Ear picking device and corn harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to an ear picking device and a corn harvester. The ear picking device comprises a body; the harvesting and ear picking assembly is located on the front portion of the body; the dead knife cutting assembly is detachably mounted on a dead knife mounting position at the bottom of the body; the driving assembly is arranged in the body and comprises a first driving part which is in driving connection with the harvesting and ear picking assembly and a second driving part which is in driving connection with the dead knife cutting assembly; the driving end of the second driving part extends to the bottom cutter mounting position, or the first transmission end of a transmission part which is located in the body and is in transmission connection with the driving end of the second driving part extends to the bottom cutter mounting position, and a transmission connection part of the bottom cutter cutting assembly can be detachably connected with the driving end or the first transmission end. The interchangeability of the cutting function with the dead knife and the cutting function without the dead knife is achieved, the requirements of different users are met, meanwhile, the working efficiency is improved, the cost is reduced, and operability is high.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery, and in particular to an ear picking device and a corn harvester. Background Art

[0002] At present, according to market demand, regarding corn harvesters, there are users who need to harvest only corn and have only the ear picking function; there are users who need to cut the corn stalks while harvesting corn and have a bottom knife cutting function; there are also users who have both needs. In some cases, it is sufficient to only harvest corn, such as when purchasing a small area. In some cases, it is necessary to cut the corn stalks while harvesting corn. This can prevent the uncut corn stalks from entangled during the operation, affecting the effective progress of the operation and affecting the efficiency of the operation.

[0003] However, most of the corn harvesters with bottom knife cutting devices on the market currently have the bottom knife cutting device box and the ear picking device fixed together, and the general structure is relatively complex, and the volume is also large. The casting shell occupies a large part of the weight, which reduces the work efficiency of the header to a certain extent. When only corn needs to be harvested, using a corn harvester with a bottom knife cutting device for harvesting is relatively cumbersome, and also reduces the harvesting work efficiency and harvesting cost. However, if both corn harvesters with and without bottom knife cutting devices are purchased, the cost will be greatly increased. Utility Model Content

[0004] The purpose of the present application is to provide an ear picking device and a corn harvester to achieve interchangeability between a device with a bottom knife cutting function and a device without a bottom knife cutting function to meet the needs of different users, while improving operating efficiency, reducing costs and enhancing operability.

[0005] In a first aspect, the present application provides an ear picking device, comprising:

[0006] ontology; and

[0007] A harvesting and ear picking assembly located at the front of the body; and

[0008] A bed knife cutting assembly detachably mounted on a bed knife mounting position at the bottom of the body; and

[0009] A driving assembly is arranged in the main body, and the driving assembly includes a first driving part drivingly connected to the harvesting and ear picking assembly, and a second driving part drivingly connected to the bottom knife cutting assembly, the driving end of the second driving part extends to the bottom knife mounting position or the first driving end of the transmission part located in the main body and drivingly connected to the driving end of the second driving part extends to the bottom knife mounting position, and the transmission connection component of the bottom knife cutting assembly can be detachably connected to the driving end or the first driving end.

[0010] Furthermore, the transmission part is detachably installed between the driving end of the second driving part and the bottom knife mounting position, the first transmission end of the transmission part is detachably transmission-connected to the transmission connecting part of the bottom knife cutting assembly, and the second transmission end of the transmission part opposite to the first transmission end is detachably transmission-connected to the driving end of the second driving part.

[0011] Furthermore, a detachably mounted fixed connection frame is provided on the periphery of the bottom knife mounting position.

[0012] Furthermore, the ear picking device further comprises a first baffle detachably fixedly connected to the fixed connection frame to close the interior of the bed knife installation position; and / or

[0013] The ear picking device also includes a second baffle which is detachably fixedly connected to the outer side of the transmission part to block the inside of the transmission part.

[0014] Furthermore, the transmission connection component is provided with a spline connection hole;

[0015] The driving end or the first transmission end is configured as a spline connection shaft;

[0016] The spline connection hole is sleeve-engaged and connected to the outer periphery of the spline connection shaft.

[0017] Furthermore, the bottom knife cutting assembly also includes a knife holder disc and a swing knife fixedly connected to the edge of the knife holder disc, and the transmission connection component is fixedly connected to the knife holder disc;

[0018] The second driving part drives the knife holder disc to rotate, so as to drive the swing knife to rotate and cut.

[0019] Furthermore, the tool holder plate is arranged parallel to the chassis of the body;

[0020] At least one of the swinging knives is fixedly connected to the tool holder disc, one end of the swinging knife is fixedly connected to the edge of the tool holder disc, and the other end extends out parallel to the edge of the tool holder disc.

