Corn kernel harvester capable of automatically recycling corncobs

Abstract

The invention discloses a corn kernel harvester capable of automatically recycling corncobs, and relates to the technical field of agriculture, the corn kernel harvester comprises a corn harvester main body, a threshing mechanism is arranged on the corn harvester main body, the corn kernel harvester further comprises a transmission rack, a plurality of transmission wheels which are rotatably connected are arranged in the transmission rack and located below the threshing mechanism, and the transmission wheels are connected with the transmission rack. A transmission belt main body is wound on the transmission wheels, and a height difference exists between at least two upper transmission wheels, so that the transmission belt main body has a gradient at the position; the limiting parts are arranged in the conveying direction of the conveying belt body. According to the corn thresher, corncobs mixed with corn kernels in the threshing mechanism fall onto the limiting parts from the outlet, the transmission wheel rotates to drive the transmission belt body to move circularly, the corncobs and the corn kernels fall onto the inclined plane, and the corn kernels fall onto the limiting parts, fall onto the transmission belt body through gaps among the multiple limiting parts and roll downwards; and the corncob is driven by the limiting part to move upwards, so that the corn kernels are separated from the corncob.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, in particular to a corn grain harvester capable of automatically recovering corn cobs. Background Art

[0002] In large-scale corn planting, each link of the traditional harvesting method is relatively independent, such as manual ear picking, transportation, and threshing, which is time-consuming and inefficient. The corn grain harvester can complete multiple operations such as harvesting, threshing, and cleaning at one time, greatly shortening the harvesting cycle and improving the overall efficiency of agricultural production. It enables farmers to complete corn harvesting within the best farming time and gain more time for planting the next crop.

[0003] The threshing mechanism mostly adopts the impact threshing principle, which applies impact force to the corn cob through the high-speed rotating drum, so that the corn kernels fall off the corn cob, and then the corn cob continues to be transported to the outlet of the threshing mechanism. Since the threshing mechanism itself will produce certain mechanical vibrations and bumps, in the process of corn cobs being transported from the outlet of the threshing mechanism to the storage place, this mechanical vibration and bumps will cause the corn cobs to collide and rub against each other, and then the corn kernels that have fallen off will be mixed between multiple corn cobs; The flow of corn in the threshing mechanism is not absolutely uniform, and local accumulation or poor flow may occur. As a result, some corn cobs and corn kernels stay in a specific area for too long, increasing the chances of them contacting and mixing with each other, making it impossible for some corn kernels to separate from a pile of corn cobs in time, and ultimately causing the corn kernels to be transported to the place where the corn cobs are stored along with the corn cobs. When corn cobs mixed with corn kernels are stored, the presence of corn kernels will increase the complexity of the humidity and temperature changes of the corn cobs, making it easy to cause mildew, insect pests and other problems. Summary of the invention

[0004] The object of the present invention is to provide a corn grain harvester which can automatically recycle corn cobs, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides a corn grain harvester for automatically recovering corn cobs, comprising a corn harvester body, a threshing mechanism being arranged on the corn harvester body, and a transmission frame being arranged below the threshing mechanism, wherein a plurality of rotatably connected transmission wheels are arranged in the transmission frame, a transmission belt body is wound around the transmission wheels, and at least two transmission wheels located at the upper part have a height difference, so that the transmission belt body has a slope at the position; A plurality of limiting parts are arranged at intervals on the outer surface of the transmission belt body along the conveying direction of the transmission belt body. There is a distance between the front and rear ends of the limiting parts and the outer surface of the transmission belt body to form an opening for separating corn cobs and corn seeds.

[0006] Furthermore, multiple limiting parts are arranged at equal intervals on the transmission belt body, and the opening between the front end of each limiting part and the outer surface of the transmission belt body is larger than the opening between the rear end of the limiting part and the outer surface of the transmission belt body, so that a limiting area is formed between the front and rear ends of two adjacent limiting parts for separating corn cobs and corn seeds.

[0007] Furthermore, the front end of the limiting part is provided with an arc-shaped convex part, and the rear end of the limiting part is provided with a concave part matching the shape of the convex part. The convex parts and concave parts on two adjacent limiting parts overlap to form the limiting area between the convex parts and the concave parts.

[0008] Furthermore, a plurality of transmission members are arranged on the transmission frame and arranged along the periphery of the transmission belt body, and the transmission members include at least two groups of transmission rollers, one end of which is rotatably connected to the transmission frame, and each group of transmission rollers has a plurality of transmission rollers, and the transmission rollers are in close contact with the outer wall of the transmission belt body; Each group of transmission rollers is connected with a belt for transmission, and a plurality of limiting parts are located between two of the belts, and the inner wall of the belt is in close contact with the outer wall of the transmission roller.

[0009] Further, the transmission belt body is divided into a first transmission belt, a second transmission belt, a third transmission belt and a fourth transmission belt through a plurality of transmission wheels, and the first transmission belt, the second transmission belt, the fourth transmission belt and the third transmission belt are connected end to end in sequence to form a complete transmission belt body, wherein the first transmission belt is arranged in an inclined shape, and the transmission elements partially located in the first transmission belt are grouped in pairs, and the spacing between each group is the same, and the two transmission elements in each group are close to each other; One of the transmission members in each group is connected to two second elliptical blocks, and the other transmission member is connected to a first elliptical block, wherein the first elliptical block corresponds to the outer arc end of the limiting portion, and the two second elliptical blocks correspond to the two edges of the inner arc of the limiting portion respectively; Two ribs are installed on the outer wall of the transmission belt body. The ribs are located at the edge of the transmission belt body, and the transmission member is located between the ribs and the belt.

