Corn threshing roller and corn threshing roller assembly

Abstract

The invention discloses a corn threshing roller and a corn threshing roller assembly, belongs to the technical field of agricultural small threshers, and is mainly used for corn threshing. The corn threshing roller comprises a rotating shaft and a supporting mechanism, a first layer of threshing ribs are arranged on the supporting mechanism with the rotating shaft as the center, and a second layer of threshing ribs are arranged on the outer side of the first threshing ribs; the supporting mechanism comprises end supporting pieces arranged at the end of the rotating shaft, the first-layer threshing ribs are arranged between the end supporting pieces, and the inner sides of the first-layer threshing ribs are provided with spaces for materials to pass through; the invention further provides a corn threshing roller assembly which comprises a first threshing roller and a second threshing roller which are arranged in parallel, a threshing channel is formed between the first threshing roller and the second threshing roller, the first threshing roller is the corn threshing roller, and the second threshing roller comprises a second rotating shaft, a second supporting mechanism and auxiliary threshing ribs. The threshing efficiency and threshing efficiency can be improved, the breakage rate is reduced, and the threshing quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of small agricultural threshers, and in particular to a corn threshing roller and a corn threshing roller assembly for a corn thresher. Background Art

[0002] The threshing rollers used in existing corn threshers are often of a cylindrical structure, with threshing ribs arranged circumferentially on the cylindrical structure to thresh corn. Specifically, reference can be made to CN203840793U "Threshing Cylinder with Specific Double-Layer Threshing Ribs", which has two layers of threshing ribs on the surface of the threshing cylinder. The first layer of threshing ribs is arranged 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 rate through the synergistic effect of the double-layer ribs, and at the same time shortens the overall length of the threshing cylinder. However, it is found in actual use 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 layer of threshing ribs and the second layer of threshing ribs, the threshed corn kernels are relatively small and easily embedded in the above gaps and cannot be quickly discharged, resulting in the corn kernels remaining on the threshing cylinder. With the continuous entry of subsequent corn cobs to be threshed, the embedded corn kernels are squeezed and collided by the subsequent materials, resulting in an increase in the breakage rate, reducing the integrity of the threshed corn kernels, increasing the difficulty of equipment cleaning, affecting the efficiency of continuous operation, and unable to ensure the quality of the threshed corn kernels. Summary of the Invention

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

[0004] A corn threshing roller disclosed by the present invention includes 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 outside the first threshing ribs; the support mechanism includes end support members arranged at the ends of the rotating shaft, the first layer of threshing ribs is arranged between the end support members, and a space for the passage of materials is provided inside the first layer of threshing ribs.

[0005] Further, the support mechanism further includes inner support members arranged between the end support members. One side of the inner support members is connected to the inside of the first layer of threshing ribs, and the other side is connected to the rotating shaft.

[0006] As a preferred mode, the inner support member includes a first support member arranged on the rotating shaft, and at least one of the first support members is uniformly arranged between the end support members along the length direction of the rotating shaft.

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

[0008] As a preferred embodiment, the inner support member includes support ribs arranged parallel to the rotating shaft, and at least three support ribs are provided. At least three support ribs are evenly distributed circumferentially on the end support member and are connected to the end support member.

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

[0010] As a preferred embodiment, the inner support member includes a first support member arranged on the rotating shaft and support ribs arranged parallel to the rotating shaft. At least one first support member is evenly arranged between the end support members along the length direction of the rotating shaft. At least three support ribs are provided. At least three support ribs are evenly distributed circumferentially on the end support member and are connected to the end support member. One end of the first support member 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 member includes support plates, and at least three support plates are provided. The support plates are evenly distributed radially around the rotating shaft between the end support members and are connected to the end support member. One side of the support plate is connected to the rotating shaft, and the other side is connected to the inner side of the first layer of threshing ribs.

