Forage no-tillage hole sowing roller
By designing a forage no-till seed sowing drum, the cooperation of reset springs and limit blocks is used to solve the problem of unsmooth breaking soil on the grassland, achieving efficient and accurate seed sowing effects and protecting the grassland ecology.
Patent Information
- Application Number
- CN202422143426.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The duckbill used in hole sowing cannot break the soil smoothly on the grassland, resulting in uneven sowing and inefficient efficiency.
A forage no-till seed sowing drum is designed, including the drum body, duckbill base plate, fixed duckbill plate and moving duckbill plate. Through the cooperation of the reset spring and the limit block, the opening and closing action of the duckbill plate is realized to ensure that the seeds break through the soil smoothly on the grassland and sow accurately.
Efficient and precise sowing on the grassland is achieved, the original turf is protected, soil moisture loss and desertification are reduced, and germination rate and sowing efficiency are improved.
Smart Images
Figure CN223125308U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seeding drums, and more specifically, to a no-till hole seeding drum for forage grass. Background Art
[0002] The existing forage grass seeding is roughly divided into three types. The first is strip seeding, which uses a seeding machine or a manual harrow for seeding, and sometimes manual furrowing for seeding; the second is broadcast seeding, which uses a broadcast seeder or manual labor to scatter the seeds on the ground surface and then cover them with soil. This method will cause inconsistent emergence, but is suitable for large-scale forage grass seeding; the third is dibbling, also known as hole seeding, which is to open holes at a certain interval for seeding. This method is generally used for seeding forage grass with large seeds and lush growth. It can not only save seeds but also facilitate emergence. However, the disadvantage of hole seeding is that it has strict requirements for the seeding drum, and the duckbills used for hole seeding cannot break the soil smoothly on the grassland. Content of the Utility Model
[0003] The utility model provides a no-till hole seeding drum for forage grass, which solves the problem that the duckbills used for hole seeding in the related technology cannot break the soil smoothly on the grassland.
[0004] The technical solution of the utility model is as follows: A no-till hole seeding drum for forage grass, which is characterized by including:
[0005] A frame,
[0006] A drum body, the drum body is rotatably arranged on the frame, and a seed discharging port is provided on the outer circumferential surface of the drum body;
[0007] A duckbill bottom plate, the duckbill bottom plate is arranged on the outer circumferential surface of the drum body, and a through hole is opened at a position corresponding to the seed discharging port on the duckbill bottom plate;
[0008] A fixed duckbill plate, the fixed duckbill plate is arranged on the duckbill bottom plate and covers the periphery of the through hole. The fixed duckbill plate has an opening;
[0009] A movable duckbill plate, the middle of the movable duckbill plate is hinged to the fixed duckbill plate. The movable duckbill plate has a seed discharging end and a driving end. Both the seed discharging end and the driving end of the movable duckbill plate are bent away from the drum body, and the seed discharging end of the movable duckbill plate contacts and seals or separates from the opening of the fixed duckbill plate after rotation;
[0010] A return spring, one end of the return spring is connected to the driving end of the movable duckbill plate, and the other end of the return spring is connected to the duckbill bottom plate;
[0011] A limiting block, the limiting block is arranged on the outer circumferential surface of the drum body and is located inside the driving end of the movable duckbill plate. After the movable duckbill plate rotates, it contacts or separates from the limiting block.
[0012] The inner end face of the limiting block has a weight-reducing groove.
[0013] The interior of the roller body has a seeding cavity, and further includes,
[0014] A seeding box, which is arranged on the roller body and located in the seeding cavity. One end of the seeding box has a seeding inlet, the seeding inlet is communicated with the seeding cavity, an outlet for discharging seeds is provided on the outer side plate of the seeding box, and the outlet for discharging seeds is communicated with the seed discharging port on the roller body;
[0015] A first partition plate, which is arranged inside the seeding box. The number of the first partition plates is two, and the two first partition plates are arranged along the axial direction of the roller body. The cavity between the two first partition plates is a seed discharging channel;
[0016] A second partition plate, which is arranged between the two first partition plates and is located at one end close to the seeding inlet. There are seed passing channels left between the other ends of the two first partition plates and the seeding box. The seeding inlet, the seed passing channels, the seed discharging channel, and the outlet for discharging seeds are communicated in sequence.
[0017] It further includes a seed amount adjusting rod, which is arranged on the inner side plate of the seeding box, and the outer end of the seed amount adjusting rod extends into the seed discharging channel.
