Harvester axial flow roller with adjustable and replaceable threshing module
By installing an adjustable threshing module and shims on the axial flow drum of a combine harvester, the problem of the limited applicability of threshing drums in the prior art has been solved, achieving efficient threshing of corn and long-stalk crops, reducing the breakage rate, and expanding the scope of application.
Patent Information
- Application Number
- CN202520433460.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing combine harvester threshing drums are typically only suitable for a single type of crop and cannot be switched between different crops, thus limiting their applicability.
An adjustable and replaceable threshing module axial flow drum for harvesters was designed. By setting a threshing module seat, threshing spikes, a threshing module, and a gasket on the drum body, the threshing mode can be switched by installing and removing the gasket. It is suitable for threshing corn and long-stalk crops, and reduces the breakage rate of corn and straw respectively.
It enables flexible adaptation to different crops, reduces the breakage rate of corn and long-stalk crops, expands the applicable range of threshing, and improves the efficiency and flexibility of crop harvesting.
Smart Images
Figure CN223829972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of combine harvesters, and more particularly to a harvester axial flow drum with an adjustable and replaceable threshing module. Background Technology
[0002] The threshing drum is a key component of a combine harvester, primarily used to separate the grains from the stalks of harvested crops (such as corn, wheat, and millet). Through its rotational motion, the threshing drum uses its threshing modules or threshing teeth to rub and beat the crops, thus achieving efficient grain separation. This process not only improves harvesting efficiency but also reduces manual labor intensity, making it an important part of modern agricultural mechanization.
[0003] Threshing modules are suitable for threshing corn, and their rubbing effect prevents the corn from breaking. Threshing spikes are suitable for threshing long-stalk crops, reducing the breakage rate of the stalks. However, existing combine harvesters typically only use one of these two types of threshing components on their threshing drums: threshing modules or threshing spikes. This design is usually only suitable for threshing a single type of crop and does not have the function of switching between different crops. Utility Model Content
[0004] In view of the problem that the existing technology is only applicable to threshing operations for a single type of crop, the purpose of this utility model is to provide a harvester axial flow drum with an adjustable and replaceable threshing module.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A harvester axial flow drum with an adjustable and replaceable threshing module includes a frustum-shaped feeding section 1 and a cylindrical drum section 2. Spiral blades 3 are connected to the outer wall of the feeding section 1. The drum section 2 is characterized by having multiple threshing components 4 connected to its outer wall. Each threshing component 4 includes a threshing module seat 41, threshing spikes 42, a threshing module 43, and a gasket 44. The bottom end of the threshing module seat 41 is connected to the outer wall of the drum section 2. The threshing spikes 42 are mounted on the side wall of the threshing module seat 41. The gasket 44 is detachably mounted between the threshing module 43 and the threshing module seat 41.
[0007] Furthermore, the threshing module base 41 includes two side plates 411 and a first bending plate 412, the first bending plate 412 being connected to the top and front ends of the two side plates 411.
[0008] Furthermore, the threshing nails 42 of any threshing component 4 are bolted to a side plate 411 of the threshing component 4.
[0009] Furthermore, the threshing module 43 includes a second bending plate 431 and a plurality of protrusions 432, the plurality of protrusions 432 being connected to the top of the second bending plate 431; the bottom of the second bending plate 431 is matched with the top of the first bending plate 412.
[0010] Furthermore, the bottom of the gasket 44 matches the top of the first bending plate 412; the top of the gasket 44 matches the bottom of the threshing module 43.
[0011] Furthermore, the threshing module 43, the gasket 44, and the threshing module base 41 are connected by bolts.
[0012] Furthermore, the cylinder body 2 includes a threshing section 21, a separating section 22, and a straw-removing section 23 in sequence along the flow direction of the crop, and a plurality of the threshing components 4 are distributed in a spiral shape on the threshing section 21;
[0013] It also includes separation spikes 5 and grass-draining plates 6, with multiple separation spikes 5 connected to the separation section 22 and multiple grass-draining plates 6 connected to the grass-draining section 23.
[0014] Furthermore, the plurality of the separating spikes 5 are spirally distributed on the separating section 22.