[0010] Furthermore, a plurality of rotating rods are connected between the two belts, the limiting portion is rotatably connected to the outer wall of the rotating rod, the two outer side walls of the limiting portion are both against the outer wall of the belt, a plurality of mounting plates are installed on the outer wall of the belt, the mounting plates are located below the limiting portion and between the two belts, and a spring is connected between the top of the mounting plate and the bottom of the limiting portion.

[0011] Furthermore, the transmission member further comprises a mounting rod connected between the two transmission rollers, and the first elliptical block and the second elliptical block are both connected to the outer wall of the mounting rod; The transmission roller is located between the rib and the belt, the inner wall of the belt is in close contact with the outer wall of the transmission roller, and the outer wall of the rib is in close contact with the outer wall of the transmission roller.

[0012] Further, the inner wall of the transmission frame is provided with two receiving grooves, the two receiving grooves correspond to each other, the two ends of the transmission wheel are rotatably connected to the inner walls of the two receiving grooves respectively, one end of the transmission roller is rotatably connected to the inner wall of the receiving groove, and the belt and the rib are both located inside the receiving groove; The two driving parts are arranged on one side of the transmission frame, and at least include a transmission rod connected to one end of the transmission wheel. One end of the transmission rod penetrates the transmission frame and extends to the outside of the transmission frame, and is rotatably connected to the transmission frame to drive the transmission wheel to rotate when rotating.

[0013] Furthermore, the driving unit also includes two stepper motors, which are installed inside the corn harvester body, and the driving end of the stepper motor is connected to the end of the transmission rod away from the transmission wheel. The outer wall of the transmission rod is rotatably connected to the inner wall of the transmission frame, and the outer side wall of the transmission frame is connected to the inner wall of the corn harvester body, and the transmission frame is fixed inside the corn harvester body.

[0014] Furthermore, a collecting cover is installed on the outer wall of the threshing mechanism, a connecting rod is arranged inside the collecting cover, a plurality of stirring rods are installed on the outer wall of the connecting rod, a servo motor is arranged below the connecting rod, a driving end of the servo motor is connected to the bottom end of the connecting rod, and a first fixing block is rotatably connected to the outer wall of the connecting rod; Two first fixing rods are installed on the outer wall of the first fixing block, and one end of the two first fixing rods away from the first fixing block is connected to the outer wall of the threshing mechanism; a second fixing block is installed on the outer wall of the servo motor, and two second fixing rods are installed on the outer wall of the second fixing block, and one end of the two second fixing rods away from the second fixing block is connected to the outer wall of the transmission frame; A corn cob accommodating chamber and a corn kernel accommodating chamber are provided in the main body of the corn harvester. The third transmission belt is located above the corn kernel accommodating chamber and corresponds to the interior of the corn kernel accommodating chamber. The second transmission belt is located above the corn cob accommodating chamber and corresponds to the interior of the corn cob accommodating chamber.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the corn cob mixed with corn kernels in the threshing mechanism falls from the outlet to the limiting part, the transmission wheel rotates to drive the transmission belt body to move circularly, the corn cob and the corn kernels fall onto the inclined surface, the corn kernels fall onto the limiting part and fall to the transmission belt body through the gaps between the plurality of limiting parts and roll downward, and the corn cob is driven by the limiting part to move upward, thereby achieving separation of the corn kernels and the corn cob.

[0016] 2. In the present invention, the distance between the front end of the limiting part and the outer surface of the transmission belt body is higher than the distance between the rear end. The front end of each limiting part is higher than the surface of the front limiting part. When corn falls on the limiting part, it will be supported by the protruding front end of the rear limiting part to prevent the corn cob from sliding down. When the corn kernels fall on the surface of the limiting part, they can roll down along the inclined surface and finally roll down from the gap onto the transmission belt body.

[0017] 3. In the present invention, the convex part is the outer arc end of the limiting part, and the concave part is the inner arc end. The outer arc ends of the front ends of the plurality of limiting parts are inclined upward. When the transmission belt body moves obliquely upward, the corn cobs and corn kernels falling from the outlet fall on the limiting part. The smooth surface of the limiting part is conducive to the corn kernels rolling to the transmission belt body and falling quickly. The corn cob cannot pass through the gap of the limiting part and will be supported by the outer arc end at the rear. Since the contact end is an arc surface, the corn cob can be prevented from blocking the gap, and the gap can be exposed regardless of the corn cob being horizontal or vertical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the connection structure between the threshing mechanism and the outlet in the present invention; Figure 4 It is a schematic diagram of the connection structure between the connecting rod and the servo motor in the present invention; Figure 5 It is a schematic diagram of the connection structure between the transmission frame and the stepping motor in the present invention; Figure 6 It is a schematic diagram of the connection structure between the transmission wheel and the transmission rod in the present invention; Figure 7 It is a schematic diagram of the connection structure between the transmission frame and the containing slot in the present invention; Figure 8 It is a schematic diagram of the connection structure between the transmission belt body and the rib in the present invention; Fig. 9 It is a schematic diagram of the connection structure between the transmission roller and the mounting rod in the present invention; Fig.10 It is a schematic diagram of the connection structure between the mounting rod and the second elliptical block in the present invention; Fig.11 It is a schematic diagram of the connection structure between the limiting part and the rotating rod in the present invention; Fig.12 It is a schematic diagram of the connection structure between the transmission belt body and the support plate in the present invention; Fig.13 It is a side view schematic diagram of the limiting part in the present invention; Fig.14 It is a display diagram of the limiting part in the present invention; Fig.15It is a top view schematic diagram of the limiting part in the present invention; Fig.16 for Fig.11 A magnified view of the structure at center.

