A high-efficiency corn grain harvester with an arranged conveying structure

Abstract

The present invention relates to the technical field of corn processing, and specifically to a high-efficiency corn grain harvester with an arranged conveying structure, comprising an outer frame and a positioning frame, a feeding trough being provided at one end of the top surface of the outer frame, and the positioning frame being fixedly installed at the middle section inside the outer frame, a rotating rod being rotatably provided at the center of the inner portion of the positioning frame, and a storage plate being fixedly installed at one side of the rotating rod inside the positioning frame; in the present invention, firstly, multiple groups of corn cobs are dynamically clamped so as to be compatible with corn cobs of different specifications and achieve a parallel multi-cob threshing effect; secondly, a coordinated mode of axial rotation and transverse and longitudinal radial slicing is adopted to achieve multi-directional composite threshing, forcing the corn cob threshing rate to be steadily improved; finally, through integrated sorting and discharging, the secondary threshing and screening processes are forced to be completed synchronously, effectively controlling the broken core mixing rate and improving the corn harvesting quality and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of corn processing, in particular to a high-efficiency corn grain harvester with an arrangement and conveying structure. Background Art

[0002] Corn is one of the world's major food crops, and mechanized harvesting technology directly affects production efficiency and economic benefits. Traditional corn harvesters mainly use roller threshing or impact threshing methods. This threshing method has problems such as incomplete threshing, high grain damage rate, and insufficient core-grain separation.

[0003] For example, Chinese patent CN212786703U discloses a small and efficient corn grain harvester that threshes corn using a threshing drum in conjunction with a reduction motor. Although this design can complete basic threshing operations, it still has the following key technical defects:

[0004] (1) It can only thresh a single root, which is difficult to meet the needs of large-scale harvesting;

[0005] (2) The fixed-size guide barrel cannot adapt to corn cobs of different sizes, which can easily lead to the deflection of small-diameter corn cobs, a reduction in the threshing contact area, and the jamming of large-diameter corn cobs, resulting in misalignment between the corn cobs and the threshing structure, affecting the uniformity of threshing;

[0006] (3) When threshing is done in a single rotation direction, the threshing efficiency of high-moisture corn drops sharply, and the remaining kernels are mostly concentrated in the grooves of the corn cob, forcing incomplete threshing.

[0007] (4) The post-processing efficiency is low. The kernels and broken cobs are easily mixed after threshing, and the corn cob discharge effect is poor. Summary of the Invention

[0008] The purpose of the present invention is to dynamically clamp multiple groups of corn cobs so as to be compatible with corn cobs of different specifications and achieve a parallel multi-cob threshing effect. Secondly, a coordinated method of axial rotation and transverse and longitudinal radial slicing is adopted to achieve multi-directional composite threshing, forcing the corn cob threshing rate to be steadily improved. Finally, through integrated sorting and discharge, the secondary threshing and screening processes are forced to be completed simultaneously, effectively controlling the broken core mixing rate and improving the quality and efficiency of corn harvesting.

[0009] The object of the present invention can be achieved by the following technical solution: A high-efficiency corn grain harvester with an arrangement and conveying structure comprises an outer frame and a positioning frame, wherein a feeding trough is provided at one end of the top surface of the outer frame, and the positioning frame is fixedly installed at the middle section inside the outer frame;

[0010] A rotating rod is rotatably provided at the center of the positioning frame, a storage plate is fixedly installed on one side of the rotating rod inside the positioning frame, and a plurality of groups of arc-shaped slots are equidistantly provided on the surface of the storage plate, an inserting and removing mechanism is provided on the outside of the storage plate, a multi-stage threshing mechanism is provided on the other side of the rotating rod inside the positioning frame, and a screening frame is provided at the bottom of the multi-stage threshing mechanism;

[0011] The outer portion of the rotating rod is fixedly sleeved with a reversing gear 1 at the front and rear sections, and a side surface of the rotating rod is equidistantly connected to a plurality of groups of tapered rods, and the outer portion of the tapered rod is fixedly sleeved with a reversing gear 2 near the end of the rotating rod;

[0012] The inserting and removing mechanism includes two groups of screw rods 1, which are respectively arranged at the front and rear ends of the storage plate, and one end of the screw rod 1 is rotatably connected to the corresponding inner wall of the positioning frame. One end of one group of screw rods 1 close to the inner wall of the storage plate is provided with a motor 1.

