Harvesting machine for oat or barley interplanted with corn

Abstract

The utility model relates to a harvester for oat or barley interplanted with corn, which belongs to the field of agricultural machinery and is characterized in that a middle harvesting device is arranged between a left harvesting device and a right harvesting device, reels are arranged at the front ends of the left harvesting device, the middle harvesting device and the right harvesting device, a header is arranged behind the reels, and the reels are arranged in the middle of the left harvesting device, the middle harvesting device and the right harvesting device. Wheat ear elevators are respectively arranged behind the left harvesting device, the middle harvesting device and the right harvesting device, and the header of the left harvesting device, the header of the middle harvesting device and the header of the right harvesting device are communicated with the auger conveyor through the respective wheat ear elevators. According to the oat or barley harvester interplanted with corn, the three harvesting devices are designed to harvest oat or barley, and the harvesting efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, and particularly relates to an oat or barley harvester interplanted with corn. Background Art

[0002] In the "corn-oat interplanting mode", during the period from the sowing of corn to the harvesting of oats or barley, oats or barley and corn grow together on the same piece of land. Traditional harvesters will damage the corn when harvesting oats or barley, and are not suitable for the "corn-oat interplanting mode". How to harvest oats or barley without damaging the corn has become the primary problem encountered in the "corn-oat interplanting mode". For this reason, the Chinese utility model patent with the application number 202321888073.X discloses a crawler-type oat silage combine harvester. The harvester is provided with two symmetrically arranged harvesting devices at the front of the machine body, a storage hopper is arranged at the rear end above the machine body, a crawler walking mechanism is arranged below the machine body, and spaces for the passage of corn are left between the two harvesting devices and between the two crawler walking mechanisms, so as to harvest oats or barley without damaging the corn, and solve the primary problem of the "corn-oat interplanting mode".

[0003] However, the "crawler-type oat silage combine harvester" disclosed in the current Chinese utility model patent with the application number 202321888073.X has the following deficiencies: (1) There are only two harvesting devices, and only two rows of oats can be harvested in one trip, leaving one row of oats in the middle. If this middle row needs to be harvested, another trip is required, which greatly reduces the harvesting efficiency of oats or barley; (2) The walking mechanism is designed as a crawler type, which not only has a slow driving speed, but also must be disassembled and assembled during long-distance transfer operations, which is very inconvenient and results in low operating efficiency of the harvester; (3) A silk rubbing device is used to rub and crush the harvested oat silage to obtain oat or silage grains. This method of obtaining grains by rubbing is too inefficient.

[0004] In summary, these deficiencies of the current first-generation oat or barley harvesters reduce the overall harvesting efficiency of oats or barley, not only affecting the jointing stage of corn and thus the corn yield, but also causing the quality of oats or barley to decline due to untimely harvesting. Summary of the Utility Model

[0005] Aiming at the above problems, the purpose of the present utility model is to provide an oat or barley harvester interplanted with corn, which is used to solve the problem of low overall harvesting efficiency of oats or barley interplanted with corn at present.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] The utility model discloses an oat or barley harvester interplanted with corn, which comprises a machine body. A screw conveyor is arranged at the front end of the machine body, and a storage hopper is arranged at the rear end of the machine body. A grain crushing device is arranged between the screw conveyor and the storage hopper. The grain crushing device is configured with an air conveying device. The air outlet of the air conveying device is connected upward to an air conveying pipe, and the discharge port of the air conveying pipe faces the storage hopper. On the left and right sides in front of the machine body, a left harvesting device and a right harvesting device are respectively arranged. There is a space between the left harvesting device and the right harvesting device, and this space is used for the corn planted between oats or barley in the corn-oat interplanting mode.

[0008] An intermediate harvesting device is arranged in the middle between the left harvesting device and the right harvesting device. A reel is arranged at the front ends of the left harvesting device, the intermediate harvesting device and the right harvesting device. A cutting table is configured behind the reel. Wheat ear elevators are respectively configured behind the left harvesting device, the intermediate harvesting device and the right harvesting device. The cutting tables of the left harvesting device, the intermediate harvesting device and the right harvesting device are communicated with the screw conveyor through their respective wheat ear elevators.

