CN217445870U - Multi-crop harvester - Google Patents

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a multi-crop harvester, which comprises a harvesting vehicle body; the header is arranged at the front end of the harvesting vehicle body and is used for harvesting the whole crop; the threshing and separating mechanism is used for threshing and separating the crops harvested by the header; a gap bridge for conveying the crop harvested by the header to the threshing and separating mechanism; a stalk-chopping throwing mechanism for chopping and throwing stalks into a throwing barrel; and the stalk collecting box is used for receiving the broken stalks thrown out of the throwing barrel. The beneficial effects of the utility model are that: corn stalks can be harvested simultaneously under the condition of harvesting corn grains, and the silage harvesting can be realized only by replacing the corresponding concave plate; the whole corn is harvested, so that the seeds can be effectively buffered with the roller concave plate in the threshing and separating process, and the crushing is reduced; can realize the harvest of wheat.

Description

Multi-crop harvester

Technical Field

The utility model relates to an agricultural machinery technical field especially relates to a many crops harvester.

Background

At present, domestic harvesting machines are various but have single functions, and although parts of harvested wheat and harvested corn grains are universal, the harvesting effect is poor. Common corn harvesting machines in the prior art can be divided into a corn seed machine, a corn stalk and ear harvester and a corn silage machine, the corn seed machine can harvest corn and can harvest wheat, but the corn harvested by the corn seed machine is high in breakage, and the corn straws cannot be recycled, and when the corn seeds are harvested, the corn straws are all discharged into the field, so that a large amount of waste of resources is caused; the corn stalk and ear harvester can harvest corn and corn stalks, but has poor positive electrode reliability and can not harvest wheat; the corn silage machine can effectively utilize corn straws, but only can realize the harvesting of the corn silage, and cannot harvest the corn and the wheat. At present, the yield of a manipulator of the silage harvester is higher, but the fault of the whole silage harvester is higher, and the harvested crops are single. Users need to purchase separate harvesting machines for harvesting wheat, corn kernels and corn silage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a multi-crop harvester is provided, can be in operation season of difference results wheat, maize silage, maize seed grain and can the maize yellow corn silage of results simultaneously, the use face is wide, reduces the cost that the user reaped different crops.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a multi-crop harvester comprises a harvesting vehicle body;

the header is arranged at the front end of the harvesting vehicle body and is used for harvesting the whole crop;

the threshing and separating mechanism is mounted on the harvesting vehicle body and is used for threshing and separating crops harvested by the header;

the gap bridge is arranged at the front part of the harvesting vehicle body, is arranged between the header and the threshing and separating mechanism and is used for conveying crops harvested by the header to the threshing and separating mechanism;

the stalk chopping and throwing mechanism is arranged on the harvesting vehicle body, the input end of the stalk chopping and throwing mechanism is communicated with the output end of the threshing and separating mechanism, and the output end of the stalk chopping and throwing mechanism is communicated with the input end of the throwing cylinder and is used for throwing the stalks into the throwing cylinder;

the stalk collecting box is arranged on the harvesting vehicle body, and the output end of the throwing cylinder faces the inner cavity of the stalk collecting box and is used for receiving the broken stalks thrown out from the throwing cylinder.

The utility model has the advantages that: corn stalks can be harvested simultaneously under the condition of harvesting corn grains, and the corn stalks are popular with animal farms after being kneaded by a roller, so that the income of growers and manipulators is greatly improved; the silage harvester can harvest silage by only replacing the corresponding concave plate, the harvested silage materials are finer, the silage harvester is more popular in animal farms, and the failure rate of the whole silage harvester is lower than that of a pure silage harvester; the whole corn is harvested, so that the seeds can be effectively buffered with the roller concave plate in the threshing and separating process, and the crushing is reduced; the harvesting of wheat can be realized only by replacing the header and the concave plate and disassembling the throwing cylinder; the harvest period of the user is greatly prolonged, and meanwhile, the income of the grower is also greatly improved.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the input end of the throwing cylinder is rotatably connected with the output end of the stalk throwing device.

