Auger mechanism, bract cleaning device and corn harvester

Abstract

The utility model relates to the technical field of agricultural machinery, and provides an auger mechanism, a bract cleaning device and a corn harvester. A plurality of cleaning teeth of the auger mechanism are arranged, and the plurality of cleaning teeth are wound on the outer wall of the first rotating shaft; the multiple first blocking pieces are arranged, and the multiple cleaning teeth are connected through the first blocking pieces in the axis direction of the first rotating shaft. When the first rotating shaft rotates around the axis of the first rotating shaft, the multiple cleaning teeth can be driven to rotate together, in the rotating process of the cleaning teeth, materials can be turned over and stirred, the cleaning teeth help bracts to be rapidly separated, the staying time of the bracts in an auger channel is effectively shortened, and the bracts are separated from the auger channel in the axial direction of the first rotating shaft. The cleaning teeth are connected through the first blocking pieces, gaps between the cleaning teeth can be blocked, long straw is prevented from being wound around the first rotating shaft, winding and remaining of the straw in an auger channel are effectively reduced, the cleaning efficiency of bract grains is improved, and the blocking risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a kind of stir dragon mechanism, bract cleaning device and corn harvester. BACKGROUND

[0002] With the development of agricultural mechanization, the development of corn harvester needs innovation and upgrading to adapt to market demand. As one of the key components of corn harvester, the working performance of peeling machine directly affects the operation efficiency, bract peeling rate, grain loss rate and other harvesting performance indicators of the whole machine. However, the current mainstream corn machine manufacturers basically use stir dragon cleaning. Stir dragon mainly realizes the pushing function, and the grain cleaning function is poor. During the cleaning process, the grains are wrapped in bracts, and the stir dragon cannot fully clean the grains in the bracts. After using the active cleaning stir dragon with increased cleaning teeth design, it is found that the bract grain cleaning effect is excellent, but some bracts and long straws cannot be quickly separated in the rapid rotation of the cleaning teeth during the working process of the active cleaning stir dragon, resulting in that the bracts and long straws stay in the stir dragon channel for a long time, cannot be normally discharged, and are wound around the stir dragon shaft pipe, causing the safety hazard of blockage.

[0003] Therefore, there is an urgent need for a stir dragon mechanism, bract cleaning device and corn harvester to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of stir dragon mechanism, bract cleaning device and corn harvester, which can prevent straw from winding around the first rotating shaft when stirring materials, effectively reduce the winding and retention of straw in the stir dragon channel, improve the cleaning efficiency of bract grains and reduce the risk of blockage.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The stir dragon mechanism comprises:

[0007] a first rotating shaft;

[0008] a plurality of cleaning teeth, which are arranged on the outer wall of the first rotating shaft;

[0009] a first blocking member, which is arranged between the plurality of cleaning teeth along the axis direction of the first rotating shaft.

[0010] As a preferred technical solution of the stir dragon mechanism, the plurality of cleaning teeth are arranged in multiple groups, each group of cleaning teeth comprises a plurality of cleaning teeth arranged in sequence along the axis of the first rotating shaft, and each group of cleaning teeth is arranged at intervals along the axis of the first rotating shaft.

[0011] As a preferred technical scheme of the above stirring mechanism, all the above cleaning teeth in the same group are connected by the same above first blocking piece.

[0012] As a preferred technical scheme of the above stirring mechanism, the above first blocking piece is connected to two above cleaning teeth adjacent along the above first rotation axis in the same group.

[0013] As a preferred technical scheme of the above stirring mechanism, the above first blocking piece is arranged spaced apart from the above first rotation axis.

[0014] As a preferred technical scheme of the above stirring mechanism, the height of the above first blocking piece is less than or equal to the height of the above cleaning teeth, the first end of the above cleaning teeth is connected to the above first rotation axis, the second end of the above cleaning teeth is arranged spaced apart, and the above first blocking piece is arranged between the above second end and the above first end.

[0015] As a preferred technical scheme of the above stirring mechanism, the above stirring mechanism further comprises a second blocking piece, the above second blocking piece is fixed to the above first rotation axis, and in the circumferential direction of the above first rotation axis, the above second blocking piece is arranged between two adjacent groups of the above cleaning teeth; and the height of the above second blocking piece is less than or equal to the height of the above cleaning teeth.

[0016] As a preferred technical scheme of the above stirring mechanism, the above stirring mechanism further comprises a first stirring blade, the above first stirring blade is helically arranged on the above first rotation axis and is installed at the input end of the above first rotation axis.

[0017] As a preferred technical scheme of the above stirring mechanism, the above stirring mechanism further comprises a first throwing plate, the above first throwing plate is installed at the output end of the above first rotation axis, and in the axial direction of the above first rotation axis, the above first throwing plate and the above first stirring blade are respectively arranged at opposite sides of the above cleaning teeth.