[0015] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:
[0016] (1) The threshing component of this utility model includes a threshing module base, threshing spikes, a threshing module, and a gasket. The threshing module and the gasket are detachably installed on the threshing module base, with the gasket positioned between the threshing module and the gasket. When the gasket is installed, the protrusions on the threshing module are flush with the threshing spikes, suitable for corn threshing, providing a kneading effect and reducing breakage. When the gasket is not installed, the threshing spikes protrude above the threshing module, suitable for threshing long-stalk crops such as wheat and millet, reducing the straw breakage rate and facilitating straw recycling and baling. Compared to existing technologies, this utility model is applicable to a wider range of crops requiring threshing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of an adjustable and replaceable axial flow drum for a harvester, according to the present invention.
[0018] Figure 2 This is a schematic diagram of the first assembly state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0019] Figure 3 This is a schematic diagram of the first assembly state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0020] Figure 4 This is a top view of the first assembled state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0021] Figure 5 This is a side view of the first assembled state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0022] Figure 6 This is a schematic diagram of the second assembly state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0023] Figure 7 This is a schematic diagram of the second assembly state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0024] Figure 8 This is a top view of the second assembled state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0025] Figure 9 This is a side view of the second assembled state of the threshing component of the axial flow drum of a harvester, which is an adjustable and replaceable threshing module according to this utility model.
[0026] Figure 10 This is a schematic diagram of the structure of the threshing module seat and threshing spikes of an adjustable and replaceable axial flow drum for a harvester, according to this utility model.
[0027] Figure 11 This is a schematic diagram of the structure of the gasket of the axial flow drum of a harvester with adjustable and replaceable threshing module according to this utility model.
[0028] In the attached diagram: 1. Feeding section; 2. Cylinder body; 21. Threshing section; 22. Separation section; 23. Straw discharge section; 3. Spiral blade; 4. Threshing component; 41. Threshing module seat; 411. Side plate; 412. First bending plate; 413. First through hole; 414. Second through hole; 42. Threshing nail tooth; 43. Threshing module; 431. Second bending plate; 432. Protrusion; 44. Gasket; 5. Separation nail tooth; 6. Straw discharge plate. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.
[0030] Please refer to Figures 1 to 11As shown, a harvester axial flow drum with an adjustable and replaceable threshing module is illustrated. It includes a frustum-shaped feeding section 1 and a cylindrical drum section 2. Spiral blades 3 are connected to the outer wall of the feeding section 1, and multiple threshing components 4 are connected to the outer wall of the drum section 2. Each threshing component 4 includes a threshing module seat 41, threshing spikes 42, a threshing module 43, and a gasket 44. The bottom end of the threshing module seat 41 is connected to the outer wall of the drum section 2. The threshing spikes 42 are mounted on the side wall of the threshing module seat 41. The gasket 44 is detachably mounted between the threshing module 43 and the threshing module seat 41.
[0031] Furthermore, in a preferred embodiment, the tip of the threshing nail 42 is narrower than the tip of the threshing module 43.
[0032] Furthermore, in a preferred embodiment, the threshing nail 42 is elongated and plate-shaped, and the two corners at the top of the threshing nail 42 are rounded.
[0033] Furthermore, in a preferred embodiment, when the threshing module 43 is directly installed on the threshing module seat 41, the top of the threshing teeth 42 is higher than the top of the threshing module 43, relatively increasing the threshing space. This allows the crop to pass through the threshing section 21 more quickly, making it suitable for threshing long-stalk crops such as wheat, millet, rice, and soybeans. Compared to using the pad 44, this reduces the straw breakage rate, making it easier to collect and bale the straw. When the pad 44 is installed between the threshing module 43 and the threshing module seat 41, the top of the threshing module 43 is flush with the top of the threshing teeth 42. Since the top of the threshing module 43 is relatively wide, it is more suitable for threshing corn, providing a kneading effect. Compared to threshing directly with the threshing teeth 42, this reduces the corn breakage rate. Therefore, this invention can switch between threshing corn and long-stalk crops by installing or removing the pad 44.
[0034] Furthermore, in a preferred embodiment, the threshing module seat 41 includes two side plates 411 and a first bending plate 412. The first bending plate 412 is connected to the top and front end of the two side plates 411. The seat with a plate-like structure can save materials relatively. The threshing module seat 41 is welded to the cylinder body 2.
