A combine for harvesting both ears and stalks and a corn harvester

Abstract

The present application relates to a kind of ear stem harvesting header and corn harvester, including cutter and multiple feeding channels, also including grass removal mechanism, grass removal mechanism includes grass removal auger, and grass removal auger includes auger shaft and multiple auger blades, each section of auger blade is fixed on the outer wall of auger shaft spirally, multiple auger blades are arranged at intervals, and are respectively used to transport weed to any end of auger blade;Grass removal mechanism is set in the rear of cutter, and multiple auger blades are one-to-one corresponding below multiple feeding channels.The beneficial effect is: auger blade is multiple and arranged at intervals, and the weed at one auger blade is transported to any end by corresponding auger blade, and falls in the position between two auger blades under the action of gravity, and will not be moved to the next weed entry along the grass removal auger, so as to effectively avoid the weed accumulation and jam in grass removal auger.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural machinery, in particular to a stalk and ear harvesting header and a corn harvester. BACKGROUND

[0002] The header is a mechanism used for cutting crops and feeding them rearward at the front end of the harvester. For a corn harvester, after the corn crops enter the feeding channel of the header, the lower part of the crops is cut off by the cutter at the lower part of the header, the crops are fed rearward along the feeding channel, the ears are separated from the stalks when passing through the ear picking roller, the ears fall onto the ear conveying belt, and the stalks continue to be conveyed rearward to the stalk crushing device, wherein the front side of the ear conveying belt is provided with a front baffle, the front baffle is provided with a plurality of feeding notches, and the lower end of the stalk passes through the corresponding feeding notches and is fed rearward.

[0003] The existing stalk and ear harvesting header has a large distance between the cutter and the grass discharging auger, after the stalk is cut off, the upper part is pushed rearward by the sweep chain, in this process, the stalk only receives a rearward force at the position of contacting the sweep chain, and when the bottom of the stalk contacts the forward rotating grass discharging auger, a forward reaction force is generated, which easily breaks the stalk. Especially, the front section of the existing vertical roller type header does not have a grass discharging auger, which causes the stalk and the grass at the bottom of the stalk to enter the feeding notches after being cut off, and the grass easily blocks the feeding notches.

[0004] The grass discharging auger in the existing header is only an auger with continuous spiral blades, the grass is conveyed to one end, the grass discharging efficiency is low, and the grass under multiple sweep feeding channels gradually accumulates at one end, which easily blocks. SUMMARY

[0005] The technical problem to be solved by the present application is how to improve the grass discharging efficiency.

[0006] The technical solution for solving the above technical problem is as follows: a grass discharging mechanism, comprising a grass discharging auger, the grass discharging auger comprises an auger shaft and a plurality of sections of auger blades, each section of the auger blades is spirally fixed to the outer wall of the auger shaft, the plurality of sections of the auger blades are arranged at intervals and are respectively used for conveying the grass to any one end of the auger blades.

[0007] The beneficial effects of the present application are: the spiral stirring blade arranged at the weed entering position can push the weeds to either end, thereby avoiding the weeds from gradually accumulating during the conveying process along the weed conveying stirring blade.If the continuous stirring blade is used, the weeds at multiple positions are conveyed to one end by the stirring blade, and new weeds continuously enter the weed conveying stirring blade during the conveying process, so that the weeds conveyed by the stirring blade become more and more, thereby forming accumulation.The stirring blade of the present application is arranged in multiple sections and at intervals, and the weeds at one stirring blade position are conveyed to either end by the corresponding stirring blade, and then fall in the position between the two stirring blade sections under the action of gravity, and cannot move along the weed conveying stirring blade to the next weed entering position, thereby effectively avoiding the accumulation and blockage of weeds in the weed conveying stirring blade.

[0008] On the basis of the above technical solution, the present application can be further improved as follows.

[0009] Further, the stirring blades on the stirring shaft are divided into two groups, and the spiral directions of the two groups are opposite.

[0010] The beneficial effects of the above further scheme are: avoiding the weeds from being conveyed to one end of the weed conveying stirring blade, and reducing the accumulation of weeds.

[0011] Further, the two groups of stirring blades are symmetrically arranged.

[0012] The beneficial effects of the above further scheme are: uniform weed conveying.

[0013] Further, a gap is left between the two stirring blade sections near the left and right ends of the stirring shaft and the corresponding end portions of the stirring shaft, and the multiple stirring blade sections convey the weeds to the direction close to the corresponding end portions of the stirring shaft.

