Self-adaptive angle adjusting device of seeding machine

By designing an adaptive angle adjustment device on the seeder, utilizing hinged connections and angle adjustment locking mechanisms, combined with elastic elements and electric push rods, the problem of uneven sowing depth in uneven terrain is solved, achieving uniformity and precision in sowing, and improving crop growth quality and efficiency.

CN224205710UActive Publication Date: 2026-05-08SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES
Filing Date
2025-06-10
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing seeders struggle to maintain a constant sowing depth in uneven farmland terrain, resulting in uneven sowing and impacting seed utilization and crop growth consistency.

Method used

An adaptive angle adjustment device for a seeder was designed. It is connected to the seeder mounting base by a hinged mounting frame and is equipped with an angle adjustment locking mechanism and an elastic element. It can adjust the angle of the seeder according to the terrain. Combined with an electric push rod, it can achieve precise angle control and absorb the vibration of terrain undulations.

Benefits of technology

It improves the adaptability and flexibility of the seeder, ensures the uniformity and precision of the sowing depth, reduces seed waste, and improves the uniformity of crop growth and yield.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-adaptive angle adjusting device of a seeding machine, and belongs to the technical field of seeding machines, the self-adaptive angle adjusting device of the seeding machine comprises a walking chassis rack, a mounting rod, a mounting rack and a seeder mounting seat, the mounting rack is hinged with the seeder mounting seat, the seeder mounting seat is fixedly mounted on the mounting rod through a saddle clip and a bolt, and the saddle clip is fixed on the mounting rack. And an angle adjusting and locking mechanism for adjusting the angle of the mounting frame is arranged between the mounting frame and the seeder mounting seat. The seeder has the advantage of being capable of adapting to different terrains and seeding depths.
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Description

Technical Field

[0001] This utility model belongs to the field of seeder technology, and more specifically it relates to an adaptive angle adjustment device for a seeder. Background Technology

[0002] As an indispensable core mechanical equipment in modern agriculture, the electric seeder's core mission is to efficiently, accurately, and evenly sow seeds to the appropriate depth in the soil, laying a solid foundation for high and stable crop yields.

[0003] Current mainstream designs typically rigidly fix the seeder to the chassis frame using mounting brackets and bolts. However, this fixing method has significant drawbacks in practical applications. During sowing, farmland surfaces generally have uneven terrain. Because the seeder is rigidly connected to the chassis, it lacks independent terrain adaptability and struggles to maintain a constant sowing depth during movement. This severely uneven sowing depth not only directly wastes valuable seeds but also leads to uneven germination, significant differences in seedling growth, and ultimately affects overall yield potential.

[0004] Therefore, there is an urgent need for an adaptive angle adjustment device for seeders to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adaptive angle adjustment device for a seeder, which has the advantage of being able to adapt to different terrains and sowing depths.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An adaptive angle adjustment device for a seeder includes a walking chassis frame, a mounting rod, a mounting frame, and a seeder mounting base. The mounting frame is hinged to the seeder mounting base, and the seeder mounting base is fixedly mounted on the mounting rod by a saddle clamp and bolts. An angle adjustment locking mechanism for adjusting the angle of the mounting frame is provided between the mounting frame and the seeder mounting base.

[0008] The advantages of this scheme are at least as follows: the seeder is hinged to the seeder mounting base via a mounting frame and is equipped with an angle adjustment and locking mechanism, which allows the angle of the mounting frame to be adjusted according to actual sowing needs, thereby adjusting the angle of the seeder. At the same time, this design enables the seeder to adapt to different terrains and sowing depths, improving the adaptability and flexibility of sowing.

[0009] The present invention is further configured such that the angle adjustment locking mechanism includes:

[0010] An adjusting rod, one end of which is hinged to the mounting bracket;

[0011] An oblong hole is formed on the seeder mounting base;

[0012] A fixed handle is provided, and the other end of the adjusting rod passes through the elongated hole and is threadedly connected to the fixed handle.