[0012] As a preferred embodiment, the inner support member includes support plates, and at least three support plates are provided. The support plates are evenly distributed radially around the rotating shaft between the end support members and are connected to the end support member. A gap for the material to pass through is provided between one side of the support plate close to the rotating shaft and the rotating shaft. The other side of the support plate far from the rotating shaft is connected to the inner side of the first layer of threshing ribs.

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

[0014] As a preferred embodiment, it further includes a threshing cylinder arranged on the rotating shaft. The threshing cylinder and the inner support member are sequentially connected and arranged between the end support members.

[0015] The present invention also provides a corn threshing roller assembly, which includes a first threshing roller and a second threshing roller. The first threshing roller adopts the above-mentioned corn threshing roller. The second threshing roller is arranged in parallel on one side of the first threshing roller. A threshing channel for the passage of materials is formed between the second threshing roller and the first threshing roller. The second threshing roller includes a second rotating shaft, auxiliary threshing ribs and a second supporting mechanism. The second supporting mechanism includes a second end supporting member arranged at the end of the second rotating shaft. The auxiliary threshing ribs are arranged between the second end supporting members with the rotating shaft as the center. There is a space for the passage of materials between the auxiliary threshing ribs and the second rotating shaft.

[0016] As a preferred embodiment, the second supporting mechanism further includes a second inner supporting member arranged between the second end supporting members. The side of the second inner supporting member away from the second rotating shaft is connected to the inner side of the auxiliary threshing ribs.

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

[0018] The beneficial effect of the present invention is that by setting the end supporting member as the supporting mechanism of the first layer of threshing ribs, a cavity, i.e., a space for the passage of materials, exists inside the first layer of threshing ribs. Thus, the corn kernels directly fall into the space for the passage of materials after being threshed by the first layer of threshing ribs and the second layer of threshing ribs, and then drop into the material collection chamber below, so as to avoid the threshed particles being stuck at the connection between the supporting mechanism and the first layer of threshing ribs, being squeezed with other materials being threshed, causing the threshed particles to break, reducing the breakage rate, ensuring the integrity of the materials, and improving the overall quality of the threshing products. Description of the Drawings

[0019] Figure 1 : Schematic structural diagram of the corn threshing roller;

[0020] Figure 2 : Schematic structural diagram of the second type of corn threshing roller;

[0021] Figure 3 : Schematic structural diagram of the third type of corn threshing roller;

[0022] Figure 4 : Schematic structural diagram of the fourth type of corn threshing roller;

[0023] Figure 5 : Schematic structural diagram of the fifth type of corn threshing roller;

[0024] Figure 6 : Schematic structural diagram of the corn threshing roller using the first supporting member and the supporting ribs as the inner supporting members;

[0025] Figure 7: Schematic structural diagram of using support ribs in combination with a first support member as an inner support member;

[0026] Figure 8 : Schematic structural diagram of using support ribs as an inner support member;

[0027] Figure 9 : Schematic structural diagram of using a rod member as the first support member in combination with support ribs as an inner support member;

[0028] Figure 10 : Schematic structural diagram of the first type of corn threshing roller using a support plate as an inner support member;

[0029] Figure 11 : Figure 10 Schematic structural diagram of the inner support member in;

[0030] Figure 12 : Schematic structural diagram of the second type of corn threshing roller using a support plate as an inner support member;

[0031] Figure 13 : Figure 12 Schematic structural diagram of the inner support member in;

[0032] Figure 14 : Schematic structural diagram of the third type of corn threshing roller using a support plate as an inner support member;

[0033] Figure 15 : Figure 14 Schematic structural diagram of the inner support member in;

[0034] Figure 16 : Schematic structural diagram of a material leakage cavity in a U shape;

[0035] Figure 17 : Schematic structural diagram of a material leakage cavity in a V shape;

[0036] Figure 18 : Schematic structural diagram of a segmented corn threshing roller;