[0009] In the corn-oat interplanting mode, in the planting areas corresponding to the widths of the reels at the front ends of the left harvesting device, the intermediate harvesting device and the right harvesting device, one ridge of oats or barley is respectively pre-planted. In the planting areas corresponding to the gaps between the intermediate harvesting device and the left harvesting device and between the intermediate harvesting device and the right harvesting device, one ridge of corn is respectively pre-planted, thereby forming an interplanting mode in which one ridge of oats or barley is spaced from one ridge of corn.

[0010] During the process of the harvester harvesting oats or barley in the corn-oat interplanting mode, the reels of the left harvesting device, the intermediate harvesting device and the right harvesting device respectively face one ridge of oats or barley. After the harvester travels one trip, three ridges of oats or barley can be harvested simultaneously, and the gaps between the intermediate harvesting device and the left harvesting device and between the intermediate harvesting device and the right harvesting device respectively just pass through one ridge of corn between oats or barley.

[0011] Further, when the harvester is used to harvest oats or barley in the corn-oat interplanting mode, the reels of the left harvesting device, the intermediate harvesting device and the right harvesting device respectively send the oats or barley to the cutting table. The cutting table harvests the oats or barley, and the harvested oats or barley are conveyed into the screw conveyor through the wheat ear elevator.

[0012] The oats or barley harvested by the left harvesting device, the intermediate harvesting device and the right harvesting device are gathered together in the screw conveyor.

[0013] The grain crushing device crushes the grains of harvested oats or barley and cuts the straw, obtaining a mixture of chopped oats or barley straw and crushed oats or barley grains.

[0014] The pneumatic conveying device blows out the mixture of chopped oats or barley straw and crushed oats or barley grains and drops it into the storage hopper, realizing the harvesting of oats or barley interplanted with corn.

[0015] Furthermore, the machine body includes a chassis with a height of not less than 1.2 meters; the auger conveyor and the storage hopper are respectively located at both ends of the chassis.

[0016] Furthermore, four wheels are configured under the chassis, where two front wheels are located at both ends of the auger conveyor, and two rear wheels are located directly below the storage hopper.

[0017] Furthermore, among the four wheels under the chassis, two front wheels are triangular crawler wheels.

[0018] Furthermore, the grain crushing device includes a flattening mechanism and a forage chopping mechanism. The flattening mechanism includes flattening rollers, which are arranged behind the auger conveyor; the forage chopping mechanism includes a cutter head, on which a set of fixed blades is arranged, and four sets of moving blades are arranged around the fixed blades. Among them, the four sets of moving blades form the pneumatic conveying device, and when the four sets of moving blades rotate, a forward blowing air flow is formed.

[0019] The flattening mechanism flattens the straw of harvested oats or barley and the grains on the straw through the flattening rollers, obtaining flattened oats or barley straw and crushed oats or barley grains.

[0020] The forage chopping mechanism cuts the flattened oats or barley straw through the fixed blades and the moving blades, obtaining a mixture of chopped oats or barley straw and crushed oats or barley grains.

[0021] The four sets of moving blades rotate to form a forward blowing air flow, blowing the mixture of chopped oats or barley straw and crushed oats or barley grains into the pneumatic conveying pipe.

[0022] Furthermore, a pneumatic conveying pipe rotating mechanism capable of 360-degree rotation is arranged on the pneumatic conveying pipe.

[0023] Furthermore, the forage chopping mechanism is configured with a forage chopper power mechanism.

[0024] Furthermore, the left harvesting device, the middle harvesting device, and the right harvesting device are arranged side by side in sequence from left to right; the reel wheels of the left harvesting device, the middle harvesting device, and the right harvesting device are respectively arranged in front of the body; the reel wheels and the cutting tables of the left harvesting device, the middle harvesting device, and the right harvesting device are arranged side by side respectively; the ear elevators of the left harvesting device, the middle harvesting device, and the right harvesting device are arranged in parallel with each other.

[0025] Furthermore, the auger conveyor includes an auger shaft, an auger housing, and a drive sprocket. A rotating fan blade is wound around the auger shaft. The auger shaft is arranged inside the auger housing, and the drive sprocket is arranged outside the end of the auger shaft and fixedly connected to the auger shaft.

[0026] Furthermore, a cab is configured in front of the body. The cab is equipped with a front and rear image display screen. The front and rear image display screen is equipped with a front camera and a rear camera, which are respectively used for displaying the images in front of and behind the harvester during the driving process; a navigation and positioning system is also configured inside the front and rear image display screen, which is used for displaying the position where the harvester is located.