[0021] Furthermore, the transmission connection component is fixedly connected to the middle part of the tool holder disc;

[0022] At least two swing knives are evenly and fixedly connected to the edge of the tool holder disc along its circumference, wherein at least two swing knives extend along the same straight line and are arranged on opposite sides of the tool holder disc.

[0023] Furthermore, the transmission connection part comprises a first connection half ring and a second connection half ring whose holes are opposite to each other to form the spline connection hole, and a locking fixture which passes through the first connection half ring and the second connection half ring in sequence and is locked and fixed;

[0024] The first connecting half ring and the second connecting half ring are arranged symmetrically, the first connecting half ring is provided with at least one first through hole, and correspondingly, the second connecting half ring is provided with at least one second through hole opposite to the first through hole.

[0025] Correspondingly, at least one group of the locking fixtures is provided, and the locking fixtures include a fixing bolt and a bolt nut. After the fixing bolt passes through the corresponding first through hole and second through hole in sequence, the bolt nut is tightened to lock the bolt.

[0026] In a second aspect, the present application provides a corn harvester, comprising the ear picking device described in any one of the aforementioned items.

[0027] Compared with the prior art, the present application provides an ear picking device and a corn harvester using the ear picking device, the ear picking device comprising a main body, i.e., the ear picking device main body, and a harvesting ear picking assembly located at the front of the main body for harvesting corn, and a bed knife cutting assembly detachably mounted on a bed knife mounting position at the bottom of the main body, and a driving assembly arranged in the main body, the driving assembly comprising a first driving portion drivingly connected to the harvesting ear picking assembly for driving and controlling the harvesting ear picking assembly for harvesting corn, and a second driving portion drivingly connected to the bed knife cutting assembly, the driving end of the second driving portion can directly extend to the bed knife mounting position, or a transmission portion drivingly connected to the driving end of the second driving portion can be provided in the main body, the first transmission end of the transmission portion can extend to the bed knife mounting position, the transmission connection component of the bed knife cutting assembly can be detachably connected to the driving end or the first transmission end, and when connected, the second driving portion of the driving assembly can drive the bed knife cutting assembly to cut corn stalks.

[0028] With such an arrangement, the function of cutting corn stalks and the function of not cutting corn stalks can be interchanged on one ear picking device, thereby reducing the cost of use. When it is necessary to cut corn stalks while harvesting corn, it is only necessary to install the bottom knife cutting assembly on the bottom knife mounting position at the bottom of the ear picking device. It is convenient and fast, easy to operate, and can also achieve cutting of corn stalks at the same height, and has a lower manufacturing cost than an integrated ear picking device. When it is only necessary to harvest corn, it is only necessary to remove the bottom knife cutting assembly, thereby improving the flexibility of the ear picking device, reducing the weight of the ear picking device, and not occupying volume, thereby improving the harvesting efficiency and reducing the cost at the same time. Preferably, the transmission part is also detachable, thereby further reducing the overall weight of the ear picking device, further improving the harvesting efficiency and further reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of the ear picking device provided in the embodiment of the present application with a bed knife cutting assembly installed;

[0031] Figure 2 A structural schematic diagram of the ear picking device provided in an embodiment of the present application with the bed knife cutting assembly removed;

[0032] Figure 3 This is a structural schematic diagram of the ear picking device provided in an embodiment of the present application with the bottom knife cutting assembly removed and the upper baffle closed.

[0033] Reference numerals:

[0034] 100-ear picking device;

[0035] 10-Ontology;

[0036] 11-Bed knife installation position;

[0037] 12-Fixed connection frame;

[0038] 13- third fixing bolt;

[0039] 14- first baffle;

[0040] 15- second baffle;

[0041] 16- fourth fixing bolt;

[0042] 20-harvesting and ear picking component;

[0043] 21- dial;

[0044] 30-bed knife cutting assembly;

[0045] 31-spline connection hole;

[0046] 321-first connecting half ring;

[0047] 322-second connecting half ring;

[0048] 331-first fixing bolt;

[0049] 332-bolt cap;

[0050] 34- knife holder plate;

[0051] 35-throwing knife;

[0052] 36- second fixing bolt;

[0053] 40- transmission part;

[0054] 41- transmission shaft;

[0055] 411- second transmission end;

[0056] 42-spline connecting shaft;

[0057] 50- driving assembly;

[0058] 51-Drive end. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0060] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0061] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0062] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0063] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0064] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0066] like Figures 1 to 3 As shown, the embodiment of the present application provides an ear picking device 100 and a corn harvester using the ear picking device 100 .

