A deep tillage seeding disc based on multi-pore position adjustment

Abstract

This utility model proposes a deep tillage and seeding cutter disc based on multi-hole position adjustment, belonging to the field of agricultural machinery technology. It includes: a single connecting cylindrical tube with a fixing member sleeved on its side; a disc cutter disposed on one side of the fixing member, the disc cutter being rotatably connected to the fixing member; and a depth limiting component disposed on the side of the fixing member away from the disc cutter. A furrowing auxiliary plate is provided between the depth limiting component and the fixing member, and the furrowing auxiliary plate is bolted to the fixing member. Through the above structural design, this utility model achieves a reasonable assembly and connection of the single connecting cylindrical tube, disc cutter, and depth limiting component, allowing the disc cutter to rotate flexibly for cutting operations, and the depth limiting component to precisely control the depth, effectively improving the stability, accuracy, and work efficiency of the overall device during operation.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and more specifically, to a deep tillage and seeding disc based on multi-hole position adjustment. Background Technology

[0002] In agricultural planting, long-term cultivation and the extensive use of chemical fertilizers, herbicides, and pesticides have led to increasingly serious soil compaction. This results in poor soil aeration and permeability, affecting the growth and development of crop roots. To improve soil structure, deep plowing is necessary to turn over the subsoil and mix it with the topsoil, breaking up the plow pan and thickening the topsoil layer, thereby creating favorable soil conditions for crop growth. For example, the rootstock depth of rhizomes in medicinal herbs is mostly between 20cm and 60cm, and some even reach 80cm. When planting these herbs, deep plowing and rotary tillage are required first.

[0003] Agricultural production demands increasingly sophisticated sowing methods, requiring not only precise control of sowing depth but also uniform seed distribution and stratified seed-fertilizer application. For example, precision sowing demands even seed distribution, adequate soil covering, and firm compaction, while also requiring precise adjustments to sowing and fertilization depths based on different crops and soil conditions. Traditional sowing methods struggle to meet these requirements simultaneously, necessitating a flexible and adaptable sowing device that can be integrated with deep tillage.

[0004] Therefore, there is an urgent need for a deep tillage seeding disc based on multi-hole position adjustment to replace the existing seeding technology in order to solve the problem of how to accurately adjust the seeding depth. Utility Model Content

[0005] In view of this, this utility model proposes a deep tillage and seeding disc based on multi-hole position adjustment, aiming to solve the problem of how to accurately adjust the seeding depth.

[0006] This utility model provides a deep tillage seeding disc based on multi-hole position adjustment, installed on a seeding unit, comprising:

[0007] A single connecting round tube is fitted with a fixing component on its side;

[0008] A disc cutter is disposed on one side of the fixing member, and the disc cutter is rotatably connected to the fixing member;

[0009] A depth limiting component is disposed on the side of the fixing member away from the disc cutter. The disc cutter and the depth limiting component are arranged in parallel. A trenching auxiliary piece is disposed between the depth limiting component and the fixing member. The trenching auxiliary piece is bolted to the fixing member.

[0010] Furthermore, the depth limiting component is provided with a single depth limiting plate, which is L-shaped. The L-shaped single depth limiting plate is divided into a long end plate and a short end plate, and a through hole is provided at the bend. A bushing is embedded inside the through hole, and the depth limiting component is rotatably connected to the trenching auxiliary piece through the bushing.

[0011] Furthermore, a depth-limiting baffle is vertically provided on the side of the long end plate away from the groove auxiliary piece. The depth-limiting baffle is welded to the outer edge of the long end plate. A limiting hole is opened on the surface of the short end plate. The limiting hole consists of 5 interconnected adjustable holes.

[0012] Furthermore, the top two sides of the short end plate are provided with rocker plates that are inclined toward the direction of moving away from the groove auxiliary plate, and the position of the rocker plates corresponds to the adjustable hole position of the limiting hole.

[0013] Furthermore, a limiting bolt is provided on the side of the trenching auxiliary plate near the depth limiting component. The limiting bolt is located inside the adjustable hole. A limiting washer is sleeved between the limiting bolt and the short end plate. A return spring is provided between the limiting bolt and the limiting washer.

[0014] Furthermore, the fixing member is provided with a scraper blade, which is connected to the fixing member by a screw, and the screw is used to adjust the gap between the scraper blade and the disc cutter.

