Ear picking box and header of corn harvester

Abstract

The utility model provides a corn harvester ear picking box and header, the ear picking box is connected with a stem pulling roller and a seedling pulling chain, a stem pulling roller driving mechanism is used for driving an upper stem pulling roller and a lower stem pulling roller, and the stem pulling roller driving mechanism comprises a driving shaft used for inputting power to the stem pulling roller driving mechanism; the intermediate shaft is connected with the driving shaft; the lower stem pulling roller driving unit is connected with the middle shaft, driving power is provided for the lower stem pulling roller driving unit through the middle shaft, and then the lower stem pulling roller is driven to rotate. The upper stem pulling roller driving unit comprises an idler shaft, and the intermediate shaft is connected with the idler shaft to provide driving force for the upper stem pulling roller driving unit so as to drive the upper stem pulling roller and the lower stem pulling roller to rotate in opposite directions; and the seedling pulling chain driving mechanism is in transmission connection with the upper stem pulling roller driving unit and drives the seedling pulling chain. According to the ear picking box and the header of the harvester, a stem pulling roller and a seedling pulling chain driving mechanism are integrated, the transmission function is achieved through a single driving shaft, and the ear picking box and the header have the advantages of being compact in structure, low in manufacturing cost and high in reliability.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to an ear picking box and a cutting table of a corn harvester. Background Art

[0002] The operation units of the cutting table of the corn harvesters commonly seen in the market at present can be roughly disassembled into: a cutting table mounting frame, a cutting table driving main shaft, paired corn ear picking rollers, an ear picking box for transmitting the driving shaft power, a reel chain for guiding the corn plants, and a reel box for driving the reel chain to operate, etc. Among them, the way for the ear picking box to receive the power of the cutting table driving main shaft is mostly independent sprocket drive. To drive multiple ear picking boxes, multiple groups of transmission sprockets need to be set, and the structure is relatively complex, causing many inconveniences to the subsequent maintenance work; and affected by the harsh field operation environment, the chain is extremely easy to loosen and jam, further reducing the operation reliability of the power transmission of the ear picking box. The power transmission between the ear picking box and the reel box is limited by the component layout space and processing accuracy, and mostly uses chain drive or tube shaft drive with a relatively large fitting clearance, further affecting the structural rationality and operation reliability of the cutting table working unit, and increasing a certain amount of maintenance cost for users.

[0003] Therefore, there is an urgent need to provide an ear picking box to solve the problems of low component life and difficult maintenance during the independent chain drive of the single ear picking box during the ear picking process of the corn harvester. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an ear picking box and a cutting table of a corn harvester. The ear picking box integrates a pulling stem roller and a reel chain driving component, realizes single driving force input, and multi-point output of double pulling stem rollers and side reel power. The structure is compact, the manufacturing cost is low, and the reliability is high.

[0005] According to one aspect of the utility model, an ear picking box of a corn harvester is provided. The ear picking box is connected to a pulling stem roller and a reel chain. The pulling stem roller driving mechanism is used to drive an upper pulling stem roller and a lower pulling stem roller. The pulling stem roller driving mechanism includes a driving shaft, an intermediate shaft driving unit, a lower pulling stem roller driving unit, an upper pulling stem roller driving unit, and a reel chain driving mechanism. The driving shaft is used to input power to the pulling stem roller driving mechanism; the intermediate shaft is connected to the driving shaft; the lower pulling stem roller driving unit is connected to the intermediate shaft, and the driving power is provided to the lower pulling stem roller driving unit through the intermediate shaft, so as to drive the lower pulling stem roller to rotate; the upper pulling stem roller driving unit includes an idler shaft, and the intermediate shaft is connected to the idler shaft to provide driving force to the upper pulling stem roller driving unit, so as to drive the upper pulling stem roller to rotate in the direction opposite to that of the lower pulling stem roller; the reel chain driving mechanism is in transmission connection with the upper pulling stem roller driving unit to drive the reel chain.

[0006] The ear - picking box of the corn harvester provided by the utility model integrates the pulling - stem roller drive unit and the reel chain drive mechanism. By setting the form of the ear - picking box, a single driving force transmission is realized, that is, after the power is transmitted from the drive shaft to the ear - picking box, it can drive the upper and lower pulling - stem rollers and the reel chain to work, with a compact structure and high reliability.

