Line-spacing-adjustable corn header and harvester

Abstract

The utility model relates to the technical field of agricultural machinery, and particularly discloses a row-spacing-adjustable corn header and a harvester, and the row-spacing-adjustable corn header comprises an ear picking support, a fixed ear picking mechanism, a slideway, a movable ear picking mechanism and a linear driving mechanism. The fixed ear picking mechanism comprises at least one ear picking device fixedly installed on an ear picking support. The two slide ways are arranged on the ear picking support in a sliding mode and located on the two sides of the fixed ear picking mechanism respectively; the two movable ear picking mechanisms and the two linear driving mechanisms are arranged in one-to-one correspondence with the two slide ways, and each movable ear picking mechanism comprises at least one ear picking device fixedly mounted on the corresponding slide way; the two ends of the linear driving mechanism are connected with the ear picking support and the corresponding sliding ways respectively. The corn header with the adjustable row spacing can adapt to the planting modes of uniform row spacing and large and small row spacing. Only two linear driving mechanisms need to be arranged, the whole machine structure can be simplified, the cost is reduced, the adjusting efficiency is improved, and the requirement for the width size of the ear picking support is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a corn cutting platform with adjustable row spacing and a harvester. Background Art

[0002] The current corn planting method may vary due to regional differences. Some regions generally adopt the equal row spacing planting mode, while some regions adopt the large and small row spacing planting mode.

[0003] Existing corn cutting platforms include fixed row spacing corn cutting platforms and adjustable row spacing corn cutting platforms. For corn cutting platforms with fixed row spacing, they are usually suitable for even-row planting modes, and there are restrictions on the row spacing size, which is not suitable for planting modes with large and small row spacings. For corn cutting platforms with adjustable row spacing, multiple ear picking devices of the corn cutting platform with adjustable row spacing are installed horizontally and side by side on the cutting platform frame, and the ear picking devices can adjust their positions by being driven by a driving member, so as to adapt to different planting row spacing requirements, and can be suitable for even-row spacing planting modes and planting modes with large and small row spacings. However, for this type of corn cutting platform with adjustable row spacing, on the one hand, each ear picking device needs to be driven by a driving member, resulting in a complex structure of the whole machine and high cost; on the other hand, each ear picking device needs to be adjusted separately during adjustment, and the adjustment efficiency is low; on the other hand, the adjustment stroke of each ear picking device needs to be gradually increased from the middle to the two sides, resulting in a larger width dimension of the cutting platform frame.

[0004] Therefore, there is an urgent need for a corn cutting platform with adjustable row spacing and a harvester to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a corn cutting platform and a harvester with adjustable row spacing, which are suitable for planting modes with large and small row spacings, are easy to adjust and have a simple structure.

[0006] On the one hand, the utility model provides a corn cutting platform with adjustable row spacing, and the corn cutting platform with adjustable row spacing comprises:

[0007] Picking ears support;

[0008] A fixed ear picking mechanism, comprising at least one ear picking device fixedly mounted on the ear picking bracket;

[0009] Two slideways are both slidably arranged on the ear picking bracket and are respectively located on both sides of the fixed ear picking mechanism;

[0010] Two movable ear-picking mechanisms are arranged in one-to-one correspondence with the two slideways, and the movable ear-picking mechanism includes at least one ear-picking device fixedly installed on the corresponding slideway;

[0011] Two linear drive mechanisms are arranged in one-to-one correspondence with the two slideways, one end of the linear drive mechanism is connected to the ear picking bracket, and the other end of the linear drive mechanism is connected to the corresponding slideway and is used to drive the corresponding slideway to slide relative to the ear picking bracket.

[0012] As an optimal technical solution for a corn cutting station with adjustable row spacing, the rear end of the ear picking bracket is provided with a crossbeam extending along the width direction of the ear picking bracket, the two slides are slidably connected to the crossbeam, and the linear drive mechanism is used to drive the corresponding slide to move back and forth along the length direction of the crossbeam.

[0013] As a preferred technical solution for the corn cutting table with adjustable row spacing, the corn cutting table with adjustable row spacing also includes a slider, each of the slides is fixedly provided with a plurality of sliders, a plurality of the sliders are slidably fitted with the crossbeam, and the sliders are made of self-lubricating material.

[0014] As an optimal technical solution for a corn cutting table with adjustable row spacing, the cross-section of the crossbeam is square, the cross-section of the slide is U-shaped, the slide includes a cross-plate and two side plates respectively connected to both sides of the cross-plate, and the cross-plate and each of the side plates are provided with the sliding block.

[0015] As a preferred technical solution for a corn harvesting station with adjustable row spacing, the number of the ear picking devices included in the fixed ear picking mechanism is less than or equal to three; the number of the ear picking devices included in the movable ear picking mechanism is less than or equal to three.

[0016] As a preferred technical solution for the corn cutting platform with adjustable row spacing, a lower flinging knife assembly is provided below each of the ear picking devices of the fixed ear picking mechanism;

[0017] The lower blade-flicking assembly is arranged below each of the ear-picking devices of the movable ear-picking mechanism.

[0018] As a preferred technical solution of the corn harvesting platform with adjustable row spacing, the fixed ear picking mechanism includes two or more ear picking devices, and the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism is 380mm-580mm; and / or,

[0019] The movable ear picking mechanism includes two or more ear picking devices, and the distance between any two adjacent ear picking devices in the movable ear picking mechanism is 380 mm-580 mm.

[0020] As a preferred technical solution of the corn harvesting platform with adjustable row spacing, the fixed ear picking mechanism includes two or more ear picking devices, and the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism is 400mm, 420mm, 450mm, 500mm and 550mm; and / or,

[0021] The movable ear picking mechanism includes two or more ear picking devices, and the distance between any two adjacent ear picking devices in the movable ear picking mechanism is 400 mm, 420 mm, 450 mm, 500 mm and 550 mm.

