A fresh corn thresher capable of reducing kernel breakage

Abstract

This utility model discloses a fresh corn thresher that reduces kernel breakage rate, relating to the field of corn threshing technology. It includes a frame, with a feeding shell at the top for feeding corn. An air pump is fixedly installed at the top of the feeding shell. A buffer assembly for cushioning the corn feed is fixedly installed inside the feeding shell, and a collection assembly for collecting debris is installed at the bottom of the buffer assembly. The buffer assembly includes a first support plate and a second support plate arranged in a stepped manner. This utility model, through the buffer assembly and a three-stage buffer structure with a stepped design, decomposes a single high-speed impact into multiple buffering and deceleration operations, reducing the breakage of the corn kernels caused by instantaneous collision. A guide component ensures that the corn cob slides smoothly from the second support plate to the threshing zone. Simultaneously, as the corn cob passes through the buffer zone, the air pump blows air onto the corn cob, reducing the amount of light impurities adhering to it.

Description

Technical Field

[0001] This utility model relates to the field of corn threshing technology, specifically a fresh corn threshing machine that can reduce the kernel breakage rate. Background Technology

[0002] Fresh corn (such as sweet corn and waxy corn) is prone to breakage during mechanical threshing due to its crisp kernels and high moisture content (usually 70%~75%), resulting in a decrease in its commercial value. Traditional corn threshers are mainly designed for dry grain corn, and their working methods (such as high-speed roller impact and rigid extrusion) are difficult to adapt to the physical characteristics of fresh corn.

[0003] An existing patent (authorization announcement number: CN221768786U) discloses a corn thresher. The key technical points of the solution are: by setting a dust removal mechanism at the bottom of the rotating roller, the airflow is guided to act on the surface of the corn kernels, so that the corn kernels threshed from the top enter the auger to collect the stalks, ears and other impurities. There is no need to screen the collected corn kernels again, making it more convenient to use. At the same time, the setting of the first guide plate and the second guide plate makes threshing cleaner. The first guide plate and the second guide plate are respectively connected to the rear and front of the threshing plate. The stalks, ears and other impurities that fall down are dispersed by at least one of the inclined first guide plate and the second guide plate. The lighter stalks, ears and other impurities are blown away by the airflow stirred by the paddle blades, while the heavier corn kernels slide down with the second guide plate to the auger and are collected from the side of the machine.

[0004] However, the above technical solutions still have certain defects. When fresh corn is fed, it is easy for it to collide with the equipment opening, causing the corn to be damaged before it is threshed. At the same time, fresh corn cobs have a high moisture content and the bonding force between the kernels and the cob is weak, which can easily cause the surface of the kernels to tear during mechanical threshing. Therefore, a fresh corn threshing machine that can reduce the kernel breakage rate is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a fresh corn thresher that can reduce the kernel breakage rate, thereby solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A fresh corn thresher that can reduce the kernel breakage rate includes a frame, a feeding shell for feeding corn is provided on the top of the frame, an air pump is fixedly provided on the top of the feeding shell, a buffer component for buffering the corn feeding is fixedly installed inside the feeding shell, a collection component for collecting debris is provided at the bottom of the buffer component, a locking component is provided on the side of the frame away from the buffer component, and a transmission component for threshing corn is also provided on the frame. The buffer assembly includes a first support plate and a second support plate, which are arranged in a stepped manner. The bottom of the second support plate is provided with a guide member that is fixedly connected to the feed shell. The bottom of the inner wall of the feed shell is fixedly provided with a hinge rod, and the hinge rod is parallel to the bottom edge of the guide member. The air pump blows airflow into the feed chamber, and the airflow direction is perpendicular to the center line of the first material receiving plate.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: As a further embodiment of this utility model: the collection component includes a magnet block fixedly installed on the side of the frame near the buffer component, the magnet block is magnetically attracted to a magnetic buckle, and a collection box is fixedly provided on the side of the magnetic buckle away from the frame, and a groove is provided on the top of the collection box.

[0008] As a further embodiment of this utility model: the locking assembly includes a particle-separating plate rotatably mounted on the frame on the side away from the collection box, a limiting rod fixedly provided on the other side of the particle-separating plate, a fixed post slidably provided on the limiting rod, a groove provided on the fixed post to facilitate the sliding of the limiting rod, another groove provided in the groove, a spring fixedly provided in the groove, a limiting block fixedly connected to the spring, the limiting block abutting against the limiting rod, and a locking strip slidably provided on the fixed post to lock the limiting block.