[0019] In the figure: 1. The main body of the corn harvester; 2. Corn cob accommodating chamber; 3. Corn kernel accommodating chamber; 4. Transmission frame; 5. Threshing mechanism; 6. Exit; 7. Collecting cover; 8. Transmission wheel; 9. Transmission belt body; 901. First transmission belt; 902. Second transmission belt; 903. Third transmission belt; 904. Fourth transmission belt; 10. Belt; 11. Limiting part; 12. Transmission roller; 13. Stirring rod; 14. First fixed rod; 15. First fixed block; 16. Connecting rod; 17. Second fixed rod; 18. Servo motor; 19. Second fixed block; 20. Stepping motor; 21. Transmission rod; 22. Accommodating groove; 23. Retaining edge; 24. Mounting rod; 25. First elliptical block; 26. Second elliptical block; 27. Rotating rod; 28. Mounting plate; 29. ​​Spring; 30. Support plate. DETAILED DESCRIPTION

[0020] 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.

[0021] The present invention provides a technical solution: See also Figure 1-Figure 16 As shown, a corn grain harvester for automatically recovering corn cobs includes a corn harvester body 1, a threshing mechanism 5 is arranged on the corn harvester body 1, and a transmission frame 4 is located below the threshing mechanism 5, a plurality of rotatably connected transmission wheels 8 are arranged on the transmission frame 4, a transmission belt body 9 is wound around the transmission wheels 8, and at least two transmission wheels 8 located at the upper part have a height difference, so that the transmission belt body 9 has a slope at this position; Multiple limiting parts 11 are arranged at intervals on the outer surface of the transmission belt body 9 along the conveying direction of the transmission belt body 9. There is a distance between the front and rear ends of the limiting parts 11 and the outer surface of the transmission belt body 9 to form an opening for separating corn cobs and corn seeds; the threshing mechanism 5 is fixed inside the corn harvester body 1.

[0022] The corn cobs mixed with corn kernels in the threshing mechanism 5 fall from the outlet 6 to the limiting portion 11, the inclined surface of the transmission belt body 9 corresponds to the outlet 6, the transmission frame 4 is fixed inside the corn harvester body 1, the outer wall of the transmission frame 4 is fixedly connected to the inner wall of the corn harvester body 1, the two transmission frames 4 are separated and have a gap, the outlet 6 corresponds to the middle of the gap, the transmission belt body 9 is located in the gap between the two transmission frames 4, one end of the transmission wheel 8 is rotatably connected to one of the transmission frames 4, and the other end is rotatably connected to the other transmission frame 4, the transmission wheel 8 can rotate clockwise or counterclockwise, and the transmission belt body 9 is transmission-connected to the four transmission wheels 8, so the transmission wheel 8 can also drive the transmission belt body 9 to move cyclically while rotating; like Figure 7 As shown in FIG. 1 , the transmission frame 4 has four corners, and the four transmission wheels 8 are respectively located in the area near the corners of the transmission frame 4, so that the transmission belt body 9 is surrounded by the same shape as the transmission frame 4, and one surface of the transmission belt body 9 is an inclined surface. Figure 7 From the perspective of FIG, when the transmission wheel 8 rotates counterclockwise, the transmission belt body 9 will move cyclically to the left, that is, the transmission belt body 9 continues to move toward the top of the inclined surface. During the process of the transmission belt body 9 moving cyclically to the left, the plurality of limiting parts 11 will be driven to move cyclically to the left, that is, in the direction above the inclined surface. At this time, when the corn cobs and corn kernels fall onto the limiting parts 11, the corn kernels will roll from the gaps between the plurality of limiting parts 11 onto the transmission belt body 9, and then roll downward along the inclined surface of the transmission belt body 9. The gaps between the plurality of limiting parts 11 can only allow corn kernels to pass through, while the corn cobs cannot pass through the gaps and fall onto the transmission belt body 9. After the corn cobs fall onto the limiting parts 11, they will be caught by the gaps between the plurality of limiting parts 11, preventing the corn cobs from sliding down along the inclined slope. Then, the limiting parts 11 drive the corn cobs to be transported toward the upper side of the inclined surface, while the corn kernels roll down to the lower side of the inclined surface, thereby achieving separation of the corn kernels and the corn cobs. The transmission frame 4 acts as a barrier on both sides to prevent corn kernels or corn cobs from splashing out; like Fig.12 In the middle of the transmission frame 4, four support plates 30 are fixedly connected. The four support plates 30 have the same width but different lengths, and are used to adapt to the different lengths of the four sides of the transmission belt body 9. The support plates 30 abut against the inner wall of the transmission belt body 9 to support the transmission belt body 9. Since the transmission wheel 8 supports and maintains the shape of the transmission belt body 9, in the area close to the transmission wheel 8, the transmission belt body 9 is supported by the transmission wheel 8 and can maintain a relatively stable shape and tension distribution, while the area far away from the transmission wheel 8 lacks such direct support and only relies on the tension of the transmission belt itself to maintain its shape, which is relatively more likely to deform and collapse under the action of external forces such as gravity. Therefore, the support plate 30 is used to support the transmission belt body 9 to prevent it from collapsing, so that the transmission belt body 9 can continue to contact with the transmission member; For example Figure 5 In the figure, a blocking plate is fixedly installed on the inner wall of 4, located at the lower right side, for preventing the corn cob from rolling down the inclined surface quickly. The bottom of the blocking plate is close to the surface of the limiting portion 11, so the corn cob cannot easily pass through the gap between the limiting portion 11 and the group partition plate. Since the blocking plate is above the limiting portion 11, it will not hinder the corn kernels from passing through.