The beneficial effect of adopting the above further scheme is: the input end of the throwing cylinder is rotationally connected with the output end of the stalk throwing device, and the throwing cylinder can be rotated or the throwing height of the throwing cylinder can be changed.

Further, the threshing separation mechanism comprises a tangential flow roller, an axial flow roller, a concave plate and a seed conveying mechanism, wherein the tangential flow roller and the axial flow roller are installed on the harvesting vehicle body, the input end of the tangential flow roller is communicated with the output end of the gap bridge, the output end of the tangential flow roller is communicated with the input end of the axial flow roller, the output end of the axial flow roller is communicated with the input end of the stalk chopping and throwing mechanism, the concave plate is fixedly arranged at the bottom of the axial flow roller, and the seed conveying mechanism is arranged vertically below the concave plate and used for conveying seeds passing through the concave plate to a grain collecting mechanism installed on the harvesting vehicle body.

The beneficial effect of adopting the further scheme is that: the threshing and separating mechanism can effectively realize the separation of stems and ears, the concave plate is arranged at the bottom of the axial flow roller, and grains can be effectively buffered with the concave plate in the threshing and separating process, so that the crushing is reduced.

Further, the stalk chopping and throwing mechanism comprises a stalk chopper and a stalk thrower, the stalk chopper is arranged on the harvesting vehicle body, the input end of the stalk chopper is communicated with the grass discharge port of the threshing and separating mechanism through a channel, and the stalk chopper is used for chopping stalks discharged from the threshing and separating mechanism; the stalk thrower is mounted on the harvesting wagon body, an input end of the stalk thrower is communicated with an output end of the stalk chopper, an output end of the stalk thrower is communicated with an input end of a throwing barrel, and the stalk thrower is used for throwing stalks chopped by the stalk chopper into the throwing barrel.

The beneficial effect of adopting the further scheme is that: the stalk chopping and throwing mechanism adopts a stalk chopper and a stalk throwing device which are separated, so that the chopping and throwing are respectively realized, and the chopping effect and the throwing effect are ensured.

Further, the seed material conveying mechanism is a pushing auger device or a shaking plate.

The beneficial effect of adopting the further scheme is that: the seed material conveying mechanism adopts a pushing auger device or a shaking plate, so that the seed material is conveniently conveyed.

Further, the stalk chopper includes that fixed mounting establishes at the shredding shell, rotation that reaps on the automobile body the rotation section of thick bamboo in the shredding shell and be used for the drive rotate a section of thick bamboo axial pivoted first driving piece, the input of shredding shell pass through the passageway with threshing and separating mechanism's row grass mouth intercommunication, the output of shredding shell with the input intercommunication of stalk throwing ware, it is equipped with a plurality of first cutters that are used for cutting the stalk to rotate to fix on the periphery wall of a section of thick bamboo.

The beneficial effect of adopting the above further scheme is: the axial rotation of a section of thick bamboo is rotated in drive through first driving piece to drive the quick rotation of first sword on the rotation section of thick bamboo periphery wall, realize the high-efficient shredding to the stem stalk.

Further, the stalk thrower is including fixed establishing throwing on reaping the automobile body send the casing, rotate and establish throwing in send a section of thick bamboo and be used for the drive throwing send a section of thick bamboo axial pivoted second driving piece, the input of throwing sending the casing with the output intercommunication of shredding the casing, the output of throwing sending the casing with throw the input intercommunication of a section of thick bamboo, it is equipped with a plurality of blades of shedding to throw on sending the peripheral wall of a section of thick bamboo fixedly.

The beneficial effect of adopting the further scheme is that: the axial rotation of throwing a section of thick bamboo is sent through the drive of second driving piece to the rotation of throwing the blade is driven, and is garrulous to the stalk after the breakage produces sufficient throwing effort, thereby realizes sending into the stalk collecting box through throwing a section of thick bamboo with the stalk breakage.

