixedly connected to the drive end of the second motor (4), a sliding groove is provided on both the front and rear sides of the outer wall of the rotating shaft (5), a slider (8) is slidably connected to the inner wall of the sliding groove, a rotating ring (9) is fixedly connected to the left end of the rotating shaft (5), and a discharge port (11) is fixedly connected to the bottom end of the housing (1).

2. The quantitative seed metering device for a tractor-driven seeder according to claim 1, characterized in that: The outer wall of the slider (8) is fixedly connected to the inner wall of the second metering device (7), and the outer wall of the rotating ring (9) is rotatably connected to the left inner wall of the box (1).

3. The quantitative seed metering device for a tractor-driven seeder according to claim 1, characterized in that: The outer wall of the rotating ring (9) is fixedly connected to the mounting block (13), and the inner wall of the mounting block (13) is slidably connected to the insertion rod (14), and the inner wall of the insertion rod (14) is provided with a spring (15).

4. A quantitative seed metering device for a tractor-driven seeder according to claim 3, characterized in that: The top end of the spring (15) is connected to the inner wall of the mounting block (13), and the bottom end of the spring (15) is connected to the outer wall of the insert rod (14).

5. A quantitative seed metering device for a tractor-driven seeder according to claim 1, characterized in that: A sliding rod (10) is fixedly connected to the outer right side of the second metering device (7). The outer wall of the sliding rod (10) is slidably connected to the inner wall of the rotating ring (9). A through hole is opened at the top of the sliding rod (10) corresponding to the top of the insertion rod (14). The size of the through hole is adapted to the insertion rod (14).

6. A quantitative seed metering device for a tractor-driven seeder according to claim 1, characterized in that: A sowing shovel (21) is slidably connected to the front outer wall of the box (1), and a soil scraper (23) is slidably connected to the rear outer wall of the box (1). Bolts (22) are threadedly connected to the inner walls of both the sowing shovel (21) and the soil scraper (23).

7. A quantitative seed metering device for a tractor-driven seeder according to claim 1, characterized in that: The inner wall of the feed hopper (2) is provided with a filter screen (20), and the top of the feed hopper (2) is fixedly connected with a connecting frame (16). The top of the connecting frame (16) is equipped with a motor (17), and the drive end of the motor (17) is fixedly connected with a rotating shaft (18). Multiple stirring plates (19) are fixedly connected to the left and right sides of the outer wall of the rotating shaft (18).

8. A quantitative seed metering device for a tractor-driven seeder according to claim 1, characterized in that: The bottom left and right sides of the box (1) are fixedly connected with casters (12).

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