[0023] See also Figure 3-Figure 14 A plurality of limiting portions 11 are arranged at equal intervals on the transmission belt body 9, and an opening between the front end of each limiting portion 11 and the outer surface of the transmission belt body 9 is larger than an opening between the rear end of the limiting portion 11 and the outer surface of the transmission belt body 9, so that a limiting area is formed between the front and rear ends of two adjacent limiting portions 11 for separating corn cobs and corn seeds.

[0024] The distance between the front end of the limiting portion 11 and the outer surface of the belt body 9 is relatively high, while the distance between the rear end of the limiting portion 11 and the belt body 9 is slightly lower than the distance between the front end and the belt body 9. Fig.13 As shown in the figure, the front end of each limiting portion 11 is higher than the surface of the front limiting portion 11. When the corn falls on the limiting portion 11, it will be supported by the protruding front end of the rear limiting portion 11 to prevent the corn cob from sliding down along the inclined slope. When the corn kernels fall on the surface of the limiting portion 11, they will still roll down along the inclined surface of the limiting portion 11, and the corn kernels will roll down from the gaps between the multiple limiting portions 11 onto the transmission belt body 9.

[0025] See also Figure 3-Figure 15 The front end of the limiting portion 11 is provided with an arc-shaped convex portion, and the rear end of the limiting portion 11 is provided with a concave portion matching the shape of the convex portion. The convex portions and concave portions on two adjacent limiting portions 11 overlap to form a limiting area between the convex portions and the concave portions.

[0026] The convex part is the outer arc end of the limiting part 11, and the concave part is the inner arc end of the limiting part 11. The outer arc ends of the front ends of the plurality of limiting parts 11 are all inclined upward, so the outer arc end of the front end of each limiting part 11 is higher than the surface of the front limiting part 11. Therefore, when the transmission belt body 9 circulates in the direction above the inclined surface, the corn cobs and corn kernels falling from the outlet 6 will fall onto the limiting part 11. The surface of the limiting part 11 is smooth, so when the corn kernels fall on the surface of the limiting part 11, they will still roll down along the inclined surface of the limiting part 11. The corn kernels roll down from the gaps between the plurality of limiting parts 11 onto the transmission belt body 9, and then roll down along the inclined surface of the transmission belt body 9. Since the transmission belt body 9 is transmitting toward the bottom of the inclined surface at this time, the corn kernels can be driven to fall quickly to avoid accumulation. The gaps between the multiple limiting parts 11 can only allow corn kernels to pass through, while the corn cobs cannot pass through the gaps and fall onto the transmission belt body 9. After the corn cobs fall onto the limiting parts 11, they will be supported by the raised outer arc end of the limiting parts 11 at the rear to prevent the corn cobs from sliding down along the inclined slope. The end of the limiting part 11 that supports the corn cob is an arc-shaped surface, which has the advantage that multiple corn cobs will not be easily arranged in a row to block all the gaps, especially when the corn cobs are horizontal in the gaps. The horizontal corn cobs will block the gaps and prevent the corn kernels from passing through the gaps, but the end of the limiting part 11 that contacts the corn cob is an arc-shaped surface. Fig.14 Indicated in Fig.14 The cylindrical object in the figure is a corn cob. When the corn cob contacts the arc-shaped end of the limiting portion 11, the gap can be exposed regardless of whether the corn cob is horizontally or vertically.

[0027] See also Figure 6-Figure 16 , a plurality of transmission members are arranged on the transmission frame 4 along the periphery of the transmission belt body 9, and the transmission members include at least two groups of transmission rollers 12, one end of which is rotatably connected to the transmission frame 4, and each group of transmission rollers 12 has a plurality of transmission rollers 12, and the transmission rollers 12 are in close contact with the outer wall of the transmission belt body 9; Each set of driving rollers 12 is drivingly connected to a belt 10 , and a plurality of limiting portions 11 are located between two belts 10 . The inner wall of the belt 10 is in close contact with the outer wall of the driving roller 12 .

[0028] When the transmission belt body 9 moves in a circular motion, it drives the transmission roller 12 to rotate, and then drives the belt 10 to move in a circular motion in the opposite direction through the transmission roller 12, and then drives the plurality of limit parts 11 to move in a circular motion together through the belt 10. The plurality of transmission parts surround the periphery of the transmission belt body 9 and present the same shape as the transmission frame 4. Figure 6From the perspective of , at this time, the transmission wheel 8 rotates clockwise, and then the transmission belt body 9 will move cyclically to the right, that is, move toward the bottom of the inclined surface. When the transmission belt body 9 moves to the right, it will rub the transmission member, and the transmission member will rotate counterclockwise, thereby driving the belt 10 to move cyclically in the opposite direction to the transmission belt body 9, that is, toward the top of the inclined surface, and the limiter 11 will also move cyclically together with the belt 10 toward the top of the inclined surface; The limiting parts 11 are arranged on the periphery of the transmission belt body 9 in the same manner as the transmission member, and a plurality of limiting parts 11 together form the same shape as the transmission frame 4; from Fig.11 It can be seen from the figure that the limit portion 11 is not at the same level as the belt 10, and one end of the outer arc of the limit portion 11 is inclined upward and protrudes from the horizontal plane of the belt 10, and then Fig.13 It can be seen that the outer arc ends of the front ends of multiple limiting portions 11 are all inclined upward, so the outer arc end of the front end of each limiting portion 11 is higher than the surface of the front limiting portion 11. Therefore, when the transmission belt body 9 circulates in the direction above the inclined surface, the corn cobs and corn kernels falling from the outlet 6 will fall onto the limiting portion 11.