[0018] As a preferred technical scheme of the above stirring mechanism, the above stirring mechanism further comprises a first reinforcing piece, the above first reinforcing piece connects the above first throwing plate and the above first rotation axis.

[0019] As a preferred technical scheme of the above stirring mechanism, at least part of the above first blocking piece is fixedly connected to the above first throwing plate.

[0020] As a preferred technical scheme of the above stirring mechanism, the above cleaning teeth are arranged at an angle with the axis of the above first rotation axis.

[0021] As a preferred technical scheme of the above stirring mechanism, the above first blocking piece is a baffle, a blocking net or an intercepting rod.

[0022] The application further provides a bract cleaning device, which comprises an outer frame, two sieve plates, an upper stirring mechanism and the stirring mechanism described above, wherein the stirring mechanism described above is a lower stirring mechanism, the two sieve plates are arranged on the outer frame, the upper stirring mechanism and the lower stirring mechanism are arranged above the two sieve plates respectively, and both ends of the upper stirring mechanism and the lower stirring mechanism are connected with the outer frame.

[0023] As a preferred technical scheme of the bract cleaning device, the two sieve plates are connected or arranged at intervals.

[0024] As a preferred technical scheme of the bract cleaning device, the bract cleaning device further comprises a transmission mechanism, which is connected with the lower stirring mechanism and the upper stirring mechanism and transmits external power to the lower stirring mechanism and the upper stirring mechanism.

[0025] As a preferred technical scheme of the bract cleaning device, the upper stirring mechanism comprises:

[0026] a second rotating shaft;

[0027] a second stirring vane, which is in a spiral shape, arranged around the circumferential wall of the second rotating shaft and located at the input end of the second rotating shaft;

[0028] a second throwing plate, which is arranged on the second rotating shaft, sequentially arranged with the second stirring vane in the axial direction of the second rotating shaft and located at the output end of the second rotating shaft.

[0029] As a preferred technical scheme of the bract cleaning device, the upper stirring mechanism further comprises a second reinforcing member, which is connected with the second throwing plate and the second rotating shaft.

[0030] As a preferred technical scheme of the bract cleaning device, the output end of the upper stirring mechanism is arranged adjacent to the input end of the lower stirring mechanism.

[0031] As a preferred technical scheme of the bract cleaning device, the bract cleaning device further comprises a plurality of grass guide plates, which are arranged at intervals along the axial line of the first rotating shaft, fixed to the outer frame, and located between the grass guide plates and the sieve plates.

[0032] As a preferred technical scheme of the bract cleaning device, the grass guide plates are in a spiral or circular arc plate structure.

[0033] As a preferred technical scheme of the above bract cleaning device, the spacing between the two adjacent guide plates located at the end of the first rotating shaft is greater than the spacing between the two adjacent guide plates located at the middle of the first rotating shaft.

[0034] The corn harvester also comprises the above bract cleaning device.

[0035] The first rotating shaft, the cleaning teeth and the first blocking piece are provided.

[0036] The first rotating shaft, the cleaning teeth and the first blocking piece are provided.

[0037] The cleaning tooth groups are provided in plurality, and the plurality of cleaning tooth groups comprise a plurality of cleaning teeth arranged in sequence along the axial direction of the first rotating shaft.

[0038] The second blocking piece is fixed with the first rotating shaft, and is arranged between the two adjacent cleaning tooth groups in the circumferential direction of the first rotating shaft.

[0039] The corn harvester also comprises the above bract cleaning device.

[0040] The corn harvester also comprises the above bract cleaning device.

[0041] When the first rotating shaft rotates around its own axis, the plurality of cleaning teeth can rotate together, and the cleaning teeth can stir the material in the process of rotation, the material comprising bract, kernel and straw. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the contents of the embodiments of the present application and the drawings by those skilled in the art without creative labor.

[0043] Figure 1 is a structure schematic view of the stirring mechanism provided by the embodiment of the present application Figure 1 ;

[0044] Figure 2 is a structure schematic view of the stirring mechanism provided by the embodiment of the present application Figure 2 ;

[0045] Figure 3 is a structure schematic view of the stirring mechanism provided by the embodiment of the present application Figure 3 ;

[0046] Figure 4 is a structure schematic view of the stirring mechanism provided by the embodiment of the present application Figure 4 ;

[0047] Figure 5 is a shaft side view of the stirring mechanism provided by the embodiment of the present application Figure 1 ;

[0048] Figure 6 is a shaft side view of the stirring mechanism provided by the embodiment of the present application Figure 2 ;

[0049] Figure 7 is a shaft side view of the stirring mechanism provided by the embodiment of the present application

[0050] Figure 8 is a structure schematic view of the bract cleaning device provided by the embodiment of the present application

[0051] Figure 9 is a structure schematic view of the transmission mechanism provided by the embodiment of the present application

[0052] Figure 10 is an assembly schematic view of the stirring mechanism, the upper stirring mechanism and the grass guide plate provided by the embodiment of the present application

[0053] Figure 11 is a structure schematic view of the upper stirring mechanism provided by the embodiment of the present application

[0054] Figure 12 is a structure schematic view of the sieve plate provided by the embodiment of the present application

[0055] Figure 13 is a side view of the sieve plate provided by the embodiment of the present application

[0056] Figure 14 is an arrangement schematic view of the grass guide plate provided by the embodiment of the present application

[0057] Figure 15It is the assembling schematic view of the grass guide plate and the sieve plate provided by the embodiment of the utility model.

