A corn and wheat combine

Abstract

The utility model relates to corn wheat combined operation machine field, concretely is a kind of corn wheat combined operation machine, including combine, the outside of combine is provided with gantry, the inside rotation of gantry is connected with header, the top of header is provided with linkage adjusting assembly, the linkage adjusting assembly is used to drive the header rotation to switch corn, wheat harvesting mode, the both sides of gantry are rotatably connected with guide component, the guide component is switched with the synchronous guide state of header overturning to adapt to corresponding crop harvesting, this corn wheat combined operation machine, driver operates pull rod to drive the pull cable that is through cab and is worn L type steel plate telescopic, pull cable is outside fixed pulley, header outside movable pulley power-saving transmission, header overturns in the U type groove of gantry by U block, spring pushes positioning pin locking mode, without frequently changing header, solve the problem that traditional combined operation machine switches complicated, low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, and more specifically to a corn-wheat combined operation machine. Background Technology

[0002] The corn-wheat combine harvester is a multi-functional agricultural machine adapted to both corn and wheat. It integrates traditional multi-equipment step-by-step operations, and can complete the harvesting, threshing, cleaning, and finished product collection of two crops in one go. It can also handle some straw. It eliminates the need for frequent equipment changes. Its core value is to improve agricultural production efficiency and reduce labor and equipment costs.

[0003] The corn-wheat combined harvester comprises five key components. The main frame serves as the overall support structure, providing the installation foundation and integration for all functional modules. The dual-adaptive harvesting device is equipped with a switchable or adjustable header. For wheat harvesting, a narrow header is used to harvest wheat ears, while for corn harvesting, a wide header or ear-picking device is used to harvest stalks and corn cobs. The threshing and cleaning system, consisting of a threshing drum, cleaning screen, and blower, is the core component ensuring grain purity. It separates grains from cobs and stalks, filters impurities, and blows away light straw fragments. The straw processing module mainly consists of a shredder or collection device, which can crush and return the threshed straw to the field or compress and collect it. The power and control system uses an engine as the power source, combined with a cab and hydraulic control system, which can adjust parameters such as operating speed and header height.

[0004] Existing corn-wheat combine harvesters, when harvesting both corn and wheat, need to consider the harvesting characteristics of both crops, which can lead to difficulties in accurately matching operating parameters. This results in frequent adjustments to operating settings and a significant amount of time wasted. To address this, we propose a corn-wheat combine harvester. Utility Model Content

[0005] One of the technical problems that this application aims to solve is that traditional combined operation machines require frequent disassembly and replacement of the cutting platform, resulting in low switching efficiency and cumbersome operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A corn-wheat combined harvester includes a combined harvester with a frame externally mounted on the machine. A cutter head is rotatably connected inside the frame. A linkage adjustment component is mounted on the top of the cutter head, which drives the cutter head to rotate to switch between corn and wheat harvesting modes. Guide components are rotatably connected to both sides of the frame, and the guide components synchronously switch their guiding states as the cutter head rotates to adapt to the harvesting of the corresponding crops.

[0007] In some embodiments, the linkage adjustment component includes a movable pulley disposed outside the cutting table, a fixed pulley rotatably connected to the outside of the frame, a cable wound between the movable pulley and the fixed pulley, the cable being tensioned and fitted into the grooves of the two pulleys to achieve force transmission, and a fixed seat provided inside the cab of the combined machine.

[0008] In some embodiments, a tie rod is rotatably connected inside the fixed base, one end of the cable near the fixed base is disposed outside the tie rod, and the other end is disposed outside the movable pulley. An L-shaped steel plate is provided on the inner wall of the cab of the combined machine, and the cable passes through the interior of the cab of the combined machine and through the L-shaped steel plate.

[0009] In some embodiments, U-shaped blocks are provided on both sides of the cutting table, and U-shaped grooves are provided on both sides of the frame. Springs are provided inside the U-shaped grooves, and positioning pins are slidably connected inside the U-shaped grooves.

[0010] In some embodiments, the spring is disposed outside the locating pin, the U-shaped block engages with the U-shaped groove, and the locating pin is slidably connected inside the U-shaped block and engages with the U-shaped block by the elastic force of the spring.