[0022] As a preferred technical solution of the corn cutting table with adjustable row spacing, the minimum sliding amount of the slideway is 0, and when the sliding amount of the slideway is 0, the distance between the movable ear picking mechanism and the fixed ear picking mechanism is the smallest;

[0023] The maximum sliding amount of the slideway is 100mm-300mm.

[0024] As a preferred technical solution for the corn cutting table with adjustable row spacing, the maximum sliding amount of the slideway is 150mm, 200mm or 250mm.

[0025] As a preferred technical solution for a corn harvesting station with adjustable row spacing, when the sliding amount of the slideway is 0, the spacing between any adjacent ear picking devices of the fixed ear picking mechanism and the ear picking devices of the movable ear picking mechanism is 450mm-650mm.

[0026] As a preferred technical solution for a corn harvesting station with adjustable row spacing, when the sliding amount of the slideway is 0, the spacing between any adjacent ear picking devices of the fixed ear picking mechanism and the ear picking devices of the movable ear picking mechanism is 500mm, 550mm or 650mm.

[0027] As a preferred technical solution of the corn harvesting platform with adjustable row spacing, the fixed ear picking mechanism includes two ear picking devices, and both of the two ear picking devices are middle ear picking devices;

[0028] The movable ear picking mechanism includes a plurality of the ear picking devices, one of the plurality of ear picking devices is a first ear picking device, and the others are second ear picking devices, and the first ear picking device is close to the middle ear picking device relative to each of the second ear picking devices.

[0029] As an optimal technical solution for a corn harvesting station with adjustable row spacing, the rear end of the ear picking bracket is provided with a transmission shaft extending along the width direction of the ear picking bracket, and the ear picking bracket is provided with a transmission drive mechanism for driving the transmission shaft to rotate circumferentially, the middle ear picking device, the first ear picking device and the second ear picking device are all transmission-connected to the transmission shaft, and the first ear picking device and the second ear picking device are axially slidingly connected to the transmission shaft.

[0030] As a preferred technical solution of the corn header with adjustable row spacing, the corn header with adjustable row spacing also includes:

[0031] A middle grain divider is fixed to the middle part of the front end of the ear picking support;

[0032] A width-adjustable crop divider, wherein the width-adjustable crop divider is disposed on both sides of the middle crop divider, and the two middle ear-picking devices are respectively located between the middle crop divider and the two width-adjustable crop dividers, and the middle ear-picking devices are respectively connected to the adjacent middle crop dividers and the width-adjustable crop dividers;

[0033] Side grain dividers, each of the width-adjustable grain dividers is provided with two side grain dividers in parallel along the width direction of the ear picking bracket on the side away from the middle grain divider, the adjacent width-adjustable grain dividers are connected to the side grain dividers through the first ear picking device, and the two adjacent side grain dividers are connected through the second ear picking device.

[0034] As an optimal technical solution for a corn harvesting table with adjustable row spacing, the transmission drive mechanism includes a hydraulic motor and a T-type transmission box, both of which are fixed at the middle of the rear end of the ear picking bracket, and the output shaft of the hydraulic motor is transmission-connected to the input shaft of the T-type transmission box, and the axes of the two output shafts of the T-type transmission box extend along the width direction of the ear picking bracket and are respectively transmission-connected to one of the transmission shafts.

[0035] As an optimal technical solution for a corn harvesting table with adjustable row spacing, the transmission shaft includes a first transmission shaft and a second transmission shaft, the first transmission shaft and the second transmission shaft are coaxially arranged, one end of the first transmission shaft is transmission-connected to the output shaft of the T-type transmission box, and the other end is transmission-connected to one end of the second transmission shaft through a sprocket clamp, the middle ear picking device is transmission-connected to the first transmission shaft, and the first ear picking device and the second ear picking device are both transmission-connected to the second transmission shaft.

[0036] As a preferred technical solution for the corn cutting platform with adjustable row spacing, the second transmission shaft is a hexagonal transmission shaft.

[0037] As a preferred technical solution for a corn harvesting platform with adjustable row spacing, a auger arranged parallel to the transmission shaft is rotatably provided at the rear end of the ear picking support, and the auger is transmission-connected to the transmission shaft.

[0038] As an optimal technical solution for a corn harvesting station with adjustable row spacing, the width-adjustable corn divider includes a keel located in the middle and side panels located on both sides of the keel, the side panels are hinged to the keel, and the two side panels are respectively hinged to the middle ear picking device and the first ear picking device through waist-shaped holes.

[0039] As a preferred technical solution for the corn cutting platform with adjustable row spacing, the linear drive mechanism is an oil cylinder.

[0040] The corn cutting table with adjustable row spacing provided by the utility model has at least the following beneficial effects:

[0041] The corn cutting platform with adjustable row spacing includes an ear picking bracket, a fixed ear picking mechanism, two slides, two movable ear picking mechanisms and two linear drive mechanisms. Among them, the fixed ear picking mechanism includes at least one ear picking device fixedly mounted on the ear picking bracket; the two slides can be slidably arranged on the ear picking bracket and are respectively located on both sides of the fixed ear picking mechanism; the two movable ear picking mechanisms are arranged one-to-one with the two slides, and the movable ear picking mechanism includes at least one ear picking device fixedly mounted on the corresponding slides; the two linear drive mechanisms are arranged one-to-one with the two slides, one end of the linear drive mechanism is connected to the ear picking bracket, and the other end of the linear drive mechanism is connected to the corresponding slide, and is used to drive the corresponding slide to slide relative to the ear picking bracket. The corn cutting platform with adjustable row spacing can adapt to the planting mode of uniform row spacing and the planting mode of large and small row spacing at the same time; and only two linear drive mechanisms need to be set, compared with the prior art, there is no need to set each ear picking device separately, which can effectively reduce the number of linear drive mechanisms, thereby simplifying the structure and reducing the cost, while also improving the adjustment efficiency and reducing the width size requirements of the ear picking bracket.

[0042] On the other hand, the utility model provides a harvester, comprising a corn cutting table with adjustable row spacing in any of the above solutions.

