A corn harvester threshing device capable of reducing the grain breakage rate

Abstract

The present invention relates to the technical field of corn threshing, and in particular to a corn harvester threshing device capable of reducing the seed breakage rate. It comprises a mounting frame, etc.; the mounting frame is connected to an external feeding device, and the feeding device has a discharge port. The present invention threshes the corn kernels by cutting the corn kernels with a cutting rope, and the stalk of the corn kernels can be separated from the main body during cutting, so that the corn kernels after threshing do not contain the stalk part, thereby solving the problem that the corn kernels with stalks affect the taste when eaten. At the same time, it avoids the problem of high seed breakage rate caused by traditional threshing methods such as impact or rubbing; and when performing the threshing operation, the electric push rod 1 drives the connecting block 1 and the cutting rope to move back and forth through the electric push rod 2, so that the cutting rope cuts the corn kernels in a mobile cutting manner, accelerates the threshing speed, and effectively avoids the corn kernels squeezing the cutting rope, resulting in the situation that the cutting rope is affected.

Description

Technical Field

[0001] The invention relates to the technical field of corn threshing, and in particular to a corn harvester threshing device capable of reducing a grain breakage rate. Background Art

[0002] When corn cobs enter the thresher for threshing, they are first hit by the high-speed rotating drum or plate teeth. This impact force can cause some corn kernels to be directly separated. At the same time, the corn kernels will generate strong friction with the drum or plate teeth, further threshing the corn kernels. During the above-mentioned threshing process, the bottom part of the corn kernels will be pulled out together through impact and friction. This part is usually called the hypocotyl or basal stalk, which is the part connecting the corn kernels to the corn cobs. The hard stalks at the bottom of the corn kernels may lead to increased corn breakage rate and impurity rate, thereby reducing the harvest quality. Broken kernels are more susceptible to mold and insect disease invasion, causing them to deteriorate and reduce the quality grade of corn, requiring subsequent processing of the corn kernels. Summary of the invention

[0003] In order to overcome the disadvantages that during the corn threshing operation, the stalk cannot be separated from the main body, which increases the impurity content and breakage rate, thereby reducing the quality grade of corn, reducing farmers' income, increasing screening and safe storage costs, and requiring subsequent processing of the corn kernels, the present invention provides a corn harvester threshing device that can reduce the kernel breakage rate.

[0004] Technical solution: A threshing device for a corn harvester that can reduce the grain breakage rate includes a mounting frame; the feature is that it also includes an arc-shaped supporting plate, an arc-shaped electric guide rail, a moving block, a driving mechanism, a cutting rope, a material discharge assembly and a material clamping assembly; the mounting frame is fixedly connected to the arc-shaped electric guide rail; the arc-shaped electric guide rail is slidably connected to two moving blocks; the mounting frame is slidably connected to two arc-shaped supporting plates, and each arc-shaped supporting plate is respectively connected to a moving block; the arc-shaped supporting plates are each provided with a plurality of discharge slots, and the mounting frame is connected to two driving mechanisms, the driving mechanisms are located on the sides of the arc-shaped supporting plates, and each driving mechanism is connected to a cutting rope, and the driving mechanism is used to drive the cutting rope to move and tighten the cutting rope, and the cutting rope is a thin metal rope; the mounting frame is connected to a material discharge assembly, and the material discharge assembly is located above the arc-shaped supporting plate, and a collecting bin with a screening function is provided below the two arc-shaped supporting plates; the mounting frame is connected to a material clamping assembly, and the corn cob is driven to rotate through the material clamping assembly.

[0005] In addition, it is particularly preferred that the arc-shaped supporting plate is made of silicone.

[0006] In addition, it is particularly preferred that the clamping assembly includes an electric push rod three, a connecting block two, a fixed drill bit and a rotating motor; an electric push rod three is fixedly connected to each side of the mounting frame; each telescopic part of each electric push rod three is fixedly connected to a connecting block two; each connecting block two is rotatably connected to a fixed drill bit; the fixed drill bit passes through the mounting frame; each connecting block two is fixedly connected to a rotating motor; the rotating shaft of each rotating motor is respectively fixedly connected to the corresponding fixed drill bit, and the electric push rod three and the rotating motor are respectively connected to an external power supply.