[0011] In some embodiments, the guide assembly includes two adapters disposed on the outside of the platform, and hinge seats are provided on both sides of the outside of the platform, with the guide assembly rotatably connected inside the hinge seats.

[0012] In some embodiments, a linkage rod is provided on the top of the platform, with one end of the linkage rod away from the guide assembly located outside the adapter and the other end located outside the guide assembly, so as to realize the power linkage between the adapter and the guide assembly.

[0013] In some embodiments, the guide assembly has a plate-like structure and is correspondingly disposed on both sides of the feed end of the header. The guide assembly adjusts the distance between itself and the header by rotating around the hinge seat to adapt to the width of the feed channel for different crops.

[0014] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a corn-wheat combined harvester, which has the following beneficial effects: 1. In this utility model, the driver operates a lever to rotate, which drives the cable that runs through the cab and passes through the L-shaped steel plate to extend and retract. The cable is tensioned and fitted into the grooves of a fixed pulley outside the frame and a movable pulley outside the cutter head. The fixed pulley changes the direction of the pulling force, and the movable pulley cooperates to form a force-saving transmission structure, which transmits the force to the linkage adjustment component to drive its action. The cutter head is flipped by the rotation of the U-shaped blocks on both sides in the U-shaped groove of the frame. The spring in the U-shaped groove pushes the positioning pin to slide and engage with the U-shaped block to lock the position of the cutter head in the corn or wheat harvesting mode. This solves the problems of traditional combined operation machines that require frequent disassembly and replacement of the cutter head, low switching efficiency, and cumbersome operation.

[0015] 2. In this utility model, while the header completes the mode switching, the adapter on the outside of the frame transmits power to the guide components in the hinge seats on both sides through the linkage rod. The guide components rotate around the hinge seats to adjust the distance between themselves and the header, adapting to the width of the feed channel for the corresponding crop. This solves the problem of poor crop feed, missed cutting, or damaged ears of fruit caused by the mismatch between the guide structure and the crop shape during the harvesting of two crops. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the cutting platform of this utility model; Figure 3 This is a schematic diagram of the linkage adjustment component of this utility model; Figure 4 This is a schematic diagram of the structure of the platform of this utility model; Figure 5 for Figure 4 Enlarged view of A in the middle; Figure 6 This is a schematic diagram of the structure of the cutting platform of this utility model; Figure 7 This is a schematic diagram of the structure of the guide component of this utility model.