[0015] Furthermore, the scraper blade is embedded with a bearing housing, and a bearing is provided on the inner side of the bearing housing. The bearing is sleeved on the outer side of the screw, and the bearing is used to enable the scraper blade to rotate 360°.

[0016] Furthermore, the trenching auxiliary plate has a notch on one side near the short end plate, the notch is located outside the rotation range of the long end plate, and the screw is located inside the notch.

[0017] Furthermore, the end of the single connecting round tube near the fixing member is provided with a seeding pipe opening.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. By setting a depth limiting component, users can precisely adjust the soil penetration depth of the disc cutter according to the sowing requirements of different crops. This design is more adaptable than traditional fixed-depth disc cutters and can significantly improve seed germination rate and crop yield.

[0020] 2. The depth limiting component is set parallel to the disc cutter. During operation, the depth limiting component can effectively prevent the disc cutter from entering the soil excessively, ensuring consistent tillage depth. It is especially suitable for large-scale sowing operations and reduces the cost of manual intervention.

[0021] 3. The unit connecting tube, disc cutter, and depth limiting assembly are organically connected by fasteners to form a compact overall structure. This design reduces the equipment's footprint, facilitates field operation, and is especially suitable for small farmlands or complex terrain. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 A schematic diagram of the structure of the deep tillage and seeding disc provided in this embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the deep tillage and seeding disc in its deepest working state provided in this embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the structure of the deep tillage and seeding disc in its shallowest working state, provided in an embodiment of this utility model.

[0026] In the diagram: 100 - Single connecting round tube; 110 - Fixing component; 200 - Disc cutter; 300 - Trenching auxiliary plate; 400 - Single depth limiting plate; 410 - Long end plate; 411 - Depth limiting baffle; 420 - Short end plate; 421 - Limiting hole; 422 - Rocker; 430 - Bushing; 500 - Limiting bolt; 510 - Return spring; 600 - Scraper; 610 - Screw; 620 - Bearing seat; 700 - Seed metering pipe inlet. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] See Figure 1 As shown, this embodiment provides a deep tillage and seeding disc based on multi-hole position adjustment, including: a single connecting round tube 100, a disc blade 200, and a depth limiting component;

[0032] Specifically, the single connecting round tube 100 has a fastener 110 sleeved on its side;

[0033] The disc cutter 200 is disposed on one side of the fixing member 110, and the cutter disc is rotatably connected to the fixing member 110;

[0034] The depth limiting component is located on the side of the fixing member 110 away from the disc cutter 200. The disc cutter 200 and the depth limiting component are arranged in parallel. A trenching auxiliary piece 300 is provided between the depth limiting component and the fixing member 110. The trenching auxiliary piece 300 is bolted to the fixing member.

[0035] Specifically, the single depth-limiting plate 400 is welded from low-alloy high-strength structural steel, and the disc cutter 200 is made of 30MnB5 high-strength steel plate with a thickness of 3mm and a yield strength ≥800MPa. The trenching auxiliary plate 300 is connected to the cutter head and has a 173° angle to increase strength. When combined with the disc cutter 200 for trenching, it can improve the impact resistance of the cutter head by more than 30%.

[0036] Understandably, by setting the depth limiting component, users can precisely adjust the soil penetration depth of the disc cutter 200 according to the sowing requirements of different crops. This design is more adaptable than traditional fixed-depth cutter discs, significantly improving seed germination rate and crop yield. The depth limiting component is set parallel to the disc cutter 200, effectively preventing excessive soil penetration during operation and ensuring consistent tillage depth. This is particularly suitable for large-scale sowing operations, reducing manual intervention costs. The single connecting tube 100, disc cutter 200, and depth limiting component are organically connected by the fixing component 110, forming a compact overall structure. This design reduces the equipment's footprint, facilitating field operation, and is especially suitable for small farmlands or complex terrain.

[0037] See Figure 2 and Figure 3 As shown, in some embodiments of this application, the depth limiting component is provided with a single depth limiting plate 400, which is L-shaped. The L-shaped single depth limiting plate 400 is divided into a long end plate 410 and a short end plate 420, and a through hole is provided at the bend. A bushing 430 is embedded inside the through hole. The depth limiting component is rotatably connected to the trenching auxiliary piece 300 through the bushing 430.

[0038] Specifically, a depth-limiting baffle 411 is vertically installed on the side of the long end plate 410 away from the groove auxiliary piece 300. The depth-limiting baffle 411 is welded to the outer edge of the long end plate 410. A limiting hole 421 is opened on the surface of the short end plate 420. The limiting hole 421 consists of 5 interconnected adjustable holes.

