Harvester grain recovery device and harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a grain recovery device of a harvester and the harvester, the grain recovery device of the harvester comprises a grain conveying auger used for unloading grains and a cleaning air duct used for cleaning sundries in grains, the grain conveying auger and an air duct cavity are respectively arranged on a rack, the cleaning air duct is formed in the air duct cavity, and the grain conveying auger and the cleaning air duct are arranged on the rack. An air outlet is formed in the tail end of the cleaning air duct, a sealing plate capable of turning over is correspondingly arranged at the air outlet, the sealing plate is hinged to the rack, and the sealing plate can seal the air outlet. Normal harvesting requirements can be met, grains can be effectively prevented from overflowing in the grain unloading process, harvesting efficiency is improved, and grain safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, specifically, relates to a kind of harvesting machine grain recovery device and harvester. BACKGROUND

[0002] With the continuous improvement of agricultural mechanization level in China, corn harvester is more and more widely used in agricultural production. Especially in hilly areas and soft ground conditions after rain, tracked corn harvester is widely used due to its good adaptability and high work efficiency. Such harvester usually has compact structure design to meet the operation demand under complex terrain. However, in actual use process, although the structure design of harvester can basically meet the work demand in normal harvesting stage, there are still some problems in unloading process.

[0003] In the prior art, in order to meet the volume requirement of grain tank and the requirement of cleaning air duct, tracked corn harvester usually needs to make some compromises in design. For example, although the existing corn harvester can collect enough corn kernels in normal harvesting process, it often appears that kernels overflow from the air duct opening (or called air outlet) of the reserved cleaning air duct in unloading process, resulting in kernels falling to the ground. This situation not only affects the harvesting efficiency, but also causes food waste, which is contrary to the goal of ensuring food safety.

[0004] In order to solve this problem, the existing research and practice mainly focus on optimizing the overall structure design and work flow of harvester, so as to improve the kernel loss problem in unloading process without affecting normal harvesting. However, the current technical scheme cannot completely solve this problem, especially in hilly areas and soft soil conditions, this problem is more prominent. Therefore, it is of great significance to develop a design scheme that can meet the normal harvesting demand and effectively prevent kernel overflow in unloading process, to improve harvesting efficiency and ensure food safety. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a kind of harvesting machine grain recovery device, it can meet normal harvesting demand, and effectively prevent kernel overflow in unloading process, improve harvesting efficiency and ensure food safety.

[0006] Another purpose of the utility model is to provide a kind of harvester, it can meet normal harvesting demand, and effectively prevent kernel overflow in unloading process, improve harvesting efficiency and ensure food safety.

[0007] The technical scheme of the utility model is realized as follows:

[0008] The grain recovery device of a harvester comprises a grain conveying auger for unloading and a wind channel cavity for cleaning the impurities in the grain, the grain conveying auger and the wind channel cavity are respectively arranged on a frame, a cleaning wind channel is formed in the wind channel cavity, the end of the cleaning wind channel is an air outlet, a reversible sealing plate is arranged at the air outlet, the sealing plate is hinged to the frame, and the sealing plate can block the air outlet.

[0009] Further, the output port of the grain conveying auger is a grain unloading port, a reversible discharging plate is arranged at the grain unloading port, the discharging plate is hinged to the grain conveying auger or the frame, and the discharging plate can block the grain unloading port.

[0010] It also comprises a first linkage mechanism, one end of the first linkage mechanism is connected to the sealing plate, the other end is connected to the discharging plate, the sealing plate and the discharging plate can move synchronously through the first linkage mechanism, when the sealing plate is in a closed state, the discharging plate is in an open state, and when the sealing plate is in an open state, the discharging plate is in a closed state.

[0011] Further, the discharging plate is hinged to the grain conveying auger, the discharging plate is provided with a blocking plate on each side, and the two blocking plates are respectively located on the opposite sides of the grain conveying auger.

[0012] The grain conveying auger is located below the cleaning wind channel, the grain unloading port and the air outlet are oriented in the same direction, the outer sides of the blocking plates on both sides are respectively provided with the first linkage mechanism, one end of the first linkage mechanism is hinged to the blocking plate, the other end is hinged to the sealing plate, and the flipping directions of the sealing plate and the discharging plate are consistent.

[0013] Further, the first linkage mechanism comprises a first rod body, a second rod body and a limiting plate.