[0029] See also Figure 2-Figure 14 The transmission belt body 9 is divided into a first transmission belt 901, a second transmission belt 902, a third transmission belt 903 and a fourth transmission belt 904 through a plurality of transmission wheels 8. The first transmission belt 901, the second transmission belt 902, the fourth transmission belt 904 and the third transmission belt 903 are connected end to end in sequence to form a complete transmission belt body 9, wherein the first transmission belt 901 is arranged in an inclined shape, and the transmission elements partially located in the first transmission belt 901 are grouped in pairs, and the spacing between each group is the same, and the two transmission elements in each group are close to each other; One of the transmission members in each group is connected to two second elliptical blocks 26, and the other transmission member is connected to a first elliptical block 25, the first elliptical block 25 corresponds to the outer arc end of the limiting portion 11, and the two second elliptical blocks 26 correspond to the two edges of the inner arc of the limiting portion 11 respectively; Two ribs 23 are fixedly mounted on the outer wall of the transmission belt body 9 . The ribs 23 are located at the edge of the transmission belt body 9 , and the transmission member is located between the ribs 23 and the belt 10 .

[0030] The two ribs 23 correspond to the two belts 10 respectively, and the transmission member is located between the ribs 23 and the belts 10. The transmission belt body 9 and the ribs 23 move cyclically together. The ribs 23 can keep the transmission member away from the outer surface of the transmission belt body 9, so that when the first elliptical block 25 and the second elliptical block 26 rotate, they will not contact and generate friction with the transmission belt body 9. The transmission belt body 9 is divided into four areas by the transmission wheel 8, namely the first transmission belt 901, the second transmission belt 902, the third transmission belt 903 and the fourth transmission belt 904. The corn cobs and corn kernels will first fall into the first transmission belt 901, and then the first transmission belt 901 will transmit the corn cobs to the second transmission belt 902, and the corn kernels will slide along the first transmission belt 901 to the third transmission belt 903, so that the corn cobs and corn kernels are separated into different areas; The transmission members in the second transmission belt 902, the third transmission belt 903 and the fourth transmission belt 904 are arranged at equal intervals. The transmission members in the first transmission belt 901 area are grouped in pairs, and the two transmission members in a group are close to each other. Only the transmission members in the first transmission belt 901 area are installed with the first elliptical block 25 and the first elliptical block 25. When some transmission members in the first transmission belt 901 area rotate, the first elliptical block 25 is driven to rotate, and when some transmission members rotate, the second elliptical block 26 is driven to rotate. Since the outer arc end of the limiting portion 11 is inclined upward, the distance between the outer arc end and the transmission belt body 9 is greater than the distance between the inner arc end of the limiting portion 11 and the transmission belt body 9, so the size of the second elliptical block 26 is smaller than the first elliptical block 25. In this way, when the transmission member drives the second elliptical block 26 and the first elliptical block 25 to rotate, it is possible to ensure that the second elliptical block 26 can hit the inner arc end of the limiting portion 11, and also ensure that the first elliptical block 25 can hit the outer arc end of the limiting portion 11; like Fig.10 As shown in the figure, the two second elliptical blocks 26 correspond to the two corners of the inner arc end of the limiting portion 11 and are located below the two corners of the inner arc end of the limiting portion 11, while the first elliptical block 25 corresponds to the outer arc end of the limiting portion 11 and is located below the outer arc end of the limiting portion 11; As the transmission member rotates, the belt 10 and the plurality of limit portions 11 will continue to move in a circular motion, so the limit portion 11 will continuously pass over the transmission member and the first elliptical block 25 and the second elliptical block 26. When the first elliptical block 25 and the second elliptical block 26 rotate one circle with the transmission member and hit the limit portion 11, the first elliptical block 25 and the second elliptical block 26 turn away from the limit portion 11, and the hit limit portion 11 will continue to move forward, and then the limit portion 11 at the rear will move over. When the first elliptical block 25 and the second elliptical block 26 rotate to the position of the limit portion 11 again, the next limit portion 11 will be hit. Fig.10The second elliptical block 26 hits the right limiting portion 11, and the first elliptical block 25 hits the left limiting portion 11. After the first elliptical block 25 and the second elliptical block 26 rotate one circle, the limiting portion 11 will also move, and then the second elliptical block 26 will hit the left limiting portion 11, and the first elliptical block 25 will hit the limiting portion 11 that moves behind. When the end of the first elliptical block 25 away from the transmission member hits the outer arc end of the limit portion 11, the outer arc end of the limit portion 11 will tilt upward, and when the end of the second elliptical block 26 away from the transmission member hits the inner arc end of the limit portion 11, the inner arc end of the limit portion 11 will also tilt upward. The state of the multiple limit portions 11 in the first transmission belt 901 after tilting is Fig.14 As shown in the figure, when one side of the limiting portion 11 is tilted upward, the corn cob will be acted upon by the force component of gravity along the tilting direction of the limiting portion 11, and this force component will cause the corn cob to slide downward along the tilting surface of the limiting portion 11, so that the corn cobs originally piled together are gradually dispersed under the action of gravity; For corn cobs located at a higher position of the limiting part 11, the effect of the gravity component force is more obvious, and they will slide more easily along the inclined surface, thereby realizing the redistribution of the corn cobs at different heights and positions, achieving a dispersion effect, and effectively preventing the corn cobs from blocking the corn kernels.

