Corn harvester capable of recovering grains

Abstract

The utility model discloses a corn harvester capable of recovering grains. The corn harvester comprises an ear picking device, an ear lifting device, a peeling device, an ear collecting device, a grain collecting and conveying device and a grain lifting and conveying device. The ear picking device is used for picking corn ears, the picked ears are conveyed to the peeling device through the ear lifting device to be peeled, and the peeled ears enter the ear collecting device. And in the peeling process, the fallen grains fall down to the grain collecting and conveying device. And then, the grain lifting and conveying device lifts the grains upwards to an inlet of the ear collecting device and enters the ear collecting device. According to the corn harvester capable of recovering the grains, the grains falling from the peeling device can be collected by the grain collecting and conveying device and transferred to the ear collecting device in real time through the grain lifting and conveying device, manual grain unloading operation is not needed, the labor intensity of workers is reduced, and the working efficiency is improved. And the problems that the work progress is slowed down and the labor investment is increased due to manual grain unloading are solved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a grain recovery corn harvester. Background Art

[0002] With the advancement of agricultural machinery technology, corn harvesting machinery is developing in the direction of large-scale and diversified development. However, the mainstream corn combine harvesters on the market currently have the problem of kernels falling off during the peeling process.

[0003] In order to recycle the grains, some models are equipped with a grain recovery box to collect the fallen grains. When the grain recovery box is full of fallen grains, manual unloading is required. When the grain recovery box is small, frequent unloading is required, which not only reduces the overall harvesting efficiency, but also increases the labor intensity of farmers. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a grain recovery corn harvester, which aims to solve the problem that the existing corn harvesters with grain recovery function require frequent manual unloading operations, which affects the harvesting efficiency and increases the labor intensity.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a grain recovery corn harvester, comprising an ear picking device, an ear lifting device, a peeling device and an ear collecting device connected in sequence, and also comprising:

[0007] a grain collecting and conveying device, wherein the inlet of the grain collecting and conveying device is arranged below the peeling device and is used for receiving the grains dropped by the peeling device;

[0008] A grain lifting and conveying device, wherein the inlet of the grain lifting and conveying device is connected with the outlet of the grain collecting and conveying device, and the outlet of the grain lifting and conveying device is connected with the inlet of the ear collecting device.

[0009] The grain recovery corn harvester provided by the utility model also includes:

[0010] A grain collecting bin, which is arranged between the grain lifting and conveying device and the ear collecting device;

[0011] A grain diverting device, the grain diverting device includes a first grain conveying channel, a first inlet, a first outlet, a second outlet and an outlet conversion device, the first inlet, the first outlet and the second outlet are all connected to the first grain conveying channel, the outlet conversion device is arranged in the first grain conveying channel, the first inlet is connected to the outlet of the grain lifting and conveying device, the first outlet is connected to the ear collecting device, the second outlet is connected to the grain collecting bin, and the outlet conversion device is used to connect one of the first outlet and the second outlet to the first inlet.

[0012] According to the grain recovery corn harvester provided by the utility model, the grain collecting and conveying device comprises:

[0013] A grain receiving trough body, wherein the grain receiving trough body is arranged below the peeling device, the top of the grain receiving trough body is open, and the bottom of the grain receiving trough body is provided with an outlet of the grain receiving trough body;

[0014] The first conveying mechanism is arranged at the inner bottom of the grain receiving trough body, and the first conveying mechanism is used to convey the grains in the grain receiving trough body to the outlet of the grain receiving trough body.

[0015] According to the grain recovery corn harvester provided by the utility model, the cross section of the grain receiving trough body is an inverted trapezoidal structure.

[0016] According to the grain recovery corn harvester provided by the utility model, the grain lifting and conveying device comprises:

[0017] A conveying shell, wherein the conveying shell is disposed between the grain receiving tank and the grain diverting device, and a second grain conveying channel is disposed in the conveying shell, and the second grain conveying channel is respectively connected to the first inlet of the grain diverting device and the outlet of the grain receiving tank;

[0018] The second conveying mechanism is arranged in the second grain conveying channel, and is used for driving the grains in the second grain conveying channel to move from the outlet of the grain receiving trough to the first inlet of the grain diverting device.

