Header and harvester

Abstract

The utility model relates to the field of harvesters, in particular to a header and a harvester, which comprise a hook plate, an adjusting pull rod and a hook plate connecting plate which are hinged in sequence, a hooking part is arranged on the upper portion of the front end of the header hooking frame, the header body is hooked to the hooking part, the lower portion of the front end of the header hooking frame is hinged to the hook plate, and the hook plate connecting plate is hinged to the upper end of the middle of the header hooking frame; the rear end of the header oil cylinder is hinged to a harvester rack, the front end of the header oil cylinder is hinged to the lower portion of the front end of the header hooking frame, an installation opening is formed in the rear end of the header hooking frame, and the installation opening is used for being hinged to the harvester rack. The header can be quickly disassembled and assembled, so that the header is convenient to maintain and transport.

Description

Technical Field

[0001] This utility model relates to the field of harvesters, and more specifically, to a header and a harvester. Background Technology

[0002] With the continuous advancement of agricultural mechanization both domestically and internationally, corn harvesters are rapidly developing towards larger scale, multi-functionality, intelligence, and high efficiency to better meet the needs of large-scale corn harvesting in farmland. These machines are typically equipped with advanced sensors, control systems, and automation technology, enabling them to efficiently complete corn harvesting tasks in various complex environments. Large corn harvesters can complete multiple operations such as header cutting, threshing, cleaning, and loading in a single operation, greatly improving work efficiency and reducing labor costs. However, the excessive pursuit of larger equipment has also brought a series of problems. For example, the increased height, width, and length of the equipment, especially the ultra-wide header design, not only hinders header maintenance but also leads to transportation difficulties and reduced flexibility during field operations and relocation. These problems not only increase the user's operational difficulty and maintenance costs but may also limit the equipment's applicability in certain specific environments. Utility Model Content

[0003] The purpose of this utility model is to provide a cutting table that can be quickly disassembled and assembled, thereby facilitating maintenance and transportation.

[0004] Another objective of this invention is to provide a harvester that allows for quick assembly and disassembly of the header, thereby facilitating maintenance and transportation.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A cutting platform, comprising:

[0007] header body;

[0008] The quick-release mechanism includes a hook plate, an adjusting rod, and a hook plate connecting plate that are hinged together in sequence.

[0009] A cutting table mounting bracket has a mounting part at the upper front end of the mounting bracket, the cutting table body is mounted on the mounting part, the lower front end of the mounting bracket is hinged to the hook plate, and the hook plate connecting plate is hinged to the upper middle part of the mounting bracket.

[0010] The header cylinder has its rear end hinged to the harvester frame and its front end hinged to the lower front end of the header mounting bracket. The header mounting bracket has an installation port at its rear end for hinged connection to the harvester frame.

[0011] Furthermore, it also includes a safety catch for the cutting table cylinder, the safety catch comprising a safety catch plate, a safety catch connecting rod, and a safety catch connecting plate that are hinged together in sequence;

[0012] The security card also includes a security card adjustment plate, one end of which is hinged to the middle of the security card connecting plate;

[0013] The free end of the safety card plate is hinged to the lower front end of the cutting table mounting bracket, the safety card adjustment plate is hinged to the lower middle part of the cutting table mounting bracket, and the free end of the safety card connecting plate is hinged to the lower rear end of the cutting table mounting bracket.

[0014] Furthermore, a first hinge hole is provided in the middle of the hook plate, and a second hinge hole is provided at the lower front end of the cutting table mounting bracket. The first hinge hole and the second hinge hole are used to install a pin assembly.

[0015] Furthermore, a third hinge hole is provided at the free end of the hook plate connecting plate, and a fourth hinge hole is provided at the upper middle part of the cutting table hanging frame. The third hinge hole and the fourth hinge hole are used to install a pin assembly.

[0016] Furthermore, a fixing plate is provided at the upper middle part of the cutting table mounting bracket, and a fifth hinge hole is provided on the fixing plate.

[0017] Furthermore, a cutting table shaft is provided at the lower rear end of the cutting table body, a sixth hinge hole is provided at the front end of the cutting table cylinder, and a seventh hinge hole is provided at the lower front end of the cutting table bracket, with the seventh hinge hole located in front of and below the second hinge hole. A pin assembly is installed in the cutting table shaft, the sixth hinge hole, and the seventh hinge hole.

[0018] Furthermore, the free end of the safety card plate is provided with an eighth hinge hole, the free end of the safety card connecting plate is provided with a ninth hinge hole, and the safety card adjusting plate is provided with at least two elongated holes along its length.

