Header assembly for corn harvester and corn harvester

Abstract

The utility model relates to the technical field of agricultural mechanical equipment, in particular to a header assembly for a corn harvester and the corn harvester. The header assembly for the corn harvester comprises a header frame, a cutting mechanism, an ear picking mechanism and a driving mechanism, wherein the cutting mechanism is mounted on the header frame; the cutting mechanism is used for cutting off and / or smashing corn straw in a field. The ear picking mechanism comprises an auger conveying assembly and an ear picking assembly, the first end of the ear picking assembly is connected with the auger conveying assembly, and the auger conveying assembly is movably connected with the header frame; the ear picking mechanism is used for separating corns from corn straws; the driving mechanism is connected with the auger conveying assembly and used for driving the auger conveying assembly to rotate relative to the header frame so as to adjust the height of the second end of the ear picking assembly relative to the cutting mechanism. The corn harvester can harvest corns with different heights so as to meet the actual requirements of different users on corn harvesting.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a header assembly for a corn harvester and the corn harvester. Background Art

[0002] In the current market, corn harvesters feature a relatively simple header structure, with the header and blade return section typically integrated into a single design. This structure, when faced with high corn cobs, requires manual lifting of the header to ensure harvesting efficiency. However, this approach results in excessively high stubble, resulting in poor return to the field and failing to meet user needs.

[0003] In view of this, a harvesting platform that can not only ensure the effect of returning corn to the field but also harvest corn at different heights needs to be studied urgently to meet the urgent needs of modern agricultural production. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the utility model provides a cutting table assembly for a corn harvester and a corn harvester, which can ensure the field return effect while also being able to harvest corn at different heights to meet the actual needs of different users for corn harvesters.

[0006] According to a first aspect of the present invention, a header assembly for a corn harvester is provided, comprising:

[0007] Cutting platform frame;

[0008] The cutting mechanism includes a main transmission assembly, a driven transmission assembly, and a blade-fling assembly; the main transmission assembly includes a driving shaft and a driving gear, at least one driving gear is coaxially arranged on the driving shaft, and the driving shaft is axially rotatably mounted on the cutting frame; the driven transmission assembly includes a driven shaft and a driven gear, the driven shaft is mounted on the cutting frame, and the axial direction of the driven shaft is perpendicular to the axial direction of the driving shaft; the driven gear is connected to the first end of the driven shaft, and the driven gear and the driving gear are meshed; the blade-fling assembly is connected to the second end of the driven shaft, and the blade-fling assembly is used to cut and / or crush corn stalks in the field;

[0009] The ear picking mechanism includes an auger conveying assembly and an ear picking assembly, wherein the first end of the ear picking assembly is connected to the auger conveying assembly, and the auger conveying assembly is movably connected to the cutting platform frame;

[0010] The driving mechanism is connected to the auger conveying assembly and is used to drive the auger conveying assembly to rotate relative to the cutting platform frame to adjust the height of the second end of the ear picking assembly relative to the cutting mechanism.

[0011] Optionally, the driving mechanism includes a hydraulic cylinder, one end of the hydraulic cylinder is movably connected to the auger conveying assembly, and the other end of the hydraulic cylinder is movably connected to the cutting platform; the hydraulic cylinder is used to drive the auger conveying assembly to rotate relative to the cutting platform to control the second end of the ear picking assembly to approach or move away from the cutting mechanism.

[0012] Optionally, the blade-fling assembly includes a blade-fling box and a blade-fling part, the blade-fling box is transmission-connected to the second end of the driven shaft, the blade-fling part is mounted on the blade-fling box, and the blade-fling part is used to cut and / or crush corn stalks in the field.

[0013] Optionally, a first connecting seat is provided on the side where the auger conveying assembly is connected to the ear picking assembly, a second connecting seat is provided on the side where the driven shaft of the cutting frame is installed, the piston rod of the hydraulic cylinder is hinged to the first connecting seat, and the cylinder barrel of the hydraulic cylinder is hinged to the second connecting seat.

[0014] Optionally, a connecting plate is provided on the auger conveying assembly, and the driving shaft and the connecting plate are rotatably connected.

[0015] Optionally, a hinge seat is provided on the cutting platform frame, and the connecting plate is movably connected to the hinge seat via a driving shaft.