[0043] The harvester provided by the utility model has at least the following beneficial effects:

[0044] The harvester adopts the corn cutting platform with adjustable row spacing in the above scheme. The adjustable corn cutting platform has a simple structure, low cost and high adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a bottom view of a corn cutting table with adjustable row spacing in an embodiment of the utility model;

[0046] Figure 2It is a top view of a corn cutting platform with adjustable row spacing in an embodiment of the utility model;

[0047] Figure 3 It is a structural schematic diagram of the row spacing of corn harvested by a corn header with adjustable row spacing in an embodiment of the utility model;

[0048] Figure 4 The utility model is a partial structural schematic diagram of a corn cutting platform with adjustable row spacing in an embodiment of the utility model.

[0049] In the figure:

[0050] 100. Fixed ear picking mechanism; 200. Movable ear picking mechanism;

[0051] 1. Ear picking bracket; 2. Middle ear divider; 3. Adjustable width ear divider; 3-1. Keel; 3-2. Side plate; 4. Side ear divider; 5. Middle ear picking device; 6. Crossbeam; 7. Slide; 8. First ear picking device; 9. Second ear picking device; 10. Hydraulic motor; 11. T-type transmission box; 12. First transmission shaft; 13. Second transmission shaft; 14. Auger; 15. Oil cylinder; 16. Lower blade assembly; 17. Sliding block. DETAILED DESCRIPTION

[0052] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] Existing corn cutting platforms include fixed row spacing corn cutting platforms and adjustable row spacing corn cutting platforms. For corn cutting platforms with fixed row spacing, they are usually suitable for even-row planting modes, and there are restrictions on the row spacing size, which is not suitable for planting modes with large and small row spacings. For corn cutting platforms with adjustable row spacing, multiple ear picking devices of the corn cutting platform with adjustable row spacing are installed horizontally and side by side on the cutting platform frame, and the ear picking devices can adjust their positions by being driven by a driving member, so as to adapt to different planting row spacing requirements, and can be suitable for even-row spacing planting modes and planting modes with large and small row spacings. However, for this type of corn cutting platform with adjustable row spacing, on the one hand, each ear picking device needs to be driven by a driving member, resulting in a complex structure of the whole machine and high cost; on the other hand, each ear picking device needs to be adjusted separately during adjustment, and the adjustment efficiency is low; on the other hand, the adjustment stroke of each ear picking device needs to be gradually increased from the middle to the two sides, resulting in a larger width dimension of the cutting platform frame.

[0057] In this regard, this embodiment provides a corn header with adjustable row spacing to solve the above problem.

[0058] Figure 1 It is a bottom view of a corn cutting table with adjustable row spacing in an embodiment of the utility model. Figure 2 The top view of the corn cutting platform with adjustable row spacing in the embodiment of the utility model is shown in FIG. Figure 3 This is a schematic diagram of the structure of the corn row spacing of the corn harvesting platform with adjustable row spacing in the embodiment of the utility model. Figures 1 to 3As shown, the corn cutting platform with adjustable row spacing includes an ear picking bracket 1, a fixed ear picking mechanism 100, two slideways 7, two movable ear picking mechanisms 200 and two linear drive mechanisms. Among them, the fixed ear picking mechanism 100 includes at least one ear picking device fixedly mounted on the ear picking bracket 1; the two slideways 7 can be slidably arranged on the ear picking bracket 1 and are respectively located on both sides of the fixed ear picking mechanism 100; the two movable ear picking mechanisms 200 are arranged in a one-to-one correspondence with the two slideways 7, and the movable ear picking mechanism 200 includes at least one ear picking device fixedly mounted on the corresponding slideways 7; the two linear drive mechanisms are arranged in a one-to-one correspondence with the two slideways 7, one end of the linear drive mechanism is connected to the ear picking bracket 1, and the other end of the linear drive mechanism is connected to the corresponding slideway 7, and is used to drive the corresponding slideway 7 to slide relative to the ear picking bracket 1.

[0059] When the corn cutting stand with adjustable row spacing is actually used, each ear picking device of the fixed ear picking mechanism 100 and each ear picking device of the movable ear picking device correspond to a row of corn plants, wherein the two movable ear picking mechanisms 200 are driven to move relative to the frame by two linear drive mechanisms, so that the spacing between the ear picking devices of the movable ear picking mechanism 200 and the ear picking devices of the fixed ear picking mechanism 100 can be changed, and then the spacing between the two rows of corn can be adjusted to adapt to different corn planting patterns. Moreover, only two linear drive mechanisms need to be set up, and compared with the prior art, there is no need to set up each ear picking device separately, which can effectively reduce the number of linear drive mechanisms, thereby simplifying the structure and reducing costs, while also improving the adjustment efficiency and reducing the width size requirements of the ear picking bracket 1.

[0060] Preferably, the linear drive mechanism is an oil cylinder 15. In addition, conventional linear drive mechanisms existing in the prior art, such as linear motors and cylinders, etc., may also be used, all of which are within the protection scope of the present application.

[0061] Optionally, the number of ear picking devices included in the fixed ear picking mechanism 100 is less than or equal to three; the number of ear picking devices included in the movable ear picking mechanism 200 is less than or equal to three. Specifically, the number of ear picking devices included in the fixed ear picking mechanism 100 may be one, two or three; the number of ear picking devices included in the movable ear picking mechanism 200 may be one, two or three.

[0062] Of course, in other embodiments, the number of the ear picking devices included in the fixed ear picking mechanism 100 and the number of the ear picking devices included in the movable ear picking mechanism can also be set to more than three as needed.

[0063] Optionally, when the fixed ear picking mechanism 100 includes two or more ear picking devices, and when the movable ear picking mechanism 200 includes two or more ear picking devices, the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism 100 is equal to the spacing between any two adjacent ear picking devices in the movable ear picking mechanism 200. Of course, in other embodiments, the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism 100 and the spacing between any two adjacent ear picking devices in the movable ear picking mechanism 200 may also be set to be unequal according to actual needs.