Furthermore, the stalk chopping and throwing mechanism comprises a chopping and throwing shell fixedly arranged on the reaping vehicle body, a rotating shaft rotatably arranged on the chopping and throwing shell and a third driving piece for driving the rotating shaft to axially rotate, wherein the input end of the chopping and throwing shell is communicated with the grass discharge port of the threshing and separating mechanism through a channel, and the output end of the chopping and throwing shell is communicated with the input end of the throwing cylinder; the fixed mount that is equipped with the interval setting in the pivot, it is adjacent evenly be equipped with a plurality of second cutters between the mount, the second cutter with the periphery wall fixed connection of mount, the second cutter is fixed towards the inboard of pivot and is equipped with the throwing of slope setting and send the board.

The beneficial effect of adopting the further scheme is that: the chopping and the throwing are integrated, and the chopping and the throwing of the materials are simultaneously carried out, so that the installation space is saved, and the cost is reduced.

Furthermore, the quantity of mount is two, two the mount is established respectively the both ends of pivot, it is a plurality of the second cutter interval is established two on the periphery wall of mount.

The beneficial effect of adopting the further scheme is that: the installation of second cutter and throwing board is realized to two mounts, simple structure.

Furthermore, the number of the fixing frames is three, the three fixing frames are arranged at intervals along the length direction of the rotating shaft, the second cutters are uniformly and fixedly arranged between every two adjacent fixing frames, so that two groups of second cutters are formed, and the two groups of second cutters are arranged in a staggered mode.

The beneficial effect of adopting the further scheme is that: the fixing frames are arranged at three intervals, the number of the second cutters and the number of the throwing plates are increased, and the second cutters arranged in a staggered mode can have higher cutting efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is an installation diagram of the rotating drum and the first cutter according to an embodiment of the present invention;

fig. 3 is an installation schematic diagram of a throwing barrel and a throwing blade in the first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second embodiment of the present invention;

fig. 5 is an installation diagram of a second cutter and a throwing plate according to a second embodiment of the present invention;

fig. 6 is an installation diagram of a second cutter and a throwing plate in the third embodiment of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. harvesting the vehicle body; 2. a header; 3. bridging; 4. a throwing cylinder; 5. a stalk collecting box; 6. a stalk chopper; 61. chopping the shell; 62. a rotating cylinder; 63. a first cutter; 7. a stalk throwing device; 71. Throwing the shell; 72. a throwing cylinder; 73. throwing the blades; 8. a tangential flow roller; 9. an axial flow drum; 10. A concave plate; 11. a seed material conveying mechanism; 12. chopping and throwing the shell; 13. a rotating shaft; 14. a fixed mount; 15. A second cutter; 16. and (4) throwing the plate.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example one

As shown in fig. 1, the embodiment of the present invention includes a harvesting vehicle body 1;

the header 2 is arranged at the front end of the harvesting vehicle body 1, the header 2 is used for harvesting the whole crop, and in the application, the header 2 can adopt the existing sorghum header 2, a wheat header 2 with a large reel and the like;

the threshing and separating mechanism is arranged on the harvesting vehicle body 1 and is used for threshing and separating crops harvested by the header 2;

the gap bridge 3 is arranged at the front part of the harvesting vehicle body 1, the gap bridge 3 is arranged between the harvesting platform 2 and the threshing and separating mechanism, the gap bridge 3 is used for conveying crops harvested by the harvesting platform 2 to the threshing and separating mechanism, and in the embodiment, the gap bridge 3 adopts a chain cake type conveying device;

the stalk cutting and throwing mechanism is arranged on the harvesting vehicle body 1, the input end of the stalk cutting and throwing mechanism is communicated with the output end of the threshing and separating mechanism, and the output end of the stalk cutting and throwing mechanism is communicated with the input end of the throwing cylinder 4 and is used for cutting stalks and throwing the stalks into the throwing cylinder 4;

the stalk collecting box 5 is installed on the harvesting vehicle body 1, and the output end of the throwing cylinder 4 faces the inner cavity of the stalk collecting box 5 and is used for receiving the broken stalks thrown out of the throwing cylinder 4. The utility model discloses an in the embodiment, stem stalk collecting box 5 can set up on reaping automobile body 1, perhaps sets up on other automobile bodies, adopts the mode with the car to reap.