[0014] The beneficial effects of the above further scheme are: the weeds are conveyed to the two ends of the stirring shaft respectively, the weeds are more dispersed, and the weeds are avoided from gathering in the middle of the stirring shaft.

[0015] Further, a reinforcing rib arranged along the edge in a spiral manner is further fixed at the edge of each stirring blade section.

[0016] The beneficial effects of the above further scheme are: increasing the strength of the stirring blade, thereby increasing the weed conveying effect.

[0017] Further, a propeller wheel is further arranged in front of the weed conveying stirring blade, the propeller wheel is rotated rearward at the upper end, and is used for propelling the weeds to the weed conveying stirring blade.

[0018] The beneficial effects of the above further scheme are: after the stems are cut by the cutter, the weeds at the lower part of the stems are propelled by the propeller wheel to the position between the propeller wheel and the weed conveying stirring blade, thereby effectively solving the problem that the forward reaction force is generated when the bottom of the stem contacts the forward rotating weed conveying stirring blade, and the stem is pulled and broken.

[0019] Further, the dial wheel comprises a dial wheel shaft and a plurality of dial wheel blades, the dial wheel blades extend along the axial direction of the dial wheel shaft and are fixedly connected with the dial wheel shaft, and the plurality of dial wheel blades are uniformly arranged and fixedly connected along the circumferential direction of the dial wheel shaft.

[0020] The beneficial effect of the further scheme is that the plurality of dial wheel blades have high dialing efficiency.

[0021] Further, the dial wheel blades are arranged to be inclined against the rotation direction of the dial wheel.

[0022] The beneficial effect of the further scheme is that the dial wheel dials the weeds in the direction of the weed delivery auger, and the inclined dial wheel blades can avoid the weeds being brought back to the cutter.

[0023] Alternatively, the spiral directions of the plurality of sections of the auger blades on the auger shaft are the same.

[0024] The beneficial effect of the further scheme is that the weeds entering the weed delivery auger are delivered in the same direction, thereby ensuring the smoothness of the weed delivery.

[0025] The present application also provides a corn and stalk harvesting header, comprising a cutter and a plurality of feeding channels, and further comprising the weed delivery mechanism arranged behind the cutter, and the plurality of sections of the auger blades correspondingly below the plurality of feeding channels.

[0026] The corn and stalk harvesting header is a vertical roller type header or a horizontal roller type header, and especially for the existing vertical roller type header, the weed delivery mechanism can avoid the weeds entering the feeding gap, thereby effectively avoiding the weeds blocking the feeding gap or winding around the vertical ear picking roller.

[0027] The beneficial effect is that the stalks are fed into the header along the feeding channels, and the feeding channels are positions where the weeds are more numerous, and the spiral auger blades arranged at the feeding channels can push the weeds laterally, thereby avoiding the weeds accumulating at the positions corresponding to the feeding channels.

[0028] The present application also provides a corn harvester comprising the corn and stalk harvesting header. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a weed delivery auger structure of the present application;

[0030] Figure 2 It is a top view of the weed delivery mechanism of the present application;

[0031] Figure 3 It is a side view of the corn and stalk harvesting header of the present application;

[0032] Figure 4 It is a top view of the corn and stalk harvesting header of the present application;

[0033] Figure 5 This is a front view of the spike and stem harvesting platform of the present invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Cutter; 2. Straw-discharging auger; 21. Auger shaft; 22. Auger blades; 3. Dial wheel; 31. Dial wheel shaft; 32. Dial wheel blades; 4. Rice-picking chain; 5. Harvesting platform. Detailed Implementation

[0036] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0037] like Figures 1-5 As shown, this embodiment provides a weed removal mechanism, including a weed removal auger 2. The weed removal auger 2 includes an auger shaft 21 and multiple auger blades 22. Each auger blade 22 is spirally fixed to the outer wall of the auger shaft 21. The multiple auger blades 22 are spaced apart and are used to convey weeds to any end of the auger blades 22.

[0038] In one specific embodiment, such as Figure 4 and Figure 5 As shown, a cutter 1 is installed on the header, and above the cutter 1 are multiple reeling chains 4, which are paired to form feeding channels. The stalks are fed into the header along the feeding channels. These feeding channels are where weeds are most abundant. A spiral auger blade 22 is installed at the feeding channels to push the weeds laterally, thus preventing them from accumulating in the corresponding feeding channels. The auger blade 22 is multi-segmented and spaced apart. After the weeds in one feeding channel are transported to one side by the auger blade 22, they fall under gravity and do not move along the weed discharge auger 2 to another feeding channel, effectively preventing weeds from accumulating and clogging at the weed discharge auger 2.