[0013] Furthermore, the two groups of spiral rods are fixedly sleeved with a transmission wheel at one end of the motor, a transmission belt is commonly sleeved between the two groups of transmission wheels, and a sliding frame 1 and a sliding frame 2 are commonly slidably connected between the two groups of spiral rods and located on both sides of the storage plate.

[0014] Furthermore, the top surface of the sliding frame is provided with a slot for several groups of cone rods to pass through, and the front and rear ends of the sliding frame away from the storage plate are fixedly installed with tooth plates, and the top surface of the sliding frame is fixedly installed with several groups of vertical plates at equal distances.

[0015] Furthermore, both sides of the front and rear ends of the screening frame are connected to the corresponding front and rear frames of the positioning frame through fixedly installed guide rods, and several groups of triangular convex strips are fixedly installed at equal distances on the top surface of the screening frame. A mesh is embedded in the top surface of the screening frame between two adjacent groups of triangular convex strips, and a tooth groove group is provided on the bottom surface of the screening frame at one end frame.

[0016] Furthermore, the multi-stage threshing mechanism includes a side baffle, which is fixedly installed at one end inside the positioning frame, and a slide groove is provided at the center of the side baffle. A side surface of the side baffle is located at the front and rear ends and is fixedly installed with a motor 2 through a machine base, and the output end of the motor 2 is provided with several groups of screw rods 2 fixedly installed at equal distances.

[0017] Furthermore, the external threads of the two adjacent groups of spiral rods are arranged in opposite directions, and the external sides of the two adjacent groups of spiral rods with opposite threads are commonly provided with a deseeding assembly, and each group of the deseeding assembly includes two groups of clamping frames, and the clamping frames are movably arranged on one side of the side baffle.

[0018] Furthermore, a spiral slider is fixedly installed at one end of the two groups of clamping frames close to the side baffle, one end of the spiral slider is sleeved on the outside of the corresponding spiral rod 2, and the other end is slidably connected to the inside of the corresponding slide groove, and transverse slices are fixedly installed at the centers of the opposite surfaces of the two groups of clamping frames. The front and rear groups of transverse slices are arranged in a conical structure at the opposite ends, and several groups of semicircular slices are fixedly installed at equal distances on the top surface of the front transverse slice and the bottom surface of the rear transverse slice.

[0019] Furthermore, the multi-stage threshing mechanism also includes a long sliding frame, which is fixedly installed inside the positioning frame between the rotating rod and the clamping frame. A cylinder is provided on the inner wall of the rear end of the long sliding frame, and the front end of the cylinder is fixedly connected to a double-sided rack through a push rod. The length of the double-sided rack is three-quarters of the internal length of the long sliding frame, and the top tooth block of the double-sided rack extends to the outside of the long sliding frame.

[0020] Furthermore, a toothed roller 1 is rotatably connected to the center of the bottom frame opening of the long sliding frame, and one end of the shaft of the toothed roller 1 extends to the outside of the long sliding frame and is fixedly installed with a toothed roller 2, which extends to engage with the tooth groove group on the bottom surface of the screening frame.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention effectively improves the threshing efficiency and threshing rate of corn cobs by setting a multi-stage threshing and clamping and conveying structure, realizes parallel multi-cob threshing by dynamically clamping multiple groups of corn cobs, and significantly improves the processing capacity of the harvester. At the same time, it also adopts a coordinated mode of axial rotation and transverse and longitudinal radial slicing, so that the corn kernels can be subjected to the force more comprehensively, realizes multi-directional composite threshing, and further improves the threshing effect.