[0007] Preferably, the lower pulling - stem roller drive unit includes a lower pulling - stem roller output shaft, and the intermediate shaft is connected to the lower pulling - stem roller output shaft to provide power to the lower pulling - stem roller output shaft.

[0008] Preferably, the upper pulling - stem roller drive unit includes an upper pulling - stem roller output shaft, and the idler shaft is connected to the upper pulling - stem roller output shaft to provide power to the upper pulling - stem roller output shaft.

[0009] Preferably, the reel chain drive mechanism includes: a sprocket intermediate shaft, the sprocket intermediate shaft is connected to the second pulling - stem roller drive unit; a sprocket output shaft, the sprocket output shaft is connected to the sprocket intermediate shaft to provide power to the reel chain, and then drive the reel chain to rotate to realize ear - reeling.

[0010] Preferably, the intermediate shaft and the drive shaft are connected by a first bevel gear and a second bevel gear, and the first bevel gear rotates coaxially with the drive shaft; the intermediate shaft drive unit includes a second bevel gear, and the second bevel gear rotates coaxially with the intermediate shaft; the second bevel gear is connected to the first bevel gear.

[0011] Preferably, the intermediate shaft drive unit includes a first straight gear, an idler on the idler shaft meshes with the first straight gear, a second straight gear is arranged on the upper pulling - stem roller output shaft, the second straight gear rotates coaxially with the upper pulling - stem roller output shaft, and the idler meshes with the second straight gear.

[0012] Preferably, the second straight gear is connected to the lower pulling - stem roller output shaft, a third straight gear is arranged on the lower pulling - stem roller output shaft, the third straight gear rotates coaxially with the lower pulling - stem roller output shaft, and the third straight gear meshes with the second straight gear.

[0013] Preferably, the reel chain drive mechanism is connected to the upper pulling - stem roller drive unit through a spline shaft; the sprocket intermediate shaft is connected to the upper pulling - stem roller output shaft through a spline shaft, a fourth straight gear is arranged on the spline shaft, and the spline shaft is connected to the upper pulling - stem roller output shaft through the fourth straight gear.

[0014] Preferably, a fifth straight gear is arranged on the sprocket intermediate shaft, the fifth straight gear is connected to the spline shaft and rotates with the spline shaft; a third bevel gear is arranged on the sprocket intermediate shaft, a fourth bevel gear is arranged on the sprocket output shaft, and the fourth bevel gear meshes with the third bevel gear.

[0015] Preferably, a reel sprocket is provided on the sprocket output shaft, and the reel sprocket is connected to the reel chain to drive the reel chain to rotate; a safety clutch is provided on the sprocket output shaft, and the safety clutch is arranged above the reel sprocket.

[0016] By providing a safety clutch, the safety and reliable operation of the internal components of the ear picking box during the harvesting process are ensured.

[0017] The present application also provides a corn harvester cutting table, which includes the corn harvester ear picking box as described above. The number of the ear picking boxes is at least 2, and the ear picking boxes are connected by a coupling.

[0018] For the ear picking box of a corn harvester provided by the present utility model, the drive shaft transmits power to the pulling roller drive mechanism and the reel chain drive mechanism inside the ear picking box, thereby realizing the simultaneous operation of the pulling roller and the reel chain, changing the original form that the reel chain needs to be provided with a separate drive assembly. The ear picking box has a high integration degree and strong structural compactness. For the corn harvester cutting table equipped with such an ear picking box, by serially arranging multiple individual ear picking boxes, that is, by using the coupling to connect the ear picking boxes, only a single drive shaft is needed to drive multiple ear picking boxes, and there is no need to separately set drive sprockets and chains for a single ear picking box, which greatly improves the operation reliability of the cutting table and extends the overall maintenance period of the cutting table. The layout of the cutting table is more reasonable and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model in detail with reference to the drawings and specific embodiments:

[0020] Figure 1 It is a three-dimensional view of a corn harvester cutting table provided by an embodiment of the present utility model.

[0021] Figure 2 It is a three-dimensional view of a corn harvester ear picking box provided by an embodiment of the present utility model.

[0022] Figure 3 It is a cross-section of a corn harvester ear picking box provided by an embodiment of the present utility model Figure 1 .

[0023] Figure 4 It is a cross-section of a corn harvester ear picking box provided by an embodiment of the present utility model Figure 2 .