[0019] According to the grain recovery corn harvester provided by the utility model, the first conveying mechanism and the second conveying mechanism at least include a screw conveyor, a scraper conveyor or a belt conveyor.

[0020] According to the grain recovery corn harvester provided by the utility model, the first grain conveying channel is inclined, and the first outlet and the second outlet are both lower than the first inlet.

[0021] According to the grain recovery corn harvester provided by the utility model, a dust-blowing fan is further provided between the grain receiving trough and the peeling device, and the dust-blowing fan is located outside the grain falling area.

[0022] The grain recovery corn harvester provided by the utility model also includes a debris suction fan arranged on one side of the grain diversion device, the grain diversion device is provided with a debris removal port, and the air inlet of the debris suction fan is connected to the debris removal port.

[0023] According to the grain recovery corn harvester provided by the utility model, the outlet conversion device includes:

[0024] a baffle, the baffle being arranged in the first seed conveying passage and being rotatably connected to the seed diverting device, wherein when the baffle is rotated to a first position, the baffle blocks the first outlet and opens the second outlet, and when the baffle is rotated to a second position, the baffle blocks the second outlet and opens the first outlet;

[0025] A driving device is drivingly connected to the baffle plate and is used to drive the baffle plate to rotate between the first position and the second position.

[0026] The utility model adopts the above technical solution, which has the following advantages:

[0027] The utility model provides a grain recovery corn harvester, comprising an ear picking device, an ear lifting device, a peeling device, an ear collecting device, a grain collecting and conveying device, and a grain lifting and conveying device. The inlet of the grain collecting and conveying device is arranged below the peeling device, and is used to receive the grains dropped from the peeling device. The inlet of the grain lifting and conveying device is connected with the outlet of the grain collecting and conveying device, and the outlet of the grain lifting and conveying device is connected with the inlet of the ear collecting device. During the operation of the grain recovery corn harvester provided by the utility model, the ear picking device is used to pick corn ears on the straw, and the picked ears are transported to the peeling device through the ear lifting device for peeling, and the peeled ears enter the ear collecting device. During the peeling process, part of the grains on the ears may fall off, and the fallen grains fall downward under the action of gravity, and are received by the grain collecting and conveying device located below the peeling device, and the grain collecting and conveying device transports the grains to the inlet of the grain lifting and conveying device, and then the grain lifting and conveying device lifts the grains upward to the inlet of the ear collecting device and enters the ear collecting device. In the grain recovery corn harvester provided by the utility model, the grains dropped from the peeling device can be collected by the grain collecting and conveying device, and transferred to the ear collecting device in real time through the grain lifting and conveying device, without the need for manual unloading of grains, and there is no problem of slowing down the work progress and increasing labor input due to manual unloading of grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. The same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0029] Figure 1 This is a structural schematic diagram of a grain recovery corn harvester provided by an embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the connection structure between the peeling device and the impurity blowing fan provided by one embodiment of the utility model;

[0031] Figure 3 It is a structural schematic diagram of a grain lifting and conveying device provided by an embodiment of the utility model;

[0032] Figure 4 It is a partial structural schematic diagram of the second conveying mechanism of the grain lifting and conveying device provided in one embodiment of the utility model;

[0033] Figure 5 It is a structural schematic diagram of a grain collecting and conveying device provided by an embodiment of the utility model;

[0034] Figure 6 It is a cross-sectional view of a grain diversion device provided in one embodiment of the utility model.

[0035] The marks in the figure are as follows:

[0036] 110, vehicle body; 120, ear picking device; 130, ear lifting device; 140, peeling device; 150, ear collecting device; 200, grain collecting and conveying device; 210, grain receiving trough; 211, guide plate; 212, support plate; 220, first conveying mechanism; 300, grain lifting and conveying device; 310, conveying shell; 320, second conveying mechanism; 400, grain collecting bin; 500, grain diverting device; 510, shell; 511, first grain conveying channel; 512, first inlet; 513, first outlet; 514, second outlet; 521, baffle; 522, handle; 530, impurity removal port; 600, impurity blowing fan; 700, impurity suction fan. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described 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.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] The utility model provides a grain recovery corn harvester, in which the grains dropped from the peeling device are collected by the grain collection device and transported to the grain lifting and conveying device, and the grain lifting and conveying device transports the grains to the ear collection device in real time. Therefore, the grain recovery corn harvester provided by the utility model does not require manual grain unloading operation, and there is no problem of slowing down the work progress and increasing labor input due to manual grain unloading.

