A corn threshing roller and a corn threshing roller assembly

Abstract

This utility model discloses a corn threshing roller and a corn threshing roller assembly, belonging to the technical field of small agricultural threshers, mainly used for corn threshing. The technical problem to be solved by this utility model is to provide a corn threshing roller, including a rotating shaft and a supporting mechanism. A first layer of threshing ribs is arranged on the supporting mechanism with the rotating shaft as the center, and a second layer of threshing ribs is arranged outside the first threshing ribs. The supporting mechanism includes end supports arranged at the ends of the rotating shaft, and the first layer of threshing ribs is arranged between the end supports. The inner side of the first layer of threshing ribs has space for material passage. A corn threshing roller assembly is also provided, including a first and a second threshing roller arranged in parallel, forming a threshing channel between them. The first threshing roller is the aforementioned corn threshing roller, and the second threshing roller includes a second rotating shaft, a second supporting mechanism, and auxiliary threshing ribs. This utility model can improve the threshing rate and threshing efficiency, reduce the breakage rate, and improve the threshing quality.

Description

Technical Field

[0001] This utility model relates to the field of agricultural small threshers, and in particular to a corn threshing roller and corn threshing roller assembly for a corn thresher. Background Technology

[0002] The threshing rollers used in existing corn threshers are often cylindrical in structure, with threshing ribs arranged circumferentially around the cylindrical structure. These threshing ribs are used to thresh the corn. For details, please refer to CN203840793U "Threshing Cylinder with Double-Layer Threshing Ribs". This design has two layers of threshing ribs on the surface of the threshing cylinder. The first layer of threshing ribs is located on the surface of the threshing cylinder, and the second layer of threshing ribs is closely attached to the outside of the first layer of threshing ribs. This design improves the threshing speed and threshing efficiency through the synergistic effect of the double-layer ribs, while shortening the overall length of the threshing cylinder. However, in actual use, it was found that due to the gap between the first layer of threshing ribs and the surface of the threshing cylinder, and the staggered space formed between the first and second layers of threshing ribs, the corn kernels after threshing are small and easily embedded in the gaps, making it difficult to discharge quickly. This causes the corn kernels to remain on the threshing cylinder. As subsequent corn cobs to be threshed continue to enter, the embedded corn kernels are squeezed and collided with by the subsequent materials, resulting in an increased breakage rate, reduced integrity of the corn kernels after threshing, increased difficulty in cleaning the equipment, and reduced efficiency of continuous operation, making it impossible to guarantee the quality of the corn kernels after threshing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a corn threshing roller and a corn threshing roller assembly, which are mainly used for corn threshing, so as to achieve fast threshing speed, good threshing effect and high threshing integrity.

[0004] This utility model discloses a corn threshing roller, including a rotating shaft, a first layer of threshing ribs, a second layer of threshing ribs, and a support mechanism for supporting the first layer of threshing ribs. The first layer of threshing ribs is arranged on the support mechanism with the rotating shaft as the center, and the second layer of threshing ribs is arranged on the outside of the first layer of threshing ribs. The support mechanism includes end supports arranged at the ends of the rotating shaft, and the first layer of threshing ribs is arranged between the end supports. The inner side of the first layer of threshing ribs has a space for material to pass through.

[0005] Furthermore, the support mechanism also includes an inner support member disposed between the end supports, one side of which is connected to the inner side of the first layer of threshing ribs, and the other side is connected to the rotating shaft.

[0006] In a preferred embodiment, the inner support member includes a first support member disposed on the rotating shaft, and at least one of the first support members is evenly distributed between the end support members along the length direction of the rotating shaft.

[0007] As a preferred embodiment, the first support member is a rod or a plate arranged parallel to the end support member.

[0008] In a preferred embodiment, the inner support member includes support ribs arranged parallel to the pivot, and at least three support ribs are provided. The at least three support ribs are evenly distributed around the end support member and connected to the end support member.

[0009] As a preferred embodiment, the number of supporting ribs is 3-5.

[0010] In a preferred embodiment, the inner support includes a first support disposed on the rotating shaft and a support rib disposed parallel to the rotating shaft. At least one of the first support is evenly distributed between the end supports along the length of the rotating shaft. There are at least three support ribs, which are evenly distributed around the end supports and connected to them. One end of the first support is connected to the inner side of the support rib, and one side of the support rib is connected to the inner side of the first layer of threshing ribs.