[0058] In the figure:

[0059] 100, lower stir dragon mechanism;

[0060] 110, first rotating shaft; 120, cleaning tooth; 121, first tooth section; 122, second tooth section; 131, first barrier; 132, second barrier; 140, first bearing seat; 150, first stir dragon blade; 160, first throwing plate; 170, first reinforcing part;

[0061] 200, outer frame;

[0062] 300, sieve plate; 310, first sieve plate; 320, second sieve plate;

[0063] 400, upper stir dragon mechanism; 410, second rotating shaft; 420, second stir dragon blade; 430, second throwing plate; 440, second reinforcing part; 450, second bearing seat;

[0064] 500, grass guide plate;

[0065] 600, transmission mechanism; 610, first sprocket; 620, second sprocket; 630, transmission main shaft. DETAILED DESCRIPTION

[0066] The utility model will be further explained in detail below by combining with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, and not limit the utility model. In addition, it needs to be explained that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0067] In the description of the utility model, unless there is explicit definition and limitation, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integral; it can be mechanical connection, also can be electrical connection; it can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of 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.

[0068] 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.

[0069] 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.

[0070] like Figures 1 to 7 As shown, this utility model provides an auger mechanism, including a first rotating shaft 110, cleaning teeth 120, and first baffles 131. Multiple cleaning teeth 120 are provided and are arranged around the outer wall of the first rotating shaft 110; multiple first baffles 131 are provided, and the cleaning teeth 120 are connected to each other along the axial direction of the first rotating shaft 110 via the first baffles 131.

[0071] With this configuration, when the first rotating shaft 110 rotates around its own axis, it can drive multiple cleaning teeth 120 to rotate together. During the rotation, the cleaning teeth 120 can agitate the materials, including husks, grains, and straw. The cleaning teeth 120 help the husks to detach quickly, effectively reducing the time the husks stay in the auger channel. Along the axial direction of the first rotating shaft 110, the multiple cleaning teeth 120 are connected by the first baffle 131, which helps to block the gaps between the multiple cleaning teeth 120 and prevent long straw from getting tangled in the first rotating shaft 110. This effectively reduces the tangling and retention of straw in the auger channel, improves the cleaning efficiency of husks and grains, and reduces the risk of blockage.

[0072] Optionally, the first barrier 131 can be a baffle, a barrier net, or a barrier bar. In this embodiment, the first barrier 131 is a baffle.

[0073] Optionally, multiple sets of cleaning teeth 120 are provided. Each set of cleaning teeth 120 includes several cleaning teeth 120 arranged sequentially along the axial direction of the first rotation axis 110, and each set of cleaning teeth 120 is spaced apart around the axis of the first rotation axis 110. In this arrangement, the multiple cleaning teeth 120 are arranged in an array along the circumference and axial direction of the first rotation axis 110, which allows the auger mechanism to fully agitate the material, helping the husks to detach quickly, thereby improving the separation effect between the grains and the husks.

[0074] Furthermore, multiple cleaning teeth 120 are evenly spaced in both the axial and circumferential directions of the first rotating shaft 110. This arrangement facilitates the connection of the multiple cleaning teeth 120 in the axial direction of the first rotating shaft 110 by the first baffle 131, thereby blocking the gaps between the multiple cleaning teeth 120 in the axial direction of the first rotating shaft 110 and preventing long straw from entangled in the first rotating shaft 110.

[0075] Optional, such as Figure 1 As shown, all the cleaning teeth 120 in the same group are connected by the same first partition 131.

[0076] Optional, such as Figure 2 As shown, the first baffle 131 is connected to two adjacent cleaning teeth 120 along the first rotation axis 110 in the same group.

[0077] Furthermore, the first baffle 131, the cleaning teeth 120, and the first rotating shaft 110 are fixed in pairs. This arrangement enhances the reliability of the connection between the three components, allowing the cleaning teeth 120 and the first baffle 131 to share the force exerted by the material, thus suppressing deformation.

[0078] Optional, such as Figure 3 As shown, the first baffle 131 is spaced apart from the first rotating shaft 110. With this arrangement, the first baffle 131 is connected to the first rotating shaft 110 via the cleaning teeth 120, eliminating the need to consider the sidewall fit between the first baffle 131 and the first rotating shaft 110. This allows for a reduction in the machining precision of the first baffle 131 during processing, saving costs. It also reduces the resistance generated by the first baffle 131 when the first rotating shaft 110 rotates.