[0018] The seed amount adjusting rod is threadedly connected to the inner side plate of the seeding box.
[0019] It further includes a reinforcing nut, which is arranged on the inner side plate of the seeding box and is located inside the seeding box. The seed amount adjusting rod is threadedly connected to the reinforcing nut.
[0020] The side plate at one end of the seeding box away from the seeding inlet is an arc-shaped structure that bends away from the second partition plate in the middle.
[0021] The roller body includes,
[0022] A middle cylinder body, on which the seed discharging port, the duckbill bottom plate and the limiting block are all arranged;
[0023] Sealing rings, which are arranged at both ends of the middle cylinder body;
[0024] Side cylinder bodies, which are arranged on the sealing rings. The side cylinder bodies are rotationally connected to the frame. The inner sides of the side cylinder bodies are communicated with the middle cylinder body by means of the sealing rings. The outer sides of the side cylinder bodies are closed ends. The outer diameter of the side cylinder bodies is smaller than the inner diameter of the middle cylinder body. There is a seed adding port on the circumferential surface of the side cylinder bodies;
[0025] A sealing cover is provided on the side barrel body and is located at the seed addition port. The sealing cover is detachably connected to the side barrel body.
[0026] The outer wall of the sealing cover is located inside the outer wall of the middle barrel body.
[0027] The middle barrel body, the sealing ring and the side barrel body are of an integrally formed structure.
[0028] The working principle and beneficial effects of the present utility model are as follows: The drum body is rotatably arranged on the frame. The outer circumferential surface of the drum body has a seed discharging port. The duckbill bottom plate is arranged on the outer circumferential surface of the drum body. A through hole is provided at a position on the duckbill bottom plate corresponding to the seed discharging port. The fixed duckbill plate is arranged on the duckbill bottom plate and covers the periphery of the through hole. The fixed duckbill plate has an opening. The middle part of the movable duckbill plate is hinged to the fixed duckbill plate. The movable duckbill plate has a seed discharging end and a driving end. Both the seed discharging end and the driving end of the movable duckbill plate are bent away from the drum body. The seed discharging end of the movable duckbill plate rotates to contact and seal or separate from the opening of the fixed duckbill plate. One end of the return spring is connected to the driving end of the movable duckbill plate, and the other end of the return spring is connected to the duckbill bottom plate. The limiting block is arranged on the outer circumferential surface of the drum body and is located inside the driving end of the movable duckbill plate. After the movable duckbill plate rotates, it contacts or separates from the limiting block. When the drum body rotates, the movable duckbill plate cooperates with the fixed duckbill plate under the action of the rotational force of the drum body and the return spring to realize the opening and closing actions. The seeds are guided by the seed discharging port of the drum body, pass through the through hole on the duckbill bottom plate, and are finally discharged into the field through the channel formed by the opening of the fixed duckbill plate and the movable duckbill plate, which can ensure the accuracy and reliability of the seed discharge. The limiting block can play a role in supporting the movable duckbill plate and has strong hole-opening ability, enabling the movable duckbill plate to cooperate with the fixed duckbill plate to break the soil smoothly on the grassland and then sow the seeds into the sowing holes. At the same time, the limiting block can limit the movement range of the movable duckbill plate to avoid the return spring being damaged due to excessive pressure, and can extend the service life of the return spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in combination with the drawings in the preferred embodiments.
[0030] Figure 1 It is a schematic diagram of the external structure of the present utility model.
[0031] Figure 2 It is a schematic diagram of the internal structure of the present utility model.
[0032] Figure 3 It is a schematic diagram of the connection structure of the inoculation box, the drum body and the duckbill bottom plate in the present utility model.
[0033] Figure 4 This is a schematic structural view in one direction of the present utility model.
[0034] Figure 5 This is a schematic structural view in another direction of the present utility model.
[0035] Figure 6 This is a schematic structural view in the first direction of the inoculation box of the present utility model.
[0036] Figure 7 This is a schematic structural view in the second direction of the inoculation box of the present utility model.
[0037] Figure 8 This is a schematic structural view in the third direction of the inoculation box of the present utility model.
[0038] Figure 9 This is a schematic internal structural view of the inoculation box of the present utility model.