[0044] The grain recovery corn harvester provided by the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0045] See also Figure 1 to Figure 6 An embodiment of the utility model provides a grain recovery corn harvester, including a corn harvester body and a grain recovery device.

[0046] The main body of the corn harvester includes a vehicle body 110 and an ear picking device 120, an ear lifting device 130, a husking device 140 and an ear collecting device 150 arranged on the vehicle body 110. The ear picking device 120 is arranged at the front end of the vehicle body 110, the husking device 140 is arranged at the top of the middle position of the vehicle body 110, the ear lifting device 130 is arranged obliquely between the outlet of the ear picking device 120 and the inlet of the husking device 140, the ear collecting device 150 is arranged behind the husking device 140, and the inlet of the ear collecting device 150 is located below the outlet of the husking device 140.

[0047] When the vehicle body 110 is moving, the ear picking device 120 is used to pick the ear of fruit from the straw in front of the vehicle body 110 . The ear of fruit is then transported to the peeling device 140 for peeling via the ear of fruit lifting device 130 . The peeled ear of fruit enters the ear of fruit collecting device 150 .

[0048] The grain recovery device includes a grain collecting and conveying device 200 and a grain lifting and conveying device 300 .

[0049] During the peeling process, some grains on the ear often fall off. Since the grains will fall downward under the action of gravity, the grain collecting and conveying device 200 is arranged below the peeling device 140. More specifically, the entrance of the grain collecting and conveying device 200 is located below the peeling device 140, so that the grains can fall directly into the grain collecting and conveying device 200, and then the grain collecting and conveying device 200 conveys the grains to the next mechanism.

[0050] The grain lifting and conveying device 300 is arranged between the grain collecting and conveying device 200 and the fruit ear collecting device 150. More specifically, the inlet of the grain lifting and conveying device 300 is connected with the outlet of the grain collecting and conveying device 200 to receive the grains output by the grain collecting and conveying device 200, and the outlet of the grain lifting and conveying device 300 is connected with the fruit ear collecting device 150 to convey the grains into the fruit ear collecting device 150.

[0051] In the grain recovery corn harvester provided by the embodiment of the utility model, since a grain collecting and conveying device 200 and a grain lifting and conveying device 300 are provided, the grains dropped by the peeling device 140 can be collected and conveyed to the ear collecting device 150, and there is no need to unload the grains separately. Therefore, the harvesting efficiency will not be affected, and the labor intensity of farmers will not be increased.

[0052] In some embodiments of the present invention, a grain collecting bin 400 and a grain diverting device 500 are also included. The grain collecting bin 400 is arranged between the grain lifting device and the ear collecting device 150. The grain diverting device 500 is arranged on the top of the grain collecting bin 400 and the ear collecting device 150, and is located on the rear side of the grain lifting and conveying device 300. The grain diverting device 500 can achieve the effect of selectively conveying the grains to the grain collecting bin 400 or the ear collecting device 150.

[0053] The grain diverting device 500 includes a shell 510, and a first grain conveying channel 511 is arranged inside the shell 510. The first grain conveying channel 511 is opened at one end close to the outlet of the grain lifting and conveying device 300 to form a first inlet 512 of the grain diverting device 500. The first inlet 512 is connected to the outlet of the grain lifting and conveying device 300 for receiving grains conveyed from the grain lifting and conveying device 300.