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

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

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

[0040] Reference numerals: 1 - rotating shaft; 2 - supporting mechanism; 21 - end supporting member; 22 - inner supporting member; 221 - first supporting member; 222 - supporting rib; 223 - supporting plate; 2231 - material leakage cavity; 2232 - gap; 2233 - connecting portion; 224 - tertiary threshing surface; 3 - first layer of threshing ribs; 311 - space for material passage; 4 - second layer of threshing ribs; 5 - first threshing roller; 6 - second threshing roller; 61 - second rotating shaft; 62 - second supporting mechanism; 621 - second end supporting member; 622 - second inner supporting member; 63 - auxiliary threshing rib; 7 - threshing channel; 8 - threshing cylinder. Detailed implementation manner

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

[0042] A corn threshing roller provided by the present invention is mainly used for corn threshing, and includes a rotating shaft 1, a first layer of threshing ribs 3, a second layer of threshing ribs 4, and a supporting mechanism 2 for supporting the first layer of threshing ribs 3. The first layer of threshing ribs 3 is arranged on the supporting mechanism 2 with the rotating shaft 1 as the center. The second layer of threshing ribs 4 is arranged outside the first threshing ribs 3. The supporting mechanism 2 includes an end supporting member 21 arranged at the end of the rotating shaft 1. The first layer of threshing ribs 3 is arranged between the end supporting members 21, and a space 311 for material passage is provided inside the first layer of threshing ribs 3.

[0043] As Figures 1 - 15 shown, the corn threshing roller includes a rotating shaft 1. A bearing is provided on the rotating shaft 1, and it is connected to a bearing seat on the frame through the bearing to install the corn threshing roller in the threshing bin of the frame, and it is driven by a driving mechanism such as a motor or a diesel engine to rotate for material threshing. A supporting mechanism 2 for supporting the first layer of threshing ribs 3 is provided on the rotating shaft 1. The first layer of threshing ribs 3 is arranged on the supporting mechanism 2, and the second layer of threshing ribs 4 is arranged outside the first layer of threshing ribs 3. The second layer of threshing ribs 4 can be as Figure 1 shown, one second layer of threshing ribs 4 is spirally wound around the outside of the first layer of threshing ribs 3; or it can be as Figure 2 、 Figure 3 shown, one, two or more second layer of threshing ribs are obliquely arranged outside the first layer of threshing ribs, and both ends thereof are fixedly connected to the end supporting member 21. During operation, the second layer of threshing ribs 4 first contacts the corn cob to perform primary threshing on the corn kernels, and then the first layer of threshing ribs 3 performs secondary threshing on the corn cob to achieve corn threshing. To avoid that during the corn threshing process, the threshed corn kernels are stuck between the first layer of threshing ribs 3 and the supporting mechanism 2, causing extrusion damage to the corn kernels. As Figure 1 shown, the supporting mechanism 2 includes an end supporting member 21 arranged at the end of the rotating shaft 1. The first layer of threshing ribs 3 is spirally wound around between the two end supporting members 21 with the axis of the rotating shaft 1 as the center, or it can also be as Figure 2As shown, the first layer of threshing ribs 3 is horizontally and uniformly arranged circumferentially around the axis of the rotating shaft 1 between the two end supports. While connecting the two end supports, it serves as a threshing surface to thresh the corn; it can also be like Figure 3 As shown, the first layer of threshing ribs 3 is spirally wound around between the two end supports 21 with the axis of the rotating shaft 1 as the center. Its helix angle is large. Multiple threshing ribs are wound around between the two end supports 21 and are fixedly connected to the circumference of the end supports 21; it can also be like Figure 4 As shown, the first layer of threshing ribs 3 is a perforated shell wound around between the two end supports 21. The shape of the openings on the shell can be circular, elliptical, triangular, or diamond-shaped, etc. It only needs to ensure that there is a space 311 for the material to pass between the shell and the rotating shaft. A second layer of threshing ribs 4 is wound outside the first layer of threshing ribs 3. The number and direction of the second layer of threshing ribs 4 are set according to actual requirements; it can also be like Figure 5 As shown, the first layer of threshing ribs 3 is a mesh structure wound around between the two end supports 21. It only needs to ensure that there is an empty space 311 for the material to pass between the mesh structure and the rotating shaft. A second layer of threshing ribs 4 is wound outside the first layer of threshing ribs 3. The number and direction of the second layer of threshing ribs 4 are set according to actual requirements; so that there is a space 311 for the material to pass between the rotating shaft 1 section between the two end supports 21 and the first layer of threshing ribs 3. The above-mentioned end supports 21 are coaxially arranged with the rotating shaft 1 to ensure the stability of the entire corn threshing roller during rotation. By setting the end supports 21 as the support mechanism for the first layer of threshing ribs 3, there is a cavity, that is, a space 311 for the material to pass, between the first layer of threshing ribs 3 and the rotating shaft 1. Furthermore, the corn kernels after being threshed by the first layer of threshing ribs 3 and the second layer of threshing ribs 4 directly fall into the space 311 for the material to pass and drop into the material collection chamber below, so as to avoid the threshed particles being stuck at the connection between the support mechanism 2 and the first layer of threshing ribs 3, being squeezed with 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 threshing product. The above-mentioned end supports 21 can adopt, for example Figure 1 As shown in the circular plate, or a square plate can also be used. The diagonal length of the square plate is the same as the circular diameter of the cross-section of the first layer of threshing ribs 3. As long as the support strength is ensured, a cylinder can also be used as the end support 21, but it is necessary to ensure that there is a space 311 for the material to pass inside the part of the first layer of threshing ribs 3 wound between the two cylinders; when using a circular plate as the end support, it can not only play a supporting role for the first layer of threshing ribs 3, but also play a role in closing the separated material to prevent the material from splashing out of the threshing bin.

