Harvester

Abstract

The utility model belongs to and discloses a harvester which is characterized in that a chopping housing of the harvester is fixedly connected to a rack, and the chopping housing is provided with a chopping discharge port; the chopping assembly is arranged in the chopping housing and used for chopping materials. In the height direction of the harvester, a grass discharging opening of the threshing assembly is located between the top and the bottom of a chopping area of the chopping assembly. The grass skiing and chopping adjusting part is connected to the chopping housing and has a first working state and a second working state, an inlet is formed between the grass skiing and chopping adjusting part and the chopping housing in the first working state, the inlet is communicated with the grass discharging opening and the chopping discharging opening, and the grass skiing and chopping adjusting part is communicated with the chopping discharging opening in the second working state. A grass discharging channel communicated with the grass discharging opening is formed between the chopper and the screen box. The harvester is simple in structure, low in production cost and high in efficiency of chopping straws and directly discharging the straws without chopping, the risk that the chopped straws block the chopping discharge outlet in the process of discharging the chopped straws from the chopping discharge outlet can be effectively reduced, and the risk of blocking in the process of directly discharging the straws without chopping can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to harvesters. Background Technology

[0002] Currently, there are two main ways for harvesters to process straw: one is to crush the straw and return it to the field using the harvester's built-in shredder; the other is to bale, collect, and recycle the straw after it has been discharged by the harvester for use in power generation, livestock farming, etc.

[0003] Regarding the harvester's self-equipped shredder device, one existing harvester technology has a rotatable grass-sliding shredding adjustment component on the housing of the shredder device. The grass-sliding shredding adjustment component can be rotated to a first working position to separate the grass discharge port of the shredding component and the threshing assembly, forming a complete straw discharge port, through which the straw can be directly discharged. The grass-sliding shredding adjustment component can also be rotated to a second working position to connect the grass discharge port of the threshing assembly with the shredding discharge port located at the output end of the shredding component on the housing, so that the straw can be shredded by the shredding component and discharged through the shredding discharge port. However, the chopping components and chopping discharge port of this type of chopper device are set close to the ground, resulting in a long path between the straw discharge port and the chopping components. An adjustment plate needs to be set at the straw discharge port to guide the straw out of the straw discharge port, and a raised design needs to be made on the shell to guide the straw output to the chopping components for chopping. This makes the structure of the chopper device complex and the production cost high. Secondly, the chopping components are set close to the ground, which makes it easy for straw to clog the whole straw discharge port and / or the chopping discharge port. Utility Model Content

[0004] The purpose of this invention is to provide a harvester to solve the aforementioned problems existing in the harvesters of the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A harvester includes a frame, and a threshing assembly, a screen box, and a chopper disposed on the frame; the chopper is located on one axial side of the threshing assembly, and the screen box is located below the threshing assembly along the height direction of the harvester; the chopper includes:

[0007] A shredding cover is fixedly connected to the frame; the shredding cover is provided with a shredding discharge port;

[0008] A shredding assembly is disposed within the shredding housing and is used to shred materials; along the height direction of the harvester, the discharge port of the threshing assembly is located between the top and bottom of the shredding area of ​​the shredding assembly;

[0009] A grass shredding adjustment component is connected to the shredding cover. The grass shredding adjustment component has a first working state and a second working state. When the grass shredding adjustment component is in the first working state, an inlet is formed between the grass shredding adjustment component and the shredding cover, and the inlet connects the grass discharge port and the shredding discharge port. When the grass shredding adjustment component is in the second working state, a grass discharge channel is formed between the shredder and the screen box, which communicates with the grass discharge port.

[0010] As a preferred embodiment of the harvester described above, the screen box is located directly below the threshing assembly along the height direction of the harvester;

[0011] And / or, along the height direction of the harvester, the grass discharge channel is located directly below the grass discharge port;

[0012] And / or, along the height direction of the harvester, the shredding outlet is located between the top of the inlet and the bottom of the screen box.

[0013] As a preferred embodiment of the above-mentioned harvester, the first end of the grass shredding adjustment component is rotatably connected to the shredding cover. When the grass shredding adjustment component is in the first working state, the inlet is formed between the second end of the grass shredding adjustment component and the shredding cover. When the grass shredding adjustment component is in the second working state, the second end of the grass shredding adjustment component is away from the shredding assembly relative to the first end of the grass shredding adjustment component along the height direction of the harvester.