[0019] The lower middle part of the cutter head bracket has a tenth hinge hole, and the lower rear end of the cutter head bracket has an eleventh hinge hole.

[0020] A pin assembly is installed in the cutter shaft, the sixth hinge hole, the seventh hinge hole, and the eighth hinge hole. A pin assembly is installed in the tenth hinge hole and one of the elongated holes. A pin assembly is installed in the ninth hinge hole and the eleventh hinge hole.

[0021] Furthermore, a hinge plate is provided at the lower rear end of the cutting table mounting bracket, and the eleventh hinge hole is provided on the hinge plate.

[0022] Furthermore, the cutting platform body includes a cutting platform welded together, and an upper crossbeam is provided on the upper part of the cutting platform welded together. The cutting platform body is hung on the hanging part through the upper crossbeam.

[0023] A harvester includes a frame and a header, wherein a connecting part is provided at the front end of the frame, the connecting part is located in the mounting port and is hinged by a pin assembly.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] This application divides the header into multiple detachable modules, such as the header body, quick-change mechanism, header mounting bracket, and header cylinder. The modules are detachable, which facilitates the disassembly and assembly of the header, as well as the maintenance and replacement of parts, and thus facilitates transportation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the quick-disassembly mechanism of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the security card of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the cutting platform body of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the cutter head bracket of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the cutter body without attachment in this utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the cutting table cylinder of this utility model when it extends and engages with the cutting table body;

[0033] Figure 7 This is a schematic diagram of the structure of the cutting table cylinder after it extends and attaches to the cutting table body.

[0034] In the picture:

[0035] 1-Quick replacement mechanism; 101-Hook plate; 102-Adjusting rod; 103-Hook plate connecting plate; 104-First hinge hole; 105-Third hinge hole;

[0036] 2-Safety card; 201-Safety card plate; 202-Safety card connecting rod; 203-Safety card connecting plate; 204-Safety card adjusting plate; 205-Eighth hinge hole; 206-Elongated hole; 207-Ninth hinge hole;

[0037] 3-Cutter body; 301-Cutter welding; 302-Upper crossbeam; 303-Cutter shaft;

[0038] 4-Cutter mounting bracket; 401-Hanging part; 402-Fixing plate; 403-Second hinge hole; 404-Seventh hinge hole; 405-Tenth hinge hole; 406-Hinge plate; 407-Mounting port; 408-Fourth hinge hole; 409-Fifth hinge hole; 410-Eleventh hinge hole;

[0039] 5-Cutter cylinder; 6-Frame; 7-Drive front wheel. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0046] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0047] Example 1

[0048] Reference Figures 1-7 This embodiment provides a cutting platform, which includes:

[0049] The cutting platform body 3 includes a cutting platform weldment 301, and an upper crossbeam 302 is provided at the upper rear end of the cutting platform weldment 301, such as... Figure 3 As shown;

[0050] The quick-release mechanism 1 includes a hook plate 101, an adjusting rod 102, and a hook plate connecting plate 103, which are hinged sequentially. One end of the hook plate 101 is hinged to one end of the adjusting rod 102 via a pin assembly, and the other end of the adjusting rod 102 is hinged to one end of the hook plate connecting plate 103 via a pin assembly. Both the other ends of the hook plate 101 and the hook plate connecting plate 103 are free ends. Figure 1 As shown;

[0051] The cutting table mounting bracket 4 has a mounting part 401 at the upper front end. The cutting table body 3 is mounted on the mounting part 401 via the upper crossbeam 302. The lower front end of the cutting table mounting bracket 4 is hinged to the hook plate 101. The hook plate connecting plate 103 is hinged to the upper middle part of the cutting table mounting bracket 4.

[0052] The header cylinder 5 is hinged at its rear end to the harvester frame 6, and at its front end to the lower front end of the header mounting bracket 4. The header mounting bracket 4 has a mounting part at its rear end, and the mounting part has a mounting port 407 for hinged to the harvester frame 6.

[0053] The cutting table also includes a safety catch 2 for the cutting table cylinder 5. The safety catch 2 is a safety device for the cutting table cylinder 5, which can limit the return stroke of the piston rod of the cutting table cylinder 5 to prevent the cutting table from falling unexpectedly due to sudden failure of the hydraulic system, thereby ensuring the personal safety of maintenance personnel.

[0054] The safety card 2 includes a safety card plate 201, a safety card connecting rod 202, and a safety card connecting plate 203 that are hinged together in sequence. One end of the safety card plate 201 is hinged to one end of the safety card connecting rod 202 through a pin assembly, and the other end of the safety card connecting rod 202 is hinged to one end of the safety card connecting plate 203 through a pin assembly. The other ends of the safety card plate 201 and the other ends of the safety card connecting plate 203 are both free ends.