[0031] See also Figure 5-Figure 16 A plurality of rotating rods 27 are fixedly connected between the two belts 10, the limiting portion 11 is rotatably connected to the outer wall of the rotating rod 27, the two outer side walls of the limiting portion 11 are both against the outer wall of the belt 10, and a plurality of mounting plates 28 are fixedly installed on the outer wall of the belt 10, the mounting plate 28 is located below the limiting portion 11 and between the two belts 10, and a spring 29 is fixedly connected between the top of the mounting plate 28 and the bottom of the limiting portion 11.

[0032] One end of the rotating rod 27 is fixedly connected to the outer wall of one of the belts 10, and the other end is fixedly connected to the outer wall of the other belt 10. The limiting portion 11 is rotatably connected to the outer wall of the rotating rod 27. Therefore, when the limiting portion 11 is hit by the first elliptical block 25 or the second elliptical block 26, the limiting portion 11 can rotate along the outer wall of the rotating rod 27. In order to enable the limiting portion 11 to maintain an inclined state, a spring 29 is connected between the limiting portion 11 and the mounting plate 28. The bottom end of the spring 29 is fixedly connected to the top of the mounting plate 28, and the top end of the spring 29 is fixedly connected to the bottom of the limiting portion 11. The spring 29 supports the limiting portion 11 so that multiple limiting portions 11 can maintain a consistent inclination in the initial state.

[0033] See also Figure 9-Figure 14 , the transmission parts also include, A mounting rod 24 is fixedly connected between the two driving rollers 12, and the first elliptical block 25 and the second elliptical block 26 are both fixedly connected to the outer wall of the mounting rod 24; The driving roller 12 is located between the rib 23 and the belt 10 , the inner wall of the belt 10 is in close contact with the outer wall of the driving roller 12 , and the outer wall of the rib 23 is in close contact with the outer wall of the driving roller 12 .

[0034] The transmission roller 12 is located between the rib 23 and the belt 10. When the rib 23 moves in a circular motion, it drives the transmission roller 12 to rotate, and then drives the belt 10 to move in a circular motion in the opposite direction through the transmission roller 12. One end of the mounting rod 24 is fixedly connected to one end of one of the transmission rollers 12, and the other end is fixedly connected to one end of the other transmission roller 12. When the transmission roller 12 rotates, it drives the mounting rod 24 to rotate together, and then drives the first elliptical block 25 and the second elliptical block 26 to rotate through the mounting rod 24. The rib 23 and the outer wall of the transmission roller 12 and the inner wall of the belt 10 are connected. A plurality of teeth can be installed on the wall, so that the outer wall of the rib 23 can be meshed and connected with the transmission roller 12, and the inner wall of the belt 10 can also be meshed and connected with the transmission roller 12, and the teeth on the rib 23 and the belt 10 can mesh with the teeth on the transmission roller 12 and adapt to each other. For example, the rib 23 and the belt 10 can adopt the rack made of rubber material in the prior art, and the transmission roller 12 can adopt the gear. In this way, it can be ensured that the cyclic movement of the rib 23 can drive the transmission roller 12 to rotate, and the transmission roller 12 can also drive the belt 10 to transmit, thereby ensuring stability.

[0035] See also Figure 2-Figure 7 The inner wall of the transmission frame 4 is provided with two receiving grooves 22, the two receiving grooves 22 correspond to each other, the two ends of the transmission wheel 8 are rotatably connected to the inner walls of the two receiving grooves 22 respectively, one end of the transmission roller 12 is rotatably connected to the inner wall of the receiving groove 22, and the belt 10 and the retaining edge 23 are both located inside the receiving groove 22; Two driving parts are arranged on one side of the transmission frame 4, and at least include a transmission rod 21 fixedly connected to one end of the transmission wheel 8. One end of the transmission rod 21 penetrates the transmission frame 4 and extends to the outside of the transmission frame 4, and is rotatably connected to the transmission frame 4, so as to drive the transmission wheel 8 to rotate when rotating.

[0036] The edge of the transmission belt body 9, the rib 23, the belt 10 and the transmission roller 12 are all located inside the receiving groove 22. Figure 5 As shown in the figure, the receiving groove 22 provided in the transmission frame 4 completely wraps up the structure beyond the two sides of the limiting portion 11, and only the limiting portion 11 is exposed, so that the corn cob and corn kernels can fall directly onto the limiting portion 11 to avoid being rolled into the structure.

[0037] See also Figure 5-Figure 6The driving part also includes two stepper motors 20, which are fixedly installed inside the corn harvester body 1. The driving end of the stepper motor 20 is fixedly connected to the end of the transmission rod 21 away from the transmission wheel 8. The outer wall of the transmission rod 21 is rotatably connected to the inner wall of the transmission frame 4. The outer wall of the transmission frame 4 is fixedly connected to the inner wall of the corn harvester body 1. The transmission frame 4 is fixed inside the corn harvester body 1.

[0038] The stepper motor 20 is fixed inside the corn harvester body 1 , and the outer wall of the stepper motor 20 is fixedly connected to the inner wall of the corn harvester body 1 . The stepper motor 20 is used to drive the transmission rod 21 to rotate, and then drive the transmission wheel 8 to rotate through the transmission rod 21 .