[0039] Specifically, the straw-draining auger 2 is rotatably mounted on the ear-picking platform 5 via bearings.

[0040] Each of the auger blades 22 is positioned below the feeding channel formed by a corresponding set of reeling chains 4.

[0041] In any of the above embodiments, preferably, the auger blades 22 on the auger shaft 21 are divided into two groups, left and right, with opposite spiral directions.

[0042] The two sets of auger blades 22 can have the same number of segments, for example, each set has 2 auger blade segments; or the two sets of auger blades 22 can have different numbers of segments, for example, one set has 3 auger blade segments and the other set has 2 auger blade segments, or one set has 3 auger blade segments and the other set has 1 auger blade segment. The number of auger blades 22 can be flexibly adjusted.

[0043] This prevents weeds from being transported to one end of the weed-draining auger 2, reducing weed accumulation.

[0044] In any of the above embodiments, preferably, the two sets of auger blades 22 are arranged symmetrically.

[0045] If the number of auger blades 22 is even, then the two groups of auger blades 22 in the middle of the auger shaft 21 have the same number of segments. In the left group, all the auger blades 22 have the same spiral direction, and in the right group, all the auger blades 22 have the same spiral direction. The spiral directions of the auger blades 22 in the left and right groups are opposite. If the number of auger blades 22 is odd, then the spiral direction of one auger blade 22 in the middle of the auger shaft 21 is the same as that of one of the auger blades 22 on one side. The spiral directions of the auger blades 22 on the left and right sides in the middle are opposite. In other words, the number of segments in the two groups of auger blades 22 differs by only one.

[0046] In any of the above embodiments, preferably, there is a gap between the two sections of the auger blades 22 near the left and right ends of the auger shaft 21 and the corresponding ends of the auger shaft 21, and the multiple sections of the auger blades 22 transport weeds toward the direction near the corresponding ends of the auger shaft 21.

[0047] In one specific embodiment, such as Figure 3 As shown, the upper end of the auger shaft 21 rotates forward, the helical direction of the auger blade 22 on the left side of the auger shaft 21 is right-handed, and the helical direction of the auger blade 22 on the right side of the auger shaft 21 is left-handed. Figure 2 and Figure 3 As shown, during the forward rotation of the auger shaft 21, the left auger blades 22 push the weeds to the left, and the right auger blades 22 push them to the right, until they reach the auger shaft 21 where there are no auger blades 22. Under the influence of gravity, the weeds fall downwards off the cutting platform. In this way, the weeds are transported and discharged to both sides of the auger, avoiding concentration in the middle of the auger and thus preventing weed accumulation.

[0048] In any of the above embodiments, preferably, each segment of the auger blade 22 is further fixed with a reinforcing rib spirally arranged along the edge.

[0049] Specifically, the reinforcing rib is a helical rod with the same pitch and helical diameter as the edge of the auger blade 22. Preferably, the reinforcing rib can be made of steel bars. In this way, the strength of the auger blade is increased, thereby improving the grass removal effect.

[0050] In any of the above embodiments, preferably, a deflector 3 is provided in front of the weed-removing auger 2, the upper end of the deflector 3 rotating backward to move the weeds to the weed-removing auger 2.

[0051] After the cutter cuts the stem, a guide wheel moves the weeds at the bottom of the stem between the guide wheel and the weed-discharging auger. This effectively solves the problem of the stem breaking due to the forward reaction force generated when the bottom of the stem contacts the forward-rotating auger. The weed-discharging auger 2 and the guide wheel 3 rotate in opposite directions. The weeds fall downwards from between the auger and the guide wheel, reducing the amount of weeds in subsequent devices.

[0052] Specifically, the dial 3 is rotatably mounted on the ear-picking platform 5 via bearings.

[0053] In any of the above embodiments, preferably, the dial 3 includes a dial shaft 31 and a plurality of dial blades 32, the dial blades 32 extend along the axial direction of the dial shaft 31 and are fixedly connected to the dial shaft 31, and the plurality of dial blades 32 are evenly arranged along the circumferential direction of the dial shaft 31.