[0039] In the figure: 1. Frame, 2. Roller body, 2-1. Intermediate cylinder, 2-2. Sealing ring, 2-3. Side barrel, 2-4. Sealing cover, 3. Duckbill bottom plate, 4. Fixed duckbill plate, 5. Movable duckbill plate, 6. Return spring, 7. Limit block, 8. Seed discharging port, 9. Through hole, 10. Weight reduction groove, 11. Seed cavity, 12. Inoculation box, 13. First partition board, 14. Second partition board, 15. Seed inlet, 16. Seed outlet, 17. Seed discharging channel, 18. Seed passing channel, 19. Seed quantity adjusting rod, 20. Reinforcing nut. Specific embodiments
[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other embodiments can be obtained.
[0041] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".
[0042] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0043] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.
[0044] Example, referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , an embodiment of the present utility model provides a no-tillage hill-drop seeding drum for forage grass, which includes a frame 1, a drum body 2, a duckbill bottom plate 3, a fixed duckbill plate 4, a movable duckbill plate 5, a return spring 6, a limit block 7. The drum body 2 is rotatably arranged on the frame 1, and a seed discharging port 8 is provided on the outer circumferential surface of the drum body 2; the duckbill bottom plate 3 is arranged on the outer circumferential surface of the drum body 2, and a through hole 9 is opened at a position corresponding to the seed discharging port 8 on the duckbill bottom plate 3; the fixed duckbill plate 4 is arranged on the duckbill bottom plate 3 and covers the periphery of the through hole 9, and the fixed duckbill plate 4 has an opening; the middle part of the movable duckbill plate 5 is hinged to the fixed duckbill plate 4, the movable duckbill plate 5 has a seed discharging end and a driving end, both the seed discharging end and the driving end of the movable duckbill plate 5 are bent away from the drum body 2, and the seed discharging end of the movable duckbill plate 5 contacts and seals or separates from the opening of the fixed duckbill plate 4 after rotation; one end of the return spring 6 is connected to the driving end of the movable duckbill plate 5, and the other end of the return spring 6 is connected to the duckbill bottom plate 3; the limit block 7 is arranged on the outer circumferential surface of the drum body 2 and is located inside the driving end of the movable duckbill plate 5. After the movable duckbill plate 5 rotates, it contacts or separates from the limit block 7.
[0045] In this embodiment, the fixed nozzle pressing plate 4 and the moving duckbill plate 5 are both located outside the duckbill bottom plate 3, and are semi-enclosed structures surrounded by two left and right side plates and an end plate, with the opening facing the seeding end of the moving duckbill plate 5. When the roller body 2 rotates, the moving duckbill plate 5 cooperates with the fixed duckbill plate 4 under the action of the rotational force of the roller body 2 and the return spring 6 to achieve the opening and closing action. Under the guidance of the seed discharging port 8 of the roller body 2, the seeds pass through the through holes 9 on the duckbill bottom plate 3 and are finally discharged into the field through the channel formed by the opening of the fixed duckbill plate 4 and the moving duckbill plate 5, which can ensure the accuracy and reliability of seed discharging. The limit block 7 can support the moving duckbill plate 5, enabling the moving duckbill plate 5 to cooperate with the fixed duckbill plate 4 to break the ground smoothly on the grassland and then sow the seeds into the sowing holes. At the same time, the limit block 7 can limit the movement range of the moving duckbill plate 5 to prevent the return spring 6 from being damaged due to excessive pressure, and can extend the service life of the return spring 6. The overall structure is simple, with low failure rate and high seeding efficiency. The seeding roller can follow the undulation of the grassland terrain, and the seeding depth is consistent, which can effectively improve the germination rate. No-till hole seeding does not damage the original turf vegetation, can protect the grassland ecology to the greatest extent, reduce soil moisture loss, and effectively prevent the desertification of grassland soil.
[0046] Further, as Figure 4 and Figure 5 shown, the inner end face of the limit block 7 has a weight-reducing groove 10. On the premise of ensuring that the limit block 7 can support the moving duckbill plate 5, the weight-reducing groove 10 can reduce the weight of the limit block 7, reduce the material consumption of the limit block 7, and save costs.