[0016] Optionally, the harvesting frame includes:

[0017] The driving shaft mounting bracket is used to mount the driving shaft; the articulated seat is connected to the driving shaft mounting bracket;

[0018] The limiting part is connected to the driving shaft mounting bracket; the limiting part is used to limit the rotation angle of the auger conveying component on the cutting platform frame.

[0019] Optionally, the limiting portion includes a limiting plate arranged below the auger conveying assembly, and the limiting plate is provided with a groove arranged toward the auger conveying assembly; when the auger conveying assembly is rotated to a preset angle on the cutting frame, the side wall of the auger conveying assembly can contact the groove to limit the rotation angle of the auger conveying assembly.

[0020] Optionally, the ear picking component includes:

[0021] The ear picking rack is connected to the auger conveying assembly;

[0022] The ear picking roller is installed on the ear picking frame and is used to separate the corn from the corn stalks and transport the corn to the auger conveying assembly.

[0023] According to the second aspect of the present invention, a corn harvester is provided, characterized in that it includes the header assembly for a corn harvester according to the first aspect and various embodiments.

[0024] One of the above technical solutions has at least the following advantages or beneficial effects:

[0025] The utility model provides a cutting table assembly for a corn harvester, which is achieved by movably connecting the auger conveying assembly with the cutting table frame, and utilizing a driving mechanism to drive the auger conveying assembly to rotate relative to the cutting table frame, and adjusting the height of the second end of the ear picking assembly connected to the auger conveying assembly so that the ear picking assembly can complete ear picking of corns of different heights. It can be seen that the cutting table assembly for a corn harvester provided in this application can not only realize straw return to the field through the cutting mechanism, but also harvest corns of different heights to meet the actual needs of different users for corn harvesting.

[0026] The corn harvester provided by the present invention is provided with the above-mentioned cutting table assembly for corn harvesters. Since the cutting table assembly for corn harvesters has the above-mentioned technical effects, the corn harvester provided with the cutting table assembly for corn harvesters should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a header assembly for a corn harvester according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic diagram showing a driving assembly according to an embodiment of the present invention adjusting the height of the second end of the ear picking assembly relative to the cutting mechanism is shown;

[0029] Figure 3 A schematic diagram showing another embodiment of the present invention in which a driving assembly adjusts the height of the second end of the ear picking assembly relative to the cutting mechanism is shown;

[0030] Figure 4 An exploded view of a header assembly for a corn harvester according to an embodiment of the present invention is shown;

[0031] Figure 5 A schematic structural diagram of a header assembly for a corn harvester according to another embodiment of the present invention is shown;

[0032] Figure 6 A structural schematic diagram of a header assembly for a corn harvester according to another embodiment of the present invention is shown.

[0033] Description of Reference Numerals

[0034] 1. Cutting platform frame, 101. Articulated seat, 102. Drive shaft mounting frame, 103. Limiting part;

[0035] 2. Cutting mechanism, 201. driving shaft, 202. driving gear, 203. driven shaft, 204. driven gear, 205. blade-flinging box, 206. blade-flinging unit, 207. cutting arm;

[0036] 3. Ear picking mechanism, 301. Auger conveying assembly, 302. Ear picking assembly, 303. First connecting seat, 304. Second connecting seat, 305. Connecting plate, 3011. Housing, 3012. Drive shaft, 3013. Spiral blade, 3014. Opening, 3021. Ear picking frame, 3022. Ear picking roller;

[0037] 4. Hydraulic cylinder, 401, piston rod, 402, cylinder barrel. DETAILED DESCRIPTION

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0039] The following describes a header assembly for a corn harvester and a corn harvester according to some embodiments of the present invention with reference to the accompanying drawings.

