A header and harvester

Abstract

The utility model provides a cutting platform and harvester, wherein the cutting platform includes at least two pairs of ear picking units arranged side by side along the width direction of the cutting platform for ear picking, the ear picking unit includes a first ear picking table, a second ear picking table, an adjusting device and a driving device; the adjusting device is used for adjusting the passing gap of straw between the first ear picking roller and the second ear picking roller, and the adjusting device includes a first adjusting assembly fixed with the first ear picking table to drive the first ear picking table to move left, and a second adjusting assembly fixed with the second ear picking table to drive the second ear picking table to move right; the driving device drives the first adjusting assembly and the second adjusting assembly to realize synchronous adjustment. The cutting platform and the harvester provided by the utility model can synchronously drive the adjusting device to adjust the first ear picking table and the second ear picking table respectively, the passing gap of straw between the first ear picking table and the second ear picking table is adjusted, crops in different regions are adapted, the adjusting structure is simple, and the working efficiency of the harvester can be improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a header and harvester. Background Technology

[0002] During corn harvesting, the header separates the ears from the stalks. The conventional method involves a cutter at the front of the header cutting the stalks, followed by a pulling action by the ear-picking unit on the header. However, due to differences in corn varieties and growing conditions, the diameter of corn stalks varies considerably. This can easily cause the header to jam during harvesting, with stalks becoming stuck in the ear-picking unit, hindering the picking progress. Therefore, it's necessary to adjust the gap between the ear-picking units according to the corn's growth to allow the stalks to pass smoothly between the pull rollers. The conventional method involves the operator manually adjusting the gap between the ear-picking units before harvesting. This method is time-consuming and labor-intensive, and if jamming occurs again during subsequent harvesting, the machine must be stopped to clear the blockage, severely impacting the harvesting progress. Utility Model Content

[0003] The purpose of this invention is to provide a header and harvester with an anti-clogging function, simple operation, high reliability, and the ability to eliminate blockage of the header picking unit through one-button operation, thereby improving harvesting efficiency.

[0004] According to one aspect of the present invention, a cutting platform is provided, comprising at least two pairs of picking units arranged side by side along the width direction of the cutting platform for picking ears of straw. Each picking unit includes a first picking platform, a second picking platform, an adjustment device, and a driving device. With the cutting platform's operating direction as forward, the first picking platform is located on the left side of the picking unit. The first picking platform includes a first picking roller and a first picking plate and a first picking frame corresponding to the first picking roller, with the first picking plate mounted on the first picking frame. The second picking platform is located on the right side of the picking unit. The second picking platform includes a second picking roller and a second picking plate and a second picking frame corresponding to the second picking roller, with the second picking plate mounted on the second picking frame. The adjustment device is used to adjust the straw passage gap between the first picking roller and the second picking roller. The adjustment device includes a first adjustment component fixed to the first picking platform for driving the first picking platform to move to the left, and a second adjustment component fixed to the second picking platform for driving the second picking platform to move to the right. The driving device drives the first adjustment component and the second adjustment component to achieve synchronous adjustment.

[0005] By driving the adjustment device on the cutting platform, the picking unit can be operated synchronously on both sides. Adjusting the gap between the first and second picking platforms can improve work efficiency, reduce the need to adapt to different straw diameters in different regions, and avoid blockage during the picking process.

[0006] Furthermore, the first adjustment assembly includes a first pull rod, a first limiting screw, a first connecting rod, and a second pull rod; the first pull rod is fixed to the first ear-picking plate, one end of the first pull rod is fixed to the ear plate of the first ear-picking plate, and the other end of the first pull rod is connected to the driving device through the first limiting screw; the first connecting rod is arranged parallel to the first ear-picking plate along the length direction of the cutting table, one end of the first connecting rod is connected to the first pull rod, the other end of the first connecting rod is rotatably connected to one end of the second pull rod, and the other end of the second pull rod is fixed to the ear plate of the first ear-picking plate.