[0014] As a preferred embodiment of the aforementioned harvester, when the grass shredding adjustment component is in the first working state, the grass shredding adjustment component is plate-shaped; and / or,

[0015] When the grass shredding adjustment component is in the first working state, the grass shredding adjustment component is tilted, and the second end of the grass shredding adjustment component is located above the first end of the grass shredding adjustment component along the height direction of the harvester.

[0016] As a preferred embodiment of the above-mentioned harvester, when the grass shredding adjustment component is in the first working state, the second end of the grass shredding adjustment component is located between the two ends of the grass discharge port along the axial direction of the threshing assembly;

[0017] The frame is connected to a guide plate at the grass discharge port. The grass shredding adjustment component and the guide plate are spliced ​​together to form a combined guide plate. The end of the guide plate away from the grass shredding adjustment component is located on the side of the grass discharge port away from the shredding component along the axial direction of the threshing assembly. Alternatively, the end of the guide plate away from the grass shredding adjustment component is flush with the end of the grass discharge port away from the shredding component along the axial direction of the threshing assembly.

[0018] As a preferred embodiment of the harvester, along the height direction of the harvester, the connection between the grass shredding adjustment component and the shredding cover is located at the bottommost part of the shredding assembly.

[0019] As a preferred embodiment of the above-mentioned harvester, the grass shredding adjustment component includes at least two sub-adjustment parts connected in sequence, and one of the sub-adjustment parts located at one end is also connected to the shredding cover; when the grass shredding adjustment component is in the first working state, at least two of the sub-adjustment parts are spliced ​​together and form the inlet between them and the shredding cover.

[0020] As a preferred embodiment of the above-mentioned harvester, at least two of the sub-adjustment parts are rotatably connected in sequence; or, at least two of the sub-adjustment parts are slidably connected in sequence; or, at least two of the sub-adjustment parts are detachably connected in sequence.

[0021] As a preferred embodiment of the above-mentioned harvester, a guide surface is formed on the chopping cover at the chopping output end of the chopping assembly, and the guide surface can guide the material to be discharged from the chopping discharge port.

[0022] As a preferred embodiment of the above-mentioned harvester, a tail hood is connected to the chopping discharge port of the chopping cover.

[0023] The beneficial effects of this utility model are:

[0024] This utility model provides a harvester, which includes a frame, a threshing assembly, a screen box, and a chopper mounted on the frame. Taking straw as an example, when the straw needs to be chopped and discharged, the straw chopping adjustment component is adjusted to maintain a first working state, so that the inlet connects the straw discharge port and the chopping discharge port. The straw discharged from the straw discharge port enters the chopping hood through the inlet, the chopping component chops the straw, and the chopped straw is discharged through the chopping discharge port, thus achieving the goal of discharging the chopped straw through the chopping discharge port. When the straw needs to be discharged directly without chopping, the straw chopping adjustment component is adjusted to maintain a second working state, and a straw discharge channel is formed between the chopper and the screen box, which is connected to the straw discharge port. The straw discharged from the straw discharge port is directly discharged to the outside through the straw discharge channel. It can be understood that during this process, the chopping component remains stationary and does not work.

[0025] Along the height direction of the harvester, by setting the discharge port between the top and bottom of the chopping area of ​​the chopping component, the height difference between the chopping component and the discharge port is effectively reduced compared to existing technologies. Furthermore, by setting the grass-skimming chopping adjustment component in its first working state to directly connect the discharge port and the chopping cover, the positions of both the grass-skimming chopping adjustment component and the chopping component are moved upwards compared to existing technologies. This shortens the path of straw discharged from the discharge port to the chopping component, effectively improving the efficiency of feeding and chopping straw. Secondly, by setting the grass-skimming chopping adjustment component in its second working state, a discharge channel is formed between the chopper and the screen box, directly connecting to the discharge port. This allows the straw discharged from the discharge port to be directly discharged through the discharge channel, shortening the discharge path and effectively improving the efficiency of discharging straw without chopping.

[0026] Secondly, the above-mentioned configuration also effectively increases the height difference between the chopping component and the ground, thereby effectively reducing the risk of the chopped straw clogging the chopping discharge port during the discharge process.

[0027] Secondly, the above-mentioned setup also effectively increases the height difference between the output end of the straw discharge channel and the ground, thereby effectively reducing the risk of blockage during the direct discharge of straw without chopping.

[0028] Secondly, the above-mentioned design also reduces the volume of the shredding casing, thus saving production costs.