[0011] As a preferred embodiment, the inner support includes a support plate, and at least three support plates are provided. The support plates are evenly distributed radially between the end supports with the pivot as the center and are connected to the end supports. One side of the support plate is connected to the pivot, and the other side is connected to the inner side of the first layer of threshing reinforcement.

[0012] In a preferred embodiment, the inner support includes a support plate, and at least three support plates are provided. The support plates are arranged radially and evenly between the end supports with the pivot as the center and are connected to the end supports. A gap for material passage is provided between the side of the support plate near the pivot and the pivot. The side of the support plate away from the pivot is connected to the inner side of the first layer of threshing ribs.

[0013] As a preferred embodiment, the rotating shaft is a two-section concentric shaft, which is respectively mounted on the end support and extends in a direction away from the inner support. The inner support includes at least three support plates, which are connected in pairs on one side and are radially distributed. The connecting part of the support plate forms a concentric shaft with the rotating shaft, and the other side of the support plate is connected to the inner side of the first layer of threshing ribs.

[0014] As a preferred embodiment, the device also includes a threshing cylinder mounted on the rotating shaft, wherein the threshing cylinder and the inner support are sequentially connected between the end supports.

[0015] This utility model also provides a corn threshing roller assembly, including a first threshing roller and a second threshing roller. The first threshing roller is a corn threshing roller as described above. The second threshing roller is arranged parallel to one side of the first threshing roller. A threshing channel for material passage is formed between the second threshing roller and the first threshing roller. The second threshing roller includes a second rotating shaft, an auxiliary threshing rib, and a second support mechanism. The second support mechanism includes a second end support member disposed at the end of the second rotating shaft. The auxiliary threshing rib is disposed between the second end support member with the rotating shaft as the center. There is a space for material passage between the auxiliary threshing rib and the second rotating shaft.

[0016] In a preferred embodiment, the second support mechanism further includes a second inner support disposed between the second end supports, wherein the side of the second inner support away from the second pivot is connected to the inner side of the auxiliary threshing rib.

[0017] As a preferred embodiment, the diameter of the first threshing roller is larger than the diameter of the second threshing roller.

[0018] The beneficial effects of this utility model are as follows: by setting the end support member as the support mechanism for the first layer of threshing ribs, there is a cavity between the first layer of threshing ribs and the rotating shaft, which is a space for material to pass through. This allows the corn kernels after being threshed by the first and second layers of threshing ribs to fall directly into the space for material to pass through and into the material collection chamber below. This avoids the threshed particles getting stuck at the junction of the support mechanism and the first layer of threshing ribs, causing them to be squeezed by other materials being threshed, resulting in the breakage of the threshed particles, reducing the breakage rate, ensuring the integrity of the material, and improving the overall quality of the threshed product. Attached Figure Description

[0019] Figure 1 Schematic diagram of the structure of a corn threshing roller;

[0020] Figure 2 : A schematic diagram of the structure of the second type of corn threshing roller;

[0021] Figure 3 : A schematic diagram of the structure of the third type of corn threshing roller;

[0022] Figure 4 : A schematic diagram of the structure of the fourth type of corn threshing roller;

[0023] Figure 5 : A schematic diagram of the structure of the fifth type of corn threshing roller;

[0024] Figure 6 : A schematic diagram of a corn threshing roller structure that uses the first support member and the support rib as the inner support member;

[0025] Figure 7: A structural diagram showing the use of supporting ribs in conjunction with the first supporting member as an internal supporting member;

[0026] Figure 8 : A structural diagram showing a structure using reinforcing ribs as internal supports;

[0027] Figure 9 : A structural diagram showing the use of rods as the first support and supporting ribs as the inner support;

[0028] Figure 10 : Schematic diagram of the first corn threshing roller structure that uses a support plate as an internal support component;

[0029] Figure 11 : Figure 10 Schematic diagram of the inner support component;

[0030] Figure 12 : A schematic diagram of the second type of corn threshing roller structure that uses a support plate as an internal support component;

[0031] Figure 13 : Figure 12 Schematic diagram of the inner support component;

[0032] Figure 14 : Schematic diagram of the third type of corn threshing roller structure that uses a support plate as an internal support component;

[0033] Figure 15 : Figure 14 Schematic diagram of the inner support component;

[0034] Figure 16 : A schematic diagram of the U-shaped material leakage chamber;