[0079] Optionally, the height of the first baffle 131 is less than or equal to the height of the cleaning tooth 120. The first end of the cleaning tooth 120 is connected to the first rotating shaft 110, and the second end of the cleaning tooth 120 is suspended in the air. The first baffle 131 is located between the second end and the first end and is spaced apart from the second end. This arrangement helps to guide the husks while preventing long stalks from getting tangled in the first rotating shaft 110.

[0080] Further, the height of the first barrier 131, i.e. the distance from the outer wall of the first rotating shaft 110 at the end of the first rotating shaft 110 away from the first rotating shaft 110, is H1; the height of the cleaning tooth 120, i.e. the distance from the outer wall of the first rotating shaft 110 at the end of the cleaning tooth 120 away from the first rotating shaft 110, is H2, and H1 < H2, so that the end of the cleaning tooth 120 can exceed the first barrier 131 for stirring the material.

[0081] Optionally, as shown in Figure 4 the stir dragon mechanism further comprises a second barrier 132, the second barrier 132 is fixed with the first rotating shaft 110, and the second barrier 132 is arranged between two adjacent groups of cleaning teeth 120 in the circumferential direction of the first rotating shaft 110; and the height of the second barrier 132 is less than or equal to the height of the cleaning tooth 120. In this way, the second barrier 132 and the cleaning tooth 120 are respectively fixed with the first rotating shaft 110, and the second barrier 132 and the cleaning tooth 120 are arranged in the circumferential direction of the first rotating shaft 110.

[0082] In other embodiments, the stir dragon mechanism only comprises the second barrier 132.

[0083] Optionally, the stir dragon mechanism further comprises a first stir dragon blade 150, the first stir dragon blade 150 is spirally arranged on the first rotating shaft 110 and is installed at the input end of the first rotating shaft 110.

[0084] Specifically, the first stir dragon blade 150 is installed on the circumferential side wall of the first rotating shaft 110, and is arranged in sequence with the cleaning tooth 120 and the first barrier 131 in the axial direction of the first rotating shaft 110, the first stir dragon blade 150 is arranged on the first rotating shaft 110 around the axis of the first rotating shaft 110, and the first stir dragon blade 150 is located upstream of the cleaning tooth 120. In this way, the first stir dragon blade 150 is beneficial to conveying the bracts mixed with grains output from the previous process into the stir dragon channel composed of the cleaning tooth 120 and the first rotating shaft 110.

[0085] Illustratively, the first stir dragon blade 150 is used to receive the bracts mixed with grains output from the previous process, and under the driving of the first rotating shaft 110, the first stir dragon blade 150 in a spiral shape can transport the grains and the bracts to the area where the cleaning tooth 120 is located for further processing.

[0086] Optionally, the stir dragon mechanism further comprises a first throwing plate 160, the first throwing plate 160 is installed at the output end of the first rotating shaft 110, and in the axial direction of the first rotating shaft 110, the first throwing plate 160 is located on the opposite side of the first stir dragon blade 150 from the cleaning tooth 120. In this way, the first throwing plate 160 is beneficial to throwing the cleaned bracts to the next stage of equipment.

[0087] For example, the first throwing plate 160 is arranged on the side wall of the first rotating shaft 110, and is sequentially arranged with the cleaning tooth 120 and the first blocking piece 131 along the axial direction of the first rotating shaft 110 and is located downstream of the cleaning tooth 120. The bracts screened by the cleaning tooth 120 move to the first throwing plate 160, and the first throwing plate 160 rotates with the first rotating shaft 110, so that the bracts can be thrown to the next process.

[0088] Optionally, the stirring mechanism further comprises a first reinforcing piece 170, and the first reinforcing piece 170 is connected between the first throwing plate 160 and the first rotating shaft 110. The first reinforcing piece 170 is beneficial to improving the connection strength between the first throwing plate 160 and the first rotating shaft 110.

[0089] For example, the first reinforcing piece 170 can be a sheet metal piece, a reinforcing rib structure or a reinforcing rod structure, so that the connection between the first throwing plate 160 and the first rotating shaft 110 is more reliable and is not easy to deform relative to the first rotating shaft 110 under the action of the material.

[0090] Optionally, the lower stirring mechanism 100 further comprises a first bearing seat 140, and the first bearing seat 140 is provided with two first bearing seats 140, which are respectively arranged on the two axial ends of the first rotating shaft 110, and the first bearing seat 140 is used for being connected with the outer frame 200. Through the first bearing seat 140, the friction generated when the lower stirring mechanism 100 rotates relative to the outer frame 200 during operation can be reduced, and the first bearing seat 140 is beneficial to forming a rotating connection between the first rotating shaft 110 and the outer frame 200.

