Corn thresher

Abstract

The utility model discloses a corn thresher, and belongs to the technical field of corn processing devices. Comprising a rack, a conveying channel is arranged on the rack, a threshing structure is arranged on one side of the conveying channel, and corn in the conveying channel is threshed through the threshing structure; the material conveying channel is movably connected with the machine frame, the material conveying channel is further elastically connected with the machine frame through an elastic structure, and the elastic structure applies elastic force towards the threshing structure to the material conveying channel; the distance between the material conveying channel and the threshing structure can be changed under the action of the elastic structure, when corns with different diameters are threshed, the elastic force of the elastic structure on the material conveying channel enables the corns to be pushed to the threshing structure through the material conveying channel, and a good threshing effect is achieved on the corns with different sizes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to corn processing device technical field, specifically belongs to a corn thresher. BACKGROUND

[0002] Before making various feed, food with corn as raw material, need to carry out the threshing treatment to corn, traditional corn threshing only relies on manual, not only extremely consumes manpower, threshing efficiency is very low, the appearance of corn thresher solves this problem to a certain extent, but in some hilly areas in the south, the climate gap every year, caused the overall size of corn to be different, the traditional thresher in use, easy to appear due to corn cob size different and cause the threshing not complete condition, when corn cob is larger, easy to appear the condition of being stuck in the thresher, influence the operation of machine. CONTENT OF UTILITY MODEL

[0003] Therefore, the utility model aims at overcoming the deficiency in prior art, and provides a corn thresher, and the following technical scheme is provided in the application:

[0004] Including frame, the frame is provided with the material conveying channel, one side of the material conveying channel is provided with the threshing structure, and the threshing structure threshes the corn in the material conveying channel, the material conveying channel is movably connected with the frame, and the material conveying channel is also elastically connected with the frame through the elastic structure, and the elastic structure applies elastic force to the material conveying channel towards the threshing structure.

[0005] The material conveying channel is movably arranged, and the elastic force applied by the elastic structure to the material conveying channel reduces the spacing between the material conveying channel and the threshing structure when the corn of different sizes passes through the material conveying channel, so that the corn is pressed towards the threshing structure, and even if the size of the corn is different, the corn can also be in contact with the threshing structure and be threshed by the threshing structure.

[0006] The threshing structure includes a rotating roller and a threshing knife, the rotating roller bearing is installed on the frame, the rotating roller is spirally fixed with a material pushing protrusion, the threshing knife is located on one side of the rotating roller, and the threshing knife and the rotating roller extrude and cut the corn.

[0007] The corn is pressed against the rotating roller, and the rotating roller is in contact with the corn. The rotating roller rotates to make the pushing protrusions rub and press against the corn. The pushing protrusions are helical, and when the pushing protrusions rotate and contact the corn, the pushing protrusions push the corn in the feeding channel. At the same time, the pushing protrusions can knock off some corn kernels due to the collision with the corn. The friction of the rotating roller and the radial collision of the pushing protrusions push the corn to the threshing knife. The corn is pressed by the threshing knife and the rotating roller. Under the action of the pressing force, the threshing knife can cut into the gap of the corn kernel, press the corn kernel, and thresh the corn kernel. The corn is columnar, and when the corn is in close contact with the rotating roller, the corn rotates due to the friction. The threshing knife can thresh the corn kernels around the corn cob.

[0008] The feeding channel comprises a threshing cover, the threshing cover has an opening at the bottom, and the rotating roller is located at the opening. The threshing knife is fixed to the bottom wall of the threshing cover.

[0009] The elastic structure comprises a mounting column and a fixed plate. The mounting column is fixed to the rack. The top of the fixed plate is fixed to the threshing cover, and the bottom of the fixed plate penetrates the mounting column. A compression spring is sleeved on the mounting column, and the compression spring applies an elastic force downward to the fixed plate.

[0010] The mounting column is located at one end of the threshing cover. A support rod is fixed to the rack and located on both sides of the other end of the threshing cover. The threshing cover and the support rod are connected by bolts arranged on the same axis, and the threshing cover can rotate around the bolts.

[0011] The mounting column has external threads. An adjusting nut is mounted on the mounting column by the external threads. The bottom of the adjusting nut abuts against the compression spring.

[0012] The distance between the adjusting nut and the fixed plate can be changed by rotating the knob, that is, the compression distance of the compression spring is changed, so that the pressure of the compression spring is adjusted.