[0067] The ear picking device 100 includes a main body 10, that is, the ear picking device body, which may include a mounting body, a mounting shell, etc.; and a harvesting ear picking component 20 located at the front of the ear picking device 100, which may specifically include a thumbwheel 21, an inverted cone and a cutting knife, etc., for harvesting corn.

[0068] The ear picking device 100 may also include a bed knife cutting assembly 30 detachably mounted on a bed knife mounting position 11 at the bottom of the ear picking device 100; and a driving assembly 50 arranged in the ear picking device 100, the driving assembly 50 including a first driving portion drivingly connected to the harvesting ear picking assembly 20, and a second driving portion for drivingly connecting to the bed knife cutting assembly 30, the driving end 51 of the second driving portion may extend to the aforementioned bed knife mounting position 11 for installing the bed knife cutting assembly 30, or the ear picking device 100 may also include a transmission portion 40 located in the body 10 and drivingly connected to the driving end 51 of the second driving portion, the first driving end of the transmission portion 40 extends to the bed knife mounting position 11, so that the transmission connection component of the bed knife cutting assembly 30 can be detachably connected to the driving end 51 or the first driving end; the driving assembly 50 may also include a driving motor, the first driving portion and the second driving portion are drivingly connected to the driving motor.

[0069] Preferably, the transmission part 40 is detachably installed between the driving end 51 of the driving part and the bottom knife mounting position 11. Specifically, the aforementioned first transmission end of the transmission part 40 is detachably transmission-connected to the transmission connecting part of the bottom knife cutting assembly 30, and the second transmission end 411 of the transmission part 40 opposite to the first transmission end is detachably transmission-connected to the driving end 51 of the second driving part.

[0070] With such arrangement, when the ear picking device 100 does not need to use the corn stalk cutting function, the aforementioned bottom knife cutting assembly 30 and the transmission part 40 can be removed together, which can further reduce the overall mechanical weight of the ear picking device 100 and improve the overall flexibility. At the same time, it does not take up volume, saves space, improves harvesting efficiency, and reduces costs.

[0071] Compared with the prior art, the ear picking device 100 provided in the embodiment of the present application and the corn harvester using the ear picking device 100, the ear picking device 100 includes a body 10, that is, the ear picking device body, and a harvesting ear picking assembly 20 located at the front of the body 10, which is used for harvesting corn, and a bottom knife cutting assembly 30 detachably mounted on a bottom knife mounting position 11 at the bottom of the body 10, and a driving assembly 50 arranged in the body 10, the driving assembly 50 includes a first driving part drivingly connected to the harvesting ear picking assembly 20, which is used to drive and control the harvesting ear picking assembly 20 to harvest corn. Harvesting, and a second driving part for driving connection with the bottom knife cutting assembly 30, the driving end 51 of the second driving part can directly extend to the bottom knife mounting position 11, or, a transmission part 40 drivingly connected to the driving end 51 of the second driving part can be provided in the main body 10, the first driving end of the transmission part 40 can extend to the bottom knife mounting position 11, the transmission connection component of the bottom knife cutting assembly 30 can be detachably connected to the driving end 51 or the first driving end, and when connected, the second driving part of the driving assembly 50 can drive the bottom knife cutting assembly 30 to cut corn stalks.

[0072] With such arrangement, the interchange between the function of cutting corn stalks and the function of not cutting corn stalks can be realized on one ear picking device 100, thereby reducing the use cost. When it is necessary to cut corn stalks while harvesting corn, it is only necessary to install the bottom knife cutting assembly 30 on the bottom knife installation position 11 at the bottom of the ear picking device 100, which is convenient and quick, simple to operate, and can also achieve cutting corn stalks at the same height, and has a lower manufacturing cost than the integrated ear picking device 100; when it is only necessary to harvest corn, it is only necessary to disassemble the bottom knife cutting assembly 30, thereby improving the flexibility of the ear picking device 100, reducing the weight of the ear picking device 100, not occupying volume, improving the harvesting efficiency, and reducing the cost. It is also preferred that the transmission part 40 can also be disassembled, further reducing the overall weight of the ear picking device 100, further improving the harvesting efficiency, and further reducing the cost; in addition, the arrangement of the detachable bottom knife cutting assembly 30 and the transmission part 40 is also convenient for separate replacement and maintenance when the bottom knife cutting assembly 30 and the transmission part 40 need to be replaced or repaired, without the need for overall device maintenance, thereby reducing the use cost.