[0014] One end of the first rod body is hinged to the sealing plate through a hinge seat, the other end is rotationally connected to one end of the second rod body through a first pin shaft assembly, and the other end of the second rod body is rotationally connected to the discharging plate through a second pin shaft assembly.

[0015] The limiting plate is fixedly arranged on the frame, an arc-shaped groove is formed in the limiting plate, and a pin shaft in the first pin shaft assembly penetrates the arc-shaped groove and can move in the arc-shaped groove.

[0016] When the pin shaft in the first pin shaft assembly moves to the uppermost end of the arc-shaped groove, the sealing plate is in a closed state and the discharging plate is in an open state, and when the pin shaft in the first pin shaft assembly moves to the lowermost end of the arc-shaped groove, the sealing plate is in an open state and the discharging plate is in a closed state.

[0017] Further, the outer side of the material blocking plate and the outer side of the grain conveying auger are provided with matched buckle assemblies, which can be buckled and fixed with the grain conveying auger when the material blocking plate is in the closed state.

[0018] Further, a driving mechanism is further included, which is arranged on the frame, and the output end of the driving mechanism is connected with the sealing plate, the material blocking plate or the first linkage mechanism.

[0019] Further, a second linkage mechanism is further included, which comprises at least one linkage, one end of the linkage is connected with the frame, and the other end is connected with the sealing plate, and the sealing plate is connected with the linkage mechanism through a hinge, and the sealing plate can be turned over and cover the air outlet during the grain unloading process.

[0020] Further, a driving device is further included, one end of the driving device is arranged on the frame, and the other end is connected with the second linkage mechanism, and the driving device is used for controlling the action of the second linkage mechanism, so as to drive the sealing plate to turn over.

[0021] Further, the driving device adopts a motor, an electric motor or a hydraulic cylinder, which is connected with the second linkage mechanism and is used for driving the second linkage mechanism to act.

[0022] A harvester comprises the grain recovery device of the harvester.

[0023] Compared with the prior art, the utility model has the beneficial effects that:

[0024] In the application, the sealing plate corresponding to the air outlet of the cleaning air duct is arranged to be able to turn over, the sealing plate is hinged with the frame, and the sealing plate can block the air outlet; during the grain unloading, the sealing plate is turned over to be in the closed state, the sealing plate blocks the air outlet or the air duct opening for protection, so that the grains are prevented from leaking out during the grain unloading; after the grain unloading is completed and the grain unloading opening is closed, the sealing plate is lowered synchronously to be in the opened state, and at this time, the air outlet is in the open state, that is, the cleaning air duct is smooth during the normal harvesting process. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as a limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0026] Figure 1The structure schematic view of another perspective of the utility model is shown in Figure 3.

[0027] Figure 2 The structure schematic view of another perspective of the utility model is shown in Figure 3. Figure 1

[0028] Figure 3 The structure schematic view of another perspective of the utility model is shown in Figure 3.

[0029] Figure 4 The structure schematic view of another perspective of the utility model is shown in Figure 3.

[0030] In the drawing:

[0031] 1-grain conveying auger; 101-grain discharge port; 2-air duct cavity; 201-cleaning air duct; 202-air outlet; 3-seal plate; 4-discharge plate; 401-material blocking plate;

[0032] 5-first connecting rod mechanism; 501-first rod body; 502-second rod body; 503-limiting plate; 504-arc-shaped groove; 505-first pin shaft assembly; 506-second pin shaft assembly;

[0033] 6-buckle assembly; 7-rack. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0036] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] ​In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, or is the orientation or position relation of the utility model product when using commonly, just is for the convenience of describing the utility model and simplifying the description, and cannot indicate or imply that the indicated device or element must have a particular orientation, construct and operate, therefore cannot be understood as the limitation of the utility model. In addition, the term "first", "second", "third" and so on are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical", "overhanging" and so on do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0039] In the description of the utility model, it also needs to explain that, unless otherwise expressly provided and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0041] Example 1

[0042] A kind of harvester grain recovery device, including grain delivery auger 1 for unloading and air duct cavity 2 for removing impurities in grain, the grain delivery auger 1 and the air duct cavity 2 are arranged on rack 7 respectively, the air duct cavity 2 is formed with cleaning air duct 201, the end of the cleaning air duct 201 is air outlet 202 (or air duct mouth), the air outlet 202 is correspondingly provided with the seal plate 3 capable of overturning, the seal plate 3 is hinged with the rack 7, and the air outlet 202 is blocked by seal plate 3 by manually overturning the seal plate 3;Therefore, when unloading, overturn the seal plate 3 to make it in closed state, the air outlet 202 or air duct mouth is blocked by seal plate 3 to prevent grain from leaking out during unloading.