[0018] in: 1. Combined machine; 2. Cutting table; 3. Frame; 4. Linkage adjustment assembly; 5. Guide assembly; 6. Fixed pulley; 7. Moving pulley; 8. Fixed seat; 9. Tie rod; 10. L-shaped steel plate; 11. Cable; 12. U-shaped groove; 13. Spring; 14. Positioning pin; 15. U-shaped block; 16. Hinge seat; 17. Adapter; 18. Linkage rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figure 1 - Figure 5This utility model provides a technical solution: a corn-wheat combined harvester, including a combined machine 1. The combined machine 1 provides an installation foundation for components such as a frame 3, realizing integrated harvesting of corn and wheat. The frame 3 is externally mounted on the combined machine 1, defining the relative installation positions of each component and ensuring structural stability during operation. A cutter head 2 is rotatably connected inside the frame 3. The cutter head 2 is used to directly contact and cut the crop, transporting it to the subsequent processing mechanism. A linkage adjustment component 4 is mounted on the top of the cutter head 2. The linkage adjustment component 4, as the core component for power transmission and motion control, receives external power and converts it into a force driving the cutter head 2 to rotate, coordinating the mode switching action of the cutter head 2, and linking... Adjustment component 4 drives the header 2 to rotate, switching between corn and wheat harvesting modes. By adjusting the working angle of the header 2, the cutting area and conveying path of the header 2 are adapted to the fine, low-lying wheat stalks and the thick, tall corn stalks, respectively, meeting the harvesting process requirements of both crops. Guide components 5 are rotatably connected to both sides of the frame 3. Located on the feed side of the header 2, the guide components 5 guide the crops towards the cutting area of ​​the header 2, preventing them from scattering to the sides and causing missed harvests. The guide components 5 switch their guiding states synchronously with the rotation of the header 2 to adapt to the corresponding crop harvesting. In wheat harvesting mode, the guide spacing is adjusted to be narrower, allowing fine stalks to enter the header 2 neatly; in corn harvesting mode, the spacing is adjusted to be wider. The guide spacing accommodates the robust shape of corn plants, ensuring smooth crop loading. The linkage adjustment component 4 includes a movable pulley 7, which serves as a movable fulcrum of the transmission structure and moves synchronously with the rotation of the header 2. It works in conjunction with a fixed pulley 6 to optimize the lever arm of power transmission, reducing the force required to drive the header 2. The movable pulley 7 is located outside the header 2, ensuring its movement trajectory matches the rotation trajectory of the header 2. This ensures the tension of the cable 11 acts directly on the header 2, improving the accuracy of power transmission. A fixed pulley 6 is rotatably connected to the outside of the frame 3. The fixed pulley 6 serves as a fixed fulcrum of the transmission structure, changing the direction of the tension of the cable 11, allowing the power of the cable 11 to be transmitted from the cab direction to... At the cutting platform 2, a cable 11 is wound between the movable pulley 7 and the fixed pulley 6. The cable 11 serves as a flexible transmission component, connecting the movable pulley 7 and the fixed pulley 6, and transmitting the externally input power from the fixed pulley 6 to the movable pulley 7, thus achieving long-distance force transmission. The cable 11 is tensioned and fitted within the grooves of the two pulleys to ensure the force transmission, ensuring the fit between the cable 11 and the pulley grooves, preventing the cable 11 from disengaging from the grooves or slipping during transmission, and ensuring the continuity and stability of power transmission. A fixed seat 8 is provided inside the cab of the combined machine 1. The fixed seat 8 serves as the mounting support structure for the tie rod 9, limiting the rotation axis of the tie rod 9, providing a stable mounting base for the tie rod 9, and ensuring the structural stability of the tie rod 9 during operation.

[0021] Example 2: A pull rod 9 is rotatably connected inside the fixed base 8. The pull rod 9 allows the operator to manually apply force, and its rotation drives the extension and retraction of the cable 11, thus achieving manual control of the cutting table 2. One end of the cable 11, near the fixed base 8, is located outside the pull rod 9, allowing the rotation of the pull rod 9 to be directly converted into the extension and retraction of the cable 11, shortening the transmission link between the operation and power output and improving the operation response speed. The other end is located outside the movable pulley 7, allowing the extension and retraction of the cable 11 to directly drive the movable pulley 7 to move, transmitting the operating force of the pull rod 9 to the cutting table 2, realizing the conversion of operation commands into execution actions. The cab wall of the combined machine 1 is provided with an L-shaped steel plate 10. The L-shaped steel plate 10 uses its structural shape to disperse the force transmitted by the fixed base 8, enhancing the connection reliability between the fixed base 8 and the cab wall, and avoiding loosening of the connection due to long-term operation. The cable 11 passes through the cab of the combined machine 1 and through the L-shaped steel plate 10, allowing the cable 11 to extend from the cab to the outside of the cutting table. In area 3, the power transmission path is connected, and the L-shaped steel plate 10 limits the cable 11, preventing it from swaying freely inside the cab. U-shaped blocks 15 are installed on both sides of the cutting platform 2, embedded in the U-shaped grooves 12 of the frame 3, providing support for the rotation of the cutting platform 2 and bearing its operating load. The U-shaped grooves 12 on both sides of the frame 3 serve as the space for the U-shaped blocks 15, limiting their rotation range and providing support for the cutting platform 2. The flipping action provides a guide trajectory and also provides a mounting cavity for the spring 13 and the positioning pin 14. The spring 13 is installed inside the U-shaped groove 12. The spring 13 stores elastic potential energy through its own elastic deformation, providing a continuous thrust to the positioning pin 14, so that the positioning pin 14 maintains the tendency to move towards the U-shaped block 15. The positioning pin 14 is slidably connected inside the U-shaped groove 12. By embedding the corresponding structure of the U-shaped block 15, the rotation of the U-shaped block 15 in the U-shaped groove 12 is restricted, thereby fixing the working angle of the cutting table 2.