[0073] A preferred embodiment is as follows Figure 3 As shown, the outer periphery of the bottom knife mounting position 11 of the ear picking device 100 provided in the embodiment of the present application may also be provided with a detachably installed fixed connection frame 12, which may specifically include four fixed connection frames 12 opposite to each other in pairs, and the fixed connection frame 12 may specifically be detachably fixedly connected to the outer periphery of the bottom knife mounting position 11 by a third fixing bolt 13.

[0074] Correspondingly, such as Figure 3 As shown, the ear picking device 100 provided in the embodiment of the present application may include a first baffle 14 which is detachably fixedly connected to the aforementioned fixed connection frame 12, and can be specifically snap-fitted and fixedly connected. When the first baffle 14 is snap-fitted and connected to the fixed connection frame 12, the first baffle 14 can close and block the interior of the bottom knife mounting position 11, thereby playing a protective and aesthetic role.

[0075] Similar, such as Figure 1 and Figure 3 As shown, the ear picking device 100 provided in the embodiment of the present application may also include a second baffle 15 that is detachably fixedly connected to the outer side of the aforementioned transmission part 40. When the transmission part 40 is installed, the second baffle 15 can be covered to block the interior of the transmission part 40, which plays a protective and aesthetic role. Specifically, the second baffle 15 can be detachably fixedly connected by a fourth fixing bolt 16.

[0076] When it is necessary to install the bottom knife cutting assembly 30 and the transmission part 40, first remove the first baffle 14, the second baffle 15 and the fixed connection frame 12, then install the transmission part 40 to the corresponding position, then install the second baffle 15, and then fix the fixed connection frame 12 on the bottom knife mounting position 11, and then install the bottom knife cutting assembly 30; when it is necessary to remove the bottom knife cutting assembly 30 and the transmission part 40, first remove the bottom knife cutting assembly 30 and the second baffle 15, then remove the fixed connection frame 12, then remove the transmission part 40, and finally install the fixed connection frame 12, the first baffle 14 and the second baffle 15.

[0077] A preferred embodiment is as follows Figure 1 and Figure 2 As shown, the bottom knife cutting assembly 30 provided in the embodiment of the present application includes a transmission connection component, which may specifically include a spline connection hole 31. Correspondingly, the driving end 51 of the second driving part of the aforementioned driving assembly may be configured as or may be connected to a spline connection shaft 42, or the first transmission end of the transmission part 40 that is transmission-connected to the driving end 51 of the second driving part of the driving assembly may be configured as or may be connected to a spline connection shaft 42. The transmission part 40 includes a transmission shaft 41, and the opposite ends of the transmission shaft 41 are respectively the first transmission end and the second transmission end 411. The axial direction of the spline connection shaft 42 may not be in the same direction as the axial direction of the transmission shaft 41; the spline connection hole 31 is sleeved and meshedly connected to the outer periphery of the spline connection shaft 42.

[0078] Such an arrangement further improves the operability of the disassembly connection. Disassembly through the spline connection is simple to operate, improves user experience, and has strong marketability.

[0079] A specific embodiment is as follows Figure 1 As shown, the bottom knife cutting assembly 30 in the aforementioned embodiment may further include a knife holder disc 34 and a swing knife 35 fixedly connected to the edge of the knife holder disc 34, and the transmission connection component is fixedly connected to the knife holder disc 34, preferably the transmission connection component is fixedly connected to the middle of the knife holder disc 34. The second driving part of the aforementioned driving assembly drives the knife holder disc 34 to rotate, thereby driving the swing knife 35 fixedly connected to the knife holder disc 34 to rotate, thereby cutting the corn stalks.

[0080] Furthermore, the aforementioned tool holder disc 34 is arranged parallel to the chassis of the main body 10 (i.e., the main body of the ear picking device), and at least one swinging knife 35 is fixedly connected to the tool holder disc 34, one end of the swinging knife 35 is fixedly connected to the edge of the tool holder disc 34, and the other end extends parallel to the edge of the tool holder disc 34, so that the tool holder disc 34 rotates parallel to the chassis of the ear picking device 100, and at the same time, the swinging knife 35 also rotates and cuts parallel to the chassis of the ear picking device 100.

[0081] Specifically, the end of the aforementioned swing knife 35 can be fixedly connected to the edge of the knife holder disc 34 through a second fixing bolt 36.

[0082] Further preferably, at least two swing knives 35 are evenly and fixedly connected to the edge of the knife holder disc 34 along its circumferential direction, wherein at least two swing knives 35 extend along the same straight line and are arranged on opposite sides of the knife holder disc 34. This can improve the cutting effect, control the number of swing knives 35, and save manufacturing costs.