[0007] Furthermore, it is particularly preferred that the fixed drill bit is provided with a plurality of fixing grooves.

[0008] In addition, it is particularly preferred that it also includes an electric push rod four, a fixed plate and a cutting piece; each connecting frame one is fixedly connected to at least three electric push rods four; the telescopic parts of all electric push rods four on the same connecting frame one are commonly fixedly connected to the fixed plate; at least five cutting pieces are fixedly connected to the opposite sides of the two fixed plates; each cutting piece is provided with a limiting groove; the cutting rope is located in the corresponding limiting groove, and a pressure sensor is provided on the electric push rod four.

[0009] In addition, it is particularly preferred that the limiting groove is elliptical so that the cutting rope can slide in the limiting groove.

[0010] In addition, it is particularly preferred that it also includes a pneumatic multi-stage push rod, a connecting frame 2, a push block and a blocking block; two pneumatic multi-stage push rods are fixedly connected to each side of the mounting frame; the pneumatic multi-stage push rod is connected to an external air pump; each telescopic end of the pneumatic multi-stage push rod is fixedly connected to a connecting frame 2; each connecting frame 2 is fixedly connected to two push blocks distributed up and down; the left and right push blocks are alternately distributed between the two cutting pieces in the corresponding directions; each fixed plate is fixedly connected to a number of blocking blocks; the blocking blocks are distributed next to the cutting pieces.

[0011] Furthermore, it is particularly preferred that the stop block is provided with a recess.

[0012] In addition, it is particularly preferred that the push block and the stop block are made of rubber material.

[0013] In addition, it is particularly preferred that the discharge assembly includes an arc-shaped discharge plate and a DD motor; an arc-shaped discharge plate is rotatably connected to each of the two sides of the upper part of the mounting frame through a connecting plate; each connecting plate of the mounting frame is fixedly connected to a DD motor; the output parts of the DD motors are fixedly connected to the corresponding arc-shaped discharge plates; and the discharge port of the peeling mechanism is located in front of the arc-shaped discharge plate.

[0014] The beneficial effects of the present invention are: The present invention threshes corn kernels by cutting them with a cutting rope. The stalks of the corn kernels can be separated from the main body during cutting, so that the threshed corn kernels do not contain the stalks. This solves the problem that when the threshed corn kernels are used for food, the existing corn threshing operation cannot separate the stalks from the main body, which increases the impurity content and breakage rate, thereby reducing the quality grade of the corn, reducing farmers' income, increasing screening and safe storage costs, and requiring subsequent processing of the corn kernels.

[0015] During the threshing operation, the electric push rod 1 drives the connecting block 1 and the cutting rope to move back and forth through the electric push rod 2, so that the cutting rope cuts the corn kernels in a moving cutting manner, thereby accelerating the threshing speed.

[0016] The distance between the cutting piece and the corn is distributed according to the different sizes of the two ends of the corn, so that the cutting rope can fit the shape of the corn after being limited, and then cut off the corn kernels at the smaller end of the corn, avoiding the situation that some corn kernels cannot be cut off, thereby ensuring the threshing effect.

[0017] The cutting rope has a large extrusion force and is not easily driven away from the root of the corn kernels by the corn kernels. At the same time, the cutting piece limits the cutting rope to prevent the cutting rope from cutting off part of the corn cob machine and the fruit stalk.

[0018] The corn is caught by two arc-shaped supporting plates, and after being caught, the corn will gradually drop as the two arc-shaped supporting plates move, so that the corn is closer to the lower part of the two arc-shaped supporting plates. After the corn falls, the height difference between the corn and the lower part of the two arc-shaped supporting plates is smaller, thereby avoiding a large height difference, which causes the corn to fall and collide with the two arc-shaped supporting plates, causing the corn kernels to break, thereby reducing the corn kernel breakage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic structural diagram of a corn harvester threshing device capable of reducing the grain breakage rate; Figure 2 A structural cross-sectional view of a mounting frame disclosed in a corn harvester threshing device of the present invention that can reduce the grain breakage rate; Figure 3 A schematic structural diagram of a connecting frame 1, an electric push rod 2, a connecting block 1, a cutting rope, a cutting sheet, a pneumatic multi-stage push rod, a connecting frame 2 and a pushing block disclosed in a corn harvester threshing device capable of reducing the grain breakage rate of the present invention; Figure 4 A schematic structural diagram of a connecting frame 1, an electric push rod 1, an electric push rod 2, a connecting block 1, a cutting rope, an electric push rod 4, a fixing plate, a cutting sheet and a blocking block disclosed in a corn harvester threshing device capable of reducing a grain breakage rate of the present invention; Figure 5A schematic diagram of the structure of the electric push rod 3, the connecting block 2, the fixed drill bit and the rotating motor disclosed in the corn harvester threshing device capable of reducing the grain breakage rate of the present invention; Figure 6 The present invention is a structural cross-sectional view of an arc-shaped supporting plate and an arc-shaped discharge plate disclosed in a corn harvester threshing device capable of reducing the seed breakage rate.