[0029] Therefore, the harvester has a simple structure and low production cost; secondly, it can effectively improve the efficiency of feeding and chopping straw, and can effectively reduce the risk of clogging the chopping discharge port during the process of discharging chopped straw; thirdly, it can effectively improve the efficiency of discharging straw directly without chopping, and can effectively reduce the risk of clogging during the process of discharging straw directly without chopping. Attached Figure Description

[0030] Figure 1 This is a specific embodiment of the present invention, showing the relative positions of the threshing assembly, screen box, guide plate, and chopper when the grass shredding adjustment component is in its first working state. Figure 1 ;

[0031] Figure 2 This is a specific embodiment of the present invention, showing the relative positions of the threshing assembly, screen box, guide plate, and chopper when the grass shredding adjustment component is in its second working state. Figure 2 ;

[0032] Figure 3 This is a schematic diagram of the structure of the grass shredder when the grass shredder adjustment component is in the first working state, according to a specific embodiment of this utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the grass shredder when the grass shredder adjustment component is in the second working state, according to a specific embodiment of this utility model.

[0034] Figure 5 This is a partial structural schematic diagram of a harvester provided in a specific embodiment of this utility model.

[0035] In the picture:

[0036] 1. Rack;

[0037] 2. Threshing assembly; 21. Straw discharge port;

[0038] 3. Screen box;

[0039] 4. Chopper; 41. Chopping cover; 411. Chopping discharge port; 412. Guide surface; 42. Chopping assembly; 421. Moving blade; 422. Fixed blade; 43. Grass shredding adjustment component; 431. Sub-adjustment section; 44. Inlet; 45. Tail exhaust cover;

[0040] 5. Grass removal channel;

[0041] 6. Guide plate. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0043] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0046] Example 1

[0047] like Figure 1-5 As shown, this utility model provides a harvester, which includes a frame 1, a threshing assembly 2, a screen box 3 and a chopper 4 disposed on the frame 1; the chopper 4 is located on one axial side of the threshing assembly 2, and the screen box 3 is located below the threshing assembly 2 along the height direction of the harvester. The chopper 4 includes a chopping cover 41, a chopping assembly 42, and a grass-chopping adjustment component 43. The chopping cover 41 is fixedly connected to the frame 1 and has a chopping discharge port 411. The chopping assembly 42 is disposed inside the chopping cover 41 and is used to chop materials. Along the height direction of the harvester, the grass discharge port 21 of the threshing assembly 2 is located between the top and bottom of the chopping area of ​​the chopping assembly 42. The grass-chopping adjustment component 43 is connected to the chopping cover 41. The grass-chopping adjustment component 43 has a first working state and a second working state. When the grass-chopping adjustment component 43 is in the first working state, an inlet 44 is formed between the grass-chopping adjustment component 43 and the chopping cover 41, and the inlet 44 connects the grass discharge port 21 and the chopping discharge port 411. When the grass-chopping adjustment component 43 is in the second working state, a grass discharge channel 5 is formed between the chopper 4 and the screen box 3, which is connected to the grass discharge port 21.

[0048] Taking straw as an example, when the straw needs to be chopped and discharged, the straw chopping adjustment component 43 is adjusted to maintain the first working state, so that the inlet 44 connects the straw discharge port 21 and the chopped discharge port 411. The straw discharged from the straw discharge port 21 enters the chopping cover 41 through the inlet 44, the chopping component 42 chops the straw, and the chopped straw is discharged through the chopped discharge port 411, so as to achieve the goal of chopped straw being discharged through the chopped discharge port 411. When the straw needs to be discharged directly without being chopped, the straw chopping adjustment component 43 is adjusted to maintain the second working state, and a straw discharge channel 5 is formed between the chopper 4 and the screen box 3, which is connected to the straw discharge port 21. The straw discharged from the straw discharge port 21 is directly discharged to the outside through the straw discharge channel 5. It can be understood that during this process, the chopping component 42 remains stationary and does not work.

[0049] Along the height direction of the harvester, by setting the straw discharge port 21 between the top and bottom of the chopping area of ​​the chopping component 42, the height difference between the chopping component 42 and the straw discharge port 21 is effectively reduced compared to the prior art. By setting the straw shredding adjustment component 43 to form an inlet 44 directly connecting the straw discharge port 21 and the chopping discharge port 411 between the chopping cover 41 in the first working state, the positions of both the straw shredding adjustment component 43 and the chopping component 42 are moved upward compared to the prior art, and the path of the straw discharged from the straw discharge port 21 to the chopping component 42 is shortened, which can effectively improve the efficiency of feeding and shredding the straw. Secondly, by setting the straw shredding adjustment component 43 to the second working state, a straw discharge channel 5 is formed between the chopper 4 and the screen box 3, which is directly connected to the straw discharge port 21, so that the straw discharged from the straw discharge port 21 can be directly discharged through the straw discharge channel 5, the discharge path is shortened, and the efficiency of direct discharge of straw without shredding is effectively improved.