[0064] In addition, since the distance between the ear picking device of the movable ear picking mechanism 200 and the ear picking device of the fixed ear picking mechanism 100 can be adjusted, the distance between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the ear picking devices of the movable ear picking mechanism 200 can be equal or unequal, which can be selected according to the actual usage scenario.

[0065] Among them, in this embodiment, when the fixed ear picking mechanism 100 includes two or more ear picking devices, the distance between any two adjacent ear picking devices in the fixed ear picking mechanism 100 is L1, and when the movable ear picking mechanism 200 includes two or more ear picking devices, the distance between any two adjacent ear picking devices in the movable ear picking mechanism 200 is also L1. The following gives in detail the 9 possible combination modes that can be realized.

[0066] 1) When the fixed ear picking mechanism 100 includes an ear picking device and the movable ear picking mechanism 200 includes an ear picking device, when the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal, it is suitable for the even-row planting mode; when the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal, when it is unequal, it can be suitable for the planting mode with large and small row spacing.

[0067] 2) When the fixed ear picking mechanism 100 includes two ear picking devices and the movable ear picking mechanism 200 includes one ear picking device, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and both are L2; in this case, the L2-L1-L2 planting mode is adapted. L1 and L2 can be unequal, in this case, it can be applied to the planting mode of large and small row spacing, specifically, planting with two large rows and two small rows; it can also be L2 = L1, in this case, it is applicable to the even row planting mode.

[0068] 3) When the fixed ear picking mechanism 100 includes one ear picking device and the movable ear picking mechanism 200 includes two ear picking devices, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and both are L2, and the L1-L2-L2-L1 planting mode is adapted at this time. L1 and L2 can be unequal, and at this time it can be applied to the planting mode of large and small row spacing, or L2=L1, and at this time it is applied to the planting mode of even row spacing.

[0069] 4) Figure 3 As shown, when the fixed ear picking mechanism 100 includes two ear picking devices and the movable ear picking mechanism 200 includes two ear picking devices, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and is L2, and the planting mode of L1-L2-L1-L2-L1 is adapted at this time. Among them, L1 and L2 can be unequal, and at this time it can be applied to the planting mode of large and small row spacing; it can also be L2 = L1, and at this time it is applicable to the planting mode of even row spacing.

[0070] 5) When the fixed ear picking mechanism 100 includes one ear picking device and the movable ear picking mechanism 200 includes three ear picking devices, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and L2, and the planting mode of L1-L1-L2-L2-L1-L1 is adapted. Among them, L1 and L2 can be unequal, and it can be applied to the planting mode of large and small row spacing; it can also be L2 = L1, and it is applicable to the planting mode of even row spacing.

[0071] 6) When the fixed ear picking mechanism 100 includes three ear picking devices and the movable ear picking mechanism 200 includes one ear picking device, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and both are L2, and the L2-L1-L1-L2 planting mode is adapted at this time. Among them, L1 and L2 can be unequal, and at this time it can be applied to the planting mode of large and small row spacing; it can also be L2 = L1, and at this time it is applicable to the planting mode of even rows.

[0072] 7) When the fixed ear picking mechanism 100 includes two ear picking devices and the movable ear picking mechanism 200 includes three ear picking devices, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and both are L2, and the planting mode of L1-L1-L2-L1-L2-L1-L1 is adapted. Among them, L1 and L2 can be unequal, and it can be applied to the planting mode of large and small row spacing; it can also be L2 = L1, and it is applicable to the planting mode of even row spacing.

[0073] 8) When the fixed ear picking mechanism 100 includes three ear picking devices and the movable ear picking mechanism 200 includes two ear picking devices, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and is L2, and the planting mode of L1-L2-L1-L1-L2-L1 is adapted. Among them, L1 and L2 can be unequal, and it can be applied to the planting mode of large and small row spacing; it can also be L2 = L1, and it is applicable to the planting mode of even row spacing.

[0074] 9) When the fixed ear picking mechanism 100 includes three ear picking devices and the movable ear picking mechanism 200 includes three ear picking devices, the spacing between the adjacent ear picking devices of the fixed ear picking mechanism 100 and the movable ear picking mechanism 200 is equal and is L2, and the planting mode of L1-L1-L2-L1-L1-L2-L1-L1 is adapted. Among them, L1 and L2 can be unequal, and it can be applied to the planting mode of large and small row spacing; it can also be L2 = L1, and it is applicable to the planting mode of even row spacing.

[0075] In this embodiment, L2 is greater than L1, and the specific values ​​of L1 and L2 can be set according to actual needs. Of course, in other embodiments, L2 can also be made smaller than L1.

[0076] Exemplarily, when the fixed ear picking mechanism 100 includes two or more ear picking devices, the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism 100 is 380mm-580mm; and / or, when the movable ear picking mechanism 200 includes two or more ear picking devices, the spacing between any two adjacent ear picking devices in the movable ear picking mechanism 200 is 380mm-580mm. Specifically, when the fixed ear picking mechanism 100 includes two or more ear picking devices, the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism 100 is 400mm, 420mm, 450mm, 500mm and 550mm. Of course, the spacing between any two adjacent ear picking devices in the fixed ear picking mechanism 100 can also be set to 380mm, 390mm, 410mm, 430mm, 440mm, 460mm, 470mm, 480mm, 490mm, 510mm, 520mm, 530mm or 540mm as needed. When the movable ear picking mechanism 200 includes two or more ear picking devices, the spacing between any two adjacent ear picking devices in the movable ear picking mechanism 200 is 400mm, 420mm, 450mm, 500mm and 550mm. Of course, the spacing between any two adjacent ear picking devices in the movable ear picking mechanism 200 can also be set to 380mm, 390mm, 410mm, 430mm, 440mm, 460mm, 470mm, 480mm, 490mm, 510mm, 520mm, 530mm or 540mm as needed.