[0020] In the figure: 1-mounting frame, 2-arc-shaped supporting plate, 3-arc-shaped electric guide rail, 4-moving block, 5-connecting frame 1, 6-electric push rod 1, 7-electric push rod 2, 8-connecting block 1, 9-cutting rope, 101-electric push rod 4, 102-fixed plate, 103-cutting piece, 111-electric push rod 3, 112-connecting block 2, 113-fixed drill bit, 114-rotating motor, 201-pneumatic multi-stage push rod, 202-connecting frame 2, 203-pushing block, 204-blocking block, 301-arc-shaped discharge plate, 302-DD motor, 2001-discharge trough, 10301-limiting slot, 11301-fixed slot, 20401-groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0022] A corn harvester threshing device capable of reducing the grain breakage rate, such as Figure 1-Figure 5 As shown, it includes a mounting frame 1; the mounting frame 1 is connected to an external feeding device; It also includes an arc-shaped support plate 2, an arc-shaped electric guide rail 3, a moving block 4, a driving mechanism, a cutting rope 9, a material discharge assembly and a material clamping assembly; the mounting frame 1 is fixedly connected to the arc-shaped electric guide rail 3; the arc-shaped electric guide rail 3 is slidably connected to two moving blocks 4; the mounting frame 1 is slidably connected to two arc-shaped support plates 2 distributed on the left and right, and each arc-shaped support plate 2 is respectively connected to a moving block 4; the arc-shaped support plates 2 are each provided with a plurality of discharge grooves 2001, and the mounting frame 1 is connected to two driving mechanisms, which are located on the side of the corresponding arc-shaped support plate 2, and each driving mechanism is connected to A cutting rope 9, a driving mechanism is used to drive the cutting rope 9 to move and tighten the cutting rope 9, the cutting rope 9 is a thin metal rope, not easy to deform, and easy to pass through the gaps between corn kernels; the mounting frame 1 is connected to a discharge assembly; the discharge assembly is located next to the discharge port of the peeling mechanism, the discharge assembly is located above the arc-shaped stripping plate 2, a collecting bin is provided under the two arc-shaped supporting plates 2, and the collecting channel of the storage bin has a screening function, through which the corn kernels and corn cobs are collected in different storage areas; the mounting frame 1 is connected to a clamping assembly, and the arc-shaped electric guide rail 3 is connected to an external power supply.

[0023] The arc-shaped supporting plate 2 is made of silica gel. When the corn rotates, the arc-shaped supporting plate 2 is squeezed to deform, thereby preventing the corn kernels from being squeezed and damaged during rotation, thereby reducing the breakage rate of the corn kernels.

[0024] The driving mechanism consists of a connecting frame 15, an electric push rod 16, an electric push rod 27 and a connecting block 18; a connecting frame 15 is fixedly connected to the left and right sides of the mounting frame 1; an electric push rod 16 is fixedly connected to the front and rear sides of each connecting frame 15; the telescopic parts of the two electric push rods 16 on the same connecting frame 15 face in opposite directions; each electric push rod 16 is fixedly connected to an electric push rod 27; each electric push rod 27 is fixedly connected to a connecting block 18; all the connecting blocks 18 on the same side are fixedly connected to a cutting rope 9; the electric push rod 16 and the electric push rod 27 are respectively connected to an external power supply.