[0044] The space 311 for the material to pass inside the above-mentioned first layer of threshing ribs 3 includes but is not limited to the following three methods. Embodiment 1 is likeFigure 1 As shown, the rotating shaft 1 is disposed through between 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. At this time, the space 311 for the material to pass through is the cavity between the first threshing rib 3 and the two end supports 21; Embodiment 3 is as Figure 15 As shown, the rotating shaft 1 is two concentric shafts disposed in two sections. Each section of the rotating shaft 1 is respectively disposed on the end support 21 and extends in a direction away from the inner support. And a support plate 233 is provided between the two end supports 21. One side of at least three support plates 223 is connected to each other in pairs, and the connecting portion 2233 of the support plate 223 forms a concentric shaft with the rotating shaft 1. At this time, the space 311 for the material to pass through is the cavity formed by enclosing the first threshing rib 3, the two end supports 21 and the connecting portion 2233 of the support plate 223.

[0045] As Figures 1 - 5 As shown, since there is no contact at all between the part of the first threshing rib 3 disposed between the two end supports 21 and the rotating shaft 1, it is easy to deform during use, affecting the threshing effect. As Figures 6 - 17 As shown, the support mechanism 2 further includes an inner support 22 disposed between the end supports 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 providing the inner support 22 between the first threshing rib 3 and the rotating shaft 1 to support the part of the first threshing rib 3 located between the two end supports 21, it is ensured that the first threshing rib 3 will not deform during the material threshing process. And it should be noted that even if the inner support 22 is provided, there is still a space 331 for the material to pass through between the first threshing rib 3 and the rotating shaft 1 to prevent the threshed particles from being stuck at the connection between the support mechanism 2 and the first threshing rib 3, being squeezed with 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 threshing product.