[0027] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0028] (1) An oat or barley harvester interplanted with corn disclosed by the present utility model adds another harvesting device in the middle of the original two harvesting devices, spanning three oat ridges. While harvesting two rows of oats in one trip, it also harvests the middle row of oats that originally fell, achieving the harvesting of three rows of oats in one trip. This not only improves the harvesting efficiency by one-third at a time but also saves the time required to add another trip for re-harvesting the middle row of oats. An oat or barley harvester interplanted with corn disclosed by the present utility model harvests oats or barley by designing three harvesting devices, greatly improving the harvesting efficiency.

[0029] (2) An oat or barley harvester interplanted with corn disclosed by the present utility model cancels the original crawler wheels and changes to four-wheel drive. Preferably, the two front wheels are triangular crawler wheels, which not only retain the advantages of the crawler type in terms of stability but also greatly improve the low operation efficiency.

[0030] (3) The oat or barley harvester interplanted with corn disclosed by the present utility model improves the original silk rubbing device into a grain crushing device. The grain crushing device includes a flattening mechanism and a hay cutting mechanism. The flattening mechanism flattens the straws of the harvested oats or barley to obtain flattened oat or barley straws. The hay cutting mechanism cuts the flattened oat or barley straws to obtain a mixture of chopped straws and oat or barley grains. The mixture of chopped straws and oat or barley grains is blown by an air delivery device, and the oat or barley grains fall into a storage hopper, realizing the harvesting of oats or barley interplanted with corn and improving the processing efficiency of oat or barley grains.

[0031] (4) The oat or barley harvester interplanted with corn disclosed by the present utility model is equipped with a cab in front of the machine body. The cab is equipped with front and rear image display screens. The front and rear image display screens are equipped with a front camera and a rear camera respectively, which are used to display the images in front of and behind the harvester during driving; a navigation and positioning system is also configured in the front and rear image display screens, which is used to display the position where the harvester is located. During the operation of controlling the harvesting by the operator in the cab, it is possible to observe whether the corn is damaged by the harvester through the navigation and positioning system and the front and rear images, thereby preventing damage to the corn seedlings.

[0032] (5) As one of the key technologies of the "corn-oat interplanting mode", the oat or barley harvester interplanted with corn disclosed by the present utility model provides equipment support for agricultural machinery for the development and growth of the "corn-oat interplanting mode" in this black soil area in Northeast China, and thus lays a foundation for the "corn-oat interplanting mode" to hopefully bring new vitality to this black soil area in Northeast China again and gradually attract more and more technical personnel to conduct research. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is the front three-dimensional view of the oat or barley harvester interplanted with corn provided in Embodiment 1 of the present utility model;

[0034] Figure 2 is the axonometric view of one perspective of the oat or barley harvester interplanted with corn provided in Embodiment 1 of the present utility model;

[0035] Figure 3 is the axonometric view of another perspective of the oat or barley harvester interplanted with corn provided in Embodiment 1 of the present utility model;

[0036] Figure 4 is the top view of the oat or barley harvester interplanted with corn provided in Embodiment 1 of the present utility model;

[0037] Figure 5 is the side view of the oat or barley harvester interplanted with corn provided in Embodiment 1 of the present utility model.

[0038] Description of the reference numerals in the drawings:

[0039] 1 - Body, 10 - Chassis, 11 - Screw conveyor, 12 - Storage hopper; 100 - Diesel generator;

[0040] 2 - Grain crushing device, 20 - Pneumatic conveying device, 201 - Pneumatic conveying pipe, 202 - Pneumatic conveying pipe rotating mechanism; 21 - Flattening roller, 22 - Power mechanism of the straw chopper;

[0041] 301 - Reel, 302 - Cutting table; 31 - Left harvesting device, 32 - Right harvesting device, 33 - Intermediate harvesting device, 34 - Ear elevator;

[0042] 4 - Triangular crawler wheel;

[0043] 5 - Cab. Detailed implementation manners

[0044] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be fully conveyed to those skilled in the art.