[0025] The clamping assembly includes an electric push rod 3 111, a connecting block 2 112, a fixed drill bit 113 and a rotating motor 114; an electric push rod 3 111 is fixedly connected to the front and rear sides of the mounting frame 1; each telescopic part of the electric push rod 3 111 is fixedly connected to a connecting block 2 112; each connecting block 2 112 is rotatably connected to a fixed drill bit 113; the fixed drill bit 113 passes through the mounting frame 1; each connecting block 2 112 is fixedly connected to a rotating motor 114; the rotating shaft of each rotating motor 114 is respectively fixedly connected to the corresponding fixed drill bit 113, and the electric push rod 3 111 and the rotating motor 114 are respectively connected to an external power supply.

[0026] The fixed drill bit 113 is provided with a plurality of fixed grooves 11301, which increase the friction between the fixed drill bit 113 and the corn cob, thereby preventing the fixed drill bit 113 from being unable to drive the corn cob to rotate.

[0027] It also includes four electric push rods 101, a fixed plate 102 and a cutting piece 103; each connecting frame 15 is fixedly connected with three electric push rods 101; the telescopic parts of all the electric push rods 101 on the same connecting frame 5 are commonly fixedly connected with the fixed plate 102; five cutting pieces 103 are fixedly connected to the opposite sides of the two fixed plates 102; each cutting piece 103 is provided with a limiting groove 10301; the cutting rope 9 is located in the corresponding limiting groove 10301, and a pressure sensor is provided on the electric push rod 101, so as to control the moving distance of the cutting rope 9 and the cutting piece 103 according to the size of different corns.

[0028] The specific working steps are: The external feeding equipment conveys the peeled corn to the two arc-shaped supporting plates 2, and then the electric push rod three 111 drives the fixed drill bit 113 and the rotating motor 114 to move toward the corn through the connecting block two 112, so that the front and rear fixed drill bits 113 are respectively inserted into the front and rear of the corn. At the same time, the electric push rod two 7 drives the cutting rope 9 to move toward the corn through the connecting block one 8. The two connecting blocks one 8 will be located in front and rear of the corn respectively, and the cutting rope 9 will squeeze the corn kernels, thereby passing through the corn kernels and contacting the corn cobs. At this time, the cutting rope 9 will be located at the root of the corn kernels, and then the rotating motor 114 drives the corn to rotate through the fixed drill bit 113. At this time, the cutting rope 9 will block The corn kernels are blocked and the roots of the corn kernels are cut, and the corn kernels will be separated from the corn cobs. A cutting rope 9 is provided on the left and right sides of the corn, so that when the rotation angle of the corn is greater than 180 degrees, all the corn kernels can be cut off, and the threshing of the corn kernels is completed. The threshed corn kernels will fall through the discharge chute 2001, fall on the feed port of the collecting bin, and then enter the collecting bin. When the threshing work is completed, the fixed drill bit 113 moves away from the corn cob and returns to its original position. Since the fixed drill bit 113 penetrates the mounting frame 1, if the fixed drill bit 113 returns to its original position and drives the corn cob to move, the mounting frame 1 will block the corn cob, so that the corn cob is separated from the fixed drill bit 113. After that, the corn cob will fall on the arc-shaped supporting plate 2, and then the two arc-shaped electric guide rails 3 drive the moving blocks 4 connected thereto to move the arc-shaped supporting plates 2 connected thereto respectively, and the lower parts of the two arc-shaped supporting plates 2 will be in a moving state away from each other. Since the lower parts of the two arc-shaped supporting plates 2 are away from each other, the two arc-shaped supporting plates 2 will not be able to hold the corn cob, and the corn cob will fall to the feeding port of the collecting bin, and then through the screening mechanism of the collecting bin, the corn cob will fall into a collection area different from the corn kernels, and then the two arc-shaped supporting plates 2 will quickly move back to their original positions. Because during the threshing work, the peeling mechanism will discharge the peeled corn to the discharge component, so when the threshed corn cob falls To the collecting bin, and after the two arc-shaped supporting plates 2 quickly move back to their original positions, the discharging assembly lowers the corn onto the two arc-shaped supporting plates 2 for threshing, and this process is repeated until all the corn is threshed. The present invention threshes the corn kernels by cutting the corn kernels using a cutting rope 9. During cutting, the stalks of the corn kernels can be separated from the main body, so that the threshed corn kernels do not contain the stalks. This solves the problem that when the threshed corn kernels are used for food, the existing corn threshing operation cannot separate the stalks from the main body, the impurity content and the breakage rate are increased, thereby reducing the quality grade of the corn, reducing farmers' income, increasing screening and safe storage costs, and requiring subsequent processing of the corn kernels.

