A highly intelligent regulated harvester header

By introducing a lever amplification mechanism and guide chute into the harvester header, the problem of hydraulic cylinder stroke limitation was solved, enabling efficient and stable lifting of the header in complex terrain, thus improving the harvester's operating quality and terrain adaptability.

CN224538849UActive Publication Date: 2026-07-24培黎职业学院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
培黎职业学院
Filing Date
2025-09-05
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The hydraulic cylinder stroke of existing harvester headers is limited, making it difficult to adapt to complex terrain with drastic undulations. Furthermore, fluctuations in the hydraulic system and changes in load affect the stability of header height control.

Method used

The mechanism employs a lever amplification system, which uses a symmetrically installed lifting structure and guide rails to drive a guide rod through a hydraulic cylinder to move a sliding plate, thereby achieving smooth lifting and lowering of the cutting table. This amplifies the stroke of the hydraulic cylinder and enhances structural stability and precision.

Benefits of technology

The lifting range of the header has been significantly increased, improving the harvester's operating quality and efficiency in complex terrain, and ensuring stability and precision.

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Abstract

The utility model relates to the technical field of harvester header, specifically discloses a height intelligent regulation's harvester header, including two symmetrical installation's lifting structure, the lifting structure includes the flat plate, the lower end surface fixed connection of flat plate has the right angle board, the vertical section bottom of right angle board is connected with the guide rod through the pin shaft activity, the horizontal section of right angle board is fixedly connected with flat plate, and left end fixedly connected with the fixed frame, through lever amplification mechanism, effectively enlarged the limited stroke of hydraulic cylinder, significantly increased the lifting range of header, makes it better adapt to the complex terrain of violent undulation. Symmetrical arrangement's lifting structure and the solid reinforcing design guarantee the balance and structural stability when lifting huge header, avoid the partial load and the shaking. The use of guide chute ensures the smooth and accurate lifting process, improves the intelligence of height control, finally effectively improves the operation quality, terrain adaptability and work efficiency of harvester.
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Description

Technical Field

[0001] This utility model relates to the field of harvester header technology, and specifically discloses a highly intelligent adjustable harvester header. Background Technology

[0002] As a crucial component of modern agricultural machinery, the performance of harvesters directly impacts the efficiency and quality of crop harvesting. The header is a key working component of the harvester, responsible for the initial operations of cutting and conveying crops. To ensure optimal operating conditions under varying crop conditions and undulating terrain, modern harvesters are typically equipped with a hydraulic lifting system, which adjusts the header height in real time through the extension and retraction of hydraulic cylinders. This adjustment capability is vital for preventing the header from colliding with the ground, minimizing stubble loss, and adapting to crop lodging.

[0003] Currently, most harvester headers on the market use a hydraulic cylinder directly hinged to the header for their lifting system. While this structure is simple, its lifting range and adjustment performance are largely limited by the stroke and extension speed of the hydraulic cylinder itself. In practical applications, this design reveals some inherent flaws: First, due to limitations in installation space and the manufacturing cost of the hydraulic cylinder, the stroke of the hydraulic cylinder is often small, resulting in a limited overall lifting range of the header, making it difficult to fully adapt to complex terrain with dramatic undulations; second, when pushing and pulling the large and heavy header, the smoothness and precision of the hydraulic cylinder's extension and retraction movements are easily affected by fluctuations in the hydraulic system and changes in load, which may affect the stability of header height control and ultimately impact the quality of harvesting operations. Utility Model Content

[0004] This invention proposes a highly intelligent adjustable harvester header. Through a lever amplification mechanism, the limited stroke of the hydraulic cylinder is effectively amplified, significantly increasing the lifting range of the header, enabling it to better adapt to complex terrain with drastic undulations, and effectively improving the harvester's operating quality, terrain adaptability, and work efficiency.

[0005] This invention is implemented as follows: a highly intelligent adjustable harvester header includes two symmetrically installed lifting structures. Each lifting structure includes a flat plate, with a right-angle plate fixedly connected to the lower end of the flat plate. A guide rod is movably connected to the bottom of the vertical section of the right-angle plate via a pin. The horizontal section of the right-angle plate is fixedly connected to the flat plate, and a fixing frame is fixedly connected to its left end. A guide groove is fixedly connected to the outer wall of the fixing frame, and a sliding plate is slidably connected inside the guide groove. The sliding direction of the sliding plate is parallel to the vertical section of the right-angle plate, and the bottom end of the sliding plate is movably connected to the left end of the guide rod via a connecting rod.

[0006] As a preferred embodiment of the highly intelligent adjustable harvester header of this utility model, the right end of the plate is movably connected to a drive source via a hinge, the output end of the drive source is fixedly connected to a connector, and the connector is movably connected to the other end of the guide rod.

[0007] As a preferred embodiment of the highly intelligent adjustable harvester header of this utility model, each of the two sliding plates is fixedly connected to a connector on the upper side of opposite sides. The outer wall of the connector is provided with multiple connecting screw holes, and the two connectors are used to install and fix the harvester header.