[0045] When harvesting oats or barley in the middle and late June, the corn in the Northeast Black Soil Region has not entered the jointing stage yet. If the harvesting efficiency of oats or barley is too low, it will not only affect the jointing stage of the corn and thus the corn yield, but also lead to a decline in the quality of oats or barley. Therefore, the allowable harvesting period for oats or barley is very short, usually concentrated from June 10th to June 20th, that is to say, oats or barley only have a harvesting period of more than ten days. Therefore, how to improve the harvesting efficiency of oats or barley is the technical problem to be solved by this utility model. First, add another harvesting device in the middle of the original two harvesting devices, which straddles three oat ridges. While harvesting two rows of oats in one trip, it also harvests the middle row of oats that originally fell, achieving the harvesting of three rows of oats in one trip. This not only improves the harvesting efficiency by one-third at a time, but also saves the time required to drive another trip for re-harvesting the middle row of oats. Second, cancel the original crawler wheels and change to four-wheel drive. Preferably, the two front wheels are triangular crawler wheels, which not only retain the advantages of the crawler type in terms of stability, but also greatly improve the low operating efficiency. Finally, improve the original silk rubbing device into a grain crushing device. The grain crushing device includes a flattening mechanism and a hay cutting mechanism. The flattening mechanism flattens the straw of the harvested oats or barley to obtain the flattened straw of oats or barley. The hay cutting mechanism cuts the flattened straw of oats or barley to obtain a mixture of chopped straw and oats or barley grains. The mixture of chopped straw and oats or barley grains is blown by the pneumatic conveying device, and the oats or barley grains fall into the storage hopper, realizing the harvesting of oats or barley intercropped with corn and improving the processing efficiency of oats or barley grains.

[0046] Embodiment 1: An oat or barley harvester intercropped with corn

[0047] Embodiment 1 of this utility model provides an oat or barley harvester intercropped with corn, and its structure will be described in detail below with reference to the accompanying drawings.

[0048] Reference Figures 1 to 5, This harvester is used to harvest oats or barley in the maize intercropping mode, including a machine body 1. A screw conveyor 11 is arranged at the front end of the machine body 1, and a storage hopper 12 is arranged at the rear end of the machine body 1. A grain crushing device 2 is arranged between the screw conveyor 11 and the storage hopper 12. The grain crushing device 2 is configured with an air conveying device 20. The air outlet of the air conveying device 20 is connected upward to an air conveying pipe 201, and the discharge port of the air conveying pipe 201 faces the storage hopper 12. On the left and right sides in front of the machine body 1, a left harvesting device 31 and a right harvesting device 32 are respectively arranged. There is a space between the left harvesting device 31 and the right harvesting device 32 for the maize planted between oats or barley in the maize intercropping mode. The harvester disclosed in the present utility model has made the following improvements in view of the deficiency in restricting the efficiency of the "crawler-type oat silage combine harvester" disclosed in the Chinese utility model patent with the application number 202321888073.X:

[0049] First, an intermediate harvesting device 33 is arranged between the left harvesting device 31 and the right harvesting device 32. A reel 301 is arranged at the front ends of the left harvesting device 31, the intermediate harvesting device 33 and the right harvesting device 32. A cutting table 302 is configured behind the reel 301. Ear elevators 34 are respectively configured behind the left harvesting device 31, the intermediate harvesting device 33 and the right harvesting device 32. The cutting tables 302 of the left harvesting device 31, the intermediate harvesting device 33 and the right harvesting device 32 are connected to the screw conveyor 11 through their respective ear elevators 34.

[0050] It should be noted that the "maize intercropping mode" adopts the "4090" mode, that is, the land is divided into rows with 40 cm and 90 cm. Two rows of maize are planted in the 40 cm area to form a ridge, and four rows of oats are planted in the middle 40 cm of the 90 cm area to form a ridge. A gap of 25 cm can also be reserved between oats and maize for later harvesting.

[0051] In the maize intercropping mode, one ridge of oats or barley is respectively pre-planted in the planting areas corresponding to the width ranges of the reels 301 at the front ends of the left harvesting device 31, the intermediate harvesting device 33 and the right harvesting device 32. One ridge of maize is respectively pre-planted in the planting areas corresponding to the gaps between the intermediate harvesting device 33 and the left harvesting device 31 and between the intermediate harvesting device 33 and the right harvesting device 32, thus forming an intercropping planting mode with one ridge of oats or barley and one ridge of maize alternating.

[0052] Specifically, the width range of the reels 301 at the front ends of the left harvesting device 31, the intermediate harvesting device 33 and the right harvesting device 32 is 57 cm.