[0050] Secondly, the above-mentioned configuration also effectively increases the height difference between the chopping component 42 and the ground, thereby effectively reducing the risk of the chopped straw clogging the chopping discharge port 411 during the discharge process.

[0051] Secondly, the above-mentioned settings also effectively increase the height difference between the output end of the straw discharge channel 5 and the ground, thereby effectively reducing the risk of blockage during the process of direct discharge of straw without chopping.

[0052] Secondly, the above-mentioned configuration also reduces the volume of the shredding casing 41, which can save production costs.

[0053] Therefore, the harvester has a simple structure and low production cost; secondly, it can effectively improve the efficiency of feeding and chopping straw, and can effectively reduce the risk of clogging the chopping discharge port 411 during the process of discharging the chopped straw; secondly, it can effectively improve the efficiency of discharging straw directly without chopping, and can effectively reduce the risk of clogging during the process of discharging straw directly without chopping.

[0054] Among them, such as Figure 1-4 As shown, the chopping assembly 42 includes a movable blade 421 and a fixed blade 422, which cooperate to chop materials. Specifically, the fixed blade 422 is fixedly connected inside the chopping housing 41, and the movable blade 421 is movably or rotatably connected inside the chopping housing 41, so that the movable blade 421 and the fixed blade 422 cooperate to chop materials. Further, along the height direction of the harvester, the fixed blade 422 is located below the movable blade 421, which can improve the chopping quality and efficiency of the chopping assembly 42. In this embodiment, the movable blade 421 is rotatably connected inside the chopping housing 41, and along the height direction of the harvester, the fixed blade 422 is located below the movable blade 421. The specific structure of the movable blade 421 and the fixed blade 422 is prior art and will not be described in detail here.

[0055] Preferably, the screen box 3 is located directly below the threshing assembly 2 along the height direction of the harvester. This results in a small space occupancy and high integration of the overall structure formed by the screen box 3 and the threshing assembly 2 along the width direction of the harvester. As an alternative, the screen box 3 can also be located below the threshing assembly 2, with a portion of the screen box 3 along the width direction of the harvester located on one side of the threshing assembly 2.

[0056] Preferably, along the height direction of the harvester, the shredding discharge port 411 is located between the top of the inlet 44 and the bottom of the screen box 3. This effectively increases the height difference between the overall chopper 4 and the ground, further reducing the risk of clogging the shredding discharge port 411 during discharge and effectively improving the harvester's passability when crossing ridges or going uphill. As an alternative, the shredding discharge port 411 may also be located at least partially below the screen box 3 along the height direction of the harvester.

[0057] Preferably, such as Figure 2As shown, along the height direction of the harvester, the straw discharge channel 5 is located directly below the straw discharge port 21. This arrangement ensures both the efficiency and quality of straw discharge through the straw discharge channel 5, and minimizes the distance between the straw discharge port 21 and the moving blade 421 of the chopping component 42 along the axial direction of the threshing assembly 2, thereby further improving the efficiency of the chopping component 42 in feeding and chopping materials. Secondly, this arrangement also effectively reduces the volume and space occupancy of the overall structure assembled from the threshing assembly 2, the screen box 3, and the chopper 4. As an alternative, along the height direction of the harvester, the straw discharge channel 5 is partially located directly below the straw discharge port 21.

[0058] Optionally, such as Figure 5 As shown, a guide plate 6 is connected to the frame 1 at the straw discharge port 21, which guides the material out of the discharge port 21. For straw shredding and discharge, this further improves the efficiency of feeding and shredding the straw; for straw that is not shredded and discharged directly, this further improves the efficiency of the straw being discharged directly to the outside through the straw discharge channel 5. Specifically, the guide plate 6 is connected to the frame 1 by screws, welding, integral molding, or bolts and nuts. In this embodiment, the guide plate 6 is exemplaryly set on the frame 1.