[0013] A collecting hopper is arranged on the rack and located below the rotating roller.

[0014] A driving motor is further arranged on the bottom of the rack and in transmission connection with the rotating roller.

[0015] Gaps are left between the opening at the bottom of the threshing cover and the outer wall of the rotating roller to prevent the pushing protrusions from colliding with the threshing cover. Grain leakage holes are arranged on both sides of the opening.

[0016] After the corn kernels are threshed in the threshing cover, the corn kernels can fall into the collecting hopper through the grain leakage holes.

[0017] The edge of the grain leakage hole on the opening side is closed, and the caliber of the threshing cover gradually decreases from the front end to the rear end, the bottom of the two ends of the threshing cover is provided with a closed structure, the closed structure of the larger caliber end is fixedly connected with the threshing cover, and the closed structure of the smaller caliber end is fixedly connected with the rack, and the closed structure of the smaller caliber end abuts against the threshing cover under the action of the compression spring.

[0018] The corn cob is put into the front end with larger opening, and the corn cob moves in the threshing cover after starting, and the corn kernels are slowly threshed, so that the diameter gradually decreases, and the diameter of the threshing cover also decreases to adapt to the corn kernels, so that the corn kernels are more completely threshed; and the closed structures arranged at the two ends can hold the corn entering and discharging the threshing cover, so that the corn is conveniently put into and discharged from the threshing cover.

[0019] In summary, due to the adoption of the above technical scheme, the beneficial effects of the corn thresher are as follows:

[0020] The distance between the material conveying channel and the threshing structure can be changed under the action of the elastic structure, and the elastic force of the elastic structure on the material conveying channel pushes the corn to the threshing structure when different diameters of corn are threshed, so that the corn of different diameters has good threshing effect.

[0021] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 present application, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can be obtained without creative labor.

[0023] Figure 1 It is a schematic view of the structure of a corn thresher.

[0024] Figure 2 It is Figure 1 the enlarged view of A in the figure.

[0025] Figure 3 It is Figure 1 the enlarged view of B in the figure.

[0026] Figure 4 It is a schematic view of the threshing knife in the corn thresher.

[0027] Figure 5 It is another view of the corn thresher.

[0028] Figure 6It is a schematic view of a corn thresher with a shell and a feeding hopper.

[0029] Label: 1, frame; 11, support rod; 12, bolt; 13, collection hopper; 2, feeding channel; 21, threshing cover; 22, grain leakage hole; 3, threshing structure; 31, rotating roller; 32, threshing knife; 33, material pushing protrusion; 4, elastic structure; 41, mounting column; 42, fixed plate; 43, compression spring; 44, adjusting nut; 5, driving motor. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are for the purpose of explaining the present application, and cannot be understood as a limitation of the present application.

[0031] In the present application, unless explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the present application, unless explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0033] Please refer to Figures 1-5 As shown in the figure, the utility model provides a kind of corn thresher, including frame 1, frame 1 is provided with feeding channel 2, feeding channel 2 side is provided with threshing structure 3, and threshing structure 3 carries out threshing to corn in feeding channel 2;Feeding channel 2 is movably connected with frame 1, and feeding channel 2 and frame 1 are also elastically connected by elastic structure 4, and elastic structure 4 exerts elastic force towards threshing structure 3 on feeding channel 2.

[0034] The threshing structure 3 comprises a rotating roller 31 and a threshing knife 32, the rotating roller 31 is bearing-mounted on the frame 1, the rotating roller 31 is fixed with a pushing protrusion 33 spirally around the rotating roller 31, and the threshing knife 32 is located at one side of the rotating roller 31 and performs extrusion and cutting on the corn together with the rotating roller 31.

[0035] As shown in the figure, the front end of the threshing knife 32 is curved, that is, close to the end of the feeding direction of the feeding channel 2, when cutting into the corn, it has the function of twisting the corn kernel, which is convenient for threshing, and the length gradually increases from front to back, that is, the depth of the front part is smaller, and the depth of the back part is larger, and when cutting into the corn, it is cut from shallow to deep. Figure 4

[0036] The feeding channel 2 comprises a threshing cover 21, the bottom of the threshing cover 21 is provided with an opening, the rotating roller 31 is located at the opening, and the threshing knife 32 is fixed to the bottom wall of the threshing cover 21.