[0007] Furthermore, the second adjustment assembly includes a third pull rod, a second limiting screw, a second limiting rod, a first rotating support arm, a second connecting rod, a second rotating support arm, and a fourth pull rod. The third pull rod is connected to the second limiting screw and the second limiting rod. One end of the third pull rod is connected to the second limiting screw, and the other end is connected to the second limiting rod. The first rotating support arm rotates around the second limiting rod as a pivot. One end of the first rotating support arm is connected to the ear plate of the second ear-picking plate, and the other end is connected to the second connecting rod. The other end of the second connecting rod is connected to the second rotating support arm. The second rotating support arm rotates around the fourth pull rod as a pivot. The second rotating support arm is fixed to the ear plate of the second ear-picking plate, thereby driving the second ear-picking plate to move.

[0008] With the setting of the second limiting screw, the first rotating support arm and the second rotating support arm, the second adjustment component structure is stable during the adjustment of the second ear-picking plate. By translating the second ear-picking plate, the reliability of the second ear-picking platform structure is ensured.

[0009] Furthermore, the first rotating arm and the second rotating arm have the same structure. The first rotating arm includes a first connecting plate and a second connecting plate that are connected to each other. The first connecting plate and the second connecting plate rotate around the second limiting rod.

[0010] Furthermore, the third pull rod is provided with a fork at each end and is connected to the first rotating support arm and the second rotating support arm respectively. The fork is fixed to the second connecting rod by bolts.

[0011] Furthermore, the first ear-picking frame is also provided with a first auxiliary mounting seat, which is located at both ends of the first connecting rod and is used to support the first connecting rod; the second ear-picking frame is provided with a second auxiliary mounting seat, and the second limiting rod and the fourth pull rod pass through the second auxiliary mounting seat, which is used to support the second limiting rod and the fourth pull rod.

[0012] Furthermore, two adjacent picking units are connected by a connecting bracket.

[0013] Furthermore, reinforced supports are installed on the first ear-picking platform near the left side of the header frame and the second ear-picking platform near the right side of the header frame.

[0014] Preferably, the driving device includes a driving rod connected to the first limiting screw and the second limiting screw, and a driver for driving the driving rod to translate along the width direction of the cutting table; the driver is electrically connected to the information acquisition device; after the information acquisition device acquires the ear-picking information of the ear-picking unit, it transmits it to the controller; the controller determines the working status of the ear-picking unit; and according to the working status of the ear-picking unit, the controller sends a command to the driver to drive the adjusting device to adjust the straw passage gap between the first ear-picking roller and the second ear-picking roller.

[0015] An information collection device is installed, and the information collection device and controller are electrically connected. The status of the cutting platform can be judged based on the real-time harvesting situation. The controller can be used to adjust the gap between the first and second picking platforms with one button. The operation is simple and highly intelligent.

[0016] The header provided in this embodiment uses a drive device to drive the first and second adjustment components to achieve synchronous translation of the first and second picking platforms in the picking unit, quickly adjusting the straw passage gap. The drive device can synchronously adjust the straw passage gap of the entire header picking unit, with fast response speed and high reliability, significantly reducing the frequency of header blockage and improving the reliability of the header during operation.

[0017] The embodiment also provides a harvester, including the header described in any of the above embodiments. This harvester has high ear-picking efficiency and can adjust the distance between the first ear-picking plate and the second ear-picking plate through one-button control, ensuring the passage of straw, reducing the adjustment time of the ear-picking plate during transfer, and improving the working efficiency of the harvester. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1A schematic diagram of a cutting platform structure provided for an embodiment of this utility model.

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image.

[0021] Figure 3 Schematic diagram of the ear-picking unit structure provided for embodiments of this utility model Figure 1 .

[0022] Figure 4 Schematic diagram of the ear-picking unit structure provided for embodiments of this utility model Figure 2 .

[0023] Figure 5 Schematic diagram of the ear-picking unit structure provided for embodiments of this utility model Figure 3 .

[0024] Figure 6 Schematic diagram of the ear-picking unit structure provided for embodiments of this utility model Figure 4 .

[0025] Figure 7 Schematic diagram of the ear-picking unit structure provided for embodiments of this utility model Figure 5 .

[0026] Figure 8 A schematic diagram of the drive control of the ear-picking unit provided for an embodiment of this utility model.