[0022] Example 3: Please refer to Figure 2 , Figure 6 , Figure 7This utility model provides a technical solution: A spring 13 is disposed outside the positioning pin 14, allowing the elastic force of the spring 13 to act evenly on the positioning pin 14, pushing the positioning pin 14 to slide stably along the axial direction of the U-shaped groove 12, ensuring the smoothness of the positioning pin 14's movement. The U-shaped block 15 engages with the U-shaped groove 12, realizing a detachable connection between the cutting table 2 and the frame 3, ensuring the structural stability of the cutting table 2 during rotation and facilitating future maintenance and replacement of the cutting table 2 or the frame 3. The positioning pin 14 is slidably connected inside the U-shaped block 15 and engages with the U-shaped block 15 through the elastic force of the spring 13, allowing the positioning pin 14 to extend and retract within the U-shaped block 15. When the cutting table 2 is rotated to the target angle, the spring 13 pushes the positioning pin 14 into the groove of the U-shaped block 15, locking the position of the cutting table 2. When a mode switching is required, external force drives the positioning pin. 14. Exit the slot and unlock. The guide assembly 5 includes two adapters 17. The adapters 17 serve as the connecting transition components between the linkage rod 18 and the platform 3, connecting the power transmission between the linkage rod 18 and the platform 3, and compensating for the angular deviation during component installation. The adapters 17 are located on the outside of the platform 3, enabling the adapters 17 to receive the power at the platform 3 and transmit the power to the linkage rod 18, thus establishing the power transmission node from the platform 3 to the guide assembly 5. Hinges 16 are provided on both sides of the outside of the platform 3. The hinges 16 serve as the rotation support components of the guide assembly 5, limiting the rotation axis of the guide assembly 5 and providing a stable fulcrum for the angle adjustment of the guide assembly 5. The guide assembly 5 is rotatably connected inside the hinges 16, allowing the guide assembly 5 to rotate around the axis of the hinges 16, thereby adjusting its own angle and spacing to adapt to the introduction requirements of different crops.

[0023] Example 4: A linkage rod 18 is provided on the top of the test stand 3. The linkage rod 18 transmits the power from the adapter 17 to the guide components 5 on both sides, realizing the synchronous movement of multiple guide components 5. One end of the linkage rod 18 away from the guide components 5 is located outside the adapter 17, so that the power of the adapter 17 can be directly transmitted to the linkage rod 18, ensuring efficient power transmission from the test stand 3 to the linkage rod 18 and reducing power loss. The other end is located outside the guide components 5, so that the movement of the linkage rod 18 can directly drive the guide components 5 to rotate, converting the power transmission into the angle adjustment movement of the guide components 5, realizing the final output of power, so as to realize the power linkage between the adapter 17 and the guide components 5, ensuring that the movement of the adapter 17 can be synchronously transmitted to the guide components 5, so that the guide components... The angle adjustment of component 5 is coordinated with the mode switching of header 2 to ensure consistency of operation. The guide component 5 has a plate-like structure, which increases the contact area with the crop, so that the crop can gather more neatly towards header 2. It is set on both sides of the feed end of header 2, forming guide boundaries on both sides of the feed area of ​​header 2 to prevent the crop from leaking out from both sides of header 2. The guide component 5 adjusts the distance between itself and header 2 by rotating around the hinge seat 16, and adjusts the width of the guide channel according to the morphological characteristics of the crop to adapt to the different plant sizes of wheat and corn, ensuring that the crop can enter header 2 smoothly. It adapts to the width of the guide channel for different crops, forming a narrower channel when harvesting wheat to avoid the dispersion of fine straw, and forming a wider channel when harvesting corn to accommodate the robust corn plants.