[0023] The present invention also realizes the simultaneous completion of the secondary threshing and screening processes through an integrated sorting and discharging structure, effectively controls the mixing rate of broken cores, and improves the quality of corn harvest. During the threshing process, the multi-stage threshing mechanism can gradually separate the corn kernels from the corn cobs. At the same time, the clamping and conveying structure can maintain stable conveying of the corn cobs, avoiding problems such as uneven threshing caused by unstable conveying.

[0024] In summary, the machine has the advantages of high threshing efficiency, high threshing rate and good harvest quality, and is suitable for corn planting bases and farmlands of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2A three-dimensional schematic diagram of the combination of the positioning frame and its internal structure of the present invention;

[0028] Figure 3 It is a top view of the overall structure of the present invention before operation;

[0029] Figure 4 It is a top view of the overall structure of the present invention after operation;

[0030] Figure 5 This is a half-section schematic diagram of the positioning frame of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the partial combination of the positioning frame, the screening tube and the multi-stage separation mechanism of the present invention;

[0032] Figure 7 It is a schematic diagram of the partial structure of the seed removal component of the present invention.

[0033] In the figure: 1. outer frame; 2. positioning frame; 3. rotating rod; 301. reversing gear 1; 302. tapered rod; 303. reversing gear 2; 4. storage plate; 5. inserting and removing material mechanism; 51. screw rod 1; 52. motor 1; 53. transmission wheel; 54. sliding frame 1; 55. sliding frame 2; 56. tooth plate; 57. vertical plate; 6. multi-stage threshing mechanism; 61. side baffle; 62. motor 2; 63. screw rod 2; 64. seed removing assembly; 641. clamping frame; 642. spiral slider; 643. transverse slicing; 644. semicircular slicing; 65. long sliding frame; 66. cylinder; 67. double-sided rack; 68. tooth roller 1; 69. tooth roller 2; 7. screening frame; 701. triangular convex strip. DETAILED DESCRIPTION

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 3 As shown, a high-efficiency corn grain harvester with an arranged conveying structure includes an outer frame 1 and a positioning frame 2. A feeding chute is provided at one end of the top surface of the outer frame 1, and the positioning frame 2 is fixedly installed in the middle section of the inner portion of the outer frame 1. A rotating rod 3 is rotatably provided at the center of the inner portion of the positioning frame 2. A reversing gear 301 is fixedly sleeved on the outer portion of the rotating rod 3 at the front and rear sections.

[0036] A plurality of tapered rods 302 are rotatably connected to one side of the rotating rod 3 at equal intervals, and a second reversing gear 303 is fixedly sleeved on the outer side of the tapered rod 3 near the end of the rotating rod 3. A storage plate 4 is fixedly installed on one side of the rotating rod 3 inside the positioning frame 2, and a plurality of arc-shaped slots are equidistantly provided on the surface of the storage plate 4. A material insertion and removal mechanism 5 is provided on the outer side of the storage plate 4.

[0037] The inserting and removing mechanism 5 includes two sets of screw rods 51, which are respectively arranged at the front and rear ends of the storage plate 4, and one end of the screw rods 51 is rotatably connected to the inner wall of the corresponding positioning frame 2. One end of one set of screw rods 51 close to the inner wall of the storage plate 4 is provided with a motor 52, and the outside of the two sets of screw rods 51 is fixedly sleeved at the end of the motor 52.

[0038] A transmission belt is commonly sleeved between the two sets of transmission wheels 53. A slide frame 1 54 and a slide frame 2 55 are slidably connected between the two sets of spiral rods 1 51 and located on both sides of the storage plate 4. The top surface of the slide frame 1 54 is provided with a slot for the plurality of sets of tapered rods 302 to pass through. Tooth plates 56 are fixedly mounted on the front and rear ends of the side of the slide frame 1 54 away from the storage plate 4. Several sets of vertical plates 57 are fixedly mounted on the top surface of the slide frame 2 55 at equal distances.

[0039] First, several groups of corn cobs are thrown into the corresponding arc-shaped slots on the storage plate 4 through the feeding chute. By starting the motor 1 52, the corresponding screw rod 1 51 is driven to rotate. Due to the action of the transmission belt and the transmission wheel 53, the two groups of screw rods 1 51 can rotate simultaneously, driving the slide frame 1 54 and the slide frame 2 55 to move in the same direction.