[0027] Explanation of icon numbers:

[0028] 200-Cutting platform; 100-Picking unit; 1-First picking platform; 11-First picking roller; 12-First picking plate; 13-First picking frame; 131-First auxiliary mounting base; 2-Second picking platform; 21-Second picking roller; 22-Second picking plate; 23-Second picking frame; 231-Second auxiliary mounting base; 3-Adjusting device; 31-First adjusting component; 311-First pull rod; 312-First limiting screw; 313-First connecting rod; 314-Second pull rod 32-Second adjusting assembly; 321-Third pull rod; 322-Second limiting screw; 323-Second limiting rod; 324-First rotating support arm; 3241-First connecting plate; 3242-Second connecting plate; 325-Second connecting rod; 325a-Shift fork; 326-Second rotating support arm; 327-Fourth pull rod; 4-Drive device; 41-Drive rod; 42-Driver; 51-Connecting bracket; 52-Reinforcing bracket; 6-Information acquisition device; 7-Controller. Detailed Implementation

[0029] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0031] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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 utility model based on the specific circumstances.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0035] See Figure 1 , Figure 2 , Figure 3The present invention provides a header that can quickly adjust the ear-picking gap, significantly improving harvesting efficiency. At least two pairs of ear-picking units are arranged side-by-side along the width of the header for picking corn ears. Each ear-picking unit includes a first ear-picking platform 1 and a second ear-picking platform 2. Corn stalks pass through the gap between the first ear-picking platform 1 and the second ear-picking platform 2, and the corn ears are picked off and transported to the rear end of the harvester for processing. To prevent the gap from becoming clogged due to excessive stalk diameter when the stalks pass through, an adjustment device 3 is provided to adjust the gap between the first ear-picking platform 1 and the second ear-picking platform 2. With the cutting platform's operating direction as the front, the first ear-picking platform 1 is located on the left side of the ear-picking unit. The first ear-picking platform 1 includes a first ear-picking roller 11 and a first ear-picking plate 12 and a first ear-picking frame 13, which are arranged corresponding to the first ear-picking roller 11. The first ear-picking plate 12 is mounted on the first ear-picking frame 13, and the first ear-picking roller 11 is connected to the first ear-picking frame 13. The second ear-picking platform 2 is located on the right side of the ear-picking unit. The second ear-picking platform 2 includes a second ear-picking roller 21 and a second ear-picking plate 22 and a second ear-picking frame 23, which are arranged corresponding to the second ear-picking roller 21. The second ear-picking plate 22 is mounted on the second ear-picking frame 23. The adjusting device 3 adjusts the first ear-picking plate 12 and the second ear-picking plate 22 to increase the gap between the first ear-picking platform 1 and the second ear-picking platform 2, so as to avoid blockage caused by excessively large corn stalk diameter. The first adjustment component 31 is fixed on the first picking platform 1, and the first picking plate 12 is adjusted through the first adjustment component 31, which moves the first picking platform 1 to the left. The second adjustment component 32 is fixed on the second picking platform 2, and the second picking plate 22 is adjusted through the second adjustment component 32, which moves the second picking platform 2 to the right. The driving device 4 simultaneously drives the first adjustment component 31 and the second adjustment component 32 to move the first picking platform 1 to the left and the second picking platform 2 to the right, thereby increasing the gap for straw passage. At the same time, the driving device 4 can also simultaneously drive the first picking platform 1 to the right and the second picking platform 2 to the left, thereby decreasing the gap for straw passage through the left and right sides. When the drive device 4 drives the adjustment device 3 to adjust the gap between the first ear-picking platform 1 and the second ear-picking platform 2, the operation is simple, which can save the adjustment time between the first ear-picking platform 1 and the second ear-picking platform 2 and improve the harvesting efficiency. Both sides of the ear-picking unit can be adjusted by the adjustment device 3, and the structure is reliable.