[0035] Figure 17 Schematic diagram of the V-shaped material leakage chamber;

[0036] Figure 18 A schematic diagram of a segmented corn threshing roller;

[0037] Figure 19 : Figure 18 Schematic diagram of the support mechanism for a segmented corn threshing roller;

[0038] Figure 20 : Schematic diagram of the second threshing roller;

[0039] Figure 21 Schematic diagram of the corn threshing roller assembly;

[0040] Reference numerals: 1-rotating shaft; 2-supporting mechanism; 21-end support; 22-inner support; 221-first support; 222-support rib; 223-support plate; 2231-material leakage chamber; 2232-gap; 2233-connection; 224-three-stage threshing surface; 3-first layer threshing rib; 311-space for material passage; 4-second layer threshing rib; 5-first threshing roller; 6-second threshing roller; 61-second rotating shaft; 62-second supporting mechanism; 621-second end support; 622-second inner support; 63-auxiliary threshing rib; 7-threshing channel; 8-threshing cylinder. Detailed Implementation

[0041] The present invention will be further described below.

[0042] This utility model provides a corn threshing roller, mainly used for corn threshing. It includes a rotating shaft 1, a first layer of threshing ribs 3, a second layer of threshing ribs 4, and a support mechanism 2 for supporting the first layer of threshing ribs 3. The first layer of threshing ribs 3 is arranged on the support mechanism 2 with the rotating shaft 1 as the center. The second layer of threshing ribs 4 is arranged on the outside of the first layer of threshing ribs 3. The support mechanism 2 includes end support members 21 arranged at the end of the rotating shaft 1. The first layer of threshing ribs 3 is arranged between the end support members 21. The inner side of the first layer of threshing ribs 3 has a space 311 for material to pass through.

[0043] like Figures 1-15 As shown, the corn threshing roller includes a rotating shaft 1, on which a bearing is mounted. The bearing is connected to a bearing seat on the frame to install the corn threshing roller inside the threshing chamber of the frame. The roller is driven by a motor, diesel engine, or other drive mechanism to rotate and thresh the material. The rotating shaft 1 is equipped with a support mechanism 2 for supporting the first layer of threshing ribs 3. The first layer of threshing ribs 3 is mounted on the support mechanism 2, and a second layer of threshing ribs 4 is located outside the first layer of threshing ribs 3. The second layer of threshing ribs 4 can be rotated as follows: Figure 1 As shown, a second-layer threshing bar 4 is spirally wound around the outside of the first-layer threshing bar 3; or it can be like this Figure 2 , Figure 3 As shown, one, two, or more second-layer threshing ribs are obliquely arranged outside the first-layer threshing ribs, with both ends fixedly connected to the end support 21. During operation, the second-layer threshing ribs 4 first contact the corn cob to perform primary threshing of the corn kernels, and then the first-layer threshing ribs 3 perform secondary threshing of the corn cob to achieve corn threshing. To avoid the corn kernels getting stuck between the first-layer threshing ribs 3 and the support mechanism 2 during the threshing process, causing damage to the corn kernels due to compression, as shown... Figure 1 As shown, the support mechanism 2 includes an end support member 21 disposed at the end of the rotating shaft 1, and the first layer of threshing ribs 3 is spirally wound between the two end support members 21 with the axis of the rotating shaft 1 as the center, or as shown in the figure. Figure 2As shown, the first layer of threshing ribs 3 are evenly distributed transversely around the axis of the rotating shaft 1 along the circumference of the two end supports, connecting the two end supports while serving as the threshing surface for threshing the corn; it can also be as follows: Figure 3 As shown, the first layer of threshing ribs 3 is spirally wound between the two end supports 21 with the axis of the rotating shaft 1 as the center. Its helix angle is large, and multiple threshing ribs are wound between the two end supports 21 and fixedly connected to the circumference of the end supports 21; alternatively, it can be... Figure 4 As shown, the first layer of threshing ribs 3 is a perforated shell wound between the two end supports 21. The shape of the openings on the shell can be circular, elliptical, triangular, or rhomboid, etc., as long as there is space 311 for material to pass through between the shell and the rotating shaft. A second layer of threshing ribs 4 is wound around the outside of the first layer of threshing ribs 3. The number and direction of the second layer of threshing ribs 4 are set according to actual needs; or as shown in the diagram. Figure 5 As shown, the first layer of threshing ribs 3 is a mesh structure wound between the two end supports 21. It is sufficient to ensure that there is a space 311 between this mesh structure and the rotating shaft for material passage. A second layer of threshing ribs 4 is wound around the outside of the first layer of threshing ribs 3. The number and direction of the second layer of threshing ribs 4 are set according to actual needs. This ensures that there is a space 311 between the rotating shaft 1 section located between the two end supports 21 and the first layer of threshing ribs 3 for material passage. The end supports 21 are coaxially arranged with the rotating shaft 1 to ensure the stability of the entire corn threshing roller during rotation. The end support 21 serves as the support mechanism for the first threshing rib 3, creating a cavity 311 on the inner side of the first threshing rib 3 for material passage. This allows the corn kernels, after being threshed by the first and second threshing ribs 3 and 4, to fall directly into the material passage space 311 and into the material collection chamber below. This prevents the threshed particles from getting stuck at the junction of the support mechanism 2 and the first threshing rib 3, causing them to be squeezed by other materials being threshed, resulting in particle breakage, reducing the breakage rate, ensuring material integrity, and improving the overall quality of the threshed product. The end support 21 can be designed as follows: Figure 1 The circular plate shown can also be a square plate. The diagonal length of the square plate is the same as the diameter of the cross-section of the first layer of threshing ribs 3, as long as the support strength is guaranteed. A cylinder can also be used as the end support 21, but it is necessary to ensure that the part of the first layer of threshing ribs 3 wrapped between the two cylinders has a space 311 for material to pass through. When a circular plate is used as the end support, it can not only support the first layer of threshing ribs 3, but also seal the material after threshing, preventing the material from splashing out of the threshing chamber.