[0091] Optionally, at least part of the first blocking piece 131 is fixedly connected with the first throwing plate 160. In this way, the first throwing plate 160 and the first blocking piece 131 can share the action force of the material and inhibit the deformation trend relative to the first rotating shaft 110.

[0092] It should be noted that, in the preferred embodiment of the utility model, the number of the first throwing plates 160 is two, and the two first throwing plates 160 are horizontally arranged on the side wall of the first rotating shaft 110.

[0093] The plurality of cleaning teeth 120 form four rows in the circumferential direction of the first rotating shaft 110, and adjacent two rows are arranged at an angle of 90 degrees. Correspondingly, the number of the first blocking pieces 131 is four, and the end portions of the two first blocking pieces 131 arranged horizontally are connected with the end portions of the two first throwing plates 160, respectively.

[0094] Optionally, the cleaning teeth 120 are set at an angle to the axis of the first rotating shaft 110. This helps to distribute the force exerted by the inclined cleaning teeth 120 on the bracts, helping the bracts to detach quickly and effectively reducing the time the bracts stay in the auger channel.

[0095] For example, optionally, based on the axial projection of the first rotating shaft 110, the connection point between the cleaning tooth 120 and the first rotating shaft 110 and the rotation center point of the first rotating shaft 110 line determine a straight line L, and the end of the cleaning tooth 120 away from the first rotating shaft 110 is set at an angle to the straight line L.

[0096] For example, such as Figure 5 As shown, the cleaning teeth 120 are cylindrical, and the axis of the cleaning teeth 120 is set at an angle to the straight line L.

[0097] For example, such as Figure 6 As shown, the cleaning tooth 120 includes a first tooth segment 121 and a second tooth segment 122. Both the first tooth segment 121 and the second tooth segment 122 are cylindrical. The second tooth segment 122 is connected to the first rotating shaft 110 through the first tooth segment 121. The axis of the first tooth segment 121 coincides with the straight line L, and the axis of the second tooth segment 122 is set at an angle to the straight line L.

[0098] Generally, the end of the cleaning tooth 120 away from the first rotating axis 110 is angled with the straight line L by α, satisfying 0° < α < 90°. Preferably, α = 12°.

[0099] This design disperses the force exerted on the husks by the inclined cleaning teeth 120, helping the husks to detach quickly under the influence of multiple forces. This effectively reduces the residence time of the husks in the auger channel, improves the efficiency of husk and grain cleaning, and reduces the risk of clogging.

[0100] In other embodiments, such as Figure 7 As shown, α = 0°, meaning that the first rotating shaft 110 is put into operation axially, and the axis of the cleaning tooth 120 coincides with the straight line L.

[0101] like Figures 8 to 15 As shown, this utility model also provides a husk cleaning device, including an outer frame 200, a sieve plate 300, an upper auger mechanism 400 and the aforementioned auger mechanism, wherein the aforementioned auger mechanism is a lower auger mechanism 100, two sieve plates 300 are provided and installed on the outer frame 200, the upper auger mechanism 400 and the lower auger mechanism 100 are respectively arranged above the two sieve plates 300, and both ends are connected to the outer frame 200.

[0102] Exemplarily, the upper stir mechanism 400 is located upstream of the lower stir mechanism 100, and the bracts mixed with the grains are discharged to the upper stir mechanism 400 in the previous process, and the grains and the bracts are preliminarily separated through the stirring of the upper stir mechanism 400, the separated grains can be collected through the sieve plate 300, and the unseparated grains enter the lower stir mechanism 100 along with the bracts for re-stirring and separation.

[0103] Exemplarily, the outer frame 200 is a machine frame.

[0104] Optionally, the two sieve plates 300 are connected or arranged at intervals.

[0105] Exemplarily, the two sieve plates 300 correspond to the upper stir mechanism 400 and the lower stir mechanism 100 one by one, and the sieve plate 300 corresponding to the lower stir mechanism 100 is referred to as the first sieve plate 310, and the sieve plate 300 corresponding to the upper stir mechanism 400 is referred to as the second sieve plate 320. In the vertical direction, the first sieve plate 310 is located directly below the lower stir mechanism 100, and in the axial projection of the first rotating shaft 110, the first sieve plate 310 is in the shape of a circular arc; in the vertical direction, the second sieve plate 320 is located directly below the upper stir mechanism 400, and in the axial projection of the second rotating shaft 410, the second sieve plate 320 is in the shape of a circular arc.

[0106] Exemplarily, as shown in Figure 13 the axial projection of the first rotating shaft 110, the two sieve plates 300 in this embodiment are connected by welding or using fasteners on one side adjacent to each other.

[0107] In other embodiments, in the axial projection of the first rotating shaft 110, the two sieve plates 300 in this embodiment are arranged at intervals and are fixed to the outer frame 200, respectively.