[0054] Specifically, such as Figures 2-3 As shown, each of the dial blades 32 is rectangular plate-shaped, and one side of its width direction is fixed to the dial shaft 31.

[0055] In any of the above embodiments, preferably, such as Figure 3 As shown, the dial blade 32 is inclined in the opposite direction of the rotation of the dial 3.

[0056] The deflector feeds weeds toward the auger, and the tilted deflector blades prevent weeds from being carried back to the cutter along with the deflector blades.

[0057] In any of the above embodiments, preferably, each dial wheel blade 32 is further provided with a dial wheel reinforcing rib at the connection between it and the dial wheel shaft 31.

[0058] As a variation, the spiral directions of the multiple auger blades 22 are the same.

[0059] This embodiment also provides a stalk harvesting platform, including a cutter 1 and multiple feeding channels, and also includes the grass removal mechanism, which is located behind the cutter 1, with multiple auger blades 22 corresponding to each other below the multiple feeding channels.

[0060] The ear and stem harvesting platform is either a vertical roller harvester or a horizontal roller harvester. In particular, for existing vertical roller harvesters, the addition of a weed removal mechanism can prevent weeds from entering the feeding gap and effectively prevent weeds from getting tangled on the vertical ear-picking roller.

[0061] For a vertical roller header, the stalks enter the feeding channel and are cut by the cutter 1. The stalks move backward under the action of the reeling chain 4. The weeds below the stalks are fed to the weed-discharging auger 2 by the deflector 3. The auger 2 pushes the weeds below each feeding channel towards both sides of the header, causing them to fall between the auger blades 22 at adjacent ends, preventing weed accumulation and blockage. The stalks are then picked by the vertical picking roller along the reeling chain 4. The ears fall onto the conveyor belt below and are transported to one side of the header. The stalks are then fed backward by the picking roller.

[0062] This embodiment also provides a corn harvester, including the ear and stalk harvesting platform.

[0063] In the description of this invention, it should be noted that the terms "front," "rear," "left," and "right" refer to the front, rear, left, and right directions of the grass-clearing mechanism, the ear and stalk harvesting platform, and the corn harvester during operation. The terms "center," "longitudinal," "transverse," "length," "width," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spike and stalk harvesting platform, comprising a cutter (1) and multiple feeding channels, characterized in that, It also includes a weed-removing mechanism, which includes a weed-removing auger (2). The weed-removing auger (2) includes an auger shaft (21) and multiple auger blades (22). Each auger blade (22) is spirally fixed to the outer wall of the auger shaft (21). The multiple auger blades (22) are spaced apart and are used to convey weeds to any end of the auger blades (22). A deflector (3) is also provided in front of the weed-removing auger (2). The upper end of the deflector (3) rotates backward to move the weeds to the weed-removing auger (2). The opposite rotation of the weed-removing auger (2) and the deflector (3) is used to make the weeds fall down between the weed-removing auger (2) and the deflector (3). The grass removal mechanism is located behind the cutter (1), and the multiple segments of the auger blades (22) are located below the multiple feeding channels in a one-to-one correspondence. The dial (3) includes a dial shaft (31) and multiple dial blades (32). The dial blades (32) extend along the axial direction of the dial shaft (31) and are fixedly connected to the dial shaft (31). The multiple dial blades (32) are evenly arranged along the circumferential direction of the dial shaft (31). The dial blades (32) are inclined against the rotation direction of the dial (3).

2. The spike and stalk harvesting platform according to claim 1, characterized in that, The auger blades (22) on the auger shaft (21) are divided into two groups, left and right, with opposite spiral directions.

3. The spike and stalk harvesting platform according to claim 2, characterized in that, The two sets of auger blades (22) are symmetrically arranged.

4. The spike and stalk harvesting platform according to claim 2, characterized in that, There is a gap between the two sections of the auger blades (22) near the left and right ends of the auger shaft (21) and the corresponding ends of the auger shaft (21), and the multiple sections of the auger blades (22) transport weeds towards the direction near the corresponding ends of the auger shaft (21).

5. The spike and stalk harvesting platform according to claim 1, characterized in that, Each section of the auger blade (22) is also fixed with a reinforcing rib that is spirally arranged along the edge.

6. The spike and stalk harvesting platform according to claim 1, characterized in that, The multiple segments of the auger blades (22) on the auger shaft (21) have the same spiral direction.

7. A corn harvester, characterized in that, Includes the ear-stem harvesting platform as described in any one of claims 1-6.

Images