[0044] The space 311 for material passage on the inner side of the first layer of threshing ribs 3 mentioned above includes, but is not limited to, the following three methods, with Example 1 being as follows: Figure 1As shown, the rotating shaft 1 is disposed between the two end supports 21, and the space 311 is the cavity between the inner side of the first threshing rib 3 and the rotating shaft 1; in embodiment 2, the rotating shaft is two concentric shafts respectively disposed on the end supports 21 and extending in a direction away from the first threshing rib 3. In this case, the space 311 for material passage is the cavity between the first threshing rib 3 and the two end supports 21; embodiment 3 is as follows. Figure 15 As shown, the rotating shaft 1 is a concentric shaft with two sections. Each section of the rotating shaft 1 is respectively set on the end support member 21 and extends in the direction away from the inner support member. A support plate 233 is provided between the two end support members 21. At least three support plates 223 are connected on one side, and the connecting part 2233 of the support plate 223 forms a concentric shaft with the rotating shaft 1. At this time, the space 311 for material passage is a cavity formed by the first layer of threshing ribs 3, the two end support members 21, and the connecting part 2233 of the support plate 223.

[0045] like Figures 1-5 As shown, because the portion of the first layer of threshing ribs 3 located between the two end supports 21 has no contact with the rotating shaft 1, it is prone to deformation during use, affecting the threshing effect. Figures 6-17 As shown, the support mechanism 2 also includes an inner support 22 disposed between the end support members 21. One side of the inner support 22 is connected to the inner side of the first threshing rib 3, and the other side is connected to the rotating shaft 1. By setting the inner support 22 between the first threshing rib 3 and the rotating shaft 1, the portion of the first threshing rib 3 located between the two end support members 21 is supported, ensuring that the first threshing rib 3 will not deform during the material threshing process. It should be noted that even with the inner support 22, there is still space 331 between the first threshing rib 3 and the rotating shaft 1 for material to pass through, so as to avoid the threshed particles getting stuck at the junction of the support mechanism 2 and the first threshing rib 3, and being squeezed by other materials being threshed, causing the threshed particles to break, reducing the breakage rate, ensuring the integrity of the material, and improving the overall quality of the threshed product.

[0046] The first embodiment of the internal support member 22, such as Figure 6 , Figure 7As shown, the inner support member 22 includes a first support member 221 disposed on the rotating shaft 1. At least one first support member 221 is evenly distributed between the end support members 21 along the length direction of the rotating shaft 1. By setting the first support member 221 on the rotating shaft 1, i.e., one end of the first support member 221 is connected to the rotating shaft 1 and the other end of the first support member 221 is connected to the inner side of the first layer of threshing ribs 3, the first support member 221 is used to support the first layer of threshing ribs 3 located between the two end support members 21, thus preventing the first layer of threshing ribs 3 from bending and deforming after long-term use. The number and spacing of the first support members 221 on the rotating shaft 1 can be set according to the length of the entire corn threshing roller; specifically, as shown... Figure 3 As shown, the first support member 221 can be a rod or a plate parallel to the end support member; it is only necessary to ensure that one end of the first support member 221 is connected to the rotating shaft 1 and the other end is connected to the inner side of the first layer of threshing reinforcement 3.