[0077] Optionally, see Figure 4 The rear end of the ear picking bracket 1 is provided with a crossbeam 6 extending along the width direction of the ear picking bracket 1, and the two slideways 7 are slidably connected to the crossbeam 6. The linear drive mechanism is used to drive the corresponding slideway 7 to move back and forth along the length direction of the crossbeam 6. In this way, the sliding cooperation between the slideway 7 and the crossbeam 6 ensures the stability of the movement direction of the movable ear picking mechanism 200. Preferably, the cross section of the crossbeam 6 and the cross section of the slideway 7 are both non-circular, so that the rotation of the slideway 7 relative to the crossbeam 6 can be limited, so as to further improve the stability of the relative sliding of the slideway 7 and the crossbeam 6.

[0078] Figure 4 This is a partial structural diagram of a corn cutting platform with adjustable row spacing in an embodiment of the utility model. Figure 4The corn cutting platform with adjustable row spacing also includes a slider 17, each slideway 7 is fixedly provided with a plurality of sliders 17, and the plurality of sliders 17 are slidably fitted with the cross beam 6, and the slider 17 is made of a self-lubricating material, such as a smooth and wear-resistant polymer material such as nylon. By setting the slider 17, the sliding resistance of the slideway 7 can be effectively reduced, and the problem of huge noise and abnormal wear of the cross beam 6 during the sliding process of the slideway 7 is solved, and the comfort and safety stability of the agricultural machine operator during the driving process are increased. By setting the slider 17, the smoothness of the slideway 7 when sliding relative to the cross beam 6 can be ensured. Among them, the material of the slider 17 can be a material with self-lubricating properties such as nylon. Preferably, the cross section of the cross beam 6 is square, the cross section of the slideway 7 is U-shaped, the slideway 7 includes a horizontal plate, and two vertical plates respectively connected to both sides of the horizontal plate, and the horizontal plate and each vertical plate are provided with a slider 17. Among them, the number of sliders 17 on the horizontal plate and each vertical plate is not limited in this embodiment, and can be selected according to actual needs.

[0079] In this embodiment, the minimum sliding amount of the slide 7 is 0, and when the sliding amount of the slide 7 is 0, the distance between the movable ear picking mechanism 200 and the fixed ear picking mechanism 100 is the smallest. The maximum sliding amount of the slide 7 can be set according to actual needs. When the sliding amount of the slide 7 reaches the maximum, the distance between the movable ear picking mechanism 200 and the fixed ear picking mechanism 100 is the largest, that is, the value of L2 reaches the maximum at this time. Among them, the maximum sliding amount of the slide 7 is 100mm-300mm as exemplified in this embodiment. Preferably, the maximum sliding amount of the slide 7 is 150mm, 200mm or 250mm. Of course, the maximum sliding amount of the slide 7 can also be set to 100mm, 110mm, 120mm, 130mm, 140mm, 160mm, 170mm, 180mm, 190mm, 210mm, 220mm, 230mm, 240mm, 260mm, 270mm, 280mm, 290mm or 300mm as needed.

[0080] In this embodiment, when the sliding amount of the slideway 7 is 0, the spacing between any adjacent ear picking devices of the fixed ear picking mechanism 100 and the ear picking devices of the movable ear picking mechanism 200 is 450mm-650mm. Preferably, when the sliding amount of the slideway 7 is 0, the spacing between any adjacent ear picking devices of the fixed ear picking mechanism 100 and the ear picking devices of the movable ear picking mechanism 200 is 500mm, 550mm or 650mm. Of course, the spacing between any adjacent ear picking devices of the fixed ear picking mechanism 100 and the ear picking devices of the movable ear picking mechanism 200 can also be set to 450mm, 460mm, 470mm, 480mm, 490mm, 510mm, 520mm, 530mm, 540mm, 560mm, 570mm, 580mm, 590mm, 600mm, 610mm, 620mm, 630mm or 640mm as needed. In other embodiments, when the sliding amount of the slideway 7 is 0, the distance between any adjacent ear picking devices of the fixed ear picking mechanism 100 and the ear picking devices of the movable ear picking mechanism 200 can also be set to other values ​​according to actual needs.

[0081] Optionally, a rotatable lower blade assembly 16 is provided below each ear picking device of the fixed ear picking mechanism 100; a rotatable lower blade assembly 16 is provided below each ear picking device of the movable ear picking mechanism 200. The lower blade assembly 16 includes a blade transmission mechanism and a bottom blade connected to the blade transmission mechanism. By providing a blade assembly below each ear picking device, the straw entering the feeding space of the ear picking device can be cut into small sections, which is convenient for returning the straw to the field.

[0082] Please refer to Figures 1 to 3 The following description will be made by taking an example in which the fixed ear picking mechanism 100 of a corn cutting platform with adjustable row spacing includes two ear picking devices, and the movable ear picking mechanism 200 includes multiple ear picking devices.

[0083] Among them, the two ear picking devices of the fixed ear picking mechanism 100 are both middle ear picking devices 5; one of the multiple ear picking devices of the movable ear picking mechanism 200 is the first ear picking device 8, and the rest are the second ear picking devices 9. The first ear picking device 8 is closer to the middle ear picking device 5 than the second ear picking device 9.

[0084] Optionally, the rear end of the ear picking bracket 1 is provided with a transmission shaft extending in the width direction of the ear picking bracket 1, and the ear picking bracket 1 is provided with a transmission drive mechanism for driving the transmission shaft to rotate circumferentially, and the middle ear picking device 5, the first ear picking device 8 and the second ear picking device 9 are all connected to the transmission shaft in a transmission manner, and the first ear picking device 8 and the second ear picking device 9 are connected to the transmission shaft in an axial sliding manner. With such an arrangement, the fixed ear picking mechanism 100 and the two movable ear picking mechanisms 200 can be driven simultaneously by the transmission mechanism. In other embodiments, a transmission assembly can also be separately provided as needed to drive the ear picking device of the fixed ear picking mechanism 100 to work, and a transmission assembly can be separately provided to drive each ear picking device of each movable ear picking mechanism 200 to work.