[0059] Optionally, such as Figure 1-4 As shown, a guide surface 412 is formed on the chopping cover 41 at the chopping output end of the chopping assembly 42. The guide surface 412 can guide the material to be discharged from the chopping discharge port 411. This can further reduce the risk of the chopped straw clogging the chopping discharge port 411 during the discharge process and further improve the efficiency of discharging straw from the chopping discharge port 411. Specifically, the guide surface 412 is an inclined surface; in the height direction of the harvester, the end of the guide surface 412 near the chopping output end of the chopping assembly 42 is located above the end of the guide surface 412 near the chopping discharge port 411. This makes the guide surface 412 inclined downward, which can guide the material to be discharged from the chopping discharge port 411.

[0060] Optionally, such as Figure 1-4 As shown, a tail discharge hood 45 is connected to the chopping discharge port 411 of the chopping cover 41. The tail discharge hood 45 can prevent material from splashing out of the chopping discharge port 411 and can evenly distribute the chopped material. Specifically, the tail discharge hood 45 is connected to the frame 1 by screws, welding, or bolts and nuts. The specific structure of the tail discharge hood 45 is prior art and will not be described in detail here.

[0061] Among them, such as Figure 1-4 As shown, the first end of the grass shredding adjustment member 43 is connected to the shredding cover 41; when the grass shredding adjustment member 43 is in the first working state, an inlet 44 is formed between the second end of the grass shredding adjustment member 43 and the shredding cover 41.

[0062] Preferably, such as Figure 1 As shown, when the grass shredding adjustment component 43 is in the first working state, the second end of the grass shredding adjustment component 43 is located between the two ends of the grass discharge port 21 along the axial direction of the threshing assembly 2; the grass shredding adjustment component 43 and the guide plate 6 are spliced ​​to form a combined guide plate. The end of the guide plate 6 away from the grass shredding adjustment component 43 is located on the side of the grass discharge port 21 away from the shredding component 42 along the axial direction of the threshing assembly 2, or, the end of the guide plate 6 away from the grass shredding adjustment component 43 is flush with the end of the grass discharge port 21 away from the shredding component 42 along the axial direction of the threshing assembly 2. All of these features result in a large flow cross-sectional area at the inlet 44, allowing for better material flow. Secondly, it can fully receive the material discharged from the discharge port 21, improving the working performance of the shredder 4. Furthermore, it can reduce the total length of the first and second ends of the grass shredding adjustment component 43 when it is in the first working state, making it easier to switch the grass shredding adjustment component 43 between the first and second working states, and effectively reducing the manufacturing cost of the grass shredding adjustment component 43.

[0063] As an alternative, when the grass shredding adjustment component 43 is in its first working state, its second end is located on the side of the discharge port 21 away from the shredding component 42 along the axial direction of the threshing assembly 2. This arrangement results in a larger inlet area 44, allowing for better material flow, and the entire structure formed by the shredding cover 41 and the shredding component 42 can completely receive the material discharged from the discharge port 21, thus improving the working performance of the chopper 4. Under this premise, it can be further configured that when the grass shredding adjustment component 43 is in its first working state, its second end overlaps the guide plate 6, or its second end is located below the guide plate 6 along the height direction of the harvester.

[0064] As an alternative, when the grass shredding adjustment component 43 is in its first working state, its second end is flush with the end of the grass discharge port 21 that is away from the shredding component 42 along the axial direction of the threshing assembly 2. Under this premise, it can be further configured that when the grass shredding adjustment component 43 is in its first working state, its second end overlaps the guide plate 6, or its second end is located below the guide plate 6 along the height direction of the harvester.

[0065] Preferably, such as Figure 1 and Figure 3As shown, when the grass skiing shredding adjustment component 43 is in its first working state, it is plate-shaped. This makes the process of material moving smoothly along the grass skiing shredding adjustment component 43 to the shredding assembly 42 for shredding, thereby further improving the efficiency of material feeding and shredding. As an alternative, when the grass skiing shredding adjustment component 43 is in its first working state, it can also be set to be arc-shaped, with the arc opening facing the shredding assembly 42, which can also make the material move smoothly along the grass skiing shredding adjustment component 43 to the shredding assembly 42. It is understood that when the grass skiing shredding adjustment component 43 is in its first working state, it can also be set to other shapes, as long as it makes the material move smoothly along the grass skiing shredding adjustment component 43 to the shredding assembly 42.

[0066] More preferably, such as Figure 1 and Figure 3 As shown, when the grass shredding adjustment component 43 is in its first working state, it is tilted, with its second end positioned above the first end along the height direction of the harvester. This further improves the smoothness of material movement along the grass shredding adjustment component 43 to the shredding assembly 42 for shredding.