[0037] It is worth noting that when the space in the threshing cover 21 is large, the pushing protrusion 33 is spirally arranged on the rotating roller 31, so that the rotation generated by the pushing protrusion 33 can make the corn deviate to one side in the threshing cover 21, the rotating direction of the rotating roller 31 is kept unchanged, the threshing knife 32 is fixed to the side where the corn deviates in the threshing cover 21, so as to ensure smooth threshing.

[0038] The elastic structure 4 comprises a mounting column 41 and a fixed plate 42, the mounting column 41 is fixed to the frame 1, the top of the fixed plate 42 is fixed to the threshing cover 21, the bottom of the fixed plate 42 penetrates through the mounting column 41, a compression spring 43 is sleeved on the mounting column 41, and the compression spring 43 applies downward elastic force to the fixed plate 42.

[0039] The mounting column 41 is located at one end of the threshing cover 21, the frame 1 is fixed with a support rod 11, the support rod 11 is located at both sides of the other end of the threshing cover 21, the threshing cover 21 is connected with the support rod 11 through a bolt 12 arranged on the same axis, and the threshing cover 21 can rotate around the bolt 12.

[0040] The mounting column 41 is provided with external threads, an adjusting nut 44 is mounted on the mounting column 41 through the external threads, and the bottom of the adjusting nut 44 abuts against the compression spring 43.

[0041] In another scheme, the two ends of the threshing cover 21 are connected with the frame 1 in a sliding manner, that is, the threshing cover 21 can move vertically on the frame 1, and the specific sliding connection modes include but are not limited to sleeve rod connection and sliding rail and sliding block connection; the frame 1 is also provided with the elastic structure 4 to apply downward elastic force to the threshing cover 21, so that the threshing cover 21 is close to the rotating roller 31 under the action of the elastic force.

[0042] The frame 1 is provided with a collecting hopper 13, the collecting hopper 13 is located below the rotating roller 31, and the bottom of the collecting hopper 13 is also provided with a corn kernel discharge port for taking out the corn kernel.

[0043] ​The bottom of the frame 1 is also provided with a driving motor 5, which is in transmission connection with the rotating roller 31. The transmission connection adopts the prior art, for example, a driving gear or a driving wheel is arranged on the main shaft of the driving motor 5, a driven gear or a driven wheel is fixed on the rotating roller 31, the driving gear and the driven gear are connected through a chain, and the driving wheel and the driven wheel are connected through a belt.

[0044] The gap between the opening at the bottom of the threshing cover 21 and the outer wall of the rotating roller 31 is greater than the height of the material pushing protrusion 33 but smaller than the diameter of a general corn cob, and the two sides of the opening are provided with grain leakage holes 22, the size of the grain leakage holes 22 is greater than the size of the corn kernel and smaller than the diameter of the corn cob; at the same time, when the internal space of the threshing cover 21 is large, the corn will be offset, the side of the threshing cover 21 where the corn is offset will receive a greater extrusion force, and the bottom of the grain leakage hole 22 on this side can be connected and reinforced by steel bars to be closed to prevent deformation.

[0045] The diameter of the threshing cover 21 gradually decreases from the end far away from the elastic structure 4 to the end close to the elastic structure 4; the bottom of the two ends of the threshing cover 21 is provided with a closed structure, the closed structure at the end with a larger diameter is fixedly connected with the threshing cover 21, and the closed structure at the end with a smaller diameter is fixedly connected with the frame 1, and under the action of the compression spring 43, the threshing cover 21 at the end with a smaller diameter moves downward and abuts against the closed structure; that is, the closed structure lifts and limits the threshing cover 21.

[0046] The diameter of the threshing cover 21 gradually decreases from the end far away from the elastic structure 4 to the end close to the elastic structure 4; the bottom of the two ends of the threshing cover 21 is provided with a closed structure, the closed structure at the end with a larger diameter is fixedly connected with the threshing cover 21, and the closed structure at the end with a smaller diameter is fixedly connected with the frame 1, and under the action of the compression spring 43, the threshing cover 21 at the end with a smaller diameter moves downward and abuts against the closed structure; that is, the closed structure lifts and limits the threshing cover 21.

[0047] As shown in Figure 6 The frame 1 is also provided with a machine shell, the machine shell is fixedly provided with a feeding hopper, and the discharging port of the feeding hopper is in communication with the material inlet end of the threshing cover 21.