[0108] Optionally, the bract cleaning device further comprises a transmission mechanism 600, the transmission mechanism 600 is connected with the lower stir mechanism 100 and the upper stir mechanism 400, and transmits external power to the lower stir mechanism 100 and the upper stir mechanism 400. In this way, the lower stir mechanism 100 and the upper stir mechanism 400 are connected through the transmission mechanism 600, so that the lower stir mechanism 100 and the upper stir mechanism 400 rotate synchronously under the action of external power, and then drive the bracts mixed with the corn grains to displace along the lower stir mechanism 100 and the upper stir mechanism 400.

[0109] The transmission mechanism 600 comprises a first sprocket 610, a second sprocket 620 and a chain. The first sprocket 610 is installed on the lower auger mechanism 100, the second sprocket 620 is installed on the upper auger mechanism 400, and the first sprocket 610 and the second sprocket 620 are driven by the chain. When one of the lower auger mechanism 100 and the upper auger mechanism 400 is driven, the other can also rotate together under the drive of the transmission mechanism 600. In this way, the power for rotating the first rotating shaft 110 can be transmitted to the second rotating shaft 410, so that the second rotating shaft 410 and the first rotating shaft 110 can rotate synchronously.

[0110] Further, the transmission mechanism 600 further comprises a transmission main shaft 630 coaxially connected with one end of the first rotating shaft 110. The transmission main shaft 630 is used to connect the driver with the first rotating shaft 110. The transmission main shaft 630 is connected with the first rotating shaft 110 through a shaft coupling, or the transmission main shaft 630 is integrally formed with the first rotating shaft 110. Further, since the lower auger mechanism 100 has a more obvious stirring effect on the material than the upper auger mechanism 400, the first rotating shaft 110 is directly driven by the driver through the transmission main shaft 630, so that the lower auger mechanism 100 can have relatively large kinetic energy. In this way, the transmission main shaft 630 is beneficial to transmitting external power to the first rotating shaft 110 to drive the first rotating shaft 110 to rotate,

[0111] Optionally, the upper auger mechanism 400 comprises a second rotating shaft 410, a second auger blade 420 and a second throwing plate 430. The second auger blade 420 is helical and arranged around the circumferential wall of the second rotating shaft 410 and located at the input end of the second rotating shaft 410. The second throwing plate 430 is installed on the second rotating shaft 410 and arranged in sequence with the second auger blade 420 in the axial direction of the second rotating shaft 410 and located at the output end of the second rotating shaft 410. In this way, the second auger blade 420 is beneficial to conveying the bracts mixed with corn kernels from the previous process to the second throwing plate 430 and throwing the bracts and the corn kernels to the lower auger mechanism 100 for cleaning the corn kernels.

[0112] Illustratively, the second auger blade 420 is located upstream of the second throwing plate 430. The second auger blade 420 is used to receive the bracts mixed with the kernels discharged from the previous process. The second auger blade 420 transports the bracts and the kernels to the second throwing plate 430 by rotating with the second rotating shaft 410. In the process of transportation, the second auger blade 420 can stir the bracts to a certain extent, so that part of the kernels can fall off. The second throwing plate 430 rotates under the drive of the second rotating shaft 410 and can throw the bracts and the kernels wrapped therein to the lower auger mechanism 100.

[0113] Optionally, the upper auger mechanism 400 further comprises a second reinforcing member 440, which connects the second throwing plate 430 and the second rotating shaft 410. In this way, the second reinforcing member 440 helps to improve the connection strength between the second throwing plate 430 and the second rotating shaft 410. For example, the second reinforcing member 440 is a reinforcing sheet metal.

[0114] Optionally, the upper auger mechanism 400 further comprises two second bearing seats 450, which are respectively arranged at the axial ends of the second rotating shaft 410 and are used to connect with the outer frame 200. In this way, the second bearing seats 450 can reduce the friction generated when the upper auger mechanism 400 rotates relative to the outer frame 200 during operation, and help to form a rotating connection between the second rotating shaft 410 and the outer frame 200.

[0115] Optionally, the output end of the upper auger mechanism 400 is arranged adjacent to the input end of the lower auger mechanism 100. In this way, it is convenient to throw the husks mixed with corn kernels by the second throwing plate 430 into the lower auger mechanism 100.

[0116] For example, the first rotating shaft 110 and the second rotating shaft 410 are arranged in parallel, and the second throwing plate 430 and the first auger blade 150 are located on the same side of the first rotating shaft 110 in the axial direction. In this way, the second throwing plate 430 is adjacent to the first auger blade 150, which is used to receive the material thrown by the second throwing plate 430, so that the throwing path of the material between the upper auger mechanism 400 and the lower auger mechanism 100 can be shortened, and the dispersion of the material in the throwing path can be reduced.