[0040] When the spiral rod 1 51 rotates clockwise, the slide frame 1 54 continuously moves away from the end of the corn cob, and the slide frame 2 55 drives the plurality of vertical plates 57 to approach the corresponding ends of the corn cobs. The vertical plates 57 push the other ends of the corn cobs to insert into the corresponding ends of the tapered rods 302, thereby achieving the positioning of the plurality of corn cobs.

[0041] At the same time, the sliding frame 54 drives the tooth plate 56 to move synchronously. When the tooth plate 56 moves to mesh with the reversing gear 301, it drives the cone rod 302 to rotate, forcing several groups of cone rods 302 and the limited driven corn cobs to flip simultaneously until the corn cobs are flipped to the multi-stage threshing mechanism 6 for multi-layer threshing.

[0042] It is worth noting that after the threshing of multiple groups of corn cobs is completed, when the spiral 1 51 rotates counterclockwise, the slide frame 1 54 pulls the corresponding tooth plate 56 to reset. At this time, the tooth plate 56 engages with the reversing gear 1 301 again, forcing the cone rod 302 to flip in the opposite direction, forcing the threshed corn to flip back to its original position, and the slide frame 1 54 continues to move toward the end of the corn cob core, and passes through the cone rod 302 in turn and pushes the corresponding corn cob core to move until the corn cob is separated from the cone rod 302, thereby realizing the automatic shedding of the corn cob core, and the slide frame 2 55 drives several groups of vertical plates 57 to continuously move away from the end of the corn cob, reducing the obstruction to the discharge of the fallen corn cob;

[0043] This structure fully considers every link in the corn harvesting process, integrating the five processes of loading - positioning - turning - threshing - core cleaning into a single transmission system, realizing automated processing and greatly improving the efficiency and quality of corn harvesting.

[0044] Example 2: Please refer to Figure 2 — Figure 7 As shown, a multi-stage threshing mechanism 6 is provided inside the positioning frame 2 on the other side of the rotating rod 3. The multi-stage threshing mechanism 6 includes a side baffle 61, which is fixedly mounted at one end of the positioning frame 2, and a slide groove is provided at the center of the side baffle 61. A motor 2 62 is fixedly mounted on one side of the side baffle 61 at the front and rear ends through a machine base, and a plurality of groups of screw rods 2 63 are fixedly mounted at equal distances on the output end of the motor 2 62; the external threads of two adjacent groups of screw rods 2 63 are arranged in opposite directions, and a seed removing assembly 64 is commonly provided on the outside of the two adjacent groups of screw rods 2 63 with opposite thread arrangements;

[0045] Each set of seed threshing components 64 includes two sets of clamping frames 641, and the clamping frames 641 are movably arranged on one side of the side baffle 61. A spiral slider 642 is fixedly installed on one end of the two sets of clamping frames 641 close to the side baffle 61. One end of the spiral slider 642 is sleeved on the outside of the corresponding spiral rod 2 63, and the other end is slidably connected to the inside of the corresponding slide groove. A transverse slice 643 is fixedly installed at the center of the opposite surfaces of the two sets of clamping frames 641. The front and rear sets of transverse slices 643 are arranged in a conical structure at the opposite ends, so that the corn cob can be guided by the cone when threshing, thereby improving the uniformity of threshing. A plurality of sets of semicircular slices 644 are fixedly installed on the top surface of the front transverse slice 643 and the bottom surface of the rear transverse slice 643 at equal distances.

[0046] When the multi-stage threshing mechanism 6 is used to thresh corn cobs, each group of corn cobs is flipped and docked to each group of seed removal components 64, and is located between the front and rear groups of clamping frames 641. The motor 2 62 is started to drive several groups of screw rods 2 63 to rotate. Since the external threads of the two adjacent groups of screw rods 2 63 are in opposite directions, the spiral sliders 642 drive the corresponding clamping frames 641 to move relative to each other at the side baffle 61, forcing the front and rear groups of transverse slices 643 to simultaneously approach the front and rear ends of the same corn cob until the tips of the transverse slices 643 penetrate the transverse grain gaps of the corn cob, and each group of semicircular slices 644 is embedded in the longitudinal grain gaps, forming a grid-like segmentation basis that is staggered horizontally and vertically.