[0047] A second embodiment of the internal support member 22, such as Figures 6-9 As shown, the inner support member 22 includes support ribs 222 arranged parallel to the rotating shaft 1. At least three support ribs 222 are provided, and these three ribs are evenly distributed around the end support member 21 and connected to it. When the support ribs 222 are used as the inner support member 22, the space 311 for material passage is a hollow structure formed between the end support member 21, the support ribs 222, the first layer of threshing ribs 3, and the rotating shaft 1. Using the support ribs 222 as the inner support member 22 between the two end support members 21 is convenient because existing steel bars can be directly welded between the end support members 21. To ensure the supporting effect of the support ribs 222 on the first layer of threshing ribs 3, at least three support ribs 222 are spaced circumferentially along the end support member 21. The threshed material does not need to contact any other components and falls directly into the particle collection chamber under gravity, preventing it from adhering to the outer surface of the support mechanism and being squeezed by other threshing materials, thus avoiding particle breakage. Furthermore, the support ribs 222 are arranged at different angles than the first layer of threshing ribs 3 and the second layer of threshing ribs 4. Their outer edges can serve as a tertiary threshing surface 224 to thresh the corn cobs that have undergone primary and secondary threshing, improving the net threshing rate and threshing speed. As a preferred embodiment, to avoid increasing the weight of the entire corn threshing roller due to an excessive number of support ribs 222, the number of support ribs 222 is 3-5.

[0048] A third embodiment of the internal support member 22, such as Figures 6-9As shown, the inner support member 22 includes a first support member 221 disposed on the rotating shaft 1 and a support rib 222 disposed parallel to the rotating shaft 1. At least one first support member 221 is evenly distributed between the end support members 21 along the length direction of the rotating shaft 1. At least three support ribs 222 are provided, and at least three support ribs 222 are evenly distributed around the end support members 21 and connected to the end support members 21. The end of the first support member 221 away from the rotating shaft 1 is connected to the inner side of the support rib 222, and the side of the support rib 222 away from the rotating shaft 1 is connected to the inner side of the first layer of threshing ribs 3. The first support member 221 provides secondary support for the support ribs 222, ensuring the structural stability of the corn threshing roller and preventing the support ribs 222 from becoming too long and bending after long-term use, which would affect the threshing effect.

[0049] A fourth embodiment of the internal support member 22, such as Figure 10 , Figure 11 As shown, the inner support member 22 includes a support plate 223, and there are at least three support plates 223. The support plates 223 are evenly arranged radially between the end support members 21 with the rotating shaft 1 as the center and are connected to the end support members 21. One side of the support plate 223 is connected to the rotating shaft 1, and the other side is connected to the inner side of the first layer of threshing ribs 3. At this time, the space 311 for material passage is a U-shaped material leakage cavity 2231 formed by two adjacent support plates 223 together with the first layer of threshing ribs 3, the rotating shaft 1, and the end support members 21, which is arranged along the length direction of the support plate 223. The material leakage cavity 2231 can temporarily store the threshed material. Support plates 223 are used as inner support members 22 to support the first layer of threshing ribs 3. Support plates 223 are not easily deformed during use and have better stability. To ensure the support effect of support plates 223 on the first layer of threshing ribs 3, at least 3 support plates 223 are required. The number of support plates 223 can be determined according to the size of the entire corn threshing roller. When the diameter of the corn threshing roller is 60mm, 4 support plates 223 can be used as inner support members 22. When the diameter of the corn threshing roller is 80mm, 5 support plates 223 can be used as inner support members 22. In addition, the outer edge of the support plates 223 can serve as a third-stage threshing surface 224 to thresh the corn cobs that have undergone first-stage and second-stage threshing again, thereby improving the net threshing rate and threshing speed.