[0046] The first embodiment of providing the inner support 22, such as Figure 6 、 Figure 7As shown, the inner support member 22 includes a first support member 221 provided on the rotating shaft 1, and at least one of the first support members 221 is uniformly arranged between the end support members 21 along the length direction of the rotating shaft 1; by providing the first support member 221 on the rotating shaft 1, that is, one end of the first support member 221 is connected to the rotating shaft 1, and one 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, so as to avoid the first layer of threshing ribs 3 being bent and deformed after long-term use; the number and arrangement 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 Figure 3 shown, the above-mentioned first support member 221 can be a rod or a plate member 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 ribs 3.

[0047] The second embodiment of setting the inner support member 22 is as Figures 6 - 9 shown, the inner support member 22 includes support ribs 222 arranged parallel to the rotating shaft 1, at least 3 support ribs 222 are provided, and at least 3 support ribs 222 are uniformly arranged on the circumference of the end support member 21 and are connected to the end support member 21; when the support ribs 222 are used as the inner support member 22, the space 311 for the material to pass through 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 and arranging them between the two end support members 21, the material is convenient to obtain, and existing steel bars can be directly welded between the end support members 21. To ensure the support effect of the support ribs 222 on the first layer of threshing ribs 3, at least 3 support ribs 222 are arranged on the end support member 21 at intervals along the circumference of the end support member 21. After threshing, the material does not need to contact any other components and directly falls into the particle collection chamber by gravity, and will not adhere to the outer surface of the support mechanism and be squeezed with other materials being threshed, resulting in the crushing of the threshed particles; in addition, the arrangement angles of the support ribs 222 with the first layer of threshing ribs 3 and the second layer of threshing ribs 4 are different, and their outer edges can be used as the third-stage threshing surface 224 to thresh the corn cobs that have undergone primary threshing and secondary threshing again, improving the net threshing rate and threshing speed of the material. As a preferred method, to avoid the weight of the entire corn threshing roller increasing due to too many support ribs 222 being provided, the support ribs 222 are 3 - 5 in number.

[0048] The third embodiment of setting the inner support member 22 is as Figures 6 - 9As shown, the inner support member 22 includes a first support member 221 disposed on the rotating shaft 1 and support ribs 222 arranged parallel to the rotating shaft 1. At least one of the first support members 221 is uniformly arranged between the end support members 21 along the length direction of the rotating shaft 1. At least 3 support ribs 222 are provided, and at least 3 support ribs 222 are uniformly arranged in the circumferential direction of the end support members 21 and are connected to the end support members 21. One 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 rib 222 to ensure the structural stability of the corn threshing roller, avoid the support rib 222 being too long and bending during long-term use, and affect the threshing effect.

[0049] The fourth embodiment of the inner support member 22 is provided, as Figure 10 、 Figure 11 As shown, the inner support member 22 includes support plates 223. At least 3 support plates 223 are provided. The support plates 223 are radially and uniformly arranged 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 the material to pass through is a U-shaped material leakage cavity 2231 formed by two adjacent support plates 223, the first layer of threshing ribs 3, the rotating shaft 1, and the end support members 21 along the length direction of the support plate 223. The material leakage cavity 2231 can temporarily store the threshed material. Using the support plate 223 as the inner support member 22 to support the first layer of threshing ribs 3, the support plate 223 is not easily deformed during use and has better stability. To ensure the support effect of the support plate 223 on the first layer of threshing ribs 3, at least 3 support plates 223 are provided. 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 60 mm, 4 support plates 223 can be used as the inner support member 22. When the diameter of the corn threshing roller is 80 mm, 5 support plates 223 can be used as the inner support member 22. In addition, the outer edge of the support plate 223 can serve as a third-stage threshing surface 224 to re-thresh the corn cobs that have undergone primary threshing and secondary threshing, improving the net threshing rate and threshing speed of the material.