[0047] It is worth noting that the multi-stage threshing mechanism 6 also includes a long sliding frame 65, which is fixedly installed inside the positioning frame 2 between the rotating rod 3 and the clamping frame 641. A cylinder 66 is provided on the inner wall of the rear end of the long sliding frame 65, and the front end of the cylinder 66 is fixedly connected to a double-sided rack 67 through a push rod. The length of the double-sided rack 67 is three-quarters of the internal length of the long sliding frame 65, and the top surface tooth block of the double-sided rack 67 extends to the outside of the long sliding frame 65;

[0048] After each set of cone rods 302 is flipped, its corresponding reversing gear 2 303 is flipped to the top surface of the long sliding frame 65 and meshed with the top surface of the double-sided rack 67. Then, the cylinder 66 is started to use the push rod to pull the double-sided rack 67 to move back and forth, forcing the reversing gear 2 303, the cone rod 302 and the corn cob to rotate synchronously clockwise or counterclockwise; as the corn cob rotates, the transverse slices 643 produce relative movement shearing when the corn cob rotates. At the same time, several sets of semicircular slices 644 can radially divide the surface of the corn cob, forcing the binding force of the kernels to be reduced and threshing to be facilitated. The cross-sectional and longitudinal staggered divisions and the rotation of the corn cob force the corn kernels to fully fall off, effectively improving the threshing efficiency of the corn cob.

[0049] In this embodiment, the multi-stage threshing mechanism 6 is used to perform horizontal and vertical segmentation and threshing on the corn cobs, thereby forcing the corn to be threshed evenly and reducing the core breakage rate, thereby effectively improving the working efficiency of the corn harvester.

[0050] Example 3: Please refer to Figure 5 - Figure 6 As shown, a tooth roller 68 is rotatably connected to the center of the bottom frame opening of the long sliding frame 65, and one end of the shaft of the tooth roller 68 extends to the outside of the long sliding frame 65 and is fixedly installed with a tooth roller 2 69, and a screening frame 7 is provided at the bottom of the multi-stage threshing mechanism 6. Both sides of the front and rear ends of the screening frame 7 are connected to the front and rear frames of the corresponding positioning frame 2 through fixedly installed guide rods, and a plurality of groups of triangular convex strips 701 are fixedly installed at equal distances on the top surface of the screening frame 7. A mesh surface is embedded in the top surface of the screening frame 7 between two adjacent groups of triangular convex strips 701, and a tooth groove group is provided on the bottom surface of the screening frame 7 at one end frame. The tooth roller 2 69 extends to the tooth groove group on the bottom surface of the screening frame 7 and meshes.

[0051] This embodiment is used in conjunction with the first and second embodiments respectively, and realizes real-time screening of corn kernels and broken core particles while receiving the fallen corn through the mesh structure of the screening frame 7; at the same time, during the reciprocating movement of the double-sided rack 67, its bottom tooth block meshes with the tooth roller 1 68 to realize the synchronous rotation of the tooth roller 1 68 and the tooth roller 2 69, and then utilizes the meshing action of the tooth roller 2 69 and the tooth groove group on the bottom surface of the screening frame 7 to force the screening frame 7 to reciprocate inside the positioning frame 2 through the guide rod to further improve the screening effect, and at the same time, several groups of triangular convex strips 701 move synchronously with the screening frame 7, and the triangular convex strip array 701 of the screening frame 7 moves relative to the corn cob during the movement, and the design of the curvature radius of its tip can effectively scrape off the residual kernels, thereby effectively improving the threshing efficiency;

[0052] This composite design integrates the post-threshing processing steps (secondary threshing + particle size screening) into a single motion unit, effectively improving the working efficiency of the equipment.