Specifically, the stalk chopping and throwing mechanism comprises a stalk chopper 6 and a stalk throwing device 7, wherein the stalk chopper 6 is arranged on the harvesting vehicle body 1, the input end of the stalk chopper 6 is communicated with the straw discharge port of the threshing and separating mechanism through a channel, and the stalk chopper 6 is used for chopping stalks discharged from the threshing and separating mechanism; the stalk thrower 7 is mounted on the harvesting vehicle body 1, the input end of the stalk thrower 7 is communicated with the output end of the stalk chopper 6, the output end of the stalk thrower 7 is communicated with the input end of the throwing barrel 4, the stalk thrower 7 is used for throwing the stalks chopped by the stalk chopper 6 into the throwing barrel 4, the stalk chopping and throwing mechanism adopts the stalk chopper 6 and the stalk thrower 7 which are separated, so that the chopping and throwing are respectively realized, and the chopping effect and the throwing effect are ensured.

Further, as shown in fig. 1, 2, the stalk chopper 6 includes that fixed mounting establishes at the shredding shell 61, rotation on reaping the automobile body 1 the rotation section of thick bamboo 62 in the shredding shell 61 and be used for the drive rotate a 62 axial pivoted first driving piece, the input of shredding shell 61 pass through the passageway with threshing and separating mechanism's row grass mouth intercommunication, the output of shredding shell 61 with the input intercommunication of stalk thrower 7, it is fixed to be equipped with a plurality of first cutters 63 that are used for cutting the stalk on the periphery wall of a section of thick bamboo 62 to rotate a 62 axial rotation through first driving piece drive to drive the quick rotation of first cutter 63 on the periphery wall of a rotation section of thick bamboo 62, realize the high-efficient shredding of stalk. As shown in fig. 1 and 3, the stalk shredder 7 includes a throwing casing 71 fixedly disposed on the harvesting vehicle body 1, a throwing barrel 72 rotatably disposed in the throwing casing 71, and a second driving member for driving the throwing barrel 72 to axially rotate, an input end of the throwing casing 71 is communicated with an output end of the shredding casing 61, an output end of the throwing casing 71 is communicated with an input end of the throwing barrel 4, a plurality of throwing blades 73 are fixedly disposed on an outer peripheral wall of the throwing barrel 72, and the second driving member drives the throwing barrel 72 to axially rotate, so as to drive the throwing blades 73 to rotate, generate a sufficient throwing force for the shredded stalks, and thus, the stalks are fed into the stalk collecting box 5 through the throwing barrel 4.

In the embodiment of the utility model, the threshing and separating mechanism comprises a tangential flow roller 8, an axial flow roller 9, a concave plate 10 and a seed material conveying mechanism 11, the tangential flow roller 8 and the axial flow roller 9 are all installed on the harvesting vehicle body 1, the input end of the tangential flow roller 8 is communicated with the output end of the gap bridge 3, the output end of the tangential flow roller 8 is communicated with the input end of the axial flow roller 9, the output end of the axial flow roller 9 is communicated with the input end of the stalk chopping and throwing mechanism, the concave plate 10 is fixedly arranged at the bottom of the axial flow roller 9, the seed material conveying mechanism 11 is arranged at the vertical lower part of the concave plate 10 and is used for conveying the seed material passing through the concave plate 10 to a grain collecting mechanism installed on the harvesting vehicle body 1, the threshing and separating mechanism can effectively realize the separation of the stalk and the ear, the concave plate 10 is arranged at the bottom of the axial flow roller 9, the seeds and the concave plate 10 can be effectively buffered in the threshing and separating process, and the crushing is reduced.