[0050] The fifth embodiment of the inner support member 22 is provided, as Figure 12 、 Figure 13As shown in the figure, the inner support member 22 includes a support plate 223. There are at least three support plates 223. The support plates 223 are radially and evenly arranged between the end support members 21 with the rotating shaft 1 as the center and are connected to the end support members 21. A gap 2232 for the material to pass through is provided between the side of the support plate 223 close to the rotating shaft 1 and the rotating shaft 1. The side of the support plate 223 far from the rotating shaft 1 is connected to the inner side of the first layer of threshing ribs 3. Such a setting can not only ensure the supporting effect on the first layer of threshing ribs 3, but also enable the material to directly fall 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 that the material falls into the leakage cavity and cannot fall smoothly. In addition, the outer edge of the support plate 223 can serve as the third-stage threshing surface 224 to thresh the corn cobs that have undergone primary threshing and secondary threshing again, improving the net threshing rate of the material and the threshing speed.

[0051] The sixth embodiment of setting the inner support member 22 is as Figure 14 , Figure 15 As shown in the figure, the rotating shaft 1 is in two sections. The rotating shaft 1 is respectively arranged on the end support members 21 and extends in a direction away from the inner support member 22. The inner support member 22 includes at least three support plates 223. One side of the support plates 223 is connected pairwise and is radially distributed. 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. One side of at least three support plates 223 is connected pairwise, which can be specifically made by welding connection or integral molding. And the connecting portion 2233 of the support plates 223 forms a concentric axis with the rotating shaft 1 to ensure that the corn threshing roller can rotate stably during the rotation process. The support plates 223 are radially arranged 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 the material to pass through is a V-shaped leakage cavity 2231 formed by two adjacent support plates 223, the first layer of threshing ribs 3, and the end support members 21 along the length direction of the support plate 223. The leakage cavity 2231 can temporarily store the threshed material. The threshed corn kernels can directly fall into the leakage cavity 2231 for temporary storage, and will not be stuck on the contact surface between the first layer of threshing ribs 3 and the support plate 223, avoiding the extrusion of the threshed particles and other materials being threshed, resulting in the breakage of the threshed particles. The leakage cavity 2231 rotates with the corn threshing roller so that its opening faces downward, so that the material temporarily stored in the leakage cavity 2231 can fall into the particle collection chamber, thereby reducing the breakage rate, ensuring the integrity of the material, and improving the overall quality of the threshing product. And the V-shaped leakage cavity 2231 can utilize the inclined plane to accelerate the discharge of the threshed corn kernels, facilitating the timely emptying of the material stored in the leakage cavity 2231 for re-storage.

[0052] Furthermore, asFigure 18 , Figure 19 As shown, the corn threshing roller can also adopt a segmented design. The corn threshing roller further includes a threshing cylinder 8 arranged on the rotating shaft 1, and the threshing cylinder 8 and the inner support member 22 are sequentially connected and arranged between the end support members 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 overall mechanism for supporting the first layer of threshing ribs 3. The first layer of threshing ribs 3 is spirally wound around this overall mechanism, and the second layer of threshing ribs 4 is spirally wound outside the first layer of threshing ribs 4 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 the corn threshing roller with this structure, the threshing cylinder 8 can be arranged at the feeding end of the threshing bin, the discharging end of the threshing bin, or the middle of the threshing bin of the entire corn threshing roller to achieve corn threshing. As the best embodiment, the threshing cylinder 8 is installed near the discharging end of the threshing bin, so that the cavity existing between the end support member 21 and the threshing cylinder 8 is located at the feeding end of the threshing bin, to ensure that when a large amount of threshing starts at the beginning, there is still a space 311 for the material to pass between the first layer of threshing ribs 3 and the rotating shaft 1, to ensure that the threshed corn kernels will not be squeezed and broken.