[0053] Working principle:

[0054] When the present invention is in use, corn cobs are first fed into the harvester through the feeding chute, and the corn cobs are accurately placed in the arc-shaped slots of the storage plate 4. Then, the motor 1 52 is started to drive the spiral rod 1 51 to rotate. Through the linkage action of the transmission belt and the transmission wheel 53, the two sets of spiral rods 1 51 are forced to rotate synchronously, and the sliding frame 1 54 and the sliding frame 2 55 are driven to slide synchronously on both sides of the storage plate 4. When the spiral rod 1 51 rotates clockwise, the sliding frame 1 54 gradually moves away from one end of the corn cob, while the sliding frame 2 55 pushes the vertical plate 57 toward the other end of the corn cob. The thrust of the vertical plate 57 is used to insert the other end of the corn cob into the tapered rod 302, thereby realizing automatic positioning of the corn cob.

[0055] As the sliding frame 54 moves, the tooth plate 56 on its top surface engages with the reversing gear 301, thereby driving the cone rod 302 and the corn cob to flip until the corn cob is transferred to the multi-stage threshing mechanism 6 for threshing. The multi-stage threshing mechanism 6 drives the screw rod 63 to rotate through the motor 62, causing the clamping frame 641 to move relative to each other. The front and rear sets of transverse slices 643 clamp and cut the corn cob.

[0056] At the same time, the semicircular slices 644 are embedded in the longitudinal grain gaps of the corn cob, forming a grid-like segmentation. During the turning process of the cone rod 302, the reversing gear 303 engages with the double-sided rack 67, and the cylinder 66 is activated to push the double-sided rack 67 to move back and forth, driving the cone rod 302 and the corn cob to rotate synchronously. This rotation, combined with the shearing action of the transverse slices 643 and the semicircular slices 644, further improves the threshing effect.

[0057] The threshed corn kernels and broken core particles fall into the screening frame 7, and the screening frame 7 realizes real-time screening of the corn kernels and broken core particles through its mesh structure. At the same time, the bottom tooth block of the double-sided rack 67 engages with the tooth roller 1 68, driving the tooth roller 1 68 and the tooth roller 2 69 to rotate. The tooth roller 2 69 engages with the tooth groove group on the bottom surface of the screening frame 7, forcing the screening frame 7 to reciprocate inside the positioning frame 2 through the guide rod, further improving the screening effect. In addition, the triangular convex strips 701 on the screening frame 7 move synchronously with the screening frame 7, effectively scraping off residual grains, and further improving the threshing efficiency.

[0058] In summary, it is through a series of sophisticated mechanical structure designs that the automation of corn harvesting is achieved, greatly improving the efficiency and quality of corn harvesting.