[0047] Further, as Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, the inside of the roller body 2 has a seed cavity 11, and further includes a seed inoculation box 12, a first partition 13, and a second partition 14. The seed inoculation box 12 is arranged on the roller body 2 and is located inside the seed cavity 11. One end of the seed inoculation box 12 has a seed inlet 15, and the seed inlet 15 is communicated with the seed cavity 11. The outer side plate of the seed inoculation box 12 has a seed outlet 16, and the seed outlet 16 is communicated with the seed discharging port 8 on the roller body 2; the first partition 13 is arranged inside the seed inoculation box 12, and the number of the first partitions 13 is two. The two first partitions 13 are arranged along the axial direction of the roller body 2, and the cavity between the two first partitions 13 is a seed discharging channel 17; the second partition 14 is arranged between the two first partitions 13 and is located at one end close to the seed inlet 15. There are seed passing channels 18 left between the other ends of the two first partitions 13 and the seed inoculation box 12. The seed inlet 15, the seed passing channels 18, the seed discharging channel 17, and the seed outlet 16 are communicated in sequence.
[0048] The seed passing channel 18 and the seed metering channel 17 form a labyrinthine channel, which can ensure the smooth flow of seeds, avoid blockage, and improve the seeding efficiency. By adjusting the positions of the first partition plate 13 and the second partition plate 14, seeds of different sizes and shapes can be accommodated, enhancing the versatility of the seeding drum. When the drum body 2 rotates, the seeds in the seed cavity 11 enter the inside of the seed metering box 12 through the seed inlet 15. The seeds pass through the seed passing channel 18 inside the seed metering box 12 and are guided to the seed metering channel 17. As the drum body 2 rotates, the seeds move along the seed metering channel 17 and finally are discharged from the seed outlet 16 of the seed metering box 12, and then enter the channel formed by the opening of the fixed duckbill plate 4 and the moving duckbill plate 5 through the seed outlet 8 of the drum body 2 and the through hole 9 on the duckbill bottom plate 3, and finally are accurately discharged into the field. Through the precise guidance of the seed metering channel 17, it is ensured that each seed can be accurately discharged to the predetermined position, which can improve the seeding accuracy.
[0049] Furthermore, as Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, it further includes a seed amount adjusting rod 19. The seed amount adjusting rod 19 is arranged on the inner side plate of the seed metering box 12, and the outer end of the seed amount adjusting rod 19 extends into the seed metering channel 17. When the drum body 2 rotates, the seeds in the seed cavity 11 enter the inside of the seed metering box 12 through the seed inlet 15. The seeds pass through the seed passing channel 18 inside the seed metering box 12 and are guided into the seed metering channel 17. If the length of the seed amount adjusting rod 19 located in the seed metering channel 17 is shorter, the available space of the seed metering channel 17 is larger, and more seeds can pass through smoothly, thereby increasing the seed discharge amount per unit time; conversely, if the length of the seed amount adjusting rod 19 located in the seed metering channel 17 is longer, the available space of the seed metering channel 17 is smaller, and the seed discharge amount decreases accordingly. By adjusting the position of the seed amount adjusting rod 19, the flow path and space of the seeds in the seed metering channel 17 can be changed, and further, the number of seeds passing through the seed outlet 8 per unit time can be controlled, and the adjustment of the seeding density can be realized.
[0050] Furthermore, the seed amount adjusting rod 19 is threadedly connected to the inner side plate of the seed metering box 12. By rotating the seed amount adjusting rod 19, its position inside the seed metering box 12 can be finely adjusted, and further, the effective space of the seed metering channel 17 can be changed, accurately controlling the seed discharge amount, and meeting the requirements of different crop planting densities. Once the appropriate adjustment position is found, the threaded connection can provide sufficient connection strength to fix the seed amount adjusting rod 19 on the inner side plate of the seed metering box 12, ensuring the stability of the position of the seed amount adjusting rod 19 during the seeding process and avoiding displacement due to vibration or external forces.
[0051] Furthermore, as Figure 2 , Figure 3 ,Figure 7 and Figure 8 As shown in Figure 8 , it further includes a reinforcing nut 20. The reinforcing nut 20 is arranged on the inner side plate of the inoculation box 12 and is located inside the inoculation box 12. The seed amount adjusting rod 19 is threadedly connected to the reinforcing nut 20. Through the threaded connection with the seed amount adjusting rod 19, the reinforcing nut 20 can bear a greater torque, ensuring the stable position of the seed amount adjusting rod 19 during the process of adjusting the seed discharge amount and preventing displacement due to vibration or external forces. During long-term use, the reinforcing nut 20 can reduce the thread wear of the seed amount adjusting rod 19, extend the service life of the connection part between the seed amount adjusting rod 19 and the inoculation box 12, and reduce the maintenance cost.