[0036] See Figures 4 to 7In a specific embodiment, the first adjustment component 31 includes a first pull rod 311, a first limiting screw 312, a first connecting rod 313, and a second pull rod 314. The first pull rod 311 is fixed to the first ear-picking plate 12, with one end fixed to the ear plate of the first ear-picking plate 12. The other end of the first pull rod 311 is connected to the driving device 4 via the first limiting screw 312, which passes through the driving device 4. The first pull rod 311 passes through the first limiting screw 312 and is connected to the first ear-picking plate 12 after passing through the first ear-picking frame 13. The first connecting rod 313 is parallel to the first ear-picking plate 12 along the length of the cutting platform. One end of the first connecting rod 313 is connected to the first pull rod 311, and the other end is connected to one end of the second pull rod 314. The other end of the second pull rod 314 is fixed to the ear plate of the first ear-picking plate 12. By setting the first pull rod 311, the first limiting screw 312, the first connecting rod 313, and the second pull rod 314, the first ear-picking plate 12 can be moved horizontally along the width direction of the cutting table. The first limiting screw 312 converts the lateral pulling force of the driving device 4 into the vertical driving force of the cutting table, thereby reducing the time for manual adjustment of the ear-picking plate.

[0037] The second adjustment assembly 32 includes a third pull rod 321, a second limiting screw 322, a second limiting rod 323, a first rotating support arm 324, a second connecting rod 325, a second rotating support arm 326, and a fourth pull rod 327. In this embodiment, the third pull rod 321 is connected to the second limiting screw 322 and the second limiting rod 323. The second ear-picking plate 22 is arranged parallel to the third pull rod 321. The second limiting screw 322 passes through the drive device 4. One end of the third pull rod 321 is sleeved on the second limiting screw 322, and the other end of the third pull rod 321 is connected to the second limiting rod 323. The top of the second limiting rod 323 is also provided with a first rotating support arm 324, and the first rotating arm rotates around the second limiting rod 323 as the pivot. One end of the first rotating support arm 324 is connected to the ear plate of the second ear-picking frame 23, and the other end is connected to the second connecting rod 325. The other end of the second connecting rod 325 is connected to the second rotating support arm 326. The fourth pull rod 327 is arranged parallel to the second limiting rod 323. The second rotating support arm rotates around the fourth pull rod 327 as the pivot. The other end of the second rotating support arm 326 is connected to the ear plate of the second ear-picking plate 22. The first rotating support arm 324 and the second rotating support arm 326 have the same structure. Taking the structure of the first rotating support arm 324 as an example, the first rotating support arm 324 includes a first connecting plate 3241 and a second connecting plate 3242 connected to each other. The second connecting plate 3241 and the second connecting plate 3242 rotate around the second limiting rod 323. The first connecting plate 3241 and the second connecting plate 3242 are integrally formed, and the first connecting plate 3241 and the second connecting plate 3242 are bent in the plane to form an included angle. During the rotation of the first rotating support arm 324 around the second limiting rod 323, the first connecting plate 3241 pulls the second picking plate 22, and the second connecting plate 3242 simultaneously drives the second connecting rod 325, thereby driving the second rotating support arm 326 to rotate around the fourth pull rod 327. During the process of the drive device 4 driving the second limit screw 322 to move, the first rotating support arm 324 and the second rotating support arm 326 move synchronously to drive the second ear-picking plate 22 to move horizontally along the width direction of the header, thereby forming an enlarged or reduced gap between the first ear-picking plate 12 and the second ear-picking plate 22, so as to facilitate the passage of corn stalks.

[0038] By setting a second limiting screw 322, a second limiting rod 323, a first rotating support arm 324, and a second rotating support arm 326, when the driving device 4 drives the second limiting screw 322 to move, the second limiting rod 323, the second rotating support arm 326, the second connecting rod 325, the third pull rod 321, and the fourth pull rod 327 cooperate with each other to synchronously realize the second ear-picking plate 22 moving left or right along the width direction of the header. During the adjustment of the second ear-picking plate 22, the structure of the second adjusting component 32 is stable, and the connection between it and the second ear-picking plate 22 is reliable. The second ear-picking plate 22 and the first ear-picking plate 12 can move synchronously to realize the gap adjustment between the first ear-picking platform 1 and the second ear-picking platform 2, thereby reducing the adjustment and adaptation time during the harvesting process and improving the work efficiency.