[0059] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A corn high-efficiency grain harvester with an arrangement and conveying structure, comprising an outer frame (1) and a positioning frame (2), wherein a feeding trough is provided at one end of the top surface of the outer frame (1), and the positioning frame (2) is fixedly mounted at the middle section inside the outer frame (1), characterized in that: A rotating rod (3) is rotatably provided at the center of the positioning frame (2), a storage plate (4) is fixedly installed on one side of the rotating rod (3) inside the positioning frame (2), and a plurality of groups of arc-shaped slots are equidistantly provided on the surface of the storage plate (4), an inserting and removing mechanism (5) is provided on the outside of the storage plate (4), a multi-stage threshing mechanism (6) is provided on the other side of the rotating rod (3) inside the positioning frame (2), and a screening frame (7) is provided at the bottom of the multi-stage threshing mechanism (6); The outer portion of the rotating rod (3) is fixedly sleeved with a reversing gear 1 (301) at both the front and rear sections, and a side surface of the rotating rod (3) is rotatably connected to a plurality of groups of tapered rods (302) at equal distances, and the outer portion of the tapered rod (302) is fixedly sleeved with a reversing gear 2 (303) near the end of the rotating rod (3); The inserting and removing mechanism (5) includes two groups of screw rods (51), the two groups of screw rods (51) are respectively arranged at the front and rear ends of the storage plate (4), and one end of the screw rods (51) is rotatably connected to the inner wall of the corresponding positioning frame (2), and one end of one group of screw rods (51) close to the inner wall of the storage plate (4) is provided with a motor (52); The multi-stage threshing mechanism (6) includes a side baffle (61), the side baffle (61) is fixedly mounted at one end inside the positioning frame (2), and a slide groove is provided at the center of the side baffle (61), a motor 2 (62) is fixedly mounted on one side of the side baffle (61) at the front and rear ends through a machine base, and a plurality of sets of screw rods 2 (63) are fixedly mounted at equal distances on the output end of the motor 2 (62); The external threads of the two adjacent groups of spiral rods (63) are arranged in opposite directions, and the external parts of the two adjacent groups of spiral rods (63) with opposite thread arrangements are commonly provided with a deseeding assembly (64), each group of the deseeding assembly (64) includes two groups of clamping frames (641), and the clamping frames (641) are movably arranged on one side of the side baffle (61); The two groups of clamping frames (641) are fixedly installed with a spiral slider (642) at one end close to the side baffle (61), one end of the spiral slider (642) is sleeved on the outside of the corresponding spiral rod 2 (63), and the other end thereof is slidably connected to the inside of the corresponding slide groove. The centers of the opposite surfaces of the two groups of clamping frames (641) are fixedly installed with a transverse slice (643), and the front and rear groups of transverse slices (643) are arranged in a conical structure at the opposite ends. A plurality of groups of semicircular slices (644) are fixedly installed at equal distances on the top surface of the front transverse slice (643) and the bottom surface of the rear transverse slice (643).

2. The corn efficient grain harvester with an arrangement and conveying structure according to claim 1, characterized in that: The two sets of spiral rods (51) are fixedly sleeved with a transmission wheel (53) at the end of the motor (52) outside, and a transmission belt is sleeved between the two sets of transmission wheels (53). The two sets of spiral rods (51) are slidably connected to a sliding frame (54) and a sliding frame (55) at both sides of the storage plate (4).

3. The high-efficiency corn grain harvester with an arrangement and conveying structure according to claim 2, characterized in that: The top surface of the sliding frame 1 (54) is provided with a slot for a plurality of groups of cone rods (302) to pass through, and the front and rear ends of the side of the sliding frame 1 (54) away from the storage plate (4) are fixedly mounted with tooth plates (56), and the top surface of the sliding frame 2 (55) is fixedly mounted with a plurality of groups of vertical plates (57) at equal distances.

4. The corn efficient grain harvester with an arrangement and conveying structure according to claim 1, characterized in that: The front and rear ends of the screening frame (7) are both connected to the front and rear frames of the corresponding positioning frame (2) through fixed guide rods, and a plurality of groups of triangular convex strips (701) are fixedly installed at equal distances on the top surface of the screening frame (7). A mesh surface is embedded between two adjacent groups of triangular convex strips (701) on the top surface of the screening frame (7), and a tooth groove group is provided on the bottom surface of the screening frame (7) at one end frame.

5. The high-efficiency corn grain harvester with an arrangement and conveying structure according to claim 1, characterized in that: The multi-stage threshing mechanism (6) further comprises a long sliding frame (65), wherein the long sliding frame (65) is fixedly mounted inside the positioning frame (2) between the rotating rod (3) and the clamping frame (641), a cylinder (66) is provided on the inner wall of the rear end of the long sliding frame (65), and a double-sided rack (67) is fixedly connected to the front end of the cylinder (66) via a push rod, wherein the length of the double-sided rack (67) is three-quarters of the inner length of the long sliding frame (65), and the top surface tooth block of the double-sided rack (67) extends to the outside of the long sliding frame (65).

6. The high-efficiency corn grain harvester with an arrangement and conveying structure according to claim 5, characterized in that: A toothed roller 1 (68) is rotatably connected to the center of the bottom frame opening of the long sliding frame (65), and one end of the shaft of the toothed roller 1 (68) extends to the outside of the long sliding frame (65) and is fixedly installed with a toothed roller 2 (69), and the toothed roller 2 (69) extends to engage with the tooth groove group on the bottom surface of the screening frame (7).

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