[0117] Optionally, the husk cleaning device further comprises a plurality of grass guide plates 500, which are arranged in sequence and at intervals along the axis of the first rotating shaft 110. The grass guide plates 500 are fixed relative to the outer frame 200, and the cleaning teeth 120, the first blocking member 131, and part of the first rotating shaft 110 are located between the grass guide plates 500 and the screen plate 300. In this way, the grass guide plates 500 help to cooperate with the inclined cleaning teeth 120 to clean the corn kernels in the husks and provide guidance for the husks.

[0118] For example, the plurality of grass guide plates 500 are mounted on an upper cover, and the upper cover and the screen plate 300 form a cylindrical auger passage. The plurality of grass guide plates 500 form guide grooves on the inner side wall of the auger passage, and the cleaning teeth 120 and the first blocking member 131 are located in the auger passage to turn the material. The auger passage can limit the material from splashing wildly during the turning process and provide guidance for the husks to move downstream of the cleaning teeth 120.

[0119] Further, the upper cover is welded and fixed with the sieve plate 300, or is fixed by other ways, and the grass guide plate 500 can be fixed relative to the outer frame 200.

[0120] Optionally, as shown in Figure 10 、 Figure 14 and Figure 15 , the grass guide plate 500 is in a spiral or circular arc plate structure.

[0121] In other embodiments, the grass guide plate 500 is a straight plate mechanism arranged in an inclined manner.

[0122] Optionally, in the axial direction of the first rotating shaft 110, the interval between the two adjacent grass guide plates 500 at the end is greater than the interval between the two adjacent grass guide plates 500 at the middle.

[0123] In this way, at the inlet end and the outlet end of the stir dragon channel, the interval between the grass guide plates 500 is relatively large, facilitating the rapid entry or exit of the material into or out of the stir dragon channel, and avoiding the blockage of the stir dragon channel. And to the middle of the stir dragon channel, the interval between the grass guide plates 500 gradually decreases, increasing the transportation distance of the material and increasing the contact opportunity with the cleaning teeth 120, so as to improve the separation quality.

[0124] The working process of the utility model will be described below through an embodiment:

[0125] The husk mixed with corn kernels is transported to the second stir dragon blade 420 in the upper stir dragon mechanism 400 in the previous process, and the husk moves along the second stir dragon blade 420 to the second throwing plate 430. In this process, if the corn kernels fall from the husk, they can fall to the sieve plate 300 and enter the collecting equipment below the sieve plate 300 through the through hole in the sieve plate 300;

[0126] The second throwing plate 430 throws the husk mixed with corn kernels to the first stir dragon blade 150 in the lower stir dragon mechanism 100 under the action of the rotation of the second rotating shaft 410. The first stir dragon blade 150 rotates under the driving of the first rotating shaft 110, so that the husk mixed with corn kernels moves along the first stir dragon blade 150 to the cleaning teeth 120 and the first blocking piece 131. In this process, the cleaning teeth 120 constantly push the husk and generate a certain boost to the husk, so that the corn kernels in the husk fall from the husk to the sieve plate 300 and enter the collecting equipment below the sieve plate 300 through the through hole in the sieve plate 300, while the husk enters the first throwing plate 160 along the cleaning teeth 120 and the grass guide plate 500, and is finally thrown to the next process under the action of the rotation of the first throwing plate 160.

[0127] A corn harvester is also provided, which comprises the husk cleaning device described above.

[0128] In other embodiments, another kind of stirring mechanism is provided, which comprises a first rotating shaft 110, a plurality of cleaning tooth groups and a second blocking member 132. The plurality of cleaning tooth groups comprise a plurality of cleaning teeth 120 arranged along the axial direction of the first rotating shaft 110 in sequence, and the plurality of cleaning tooth groups are distributed at intervals around the axis of the first rotating shaft 110. The second blocking member 132 is fixed to the first rotating shaft 110 and is arranged between two adjacent cleaning tooth groups in the circumferential direction of the first rotating shaft 110. The height of the second blocking member 132 is less than or equal to the height of the cleaning teeth 120.

[0129] In addition, the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A flight mechanism characterized in that, include: First rotating shaft (110); Cleaning teeth (120), a plurality of cleaning teeth (120) are provided, and the plurality of cleaning teeth (120) are arranged around the outer wall of the first rotating shaft (110); The first baffle (131) is provided in multiple ways. Along the axial direction of the first rotating shaft (110), the multiple cleaning teeth (120) are connected to each other through the first baffle (131).

2. The auger mechanism of claim 1, wherein, The cleaning teeth (120) are provided in multiple sets. Each set of cleaning teeth (120) includes several cleaning teeth (120) arranged sequentially along the axial direction of the first rotating shaft (110). Each set of cleaning teeth (120) is arranged at intervals around the axis of the first rotating shaft (110).

3. The auger mechanism of claim 2, wherein, All the cleaning teeth (120) in the same group are connected by the same first barrier (131).