[0085] Specifically, the corn cutting stand with adjustable row spacing also includes a middle straw divider 2, a width adjustable straw divider 3 and a side straw divider 4. Among them, the middle straw divider 2 is fixed to the middle part of the front end of the ear picking bracket 1; width adjustable straw dividers 3 are arranged on both sides of the middle straw divider 2, two middle ear picking devices 5 are respectively located between the middle straw divider 2 and the two width adjustable straw dividers 3, and the middle ear picking devices 5 are respectively connected to the adjacent middle straw dividers 2 and the width adjustable straw dividers 3; two side straw dividers 4 are arranged in parallel along the width direction of the ear picking bracket 1 on the side of each width adjustable straw divider 3 away from the middle straw divider 2, and the adjacent width adjustable straw dividers 3 are connected to the side straw dividers 4 through the first ear picking device 8, and the two adjacent side straw dividers 4 are connected through the second ear picking device 9. Among them, when the corn cutting platform with adjustable row spacing is working, each grain divider corresponds to the gap in the middle of the row spacing, so as to divert the corn on both sides to the feeding space of the ear picking devices on both sides, respectively, to ensure that the ear picking operation will not be missed. In addition, when the linear drive mechanism drives the movable ear picking mechanism 200 to move, the width-adjustable grain divider 3 can adapt to the change in the distance between the first ear picking device 8 in the movable ear picking mechanism 200 and the middle ear picking device 5 in the fixed ear picking mechanism 100.

[0086] It should be noted that the specific structures of the middle grain divider 2, the width-adjustable grain divider 3, the side grain divider 4, the middle ear picking device 5, the first ear picking device 8 and the second ear picking device 9 in this embodiment are the prior art in this field, and the connection and transmission relationship between the adjacent grain dividers and the ear picking devices is also the conventional technology in this field, and their specific structures are not described in detail here. The width-adjustable grain divider 3 can adopt the grain divider in the patent number 202310873816.4, and the patent name is "An adjustable grain divider and harvester".

[0087] Optionally, the transmission drive mechanism includes a hydraulic motor 10 and a T-type transmission box 11, and the hydraulic motor 10 and the T-type transmission box 11 are both fixed in the middle of the rear end of the ear picking bracket 1, and the output shaft of the hydraulic motor 10 is connected to the input shaft of the T-type transmission box 11. The axes of the two output shafts of the T-type transmission box 11 extend along the width direction of the ear picking bracket 1 and are respectively connected to a transmission shaft. The hydraulic motor 10 and the T-type transmission box 11 are used to realize power transmission. Compared with driving by the engine, the chain and belt drive transmitted from the engine are eliminated, and then the sprocket and pulley installation position at the rear end of the cutting platform can be removed, which shortens the length and width of the whole vehicle and the cutting platform, and is more conducive to coping with corn harvesting in different regions.

[0088] As an alternative, the transmission drive mechanism can also be any power device with a relatively small volume and capable of transmitting power, such as an electric motor. When the transmission drive mechanism adopts an electric motor, the output shaft of the electric motor is arranged in parallel with the transmission shaft, and the power transmission is realized through a primary reduction transmission mechanism.

[0089] The transmission shaft includes a first transmission shaft 12 and a second transmission shaft 13, at least the second transmission shaft 13 is a hexagonal transmission shaft, the first transmission shaft 12 and the second transmission shaft 13 are coaxially arranged, one end of the first transmission shaft 12 is connected to the output shaft of the T-type transmission box 11, and the other end is connected to one end of the second transmission shaft 13 through a sprocket hoop, the middle ear picking device 5 is connected to the first transmission shaft 12, the first ear picking device 8 and the second ear picking device 9 are connected to the second transmission shaft 13, the transmission shaft adopts a multi-section parallel structure to avoid the damage to the transmission shaft caused by long-term use due to the length of the transmission shaft being too long, and the second transmission shaft 13 adopts a hexagonal transmission shaft to realize the axial sliding connection between the first ear picking device 8 and the second ear picking device 9 and the second transmission shaft 13, and at the same time, the circumferential rotation of the second transmission shaft 13 can be realized to transmit power to the first ear picking device 8 and the second ear picking device 9. Among them, the sprocket hoop is a prior art, and its specific structure is not repeated here. In addition, the sprocket hoop can also be replaced by a coupling. In other embodiments, the cross-section of the second transmission shaft 13 may also be set to a polygonal shape such as a quadrilateral, a pentagon, an octagon, etc.; it may also be set to a D-shape or other shapes.

[0090] In other embodiments, the transmission drive mechanism includes a hydraulic motor 10 and a drive shaft, the hydraulic motor 10 is transmission-connected to one end of the drive shaft, and the drive shaft is transmission-connected to each ear picking device of the fixed ear picking mechanism 100 and each ear picking device of each movable ear picking mechanism 200, respectively. In this case, each ear picking device of the fixed ear picking mechanism 100 and each ear picking device of each movable ear picking mechanism 200 can be driven simultaneously by one shaft. Among them, each ear picking device of the movable ear picking mechanism 200 can slide along the drive shaft.

[0091] The rear end of the ear picking bracket 1 is rotatably provided with an auger 14 arranged parallel to the transmission shaft. The auger 14 is connected to the transmission shaft. The auger 14 and the transmission shaft can adopt chain drive, belt drive, gear drive or transmission box drive, etc. The power is directly transmitted to the auger 14 through the transmission shaft. The connection distance is short, the power transmission is stable and safe, and the need to transmit the engine to the auger 14 is avoided.

[0092] The width-adjustable straw divider 3 includes a keel 3-1 located in the middle and side panels 3-2 located on both sides of the keel 3-1. The side panels 3-2 are hinged to the keel 3-1. The two side panels 3-2 are respectively hinged to the middle ear picking device 5 and the first ear picking device 8 through waist-shaped holes. The side panels 3-2 of the width-adjustable straw divider 3 are respectively connected to the middle ear picking device 5 and the first ear picking device 8 by being hinged through waist-shaped holes. The width of the width-adjustable straw divider 3 can be adjusted as the row spacing is adjusted, which can avoid the problem that the corn cannot be fully introduced into the middle ear picking device 5 and the first ear picking device 8 due to the separation of the middle ear picking device 5 and the first ear picking device 8.