[0024] Based on the above embodiments, the following is the complete working principle of the above embodiments: Through the pull rod 9 inside the fixed seat 8 in the driver's cab, the rotation of the pull rod 9 drives the extension and retraction of the cable 11 that passes through the cab and the L-shaped steel plate 10. The cable 11 is tensioned and fitted into the grooves of the fixed pulley 6 outside the frame 3 and the movable pulley 7 outside the cutting table 2. The fixed pulley 6 changes the direction of the pulling force, and the movable pulley 7 cooperates to form a force-saving transmission structure, transmitting the force to the linkage adjustment component 4 to drive its action. The cutting table 2 is connected via U-shaped blocks 15 on both sides... The U-shaped groove 12 of the frame 3 rotates to achieve flipping. The spring 13 in the U-shaped groove 12 pushes the positioning pin 14 to slide and engage with the U-shaped block 15 to lock the corn or wheat harvesting mode position of the cutter 2. At the same time, the adapter 17 on the outside of the frame 3 transmits power to the guide component 5 in the hinge seat 16 on both sides through the linkage rod 18. The guide component 5 rotates around the hinge seat 16 to adjust the distance between itself and the cutter 2, adapting to the width of the feed channel of the corresponding crop, and completing the mode switching and operation of the corn and wheat combined operation machine.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0026] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A corn-wheat combined harvester, comprising a combined harvester (1), characterized in that: The combined machine (1) is provided with a frame (3) on the outside, and a cutting platform (2) is rotatably connected inside the frame (3). A linkage adjustment component (4) is provided on the top of the cutting platform (2). The linkage adjustment component (4) is used to drive the cutting platform (2) to rotate to switch between corn and wheat harvesting modes. Guide components (5) are rotatably connected on both sides of the frame (3). The guide components (5) switch the guiding state synchronously with the rotation of the cutting platform (2) to adapt to the harvesting of the corresponding crops.

2. The corn-wheat combined harvester according to claim 1, characterized in that: The linkage adjustment component (4) includes a movable pulley (7), which is located outside the cutting table (2). A fixed pulley (6) is rotatably connected to the outside of the frame (3). A cable (11) is wound between the movable pulley (7) and the fixed pulley (6). The cable (11) is tensioned and fitted in the groove of the two pulleys to realize the transmission of force. A fixed seat (8) is provided inside the cab of the combined machine (1).

3. The corn-wheat combined harvester according to claim 2, characterized in that: The fixed seat (8) is rotatably connected to a pull rod (9). One end of the cable (11) near the fixed seat (8) is located outside the pull rod (9), and the other end is located outside the movable pulley (7). The cab wall of the combined machine (1) is provided with an L-shaped steel plate (10). The cable (11) passes through the cab of the combined machine (1) and through the L-shaped steel plate (10).

4. The corn-wheat combined harvester according to claim 2, characterized in that: Both sides of the cutting table (2) are provided with U-shaped blocks (15), and both sides of the frame (3) are provided with U-shaped grooves (12). A spring (13) is provided inside the U-shaped groove (12), and a positioning pin (14) is slidably connected inside the U-shaped groove (12).

5. The corn-wheat combined harvester according to claim 4, characterized in that: The spring (13) is disposed outside the positioning pin (14), the U-shaped block (15) engages with the U-shaped groove (12), the positioning pin (14) is slidably connected inside the U-shaped block (15) and engages with the U-shaped block (15) by the elastic force of the spring (13).

6. The corn-wheat combined harvester according to claim 1, characterized in that: The guide assembly (5) includes two adapters (17), which are located outside the frame (3). The frame (3) has hinge seats (16) on both sides of its exterior. The guide assembly (5) is rotatably connected inside the hinge seats (16).

7. The corn-wheat combined harvester according to claim 6, characterized in that: The top of the platform (3) is provided with a linkage rod (18). One end of the linkage rod (18) away from the guide component (5) is located outside the adapter (17), and the other end is located outside the guide component (5) to realize the power linkage between the adapter (17) and the guide component (5).

8. The corn-wheat combined harvester according to claim 7, characterized in that: The guide component (5) has a plate-like structure and is correspondingly arranged on both sides of the feed end of the cutter (2). The guide component (5) adjusts the distance between itself and the cutter (2) by rotating around the hinge seat (16) to adapt to the width of the feed channel for different crops.

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