[0048] In specific implementation, the corn is placed in the threshing cover 21, the inner wall of the threshing cover 21 is in contact with the corn, the corn lifts the threshing cover 21, the threshing cover 21 rotates around the bolt 12, the compression spring 43 is compressed, the larger the diameter of the corn is, the greater the amplitude of the threshing cover 21 being lifted is, and the compression spring 43 is compressed more tightly, and the elastic force of the compression spring 43 on the threshing cover 21 also pushes the corn to the rotating roller 31, the driving motor 5 drives the rotating roller 31 to rotate, the corn moves in the threshing cover 21 under the spiral propulsion of the spiral material pushing protrusion 33, after the corn approaches the threshing knife 32, the corn is extruded by the threshing knife 32 and the rotating roller 31, under the action of the extrusion force, the threshing knife 32 cuts into the gap of the corn kernel, cuts and presses the corn kernel, and the corn kernel is threshed, at the same time, the corn rotates with the rotating roller 31 and is propelled in the threshing cover 21, the corn kernel is continuously threshed, and the smaller corn kernels fall through the grain leakage holes 22 into the collecting hopper 13.

[0049] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that those skilled in the art can make changes, modifications, substitutions and variations to the above-described embodiments within the scope of the present application.

Claims

1. A corn threshing machine, comprising a frame (1), a material conveying channel (2) is arranged on the frame (1), a threshing structure (3) is arranged on one side of the material conveying channel (2), and the threshing structure (3) threshes corn in the material conveying channel (2); characterized in that: The material conveying channel (2) is movably connected with the rack (1), and the material conveying channel (2) is further elastically connected with the rack (1) through an elastic structure (4), and the elastic structure (4) applies an elastic force to the material conveying channel (2) towards the threshing structure (3); The threshing structure (3) comprises a rotating roller (31) and a threshing knife (32), the rotating roller (31) is bearing-mounted on the rack (1), a material pushing protrusion (33) is fixedly arranged on the rotating roller (31) in a spiral manner, and the threshing knife (32) is located on one side of the rotating roller (31); the threshing knife (32) and the rotating roller (31) are used for extruding and cutting corn. The material conveying channel (2) comprises a threshing cover (21), the threshing cover (21) is provided with an opening at the bottom, the rotating roller (31) is located at the opening, and the threshing knife (32) is fixed to the bottom wall of the threshing cover (21). The elastic structure (4) comprises a mounting column (41) and a fixed plate (42), the mounting column (41) is fixed to the rack (1), the top of the fixed plate (42) is fixed to the threshing cover (21), the bottom of the fixed plate (42) penetrates through the mounting column (41), a compression spring (43) is sleeved on the mounting column (41), and the compression spring (43) applies a downward elastic force to the fixed plate (42).

2. A maize sheller as claimed in claim 1 wherein: The mounting column (41) is located at one end of the threshing cover (21), the rack (1) is fixedly provided with a support rod (11), the support rod (11) is located on both sides of the other end of the threshing cover (21), the threshing cover (21) is connected with the support rod (11) through a bolt (12) arranged on the same axis, and the threshing cover (21) can rotate around the bolt (12).

3. A maize sheller as claimed in claim 1, wherein: The mounting column (41) is provided with external threads, an adjusting nut (44) is mounted on the mounting column (41) through the external threads, and the bottom of the adjusting nut (44) abuts against the compression spring (43).

4. A maize sheller as claimed in claim 1, wherein: The rack (1) is provided with a collecting hopper (13), and the collecting hopper (13) is located below the rotating roller (31).

5. A maize sheller as claimed in claim 1, wherein: A driving motor (5) is further mounted at the bottom of the rack (1), and the driving motor (5) is in transmission connection with the rotating roller (31).

6. A maize sheller as claimed in claim 2, wherein: Gaps are arranged between the edges of the threshing cover (21) on both sides and the rotating roller (31), and grain leakage holes (22) are arranged on both sides of the opening.

7. A maize cob sheller as claimed in claim 6 wherein: The edges of the grain leakage holes (22) on one side of the opening are in a closed type; the diameter of the threshing cover (21) gradually decreases from the front end to the rear end, the bottom of the threshing cover (21) at both ends is provided with a closed structure, the closed structure at the end with a larger diameter is fixedly connected with the threshing cover (21), the closed structure at the end with a smaller diameter is fixedly connected with the rack (1), and the closed structure at the end with a smaller diameter abuts against the threshing cover (21) under the action of the compression spring.

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