Specifically, the seed material conveying mechanism 11 is a pushing auger device or a shaking plate, and the seed material conveying mechanism 11 is convenient for conveying the seed materials by adopting the pushing auger device or the shaking plate.

The utility model discloses an in the embodiment, the input of a section of thick bamboo 4 of shedding with the stalk throws the output of ware 7 and rotates to be connected, and the input of a section of thick bamboo 4 of shedding rotates with the output of stalk throws ware 7 to be connected, can rotate to shed a section of thick bamboo 4 or change and shed the height of a section of thick bamboo 4 of shedding. Specifically, in the prior art in the field, the rotation of the throwing barrel 4 is set as a conventional technical means in the field, for example, a labyrinth structure is adopted to realize the rotation installation of the throwing barrel 4 as disclosed in the prior patent with the patent number of 201510462033.2 and the patent name of 'a rotary throwing type silage harvester with a labyrinth structure'; also, as disclosed in the prior patent publication 202121127337.0 entitled "a multifunctional throwing barrel 72 for green fodder harvester", a structure for adjusting the throwing height of the throwing barrel 4 is disclosed. The rotational setting of the sprinkling barrel 4 in the present application can already achieve the technical object of the present application by adopting a corresponding structure in the prior art.

The working principle is as follows: corn is fed into a gap bridge 3 (cluster and straw are fed simultaneously) after passing through a header 2, enters a whole machine threshing and separating system through the gap bridge 3, and in the threshing and separating system, under the action of a tangential flow roller 8, an axial flow roller 9 and a concave plate 10, corn grains fall into a shaking plate at the lower part or a pushing and transporting auger through the concave plate 10, enter a cleaning and grain collecting mechanism at the rear part, and are sent into a granary. Under the action of the tangential flow roller 8 and the axial flow roller 9, the corn straws are primarily crushed and fully kneaded, then enter the stalk chopper 6 from a straw discharge port of the axial flow roller 9, and are thrown into the stalk thrower 7 after being fully chopped in the stalk chopper 6. In the stalk thrower 7, the material is thrown into the throwing barrel 4 after further acceleration, discharged through the throwing barrel 4 into the rear stalk collecting box 5. When the transport vehicle follows the vehicle to harvest silage or yellow silage, the upper part of the stalk throwing cylinder 4 can rotate, and the throwing angle and height can be adjusted.

Example two

The present embodiment is different from the first embodiment in that: as shown in fig. 4, in the present embodiment, the stalk chopping and throwing mechanism comprises a chopping and throwing housing 12 fixedly arranged on the harvesting vehicle body 1, a rotating shaft 13 rotatably arranged on the chopping and throwing housing 12, and a third driving member for driving the rotating shaft 13 to rotate axially, wherein the input end of the chopping and throwing housing 12 is communicated with the grass discharge port of the threshing and separating mechanism through a channel, and the output end of the chopping and throwing housing 12 is communicated with the input end of the throwing barrel 4; the fixed mount 14 that is equipped with the interval setting in pivot 13, in this embodiment, the support body of mount 14 for being equipped with the fretwork, 14 covers of mount are established in pivot 13, and is adjacent evenly be equipped with a plurality of second cutters 15 between the mount 14, second cutter 15 with the periphery wall fixed connection of mount 14, it is specific, the both ends of second cutter 15 are respectively through the bolt fastening on the periphery wall of pivot 13, just second cutter 15 for the pivot slope sets up, the inboard fixed throwing that is equipped with the slope setting of second cutter 15 towards pivot 13 send board 16, throw send board 16 to pass through the bolt fastening on the second cutter 15, perhaps both ends are fixed respectively two adjacent on the mount 14. The chopping and the throwing are integrated, and the chopping and the throwing of the materials are simultaneously carried out, so that the installation space is saved, and the cost is reduced.

Specifically, as shown in fig. 5, the number of the fixing frames 14 is two, two fixing frames 14 are respectively disposed at two ends of the rotating shaft 13, and the plurality of second cutters 15 are disposed on the outer peripheral walls of the two fixing frames 14 at intervals. The two fixing frames 14 are adopted to realize the installation of the second cutter 15 and the throwing plate 16, and the structure is simple.