[0083] Another preferred embodiment is as follows Figure 1 As shown, the transmission connection component of the bed knife cutting assembly 30 may specifically include a first connection half ring 321 and a second connection half ring 322 whose holes are opposite to each other to form the spline connection hole 31, and a locking fixture that sequentially passes through the first connection half ring 321 and the second connection half ring 322 for locking and fixing. This can improve the firmness of the detachable locking and the connection reliability.

[0084] Specifically, the first connecting half ring 321 and the second connecting half ring 322 in the above embodiment are arranged symmetrically, the first connecting half ring 321 is provided with at least one first through hole, and correspondingly, the second connecting half ring 322 is provided with at least one second through hole opposite to the first through hole, and correspondingly, at least one set of the above locking fixings is provided, and the locking fixings include fixing bolts (specifically, as shown in FIG. Figure 1 The first fixing bolt 331 and the bolt cap 332 are shown in the figure. After the first fixing bolt 331 passes through the corresponding first through hole and the second through hole in sequence, the bolt cap 332 is tightened to lock the bolt. Figure 1 As shown, the embodiment of the present application is described by taking an example of two sets of locking fixing members spaced apart in an upper and lower manner.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A picking device, characterized in that: include: ontology; and A harvesting and ear picking assembly located at the front of the body; and A bed knife cutting assembly detachably mounted on a bed knife mounting position at the bottom of the body; and A driving assembly is arranged in the main body, and the driving assembly includes a first driving part drivingly connected to the harvesting and ear picking assembly, and a second driving part drivingly connected to the bottom knife cutting assembly, the driving end of the second driving part extends to the bottom knife mounting position or the first driving end of the transmission part located in the main body and drivingly connected to the driving end of the second driving part extends to the bottom knife mounting position, and the transmission connection component of the bottom knife cutting assembly can be detachably connected to the driving end or the first driving end.

2. The ear picking device according to claim 1, characterized in that: The transmission part is detachably installed between the driving end of the second driving part and the bottom knife mounting position, the first transmission end of the transmission part is detachably transmission-connected to the transmission connecting part of the bottom knife cutting assembly, and the second transmission end of the transmission part opposite to the first transmission end is detachably transmission-connected to the driving end of the second driving part.

3. The ear picking device according to claim 2, characterized in that: A detachably mounted fixed connection frame is arranged on the periphery of the bottom knife mounting position.

4. The ear picking device according to claim 3, characterized in that: The ear picking device further comprises a first baffle which is detachably fixedly connected to the fixed connection frame to close the interior of the bed knife installation position; and / or The ear picking device also includes a second baffle which is detachably fixedly connected to the outer side of the transmission part to block the inside of the transmission part.

5. The ear picking device according to any one of claims 1 to 4, characterized in that: The transmission connection component is provided with a spline connection hole; The driving end or the first transmission end is configured as a spline connection shaft; The spline connection hole is sleeve-engaged and connected to the outer periphery of the spline connection shaft.

6. The ear picking device according to claim 5, characterized in that: The bed knife cutting assembly also includes a knife holder disc and a swing knife fixedly connected to the edge of the knife holder disc, and the transmission connection component is fixedly connected to the knife holder disc; The second driving part drives the knife holder disc to rotate, so as to drive the swing knife to rotate and cut.

7. The ear picking device according to claim 6, characterized in that: The tool holder disc is arranged parallel to the bottom plate of the body; At least one swing knife is fixedly connected to the tool holder disc, one end of the swing knife is fixedly connected to the edge of the tool holder disc, and the other end extends out parallel to the edge of the tool holder disc.

8. The ear picking device according to claim 7, characterized in that: The transmission connection component is fixedly connected to the middle part of the tool holder disc; At least two swing knives are evenly and fixedly connected to the edge of the tool holder disc along its circumference, wherein at least two swing knives extend along the same straight line and are arranged on opposite sides of the tool holder disc.

9. The ear picking device according to claim 5, characterized in that: The transmission connection component comprises a first connection half ring and a second connection half ring which are opposite to each other to form the spline connection hole, and a locking fixture which passes through the first connection half ring and the second connection half ring in sequence and is locked and fixed; The first connecting half ring and the second connecting half ring are arranged symmetrically, the first connecting half ring is provided with at least one first through hole, and correspondingly, the second connecting half ring is provided with at least one second through hole opposite to the first through hole. Correspondingly, at least one group of the locking fixtures is provided, and the locking fixtures include a fixing bolt and a bolt nut. After the fixing bolt passes through the corresponding first through hole and second through hole in sequence, the bolt nut is tightened to lock the bolt.

10. A corn harvester, characterized in that: The invention comprises the ear picking device according to any one of claims 1 to 9.

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