[0053] The present invention also provides a corn threshing roller assembly, including a first threshing roller 5 and a second threshing roller 6. The first threshing roller 5 adopts the corn threshing roller described above. The second threshing roller 6 is arranged in parallel on one side of the first threshing roller 5. A threshing channel 7 for the material to pass through 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, auxiliary threshing ribs 63, and a second support mechanism 62. The second support mechanism 62 includes a second end support member 621 arranged at the end of the second rotating shaft 61. The auxiliary threshing ribs 63 are arranged between the second end support members 621 with the rotating shaft 1 as the center. There is a space 311 for the material to pass through between the auxiliary threshing ribs 63 and the second rotating shaft 61.

[0054] As Figures 20 - 21As shown in the figure, by arranging the first threshing roller 5 and the second threshing roller 6 in parallel on the frame to form a corn threshing roller assembly, the first threshing roller 5 adopts the corn threshing roller described above, and the second end support member 621 of the second threshing roller 6 adopts the structure of the end support member 21 described above, which can be a circular plate, a square plate or a cylindrical section. The layout method of the auxiliary threshing ribs 63 can refer to the layout method of the first layer of threshing ribs 3, and is spirally arranged between the second end support members 621 with the second rotating shaft 61 as the center or evenly arranged in the circumferential direction of the second end support members 621 with the second rotating shaft 61 as the center. While connecting the two second end support members 621, it serves as a threshing surface to assist in threshing the corn; so that there is a space 311 for the material to pass through between the part of the auxiliary threshing ribs 63 arranged between the two second end support members 621 and the second rotating shaft 61; a threshing channel 7 for the material to pass through is formed between the second threshing roller 6 and the first threshing roller 5. The corn cob to be threshed is placed between the two. When the driving mechanism is started to drive the first threshing roller 5 and the second threshing roller 6 to rotate in the same direction, the corn cob can move along the threshing channel 7 while being threshed, so that the corn cob can quickly move along the threshing channel 7 to complete threshing and avoid material jamming; 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 of the material; the threshed material can not only fall from the space 311 for the material to pass through formed between the first layer of threshing ribs 3 on the first threshing roller 5, the end support member 21 and the rotating shaft 1 to the material collection chamber below, but also fall from the space 311 for the material to pass through formed between the auxiliary threshing ribs 63 on the second threshing roller 6, the second end support member 621 and the rotating shaft 1 to the material collection chamber below, avoiding particles staying between the two threshing rollers, resulting in extrusion and breakage when the subsequent material enters the threshing channel, reducing the breakage rate and ensuring the integrity of its particles.

[0055] To ensure the stability of the auxiliary threshing ribs 63 arranged between the second end support members 621 and prevent it from deforming during use and affecting the threshing effect; the second support mechanism 62 further includes a second inner support member 622 arranged between the second end support members 621, and the side of the second inner support member 622 away from the second rotating shaft 61 is connected to the inner side of the auxiliary threshing ribs 63; the second inner support member 622 can adopt the structure of the inner support member 22 described above.

[0056] To improve the corn threshing efficiency and be applicable to threshing corn cobs of different sizes, as Figure 21 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 to form threshing channels 7 with different sizes, it is suitable for threshing corn cobs with different diameters, and the two corn threshing rollers working together can realize multiple threshings of the material, improving the net threshing rate and threshing efficiency.

[0057] The description of the understanding of the specific implementation manners is only for helping to understand the present invention, rather than for limiting the present invention. Those skilled in the art can all make some modifications and variations by using the idea of the present invention. For example, splicing the above-described solution with the existing threshing rollers, or assembling the structures in the above-described multiple solutions, etc. As long as their technical means do not depart from the idea 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). 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 outside the first layer of threshing ribs (3). It is characterized in that: The support mechanism (2) includes end support members (21) arranged at the ends of the rotating shaft (1). The first layer of threshing ribs (3) is arranged between the end support members (21), and a space (311) for the material to pass through is provided inside the first layer of threshing ribs (3).

2. The corn threshing roller according to claim 1, characterized in that: The support mechanism (2) further includes an inner support member (22) arranged between the end support members (21). One side of the inner support member (22) is connected to the inside of the first layer of threshing ribs (3), and the other side is connected to the rotating shaft (1).