[0024] Explanation of the reference numerals in the drawings:

[0025] 200 - Header; 1 - Ear - picking box; 10 - Pull - stem roller drive mechanism; 11 - Drive shaft; 12 - Intermediate - shaft drive unit; 120 - Intermediate shaft; 121 - First bevel gear; 122 - Second bevel gear; 123 - First spur gear; 13 - Lower pull - stem roller drive unit; 130 - Lower pull - stem roller output shaft; 131 - Third spur gear; 14 - Upper pull - stem roller drive unit; 140 - Upper pull - stem roller output shaft; 141 - Second spur gear; 150 - Idler shaft; 151 - Idler gear; 20 - Reel drive mechanism; 210 - Sprocket intermediate shaft; 211 - Fifth spur gear; 212 - Third bevel gear; 220 - Sprocket output shaft; 221 - Fourth bevel gear; 222 - Reel sprocket; 230 - Spline shaft; 231 - Fourth spur gear; 30 - Safety clutch; 40 - Coupling. Detailed implementation mode

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] To make the drawings concise, only the parts related to the present invention are schematically shown in each drawing, and they do not represent the actual structure of the product. Additionally, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation.

[0028] It should also be further understood that the term "and / or" used in the description of this application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0029] In this article, it should be noted that unless otherwise clearly specified and defined, 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0032] See also Figure 1 The embodiment of the utility model provides a corn harvester cutting table, which includes a straw chain, a stem pulling roller, and an ear conveying trough. During the harvesting process of the corn harvester, the front roller cuts the corn plants. When the straw chain conveys the corn plants to the deep of the cutting table, the stem pulling roller pulls the corn ears on the corn stalks, and the ear conveying trough arranged on the side of the stem pulling roller relative to the transverse axis of the cutting table transports the picked corn ears to the rear for further processing. Since the cutting table provided by the utility model has multiple functional components to realize corn ear picking, the corn ear picking box connects the stem pulling roller and the straw chain in series to reduce the exposure of parts. In this embodiment, the cutting table provided includes at least two corn harvester ear picking boxes, which are connected by a coupling 40.

[0033] During the corn ear picking process of the corn harvester, the ear picking box provides driving force for the upper stem roller, the lower stem roller and the straw chain to achieve corn ear picking.

[0034] See also Figures 2 to 4 As shown, the utility model provides a corn harvester ear picking box, the ear picking box is connected to the stem pulling roller and the straw chain, the stem pulling roller driving mechanism 10 is used to drive the upper stem pulling roller and the lower stem pulling roller to pick the ears on the corn stalks, wherein the stem pulling roller driving mechanism 10 includes: a driving shaft 11 for inputting power to the stem pulling roller driving mechanism 10, an intermediate shaft driving unit 12, a lower stem pulling roller driving unit 13, and an upper stem pulling roller driving unit 14. Specifically, the intermediate shaft 120 is connected to the driving shaft 11; the lower stem pulling roller driving unit 13 is connected to the intermediate shaft 120; in the process of driving the lower stem pulling roller to rotate, the intermediate shaft 120 provides driving power to the lower stem pulling roller driving unit 13. The intermediate shaft 120 is connected to the idler shaft 150 to provide driving force to the upper stem pulling roller driving unit 14, and by setting the idler shaft 150, the upper stem pulling roller is driven to rotate in the opposite direction of the lower stem pulling roller. The straw pulling chain driving mechanism 20 that drives the straw pulling chain is transmission-connected to the upper stem pulling roller driving unit 14. In this embodiment, power is transmitted from the drive shaft 11 to the inside of the ear picking box, and the intermediate shaft 120 drive unit 12 receives the power of the drive shaft 11, and further transmits the power to the lower stem roller drive unit 13, the upper stem roller drive unit 14, and the straw chain drive mechanism 20 that is transmission-connected to the upper stem roller drive unit 14.

[0035] In this embodiment, the pulling rollers of the corn ear harvester need to appear in pairs during the ear harvesting process, and the rotation directions between the pulling rollers are opposite. Then, by pulling the corn straws, ear harvesting is achieved. Therefore, the rotation directions of the upper pulling roller and the lower pulling roller need to be opposite. Specifically, in the ear harvesting box, the rotation power directions provided by the upper pulling roller driving unit 14 and the lower pulling roller driving unit 13 are opposite. To achieve this effect, when the power is transmitted to the upper pulling roller driving unit 14 through the intermediate shaft 120, an idler shaft 150 is provided, and the power transmitted by the intermediate shaft 120 is reversed through the idler shaft 150, so that the upper pulling roller and the lower pulling roller can rotate in opposite directions.