[0009] As a further embodiment of this utility model: the transmission assembly includes a drive motor fixedly mounted on the frame, the drive motor drives a separating roller via a synchronous belt, the other end of the separating roller is also driven by a synchronous belt to a discharge roller for discharging corn kernels, and a guide plate is fixedly mounted on the frame.

[0010] As a further improvement of this utility model: the guide plate is disposed at the bottom of the granulation plate, the guide plate is inclined, and the guide plate is made of elastic material.

[0011] As a further improvement of this utility model, holes are formed on the surfaces of the first support plate and the second support plate.

[0012] As a further improvement of this utility model: multiple sets of springs and limiting blocks are provided, and the distance between every two sets of limiting blocks is the same as the diameter of the limiting rod.

[0013] As a further improvement of this utility model, the separating roller is a toothed roller.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a buffer component and using a three-level buffer structure and stepped design, decomposes a one-time high-speed impact into multiple buffer decelerations, reducing the damage to the whole corn cob kernels caused by instantaneous collision. The guide component ensures that the corn cob slides smoothly from the second support plate to the threshing area. At the same time, when the corn cob passes through the buffer area, the air pump blows air onto the corn cob body to reduce the light impurities attached to the corn cob body.

[0015] 2. This utility model, by setting a locking component and a limiting rod, can adjust the distance between the grain separating plate and the separating roller. The position of the limiting block can be manually adjusted to achieve the grading and positioning of the grain separating plate, which is suitable for threshing corn cobs of different sizes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the buffer component of this utility model; Figure 3 This is a structural schematic diagram of the quick-release assembly of this utility model; Figure 4 This is a schematic diagram of the transmission component of this utility model; Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle.

[0017] Figure reference numerals: 1. Frame; 2. Feed housing; 3. Air pump; 4. Buffer assembly; 5. Collection assembly; 6. Engaging assembly; 7. Transmission assembly; 41. First support plate; 42. Second support plate; 43. Divider plate; 44. Guide component; 45. Hinge rod; 51. Collection box; 52. Magnetic clasp; 53. Magnetic block; 61. Particle dividing plate; 62. Fixing post; 63. Limiting rod; 64. Spring; 65. Limiting block; 71. Drive motor; 72. Separating roller; 73. Outgoing roller; 74. Guide plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] In one embodiment, such as Figures 1-5As shown, a fresh corn thresher that can reduce the kernel breakage rate includes a frame 1, a feeding shell 2 for feeding corn is provided on the top of the frame 1, an air pump 3 is fixedly provided on the top of the feeding shell 2, a buffer component 4 for buffering the corn feeding is fixedly installed inside the feeding shell 2, a collection component 5 for collecting debris is provided at the bottom of the buffer component 4, a locking component 6 is provided on the side of the frame 1 away from the buffer component 4, and a transmission component 7 for threshing corn is also provided on the frame 1. In this embodiment, when fresh corn cobs enter from the feed hull 2, the stepped receiving and guiding of the buffer assembly 4 prevents the corn from directly impacting the threshing component at high speed, reducing the initial damage to the kernels. At the same time, as the corn cobs pass through the buffer area, the air pump 3 blows air onto the corn cobs, which can disperse light impurities. After passing through the buffer assembly 4, the corn cobs pass through the collection assembly 5. The corn cobs themselves are blocked by the hinge rod 45, while the remaining small debris will pass through the hinge rod 45 and fall into the collection box 51 for collection. Meanwhile, the distance between the grain separating plate 61 and the separating roller 72 is adjusted by the locking assembly 6 to accommodate the spacing diameter of different corn kernels. Finally, the transmission assembly 7 controls the rotation of the separating roller 72 and the discharge roller 73 simultaneously, facilitating the discharge of finished corn kernels while separating the corn kernels.