[0039] In an optional embodiment, the two ends of the second connecting rod 325 are respectively provided with a fork 325a, and are connected to the first rotating support arm 324 and the second rotating support arm 326 through the fork 325a. The first rotating support arm 324 and the second rotating support arm 326 are respectively embedded in the fork 325a. At the same time, the second rotating support arm 326 and the third rotating support arm are respectively movably connected to the fork 325a and fixed by bolts. In this way, the torque of the second adjusting component 32 during the adjustment of the second ear-picking plate 22 can be reduced, and the force can be released when the corn stalk is stuck in the ear-picking unit to avoid damage to the ear-picking unit.

[0040] See Figure 3 , Figure 6 For the first ear-picking frame 13 and the second ear-picking frame 23, the first ear-picking frame 13 is also provided with a first auxiliary mounting seat 131. The first auxiliary mounting seat 131 is located at both ends of the first connecting rod 313 and is used to support the first connecting rod 313, thereby ensuring the linkage effect of the first adjusting component 31. The second ear-picking frame 23 is provided with a second auxiliary mounting seat 231. The second limiting rod 323 and the fourth pull rod 327 pass through the second auxiliary mounting seat 231. The second auxiliary mounting seat 231 is used to fix the position of the second limiting rod 323 and the fourth pull rod 327. In the process of supporting the second limiting rod 323 and the fourth pull rod 327, it also restricts the movement position of the second limiting rod 323 and the fourth pull rod 327, thereby ensuring the rotation axis of the first rotating support arm 324 and the second rotating support arm 326, thereby increasing the transmission reliability of the second adjusting component 32.

[0041] To enhance the operational efficiency of the header during corn harvesting and extend the service life of the adjustment device 3, a connecting bracket 51 is installed between two adjacent ear-picking units on the header, connecting the ear-picking units in series. This ensures that the ear-picking units maintain a stable working surface both in front of and behind the header. Additionally, reinforcing brackets 52 are installed on the first ear-picking platform 1 (near the left side of the header frame) and the second ear-picking platform 2 (near the right side of the header frame), further ensuring the ear-picking units are more stable and reliable during operation.

[0042] In this embodiment, the driving device 4 is equipped with a driving rod 41 connected to the first limiting screw 312 and the second limiting screw 322. The driver 42 drives the driving rod 41 to translate along the width direction of the cutting platform, thereby adjusting the gap between the first ear-picking platform 1 and the second ear-picking platform 2. (See also...) Figure 8 The header is also equipped with an information acquisition device 6, which is electrically connected to the driver 42. After acquiring the ear-picking information from the ear-picking unit, the information acquisition device 6 transmits the acquired signal to the controller 7. The controller 7 then sends a command to the driver 42, driving the adjustment device 3 to adjust the distance between the first ear-picking roller 11 and the second ear-picking roller 21. That is, by adjusting the interval between the first ear-picking plate 12 and the second ear-picking plate 22, the gap between the first ear-picking roller 11 and the second ear-picking roller 21 can be adjusted, thereby adapting to corn stalks of different diameters and preventing header blockage. In this operating mode, the drive device can synchronously adjust the stalk passage gap of the entire header's ear-picking unit, with fast response speed and high reliability. It can achieve adjustment on both sides of the first ear-picking platform 1 and the second ear-picking platform 2, reducing header damage caused by the adjustment process. It can significantly reduce the adjustment time of the ear-picking plate during transfer, reduce the frequency of header blockage, and improve the reliability of the header during operation.

[0043] The harvester using the header of this embodiment is highly intelligent and can quickly adjust the gap between the straws in the ear-picking units through one-button operation, which can adapt to the straw diameter in different regions and improve the operation speed.