4. The auger mechanism of claim 2, wherein, The first barrier (131) is connected to two adjacent cleaning teeth (120) in the same group along the first rotation axis (110).

5. The auger mechanism of claim 2, wherein, The first blocking member (131) is spaced apart from the first rotating shaft (110).

6. The auger mechanism of claim 2, wherein, The height of the first baffle (131) is less than or equal to the height of the cleaning tooth (120). The first end of the cleaning tooth (120) is connected to the first rotating shaft (110), and the second end of the cleaning tooth (120) is suspended. The first baffle (131) is located between the second end and the first end and is spaced apart from the second end.

7. The auger mechanism of claim 2, wherein, It also includes a second baffle (132), which is fixed to the first rotating shaft (110) in the circumferential direction of the first rotating shaft (110). The second baffle (132) is disposed between two adjacent sets of cleaning teeth (120); and the height of the second baffle (132) is less than or equal to the height of the cleaning teeth (120).

8. The auger mechanism of claim 1, wherein, It also includes a first auger blade (150), which is spirally wound on the first rotating shaft (110) and installed at the input end of the first rotating shaft (110).

9. The auger mechanism of claim 8, wherein, It also includes a first throwing plate (160), which is installed at the output end of the first rotating shaft (110) along the axial direction of the first rotating shaft (110). The first throwing plate (160) and the first auger blade (150) are located on opposite sides of the cleaning tooth (120).

10. The auger mechanism of claim 9, wherein, It also includes a first reinforcing member (170), which connects the first throwing plate (160) and the first rotating shaft (110).

11. The auger mechanism of claim 9, wherein, At least a portion of the first guard member (131) is fixedly connected to the first throwing plate (160).

12. A flight mechanism according to any one of claims 1 to 11, wherein, The cleaning teeth (120) are set at an angle to the axis of the first rotating shaft (110).

13. The auger mechanism of claim 12, wherein, The first barrier (131) is a baffle, a barrier net, or a barrier bar.

14. A beak cleaning device, characterized in that The device comprises an outer frame (200), a sieve plate (300), an upper stirring mechanism (400) and a stirring mechanism as claimed in claim 13, which is a lower stirring mechanism (100), the sieve plate (300) is provided with two and installed on the outer frame (200), the upper stirring mechanism (400) and the lower stirring mechanism (100) are respectively arranged above the two sieve plates (300) and connected with the outer frame (200) at both ends.

15. The bur clearing device of claim 14, wherein, The two sieve plates (300) are connected or arranged at intervals.

16. The bur clearing device of claim 15, wherein, Further comprising a transmission mechanism (600) connected with the lower stirring mechanism (100) and the upper stirring mechanism (400) to transmit external power to the lower stirring mechanism (100) and the upper stirring mechanism (400).

17. The bur clearing device of claim 16, wherein, The upper stirring mechanism (400) comprises: a second rotating shaft (410); a second stirring blade (420) in a spiral shape around the circumferential wall of the second rotating shaft (410) and located at the input end of the second rotating shaft (410); a second throwing plate (430) installed on the second rotating shaft (410) and arranged in sequence with the second stirring blade (420) in the axial direction of the second rotating shaft (410) and located at the output end of the second rotating shaft (410).

18. The bur clearing device of claim 17, wherein, The upper stirring mechanism (400) further comprises a second reinforcing member (440) connecting the second throwing plate (430) and the second rotating shaft (410).

19. The bur clearing device of claim 17, wherein, The output end of the upper stirring mechanism (400) is arranged adjacent to the input end of the lower stirring mechanism (100).

20. The bract cleaning device of claim 16, wherein, Further comprising a plurality of grass guide plates (500) arranged at intervals in sequence along the axis of the first rotating shaft (110), the grass guide plates (500) are fixed relative to the outer frame (200), the cleaning teeth (120), the first blocking member (131) and part of the first rotating shaft (110) are located between the grass guide plates (500) and the sieve plates (300).

21. The bract cleaning device of claim 20, wherein, The grass guide plates (500) are in the form of a spiral or circular arc plate structure.

22. The bur clearing device of claim 20, wherein, In the axial direction of the first rotating shaft (110), the spacing between the two adjacent grass guide plates (500) at the end is greater than the spacing between the two adjacent grass guide plates (500) at the middle.

23. A corn harvester characterized by The device comprises the bract cleaning device as claimed in any one of claims 17-22.

24. A stirring mechanism comprising: a first rotating shaft (110); a plurality of cleaning tooth groups, each cleaning tooth group comprising a plurality of cleaning teeth (120) arranged in sequence along the axial direction of the first rotating shaft (110) and distributed at intervals around the axis of the first rotating shaft (110); A second baffle (132) is fixed with the first rotating shaft (110) and arranged between two adjacent groups of the cleaning teeth (120) in the circumferential direction of the first rotating shaft (110), and the height of the second baffle (132) is less than or equal to the height of the cleaning teeth (120).

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