[0036] The ear harvesting box of the corn harvester provided in this embodiment integrates the pulling roller driving mechanism 10 and the reel chain driving mechanism 20 to achieve single driving force transmission, that is, after the power is transmitted from the driving shaft 11 to the ear harvesting box, it can drive the upper and lower pulling rollers and the reel chain to work, with a compact structure and high reliability.

[0037] In the embodiment, the specific transmission connection mode of the lower pulling roller driving unit 13 and the upper pulling roller driving unit 14 is as follows: the lower pulling roller driving unit 13 includes a lower pulling roller output shaft 130, the upper pulling roller driving unit 14 includes an upper pulling roller output shaft 140, the intermediate shaft 120 is connected to the lower pulling roller output shaft 130 to provide power to the lower pulling roller output shaft 130; the idler shaft 150 is connected to the upper pulling roller output shaft 140 to provide power to the upper pulling roller output shaft 140. The lower pulling roller output shaft 130 is connected to the lower pulling roller, and the upper pulling roller output shaft 140 is connected to the upper pulling roller, thereby driving the upper pulling roller and the lower pulling roller to rotate respectively. According to the setting of the idler shaft 150 in the ear harvesting box above, the rotation direction of the upper pulling roller is opposite to that of the lower pulling roller. When the corn straw passes between the upper pulling roller and the lower pulling roller, ear harvesting is achieved. Since the power is transmitted to the upper pulling roller driving unit 14 to drive the upper pulling roller to rotate, compared with the power transmission process of transmitting the power to the lower pulling roller driving unit 13 to drive the lower pulling roller to rotate, the power transmission to the upper pulling roller driving unit 14 adds the idler shaft 150 to achieve power reversal. Therefore, the rotation directions of the upper pulling roller and the lower pulling roller are opposite, and the upper and lower pulling rollers cooperate to achieve ear harvesting.

[0038] See Figure 3 、 Figure 4, the reel chain drive mechanism 20 includes: a sprocket intermediate shaft 210 connected to the upper pull roller drive unit 14, a sprocket output shaft 220 connected to the sprocket intermediate shaft 210. The sprocket output shaft 220 provides power to the reel chain, driving the reel chain to rotate to achieve reaping. During the process of power transmission to the reel chain, by setting the sprocket output shaft 220, the power is output to the reel chain to achieve the diversion of corn straw. The sprocket output shaft 220 is connected to the sprocket intermediate shaft 210, and the power of the upper pull roller drive unit 14 is transmitted to the sprocket intermediate shaft 210, thereby driving the sprocket output shaft 220 to rotate. The reel chain works synchronously with the upper pull roller and the lower pull roller.

[0039] See Figure 3 , Figure 4 , the intermediate shaft 120 is connected to the drive shaft 11 through a first bevel gear 121 and a second bevel gear 122. The first bevel gear 121 rotates coaxially with the drive shaft 11; the intermediate shaft drive unit 12 includes the second bevel gear 122, and the second bevel gear 122 rotates coaxially with the intermediate shaft 120; the second bevel gear 122 is connected to the first bevel gear 121. To achieve the power transmission from the drive shaft 11 to the lower pull roller drive unit 13, the intermediate shaft 120 is power-connected to the drive shaft 11 through the first bevel gear 121 and the second bevel gear 122. The first bevel gear 121 is provided on the drive shaft 11 and rotates coaxially with the drive shaft 11; the second bevel gear 122 is provided on the intermediate shaft 120 and rotates synchronously with the intermediate shaft 120. The first bevel gear 121 meshes with the second bevel gear 122, and the power of the drive shaft 11 is transmitted to the intermediate shaft 120.

[0040] See Figure 3 , the intermediate shaft drive unit 12 includes a first straight gear. An idler 151 on the idler shaft 150 meshes with the first straight gear 123. A second straight gear 141 is provided on the upper pull roller output shaft 140, and the second straight gear 141 rotates coaxially with the upper pull roller output shaft 140. The idler 151 meshes with the second straight gear 141. When transmitting power to the upper pull roller output shaft 140, the first straight gear 123 on the intermediate shaft 120 meshes with the idler 151 to achieve power transmission. The idler 151 then meshes with the second straight gear 141 provided on the pull roller output shaft, and the power is transmitted to the upper pull roller output shaft 140 from here, thereby driving the upper pull roller to rotate.