[0055] The security card 2 also includes a security card adjustment plate 204, one end of which is hinged to the middle of the security card connecting plate 203;

[0056] Among them, the free end of the safety card plate 201 is hinged to the lower front end of the cutting table mounting bracket 4, the safety card adjustment plate 204 is hinged to the lower middle part of the cutting table mounting bracket 4, and the free end of the safety card connecting plate 203 is hinged to the lower rear end of the cutting table mounting bracket 4.

[0057] Specifically, a first hinge hole 104 is provided in the middle of the hook plate 101, and a second hinge hole 403 is provided at the lower front end of the cutter table mounting bracket 4. A pin assembly is installed in both the first hinge hole 104 and the second hinge hole 403, and the cutter table mounting bracket 4 and the hook plate 101 are hinged together by the pin assembly.

[0058] A third hinge hole 105 is provided at the free end of the hook plate connecting plate 103, and a fourth hinge hole 408 is provided at the upper middle part of the cutter table hanging frame 4. A pin assembly is installed in both the third hinge hole 105 and the fourth hinge hole 408. The free end of the hook plate connecting plate 103 and the cutter table hanging frame 4 are hinged through the pin assembly.

[0059] A fixing plate 402 is also provided at the upper middle part of the cutter head bracket 4, and a fifth hinge hole 409 is provided on the fixing plate 402.

[0060] The lower rear end of the cutting table body 3 is provided with a cutting table shaft 303, the front end of the cutting table cylinder 5 is provided with a sixth hinge hole, and the lower front end of the cutting table bracket 4 is also provided with a seventh hinge hole 404, and the seventh hinge hole 404 is located in front of and below the second hinge hole 403.

[0061] The free end of the safety plate 201 is provided with an eighth hinge hole 205. The cutting table shaft 303, the sixth hinge hole, the seventh hinge hole 404 and the eighth hinge hole 205 are all installed with a pin assembly. The lower rear end of the cutting table body 3, the front end of the cutting table cylinder 5, the lower front end of the cutting table bracket 4 and the free end of the safety plate 201 are all hinged together by the pin assembly.

[0062] The safety card connecting plate 203 has a ninth hinge hole 207 at its free end, and the safety card adjusting plate 204 has at least two elongated holes 206 along its length. Preferably, one elongated hole 206 is provided in the middle of the safety card adjusting plate 204 and another at its free end, for a total of two elongated holes 206. Preferably, the elongated holes 206 are oblong holes.

[0063] A hinge plate 406 is provided at the lower middle part of the cutter head bracket 4. A tenth hinge hole 405 is provided on the hinge plate 406. An eleventh hinge hole 410 is provided at the lower rear end of the cutter head bracket 4. A pin assembly is installed in the tenth hinge hole 405 and one of the elongated holes 206. The cutter head bracket 4 can be adjusted by connecting with different elongated holes 206 on the safety card adjustment plate 204 through the pin assembly. A pin assembly is installed in the ninth hinge hole 207 and the eleventh hinge hole 410. The safety card connecting plate 203 is hinged to the lower rear end of the cutter head bracket 4 through the pin assembly.

[0064] Note: All the above pin assemblies use matching pins and cotter pins. The pins in all pin assemblies are axially aligned. The appropriate model or size of pin assembly can be selected according to the actual situation to ensure the stability and reliability of rotation at each hinge.

[0065] The following describes the quick replacement process for the header body 3:

[0066] When the cutter body 3 is not attached, the status is as follows: Figure 5 As shown, at this time, the safety clip 2 of the cutting table cylinder 5 falls down, and the hook plate 101 of the quick-change mechanism 1 is lifted;

[0067] When it is necessary to attach the cutter head 3, the vehicle moves forward, as follows: Figure 7As shown, the safety catch 2 mechanism of the cutting table cylinder 5 rises, the cylinder rod of the cutting table cylinder 5 retracts (the cylinder rod is the piston rod), and the cutting table mounting bracket 4 slowly rotates around the hinge axis between the mounting port 407 and the frame 6, so that the crossbeam 302 on the cutting table body 3 is hooked onto the mounting part 401 on the cutting table mounting bracket 4. Then, the cylinder rod of the cutting table cylinder 5 extends, pushing the cutting table mounting bracket 4 to slowly rotate around the hinge axis between the mounting port 407 and the frame 6. When the cutting table body 3 is in position, as shown... Figure 6 As shown, the hook plate 101 in the quick-change mechanism 1 falls down and hooks the cutter shaft 303 on the cutter body 3, as shown in the figure. Figure 7 As shown, a pin assembly is finally installed in the fifth hinge hole 409 of the fixing plate 402 on the cutter table bracket 4 to block the hook plate connecting plate 103 from falling and limit it, thereby preventing the hook plate 101 in the quick replacement mechanism 1 from coming out.