[0043] There are at least the following two schemes for the design of the seal plate 3 at the air outlet 202 end.

[0044] The first kind: the sealing plate 3 can be arranged at the lower part of the air outlet 202 end of the air duct cavity 2, that is, the sealing plate 3 and the lower part of the air outlet 202 end are hinged by a hinge; in the natural state, the sealing plate 3 is flipped to the lower part of the air outlet 202 under the action of its own gravity and the hinge, the sealing plate 3 cannot block the air outlet 202, and the air outlet 202 is in an open state, at this time, the sealing plate 3 is in a closed state; when the sealing plate 3 is flipped upward to block the air outlet 202, the sealing plate 3 is in a closed state.

[0045] The second kind: the sealing plate 3 can be arranged at the upper part of the air outlet 202 end of the air duct cavity 2, that is, the sealing plate 3 and the upper part of the air outlet 202 end are hinged by a hinge; in the natural state, the sealing plate 3 is hung at the top of the air duct cavity 2, the sealing plate 3 cannot block the air outlet 202, and the air outlet 202 is in an open state, at this time, the sealing plate 3 is in a closed state; when the sealing plate 3 is flipped downward to block the air outlet 202, the sealing plate 3 is in a closed state.

[0046] Further, the output port of the grain conveying auger 1 is a grain discharge port 101, and a flip-down plate 4 capable of being flipped down is arranged correspondingly at the grain discharge port 101, the flip-down plate 4 is hinged with the grain conveying auger 1 or the rack 7, and preferably hinged with the grain conveying auger 1. The flip-down plate 4 can block the grain discharge port 101; there are at least two schemes for the design of the sealing plate 3 at the air outlet 202 end:

[0047] The first kind: the flip-down plate 4 can be arranged at the lower part of the grain discharge port 101, that is, the sealing plate 3 and the lower part of the grain discharge port 101 are hinged by a hinge; in the natural state, the flip-down plate 4 is flipped to the lower part of the grain discharge port 101 under the action of its own gravity and the hinge, the flip-down plate cannot block the grain discharge port 101, and the grain discharge port 101 is in an open state, at this time, the flip-down plate 4 is in a closed state; when the flip-down plate 4 is flipped upward to block the grain discharge port 101, the flip-down plate 4 is in a closed state.

[0048] The second kind: the flip-down plate 4 can be arranged at the upper part of the grain discharge port 101, that is, the sealing plate 3 and the upper part of the grain discharge port 101 are hinged by a hinge; in the natural state, the flip-down plate 4 is hung at the top of the grain conveying auger 1, the flip-down plate 4 cannot block the grain discharge port 101, and the grain discharge port 101 is in an open state, at this time, the flip-down plate 4 is in a closed state; when the flip-down plate 4 is flipped downward to block the grain discharge port 101, the flip-down plate 4 is in a closed state.

[0049] The grain conveying auger 1 is located below the cleaning air duct 201, and the grain outlet 101 and the air outlet 202 are oriented in the same direction. To facilitate operation, a rope or connecting rod can be arranged between the sealing plate 3 and the lower discharge plate 4 to establish synchronization between them. When the sealing plate 3 is in a closed state, the lower discharge plate 4 is in an open state; when the sealing plate 3 is in an open state, the lower discharge plate 4 is in a closed state. As for how the sealing plate 3 and the lower discharge plate 4 are designed to achieve this purpose, the specific solutions are as follows:

[0050] The sealing plate 3 is arranged at the lower part of the air outlet 202 end of the air duct cavity 2, and the sealing plate 3 and the lower part of the air outlet 202 end are hingedly connected by a hinge (i.e., the sealing plate 3 adopts the first scheme thereof). The lower discharge plate 4 is arranged at the upper part of the grain outlet 101, and the lower discharge plate 4 and the upper part of the grain outlet 101 are hingedly connected by a hinge (i.e., the lower discharge plate 4 adopts the second scheme thereof). When the sealing plate 3 is in an open state and the lower discharge plate 4 is in a closed state, a rope or connecting rod is arranged between the sealing plate 3 and the lower discharge plate 4. At this time, the lower discharge plate 4 is flipped downward to a closed state. Due to the restraint of the rope or connecting rod therebetween, the sealing plate 3 is flipped downward to a closed state. Then, the sealing plate 3 is flipped upward to a closed state. Due to the restraint of the rope or connecting rod therebetween, the lower discharge plate 4 is flipped upward to return to an open state. Further, a driving mechanism is arranged on the rack 7 and above the sealing plate 3 to electrically control the opening and closing states of the sealing plate 3 and the lower discharge plate 4. Specifically, the driving mechanism includes an electric drive and a traction rope. The electric drive can adopt a telescopic cylinder, a hydraulic cylinder, an electric push rod, a linear motor, or a motor capable of forward and reverse rotation. One end of the electric drive is fixed to the rack 7, and the other end is connected to the sealing plate 3 through the traction rope. When the electric drive adopts a motor capable of forward and reverse rotation, the traction rope needs to be bound to the motor output shaft, so that when the motor rotates forward, the traction rope can be wound on the motor output shaft to be shortened, and vice versa. When the motor reverses, the traction rope is loosened to return to its original state. The motor capable of forward and reverse rotation indirectly functions to shorten and lengthen the traction rope. Therefore, when the driving mechanism is in a shortened state, the electric drive pulls the sealing plate 3 through traction force, so that the sealing plate 3 is in an open state and the lower discharge plate 4 is in a closed state. When the driving mechanism is in an extended state, the lower discharge plate 4 flips downward under its own gravity and is in an open state, while the sealing plate 3 flips downward and is in a closed state.

[0051] During grain unloading, the driving mechanism controls the sealing plate 3 to be in a closed state, which blocks the air outlet 202 of the cleaning air duct 201 to prevent grain from leaking during unloading. After unloading is completed, the sealing plate 3 is flipped down to an open state, which realizes smooth cleaning of the cleaning air duct 201 during normal harvesting.

[0052] Example 2

[0053] Referring toFigures 1-4 The grain recovery device of the harvester is different from the technical scheme of embodiment 1 in that a first linkage mechanism 5 is arranged between the sealing plate 3 and the discharging plate 4, and the first linkage mechanism 5 is used to replace the rope originally arranged therebetween. In addition, the sealing plate 3 is designed in the first scheme, that is, the sealing plate 3 is arranged at the lower part of the air outlet 202 end of the air duct cavity 2, that is, the sealing plate 3 and the lower part of the air outlet 202 end are hingedly connected. Under the natural state, the sealing plate 3 is flipped to the lower part of the air outlet 202 under the action of its own gravity and the hinge, the sealing plate 3 cannot block the air outlet 202, and the air outlet 202 is in an open state, and at this time, the sealing plate 3 is in a closed state. When the sealing plate 3 is flipped upward to block the air outlet 202, the sealing plate 3 is in a closed state. At the same time, the discharging plate 4 is arranged at the lower part of the grain discharge port 101.

[0054] Specifically as follows:

[0055] One end of the first linkage mechanism 5 is connected with the sealing plate 3, the other end is connected with the discharging plate 4, the sealing plate 3 and the discharging plate 4 can move synchronously through the first linkage mechanism 5; through the unique design of the first linkage mechanism 5, when the sealing plate 3 is in a closed state, the discharging plate 4 is in an open state; when the sealing plate 3 is in an open state, the discharging plate 4 is in a closed state.

[0056] Specifically (as shown in Figure 1 and Figure 2 The first linkage mechanism 5 includes a first rod body 501, a second rod body 502 and a limiting plate 503;

[0057] One end of the first rod body 501 is hingedly connected with the sealing plate 3 through a hinge seat, the other end is rotationally connected with one end of the second rod body 502 through a first pin shaft assembly 505, the other end of the second rod body 502 is rotationally connected with the discharging plate 4 through a second pin shaft assembly 506;

[0058] The limiting plate 503 is fixedly arranged on the rack 7, an arc-shaped groove 504 is formed in the limiting plate 503, and the pin shaft in the first pin shaft assembly 505 passes through the arc-shaped groove 504 and can move in the arc-shaped groove 504;

[0059] When the pin shaft in the first pin shaft assembly 505 moves to the uppermost end of the arc-shaped groove 504, the sealing plate 3 is in a closed state, and the discharging plate 4 is in an open state; when the pin shaft in the first pin shaft assembly 505 moves to the lowermost end of the arc-shaped groove 504, the sealing plate 3 is in an open state, and the discharging plate 4 is in a closed state.