[0053] During the process of harvesting oats or barley in the maize intercropping mode by this harvester, the reel 301 of the left harvesting device 31, the middle harvesting device 33, and the right harvesting device 32 are respectively facing one ridge of oats or barley. After the harvester travels one trip, three ridges of oats or barley can be harvested simultaneously. Moreover, the gap between the middle harvesting device 33 and the left harvesting device 31 and the gap between the middle harvesting device 33 and the right harvesting device 32 respectively just pass through one ridge of maize between the oats or barley, so as to avoid damaging the maize.

[0054] Specifically, the body 1 includes a chassis 10, and the auger conveyor 11 and the storage hopper 12 are respectively located at both ends of the chassis 10.

[0055] In order to facilitate the left harvesting device 31, the middle harvesting device 33, and the right harvesting device 32 to collect the harvested oats or barley into the auger conveyor 11, the auger conveyor 11 is horizontally arranged at the front end of the chassis 10, and the auger conveyor 11 is communicated with the ear elevators 34 corresponding to the left harvesting device 31, the middle harvesting device 33, and the right harvesting device 32.

[0056] Oats or barley in the Northeast black soil are sown in freezing soil in March and harvested in the middle and late June. When oats or barley are intercropped with maize, from the time of sowing maize in May to the time of harvesting oats or barley in the middle and late June, oats or barley and maize grow together on the same piece of land. When harvesting oats or barley, it is necessary to ensure the harvesting of oats or barley without damaging the maize. When harvesting oats or barley in the middle and late June, the maize has not entered the jointing stage, and their heights are about the same, between about 1 meter and 1.2 meters.

[0057] In addition to not damaging the maize in terms of row spacing, the chassis 10 of this harvester cannot be too low, otherwise it will damage the maize, that is, it is required that the height of the chassis 10 is higher than that of the maize when harvesting oats or barley. Since the maximum height of the maize is 1.2 meters when harvesting oats or barley, the height of the chassis 10 is not less than 1.2 meters. As a specific implementation manner, the height of the chassis 10 of this harvester is 1370 cm.

[0058] Second, in order to improve the operation efficiency, the original crawler wheels are cancelled, and four wheels are configured under the chassis 10. Among them, two front wheels are located at both ends of the auger conveyor 11, and two rear wheels are located directly below the storage hopper 12.

[0059] In order to ensure stability, among the four wheels under the chassis 10, two front wheels are designed as triangular crawler wheels 4.

[0060] As common general knowledge, the body 1 of the harvester is also equipped with a diesel generator 100 to provide power for the four wheels under the chassis 10, and the diesel generator 100 is equipped with a water tank as a radiator.

[0061] Third, the processing efficiency of oat or barley grains is improved. The present utility model improves the original silk rubbing device into a grain crushing device 2. The grain crushing device 2 includes a flattening mechanism and a hay cutting mechanism. The flattening mechanism includes flattening rollers 21, and the flattening rollers 21 are arranged behind the auger conveyor 11. The hay cutting mechanism includes a cutter head, a set of fixed blades are arranged on the cutter head, and four sets of moving blades are arranged around the fixed blades. Among them, the four sets of moving blades form the pneumatic conveying device 20. When the four sets of moving blades rotate, a forward blowing air flow is formed.

[0062] Further, a pneumatic feed pipe rotating mechanism 202 capable of 360-degree rotation is arranged on the pneumatic feed pipe 201.

[0063] In order to provide power for the hay cutting mechanism, the hay cutting mechanism is equipped with a hay cutter power mechanism 21.

[0064] As a specific implementation manner, the left harvesting device 31, the middle harvesting device 33 and the right harvesting device 32 are arranged side by side in sequence from left to right; the reel wheels 301 of the left harvesting device 31, the middle harvesting device 33 and the right harvesting device 32 are respectively arranged in front of the body 1; the reel wheels 301 and the cutting tables 302 of the left harvesting device 31, the middle harvesting device 33 and the right harvesting device 32 are respectively arranged side by side; the ear elevators 34 of the left harvesting device 31, the middle harvesting device 33 and the right harvesting device 32 are arranged parallel to each other.

[0065] As a specific implementation manner, the auger conveyor 11 includes an auger shaft, an auger shell and a driving sprocket. A rotating fan blade is wound around the auger shaft. The auger shaft is arranged inside the auger shell, and the driving sprocket is arranged outside the end of the auger shaft and fixedly connected to the auger shaft.