[0044] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A cutting platform, characterized in that, The device includes at least two pairs of ear-picking units arranged side by side along the width of the cutting platform for ear picking, wherein the ear-picking unit includes: The first ear-picking platform, with the cutting platform operation direction as the front, is located on the left side of the ear-picking unit. The first ear-picking platform includes a first ear-picking roller and a first ear-picking plate and a first ear-picking frame corresponding to the first ear-picking roller. The first ear-picking plate is located on the first ear-picking frame. The second ear-picking platform is located on the right side of the ear-picking unit. The second ear-picking platform includes a second ear-picking roller, a second ear-picking plate, and a second ear-picking frame, which are arranged corresponding to the second ear-picking roller. The second ear-picking plate is arranged on the second ear-picking frame. An adjusting device is used to adjust the passage gap of straw between the first picking roller and the second picking roller. The adjusting device includes a first adjusting component fixed to the first picking platform for driving the first picking platform to move to the left, and a second adjusting component fixed to the second picking platform for driving the second picking platform to move to the right. A driving device that drives the first adjustment component and the second adjustment component to achieve synchronous adjustment.

2. A cutting platform as described in claim 1, characterized in that, The first adjustment assembly includes a first pull rod, a first limiting screw, a first connecting rod, and a second pull rod; the first pull rod is fixed to the first ear-picking plate, one end of the first pull rod is fixed to the ear plate of the first ear-picking plate, and the other end of the first pull rod is connected to the driving device through the first limiting screw; the first connecting rod is arranged parallel to the first ear-picking plate along the length direction of the cutting table, one end of the first connecting rod is connected to the first pull rod, the other end of the first connecting rod is rotatably connected to one end of the second pull rod, and the other end of the second pull rod is fixed to the ear plate of the first ear-picking plate.

3. A cutting platform as described in claim 2, characterized in that, The second adjustment assembly includes a third pull rod, a second limiting screw, a second limiting rod, a first rotating support arm, a second connecting rod, a second rotating support arm, and a fourth pull rod. The third pull rod is connected to the second limiting screw and the second limiting rod. One end of the third pull rod is connected to the second limiting screw, and the other end is connected to the second limiting rod. The first rotating support arm rotates around the second limiting rod as a pivot. One end of the first rotating support arm is connected to the ear plate of the second ear-picking plate, and the other end is connected to the second connecting rod. The other end of the second connecting rod is connected to the second rotating support arm. The second rotating support arm rotates around the fourth pull rod as a pivot. The second rotating support arm is fixed to the ear plate of the second ear-picking plate, thereby driving the second ear-picking plate to move.

4. A cutting platform as described in claim 3, characterized in that, The first rotating arm and the second rotating arm have the same structure. The first rotating arm includes a first connecting plate and a second connecting plate that are connected to each other. The first connecting plate and the second connecting plate rotate around the second limiting rod.

5. A cutting platform as described in claim 4, characterized in that, The second connecting rod has a fork at each end and is connected to the first rotating arm and the second rotating arm respectively. The fork is fixed to the second connecting rod by bolts.

6. A cutting platform as described in claim 5, characterized in that, The first ear-picking frame is also provided with a first auxiliary mounting seat, which is located at both ends of the first connecting rod and is used to support the first connecting rod; the second ear-picking frame is provided with a second auxiliary mounting seat, and the second limiting rod and the fourth pull rod are inserted into the second auxiliary mounting seat, which is used to support the second limiting rod and the fourth pull rod.

7. A cutting platform as described in claim 6, characterized in that, The two adjacent picking units are connected by a connecting bracket.

8. A cutting platform as described in claim 7, characterized in that, The first ear-picking platform near the left side of the header frame and the second ear-picking platform near the right side of the header frame are also equipped with reinforced supports.

9. A cutting platform as described in claim 8, characterized in that, The driving device includes a driving rod connected to the first limiting screw and the second limiting screw, and a driver that drives the driving rod to translate along the width direction of the cutting table; the driver is electrically connected to the information acquisition device; after the information acquisition device acquires the ear-picking information of the ear-picking unit, it transmits it to the controller; the controller determines the working status of the ear-picking unit; and according to the working status of the ear-picking unit, the controller sends a command to the driver to drive the adjusting device to adjust the straw passage gap between the first ear-picking roller and the second ear-picking roller.

10. A harvester, characterized in that, Includes the cutting platform as described in any one of claims 1-9.

Images