[0054] A first outlet 513 is provided near the middle of the bottom of the shell 510, and the first outlet 513 is connected to the inner and outer sides of the first seed conveying channel 511. The seed collecting bin 400 is provided below the seed diverting device 500, and the inlet of the seed collecting bin 400 is located at the top of the seed collecting bin 400. The first outlet 513 of the shell 510 is aligned with the inlet of the seed collecting bin 400 up and down. In a preferred embodiment, in the vertical direction, the inlet of the seed collecting bin 400 covers the first outlet 513 of the shell 510, so that all the seeds dropped through the first outlet 513 can fall into the seed collecting bin 400.

[0055] The first grain conveying channel 511 is open at one end close to the fruit ear collecting device 150 to form a second outlet 514 of the grain diverting device 500. The second outlet 514 is located above the entrance at the top of the fruit ear collecting device 150. A preferred implementation is that the area covered by the entrance at the top of the fruit ear collecting device 150 is larger than the scattered area where the grains fall, so that all the grains can fall into the fruit ear collecting device 150.

[0056] An outlet conversion device is also provided in the first grain conveying channel 511, and the outlet conversion device includes two working positions. When the outlet conversion device is located at the first position, the outlet conversion device closes the first outlet 513 and opens the second outlet 514. At this time, the grains directly enter the ear collecting device 150 through the first grain conveying channel 511. When the outlet conversion device is located at the second position, the outlet conversion device closes the second outlet 514 and opens the first outlet 513. At this time, the grains directly enter the grain collecting bin 400 through the first grain conveying channel 511.

[0057] In some embodiments of the present invention, the grain collecting and conveying device 200 includes a grain receiving trough 210 and a first conveying mechanism 220. The grain receiving trough 210 is used to receive the grains dropped by the peeling device 140, and the first conveying mechanism 220 is used to convey the grains received by the grain receiving trough 210 to the next mechanism.

[0058] The grain receiving trough body 210 includes a guide plate 211 and a supporting plate 212. The supporting plate 212 is arranged at the bottom. The guide plates 211 include two. The bottom edges of the two guide plates 211 are respectively connected to the side edges of the supporting plate 212. The top edges of the two guide plates 211 extend upward and away from each other, forming an inverted trapezoidal structure trough body with a top opening width greater than the width of the supporting plate 212.

[0059] The structure of being wide at the top and narrow at the bottom can increase the gathering area of ​​the grain receiving trough 210, ensuring that all fallen grains fall into the grain receiving trough 210. The guide plate 211 is arranged at an angle, so that the grains falling on the guide plate 211 can slide along the inclined surface to the supporting plate 212.

[0060] An opening connecting the inner and outer sides of the grain receiving tank body 210 is provided at a position near one end of the supporting plate 212 , and the opening is the outlet of the grain receiving tank body 210 .

[0061] The first conveying mechanism 220 is disposed at the inner bottom of the grain receiving trough 210 , and is used to convey the grains in the grain receiving trough 210 to the outlet of the grain receiving trough 210 .

[0062] In some embodiments of the utility model, the grain lifting and conveying device 300 includes a conveying shell 310 and a second conveying mechanism 320. The second conveying mechanism 320 is arranged in the conveying shell 310, and is used to convey the grains entering the conveying shell 310 from the bottom of the conveying shell 310 to the top of the conveying shell 310. After the grains reach the top of the conveying shell 310, they enter the next mechanism.

[0063] A second grain conveying passage is provided inside the conveying shell 310, and openings communicating with the second grain conveying passage are provided at the bottom and top of the conveying shell 310, respectively. The opening at the bottom is the entrance of the grain lifting and conveying device 300, and the opening at the top is the exit of the grain lifting and conveying device 300. The entrance of the grain lifting and conveying device 300 is at the bottom of the exit of the grain collecting and conveying device 200, and is connected with the exit of the grain collecting and conveying device 200, so as to receive grains from the grain collecting and conveying device 200. The exit of the grain lifting and conveying device 300 is connected with the first entrance 512 of the grain diverting device 500, so as to convey the grains into the grain diverting device 500.

[0064] The second conveying mechanism 320 is disposed in the second seed conveying channel, and is used to convey the seeds at the entrance of the conveying shell 310 to the exit of the conveying shell 310 , and then allow the seeds to enter the seed diversion device 500 .