[0040] See also Figures 1 to 6 The utility model provides a cutting table assembly for a corn harvester according to an embodiment of the present invention; the cutting table assembly for a corn harvester includes a cutting table frame 1, a cutting mechanism 2, an ear picking mechanism 3 and a driving mechanism, the cutting mechanism 2 includes a main transmission assembly, a slave transmission assembly and a fling knife assembly; the main transmission assembly includes a driving shaft 201 and a driving gear 202, at least one driving gear 202 is coaxially arranged on the driving shaft 201, and the driving shaft 201 is axially rotatably installed on the cutting table frame 1; the slave transmission assembly includes a driven shaft 203 and a driven gear 204, the driven shaft 203 is installed on the cutting table frame 1, and the axial direction of the driven shaft 203 is perpendicular to the axial direction of the driving shaft 201; the driven gear The wheel 204 is connected to the first end of the driven shaft 203, and the driven gear 204 is meshed with the driving gear 202; the blade fling assembly is connected to the second end of the driven shaft 203, and the blade fling assembly is used to cut and / or crush the corn stalks in the field; the ear picking mechanism 3 includes an auger conveying assembly 301 and an ear picking assembly 302, and the first end of the ear picking assembly 302 is connected to the auger conveying assembly 301, and the auger conveying assembly 301 is movably connected to the cutting frame 1; the ear picking mechanism 3 is used to separate corn from the corn stalks; the driving mechanism is connected to the auger conveying assembly 301, and the driving mechanism is used to drive the auger conveying assembly 301 to rotate relative to the cutting mechanism 2 to adjust the height of the second end of the ear picking assembly 302.

[0041] When there are at least two driving gears 202 , the at least two driving gears 202 are distributed on the driving shaft 201 . The driving gear 202 and the driven gear 204 can both be bevel gears that can mesh with each other.

[0042] It should be noted that a cutting arm 207 is installed on the cutting platform frame 1, the driven shaft 203 is located inside the cutting arm 207 and is coaxially arranged with the cutting arm 207, and the first end of the driven shaft 203 passes through the cutting platform frame 1 through the cutting arm 207, so that the first end of the driven shaft 203 is driven and connected to the driving shaft 201 through the engagement of the driven gear 204 and the driving gear 202.

[0043] By selecting the cutting mechanism 2 as a structure including a main transmission component, a slave transmission component and a blade swinging component, and selecting the main transmission component as a structure including a driving shaft 201 and a driving gear 202, and selecting the slave transmission component as a structure including a driven shaft 203 and a driven gear 204, and arranging a driving gear 202 coaxially arranged on the driving shaft 201 and engaging with the driven gear 204 arranged on the driven shaft 203, the driven shaft 203 can be rotated along with the axial rotation of the driving shaft 201 on the cutting frame 1, so that the blade swinging component installed can operate along with the rotation of the driven shaft 203, and the operation of the blade swinging component can be controlled by controlling the rotation of the driving shaft 201, thereby realizing the control of the cutting and / or crushing of the corn stalks in the field by the blade swinging component.

[0044] Here, the auger conveying assembly 301 includes a housing 3011, a transmission shaft 3012 and a spiral blade 3013 located within the housing 3011. The spiral blade 3013 is mounted on the transmission shaft 3012. The ends of the transmission shaft 3012 are movably connected to opposite side walls of the housing 3011. The housing 3011 has an opening 3014. The ear picking assembly 302 is used to separate corn from the corn stalks and transport them to the auger conveying assembly 301. The spiral blade 3013 is used to transport the corn conveyed by the ear picking assembly 302 to the opening 3014 of the housing 3011 due to its rotation.

[0045] In this embodiment, if Figure 2 and Figure 3 As shown, by movably connecting the auger conveying assembly 301 with the cutting platform frame 1 and utilizing the driving mechanism to drive the auger conveying assembly 301 to rotate relative to the cutting platform frame 1, the height of the second end of the ear picking assembly 302 connected to the auger conveying assembly 301 relative to the cutting mechanism 2 can be adjusted so that the ear picking assembly 302 can complete the ear picking of corn at different heights. It can be seen that the cutting platform assembly for the corn harvester provided in this application can not only realize the straw return to the field through the cutting mechanism 2, but also can harvest corn at different heights to meet the actual needs of different users for corn harvesting.

[0046] In some possible embodiments, the driving mechanism includes a hydraulic cylinder 4, one end of the hydraulic cylinder 4 is movably connected to the auger conveying assembly 301, and the other end of the hydraulic cylinder 4 is movably connected to the cutting platform 1; the hydraulic cylinder 4 is used to drive the auger conveying assembly 301 to rotate relative to the cutting mechanism 2 to control the second end of the ear picking assembly 302 to approach or move away from the cutting mechanism 2.