[0029] When the cutting rope 9 cuts the corn kernels, if the cutting only relies on the squeezing force exerted on the corn kernels when they move, the pressure exerted on the cutting rope 9 is too great, which affects its service life and the corn kernels cannot be cut quickly. Therefore, during the threshing operation, the electric push rod 1 6 drives the connecting block 1 8 and the cutting rope 9 to move back and forth through the electric push rod 2 7, so that the cutting rope 9 cuts the corn kernels in a moving cutting manner, thereby speeding up the threshing speed.

[0030] During the threshing operation, although the cutting rope 9 can be moved to perform a quick cutting operation, the corn kernels will still squeeze the cutting rope 9 when moving, so that the cutting rope 9 is squeezed away from the root of the corn kernels, and the corn kernels cut subsequently cannot be cut from the root, resulting in some corn kernels remaining on the corn cob. If the moving distance of the cutting rope 9 is too far, it will squeeze the corn cob and insert into the corn cob, which may easily cut off part of the corn cob during cutting, resulting in part of the corn cob being cut off together with the corn kernels, resulting in poor threshing effect. Therefore, when the cutting rope 9 moves, the electric push rod 101 pushes the fixed plate 102 to drive the cutting piece 103 to move synchronously, so that the cutting piece 103 moves to squeeze the corn kernels and insert into the corn cob. After the movement, the cutting rope 9 can continue to move, so that the squeezing force of the cutting rope 9 becomes larger, and because the cutting rope 9 is located in the limiting groove 10301, when the cutting rope 9 moves again, it will be blocked by the cutting piece 103 301, so that the cutting rope 9 limited by the limiting groove 10301 just fits the corn cob, and then in the subsequent cutting process, the cutting rope 9 can be limited by its own squeezing force, and it is not easily driven away from the root of the corn kernels by the corn kernels, and the cutting rope 9 can be limited by the cutting rope 9 to avoid cutting off part of the corn cob machine and fruit stalk, and the distance between the cutting piece 103 and the corn is distributed according to the different shapes of the two ends of the corn, so that the cutting rope 9 can fit the shape of the corn after being limited, and then cut off the corn kernels at the smaller end of the corn, to avoid the situation that some corn kernels cannot be cut off, thereby ensuring the threshing effect.

[0031] It should be noted that wet corn kernels have a certain degree of stickiness and are easily attached to the corn cob, so the corn cob can be controlled to rotate so that the cutting rope 9 can push away the attached corn kernels to avoid the corn kernels remaining on the corn cob. Example 2

[0032] On the basis of Example 1, Figure 2-Figure 3 and Figure 6As shown, the limiting groove 10301 is elliptical, allowing the cutting rope 9 to slide in the limiting groove 10301, so that the cutting rope 9 can move left and right in the limiting groove 10301, to avoid the cutting piece 103 moving and pulling the cutting rope 9 to be inserted into the corn cob, causing the cutting rope 9 to wear after the corn cob rotates.

[0033] It also includes a pneumatic multi-stage push rod 201, a connecting frame 202, a push block 203 and a blocking block 204; two pneumatic multi-stage push rods 201 are fixedly connected to the left and right sides of the mounting frame 1; the pneumatic multi-stage push rods 201 are connected to an external air pump; each telescopic end of the pneumatic multi-stage push rod 201 is fixedly connected to a connecting frame 202; each connecting frame 202 is fixedly connected to two push blocks 203 distributed up and down; the left and right push blocks 203 are alternately distributed between the two cutting pieces 103 in the corresponding directions; each fixed plate 102 is fixedly connected to a plurality of blocking blocks 204; the blocking blocks 204 are distributed beside the cutting pieces 103.

[0034] The blocking block 204 is provided with a groove 20401 to prevent the blocking block 204 from squeezing the cutting rope 9.

[0035] The pushing block 203 and the blocking block 204 are made of rubber to prevent the corn from being crushed when the pushing block 203 squeezes the corn and the blocking block 204 blocks the corn.