[0041] See Figure 4 , the second straight gear 141 is connected to the lower pull roller output shaft 130. A third straight gear 131 is provided on the lower pull roller output shaft 130, and the third straight gear 131 rotates coaxially with the lower pull roller output shaft 130. The third straight gear 131 meshes with the second straight gear 141. The third straight gear 131 provided on the lower pull roller output shaft 130 rotates driven by the second straight gear 141 provided on the intermediate shaft 120, thereby driving the lower pull roller.

[0042] See Figure 3 , the reel drive mechanism 20 is connected to the upper pull roller drive unit 14 through a spline shaft 230; the sprocket intermediate shaft 210 is connected to the upper pull roller output shaft 140 through a spline shaft, and a fourth spur gear 231 is provided on the spline shaft 230. The spline shaft 230 is connected to the upper pull roller output shaft 140 through the fourth spur gear 231. During the process of driving the reel to rotate, the power is transmitted from the upper pull roller output shaft 140 to the reel drive mechanism 20. Specifically, in the reel drive mechanism 20, the sprocket intermediate shaft 210 is connected to the spline shaft 230, and the fourth spur gear 231 is provided on the spline shaft 230 and is connected to the upper pull roller output shaft 140, thereby transmitting the power from the upper pull roller output shaft 140 to the sprocket intermediate shaft 210.

[0043] See Figure 4 , a fifth spur gear 211 is provided on the sprocket intermediate shaft 210. The fifth spur gear 211 is connected to the spline shaft 230 and rotates with the spline shaft 230; a third bevel gear 212 is provided on the sprocket intermediate shaft 210, and a fourth bevel gear 221 is provided on the sprocket output shaft 220. The fourth bevel gear 221 meshes with the third bevel gear 212. To transmit the power to the sprocket intermediate shaft 210, the fifth spur gear 211 on the sprocket intermediate shaft 210 is connected to the spline shaft 230, thereby realizing the power transmission of the sprocket intermediate shaft 210. The fourth bevel gear 221 provided on the sprocket output shaft 220 meshes with the third bevel gear 212 provided on the sprocket intermediate shaft 210, and the sprocket output shaft 220 rotates with the sprocket intermediate shaft 210, thereby realizing the power transmission from the drive shaft 11 to the sprocket output shaft 220.

[0044] See Figure 2 , Figure 4 , a reel sprocket 222 is provided on the sprocket output shaft 220. The reel sprocket 222 is connected to the reel and drives the reel to rotate; a safety clutch 30 is provided on the sprocket output shaft 220. The safety clutch 30 is provided above the reel sprocket 222. The reel sprocket 222 provided on the sprocket output shaft 220 rotates synchronously with the sprocket output shaft 220 and drives the reel to rotate, achieving the purpose of guiding the corn straw. In this embodiment, a safety clutch 30 is configured above the sprocket output shaft 220, that is, above the reel sprocket 222, to ensure the safety and reliability of the ear picking box during the process of driving the reel to rotate and improve the service life of the ear picking box.

[0045] In the embodiment provided by the present utility model, through the form that the ear picking box drives the upper and lower pull rollers and the reel to rotate, the power is transmitted from the lower pull roller to the upper pull roller and then to the reel. Thus, through the form of power transmission by the same drive shaft 11, the pull rollers and the reel work synchronously to achieve a single driving force output.

[0046] In the above-provided embodiments, on the basis of ensuring the original driving function of the pulling roller, the ear header integrates the function of the side reel box. That is, the sprocket at the top of the ear header can be directly mounted with the reel chain to directly perform the reel operation, realizing a single driving force input and multi-point power output of the upper and lower pulling rollers and the reel chain. It has the advantages of compact structure, low manufacturing cost, and high reliability. The cutting table provided by the embodiment of the present invention adopts a series drive of multiple ear headers, and a single drive shaft can be used to drive multiple ear headers, without separately setting drive sprockets and chains for a single ear header, greatly improving the running reliability of the cutting table, extending the overall maintenance cycle of the cutting table, and at the same time making the layout of the cutting table more reasonable and compact.