[0047] Here, see Figure 5 There are at least two hydraulic cylinders 4, the axes of the at least two hydraulic cylinders 4 are arranged in parallel, and the telescopic directions of the piston rods 401 of the at least two hydraulic cylinders 4 are the same.

[0048] In this embodiment, by selecting the hydraulic cylinder 4 as the driving mechanism, and making one end of the hydraulic cylinder 4 movably connected to the auger conveying assembly 301, and the other end of the hydraulic cylinder 4 movably connected to the cutting platform 1, it is possible to control the telescopic length of the piston rod 401 of the hydraulic cylinder 4, drive the auger conveying assembly 301 to rotate relative to the cutting platform 1, and drive the auger conveying assembly 301 to rotate relative to the cutting mechanism 2 connected to the cutting platform 1, so that the ear picking assembly 302 connected to the auger conveying assembly 301 rotates relative to the cutting mechanism 2 along with the auger conveying assembly 301, thereby realizing the control of the second end of the ear picking assembly 302 to approach or move away from the cutting mechanism 2.

[0049] Furthermore, the blade-fling assembly includes a blade-fling box 205 and a blade-fling unit 206. The blade-fling box 205 is transmission-connected to the second end of the driven shaft 203. The blade-fling unit 206 is installed on the blade-fling box 205. The blade-fling unit 206 is used to cut and / or crush corn stalks in the field.

[0050] Here, the blade-flinging box 205 may include a box body, and a driving wheel group and a connecting shaft arranged in the box body. The box body is installed on the cutting arm 207, and the second end of the driven shaft 203 is connected to the driving wheel group. The connecting shaft is axially rotatably connected to the top and bottom of the box body, and the connecting shaft is also axially connected to the driving wheel group. The driving wheel group is used to make the connecting shaft rotate axially with the rotation of the driven shaft 203; the connecting shaft passes through the top and bottom of the box body and a blade-flinging part 206 can be installed on each of the two ends.

[0051] In this embodiment, by connecting the blade box 205 to the second end of the driven shaft 203, it is possible to realize that when the driven shaft 203 rotates along with the axial rotation of the driving shaft 201 on the cutting frame 1, the blade part 206 installed in the blade box 205 rotates along with the driven shaft 203, and the rotation of the blade part 206 can be controlled by controlling the rotation of the driving shaft 201, thereby realizing the control of the cutting and / or crushing of the corn stalks in the field by the blade part 206.

[0052] Optionally, a first connecting seat 303 is provided on the side where the auger conveying component 301 is connected to the ear picking component 302, a second connecting seat 304 is provided on the side where the driven shaft 203 is installed on the cutting platform 1, the piston rod 401 of the hydraulic cylinder 4 is hinged to the first connecting seat 303, and the cylinder barrel 402 of the hydraulic cylinder 4 is hinged to the second connecting seat 304.

[0053] In this embodiment, the first connecting seat 303 is arranged on the side where the auger conveying assembly 301 is connected to the ear picking assembly 302, and the second connecting seat 304 is arranged on the side where the driven shaft 203 is installed on the cutting frame 1. The hydraulic cylinder 4, which is hinged to the first connecting seat 303 and the second connecting seat 304, can be located on the side where the auger conveying assembly 301 is connected to the ear picking assembly 302. Then, by controlling the telescopic length of the piston rod 401 of the hydraulic cylinder 4, the rotation of the auger conveying assembly 301 relative to the cutting frame 1 can be controlled, thereby realizing the rotation of the ear picking assembly 302 connected to the auger conveying assembly 301 relative to the cutting frame 1.

[0054] Optionally, a connecting plate 305 is provided on the auger conveying assembly 301, and the driving shaft 201 is rotatably connected to the connecting plate 305.

[0055] In this embodiment, by rotatably connecting the connecting plate 305 on the auger conveying assembly 301 with the driving shaft 201, the auger conveying assembly 301 can be rotated relative to the cutting mechanism 2 with the axis of the driving shaft 201 as the rotation center, thereby realizing the auger conveying assembly 301 being rotatably connected to the cutting mechanism 2.