[0020] In one embodiment, such as Figure 2 As shown, the buffer assembly 4 includes a first support plate 41 and a second support plate 42, which are arranged in a stepped manner. A guide 44, fixedly connected to the feed shell 2, is provided at the bottom of the second support plate 42. A hinge rod 45 is fixedly provided at the bottom of the inner wall of the feed shell 2, and the hinge rod 45 is parallel to the bottom edge of the guide 44. The air pump 3 blows airflow into the feed shell 2, with the airflow direction perpendicular to the center line of the plane of the first support plate 41. Holes are provided on the surfaces of the first support plate 41 and the second support plate 42. When the corn cob falls from the feed shell 2, it first contacts the first support plate 41 and then slides onto the second support plate 42. This stepped design decomposes the high-speed impact into multiple buffering and deceleration operations, effectively reducing the impact on the kernels. In the event of a sudden collision causing damage, the guide 44 ensures that the corn cob slides smoothly from the second support plate 42 to the threshing area, avoiding local compression caused by skewing or jamming. As the corn cob falls with the guide 44, it passes through the hinge rod 45, and the distance between the hinge rod 45 and the guide 44 and the grain separating plate 61 is less than the diameter of the corn cob. The hinge rod 45 is used to prevent the corn cob from falling into the collection box 51, while facilitating the falling of other small impurities into the collection box 51. The airflow direction of the air pump 3 is perpendicular to the center line of the plane of the first support plate 41, blowing away the light impurities (husks, corn silk) attached to the corn cob, and at the same time blowing away the corn silk and husks gathered near the holes, which fall into the collection component 5 through the holes, reducing the risk of blockage during subsequent threshing.

[0021] In one embodiment, such as Figure 3 As shown, the collecting component 5 includes a magnet block 53 fixedly installed on the side of the frame 1 near the buffer component 4. The magnet block 53 is magnetically attracted to a magnetic buckle 52. A collecting box 51 is fixedly installed on the side of the magnetic buckle 52 away from the frame 1. The top of the collecting box 51 has a groove. By fixing the magnet block 53 and the magnetic buckle 52, it can be quickly disassembled and cleaned, avoiding the problem of easy clogging of traditional screens. The groove on the top of the collecting box 51 collects impurities, keeps the threshing environment clean, and reduces secondary pollution of the grains by impurities. At the same time, by adsorbing and fixing the magnet block 53 and the magnetic buckle 52, the collecting box 51 can be quickly disassembled and assembled by hand. Furthermore, the collecting box 51 is located near the outlet of the buffer component 4 and can directly receive impurities falling from the holes of the receiving plate.

[0022] In one embodiment, such as Figure 5 As shown, the engaging assembly 6 includes a particle separating plate 61 rotatably mounted on the frame 1 on the side away from the collection box 51. A limit rod 63 is fixedly provided on the other side of the particle separating plate 61. A fixing post 62 is slidably provided on the limit rod 63. A groove is provided on the fixing post 62 to facilitate the sliding of the limit rod 63. Another groove is provided in the groove, and a spring 64 is fixedly provided in the groove. The spring 64 is fixedly connected to a limit block 65. The limit block 65 abuts against the limit rod 63. An engaging strip 66 is also slidably provided on the fixing post 62 to engage the limit block 65. Multiple sets of springs 64 and limit blocks 65 are provided, and each pair of springs 64 and limit blocks 65 are provided. The distance between the limit blocks 65 is the same as the diameter of the limit rod 63. By pushing the limit rod 63, the distance between the grain separating plate 61 and the separating roller 72 can be adjusted. The preload of the spring 64 can be adjusted according to the hardness requirements of different varieties of corn. When encountering large or irregularly shaped corn cobs, the locking strip 66 can be pulled out to lock into the fixed column 61, limiting the limit block 65 and preventing the limit block 65 from being locked into the fixed column 61 along with the spring 64, which would cause the grain separating plate 61 to adjust automatically. By pulling out the locking strip 66, the position of the limit block 65 can be manually adjusted to achieve the grading and positioning of the grain separating plate 61, which is suitable for threshing corn cobs of different sizes.

[0023] In one embodiment, such as Figure 4As shown, the transmission assembly 7 includes a drive motor 71 fixedly mounted on the frame 1. The drive motor 71 drives a separating roller 72 via a synchronous belt. The other end of the separating roller 72 is also driven by a synchronous belt to an export roller 73 for exporting corn kernels. A guide plate 74 is fixedly mounted on the frame 1. The guide plate 74 is located at the bottom of the grain separating plate 61. The guide plate 74 is inclined and made of elastic material. The separating roller 72 is a spiked tooth roller. The drive motor 71 drives the separating roller 72 and the export roller 73 simultaneously, so that the separated corn kernels slide through the guide plate 74 to the export roller 73 and are exported by the spiral export roller 73, preventing the corn kernels from accumulating and breaking.