[0060] Further, the outer side of the at least one baffle plate 401 is provided with a U-shaped bracket, which is rotationally connected with the second rod body 502 through a first pin shaft assembly 505.

[0061] Further, a driving mechanism is arranged on the frame 7, and an output end of the driving mechanism is connected with the sealing plate 3, the discharging plate 4 or the first linkage mechanism 5. Since the sealing plate 3, the discharging plate 4 or the first linkage mechanism 5 are synchronously operated, any one of them driven by the driving mechanism can drive the whole to operate. The driving mechanism can be any one of a telescopic cylinder, a hydraulic cylinder, an electric push rod or a linear motor.

[0062] Further, the outer side of the baffle plate 401 and the outer side of the grain conveying auger 1 are provided with matched buckle assemblies 6, which can be clamped and fixed with the grain conveying auger 1 when the discharging plate 4 is in the closed state, further ensuring the structure to be fixed firmly.

[0063] In the embodiment, the driving mechanism drives the whole operation of the sealing plate 3, the discharging plate 4 and the first linkage mechanism 5. When the pin shaft in the first pin shaft assembly 505 moves to the uppermost end of the arc-shaped groove 504, the sealing plate 3 is in the closed state and the discharging plate 4 is in the opened state. When the pin shaft in the first pin shaft assembly 505 moves to the lowermost end of the arc-shaped groove 504, the sealing plate 3 is in the opened state and the discharging plate 4 is in the closed state. The first linkage mechanism 5 connects the sealing plate 3 and the discharging plate 4, so that the discharging plate 4 is in the opened state and the sealing plate 3 is in the closed state to block the air outlet 202 of the cleaning air duct 201 during grain unloading, preventing the grains from leaking out during the grain unloading process. After the grain unloading is completed, the discharging plate 4 is turned to the closed state to close the unloading port 101, and at the same time, the sealing plate 3 is turned down to the opened state, so that the cleaning air duct 201 is unblocked during normal harvesting. This can meet the normal harvesting demand, effectively prevent the grains from overflowing during the grain unloading process, improve the harvesting efficiency and ensure the food safety.

[0064] Embodiment 3

[0065] A grain recovery device of a harvester, comprising a grain conveying auger 1 for unloading and an air duct cavity 2 for cleaning impurities in the grains, the grain conveying auger 1 and the air duct cavity 2 are arranged on a frame 7 respectively, the air duct cavity 2 forms a cleaning air duct 201, the end of the cleaning air duct 201 is an air outlet 202, the air outlet 202 is correspondingly provided with a sealing plate 3 capable of being turned over, the sealing plate 3 is hinged with the frame 7, and the sealing plate 3 can block the air outlet 202.

[0066] The second linkage mechanism comprises at least one linkage rod, one end of the linkage rod is connected to the rack 7, the other end is connected to the sealing plate 3, and the sealing plate 3 is connected to the second linkage mechanism through a hinge, and the sealing plate 3 can be turned over to cover the air outlet 202 during grain unloading.

[0067] The driving device is arranged at one end of the rack 7 and connected to the second linkage mechanism at the other end, and is used for controlling the action of the second linkage mechanism to drive the sealing plate 3 to turn over.

[0068] The driving device is arranged at one end of the rack 7 and connected to the second linkage mechanism at the other end, and is used for controlling the action of the second linkage mechanism to drive the sealing plate 3 to turn over.

[0069] Embodiment 4

[0070] A harvester comprises the grain recovery device of the harvester.

[0071] The technical scheme of the utility model has the advantages of:

[0072] In the present application, the sealing plate 3 corresponding to the air outlet 202 of the cleaning air duct 201 is arranged to be able to turn over, the sealing plate 3 is hinged to the rack 7, and the sealing plate 3 can block the air outlet 202; during grain unloading, the sealing plate 3 is turned over to be in a closed state, the sealing plate 3 blocks the air outlet 202 or the air duct opening to prevent grain from leaking out during grain unloading; after grain unloading is completed and the grain unloading opening 101 is closed, the sealing plate 3 is lowered to be in an open state, and at this time, the air outlet 202 is in an open state, that is, the cleaning air duct 201 is unobstructed during normal harvesting.