[0068] When it is necessary to disassemble the cutter body 3, such as Figure 7 As shown, disconnect the pin assembly that hinges the hook plate connecting plate 103 and the fixed plate 402 in the quick-release mechanism 1, and then proceed as follows: Figure 6 As shown, the hook plate 101 of the quick-change mechanism 1 is lifted, causing the hook plate 101 of the quick-change mechanism 1 to disengage from the cutter shaft 303 on the cutter body 3. Then, the safety catch 2 mechanism of the cutter cylinder 5 rises, the cylinder rod of the cutter cylinder 5 retracts, and the cutter mounting bracket 4 slowly rotates around the hinge axis between the mounting port 407 on the cutter mounting bracket 4 and the frame 6, causing the upper crossbeam 302 of the cutter body 3 to disengage from the mounting part 401 on the cutter mounting bracket 4. Finally, the vehicle reverses, achieving separation of the cutter body 3. Figure 5 As shown; when quick disassembly and replacement of the cutting table body 3 is required, the above process can be repeated.

[0069] Example 2

[0070] A harvester includes a frame 6, a drive front wheel 7, and a header. The front end of the frame 6 is provided with a connecting part, which is located in the mounting port 407 and is hinged by a pin assembly to realize the rotational connection between the header and the frame 6. For ease of description, the hinge axis between the connecting part of the frame 6 and the header is referred to as the header rotation axis.

[0071] The process for quick replacement of the cutting table includes the following steps:

[0072] S1: As Figure 5 As shown, when the cutting table body 3 is not attached, the safety clip 2 mechanism of the cutting table cylinder 5 falls down, and the hook plate 101 of the quick replacement mechanism 1 is lifted.

[0073] S2: When it is necessary to attach the cutter body 3, the vehicle moves forward, lifts the safety card 2 of the cutter cylinder 5, and installs the pin assembly between the tenth hinge hole 405 in the cutter attachment frame 4 and the elongated hole 206 at the free end on the safety card adjustment plate 204 to achieve hinge connection.

[0074] S3: As Figure 7 As shown, the cylinder rod of the cutting table cylinder 5 retracts, and the cutting table mounting bracket 4 slowly rotates around the cutting table rotation axis, so that the upper crossbeam 302 of the cutting table body 3 is attached to the mounting part 401 of the cutting table mounting bracket 4.

[0075] S4: The cylinder rod of the hydraulic cylinder 5 extends, pushing the header mounting bracket 4 to slowly rotate around the header's rotation axis. When the header body 3 is in position, as... Figure 6 As shown, the hook plate 101 in the quick-change mechanism 1 falls down and hooks the cutter shaft 303 on the cutter body 3;

[0076] S5: As Figure 7 As shown, a pin assembly is finally installed in the fifth hinge hole 409 of the fixing plate 402 on the cutter table bracket 4 to block the hook plate connecting plate 103 from falling and limit it, thereby preventing the hook plate 101 in the quick replacement mechanism 1 from coming out.

[0077] S6: As Figure 7 As shown, when it is necessary to disassemble the cutter body 3, pull out the pin of the hook plate connecting plate 103 and the hook plate connecting plate 103 fixing plate 402 in the quick replacement mechanism 1.

[0078] S7: As Figure 6 As shown, the hook plate 101 of the quick-change mechanism 1 is lifted, so that the hook plate 101 of the quick-change mechanism 1 is disengaged from the pin of the cutter body 3 on the cutter body 3.

[0079] S8: As Figure 7 As shown, the safety clip 2 of the cutting table cylinder 5 is raised, the cylinder rod of the cutting table cylinder 5 is retracted, and the cutting table mounting bracket 4 slowly rotates around the mounting port 407 of the cutting table mounting bracket 4, so that the mounting part 401 on the cutting table mounting bracket 4 is disengaged from the crossbeam 302 on the cutting table body 3.

[0080] S9: As Figure 5 As shown, the vehicle reverses, thus separating the cutter body 3;

[0081] S10: When quick disassembly and replacement of the cutter body 3 is required, repeat the above process.