[0024] The above embodiment discloses a fresh corn thresher that can reduce the kernel breakage rate. When the fresh corn cob enters from the feed hull 2, the stepped receiving and guiding of the buffer component 4 prevents the corn from directly impacting the threshing part at high speed, reducing the initial breakage of the kernels. At the same time, as the corn cob passes through the buffer area, the air pump 3 blows air onto the corn cob, which can disperse light impurities. After passing through the buffer component 4, the corn cob passes through the collection component 5. The corn cob itself is blocked by the hinge rod 45, while the remaining small debris will pass through the hinge rod 45 and fall into the collection box 51 for collection. Meanwhile, the distance between the kernel separating plate 61 and the separating roller 72 is adjusted by the locking component 6 to accommodate different corn spacing diameters. Finally, the transmission component 7 controls the rotation of the separating roller 72 and the discharge roller 73 simultaneously, which facilitates the discharge of finished corn kernels while separating the corn kernels.

[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fresh corn thresher that can reduce the kernel breakage rate, comprising a frame (1), wherein a feed shell (2) for feeding corn is provided on the top of the frame (1), and an air pump (3) is fixedly provided on the top of the feed shell (2), characterized in that, The feed shell (2) is fixedly installed with a buffer assembly (4) for buffering the corn feed. The bottom of the buffer assembly (4) is provided with a collection assembly (5) for collecting debris. The frame (1) is provided with a locking assembly (6) on the side away from the buffer assembly (4). The frame (1) is also provided with a transmission assembly (7) for corn threshing. The buffer assembly (4) includes a first support plate (41) and a second support plate (42), which are arranged in a stepped manner. The bottom of the second support plate (42) is provided with a guide (44) that is fixedly connected to the feed shell (2). The bottom of the inner wall of the feed shell (2) is fixedly provided with a hinge rod (45), and the hinge rod (45) is parallel to the bottom edge of the guide (44). The air pump (3) blows air into the feed housing (2), and the airflow direction is perpendicular to the center line of the plane of the first support plate (41).

2. The fresh corn thresher according to claim 1, characterized in that, The collection component (5) includes a magnet block (53) fixedly installed on the side of the frame (1) near the buffer component (4). The magnet block (53) is magnetically attracted to a magnetic buckle (52). A collection box (51) is fixedly installed on the side of the magnetic buckle (52) away from the frame (1). A groove is provided on the top of the collection box (51).

3. The fresh corn thresher according to claim 1, characterized in that, The locking assembly (6) includes a particle separating plate (61) rotatably mounted on the frame (1) on the side away from the collection box (51). A limit rod (63) is fixedly provided on the other side of the particle separating plate (61). A fixing post (62) is slidably provided on the limit rod (63). A groove is provided on the fixing post (62) to facilitate the sliding of the limit rod (63). Another groove is provided in the groove. A spring (64) is fixedly provided in the groove. A limit block (65) is fixedly connected to the spring (64). The limit block (65) abuts against the limit rod (63). A locking strip (66) for locking the limit block (65) is also slidably provided on the fixing post (62).

4. A fresh corn thresher according to claim 1, characterized in that, The transmission assembly (7) includes a drive motor (71) fixedly mounted on the frame (1), the drive motor (71) drives a separation roller (72) via a synchronous belt, and the other end of the separation roller (72) also drives an export roller (73) for exporting corn kernels via a synchronous belt. A guide plate (74) is fixedly mounted on the frame (1).

5. A fresh corn thresher according to claim 4, characterized in that, The guide plate (74) is disposed at the bottom of the granulation plate (61), the guide plate (74) is inclined, and the guide plate (74) is made of elastic material.

6. A fresh corn thresher according to claim 1, characterized in that, Holes are formed on the surfaces of the first support plate (41) and the second support plate (42).

7. A fresh corn thresher according to claim 3, characterized in that, The spring (64) and the limiting block (65) are provided in multiple sets, and the distance between each two sets of limiting blocks (65) is the same as the diameter of the limiting rod (63).

8. A fresh corn thresher according to claim 4, characterized in that, The separating roller (72) is a spiked tooth roller.

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