[0066] In order to prevent damage to corn seedlings, a cab 5 is arranged in front of the body 1. The cab 5 is equipped with a front and rear image display screen. The front and rear image display screen is equipped with a front camera and a rear camera, which are respectively used to display the images in front of and behind the harvester during driving; a navigation and positioning system is arranged inside the front and rear image display screen, which is used to display the position where the harvester is located. During the process of operating and harvesting by the operator in the cab 5, whether the corn is damaged by the harvester can be observed through the navigation and positioning system and the front and rear images, so as to prevent damage to the corn seedlings.

[0067] Embodiment 2: A production method of silage

[0068] Embodiment 2 provides a method for producing silage feed, comprising the following steps:

[0069] Step A: Harvest oats or barley in the maize-intercropping mode by using the oats or barley harvester intercropped with maize in Embodiment 1 to obtain a mixture of chopped oats or barley straw and crushed oats or barley grains, comprising the following steps:

[0070] Step A1: The reel 301 of the left harvesting device 31, the middle harvesting device 33 and the right harvesting device 32 respectively feeds oats or barley to the cutting table 302, and the cutting table 302 harvests the oats or barley. The harvested oats or barley are conveyed into the auger conveyor 11 through the ear elevator 34;

[0071] Step A2: The oats or barley harvested by the left harvesting device 31, the middle harvesting device 33 and the right harvesting device 32 are gathered together in the auger conveyor 11;

[0072] Step A3: The grain crushing device 2 crushes the grains of the harvested oats or barley and cuts the straw, obtaining a mixture of chopped oats or barley straw and crushed oats or barley grains;

[0073] Step A4: The pneumatic conveying device 20 blows out the mixture of chopped oats or barley straw and crushed oats or barley grains and makes it fall into the storage hopper 12, realizing the harvest of oats or barley intercropped with maize.

[0074] Among them, Step A3 comprises the following steps:

[0075] Step A31: The flattening mechanism flattens the straw of the harvested oats or barley and the grains on the straw through the flattening rollers 21, obtaining flattened oats or barley straw and crushed oats or barley grains;

[0076] Step A32: The hay cutting mechanism cuts the flattened oats or barley straw through the fixed knife and the moving knife, obtaining a mixture of chopped oats or barley straw and crushed oats or barley grains;

[0077] Step A33: The four groups of moving knives rotate to form a forward blowing air flow, blowing the mixture of chopped oats or barley straw and crushed oats or barley grains into the pneumatic conveying pipe 201.

[0078] Step B: The mixture of chopped oats or barley straw and crushed oats or barley grains is subjected to wrapping and sealing and fermentation treatment to form silage feed.

[0079] Among them, the silage feed is sold to livestock farms for feeding cattle and sheep in the livestock farms.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oat or barley harvester interplanted with corn, comprising a machine body (1). A screw conveyor (11) is provided at the front end of the machine body (1), and a storage hopper (12) is provided at the rear end of the machine body (1). A grain crushing device (2) is provided between the screw conveyor (11) and the storage hopper (12). The grain crushing device (2) is configured with an air conveying device (20). The air outlet of the air conveying device (20) is connected upward to an air conveying pipe (201), and the discharge port of the air conveying pipe (201) faces the storage hopper (12). On the left and right sides in front of the machine body (1), a left harvesting device (31) and a right harvesting device (32) are respectively provided. There is a space between the left harvesting device (31) and the right harvesting device (32) for the corn planted between oats or barley in the corn-oat interplanting mode. It is characterized in that, An intermediate harvesting device (33) is provided in the middle between the left harvesting device (31) and the right harvesting device (32). A reel (301) is provided at the front ends of the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32). A cutting table (302) is configured behind the reel (301). Ear elevators (34) are respectively configured behind the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32). The cutting tables (302) of the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32) are communicated with the screw conveyor (11) through their respective ear elevators (34); In the corn-oat interplanting mode, a ridge of oats or barley is respectively pre-planted in the planting areas corresponding to the width ranges of the reels (301) at the front ends of the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32). A ridge of corn is respectively pre-planted in the planting areas corresponding to the gaps between the intermediate harvesting device (33) and the left harvesting device (31) and between the intermediate harvesting device (33) and the right harvesting device (32), thereby forming an interplanting mode in which a ridge of oats or barley is spaced from a ridge of corn; During the process of the harvester harvesting oats or barley in the corn-oat interplanting mode, the reels (301) of the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32) respectively face a ridge of oats or barley. After the harvester travels one trip, three ridges of oats or barley can be harvested simultaneously, and the gaps between the intermediate harvesting device (33) and the left harvesting device (31) and between the intermediate harvesting device (33) and the right harvesting device (32) respectively just pass through a ridge of corn between oats or barley.