[0050] A fifth embodiment of the internal support member 22, such as... Figure 12 , Figure 13As shown, the inner support member 22 includes a support plate 223, and at least three support plates 223 are provided. The support plates 223 are radially and evenly distributed between the end support members 21 with the rotating shaft 1 as the center and are connected to the end support members 21. The side of the support plate 223 near the rotating shaft 1 is provided with a gap 2232 for material passage between it and the rotating shaft 1. The side of the support plate 223 away from the rotating shaft 1 is connected to the inner side of the first layer of threshing ribs 3. This arrangement can not only ensure the support effect of the first layer of threshing ribs 3, but also allow the material to fall directly into the material collection chamber along the gap 2232 between the support plate 223 and the rotating shaft 1 without temporary storage, avoiding the situation where the material falls into the leakage chamber and cannot fall smoothly. In addition, the outer edge of the support plate 223 can serve as a third-stage threshing surface 224 to thresh the corn cobs that have been threshed by the first and second stages of threshing, thereby improving the net threshing rate and threshing speed.

[0051] The sixth embodiment with internal support member 22, such as Figure 14 , Figure 15 As shown, the rotating shaft 1 consists of two sections, each mounted on an end support 21 and extending away from the inner support 22. The inner support 22 includes at least three support plates 223. The support plates 223 are connected in pairs on one side and arranged radially. The connecting portion 2233 of the support plates 223 forms a concentric axis with the rotating shaft 1. The other side of the support plates 223 is connected to the inner side of the first layer of threshing ribs 3. The connection of at least three support plates 223 on one side can be achieved through welding or integral molding. The connecting portion 2233 of the support plates 223 forms a concentric axis with the rotating shaft 1 to ensure stable rotation of the corn threshing roller during rotation. The support plates 223 are arranged radially with the connecting portion 2233 as the center, and the other side of the support plates 223 is connected to the inner side of the first layer of threshing ribs 3. At this time, the space 311 for material passage is formed by two adjacent support plates. The V-shaped discharge chamber 2231, formed by the first layer of threshing ribs 3 and the end support member 21 along the length of the support plate 223, can temporarily store the threshed material. This allows the threshed corn kernels to fall directly into the discharge chamber 2231 for temporary storage, preventing them from getting stuck on the contact surface between the first layer of threshing ribs 3 and the support plate 223. This avoids the threshed particles being squeezed by other materials being threshed, which could cause the threshed particles to break. As the corn threshing roller rotates, the discharge chamber 2231 opens downwards, allowing the material temporarily stored in the discharge chamber 2231 to fall into the particle collection chamber, thereby reducing the breakage rate, ensuring the integrity of the material, and improving the overall quality of the threshed product. Furthermore, the V-shaped discharge chamber 2231 can use its inclined surface to accelerate the discharge of the threshed corn kernels, making it easy to empty the material stored in the discharge chamber 2231 in a timely manner for further storage.

[0052] Furthermore, such as Figure 18 , Figure 19 As shown, the corn threshing roller can also adopt a segmented design. The corn threshing roller also includes a threshing cylinder 8 disposed on the rotating shaft 1. The threshing cylinder 8 and the inner support member 22 are sequentially connected between the end support member 21. That is, the end support member 21 and the inner support member 22 described above are fixedly connected to the existing threshing cylinder 8 to form an integral mechanism for supporting the first layer of threshing ribs 3. The first layer of threshing ribs 3 are spirally wound on the integral mechanism, and the second layer of threshing ribs 4 are spirally wound on the outside of the first layer of threshing ribs 3 to form a threshing roller for corn threshing, so as to improve the threshing rate and threshing speed. It should be noted that when installing this corn threshing roller structure, the threshing cylinder 8 can be set close to the feed end, discharge end, or middle of the threshing chamber to achieve corn threshing. As the best embodiment, the threshing cylinder 8 is installed close to the discharge end of the threshing chamber so that the cavity between the end support 21 and the threshing cylinder 8 is located at the feed end of the threshing chamber. This ensures that when a large amount of threshing begins, there is still space 311 between the first layer of threshing ribs 3 and the rotating shaft 1 for material to pass through, so that the corn kernels after threshing will not be squeezed and broken.