[0093] In this embodiment, the power transmission connection method of the corn harvesting platform with adjustable row spacing is that the hydraulic motor 10 is directly connected to the T-type transmission box 11 to complete the power transmission; the T-type transmission box 11 completes the power transmission with the two first transmission shafts 12 through the sprocket chain; the two first transmission shafts 12 transmit power through the hexagonal clutch on the middle ear picking device 5, and the first transmission shaft 12 transmits power to the second transmission shaft 13 through the sprocket chain; the second transmission shaft 13 completes the power transmission through the hexagonal clutch of the first ear picking device 8 and the second ear picking device 9; the second transmission shaft 13 transmits power to the auger 14 through a chain connection.

[0094] The row spacing is adjustable by extending and retracting the oil cylinder 15. One end of the oil cylinder 15 is connected to the ear picking bracket 1. When it is extended and retracted, it will push the slide 7 to move horizontally on the cross beam 6. The inner surface of the slide 7 is connected to the slider 17 by countersunk bolts, which reduces the friction of the slide 7 moving on the cross beam 6 and reduces wear. The first ear picking device 8 and the second ear picking device 9 are connected to the slide 7 by bolts respectively. The width-adjustable grain divider 3 is connected to the side grain divider 4 by the first ear picking device 8, and the two adjacent side grain dividers 4 are connected by the second ear picking device 9. When the oil cylinder 15 is extended and retracted, the first ear picking device 8 and the second ear picking device 9 are connected to the side grain divider 4 by the second ear picking device 9. The ear picking device 9 and the side grain divider 4 make the same vector motion with the slide 7; because the hydraulic motor 10 and the T-type transmission box 11 are fixed on the ear picking bracket 1, and the first transmission shaft 12 and the second transmission shaft 13 are respectively connected by sprocket clamps, when the slide 7 moves, the first transmission shaft 12 and the second transmission shaft 13 do not move, that is to say, the first ear picking device 8, the second ear picking device 9 and the second transmission shaft 13 make relative motion, and it can also be regarded as the first ear picking device 8, the second ear picking device 9 sliding on the second transmission shaft 13. Among them, the width-adjustable straw divider 3 adopts a hinge-adjustable mode. Specifically, the width-adjustable straw divider 3 includes a keel 3-1 located in the middle and side panels 3-2 located on both sides of the keel 3-1. The side panels 3-2 are hinged to the keel 3-1 through hinges, and the two side panels 3-2 are respectively hinged to the middle ear picking device 5 and the first ear picking device 8 through waist-shaped holes. Because the middle ear picking device 5 does not slide, and the first ear picking device 8 and the second ear picking device 9 make relative motion, the width of the width-adjustable straw divider 3 changes with the movement of the right slide 7; the sprocket installation position is greater than the maximum sliding distance of the second ear picking device 9, and no interference is formed.

[0095] This embodiment discloses a harvester, including the corn cutting table with adjustable row spacing in the above embodiment.

[0096] The utility model has a simple structure and a reasonable design, and is designed with an adjustable row spacing, which is convenient for cross-region operation and is beneficial to the harvest of corns planted with different row spacings and large and small row spacings, and can effectively improve user satisfaction.

[0097] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A corn header with adjustable row spacing, characterized in that: include: Ear picking support (1); A fixed ear picking mechanism (100) comprising at least one ear picking device fixedly mounted on the ear picking bracket (1); Two slideways (7) are both slidably arranged on the ear picking bracket (1) and are respectively located on two sides of the fixed ear picking mechanism (100); Two movable ear picking mechanisms (200) are arranged in one-to-one correspondence with the two slideways (7), and the movable ear picking mechanism (200) comprises at least one ear picking device fixedly mounted on the corresponding slideway (7); Two linear drive mechanisms are arranged in one-to-one correspondence with the two slideways (7); one end of the linear drive mechanism is connected to the ear picking bracket (1), and the other end of the linear drive mechanism is connected to the corresponding slideway (7), and is used to drive the corresponding slideway (7) to slide relative to the ear picking bracket (1).

2. The corn header with adjustable row spacing according to claim 1, characterized in that: A crossbeam (6) extending along the width direction of the ear picking bracket (1) is provided at the rear end of the ear picking bracket (1); the two slideways (7) are both slidably connected to the crossbeam (6); and the linear drive mechanism is used to drive the corresponding slideway (7) to move back and forth along the length direction of the crossbeam (6).

3. The corn header with adjustable row spacing according to claim 2, characterized in that: The corn cutting platform with adjustable row spacing also includes a slider (17), each slideway (7) is fixedly provided with a plurality of sliders (17), the plurality of sliders (17) are slidably fitted with the crossbeam (6), and the sliders (17) are made of a self-lubricating material.

4. The corn header with adjustable row spacing according to claim 3, characterized in that: The cross section of the cross beam (6) is square, the cross section of the slideway (7) is U-shaped, the slideway (7) comprises a cross plate and two side plates (3-2) respectively connected to both sides of the cross plate, and the cross plate and each side plate (3-2) are provided with the sliding block (17).

5. The corn header with adjustable row spacing according to claim 1, characterized in that: The number of the ear picking devices included in the fixed ear picking mechanism (100) is less than or equal to three; the number of the ear picking devices included in the movable ear picking mechanism (200) is less than or equal to three.

6. The corn header with adjustable row spacing according to claim 1, characterized in that: A lower blade-flicking assembly (16) is provided below each of the ear-picking devices of the fixed ear-picking mechanism (100); A lower blade-flicking assembly (16) is provided below each of the ear-picking devices of the movable ear-picking mechanism (200).