[0013] The advantages of this scheme are at least as follows: when the angle adjustment locking mechanism needs to be adjusted, the fixing handle can be loosened manually or with a tool, allowing the adjusting rod to move freely within the elongated hole. During the adjustment process, the elastic element will be stretched or compressed, providing the corresponding reaction force as needed. After confirming that the angle of the mounting frame is appropriate, the fixing handle is tightened to fix the adjusting rod within the elongated hole, thereby locking the angle of the mounting frame. This allows the mounting frame to adapt to different terrains and sowing environments.

[0014] The present invention is further configured to include an elastic element, which is sleeved on the adjusting rod and located on the adjusting rod between the mounting frame and the seeder mounting base.

[0015] The advantages of this scheme are at least as follows: the design of the elastic element can provide a certain buffering effect, absorb the vibration caused by the terrain undulation during the sowing process, maintain the stability of the mounting frame angle, and help improve the sowing quality.

[0016] The present invention is further configured such that: a plurality of semi-circular protrusions are provided on the outer periphery of the fixed handle, and the semi-circular protrusions are evenly distributed along the circumference of the fixed handle.

[0017] The advantages of this design are at least as follows: the semi-circular protrusion increases the friction between the fixed handle and the palm, while providing a good grip and effectively resisting slippage in sweaty, oily, or humid environments.

[0018] The present invention is further configured such that the outer periphery of the semi-circular protrusion is provided with knurling.

[0019] The advantages of this scheme are at least as follows: the knurled design further increases the coefficient of friction of the semi-circular bump surface, thereby resisting extreme working conditions such as oil stains and moisture.

[0020] The present invention is further configured such that: the mounting rod is rotatably mounted on the chassis frame, and an angle adjustment actuator for adjusting the angle of the mounting rod is provided between the mounting rod and the chassis frame.

[0021] The advantages of this solution are at least as follows: the angle between the mounting rod and the walking chassis frame is adjustable, allowing the seeder to adapt to different terrains and planting needs. The angle adjustment actuator can precisely adjust the angle of the mounting rod, achieving accurate control of the working angle of the mounting rod, improving the sowing quality and precision. Moreover, the working posture of the seeder can be quickly adjusted, reducing the time spent on frequent reinstallation or adjustment of the equipment under different operating conditions, and improving operating efficiency.

[0022] The present invention is further configured such that: the angle adjustment actuator includes two electric push rods, one end of which is hinged to the chassis frame and the other end is hinged to the mounting rod via a hinge seat, and the two electric push rods are symmetrically arranged on both sides of the mounting rod.

[0023] The advantages of this scheme are at least as follows: by using two electric push rods symmetrically arranged on both sides of the mounting rod, a stable pushing and pulling force can be provided, and the angle change of the mounting rod can be precisely controlled. At the same time, the two electric push rods work together to distribute the load, enhance the load-bearing capacity of the entire angle adjustment actuator, adapt to the torque requirements under different terrains and working conditions, and ensure the stability of the equipment under complex working conditions.

[0024] The present invention is further configured such that the hinge seat and the mounting rod are integrally formed.

[0025] The advantages of this solution are at least as follows: the integrated design of the hinge base and the mounting rod avoids the weakness of connecting multiple parts, resulting in higher overall strength, less loosening or breakage, and improved durability.

[0026] The present invention is further configured such that the walking chassis frame, mounting rod, mounting frame and seeder mounting base are all coated with a protective layer.

[0027] The advantages of this solution are at least as follows: the protective layer can effectively prevent moisture, dust, chemical corrosion, etc. from eroding the chassis frame, mounting rods, mounting frames, and seeder mounting base, thereby improving the service life of each component.

[0028] The present invention is further configured such that the protective layer is a rust-proof coating.