[0053] This utility model also provides a corn threshing roller assembly, including a first threshing roller 5 and a second threshing roller 6. The first threshing roller 5 is a corn threshing roller as described above. The second threshing roller 6 is arranged parallel to one side of the first threshing roller 5. A threshing channel 7 for material passage is formed between the second threshing roller 6 and the first threshing roller 5. The second threshing roller 6 includes a second rotating shaft 61, an auxiliary threshing rib 63, and a second support mechanism 62. The second support mechanism 62 includes a second end support member 621 disposed at the end of the second rotating shaft 61. The auxiliary threshing rib 63 is disposed between the second end support member 621 with the rotating shaft 61 as the center. A space 311 for material passage is provided between the auxiliary threshing rib 63 and the second rotating shaft 61.

[0054] like Figures 20-21As shown, a corn threshing roller assembly is formed by arranging a first threshing roller 5 and a second threshing roller 6 in parallel on the frame. The first threshing roller 5 adopts the corn threshing roller described above, and the second end support 621 of the second threshing roller 6 adopts the end support 21 structure described above. It can be a circular plate, a square plate, or a cylindrical section. The arrangement of the auxiliary threshing ribs 63 can refer to the arrangement of the first layer of threshing ribs 3. They are spirally arranged between the second end supports 621 with the second rotating shaft 61 as the center, or evenly arranged around the second rotating shaft 61 in the circumference of the second end supports 621, so as to connect the two second end supports 621 and assist in threshing the corn as the threshing surface. The part of the auxiliary threshing ribs 63 located between the two second end supports 621 and the second rotating shaft 61 has a space 311 for material passage. A threshing channel 7 for material passage is formed between the second threshing roller 6 and the first threshing roller 5, through which the material to be threshed passes. The corn cob is placed between the two rollers. When the drive mechanism is activated, the first threshing roller 5 and the second threshing roller 6 rotate in the same direction, allowing the corn cob to move along the threshing channel 7 while being threshed. This ensures that the corn cob can move quickly along the threshing channel 7 to complete the threshing and avoid material blockage. At the same time, the second threshing roller 6 assists the first threshing roller 5 in threshing the material, improving the net threshing rate and threshing efficiency. The threshed material can fall not only through the space 311 formed between the first threshing rib 3 on the first threshing roller 5, the end support 21, and the rotating shaft 1 to the material collection chamber below, but also through the space 311 formed between the auxiliary threshing rib 63 on the second threshing roller 6, the second end support 621, and the rotating shaft 1 to the material collection chamber below. This prevents particles from being stuck between the two threshing rollers, which would cause them to be squeezed and broken when subsequent material enters the threshing channel, thus reducing the breakage rate and ensuring the integrity of the particles.

[0055] To ensure the stability of the auxiliary threshing rib 63 between the second end supports 621 and to prevent deformation during use that would affect the threshing effect, the second support mechanism 62 further includes a second inner support 622 disposed between the second end supports 621. The side of the second inner support 622 away from the second rotating shaft 61 is connected to the inner side of the auxiliary threshing rib 63. The second inner support 622 may adopt the structure of the inner support 22 described above.

[0056] To improve corn threshing efficiency and to be suitable for threshing corn cobs of different sizes, such as Figure 21 As shown, the diameter of the first threshing roller 5 is larger than the diameter of the second threshing roller 6. By installing two first threshing rollers 5 and second threshing rollers 6 with different diameters, threshing channels 7 of different sizes are formed to accommodate corn cobs of different diameters. The two corn threshing rollers work together to achieve multiple threshing of the material, thereby improving the net threshing rate and threshing efficiency.

[0057] The description of the specific embodiments is merely to aid in understanding the present invention and is not intended to limit the present invention. Those skilled in the art can make some modifications and variations based on the concept of the present invention, such as combining the above-described schemes with existing threshing rollers, or assembling the structures in the multiple schemes described above, etc. As long as the technical means do not depart from the concept and key points of the present invention, they are still within the protection scope of the present invention.

Claims

1. A corn threshing roller, comprising a rotating shaft (1), a first layer of threshing ribs (3), a second layer of threshing ribs (4), and a support mechanism (2) for supporting the first layer of threshing ribs (3), wherein the first layer of threshing ribs (3) is arranged on the support mechanism (2) with the rotating shaft (1) as the center, and the second layer of threshing ribs (4) is arranged on the outside of the first layer of threshing ribs (3); characterized in that The support mechanism (2) includes an end support (21) disposed at the end of the rotating shaft (1), and the first layer of threshing ribs (3) is disposed between the end support (21), and the inner side of the first layer of threshing ribs (3) has a space (311) for material to pass through.