EXAMPLE III

The present embodiment is different from the second embodiment in that: as shown in fig. 6, in this embodiment, the number of the fixing frames 14 is three, three fixing frames 14 are arranged at intervals along the length direction of the rotating shaft 13, the second cutters 15 are uniformly and fixedly arranged between two adjacent fixing frames 14, so as to form two groups of second cutters 15, the two groups of second cutters 15 are arranged in a staggered manner, the three fixing frames 14 arranged at intervals are adopted, the number of the second cutters 15 and the throwing plate 16 is increased, and the staggered second cutters 15 can have higher cutting efficiency.

The beneficial effect of this application:

1. corn stalks can be harvested simultaneously under the condition of harvesting corn grains, and the corn stalks are popular with animal farms after being kneaded by a roller, so that the income of growers and manipulators is greatly improved;

2. the silage can be harvested only by replacing the corresponding concave plate 10, harvested silage materials are finer, an animal farm is more popular, and the failure rate of the whole silage harvester is lower than that of a pure silage harvester;

3. the device is provided with the stalk collecting box 5, can adapt to the harvest of silage and yellow corn field with small field, and has wide application range;

4. the stalks can be collected by following the vehicle when thrown, and can be temporarily stored in the stalk collecting box 5 when the vehicle is idle or the land is small and cannot follow the vehicle, so that the stalks can be uniformly discharged;

5. the harvesting of wheat can be realized only by replacing the header 2 and the concave plate 10 and disassembling the throwing cylinder 4;

6. compared with a silage harvester, a stalk and spike harvester and the like in the current market, the weight, the cost and the selling price of the whole harvester are greatly reduced. The reliability is far higher than that of the type of the machine;

7. the whole corn is harvested, and the seeds and the roller concave plate 10 can be effectively buffered in the threshing and separating process, so that the crushing is reduced;

originally, the machine that can only harvest wheat or corn kernel has become the comprehensive harvester that can harvest wheat, maize, silage, yellow corn, and user's harvest cycle lengthens greatly, and simultaneously, the grower income also improves greatly.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A multi-crop harvester, characterized by comprising a harvesting wagon body (1);

the header (2) is arranged at the front end of the harvesting vehicle body (1), and the header (2) is used for harvesting the whole crop;

the threshing and separating mechanism is mounted on the harvesting vehicle body (1) and is used for threshing and separating crops harvested by the header (2);

the gap bridge (3) is mounted at the front part of the harvesting vehicle body (1), the gap bridge (3) is arranged between the header (2) and the threshing and separating mechanism, and the gap bridge (3) is used for conveying crops harvested by the header (2) to the threshing and separating mechanism;

the stalk chopping and throwing mechanism is mounted on the harvesting vehicle body (1), the input end of the stalk chopping and throwing mechanism is communicated with the output end of the threshing and separating mechanism, and the output end of the stalk chopping and throwing mechanism is communicated with the input end of the throwing cylinder (4) and used for chopping and throwing stalks into the throwing cylinder (4);

the stalk collecting box (5) is installed on the harvesting vehicle body (1), and the output end of the throwing barrel (4) faces the inner cavity of the stalk collecting box (5) and is used for receiving stalk fragments thrown out of the throwing barrel (4).

2. The multi-crop harvester of claim 1, wherein the threshing and separating mechanism comprises a tangential flow drum (8), an axial flow drum (9), a concave plate (10) and a seed conveying mechanism (11), the tangential flow roller (8) and the axial flow roller (9) are both arranged on the harvesting vehicle body (1), the input end of the tangential flow roller (8) is communicated with the output end of the gap bridge (3), the output end of the tangential flow roller (8) is communicated with the input end of the axial flow roller (9), the output end of the axial flow roller (9) is communicated with the input end of the stalk chopping and throwing mechanism, the concave plate (10) is fixedly arranged at the bottom of the axial flow roller (9), and the seed material conveying mechanism (11) is arranged vertically below the concave plate (10) and used for conveying the seed materials passing through the concave plate (10) to a grain collecting mechanism arranged on the harvesting vehicle body (1).