[0056] Alternatively, see Figure 4 A hinge seat 101 is provided on the cutting platform frame 1, and the connecting plate 305 is movably connected to the hinge seat 101 through the driving shaft 201.

[0057] Here, the articulated seat 101 includes a first articulated plate and a second articulated plate arranged in parallel. When the auger conveying assembly 301 is movably connected to the cutting mechanism 2, the active shaft 201 can be passed through the first articulated plate, the connecting plate 305 and the second articulated plate in sequence to achieve the active connection between the auger conveying assembly 301 and the cutting mechanism 2.

[0058] In this embodiment, by providing an articulated seat 101 on the cutting platform frame 1 and movably connecting the connecting plate 305 to the articulated seat 101 through the driving shaft 201, the auger conveying assembly 301 can be movably connected to the cutting mechanism 2. This connection structure is not only simple in structure, but also the auger conveying assembly 301 can prevent the auger conveying assembly 301 from moving along the length direction of the driving shaft 201 through the cooperation of the articulated seat 101 and the connecting plate 305, so as to ensure that the auger conveying assembly 301 is stably installed on the cutting mechanism 2.

[0059] Furthermore, the cutting platform frame 1 includes a driving shaft mounting frame 102 and a limiting portion 103, the driving shaft mounting frame 102 is used to install the driving shaft 201; the articulated seat 101 is connected to the driving shaft mounting frame 102; the limiting portion 103 is connected to the driving shaft mounting frame 102; the limiting portion 103 is used to limit the rotation angle of the auger conveying assembly 301 on the cutting platform frame 1.

[0060] Here, the articulated seat 101 is connected to a side wall of the driving shaft mounting bracket 102 for mounting the driven shaft 203 .

[0061] In this embodiment, by selecting the cutting platform frame 1 to include a driving shaft mounting frame 102 and a limiting portion 103, not only can the driving shaft 201 be installed on the cutting platform frame 1, but also the setting of the limiting portion 103 can limit the rotation angle of the auger conveying assembly 301 on the cutting platform frame 1 to ensure that the auger conveying assembly 301 rotates within a preset rotation angle range, thereby limiting the adjustment height of the second end of the ear picking assembly 302 connected to the auger conveying assembly 301.

[0062] Furthermore, the limiting portion 103 includes a limiting plate arranged below the auger conveying assembly 301, and the limiting plate is provided with a groove arranged toward the auger conveying assembly 301; when the auger conveying assembly 301 is rotated to a preset angle on the cutting platform 1, the side wall of the auger conveying assembly 301 can contact the groove to limit the rotation angle of the auger conveying assembly 301.

[0063] Here, when the auger conveying assembly 301 rotates to a preset angle on the cutting platform frame 1, the side wall of the auger conveying assembly 301 can fit with the upper surface of the groove.

[0064] In this embodiment, the limiting portion 103 is selected as a limiting plate provided below the auger conveying assembly 301, and a groove is provided on the limiting plate toward the auger conveying assembly 301, so that when the auger conveying assembly 301 is rotated to a preset angle on the cutting platform 1, the side wall of the auger conveying assembly 301 can contact the groove, so that the auger conveying assembly 301 cannot continue to rotate under the restriction of the groove, thereby limiting the rotation angle of the auger conveying assembly 301. The limiting portion 103 is not only simple in structure, but also can ensure that the rotation range of the auger conveying assembly 301 is limited within the preset angle.

[0065] In some possible embodiments, the ear picking assembly 302 includes an ear picking frame 3021 and an ear picking roller 3022, and the ear picking frame 3021 is connected to the auger conveying assembly 301; the ear picking roller 3022 is installed on the ear picking frame 3021, and the ear picking roller 3022 is used to separate the corn from the corn stalks and transport the corn to the auger conveying assembly 301.

[0066] Here, the ear picking roller unit 3022 includes two parallel ear picking rollers, and the length direction of each ear picking roller is perpendicular to the length direction of the auger conveying assembly 301.

[0067] When the ear picking component 302 separates the corn from the corn stalks, the driving component can drive the auger conveying component 301 to rotate relative to the cutting mechanism 2, and adjust the height of the second end of the ear picking component 302 so that the second end of the ear picking component 302 is adjusted to a position where the corn can be separated from the corn stalks, and then the ear picking roller part 3022 is controlled to operate to separate the corn from the corn stalks and transport it to the auger conveying component 301.