[0036] The discharge assembly includes an arc-shaped discharge plate 301 and a DD motor 302; an arc-shaped discharge plate 301 is rotatably connected to the upper left and upper right sides of the mounting frame 1 through a connecting plate; each connecting plate of the mounting frame 1 is fixedly connected to a DD motor 302; the output parts of the DD motors 302 are fixedly connected to the corresponding arc-shaped discharge plates 301; the discharge port of the peeling mechanism is located in front of the arc-shaped discharge plate 301.

[0037] The specific working steps are: After the corn kernels are threshed, the cutting piece 103 is moved toward the corn cob again, and the limiting groove 10301 is elliptical, and the cutting rope 9 will not be moved by the cutting piece 103, and at this time the cutting rope 9 will move back a short distance and will not contact the corn cob to ensure the cleaning effect. After the movement, the cutting piece 103 will go deeper into the corn cob, so that the cutting piece 103 cuts the corn cob, but the cutting piece 103 does not penetrate into the center point of the corn cob, so that the corn cob can continue to rotate, and the corn cob is not directly cut off by the cutting piece 103, because there is no support and so it cannot be achieved. When the corn cob has finished rotating, the pneumatic multi-stage push rod 201 The pushing block 203 is driven to move continuously toward the corn cob through the connecting frame 202. When the pushing block 203 moves and contacts the corn cob, the electric push rod 4 101 drives the cutting piece 103 to reset through the fixed plate 102. At this time, since the pushing block 203 continues to move toward the corn cob, the pushing block 203 will squeeze the corn cob. The corn cob is squeezed by multiple pushing blocks 203, and the adjacent pushing blocks 203 have opposite squeezing directions. The diameter of the area of ​​the corn cob cut by the pushing block 203 becomes smaller. At this time, the corn cob is squeezed, the cut area will be disconnected, and the corn cob will be broken into multiple sections. After the corn cob is divided, it is convenient for drying and crushing during subsequent recycling.

[0038] It should be noted that when the push block 203 contacts the corn cob again, the fixed drill bit 113 will quickly return to its original position and separate from the corn cob, and at this time the blocking block 204 contacts the corn cob, so that the blocking block 204 cooperates with the push block 203 to clamp the corn cob to prevent the corn cob from falling, and the blocking block 204 moves synchronously with the cutting piece 103 to prevent the push block 203 from being blocked by the blocking block 204 when squeezing the corn cob.

[0039] The peripheral feeding device discharges the corn from the discharge port to the two arc-shaped discharge plates 301. When threshing operation is required, the DD motor 302 drives the arc-shaped discharge plates 301 to rotate, so that the lower parts of the two arc-shaped discharge plates 301 move away from each other. At this time, the corn will fall on the two arc-shaped support plates 2; at this time, the two arc-shaped support plates 2 are just in a state of moving, and the upper parts of the two arc-shaped support plates 2 will catch the falling corn. Figure 6The state shown, and then the two arc-shaped supporting plates 2 move back, and the upper horizontal position of the two arc-shaped supporting plates 2 during movement will gradually decrease, thereby driving the corn to gradually decrease, and when the upper parts of the two arc-shaped supporting plates 2 move to the point where they cannot catch the corn, the corn will fall and be caught by the lower parts of the two arc-shaped supporting plates 2, thereby completing the discharge work. When the corn falls, it is caught by the two arc-shaped supporting plates 2, and after catching the corn, as the two arc-shaped supporting plates 2 move, the corn will gradually decrease, making the corn closer to the lower parts of the two arc-shaped supporting plates 2. After the corn falls, the drop between the corn and the lower parts of the two arc-shaped supporting plates 2 is smaller, avoiding a large drop, resulting in the corn falling and colliding with the two arc-shaped supporting plates 2, resulting in the corn kernels being broken, thereby reducing the corn kernel breakage rate, and the two arc-shaped supporting plates 2 are made of silica gel, which can further reduce the impact force after the corn falls.