[0039] Specifically, the top of the short end plate 420 is provided with rocker plates 422 that are inclined toward the direction of the auxiliary piece 300 away from the groove on both sides, and the position of the rocker plates 422 corresponds to the adjustable hole position of the limiting hole 421.

[0040] Understandably, the angle of the single depth limiting plate 400 can be adjusted through the rotational connection between the bushing 430 and the rotating shaft (see...). Figure 2-3 (Angle adjustment range illustration). When the equipment passes through uneven terrain, the depth limiting plate can automatically adjust its posture according to the ground undulations to maintain effective contact with the ground and ensure consistent tillage depth.

[0041] Understandably, the limiting bolt 500 is located inside the limiting hole 421, which consists of five interconnected adjustable holes. This allows for precise adjustment of the position of the depth limiting component according to different operational needs, thereby accurately controlling the soil penetration depth of the disc cutter 200, meeting diverse sowing requirements, and improving sowing quality.

[0042] In some embodiments of this application, a limiting bolt 500 is provided on the side of the trenching auxiliary piece 300 near the depth limiting component. The limiting bolt 500 is located inside the adjustable hole. A limiting washer is sleeved between the limiting bolt 500 and the short end plate 420. A return spring 510 is provided between the limiting bolt 500 and the limiting washer.

[0043] Understandably, when adjusting the sowing depth, the depth limiting plate 400 is lifted by holding the rocker arm 422 and adjusted to one of the positions of the five holes. When the rocker arm 422 is released, the individual depth limiting plate 400 can automatically reset by relying on the action of the return spring 510.

[0044] In some embodiments of this application, the fixing member is provided with a scraper 600, and the scraper 600 is connected to the fixing member by a screw 610. The screw 610 is used to adjust the gap between the scraper 600 and the disc cutter 200.

[0045] Specifically, the scraper blade 600 and the depth limiting component form a collaborative working mechanism. When the depth limiting component automatically adjusts the soil penetration depth of the disc cutter 200 according to the terrain, the scraper blade 600 can simultaneously fine-tune its height via the screw 610, always maintaining optimal contact with the working surface of the disc cutter 200. At the same time, reinforcing ribs are added to the back of the scraper blade 600, forming a triangular stable structure with the fixing component 110. When subjected to soil impact, this structure can evenly distribute stress throughout the connecting components, further improving structural stability and ensuring the reliability of the equipment under high-intensity operation.

[0046] Understandably, the scraper 600 is designed to promptly remove soil adhering to the disc cutter 200 during operation, preventing soil accumulation on it. Soil accumulation not only increases the running resistance of the disc cutter 200, reducing operational efficiency, but can also affect its normal rotation and the accuracy of its penetration depth. The scraper 600 effectively solves these problems, ensuring the disc cutter 200 always maintains a good working condition.

[0047] Understandably, adjusting the gap between the scraper blade 600 and the disc cutter 200 via the screw 610 allows for precise adjustment based on different operating conditions and soil characteristics. Under varying soil textures and moisture levels, a suitable gap ensures that the scraper blade 600 effectively removes soil without excessive friction with the disc cutter 200, preventing damage to the disc cutter 200's surface, extending its service life, and reducing wear on the scraper blade itself, thus lowering equipment maintenance costs.

[0048] In some embodiments of this application, the scraper 600 is embedded with a bearing seat 620, a bearing is provided inside the bearing seat 620, and the bearing is sleeved on the outer side of the screw 610. The bearing is used to enable the scraper 600 to rotate 360°.

[0049] Specifically, the main body of the scraper blade 600 is made of high-strength rubber, which has good wear resistance. The bearing housing 620 embedded in the scraper blade 600 adopts a split structure and is fastened with high-strength bolts, which facilitates quick disassembly and replacement of the bearing. The bearing is a self-lubricating spherical roller bearing with an automatic self-aligning function, which can effectively compensate for eccentricity caused by installation errors of the screw 610 or operational vibrations, ensuring the stability of the scraper blade 600 during rotation. The outer ring of the bearing is interference-fitted with the bearing housing 620, while the inner ring is clearance-fitted with the screw 610, ensuring rotational flexibility while preventing relative sliding wear between the two.