[0067] In this embodiment, as Figure 1 and Figure 3 As shown, when the grass shredding adjustment component 43 is in its first working state, it is plate-shaped. The grass shredding adjustment component 43 is inclined, and its second end is positioned above its first end along the height direction of the harvester. The second end of the grass shredding adjustment component 43 is located between the two ends of the discharge port 21 along the axial direction of the threshing assembly 2. The grass shredding adjustment component 43 and the guide plate 6 are joined to form a combined guide plate. The end of the guide plate 6 furthest from the grass shredding adjustment component 43 is flush with the end of the discharge port 21 furthest from the shredding component 42 along the axial direction of the threshing assembly 2. This ensures optimal smoothness of material movement along the grass shredding adjustment component 43 to the shredding component 42 for shredding.

[0068] The specific structures of the screen box 3 and the threshing assembly 2 are existing technologies, so they will not be described in detail here.

[0069] Example 2

[0070] This embodiment includes the content of Embodiment 1, and further describes Embodiment 1:

[0071] Among them, such as Figure 1-4As shown, the first end of the grass shredding adjustment component 43 is rotatably connected to the shredding cover 41. When the grass shredding adjustment component 43 is in the first working state, an inlet 44 is formed between the second end of the grass shredding adjustment component 43 and the shredding cover 41. When the grass shredding adjustment component 43 is in the second working state, the second end of the grass shredding adjustment component 43 is further away from the first end of the grass shredding adjustment component 43 along the height direction of the harvester. This allows the grass shredding adjustment component 43 to be switched between its position in the first working state and its position in the second working state simply by rotating it, making operation simple. Specifically, when the grass shredding adjustment component 43 is in the first working state, its setting position is locked by a locking component. Furthermore, the second end of the grass shredding adjustment component 43 is locked to the frame 1 by a locking component. Furthermore, the locking component is a screw, pin, hook, or a matching bolt and nut, etc.

[0072] Preferably, such as Figure 1-4 As shown, along the height direction of the harvester, the rotatable connection between the grass-sliding chopping adjustment component 43 and the chopping cover 41 is located at the very bottom of the chopping assembly 42. This results in a larger cross-sectional area of ​​the grass discharge channel 5 along the discharge direction when the grass-sliding chopping adjustment component 43 is in its second working state, thereby further improving the efficiency of direct discharge of straw without chopping. As an alternative, taking the rotatable connection of the moving blade 421 to the chopping cover 41 as an example, the rotatable connection between the grass-sliding chopping adjustment component 43 and the chopping cover 41 can also be set at any position between the central axis of the moving blade 421 and the very bottom of the chopping assembly 42 along the height direction of the harvester.

[0073] Optionally, such as Figure 1-4 As shown, the grass skiing shredding adjustment component 43 includes at least two sub-adjustment parts 431 connected in sequence, and one of the sub-adjustment parts 431 located at one end is also rotatably connected to the shredding cover 41; when the grass skiing shredding adjustment component 43 is in the first working state, at least two sub-adjustment parts 431 are spliced ​​together and form an inlet 44 between them and the shredding cover 41.

[0074] Further optional, such as Figure 1-4 As shown, at least two sub-adjustment parts 431 are rotatably connected in sequence; or, at least two sub-adjustment parts 431 are slidably connected in sequence; or, at least two sub-adjustment parts 431 are detachably connected in sequence. Specifically, the rotatable connection of at least two sub-adjustment parts 431 allows the grass shredding adjustment to have a folded state and an unfolded state. The slidable connection of at least two sub-adjustment parts 431 allows the grass shredding adjustment to have a contracted state and an extended state.

[0075] Regarding the sequential rotational connection of at least two sub-adjustment parts 431 of the grass skiing shredding adjustment part 43: For example... Figure 1-4As shown, while switching the grass shredding adjustment member 43 to the first working state, at least two sub-adjustment parts 431 of the grass shredding adjustment member 43 are adjusted to the unfolded state; while switching the grass shredding adjustment member 43 to the second working state, at least two sub-adjustment parts 431 of the grass shredding adjustment member 43 can be selectively kept in the unfolded state, or adjusted to the folded state.

[0076] Regarding the sequential sliding connection of at least two sub-adjustment portions 431 of the grass shredding adjustment member 43: while switching the grass shredding adjustment member 43 to the first working state, the at least two sub-adjustment portions 431 of the grass shredding adjustment member 43 are adjusted to the extended state; while switching the grass shredding adjustment member 43 to the second working state, the at least two sub-adjustment portions 431 of the grass shredding adjustment member 43 can be selectively kept in the extended state, or adjusted to the retracted state.