[0082] The beneficial effects of the technical solution of this utility model are:

[0083] In summary, the header adopts a modular design, using quick-disassembly, quick-assembly, and replacement mechanisms between components to solve the problem of exceeding size limits during transportation. Before transportation, each component is quickly disassembled and transported by module. After arriving at the designated work location, each component is quickly assembled to achieve operational readiness. When different crop (such as corn) planting patterns require different headers, the header components can be quickly replaced. This not only solves the transportation problem but also ensures the efficiency of disassembly and assembly of the corn harvester, and facilitates maintenance and repair.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0085] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting platform, characterized in that, include: Header body (3); The quick-release mechanism (1) includes a hook plate (101), an adjusting rod (102) and a hook plate connecting plate (103) that are hinged together in sequence. A cutting table mounting bracket (4) is provided with a mounting part (401) at the upper front end of the cutting table mounting bracket (4), the cutting table body (3) is mounted on the mounting part (401), the lower front end of the cutting table mounting bracket (4) is hinged to the hook plate (101), and the hook plate connecting plate (103) is hinged to the upper middle part of the cutting table mounting bracket (4). The cutting platform cylinder (5) is hinged to the rear end of the harvester frame (6) and the front end of the cutting platform cylinder (5) is hinged to the lower front end of the cutting platform mounting bracket (4). The rear end of the cutting platform mounting bracket (4) is provided with an installation port (407) for hinged to the harvester frame (6).

2. The cutting platform according to claim 1, characterized in that, It also includes a safety clip (2) for the cutting table cylinder (5), the safety clip (2) comprising a safety clip plate (201), a safety clip connecting rod (202) and a safety clip connecting plate (203) that are hinged together in sequence; The security card (2) also includes a security card adjustment plate (204), one end of which is hinged to the middle of the security card connecting plate (203); The free end of the safety card plate (201) is hinged to the lower front end of the cutting table bracket (4), the safety card adjustment plate (204) is hinged to the lower middle part of the cutting table bracket (4), and the free end of the safety card connecting plate (203) is hinged to the lower rear end of the cutting table bracket (4).

3. The cutting platform according to claim 2, characterized in that, The hook plate (101) has a first hinge hole (104) in the middle, and the lower front end of the cutter head bracket (4) has a second hinge hole (403). The first hinge hole (104) and the second hinge hole (403) are installed together with a pin assembly.

4. The cutting platform according to claim 3, characterized in that, The free end of the hook plate connecting plate (103) is provided with a third hinge hole (105), and the upper middle part of the cutting table hanging frame (4) is provided with a fourth hinge hole (408). The third hinge hole (105) and the fourth hinge hole (408) are used to install a pin assembly.

5. The cutting platform according to claim 3, characterized in that, A fixing plate (402) is also provided at the upper middle part of the cutting table bracket (4), and a fifth hinge hole (409) is provided on the fixing plate (402).

6. The cutting platform according to claim 3, characterized in that, The lower rear end of the cutting table body (3) is provided with a cutting table shaft (303), the front end of the cutting table cylinder (5) is provided with a sixth hinge hole, the lower front end of the cutting table bracket (4) is also provided with a seventh hinge hole (404), and the seventh hinge hole (404) is located in front of and below the second hinge hole (403). The cutting table shaft (303), the sixth hinge hole and the seventh hinge hole (404) are all equipped with a pin assembly.

7. The cutting platform according to claim 6, characterized in that, The safety card plate (201) has an eighth hinge hole (205) at its free end, the safety card connecting plate (203) has a ninth hinge hole (207) at its free end, and the safety card adjusting plate (204) has at least two elongated holes (206) along its length. The tenth hinge hole (405) is opened at the lower middle part of the cutter head bracket (4), and the eleventh hinge hole (410) is opened at the lower rear end of the cutter head bracket (4). A pin assembly is installed in the cutter shaft (303), the sixth hinge hole, the seventh hinge hole (404), and the eighth hinge hole (205). A pin assembly is installed in the tenth hinge hole (405) and one of the elongated holes (206). A pin assembly is installed in the ninth hinge hole (207) and the eleventh hinge hole (410).

8. The cutting platform according to claim 7, characterized in that, The lower rear end of the cutting table mounting bracket (4) is provided with a hinge plate (406), and the eleventh hinge hole (410) is provided on the hinge plate (406).

9. The cutting platform according to claim 1, characterized in that, The cutting platform body (3) includes a cutting platform weld (301), and an upper crossbeam (302) is provided on the upper part of the cutting platform weld (301). The cutting platform body (3) is hung on the hanging part (401) through the upper crossbeam (302).

10. A harvester, comprising a frame (6), characterized in that, It also includes a cutting table according to any one of claims 1-9, wherein the front end of the frame (6) is provided with a connecting part, the connecting part being located in the mounting port (407) and hinged by a pin assembly.

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