[0029] In summary, this utility model has at least the following advantages:

[0030] 1. By setting an angle adjustment and locking mechanism, the angle of the mounting frame can be adjusted according to the actual sowing needs, thereby adjusting the angle of the seeder. At the same time, this design enables the seeder to adapt to different terrains and sowing depths, improving the adaptability and flexibility of sowing.

[0031] 2. By setting an angle adjustment actuator, the angle between the mounting rod and the walking chassis frame is adjustable, enabling the seeder to adapt to different terrains and planting needs. The angle adjustment actuator can precisely adjust the angle of the mounting rod, achieving precise control of the working angle of the mounting rod, improving the seeding quality and accuracy. It can also quickly adjust the working posture of the seeder, reducing the time spent on frequent reinstallation or adjustment of the equipment under different operating conditions, and improving work efficiency.

[0032] 3. By incorporating elastic components, the design of these components provides a certain degree of cushioning, absorbing vibrations caused by terrain undulations during sowing, maintaining the stability of the mounting frame angle, and helping to improve sowing quality. Attached Figure Description

[0033] Figure 1 This is an overall schematic diagram of this embodiment;

[0034] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0035] Figure 3 This is an overall schematic diagram of the seeder mounting base in this embodiment;

[0036] Figure 4 This is an overall schematic diagram of the adjusting rod and the fixed handle in this embodiment.

[0037] Reference numerals: 1. Walking chassis frame; 2. Mounting rod; 3. Mounting frame; 4. Seeder mounting base; 5. Saddle clamp; 6. Angle adjustment locking mechanism; 601. Adjusting rod; 602. Oblong hole; 603. Fixed handle; 604. Elastic element; 7. Semi-circular protrusion; 8. Angle adjustment actuator; 801. Electric push rod; 802. Hinge seat. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0040] Example 1

[0041] like Figure 1As shown, an adaptive angle adjustment device for a seeder includes a walking chassis frame 1, a mounting rod 2, a mounting frame 3, and a seeder mounting seat 4. The seeder is rotatably mounted on the mounting frame 3, and the mounting frame 3 is hinged to the seeder mounting seat 4. The seeder mounting seat 4 is fixedly mounted on the mounting rod 2 by a saddle clamp 5 and bolts. An angle adjustment locking mechanism 6 for adjusting the angle of the mounting frame 3 is provided between the mounting frame 3 and the seeder mounting seat 4.

[0042] like Figure 2 As shown (refer to) Figure 3 To enable the seeder to adapt to different terrains and sowing depths, in some embodiments, the angle adjustment locking mechanism 6 includes: an adjusting rod 601, one end of which is hinged to the mounting frame 3; an elongated hole 602, which is formed on the seeder mounting base 4; a fixed handle 603, the other end of which passes through the elongated hole 602 and is threadedly connected to the fixed handle 603; and an elastic element 604, specifically a spring, which is sleeved on the adjusting rod 601 and located on the adjusting rod 601 between the mounting frame 3 and the seeder mounting base 4. The design of the elastic element 604 can provide a certain buffering effect, absorb the vibration caused by terrain undulations during sowing, maintain the stability of the mounting frame angle, and help improve sowing quality. In some other embodiments, in order to better fit the elastic element 604 onto the adjusting rod 601, two pads for auxiliary support of the elastic element 604 are also sleeved on the adjusting rod 601, wherein the pads are located at the beginning and end of the elastic element 604.