[0047] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations of the present invention falling within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A corn harvester ear picking box, the ear picking box is connected to a stem pulling roller and a straw pulling chain, and a stem pulling roller driving mechanism is used to drive an upper stem pulling roller and a lower stem pulling roller, characterized in that: The stem pulling roller driving mechanism comprises: A driving shaft, the driving shaft is used to input power to the stem pulling roller driving mechanism; An intermediate shaft driving unit, wherein the intermediate shaft is connected to the driving shaft; A pull-down stem roller driving unit, the pull-down stem roller driving unit is connected to the intermediate shaft, and the intermediate shaft provides driving power to the pull-down stem roller driving unit, thereby driving the pull-down stem roller to rotate; An upper stem roller driving unit, wherein the upper stem roller driving unit comprises an idler shaft, wherein the intermediate shaft is connected to the idler shaft to provide driving force to the upper stem roller driving unit, thereby driving the upper stem roller to rotate in the opposite direction to the lower stem roller; A reed chain driving mechanism is connected to the upper stem roller driving unit for driving the reed chain.

2. A corn harvester ear picking box as claimed in claim 1, characterized in that: The pull-down stem roller driving unit comprises a pull-down stem roller output shaft, and the intermediate shaft is connected to the pull-down stem roller output shaft to provide power to the pull-down stem roller output shaft.

3. A corn harvester ear picking box as claimed in claim 2, characterized in that: The upper stem roller driving unit comprises an upper stem roller output shaft, and the idler shaft is connected to the upper stem roller output shaft to provide power to the upper stem roller output shaft.

4. A corn harvester ear picking box as claimed in claim 3, characterized in that: The reel chain driving mechanism comprises: A sprocket intermediate shaft, the sprocket intermediate shaft being connected to the upper pull-up stalk roller driving unit; A sprocket output shaft is connected to the sprocket intermediate shaft to provide power to the reed-pulling chain, thereby driving the reed-pulling chain to rotate to achieve reed-pulling.

5. A corn harvester ear picking box as claimed in claim 4, characterized in that: The intermediate shaft is connected to the driving shaft through a first bevel gear and a second bevel gear, the first bevel gear rotates coaxially with the driving shaft; the intermediate shaft driving unit includes a second bevel gear, the second bevel gear rotates coaxially with the intermediate shaft; the second bevel gear is connected to the first bevel gear.

6. A corn harvester ear picking box as claimed in claim 5, characterized in that: The intermediate shaft driving unit includes a first spur gear, the idler gear on the idler shaft is meshed with the first spur gear, the upper stem roller output shaft is provided with a second spur gear, the second spur gear rotates coaxially with the upper stem roller output shaft, and the idler gear is meshed with the second spur gear.

7. A corn harvester ear picking box as claimed in claim 6, characterized in that: The second spur gear is connected to the pull-down stem roller output shaft, and a third spur gear is arranged on the pull-down stem roller output shaft. The third spur gear rotates coaxially with the pull-down stem roller output shaft, and the third spur gear is meshed with the second spur gear.

8. The corn harvester ear picking box according to claim 7, characterized in that: The straw chain driving mechanism is connected to the upper stem roller driving unit via a spline shaft; the sprocket intermediate shaft is connected to the upper stem roller output shaft via a spline shaft, the spline shaft is provided with a fourth spur gear, and the spline shaft is connected to the upper stem roller output shaft via the fourth spur gear.

9. A corn harvester ear picking box as claimed in claim 8, characterized in that: The sprocket intermediate shaft is provided with a fifth spur gear, the fifth spur gear is connected to the spline shaft and rotates with the spline shaft; the sprocket intermediate shaft is provided with a third bevel gear, the sprocket output shaft is provided with a fourth bevel gear, and the fourth bevel gear is meshed with the third bevel gear.

10. The corn harvester ear picking box according to claim 9, characterized in that: A reel sprocket is arranged on the sprocket output shaft, and the reel sprocket is connected to the reel chain to drive the reel chain to rotate; a safety clutch is arranged on the sprocket output shaft, and the safety clutch is arranged above the reel sprocket.

11. A corn harvester header, characterized in that: It comprises the corn harvester ear picking box as described in any one of claims 1 to 10, the number of the ear picking boxes is at least 2, and the ear picking boxes are connected by couplings.

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