2. The harvester according to claim 1, characterized in that, When using this harvester to harvest oats or barley in the maize intercropping mode, the reel (301) of the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32) respectively send the oats or barley to the cutting table (302), and the cutting table (302) harvests the oats or barley. The harvested oats or barley are transported into the auger conveyor (11) through the ear elevator (34); The oats or barley harvested by the left harvesting device (31), the intermediate harvesting device (33) and the right harvesting device (32) are gathered together in the auger conveyor (11); The grain crushing device (2) crushes the grains of the harvested oats or barley and cuts the straw, obtaining a mixture of chopped oats or barley straw and crushed oats or barley grains; The pneumatic conveying device (20) blows out the mixture of chopped oats or barley straw and crushed oats or barley grains and drops it into the storage hopper (12), realizing the harvesting of oats or barley intercropped with maize.

3. The harvester according to claim 1, wherein, The machine body (1) includes a chassis (10), and the height of the chassis (10) is not less than 1.2 meters; The auger conveyor (11) and the storage hopper (12) are respectively located at both ends of the chassis (10).

4. The harvester according to claim 3, wherein, Four wheels are arranged below the chassis (10). Among them, two front wheels are located at both ends of the auger conveyor (11), and two rear wheels are located directly below the storage hopper (12).

5. The harvester according to claim 4, wherein, Among the four wheels below the chassis (10), two front wheels are triangular crawler wheels (4).

6. The harvester according to claim 1, wherein, The grain crushing device (2) includes a flattening mechanism and a straw chopping mechanism, The flattening mechanism includes flattening rollers (21), and the flattening rollers (21) are arranged behind the auger conveyor (11); The straw chopping mechanism includes a cutter head, a set of fixed blades are arranged on the cutter head, and four sets of moving blades are arranged around the fixed blades. Among them, the four sets of moving blades form the pneumatic conveying device (20). When the four sets of moving blades rotate, a forward blowing air flow is formed; The flattening mechanism flattens the straw and the grains on the straw of the harvested oats or barley through the flattening rollers (21), obtaining flattened oats or barley straw and crushed oats or barley grains; The straw chopping mechanism cuts the flattened oats or barley straw through the fixed blades and the moving blades, obtaining a mixture of chopped oats or barley straw and crushed oats or barley grains; The four sets of moving blades rotate to form a forward blowing air flow, blowing the mixture of chopped oats or barley straw and crushed oats or barley grains into the pneumatic conveying pipe (201).

7. The harvester according to claim 1, wherein, A pneumatic conveying pipe rotating mechanism (202) capable of rotating 360 degrees is arranged on the pneumatic conveying pipe (201).

8. The harvester according to claim 1, wherein the left harvesting device (31), the middle harvesting device (33) and the right harvesting device (32) are arranged side by side in sequence from left to right; the reelers (301) of the left harvesting device (31), the middle harvesting device (33) and the right harvesting device (32) are respectively arranged in front of the body (1); the reelers (301) and the cutting tables (302) of the left harvesting device (31), the middle harvesting device (33) and the right harvesting device (32) are respectively arranged side by side; the ear elevators (34) of the left harvesting device (31), the middle harvesting device (33) and the right harvesting device (32) are arranged parallel to each other.

9. The harvester according to claim 1, wherein the auger conveyor (11) includes an auger shaft, an auger housing and a driving sprocket. A rotating fan blade is wound around the auger shaft. The auger shaft is arranged in the auger housing, and the driving sprocket is arranged outside the end of the auger shaft and fixedly connected to the auger shaft.

10. The harvester according to claim 1, wherein a cab (5) is arranged in front of the body (1), and the cab (5) is provided with a front and rear image display screen, the front and rear image display screen is provided with a front camera and a rear camera, which are respectively used for displaying the images in front of and behind the harvester during driving; a navigation and positioning system is further arranged in the front and rear image display screen, which is used for displaying the position where the harvester is located.

Images