[0077] Regarding the sequentially detachable connection of at least two sub-adjustment parts 431 of the grass shredding adjustment component 43: when the grass shredding adjustment component 43 is switched to the first working state, the at least two sub-adjustment parts 431 of the grass shredding adjustment component 43 remain sequentially detachable; when the grass shredding adjustment component 43 is switched to the second working state, a portion of the at least two sub-adjustment parts 431 of the grass shredding adjustment component 43 can be selectively detached.

[0078] Therefore, when the grass shredding adjustment component 43 switches between the first working state and the second working state, the state of at least two sub-adjustment parts 431 of the grass shredding adjustment component 43 is adjusted simultaneously, so as to avoid interference with other structural components and further improve the reliability of the grass shredding adjustment component 43 switching between the first working state and the second working state.

[0079] In this embodiment, as Figure 1-4 As shown, the exemplary setting adjustment grass shredding adjustment member 43 includes two rotatably connected sub-adjustment parts 431, one of which is also rotatably connected to the shredding cover 41.

[0080] Example 3

[0081] The difference between this embodiment and embodiment two is that the first end of the grass skiing shredding adjustment component 43 is detachably connected to the shredding cover 41.

[0082] Furthermore, when the grass shredding adjustment component 43 is switched to the first working state, the grass shredding adjustment component 43 is connected to the shredding cover 41.

[0083] Furthermore, when switching the grass shredding adjustment component 43 to the second working state, the grass shredding adjustment component 43 is directly removed from the shredding cover 41; or, when switching the grass shredding adjustment component 43 to the second working state, at least two sub-adjustment parts 431 are adjusted according to the connection method of at least two sub-adjustment parts 431 of the shredding adjustment component 43, so that a grass discharge channel 5 communicating with the grass discharge port 21 is formed between the shredder 4 and the screen box 3.

[0084] Furthermore, regarding the sequential rotational connection of at least two sub-adjustment parts 431 of the grass shredding adjustment member 43, when switching the grass shredding adjustment member 43 to the second working state, the at least two sub-adjustment parts 431 of the grass shredding adjustment member 43 are adjusted to remain in a folded state.

[0085] With regard to the sequential sliding connection of at least two sub-adjustment portions 431 of the grass shredding adjustment member 43, when the grass shredding adjustment member 43 is switched to the second working state, the at least two sub-adjustment portions 431 of the grass shredding adjustment member 43 are adjusted to remain in the contracted state.

[0086] With regard to the sequentially detachable connection of at least two sub-adjustment parts 431 of the grass shredding adjustment member 43, when switching the grass shredding adjustment member 43 to the second working state, a portion of the at least two sub-adjustment parts 431 of the grass shredding adjustment member 43 is detached.

[0087] Example 4

[0088] The difference between this embodiment and embodiment two is that the first end of the grass skiing shredding adjustment component 43 is welded or integrally formed to the shredding cover 41.

[0089] Furthermore, regarding the sequential rotational connection of at least two sub-adjustment parts 431 of the grass shredding adjustment member 43, when switching the grass shredding adjustment member 43 to the first working state, the at least two sub-adjustment parts 431 of the grass shredding adjustment member 43 are adjusted to the unfolded state; when switching the grass shredding adjustment member 43 to the second working state, the at least two sub-adjustment parts 431 of the grass shredding adjustment member 43 are adjusted to the folded state.

[0090] With regard to the sequential sliding connection of at least two sub-adjustment portions 431 of the grass shredding adjustment member 43, when the grass shredding adjustment member 43 is in the first working state, the at least two sub-adjustment portions 431 of the grass shredding adjustment member 43 are adjusted to the extended state; when the grass shredding adjustment member 43 is in the second working state, the at least two sub-adjustment portions 431 of the grass shredding adjustment member 43 are adjusted to the retracted state.

[0091] Regarding the sequentially detachable connection of at least two sub-adjustment parts 431 of the grass shredding adjustment component 43, when switching the grass shredding adjustment component 43 to the first working state, the at least two sub-adjustment parts 431 of the grass shredding adjustment component 43 are kept sequentially detachable; when switching the grass shredding adjustment component 43 to the second working state, a portion of the at least two sub-adjustment parts 431 of the grass shredding adjustment component 43 is detached.