2. A corn shelling roller as claimed in claim 1 wherein: The support mechanism (2) further includes an inner support (22) disposed between the end support members (21). One side of the inner support (22) is connected to the inner side of the first layer of threshing ribs (3), and the other side is connected to the rotating shaft (1).

3. A corn shelling roller as claimed in claim 2 wherein: The inner support member (22) includes a first support member (221) disposed on the rotating shaft (1), and at least one of the first support members (221) is evenly distributed between the end support members (21) along the length direction of the rotating shaft (1).

4. A corn shelling roller as claimed in claim 3 wherein: The first support member (221) is a rod or a plate arranged parallel to the end support member (21).

5. A corn shelling roller as defined in claim 2 wherein: The inner support member (22) includes a support rib (222) arranged parallel to the rotating shaft (1). There are at least three support ribs (222). The at least three support ribs (222) are evenly distributed around the end support member (21) and connected to the end support member (21).

6. A corn shelling roller as claimed in claim 5 wherein: The number of supporting ribs (222) is 3-5.

7. A corn shelling roller as defined in claim 2 wherein: The inner support member (22) includes a first support member (221) disposed on the rotating shaft (1) and a support rib (222) disposed parallel to the rotating shaft (1). At least one of the first support members (221) is evenly distributed between the end support members (21) along the length direction of the rotating shaft (1). There are at least 3 support ribs (222). The at least 3 support ribs (222) are evenly distributed around the end support member (21) and connected to the end support member (21). One end of the first support member (221) is connected to the inner side of the support rib (222), and one side of the support rib (222) is connected to the inner side of the first layer of threshing ribs (3).

8. A corn shelling roller as defined in claim 2 wherein: The inner support member (22) includes a support plate (223), and there are at least three support plates (223). The support plates (223) are evenly arranged radially between the end support members (21) with the rotating shaft (1) as the center and are connected to the end support members (21). One side of the support plate (223) is connected to the rotating shaft (1), and the other side is connected to the inner side of the first layer of threshing reinforcement (3).

9. A corn shelling roller as defined in claim 2 wherein: The inner support member (22) includes a support plate (223), and there are at least three support plates (223). The support plates (223) are evenly arranged radially between the end support members (21) with the rotating shaft (1) as the center and are connected to the end support members (21). The side of the support plate (223) close to the rotating shaft (1) is provided with a gap (2232) for material to pass through between it and the rotating shaft (1). The side of the support plate (223) away from the rotating shaft (1) is connected to the inner side of the first layer of threshing ribs (3).

10. A corn shelling roller as defined in claim 2 wherein: The rotating shaft (1) consists of two concentric sections. The rotating shaft (1) is respectively mounted on the end support (21) and extends in a direction away from the inner support (22). The inner support (22) includes at least three support plates (223). The support plates (223) are connected in pairs on one side and are radially distributed. The connecting part (2233) of the support plate (223) forms a concentric axis with the rotating shaft (1). The other side of the support plate (223) is connected to the inner side of the first layer of threshing ribs (3).

11. A corn threshing roller as described in any one of claims 2-10, characterized in that: It also includes a threshing cylinder (8) disposed on the rotating shaft (1), wherein the threshing cylinder (8) and the inner support (22) are sequentially connected between the end support (21).

12. A corn threshing roller assembly, characterized in that: The device includes a first threshing roller (5) and a second threshing roller (6). The first threshing roller (5) is a corn threshing roller as described in any one of claims 1-11. The second threshing roller (6) is arranged parallel to one side of the first threshing roller (5). A threshing channel (7) for material passage is formed between the second threshing roller (6) and the first threshing roller (5). The second threshing roller (6) includes a second rotating shaft (61), an auxiliary threshing rib (63), and a second support mechanism (62). The second support mechanism (62) includes a second end support member (621) disposed at the end of the second rotating shaft (61). The auxiliary threshing rib (63) is disposed between the second end support member (621) with the rotating shaft (1) as the center. There is a space (311) for material passage between the auxiliary threshing rib (63) and the second rotating shaft (61).

13. A corn threshing roller assembly as described in claim 12, characterized in that: The second support mechanism (62) further includes a second inner support (622) disposed between the second end support (621), wherein the side of the second inner support (622) away from the second pivot (61) is connected to the inner side of the auxiliary threshing bar (63).

14. A corn threshing roller assembly as described in claim 13, characterized in that: The diameter of the first threshing roller (5) is larger than the diameter of the second threshing roller (6).

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