[0035] Furthermore, in a preferred embodiment, the threshing teeth 42 of any threshing component 4 are bolted to a side plate 411 of the threshing component 4. The threshing teeth 42 are bolted to the side plate 411, which facilitates replacement when the threshing teeth 42 are severely worn.
[0036] Furthermore, in a preferred embodiment, the threshing teeth 42 are bolted to the side plate 411, which also facilitates the adjustment of the angle of the threshing teeth 42. When the threshing module 43 is directly installed on the threshing module base 41, the distance between the threshing teeth 42 and the tile plate can be adjusted by adjusting the angle of the threshing teeth 42, thereby adapting to the threshing work of different crops.
[0037] Furthermore, in a preferred embodiment, without installing the threshing nails 42, the height of the threshing module 43 can be adjusted by installing or removing the shims 44, thereby adjusting the distance between the threshing module 43 and the tile plate to adapt to the needs of different crops.
[0038] Furthermore, in a preferred embodiment, the threshing module 43 includes a second bending plate 431 and a plurality of protrusions 432. The plurality of protrusions 432 are connected to the top of the second bending plate 431. The plurality of protrusions 432 can increase the friction of the threshing module 43, thereby achieving a better rubbing effect on the crop. The bottom of the second bending plate 431 matches the top of the first bending plate 412. When the threshing module 43 is directly installed on the threshing module seat 41, the bottom of the second bending plate 431 is in contact with the top of the first bending plate 412.
[0039] Furthermore, in a preferred embodiment, the bottom of the gasket 44 matches the top of the first bending plate 412; the top of the gasket 44 matches the bottom of the threshing module 43. When the gasket 44 is installed, the gasket 44 is installed on the top of the first bending plate 412, the bottom of the gasket 44 is in contact with the top of the first bending plate 412, and the threshing module 43 is installed on the top of the gasket 44, the top of the gasket 44 is in contact with the bottom of the threshing module 43.
[0040] Furthermore, in a preferred embodiment, the threshing module 43, the gasket 44, and the threshing module seat 41 are connected by bolts; each of the threshing module 43, the gasket 44, and the threshing module seat 41 is provided with through holes for mounting bolts, with the bolt extending from the top to the bottom, and the bottom secured by a nut. The bolted connection facilitates the installation or removal of the gasket 44, and also allows for easy replacement when the threshing module 43 is severely worn.
[0041] Furthermore, in a preferred embodiment, the first bending plate 412 is provided with a first through hole 413 and a second through hole 414; please refer to Figure 7 and Figure 9 As shown, when the threshing module 43 is directly installed on the threshing module base 41, the bottom of the second bending plate 431 is in contact with the top of the first bending plate 412, and the bolts are installed in the first through hole 413; please refer to Figure 3 and Figure 5As shown, when a gasket 44 is installed between the threshing module 43 and the threshing module seat 41, the bottom of the second bending plate 431 is in contact with the top of the gasket 44, and the bottom of the front end of the second bending plate 431 is in contact with the top of the first bending plate 412. The bolt is assembled in the second through hole 414.
[0042] Furthermore, in a preferred embodiment, please refer to... Figure 1 As shown, the cylinder body 2 includes a threshing section 21, a separation section 22, and a straw removal section 23 in sequence along the direction of crop flow. Multiple threshing components 4 are spirally distributed on the threshing section 21. The spiral direction of the multiple threshing components 4 is the same as that of the spiral blades 3. When the feeding section 1 and the cylinder body 2 rotate at the same time, it is convenient to convey the crops to the separation section 22.
[0043] Furthermore, in a preferred embodiment, please refer to... Figure 1 As shown, it also includes separating spikes 5 and straw-discharging plates 6. Multiple separating spikes 5 are connected to the separating section 22; multiple straw-discharging plates 6 are connected to the straw-discharging section 23. During operation, multiple threshing modules 43 connected to the threshing section 21 thresh the crops. Then, the crops enter the separating section 22, where the separating spikes 5 loosen the compacted crops in the threshing section 21, thereby separating the grains and straw from the threshing section 21. Next, the crops enter the straw-discharging section 23, where the straw-discharging section 23 discharges the straw separated from the separating section 22 through the straw-discharging plates 6.