[0073] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

[0074] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A grain harvesting machine grain recovery device, comprising a grain conveying auger (1) for unloading grain and an air channel cavity (2) for cleaning impurities in the grain, the grain conveying auger (1) and the air channel cavity (2) are respectively arranged on a frame (7), an air cleaning channel (201) is formed in the air channel cavity (2), and the air cleaning channel (201) has an air outlet (202) at the end, characterized in that, A reversible sealing plate (3) is arranged at the air outlet (202), the sealing plate (3) is hinged to the rack (7), and the sealing plate (3) can block the air outlet (202).

2. The harvester grain recovery device of claim 1, wherein, The output port of the grain conveying auger (1) is a grain discharge port (101), a reversible discharging plate (4) is arranged at the grain discharge port (101), the discharging plate (4) is hinged to the grain conveying auger (1) or the rack (7), and the discharging plate (4) can block the grain discharge port (101). A first linkage mechanism (5) is further arranged, one end of the first linkage mechanism (5) is connected to the sealing plate (3), the other end is connected to the discharging plate (4), the sealing plate (3) and the discharging plate (4) can move synchronously through the first linkage mechanism (5), when the sealing plate (3) is in a closed state, the discharging plate (4) is in an open state, and when the sealing plate (3) is in an open state, the discharging plate (4) is in a closed state.

3. The harvester grain recovery device of claim 2, wherein, The discharging plate (4) is hinged to the grain conveying auger (1), and a material blocking plate (401) is arranged on each side of the discharging plate (4) and located on the opposite sides of the grain conveying auger (1). The grain conveying auger (1) is located below the cleaning air duct (201), the grain discharge port (101) and the air outlet (202) are oriented in the same direction, and the outer sides of the material blocking plates (401) on the two sides are respectively provided with the first linkage mechanism (5), one end of the first linkage mechanism (5) is hinged to the material blocking plate (401), the other end is hinged to the sealing plate (3), and the sealing plate (3) and the discharging plate (4) are in the same direction of rotation.

4. The harvester grain recovery device of claim 3, wherein, The first linkage mechanism (5) comprises a first rod body (501), a second rod body (502) and a limiting plate (503). One end of the first rod body (501) is hinged to the sealing plate (3) through a hinge seat, the other end is rotationally connected to one end of the second rod body (502) through a first pin shaft assembly (505), the other end of the second rod body (502) is rotationally connected to the discharging plate (4) through a second pin shaft assembly (506). The limiting plate (503) is fixedly arranged on the rack (7), an arc-shaped groove (504) is formed in the limiting plate (503), and a pin shaft in the first pin shaft assembly (505) is arranged in the arc-shaped groove (504) and can move in the arc-shaped groove (504). When the pin shaft in the first pin shaft assembly (505) moves to the uppermost end of the arc-shaped groove (504), the sealing plate (3) is in a closed state, and the discharging plate (4) is in an open state, and when the pin shaft in the first pin shaft assembly (505) moves to the lowermost end of the arc-shaped groove (504), the sealing plate (3) is in an open state, and the discharging plate (4) is in a closed state.

5. The harvester grain recovery device of claim 4, wherein, The outer side of the baffle plate (401) and the outer side of the grain conveying auger (1) are provided with matched buckle assemblies (6), which can be buckled and fixed with the grain conveying auger (1) through the buckle assemblies (6) when the lower baffle plate (4) is in the closed state.

6. The harvester grain recovery apparatus of claim 4, wherein, Further comprising a driving mechanism, which is arranged on the frame (7), and the output end of the driving mechanism is connected with the sealing plate (3), the lower baffle plate (4) or the first linkage mechanism (5).

7. The harvester grain recovery apparatus of claim 1, wherein, Further comprising a second linkage mechanism, which comprises at least one linkage, one end of the linkage is connected with the frame (7), and the other end is connected with the sealing plate (3), and the sealing plate (3) is connected with the linkage mechanism through a hinge, and the sealing plate (3) can be turned over to cover the air outlet (202) during the unloading process.

8. The harvester grain recovery device of claim 7, wherein, Further comprising a driving device, one end of the driving device is arranged on the frame (7), and the other end is connected with the second linkage mechanism, and the driving device is used for controlling the action of the second linkage mechanism, so as to drive the sealing plate (3) to turn over.

9. The harvester grain recovery device of claim 8, wherein, The driving device adopts a motor, an electric motor or a hydraulic cylinder, which is connected with the second linkage mechanism and is used for driving the action of the second linkage mechanism.

10. A harvester characterized by The grain recovery device of the harvester comprises the grain recovery device according to any one of claims 1-9.

Images