[0068] An embodiment of the present invention provides a corn harvester, which includes a header assembly for a corn harvester as described in any of the above embodiments.

[0069] Since the corn harvester of this embodiment includes any of the header assemblies for corn harvesters in the first aspect described above, it has the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0070] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0071] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0072] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0073] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0074] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A header assembly for a corn harvester, characterized in that: include: Cutting platform frame; The cutting mechanism includes a main transmission assembly, a driven transmission assembly and a fling knife assembly; the main transmission assembly includes a driving shaft and a driving gear, at least one of the driving gears is coaxially arranged on the driving shaft, and the driving shaft is axially rotatably mounted on the cutting frame; the driven transmission assembly includes a driven shaft and a driven gear, the driven shaft is mounted on the cutting frame, and the axial direction of the driven shaft is perpendicular to the axial direction of the driving shaft; the driven gear is connected to the first end of the driven shaft, and the driven gear is meshed with the driving gear; the fling knife assembly is connected to the second end of the driven shaft, and the fling knife assembly is used to cut and / or crush corn stalks in the field; The ear picking mechanism comprises an auger conveying assembly and an ear picking assembly, wherein the first end of the ear picking assembly is connected to the auger conveying assembly, and the auger conveying assembly is movably connected to the harvesting frame; The driving mechanism is connected to the auger conveying assembly and is used to drive the auger conveying assembly to rotate relative to the cutting platform frame to adjust the height of the second end of the ear picking assembly relative to the cutting mechanism.

2. The header assembly for a corn harvester according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder, one end of which is movably connected to the auger conveying assembly, and the other end of which is movably connected to the cutting platform; the hydraulic cylinder is used to drive the auger conveying assembly to rotate relative to the cutting platform to control the second end of the ear picking assembly to approach or move away from the cutting mechanism.

3. The header assembly for a corn harvester according to claim 2, characterized in that: The blade-fling assembly includes a blade-fling box and a blade-fling part. The blade-fling box is transmission-connected to the second end of the driven shaft. The blade-fling part is installed on the blade-fling box. The blade-fling part is used to cut and / or crush corn stalks in the field.

4. The header assembly for a corn harvester according to claim 3, characterized in that: A first connecting seat is provided on the side where the auger conveying assembly is connected to the ear picking assembly, a second connecting seat is provided on the side where the driven shaft is installed on the cutting frame, the piston rod of the hydraulic cylinder is hinged to the first connecting seat, and the cylinder barrel of the hydraulic cylinder is hinged to the second connecting seat.

5. The header assembly for a corn harvester according to claim 3, characterized in that: The auger conveying assembly is provided with a connecting plate, and the driving shaft is rotatably connected to the connecting plate.

6. The header assembly for a corn harvester according to claim 5, characterized in that: A hinge seat is provided on the cutting platform frame, and the connecting plate is movably connected to the hinge seat through the driving shaft.

7. The header assembly for a corn harvester according to claim 6, characterized in that: The header frame includes: A driving shaft mounting bracket is used to mount the driving shaft; the articulated seat is connected to the driving shaft mounting bracket; A limiting portion is connected to the driving shaft mounting bracket; the limiting portion is used to limit the rotation angle of the auger conveying assembly on the cutting platform frame.

8. The header assembly for a corn harvester according to claim 7, characterized in that: The limiting portion includes a limiting plate arranged below the auger conveying assembly, and the limiting plate is provided with a groove arranged toward the auger conveying assembly; when the auger conveying assembly is rotated to a preset angle on the cutting frame, the side wall of the auger conveying assembly can contact the groove to limit the rotation angle of the auger conveying assembly.

9. The header assembly for a corn harvester according to any one of claims 1 to 8, characterized in that: The ear picking component includes: an ear picking rack connected to the auger conveying assembly; The ear picking roller is installed on the ear picking frame and is used for separating the corn from the corn stalks and transporting the corn into the auger conveying assembly.

10. A corn harvester, characterized in that: The invention comprises a header assembly for a corn harvester according to any one of claims 1 to 9.

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