[0039] See also Figure 2-Figure 4 The outer wall of the threshing mechanism 5 is fixedly mounted with a collecting cover 7, a connecting rod 16 is arranged inside the collecting cover 7, a plurality of stirring rods 13 are fixedly mounted on the outer wall of the connecting rod 16, a servo motor 18 is arranged below the connecting rod 16, a driving end of the servo motor 18 is fixedly connected to the bottom end of the connecting rod 16, and a first fixed block 15 is rotatably connected to the outer wall of the connecting rod 16; Two first fixing rods 14 are fixedly mounted on the outer wall of the first fixing block 15, and one end of the two first fixing rods 14 away from the first fixing block 15 is fixedly connected to the outer wall of the threshing mechanism 5; a second fixing block 19 is fixedly mounted on the outer wall of the servo motor 18, and two second fixing rods 17 are fixedly mounted on the outer wall of the second fixing block 19, and one end of the two second fixing rods 17 away from the second fixing block 19 is fixedly connected to the outer wall of the transmission frame 4; A corn cob accommodating chamber 2 and a corn kernel accommodating chamber 3 are provided in the corn harvester body 1. The third transmission belt 903 is located above the corn kernel accommodating chamber 3 and corresponds to the interior of the corn kernel accommodating chamber 3. The second transmission belt 902 is located above the corn cob accommodating chamber 2 and corresponds to the interior of the corn cob accommodating chamber 2.

[0040] The corn kernels and corn cobs coming out of the outlet 6 will directly fall into the collecting cover 7. The inlet end at the top of the collecting cover 7 is open, so that the corn kernels and corn cobs can slide down along the inner wall of the collecting cover 7. At the same time, the servo motor 18 is used to drive the connecting rod 16 to rotate, and the connecting rod 16 drives the multiple stirring rods 13 to rotate. After the stirring rods 13 rotate, they stir the corn kernels and corn cobs, making the corn kernels and corn cobs more dispersed. Then, the dispersed corn kernels and corn cobs are sprinkled from the bottom of the collecting cover 7 and fall onto the limiting part 11. The further dispersion of the corn kernels and corn cobs can prevent the corn kernels from being sandwiched between multiple corn cobs, making it more convenient to separate them. The first fixing rod 14 is fixed on the outer wall of the threshing mechanism 5 and fixes the position of the first fixing block 15, so that the first fixing block 15 can support the connecting rod 16 and the stirring rod 13. After the connecting rod 16 rotates, it will rotate along the inner wall of the first fixing block 15. The two second fixing rods 17 are fixed on the outer wall of the transmission frame 4, and then the second fixing block 19 is fixed, so that the position of the servo motor 18 can be fixed by the second fixing block 19. After the corn harvester body 1 is started, various components inside the corn harvester body 1 start to operate, and the stepper motor 20 and the servo motor 18 are also started. The starting ends of the servo motor 18 and the stepper motor 20 are connected to the corn harvester body 1, so the driver can start the servo motor 18 and the stepper motor 20 to work or stop by controlling the switch inside the corn harvester body 1; The outlet at the bottom of the collecting cover 7 for discharging materials is located inside the transmission frame 4, and the range of corn kernels and corn cobs spilled out is also inside the transmission frame 4, and will not spill out of the transmission frame 4; The second transmission belt 902 is located above the corn cob accommodating cavity 2 and corresponds to the interior of the corn cob accommodating cavity 2, so that the corn cob can fall directly into the corn cob accommodating cavity 2, and the third transmission belt 903 corresponds to the interior of the corn kernel accommodating cavity 3, so that the corn kernels can fall directly into the corn kernel accommodating cavity 3. When the corn kernels fall onto the transmission belt body 9 and roll along the inclined surface of the first transmission belt 901 to the third transmission belt 903, some of the corn kernels will spill out through the gaps between the multiple limiting parts 11 in the area of ​​the third transmission belt 903, and another part of the corn kernels will fall on the limiting parts 11 in the area of ​​the fourth transmission belt 904. However, since the limiting parts 11 are inclined, the corn kernels will also fall into the corn kernel accommodating cavity 3 through the gaps between the multiple limiting parts 11.

Claims

1. A corn kernel harvester for automatically recovering corn cobs, comprising a corn harvester body (1), a threshing mechanism (5) being arranged on the corn harvester body (1), and characterized in that: Also includes, A transmission frame (4) is located below the threshing mechanism (5), wherein a plurality of rotatably connected transmission wheels (8) are arranged in the transmission frame (4), a transmission belt body (9) is wound around the transmission wheels (8), and at least two transmission wheels (8) located at the top have a height difference, so that the transmission belt body (9) has a slope at that location; A plurality of limiting portions (11) are arranged at intervals on the outer surface of the transmission belt body (9) along the conveying direction of the transmission belt body (9); a spacing exists between the front and rear ends of the limiting portions (11) and the outer surface of the transmission belt body (9), forming an opening for separating corn cobs and corn seeds.

2. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 1, characterized in that: A plurality of limiting portions (11) are arranged at equal intervals on the transmission belt body (9), and an opening between a front end of each limiting portion (11) and an outer surface of the transmission belt body (9) is larger than an opening between a rear end of the limiting portion (11) and the outer surface of the transmission belt body (9), so that a limiting area is formed between the front and rear ends of two adjacent limiting portions (11) for separating corn cobs and corn seeds.

3. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 2, characterized in that: The front end of the limiting portion (11) is provided with an arc-shaped convex portion, and the rear end of the limiting portion (11) is provided with a concave portion matching the shape of the convex portion, and the convex portions and concave portions on two adjacent limiting portions (11) overlap, forming the limiting area between the convex portions and the concave portions.

4. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 3, characterized in that: A plurality of transmission members are arranged on the transmission frame (4) and arranged along the periphery of the transmission belt body (9). The transmission members include at least two groups of transmission rollers (12) rotatably connected to the transmission frame (4) at one end. Each group of transmission rollers (12) has a plurality of transmission rollers. The transmission rollers (12) are in close contact with the outer wall of the transmission belt body (9). Each set of driving rollers (12) is drivingly connected to a belt (10), a plurality of limiting portions (11) are located between two of the belts (10), and the inner wall of the belt (10) is in close contact with the outer wall of the driving roller (12).

5. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 4, characterized in that: The transmission belt body (9) is divided into a first transmission belt (901), a second transmission belt (902), a third transmission belt (903) and a fourth transmission belt (904) through a plurality of transmission wheels (8); the first transmission belt (901), the second transmission belt (902), the fourth transmission belt (904) and the third transmission belt (903) are connected end to end in sequence to form a complete transmission belt body (9), wherein the first transmission belt (901) is arranged in an inclined shape, and the transmission elements partially located in the first transmission belt (901) form a group of two, and the spacing between each group is the same, and the two transmission elements in each group are close to each other; One of the transmission members in each group is connected to two second elliptical blocks (26), and the other transmission member is connected to a first elliptical block (25), the first elliptical block (25) corresponds to the outer arc end of the limiting portion (11), and the two second elliptical blocks (26) respectively correspond to two edges of the inner arc of the limiting portion (11); Two ribs (23) are installed on the outer wall of the transmission belt body (9), the ribs (23) are located at the edge of the transmission belt body (9), and the transmission member is located between the ribs (23) and the belt (10).

6. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 5, characterized in that: A plurality of rotating rods (27) are connected between the two belts (10); the limiting portion (11) is rotatably connected to the outer wall of the rotating rod (27); the two outer side walls of the limiting portion (11) are both in contact with the outer wall of the belt (10); the outer wall of the belt (10) is provided with a plurality of mounting plates (28); the mounting plates (28) are located below the limiting portion (11) and between the two belts (10); and a spring (29) is connected between the top of the mounting plate (28) and the bottom of the limiting portion (11).

7. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 6, characterized in that: The transmission parts also include: A mounting rod (24) connected between the two driving rollers (12), wherein the first elliptical block (25) and the second elliptical block (26) are both connected to the outer wall of the mounting rod (24); The driving roller (12) is located between the rib (23) and the belt (10), the inner wall of the belt (10) is in close contact with the outer wall of the driving roller (12), and the outer wall of the rib (23) is in close contact with the outer wall of the driving roller (12).

8. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 7, characterized in that: The inner wall of the transmission frame (4) is provided with two receiving grooves (22), the two receiving grooves (22) correspond to each other, the two ends of the transmission wheel (8) are rotatably connected to the inner walls of the two receiving grooves (22), one end of the transmission roller (12) is rotatably connected to the inner wall of the receiving groove (22), and the belt (10) and the retaining edge (23) are both located inside the receiving groove (22); Two driving parts are arranged on one side of the transmission frame (4), and at least include a transmission rod (21) connected to one end of the transmission wheel (8); one end of the transmission rod (21) penetrates the transmission frame (4) and extends to the outside of the transmission frame (4), and is rotatably connected to the transmission frame (4), and is used to drive the transmission wheel (8) to rotate when rotating.

9. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 8, characterized in that: The driving unit further comprises two stepper motors (20), the stepper motors (20) being mounted inside the corn harvester body (1), the driving end of the stepper motor (20) being connected to an end of a transmission rod (21) away from the transmission wheel (8), the outer wall of the transmission rod (21) being rotatably connected to the inner wall of a transmission frame (4), the outer wall of the transmission frame (4) being connected to the inner wall of the corn harvester body (1), and the transmission frame (4) being fixed inside the corn harvester body (1).

10. A corn kernel harvester for automatically recovering corn cobs as claimed in claim 9, characterized in that: A collecting cover (7) is installed on the outer wall of the threshing mechanism (5), a connecting rod (16) is arranged inside the collecting cover (7), a plurality of stirring rods (13) are installed on the outer wall of the connecting rod (16), a servo motor (18) is arranged below the connecting rod (16), a driving end of the servo motor (18) is connected to the bottom end of the connecting rod (16), and the outer wall of the connecting rod (16) is rotatably connected to a first fixing block (15); Two first fixing rods (14) are mounted on the outer wall of the first fixing block (15), and one end of the two first fixing rods (14) away from the first fixing block (15) is connected to the outer wall of the threshing mechanism (5); a second fixing block (19) is mounted on the outer wall of the servo motor (18), and two second fixing rods (17) are mounted on the outer wall of the second fixing block (19), and one end of the two second fixing rods (17) away from the second fixing block (19) is connected to the outer wall of the transmission frame (4); A corn cob accommodating chamber (2) and a corn kernel accommodating chamber (3) are provided in the corn harvester body (1); the third transmission belt (903) is located above the corn kernel accommodating chamber (3) and corresponds to the interior of the corn kernel accommodating chamber (3); and the second transmission belt (902) is located above the corn cob accommodating chamber (2) and corresponds to the interior of the corn cob accommodating chamber (2).

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