[0052] Furthermore, as Figure 9 shown in Figure 9 , the side plate at one end of the inoculation box 12 away from the seed inlet 15 is an arc-shaped structure that bends from the middle towards the direction away from the second partition 14. The design of the arc-shaped structure can control the speed and angle of the seeds entering the seed discharge channel 17, guide the seeds to move along a smoother path, reduce the collision and accumulation of seeds inside the inoculation box 12, thereby improving the smoothness and uniformity of seed discharge, ensuring that the seeds can be discharged at the expected rate and direction, and improving the sowing accuracy.
[0053] Furthermore, as Figure 4 and Figure 5 shown in Figure 4 and Figure 5 , the drum body 2 includes an intermediate cylinder 2-1, a sealing ring 2-2, side cylinder bodies 2-3, a sealing cover 2-4. The seed discharge port 8, the duckbill bottom plate 3, and the limit block 7 are all arranged on the intermediate cylinder 2-1; sealing rings 2-2 are arranged at both ends of the intermediate cylinder 2-1; the side cylinder bodies 2-3 are arranged on the sealing rings 2-2. The side cylinder bodies 2-3 are rotatably connected to the frame 1. The inner side of the side cylinder bodies 2-3 communicates with the intermediate cylinder 2-1 through the sealing rings 2-2. The outer side of the side cylinder bodies 2-3 is a closed end. The outer diameter of the side cylinder bodies 2-3 is smaller than the inner diameter of the intermediate cylinder 2-1. There is a seed adding port on the circumferential surface of the side cylinder bodies 2-3; the sealing cover 2-4 is arranged on the side cylinder bodies 2-3 and is located at the seed adding port. The sealing cover 2-4 is detachably connected to the side cylinder bodies 2-3.
[0054] Open the sealing cover 2-4, and the seeds can be added into the side cylinder body 2-3 through the seed adding port, and then the sealing cover 2-4 is tightly sealed with the side cylinder body 2-3. The seeds enter the seed cavity 11 of the intermediate cylinder 2-1 through the sealing ring 2-2. As the drum body 2 rotates, the seeds move in the seed cavity 11, enter the channel formed by the opening of the fixed duckbill plate 4 and the moving duckbill plate 5 through the through holes 9 on the seed discharge port 8 and the duckbill bottom plate 3, and are finally accurately discharged into the field. The sealing ring 2-2 and the sealing cover 2-4 ensure the sealing of the whole process, preventing seed leakage or interference from external impurities. With this design of the drum body 2, through reasonable structural layout and sealing measures, precise control and discharge of seeds can be achieved.
[0055] Furthermore, as Figure 4 and Figure 5 shown, the outer wall of the sealing cover 2-4 is located inside the outer wall of the middle cylinder 2-1. During the sowing process, the sealing cover 2-4 is always located inside the outer wall of the middle cylinder 2-1, which can prevent the sealing cover 2-4 from contacting the soil and ensure the reliable connection between the sealing cover 2-4 and the side barrel 2-3. Moreover, this design helps to reduce the overall size of the drum body 2, making the sowing drum more compact in design, facilitating operation in narrow farmland environments, and at the same time reducing the manufacturing cost and transportation difficulty.
[0056] Furthermore, the middle cylinder 2-1, the sealing ring 2-2 and the side barrel 2-3 are of an integrally formed structure. The integrally formed structure can improve the strength and durability of the overall structure by eliminating the connection points between components. The absence of seams and welds means fewer potential weak points, enabling it to withstand greater mechanical stress and wear, and can extend the service life of the drum body 2. The integrally formed structure eliminates the possible gaps and unevenness at the joints of each component, which can greatly improve the sealing performance of the drum body 2, reduce the risk of seed leakage and entry of external impurities, and ensure the sowing accuracy and efficiency.
[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. No-tillage hole seeding drum for forage grass, characterized in that: including, a frame (1), a roller body (2) rotatably arranged on the frame (1), and a seed discharging port (8) is provided on the outer circumferential surface of the roller body (2); a duckbill bottom plate (3) arranged on the outer circumferential surface of the roller body (2), and a through hole (9) is provided at a position corresponding to the seed discharging port (8) on the duckbill bottom plate (3); a fixed duckbill plate (4) arranged on the duckbill bottom plate (3) and covering the periphery of the through hole (9), and the fixed duckbill plate (4) has an opening; a movable duckbill plate (5) whose middle part is hinged to the fixed duckbill plate (4), the movable duckbill plate (5) has a seed discharging end and a driving end, both the seed discharging end and the driving end of the movable duckbill plate (5) are bent away from the roller body (2), and the seed discharging end of the movable duckbill plate (5) contacts and seals or separates from the opening of the fixed duckbill plate (4) after rotation; a return spring (6) with one end connected to the driving end of the movable duckbill plate (5) and the other end connected to the duckbill bottom plate (3); a limiting block (7) arranged on the outer circumferential surface of the roller body (2) and located inside the driving end of the movable duckbill plate (5), and the movable duckbill plate (5) contacts or separates from the limiting block (7) after rotation.