[0044] Furthermore, in a preferred embodiment, a plurality of separating spikes 5 are spirally distributed on the separating section 22. The spiral direction of the plurality of separating spikes 5 is the same as the spiral direction of the plurality of threshing components 4, which facilitates the conveying of crops to the straw discharge section 23 when the cylinder body 2 rotates.
[0045] Working principle:
[0046] During operation, the feeding section 1 and the drum body 2 rotate simultaneously. Driven by the spiral blades 3, the crop first enters the threshing section 21, where it is threshed by multiple threshing components 4. Then, the spirally distributed threshing modules 43 push the crop to the separation section 22 for straw-particle separation. The crop is then pushed by spirally distributed separation teeth 5 to the straw discharge section 23, and finally discharged by the straw discharge plate 6. Simultaneously, the grains leak from the tiled plate at the bottom of the drum and enter the cleaning device.
[0047] In summary, the threshing component 4 includes a threshing module seat 41 welded to the drum, threshing teeth 42, a threshing module 43, and a gasket 44. The threshing module 43 is bolted to the threshing module seat 41, with a removable gasket 44 between them. The threshing teeth 42 are bolted to the side wall of the threshing module seat 41. With the gasket 44 present, the threshing module 43 and the threshing teeth 42 are flush. In this case, the threshing module 43 plays a major role, suitable for corn threshing, providing a kneading effect and reducing breakage. Without the gasket 44, the threshing teeth 42 protrude above the threshing module 43, and both work simultaneously. In this case, the threshing teeth 42 play a major role, suitable for threshing long-stalk crops such as wheat and millet, reducing straw breakage. Therefore, this invention can achieve threshing of different crops by installing or removing the gasket 44.
[0048] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A harvester axial flow drum with an adjustable and replaceable threshing module, comprising a frustum-shaped feeding section (1) and a cylindrical drum section (2), wherein a helical blade (3) is connected to the outer wall of the feeding section (1), characterized in that: Multiple threshing components (4) are connected to the outer wall of the cylinder body (2); each threshing component (4) includes a threshing module seat (41), threshing nails (42), a threshing module (43), and a gasket (44). The bottom end of the threshing module seat (41) is connected to the outer wall of the cylinder body (2); the threshing nails (42) are installed on the side wall of the threshing module seat (41); and the gasket (44) is detachably installed between the threshing module (43) and the threshing module seat (41).
2. The adjustable and replaceable axial flow drum of the harvester according to claim 1, characterized in that: The threshing module base (41) includes two side plates (411) and a first bending plate (412), the first bending plate (412) being connected to the top and front end of the two side plates (411).
3. The adjustable and replaceable axial flow drum of the harvester according to claim 2, characterized in that: The threshing nails (42) of any threshing component (4) are bolted to a side plate (411) of the threshing component (4).
4. The adjustable and replaceable axial flow drum of the harvester according to claim 2, characterized in that: The threshing module (43) includes a second bending plate (431) and a plurality of protrusions (432), the plurality of protrusions (432) being connected to the top of the second bending plate (431); the bottom of the second bending plate (431) is matched with the top of the first bending plate (412).
5. The adjustable and replaceable axial flow drum of the harvester according to claim 4, characterized in that: The bottom of the gasket (44) matches the top of the first bending plate (412); the top of the gasket (44) matches the bottom of the threshing module (43).
6. The harvester axial flow drum with adjustable and replaceable threshing module according to any one of claims 1 to 5, characterized in that: The threshing module (43), the gasket (44), and the threshing module base (41) are connected by bolts.
7. The adjustable and replaceable axial flow drum of the harvester according to claim 1, characterized in that: The cylinder body (2) includes a threshing section (21), a separating section (22) and a straw removal section (23) in sequence along the flow direction of the crop, and a plurality of the threshing components (4) are spirally distributed on the threshing section (21); It also includes separation spikes (5) and grass-removing plates (6), with multiple separation spikes (5) connected to the separation section (22) and multiple grass-removing plates (6) connected to the grass-removing section (23).
8. The adjustable and replaceable axial flow drum of the harvester according to claim 7, characterized in that: Multiple of the separation spikes (5) are spirally distributed on the separation section (22).