3. A multi-crop harvester according to claim 2, wherein the seed conveying mechanism (11) is a augering device or a shaker plate.

4. A multi-crop harvester according to any one of claims 1 to 3, wherein the stalk shredder and throwing mechanism comprises a stalk shredder (6) and a stalk thrower (7), the stalk shredder (6) being mounted on the harvester carriage (1), an input end of the stalk shredder (6) being in communication with a straw discharge outlet of the threshing and separating mechanism via a passageway, the stalk shredder (6) being adapted to shred stalks discharged from the threshing and separating mechanism; the stalk thrower (7) is mounted on the harvesting vehicle body (1), the input end of the stalk thrower (7) is communicated with the output end of the stalk chopper (6), the output end of the stalk thrower (7) is communicated with the input end of the throwing barrel (4), and the stalk thrower (7) is used for throwing stalks which are chopped by the stalk chopper (6) into the throwing barrel (4).

5. A multi-crop harvester according to claim 4, characterized in that the input end of the throwing drum (4) is rotatably connected to the output end of the stalk thrower (7).

6. The multi-crop harvester of claim 4, wherein the stalk chopper (6) comprises a chopping housing (61) fixedly mounted on the harvesting vehicle body (1), a rotating drum (62) rotatably arranged in the chopping housing (61), and a first driving member for driving the rotating drum (62) to rotate axially, wherein an input end of the chopping housing (61) is communicated with a grass discharge port of the threshing and separating mechanism through a passage, an output end of the chopping housing (61) is communicated with an input end of the stalk thrower (7), and a plurality of first cutters (63) for cutting stalks are fixedly arranged on the peripheral wall of the rotating drum (62).

7. The harvester according to claim 6, characterized in that the stalk thrower (7) comprises a throwing housing (71) fixedly arranged on the harvesting wagon body (1), a throwing barrel (72) rotatably arranged in the throwing housing (71), and a second driving member for driving the throwing barrel (72) to rotate axially, wherein an input end of the throwing housing (71) is communicated with an output end of the chopping housing (61), an output end of the throwing housing (71) is communicated with an input end of the throwing barrel (4), and a plurality of throwing blades (73) are fixedly arranged on the peripheral wall of the throwing barrel (72).

8. The multi-crop harvester according to any one of claims 1 to 3, wherein the stalk chopping and throwing mechanism comprises a chopping and throwing housing (12) fixedly arranged on the harvesting vehicle body (1), a rotating shaft (13) rotatably arranged on the chopping and throwing housing (12), and a third driving member for driving the rotating shaft (13) to rotate axially, wherein the input end of the chopping and throwing housing (12) is communicated with the grass discharge port of the threshing and separating mechanism through a passage, and the output end of the chopping and throwing housing (12) is communicated with the input end of the throwing barrel (4); the fixed mount (14) that are equipped with the interval and set up on pivot (13), it is adjacent evenly be equipped with a plurality of second cutters (15) between mount (14), second cutter (15) with the periphery wall fixed connection of mount (14), second cutter (15) are towards the inboard fixed throwing that is equipped with the slope and sets up of pivot (13) and send board (16).

9. A harvester according to claim 8, wherein the number of the fixed frames (14) is two, two fixed frames (14) are respectively arranged at two ends of the rotating shaft (13), and the second cutters (15) are arranged on the outer peripheral walls of the two fixed frames (14) at intervals.

10. A harvester according to claim 8, wherein the number of the fixed frames (14) is three, three fixed frames (14) are arranged at intervals along the length direction of the rotating shaft (13), and the second cutters (15) are uniformly and fixedly arranged between every two adjacent fixed frames (14), so that two groups of the second cutters (15) are formed, and the two groups of the second cutters (15) are arranged in a staggered manner.

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