[0008] As a preferred embodiment of the highly intelligent adjustable harvester header of this utility model, the upper end face of the plate is fixedly connected to a mounting plate, and the outer wall of the mounting plate is provided with multiple mounting screw holes.

[0009] As a preferred embodiment of the highly intelligent adjustable harvester header of this utility model, a reinforcing plate is fixedly connected to the inner side of the right-angle plate.

[0010] As a preferred embodiment of the highly intelligent adjustable harvester header of this utility model, the driving source is a hydraulic cylinder.

[0011] The beneficial effects of this utility model are:

[0012] This device effectively amplifies the limited stroke of the hydraulic cylinder through a lever amplification mechanism, significantly increasing the lifting range of the header and enabling it to better adapt to complex terrain with dramatic undulations. The symmetrically arranged lifting structure and robust reinforced design ensure balance and structural stability when lifting the massive header, preventing uneven loading and swaying. The use of guide chutes ensures smooth and precise lifting, enhancing the intelligence of height control. Modular connection and installation methods enhance the system's versatility and ease of use, allowing for convenient adaptation to different harvester models, ultimately effectively improving the harvester's operating quality, terrain adaptability, and work efficiency. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a structural diagram of the present invention;

[0015] Figure 2 This is a structural diagram of the connector of this utility model in the raised state;

[0016] Figure 3This is a three-dimensional structural diagram of the connector of this utility model.

[0017] The markings in the diagram are: 1. Lifting structure; 2. Flat plate; 3. Right-angle plate; 4. Pin; 5. Guide rod; 6. Fixing frame; 7. Guide groove; 8. Sliding plate; 9. Connecting rod; 10. Hinge seat; 11. Drive source; 12. Connector; 13. Connecting piece; 14. Connecting screw hole; 15. Mounting plate; 16. Mounting screw hole; 17. Reinforcing plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0019] Please see Figure 1-3 A highly intelligent adjustable harvester header includes two symmetrically installed lifting structures 1. Each lifting structure 1 includes a flat plate 2. A right-angle plate 3 is fixedly connected to the lower end of the flat plate 2. A guide rod 5 is movably connected to the bottom of the vertical section of the right-angle plate 3 via a pin 4. The horizontal section of the right-angle plate 3 is fixedly connected to the flat plate 2, and a fixing frame 6 is fixedly connected to its left end. A guide groove 7 is fixedly connected to the outer wall of the fixing frame 6. A sliding plate 8 is slidably connected inside the guide groove 7. The sliding direction of the sliding plate 8 is parallel to the vertical section of the right-angle plate 3. The bottom end of the sliding plate 8 is movably connected to the left end of the guide rod 5 via a connecting rod 9.

[0020] In this embodiment: the main body of each lifting structure 1 is a flat plate 2 for providing a stable installation foundation. A right-angle plate 3 for support is fixed below the flat plate 2. The hub for power transmission is the guide rod 5. One end of the guide rod 5 is hinged to the bottom of the vertical section of the right-angle plate 3 through a pin 4, so that it can swing flexibly. The extension or retraction of the drive source 11 will directly push or pull the other end of the guide rod 5, causing the guide rod 5 to rotate around the pin 4. The rotation of the guide rod 5 is converted into vertical linear motion of the sliding plate 8 hinged to it in the guide groove 7 fixed on the fixed frame 6 through a connecting rod 9. Since the sliding plate 8 is directly connected to the heavy cutting table through the connecting piece 13 on it, the small linear stroke of the hydraulic cylinder is amplified and converted into a large-amplitude and smooth lifting motion of the cutting table. This cleverly breaks through the limitation of the hydraulic cylinder's own stroke on the lifting range of the cutting table, effectively amplifies the limited stroke of the drive source 11, and significantly increases the lifting range of the cutting table, so that it can better adapt to the complex terrain with drastic undulations.

[0021] As a technical optimization of this utility model, the right end of the plate 2 is movably connected to the drive source 11 through the hinge seat 10, the output end of the drive source 11 is fixedly connected to the connector 12, and the connector 12 is movably connected to the other end of the guide rod 5.

[0022] In this embodiment, the drive source 11 is preferably a hydraulic cylinder and is connected to the plate 2 via the hinge seat 10. Its output end is movably connected to the guide rod 5 via the connector 12. Utilizing the advantages of the hydraulic cylinder as the drive source 11, such as large output force, smooth and reliable movement, and mature technology, it can provide ample and controllable power for the lifting of the heavy cutting platform. At the same time, the hinged connection method ensures smooth and flexible power transmission and avoids structural interference.

[0023] As a technical optimization of this utility model, a connector 13 is fixedly connected to the upper part of each of the two sliding plates 8 on opposite sides. Multiple connecting screw holes 14 are opened through the outer wall of the connector 13, and the two connectors 13 are used to install and fix the harvester header.