[0040] It should be noted that the sizes of the corns to be processed are not too different, so that when the fixed drill bit 113 is inserted into the corn cob, the difference from the center point of the corn cob is not too large, thereby ensuring that the threshing work proceeds normally.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corn harvester threshing device capable of reducing the grain breakage rate, comprising a mounting frame (1); wherein: The invention also comprises an arc-shaped support plate (2), an arc-shaped electric guide rail (3), a moving block (4), a driving mechanism, a cutting rope (9), a material discharge assembly and a material clamping assembly; the mounting frame (1) is fixedly connected with the arc-shaped electric guide rail (3); the arc-shaped electric guide rail (3) is slidably connected with two moving blocks (4); the mounting frame (1) is slidably connected with two arc-shaped support plates (2), each arc-shaped support plate (2) is respectively connected with a moving block (4); the arc-shaped support plates (2) are each provided with a plurality of material discharge grooves (2001); the mounting frame (1) is connected with Two driving mechanisms are connected, the driving mechanisms are located at the side of the corresponding arc-shaped support plates (2), each driving mechanism is connected to a cutting rope (9), the driving mechanism is used to drive the cutting rope (9) to move and tighten the cutting rope (9), and the cutting rope (9) is a thin metal rope; the mounting frame (1) is connected to a discharge assembly, the discharge assembly is located above the arc-shaped support plates (2), and a collecting bin with a screening function is provided below the two arc-shaped support plates (2); the mounting frame (1) is connected to a clamping assembly, and the corn cobs are driven to rotate through the clamping assembly.

2. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 1, characterized in that: The arc-shaped support plate (2) is made of silicone.

3. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 1, characterized in that: The material clamping assembly comprises an electric push rod three (111), a connecting block two (112), a fixed drill bit (113) and a rotating motor (114); one electric push rod three (111) is fixedly connected to each side of the mounting frame (1); each telescopic portion of the electric push rod three (111) is fixedly connected to a connecting block two (112); each connecting block two (112) is rotatably connected to a fixed drill bit (113); the fixed drill bit (113) passes through the mounting frame (1); each connecting block two (112) is fixedly connected to a rotating motor (114); the rotating shaft of each rotating motor (114) is respectively fixedly connected to the corresponding fixed drill bit (113); the electric push rod three (111) and the rotating motor (114) are respectively connected to an external power supply.

4. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 3, characterized in that: The fixed drill bit (113) is provided with a plurality of fixing grooves (11301).

5. A corn harvester threshing device capable of reducing the grain breakage rate according to any one of claims 1 to 4, characterized in that: It also includes electric push rods (101), a fixed plate (102) and a cutting piece (103); each connecting frame (5) is fixedly connected to at least three electric push rods (101); the telescopic parts of all the electric push rods (101) on the same connecting frame (5) are fixedly connected to the fixed plate (102); at least five cutting pieces (103) are fixedly connected to the opposite sides of the two fixed plates (102); each cutting piece (103) is provided with a limiting groove (10301); the cutting rope (9) is located in the corresponding limiting groove (10301), and a pressure sensor is provided on the electric push rod (101).

6. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 5, characterized in that: The limiting groove (10301) is elliptical in shape, allowing the cutting rope (9) to slide in the limiting groove (10301).

7. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 5, characterized in that: It also includes a pneumatic multi-stage push rod (201), a second connecting frame (202), a push block (203) and a blocking block (204); two pneumatic multi-stage push rods (201) are fixedly connected to both sides of the mounting frame (1); the pneumatic multi-stage push rods (201) are connected to an external air pump; each telescopic end of each pneumatic multi-stage push rod (201) is fixedly connected to a second connecting frame (202); each second connecting frame (202) is fixedly connected to two push blocks (203) distributed up and down; the left and right push blocks (203) are alternately distributed between two cutting pieces (103) in corresponding directions; each fixed plate (102) is fixedly connected to a plurality of blocking blocks (204); the blocking blocks (204) are distributed beside the cutting pieces (103).

8. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 7, characterized in that: The blocking block (204) is provided with a groove (20401).

9. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 7, characterized in that: The pushing block (203) and the blocking block (204) are made of rubber.

10. A corn harvester threshing device capable of reducing the grain breakage rate according to claim 1, characterized in that: The material discharge assembly comprises an arc-shaped material discharge plate (301) and a DD motor (302); the upper two sides of the mounting frame (1) are rotatably connected to an arc-shaped material discharge plate (301) via a connecting plate; each connecting plate of the mounting frame (1) is fixedly connected to a DD motor (302); the output parts of the DD motors (302) are fixedly connected to corresponding arc-shaped material discharge plates (301); and the material discharge port of the peeling mechanism is located in front of the arc-shaped material discharge plate (301).

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