3. The corn threshing roller according to claim 2, characterized in that: The inner support member (22) includes a first support member (221) arranged on the rotating shaft (1). At least one of the first support members (221) is evenly arranged along the length direction of the rotating shaft (1) between the end support members (21).

4. The corn threshing roller according to claim 3, characterized in that: The first support member (221) is a rod or a plate member arranged parallel to the end support member (21).

5. The corn threshing roller according to claim 2, characterized in that: The inner support member (22) includes support ribs (222) arranged parallel to the rotating shaft (1). At least 3 support ribs (222) are provided. At least 3 support ribs (222) are evenly distributed circumferentially around the end support members (21) and are connected to the end support members (21).

6. The corn threshing roller according to claim 5, characterized in that: The number of the support ribs (222) is 3 - 5.

7. The maize threshing roller according to claim 2, wherein: The inner support member (22) includes a first support member (221) arranged on the rotating shaft (1) and support ribs (222) arranged parallel to the rotating shaft (1). At least one of the first support members (221) is evenly arranged along the length direction of the rotating shaft (1) between the end support members (21). At least 3 support ribs (222) are provided. At least 3 support ribs (222) are evenly distributed circumferentially around the end support members (21) and are connected to the end support members (21). One end of the first support member (221) is connected to the inside of the support ribs (222), and one side of the support ribs (222) is connected to the inside of the first layer of threshing ribs (3).

8. The corn threshing roller according to claim 2, wherein: The inner support member (22) includes support plates (223). At least 3 support plates (223) are provided. The support plates (223) are evenly arranged radially around the rotating shaft (1) between the end support members (21) and are connected to the end support members (21). One side of the support plates (223) is connected to the rotating shaft (1), and the other side is connected to the inside of the first layer of threshing ribs (3).

9. The corn threshing roller according to claim 2, characterized in that: The inner support member (22) includes a support plate (223). There are at least three support plates (223). The support plates (223) are radially and evenly arranged between the end support members (21) with the rotating shaft (1) as the center and are connected to the end support members (21). A gap (2232) for the material to pass through is provided between one side of the support plate (223) close to the rotating shaft (1) and the rotating shaft (1). The other 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 threshing roller according to claim 2, characterized in that: The rotating shaft (1) has two sections and is a concentric shaft. The rotating shaft (1) is respectively arranged on the end support members (21) and extends in a direction away from the inner support member (22). The inner support member (22) includes at least three support plates (223). One side of the support plates (223) is connected pairwise and is radially distributed. The connecting part (2233) of the support plates (223) forms a concentric shaft 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).

11. A corn threshing roller according to any one of claims 2-10, characterized in that: It further includes a threshing cylinder (8) arranged on the rotating shaft (1). The threshing cylinder (8) and the inner support member (22) are sequentially connected and arranged between the end support members (21).

12. A corn threshing roller assembly, characterized in that: It includes a first threshing roller (5) and a second threshing roller (6). The first threshing roller (5) adopts the corn threshing roller as described in any one of claims 1-11. The second threshing roller (6) is arranged in parallel on one side of the first threshing roller (5). A threshing channel (7) for the material to pass through 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), auxiliary threshing ribs (63), and a second support mechanism (62). The second support mechanism (62) includes a second end support member (621) arranged at the end of the second rotating shaft (61). The auxiliary threshing ribs (63) are arranged between the second end support members (621) with the rotating shaft (1) as the center. A space (311) for the material to pass through is provided between the auxiliary threshing ribs (63) and the second rotating shaft (61).

13. A corn threshing roller assembly according to claim 12, characterized in that: The second support mechanism (62) further includes a second inner support member (622) arranged between the second end support members (621). The side of the second inner support member (622) away from the second rotating shaft (61) is connected to the inner side of the auxiliary threshing ribs (63).

14. A corn threshing roller assembly according to 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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