[0024] In this embodiment: A connector 13 with multiple connecting screw holes 14 is provided above the opposite side of the two sliding plates 8, so that the entire lifting structure 1 and the cutting table body can be detachably modularly connected. The multiple connecting screw holes 14 provide flexible installation adaptability, allowing the connection position to be adjusted according to the center of gravity and structural characteristics of different models of cutting tables, ensuring the stability and versatility of the connection between the lifting structure and the cutting table.

[0025] As a technical optimization of this utility model, a mounting plate 15 is fixedly connected to the upper end face of the flat plate 2, and a plurality of mounting screw holes 16 are opened through the outer wall of the mounting plate 15.

[0026] In this embodiment: A mounting plate 15 with multiple mounting screw holes 16 is fixedly installed on the upper surface of the flat plate 2. It is flexibly and firmly installed onto the main frame of the harvester by bolts and other fasteners, which improves the overall structural rigidity and integration of the equipment and facilitates installation and maintenance.

[0027] As a technical optimization of this utility model, a reinforcing plate 17 is fixedly connected to the inner side of the right-angle plate 3.

[0028] In this embodiment, a reinforcing plate 17 is fixedly connected to the inner side of the right-angle plate 3, which enhances the structural rigidity and resistance to bending deformation of the right-angle plate 3, thereby ensuring the accuracy and reliability of the entire lifting motion process.

[0029] As a technical optimization of this utility model, the driving source 11 is a hydraulic cylinder.

[0030] In this embodiment, the drive source 11 is a hydraulic cylinder. The drive source 11 is preferably a hydraulic cylinder and is connected to the plate 2 through the hinge seat 10. Its output end is movably connected to the guide rod 5 through the connector 12. By utilizing the advantages of the hydraulic cylinder as the drive source 11, such as large output force, smooth and reliable movement and mature technology, it can provide sufficient and controllable power for the lifting of the heavy cutting platform.

[0031] The working principle and usage process of this utility model are as follows: When the header needs to be lifted, the hydraulic cylinder, acting as the drive source 11, extends. Its output end pushes one end of the guide rod 5 through the connector 12, causing the guide rod 5 to rotate counterclockwise around the pin 4 connected to the right-angle plate 3. The rotation of the guide rod 5 pushes the sliding plate 8, which is hinged to it through the connecting rod 9. Since the sliding plate 8 is constrained within the guide groove 7 on the fixed frame 6, it can only slide upwards in the vertical direction, thus converting the rotational motion of the guide rod 5 into the linear lifting motion of the sliding plate 8. The connecting piece 13, which is fixed to the sliding plate 8, rises accordingly, ultimately driving the harvester header, which is fixed to the connecting piece 13, to rise smoothly. The descent process is the opposite: the hydraulic cylinder retracts, pulling the guide rod 5 to rotate, which pushes the sliding plate 8 downwards along the guide groove 7 through the connecting rod 9, thereby lowering the header. Throughout the process, the guide groove 7 provides precise guidance for the sliding plate 8 and prevents lateral swaying. The application of the lever principle amplifies the small stroke of the hydraulic cylinder into a large lifting stroke of the header.

[0032] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", 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 utility model 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 utility model.

[0033] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A highly intelligent adjustable harvester header, characterized in that: The system includes two symmetrically installed lifting structures (1). Each lifting structure (1) includes a flat plate (2). A right-angle plate (3) is fixedly connected to the lower end of the flat plate (2). A guide rod (5) is movably connected to the bottom of the vertical section of the right-angle plate (3) via a pin (4). The horizontal section of the right-angle plate (3) is fixedly connected to the flat plate (2), and a fixing frame (6) is fixedly connected to its left end. A guide groove (7) is fixedly connected to the outer wall of the fixing frame (6). A sliding plate (8) is slidably connected inside the guide groove (7). The sliding direction of the sliding plate (8) is parallel to the vertical section of the right-angle plate (3). The bottom end of the sliding plate (8) is movably connected to the left end of the guide rod (5) via a connecting rod (9).

2. The highly intelligent adjustable harvester header according to claim 1, characterized in that: The right end of the plate (2) is movably connected to a drive source (11) via a hinge (10). The output end of the drive source (11) is fixedly connected to a connector (12), and the connector (12) is movably connected to the other end of the guide rod (5).

3. The highly intelligent adjustable harvester header according to claim 1, characterized in that: A connector (13) is fixedly connected to the top of each of the two sliding plates (8) on opposite sides. The outer wall of the connector (13) is provided with multiple connecting screw holes (14). The two connectors (13) are used to install and fix the harvester header.

4. The highly intelligent adjustable harvester header according to claim 1, characterized in that: The upper end face of the plate (2) is fixedly connected to a mounting plate (15), and the outer wall of the mounting plate (15) is provided with multiple mounting screw holes (16).

5. A highly intelligent adjustable harvester header according to claim 1, characterized in that: A reinforcing plate (17) is fixedly connected to the inner side of the right-angle plate (3).

6. A highly intelligent adjustable harvester header according to claim 2, characterized in that: The drive source (11) is a hydraulic cylinder.