[0043] like Figure 4 As shown, in some embodiments, to prevent slippage when rotating the fixed handle 603, a plurality of semi-circular protrusions 7 are provided on the outer periphery of the fixed handle 603, and the semi-circular protrusions 7 are evenly distributed along the circumference of the fixed handle 603. It is worth mentioning that the outer periphery of the semi-circular protrusions 7 is provided with knurling (not shown in the figure). The semi-circular protrusions 7 increase the friction between the fixed handle 603 and the palm, and at the same time provide a good grip. They can effectively resist slippage in sweaty, oily, or humid environments. The knurling further increases the coefficient of friction of the surface of the semi-circular protrusions 7, thereby resisting extreme working conditions such as oil and moisture. In some other embodiments, the semi-circular protrusions 7 can also be protrusions with a triangular cross-section and rounded corners, or they can be protrusions with a rectangular cross-section and rounded corners. Whether it is a semi-circular protrusion 7, a protrusion with a triangular cross-section, or a protrusion with a rectangular cross-section, they are all integrally formed with the fixed handle 603.

[0044] The walking chassis frame 1, mounting rod 2, mounting frame 3, and seeder mounting base 4 are all coated with a protective layer, which is worth mentioning as an anti-rust coating. This protective layer effectively prevents moisture, dust, and chemical corrosion from eroding the walking chassis frame 1, mounting rod 2, mounting frame 3, and seeder mounting base 4, thus extending the service life of each component.

[0045] Example 2

[0046] like Figure 2 As shown, in some embodiments, in order to quickly adjust the working posture of the seeder and reduce the time spent on frequent reinstallation or adjustment of the equipment under different operating conditions, the mounting rod 2 is rotatably mounted on the walking chassis frame 1, and an angle adjustment actuator 8 for adjusting the angle of the mounting rod 2 is provided between the mounting rod 2 and the walking chassis frame 1.

[0047] The angle adjustment actuator 8 includes two electric push rods 801. One end of each electric push rod 801 is hinged to the chassis frame 1, and the other end is hinged to the mounting rod 2 via a hinge seat 802. The two electric push rods 801 are symmetrically arranged on both sides of the mounting rod 2. This arrangement provides a stable push-pull force and precisely controls the angle change of the mounting rod 2. At the same time, the two electric push rods 801 work together to distribute the load and enhance the load-bearing capacity of the entire angle adjustment actuator 8. This allows it to adapt to torque requirements under different terrains and working conditions, ensuring the stability of the equipment under complex working conditions. In other embodiments, the electric push rods 801 can also be replaced by existing components that can be driven to extend, such as hydraulic cylinders and hydraulic oil cylinders.

[0048] It is worth mentioning that the hinge seat 802 and the mounting rod 2 are integrally molded. The integral molding design avoids the weakness of connecting multiple parts, resulting in higher overall strength, making it less prone to loosening or breakage, and improving durability.

[0049] Example 3

[0050] Based on Embodiment 1 or Embodiment 2, this utility model also provides an operation method for an adaptive angle adjustment device for a seeder. During use, the angle adjustment locking mechanism 6 and the angle adjustment actuator 8 are used to adapt to the terrain of the current sowing environment according to the sowing environment. When the angle adjustment locking mechanism 6 needs to be adjusted, the fixed handle 603 is loosened manually or with a tool, so that the adjustment rod 601 can move freely in the elongated hole 602. During the adjustment process, the elastic element 604 will be stretched or compressed, providing corresponding reaction force as needed. After confirming that the angle of the mounting frame 3 is appropriate, the fixed handle 603 is tightened to fix the adjustment rod 601 in the elongated hole 602, thereby locking the angle of the mounting frame 3. The angle adjustment locking mechanism 6 can adjust the angle of the mounting frame 3 according to the actual sowing needs. At the same time, this design enables the seeder to adapt to different terrains and sowing depth requirements, improving the adaptability and flexibility of sowing.

[0051] When adjusting the angle adjustment actuator 8, first check whether the connection position between the mounting rod 2 and the walking chassis frame 1 is accurate. Ensure that the mounting rod 2 is installed on the walking chassis frame 1 through a suitable rotating connector (such as a bearing or shaft) and can rotate freely around its connection point with the walking chassis frame 1. Then, by controlling the two electric push rods 801 to start, when the electric push rods 801 extend, they will push the mounting rod 2 to rotate upward around its connection point with the walking chassis frame 1; when the electric push rods 801 shorten, they will pull the mounting rod 2 to rotate downward around its connection point with the walking chassis frame 1, thereby adjusting the mounting frame 3 to the appropriate sowing angle.