[0092] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A harvester, comprising a frame (1), and a threshing assembly (2), a screen box (3), and a chopper (4) disposed on the frame (1); the chopper (4) is located on one axial side of the threshing assembly (2), and the screen box (3) is located below the threshing assembly (2) along the height direction of the harvester, characterized in that, The shredder (4) includes: A shredding cover (41) is fixedly connected to the frame (1); the shredding cover (41) is provided with a shredding discharge port (411); The chopping assembly (42) is disposed inside the chopping cover (41) and is used to chop materials; along the height direction of the harvester, the discharge port (21) of the threshing assembly (2) is located between the top and bottom of the chopping area of ​​the chopping assembly (42); A grass shredding adjustment component (43) is connected to the shredding cover (41). The grass shredding adjustment component (43) has a first working state and a second working state. When the grass shredding adjustment component (43) is in the first working state, an inlet (44) is formed between the grass shredding adjustment component (43) and the shredding cover (41). The inlet (44) connects the grass discharge port (21) and the shredding discharge port (411). When the grass shredding adjustment component (43) is in the second working state, a grass discharge channel (5) is formed between the shredder (4) and the sieve box (3) and communicates with the grass discharge port (21).

2. The harvester according to claim 1, characterized in that: Along the height direction of the harvester, the screen box (3) is located directly below the threshing assembly (2); And / or, along the height direction of the harvester, the grass discharge channel (5) is located directly below the grass discharge port (21); And / or, along the height direction of the harvester, the shredding outlet (411) is located between the top of the inlet (44) and the bottom of the screen box (3).

3. The harvester according to claim 1, characterized in that, The first end of the grass shredding adjustment component (43) is rotatably connected to the shredding cover (41). When the grass shredding adjustment component (43) is in the first working state, the inlet (44) is formed between the second end of the grass shredding adjustment component (43) and the shredding cover (41). When the grass shredding adjustment component (43) is in the second working state, the second end of the grass shredding adjustment component (43) is away from the shredding assembly (42) relative to the first end of the grass shredding adjustment component (43) along the height direction of the harvester.

4. The harvester according to any one of claims 1-3, characterized in that, When the grass shredding adjustment component (43) is in the first working state, the grass shredding adjustment component (43) is plate-shaped; and / or, When the grass shredding adjustment component (43) is in the first working state, the grass shredding adjustment component (43) is inclined, and the second end of the grass shredding adjustment component (43) is located above the first end of the grass shredding adjustment component (43) along the height direction of the harvester.

5. The harvester of any one of claims 1-3, wherein, When the grass shredding adjustment component (43) is in the first working state, the second end of the grass shredding adjustment component (43) is located between the two ends of the grass discharge port (21) along the axial direction of the threshing assembly (2); The frame (1) is connected to a guide plate (6) at the grass discharge port (21). The grass shredding adjustment component (43) and the guide plate (6) are spliced ​​together to form a combined guide plate. One end of the guide plate (6) away from the grass shredding adjustment component (43) is located on the side of the grass discharge port (21) away from the shredding component (42) along the axial direction of the threshing assembly (2). Alternatively, one end of the guide plate (6) away from the grass shredding adjustment component (43) is flush with one end of the grass discharge port (21) away from the shredding component (42) along the axial direction of the threshing assembly (2).

6. The harvester according to any one of claims 1-3, characterized in that, Along the height direction of the harvester, the connection between the grass shredding adjustment component (43) and the shredding cover (41) is located at the bottom of the shredding assembly (42).

7. The harvester of any one of claims 1-3, wherein, The grass shredding adjustment component (43) includes at least two sub-adjustment parts (431) connected in sequence, and one of the sub-adjustment parts (431) located at one end is also connected to the shredding cover (41); when the grass shredding adjustment component (43) is in the first working state, at least two of the sub-adjustment parts (431) are spliced ​​together and form the inlet (44) between them and the shredding cover (41).

8. The harvester of claim 7, wherein, At least two of the sub-adjustment parts (431) are rotatably connected in sequence; or, at least two of the sub-adjustment parts (431) are slidably connected in sequence; or, at least two of the sub-adjustment parts (431) are detachably connected in sequence.

9. The harvester according to any one of claims 1-3, characterized in that, A guide surface (412) is formed on the shredding cover (41) at the shredding output end of the shredding assembly (42), and the guide surface (412) can guide the material to be discharged from the shredding discharge port (411).

10. The harvester of any one of claims 1-3, wherein, The shredding cover (41) is connected to a tail hood (45) at the shredding discharge port (411).

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