[0050] Understandably, when the disc cutter 200 tilts or changes posture during operation in complex terrain, the bearing allows the scraper blade 600 to rotate freely 360°, maintaining the optimal contact angle with the working surface of the disc cutter 200. This prevents localized wear or scratches on the surface of the scraper blade 600 caused by hard contact. When encountering impacts from large clods of soil or rocks, the scraper blade 600 can promptly dissipate the force through rotation, effectively buffering the impact and reducing damage to the screw 610 and the fixing component 110, significantly improving the impact resistance of the scraper assembly.

[0051] In some embodiments of this application, the trenching auxiliary piece 300 has a notch on the side near the short end plate 420, the notch is located outside the rotation range of the long end plate 410, and the screw 610 is located inside the notch.

[0052] Understandably, the trenching auxiliary plate 300 has a notch on the side near the short end plate 420, and the notch is positioned outside the rotation range of the long end plate 410, providing dedicated installation space for the screw 610. This ensures unimpeded free rotation of the long end plate 410 of the individual depth limiting plate 400, while cleverly accommodating the screw 610 to prevent collisions or interference between the long end plate 410 and the screw 610 during rotation. This allows for a rational distribution of all components of the depth limiting assembly within a limited space, ensuring a compact structure and smooth operation of the entire deep tillage and seeding cutter head.

[0053] In some embodiments of this application, the end of the single connecting round tube 100 near the fixing member 110 is provided with a seeding tube opening 700.

[0054] Understandably, positioning the seed metering tube opening 700 at the end of the single connecting round tube 100 near the fixing member 110 allows the seeds, after being output from the seed metering tube, to reach the working area of ​​the disc cutter 200 via the shortest path. Compared to the traditional, longer seed metering path, this reduces the time loss of seeds during transmission, accelerates the sowing speed, effectively increases the sowing area per unit time, and improves overall operational efficiency.

[0055] It will be understood by those skilled in the art that the above description is merely 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 deep tillage seeding disc based on multi-hole position adjustment, installed on a seeding unit, characterized in that, include: A single connecting round tube is fitted with a fixing component on its side; A disc cutter is disposed on one side of the fixing member, and the disc cutter is rotatably connected to the fixing member; A depth limiting component is disposed on the side of the fixing member away from the disc cutter. The disc cutter and the depth limiting component are arranged in parallel. A trenching auxiliary piece is disposed between the depth limiting component and the fixing member. The trenching auxiliary piece is bolted to the fixing member.

2. The deep tillage and seeding disc according to claim 1, characterized in that, The depth limiting component is provided with a single depth limiting plate, which is L-shaped. The L-shaped single depth limiting plate is divided into a long end plate and a short end plate, and a through hole is opened at the bend. A bushing is embedded in the inner side of the through hole. The depth limiting component is rotatably connected to the trenching auxiliary plate through the bushing.

3. The deep tillage and seeding disc according to claim 2, characterized in that, A depth-limiting baffle is vertically installed on the side of the long end plate away from the groove auxiliary piece. The depth-limiting baffle is welded to the outer edge of the long end plate. A limiting hole is opened on the surface of the short end plate. The limiting hole consists of 5 interconnected adjustable holes.

4. The deep tillage and seeding disc according to claim 3, characterized in that, The top of the short end plate is provided with rocker plates on both sides that are inclined toward the direction of the auxiliary plate away from the groove, and the position of the rocker plates corresponds to the adjustable position of the limiting hole.

5. The deep tillage and seeding disc according to claim 2 or 3, characterized in that, A limiting bolt is provided on the side of the trenching auxiliary plate near the depth limiting component. The limiting bolt is located inside the adjustable hole. A limiting washer is sleeved between the limiting bolt and the short end plate. A return spring is provided between the limiting bolt and the limiting washer.

6. The deep tillage and seeding disc according to claim 1, characterized in that, The fixing component is equipped with a scraper blade, which is connected to the fixing component by a screw. The screw is used to adjust the gap between the scraper blade and the disc cutter.

7. The deep tillage and seeding disc according to claim 6, characterized in that, The scraper blade is embedded with a bearing housing, and a bearing is provided on the inner side of the bearing housing. The bearing is sleeved on the outer side of the screw.

8. The deep tillage and seeding disc according to claim 2 or 6, characterized in that, The trenching auxiliary plate has a notch on the side near the short end plate, the notch is located outside the rotation range of the long end plate, and the screw is located inside the notch.

9. The deep tillage and seeding disc according to claim 1, characterized in that, The end of the single connecting round tube near the fixing component is provided with a seeding pipe opening.

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