[0065] It should be noted that the conveying shell 310 can extend in a vertical direction, and of course can also extend obliquely, that is, the top of the conveying shell 310 extends upward and towards the direction close to the grain diverting device 500.

[0066] In some embodiments of the present invention, the first conveying mechanism 220 and the second conveying mechanism 320 may be one of conveying mechanisms such as a screw conveyor, a scraper conveyor, and a conveyor belt.

[0067] In some embodiments of the present invention, in order to allow the grains entering the grain diverting device 500 to move along the first grain conveying channel 511, the grain diverting device 500 can be tilted, that is, the first grain conveying channel 511 is tilted, and more specifically, the height of the first inlet 512 is greater than the heights of the first outlet 513 and the second outlet 514. In this way, after the grains enter the first grain conveying channel 511 through the first inlet 512, they can move along the slope of the first grain conveying channel 511 toward the first outlet 513 or the second outlet 514 under the action of gravity.

[0068] What falls from the peeling device 140 is not only the grains, but also usually impurities such as some leaves or straw fragments. After the grains are recovered, they need to be screened to separate the impurities from the grains, but this process will also increase the labor intensity of farmers.

[0069] To this end, in some embodiments of the present invention, a dust-blowing fan 600 is further provided between the seed receiving trough 210 and the peeling device 140 , and the dust-blowing fan 600 is located outside the seed falling area.

[0070] A blower 600 is arranged outside the seed drop area to blow air to the seed drop area when the seeds and impurities fall from the peeling device 140. Since the weight of the impurities is less than the weight of the seeds, the impurities are blown away by the wind, and the seeds continue to move downward and fall into the seed receiving tank 210.

[0071] In order to further remove impurities contained in the grains, in some embodiments of the present invention, a suction fan 700 is also provided at the grain diversion device 500 for performing secondary impurity removal on the grains before the grains enter the grain collecting bin 400 or the ear collecting device 150 .

[0072] Specifically, a dust removal port 530 is provided at the top of the shell 510 of the grain diversion device 500 , and the air suction port of the dust suction fan 700 is connected to the dust removal port 530 . When the dust suction fan 700 is working, negative pressure is formed in the shell 510 , thereby sucking lighter impurities out of the shell 510 .

[0073] In some embodiments of the present invention, the outlet conversion device may include a baffle 521 and a driving device.

[0074] The baffle 521 is arranged in the first grain conveying channel 511. The first grain conveying channel 511 can be a rectangular cross-section channel, and the corresponding baffle 521 can also be a rectangular plate. The shape and size of the baffle 521 can be the same as the inner side of the cross section of the first grain conveying channel 511. At the same time, the size of the baffle 521 is larger than the opening size of the first outlet 513.

[0075] The baffle 521 may be disposed on a side of the first seed passage located at the first outlet 513 close to the second outlet 514 , and a bottom edge of the baffle 521 is rotatably connected to an inner bottom surface of the housing 510 .

[0076] The baffle 521 can rotate between a first position and a second position. When the baffle 521 rotates to the first position, the baffle 521 is perpendicular to the bottom plate of the shell 510, so that the baffle 521 blocks the side of the first outlet 513 close to the second outlet 514. At this time, the second outlet 514 is open, and when the grains reach the second outlet 514, they fall into the grain collection bin 400 through the second outlet 514.

[0077] When the baffle 521 rotates to the second position, the baffle 521 covers the second outlet 514 to block the second outlet 514 . At this time, the first inlet 512 is connected with the first outlet 513 through the first grain conveying channel 511 , and the grains can enter the ear collecting device 150 through the first outlet 513 .

[0078] The driving device may be a handle 522 , which is transmission-connected to the baffle 521 and is used to control the baffle 521 to switch between the first position and the second position.

[0079] 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 them; 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 by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A corn harvester for recovering grains, comprising an ear picking device (120), an ear lifting device (130), a peeling device (140) and an ear collecting device (150) connected in sequence, characterized in that: Also includes: a seed collecting and conveying device (200), wherein the inlet of the seed collecting and conveying device (200) is arranged below the peeling device (140) and is used to receive the seeds dropped by the peeling device (140); A grain lifting and conveying device (300), wherein the inlet of the grain lifting and conveying device (300) is connected to the outlet of the grain collecting and conveying device (200), and the outlet of the grain lifting and conveying device (300) is connected to the inlet of the ear collecting device (150).