7. The corn header with adjustable row spacing according to claim 1, characterized in that: The fixed ear picking mechanism (100) comprises two or more ear picking devices, and the distance between any two adjacent ear picking devices in the fixed ear picking mechanism (100) is 380 mm-580 mm; and / or, The movable ear picking mechanism (200) comprises two or more ear picking devices, and the distance between any two adjacent ear picking devices in the movable ear picking mechanism (200) is 380 mm-580 mm.

8. The corn header with adjustable row spacing according to claim 1, characterized in that: The fixed ear picking mechanism (100) comprises two or more ear picking devices, and the distance between any two adjacent ear picking devices in the fixed ear picking mechanism (100) is 400 mm, 420 mm, 450 mm, 500 mm and 550 mm; and / or, The movable ear picking mechanism (200) comprises two or more ear picking devices, and the distance between any two adjacent ear picking devices in the movable ear picking mechanism (200) is 400 mm, 420 mm, 450 mm, 500 mm and 550 mm.

9. The corn header with adjustable row spacing according to claim 1, characterized in that: The minimum sliding amount of the slideway (7) is 0, and when the sliding amount of the slideway (7) is 0, the distance between the movable ear picking mechanism (200) and the fixed ear picking mechanism (100) is the minimum; The maximum sliding distance of the slideway (7) is 100mm-300mm.

10. The corn header with adjustable row spacing according to claim 9, characterized in that: The maximum sliding distance of the slideway (7) is 150 mm, 200 mm or 250 mm.

11. The corn header with adjustable row spacing according to claim 9, characterized in that: When the sliding amount of the slideway (7) is 0, the distance between the ear picking devices of any adjacent fixed ear picking mechanism (100) and the ear picking devices of the movable ear picking mechanism (200) is 450 mm-650 mm.

12. The corn header with adjustable row spacing according to claim 11, characterized in that: When the sliding amount of the slideway (7) is 0, the distance between the ear picking devices of any adjacent fixed ear picking mechanism (100) and the ear picking devices of the movable ear picking mechanism (200) is 500 mm, 550 mm or 650 mm.

13. The corn header with adjustable row spacing according to any one of claims 1 to 12, characterized in that: The fixed ear picking mechanism (100) comprises two ear picking devices, and both of the ear picking devices are middle ear picking devices (5); The movable ear picking mechanism (200) comprises a plurality of ear picking devices, one of which is a first ear picking device (8), and the others are second ear picking devices (9). The first ear picking device (8) is closer to the middle ear picking device (5) relative to each of the second ear picking devices (9).

14. The corn header with adjustable row spacing according to claim 13, characterized in that: The rear end of the ear picking bracket (1) is provided with a transmission shaft extending in the width direction of the ear picking bracket (1), and the ear picking bracket (1) is provided with a transmission drive mechanism for driving the transmission shaft to rotate circumferentially, and the middle ear picking device (5), the first ear picking device (8) and the second ear picking device (9) are all connected to the transmission shaft in a transmission manner, and the first ear picking device (8) and the second ear picking device (9) are connected to the transmission shaft in an axial sliding manner.

15. The corn header with adjustable row spacing according to claim 14, characterized in that: The corn header with adjustable row spacing also includes: A middle grain divider (2) fixed to the middle of the front end of the ear picking bracket (1); A width-adjustable crop divider (3), wherein the width-adjustable crop divider (3) is provided on both sides of the middle crop divider (2), and two middle ear-picking devices (5) are respectively located between the middle crop divider (2) and the two width-adjustable crop dividers (3), and the middle ear-picking devices (5) are respectively connected to the adjacent middle crop divider (2) and the width-adjustable crop divider (3); Side grain dividers (4), each of the width-adjustable grain dividers (3) is provided with two side grain dividers (4) in parallel along the width direction of the ear picking bracket (1) on a side away from the middle grain divider (2), adjacent width-adjustable grain dividers (3) and side grain dividers (4) are connected via the first ear picking device (8), and adjacent two side grain dividers (4) are connected via the second ear picking device (9).

16. The corn header with adjustable row spacing according to claim 15, characterized in that: The transmission drive mechanism comprises a hydraulic motor (10) and a T-shaped transmission box (11); the hydraulic motor (10) and the T-shaped transmission box (11) are both fixed at the middle of the rear end of the ear picking support (1); the output shaft of the hydraulic motor (10) is transmission-connected to the input shaft of the T-shaped transmission box (11); the axes of the two output shafts of the T-shaped transmission box (11) extend along the width direction of the ear picking support (1) and are respectively transmission-connected to one of the transmission shafts.

17. The corn header with adjustable row spacing according to claim 16, characterized in that: The transmission shaft comprises a first transmission shaft (12) and a second transmission shaft (13); the first transmission shaft (12) and the second transmission shaft (13) are coaxially arranged; one end of the first transmission shaft (12) is transmission-connected to the output shaft of the T-type transmission box (11); the other end of the first transmission shaft (12) is transmission-connected to one end of the second transmission shaft (13) via a sprocket clamp; the middle ear picking device (5) is transmission-connected to the first transmission shaft (12); and the first ear picking device (8) and the second ear picking device (9) are both transmission-connected to the second transmission shaft (13).

18. The corn header with adjustable row spacing according to claim 17, characterized in that: The second transmission shaft (13) is a hexagonal transmission shaft.

19. The corn header with adjustable row spacing according to claim 15, characterized in that: The rear end of the ear picking support (1) is rotatably provided with an augers (14) arranged parallel to the transmission shaft, and the augers (14) are in transmission connection with the transmission shaft.

20. The corn header with adjustable row spacing according to claim 15, characterized in that: The width-adjustable grain divider (3) comprises a keel (3-1) located in the middle and side panels (3-2) located on both sides of the keel (3-1), the side panels (3-2) being hinged to the keel (3-1), and the two side panels (3-2) being hinged to the middle ear picking device (5) and the first ear picking device (8) respectively through waist-shaped holes.

21. The corn header with adjustable row spacing according to claim 15, characterized in that: The linear drive mechanism is an oil cylinder (15).

22. A harvester, characterized in that: A corn header with adjustable row spacing comprising the corn header according to any one of claims 1 to 21.

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