2. The no-tillage hill-drop seeding drum for forage grass according to claim 1, wherein: A weight-reducing groove (10) is provided on the inner end surface of the limiting block (7).
3. The no-tillage hill-drop seeding drum for forage grass according to claim 1, characterized in that: A seed cavity (11) is provided inside the roller body (2), and further including, a seed inoculation box (12) arranged on the roller body (2) and located inside the seed cavity (11), one end of the seed inoculation box (12) has a seed inlet (15) communicating with the seed cavity (11), and a seed outlet (16) is provided on the outer side plate of the seed inoculation box (12) communicating with the seed discharging port (8) on the roller body (2); a first partition plate (13) arranged inside the seed inoculation box (12), the number of the first partition plates (13) is two, the two first partition plates (13) are arranged along the axial direction of the roller body (2), and the cavity between the two first partition plates (13) is a seed discharging channel (17); a second partition plate (14) arranged between the two first partition plates (13) and located at one end close to the seed inlet (15), and a seed passing channel (18) is left between the other ends of the two first partition plates (13) and the seed inoculation box (12), and the seed inlet (15), the seed passing channel (18), the seed discharging channel (17), and the seed outlet (16) are communicated in sequence.
4. The no-tillage hill-drop seeding drum for forage grass according to claim 3, wherein: A seed amount adjusting rod (19) is further included, the seed amount adjusting rod (19) is arranged on the inner side plate of the seed inoculation box (12), and the outer end of the seed amount adjusting rod (19) extends into the seed discharging channel (17).
5. The no-tillage hill-drop seeding drum for forage grass according to claim 4, characterized in that: The seed amount adjusting rod (19) is threadedly connected to the inner side plate of the inoculation box (12).
6. The no-tillage hill-drop seeding drum for forage grass according to claim 5, wherein: It further includes a reinforcing nut (20). The reinforcing nut (20) is arranged on the inner side plate of the inoculation box (12) and is located inside the inoculation box (12). The seed amount adjusting rod (19) is threadedly connected to the reinforcing nut (20).
7. The no-tillage hill-drop seeding drum for forage grass according to claim 3, wherein: The side plate at one end of the inoculation box (12) away from the seed inlet (15) is an arc-shaped structure that bends away from the second partition plate (14) in the middle.
8. The no-tillage hill-drop seeding drum for forage grass according to claim 1, characterized in that: The drum body (2) includes a middle cylinder body (2-1). The seed discharging port (8), the duckbill bottom plate (3), and the limiting block (7) are all arranged on the middle cylinder body (2-1); sealing rings (2-2). The sealing rings (2-2) are arranged at both ends of the middle cylinder body (2-1); side cylinder bodies (2-3). The side cylinder bodies (2-3) are arranged on the sealing rings (2-2). The side cylinder bodies (2-3) are rotatably connected to the frame (1). The inner sides of the side cylinder bodies (2-3) communicate with the middle cylinder body (2-1) by means of the sealing rings (2-2). The outer sides of the side cylinder bodies (2-3) are closed ends. The outer diameter of the side cylinder bodies (2-3) is smaller than the inner diameter of the middle cylinder body (2-1). A seed adding port is provided on the circumferential surface of the side cylinder bodies (2-3); sealing covers (2-4). The sealing covers (2-4) are arranged on the side cylinder bodies (2-3) and are located at the seed adding ports. The sealing covers (2-4) and the side cylinder bodies (2-3) are detachably connected to each other.
9. The no-tillage hill-drop seeding drum for forage grass according to claim 8, characterized in that: The outer wall of the sealing cover (2-4) is located inside the outer wall of the middle cylinder body (2-1).
10. The no-tillage hill-drop seeding drum for forage grass according to claim 8, wherein: The middle cylinder body (2-1), the sealing rings (2-2), and the side cylinder bodies (2-3) are of an integrally formed structure.