[0052] In some other embodiments, the adjustment sequence may be as follows: first, the angle adjustment actuator 8 is adjusted to make preliminary adjustments to the mounting frame 3 on the mounting rod 2 and the seeder on the mounting frame 3; then, the angle adjustment locking mechanism 6 is used to make minor adjustments to the mounting frame 3 and the seeder on the mounting frame 3, thereby ensuring that the seeder can achieve better sowing results.

[0053] The angle between the mounting rod 2 and the walking chassis frame 1 is adjustable, allowing the mounting frame 3 to adapt to different terrains and planting needs. The angle adjustment actuator 8 can precisely adjust the angle of the mounting rod 2, achieving precise control of the working angle of the mounting frame 3, improving sowing quality and accuracy. It can also quickly adjust the working posture of the seeder, reducing the time spent on frequent reinstallation or adjustment of the equipment under different operating conditions, and improving operating efficiency.

[0054] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0055] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A seeder adaptive angle adjustment device, characterized in that: The device includes a walking chassis frame (1), a mounting rod (2), a mounting bracket (3), and a seeder mounting seat (4). The mounting bracket (3) is hinged to the seeder mounting seat (4). The seeder mounting seat (4) is fixedly mounted on the mounting rod (2) by a saddle clamp (5) and bolts. An angle adjustment locking mechanism (6) for adjusting the angle of the mounting bracket (3) is provided between the mounting bracket (3) and the seeder mounting seat (4).

2. The adaptive angle adjustment device for a seeder according to claim 1, characterized in that: The angle adjustment locking mechanism (6) includes: Adjusting rod (601), one end of which is hinged to the mounting bracket (3); An elongated hole (602) is formed on the seeder mounting base (4); The fixed handle (603) is provided, and the other end of the adjusting rod (601) passes through the elongated hole (602) and is threadedly connected to the fixed handle (603).

3. The adaptive angle adjustment device for a seeder according to claim 2, characterized in that: It also includes an elastic element (604), which is sleeved on the adjusting rod (601) and located on the adjusting rod (601) between the mounting frame (3) and the seeder mounting base (4).

4. The adaptive angle adjustment device for a seeder according to claim 2, characterized in that: The fixed handle (603) has a plurality of semi-circular protrusions (7) on its outer periphery, and the semi-circular protrusions (7) are evenly distributed along the circumference of the fixed handle (603).

5. The adaptive angle adjustment device for a seeder according to claim 4, characterized in that: The outer periphery of the semi-circular protrusion (7) is provided with knurling.

6. The adaptive angle adjustment device for a seeder according to claim 1, characterized in that: The mounting rod (2) is rotatably mounted on the chassis frame (1), and an angle adjustment actuator (8) for adjusting the angle of the mounting rod (2) is provided between the mounting rod (2) and the chassis frame (1).

7. The adaptive angle adjustment device for a seeder according to claim 6, characterized in that: The angle adjustment actuator (8) includes two electric push rods (801). One end of the electric push rod (801) is hinged to the chassis frame (1), and the other end is hinged to the mounting rod (2) through the hinge seat (802). The two electric push rods (801) are symmetrically arranged on both sides of the mounting rod (2).

8. The adaptive angle adjustment device for a seeder according to claim 7, characterized in that: The hinge seat (802) and the mounting rod (2) are integrally formed.

9. The adaptive angle adjustment device for a seeder according to claim 1, characterized in that: The walking chassis frame (1), mounting rod (2), mounting bracket (3) and seeder mounting base (4) are all coated with a protective layer.

10. The adaptive angle adjustment device for a seeder according to claim 9, characterized in that: The protective layer is a rust-proof coating.