2. The grain recovery corn harvester according to claim 1, characterized in that: Also includes: A grain collecting bin (400), wherein the grain collecting bin (400) is arranged between the grain lifting and conveying device (300) and the ear collecting device (150); A grain diverting device (500), the grain diverting device (500) comprising a first grain conveying channel (511), a first inlet (512), a first outlet (513), a second outlet (514) and an outlet conversion device, the first inlet (512), the first outlet (513) and the second outlet (514) are all connected to the first grain conveying channel (511), the outlet conversion device is arranged in the first grain conveying channel (511), the first inlet (512) is connected to the outlet of the grain lifting and conveying device (300), the first outlet (513) is connected to the ear collecting device (150), the second outlet (514) is connected to the grain collecting bin (400), and the outlet conversion device is used to connect one of the first outlet (513) and the second outlet (514) to the first inlet (512).

3. The grain recovery corn harvester according to claim 2, characterized in that: The seed collecting and conveying device (200) comprises: a grain receiving trough body (210), the grain receiving trough body (210) being arranged below the peeling device (140), the top of the grain receiving trough body (210) being open, and the bottom of the grain receiving trough body (210) being provided with an outlet of the grain receiving trough body (210); A first conveying mechanism (220), wherein the first conveying mechanism (220) is arranged at the inner bottom of the grain receiving trough (210), and the first conveying mechanism (220) is used to convey the grains in the grain receiving trough (210) to the outlet of the grain receiving trough (210).

4. The grain recovery corn harvester according to claim 3, characterized in that: The cross section of the grain receiving trough body (210) is an inverted trapezoidal structure.

5. The grain recovery corn harvester according to claim 3, characterized in that: The grain lifting and conveying device (300) comprises: a conveying shell (310), the conveying shell (310) being arranged between the grain receiving tank body (210) and the grain diverting device (500), and a second grain conveying channel being arranged in the conveying shell (310), the second grain conveying channel being respectively connected to the first inlet (512) of the grain diverting device (500) and the outlet of the grain receiving tank body (210); A second conveying mechanism (320), wherein the second conveying mechanism (320) is disposed in the second grain conveying channel and is used to drive the grains in the second grain conveying channel to move from the outlet of the grain receiving trough (210) to the first inlet (512) of the grain diverting device (500).

6. The grain recovery corn harvester according to claim 5, characterized in that: The first conveying mechanism (220) and the second conveying mechanism (320) at least include a screw conveyor, a scraper conveyor or a belt conveyor.

7. The grain recovery corn harvester according to claim 2, characterized in that: The first seed conveying channel (511) is arranged obliquely, and the first outlet (513) and the second outlet (514) are both lower than the first inlet (512).

8. The grain recovery corn harvester according to claim 3, characterized in that: A dust-blowing fan (600) is also provided between the seed receiving trough (210) and the peeling device (140), and the dust-blowing fan (600) is located outside the seed falling area.

9. The grain recovery corn harvester according to claim 2, characterized in that: It also includes a dust suction fan (700) arranged on one side of the grain diversion device (500), the grain diversion device (500) is provided with a dust removal port (530), and the air inlet of the dust suction fan (700) is connected to the dust removal port (530).

10. The grain recovery corn harvester according to claim 2, characterized in that: The outlet conversion device comprises: a baffle (521), the baffle (521) being arranged in the first seed conveying channel (511), and the baffle (521) being rotatably connected to the seed diverting device (500); when the baffle (521) is rotated to a first position, the baffle (521) blocks the first outlet (513) and opens the second outlet (514); when the baffle (521) is rotated to a second position, the baffle (521) blocks the second outlet (514) and opens the first outlet (513); A driving device is drivingly connected to the baffle (521) and is used to drive the baffle (521) to rotate between the first position and the second position.

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