Sunflower harvester-thresher
By designing a sunflower harvester and threshing machine, and adopting a linkage structure of power rollers and bridge rollers, the machine achieves rapid harvesting and layered threshing of sunflowers, solving the problem of low efficiency in traditional methods, improving work efficiency and quality stability, reducing labor intensity, and meeting the mechanization needs of large-scale planting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王猛
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional sunflower harvesting and threshing methods are inefficient, labor-intensive, and difficult to guarantee consistent threshing quality, which affects economic benefits and the sustainability of agricultural production.
A sunflower harvester and threshing machine was designed, comprising a bridge side plate and a threshing assembly arranged opposite each other. It utilizes a power roller and a bridge roller to achieve rapid harvesting and layered separation and threshing of sunflowers, and ensures stable transportation and threshing effect through the linkage between the driven roller and the transmission belt.
It improves the efficiency of sunflower harvesting and threshing, ensures the stability and consistency of threshing quality, reduces labor intensity, and meets the mechanization needs of large-scale planting.
Smart Images

Figure CN224402267U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to a sunflower harvester and threshing machine. Background Technology
[0002] With the adjustment of the agricultural industrial structure and the increasing market demand for sunflower products, the planting area of sunflowers has been continuously expanding. Large-scale planting has exacerbated the problem of low efficiency in manual harvesting and threshing, creating an urgent need for efficient mechanized equipment to improve harvesting and threshing efficiency and meet production demands. Against the backdrop of rural labor migration to cities, agricultural production faces a labor shortage. During the harvest season, manual harvesting and threshing of sunflowers requires a large workforce, is labor-intensive, and recruitment is difficult, prompting farmers and agricultural production enterprises to seek mechanized solutions to alleviate the pressure of labor shortages.
[0003] Manual threshing is inefficient: Traditional manual sunflower threshing is slow and inefficient, with a worker only able to thresh a small number of sunflowers per day. For farmers and businesses cultivating sunflowers on a large scale, this leads to excessively long harvest times, affecting subsequent processing and sales. Inconsistent quality: Manual threshing and some simple traditional mechanical threshing methods struggle to ensure consistent threshing quality, easily causing seed damage and incomplete threshing, affecting sunflower seed quality and yield, and consequently reducing economic benefits. High labor intensity: The series of tasks involving manual sunflower harvesting, transportation, and threshing is extremely labor-intensive, severely depleting farmers' physical strength. Prolonged labor can also cause health problems, hindering the sustainable development of agricultural production. Utility Model Content
[0004] In response to the above situation, in order to overcome the shortcomings of existing technologies such as low efficiency and difficulty in guaranteeing quality.
[0005] The technical solution adopted by this utility model is as follows: a sunflower harvester and threshing machine includes oppositely arranged bridge side plates and a threshing component disposed between the bridge side plates. The threshing component is used to harvest and thresh sunflowers, and a transport module is provided at the lower part between the bridge side plates.
[0006] Furthermore, the threshing assembly includes a power roller and a bridge roller. Several power rollers are spaced apart and pass through the bridge side plates. A sprocket is provided at the extended end of one side of each power roller. A transmission chain is alternately wound around the sprockets. The bridge roller is sleeved on the power roller. A drive wheel is fixedly connected to the extended end of one side of each power roller. The drive wheel is poweredly connected to the drive shaft of a rotary motor through a chain. The rotary motor is located on the outside of the bridge side plates.
[0007] Furthermore, the transport module includes a driven roller that extends through both ends between the bridge side plates. A second sprocket is provided on one side of the driven roller. A second transmission chain is wound between the second sprocket and the first sprocket. Several auxiliary sprockets are provided between the second sprocket and the first sprocket. The second transmission chain passes around the auxiliary sprockets in sequence. An adjustment structure is provided between one side of the second sprocket and the outer side of the bridge side plate. A transmission belt is wound on the driven roller.
[0008] Furthermore, there are four sets of bridge rollers, and the diameters of several bridge rollers increase sequentially.
[0009] Furthermore, the bridge side plate is arranged in a trapezoidal shape.
[0010] Furthermore, the adjustment structure includes a slider and an adjustment rod. A groove is provided on the outer side of the bridge side plate. The slider is slidably disposed inside the groove. The adjustment rod is threadedly connected to one side of the groove. The slider is sleeved on the end of the driven roller.
[0011] Furthermore, a sprocket three is provided at the extended end on the other side of the power roller, and a sprocket four is provided at the extended end on the other side of the driven roller. A transmission chain three is wound between the sprocket three and the sprocket four.
[0012] Furthermore, sprocket one, sprocket two, and sprocket three are configured as double-layer sprockets.
[0013] The beneficial effects of this utility model after adopting the above structure are as follows:
[0014] (1) By driving the rotation of the bridge rollers through multiple sets of power rollers in the threshing assembly, the sunflowers can be harvested quickly. Furthermore, by linking the trapezoidal bridge side plate with the bridge rollers with progressively larger diameters, the distance between the two can be changed in an orderly manner, thereby achieving the layered separation and threshing operation of the sunflowers, improving work efficiency, and ensuring the stability of quality.
[0015] (2) By setting the driven roller and transmission belt in the transportation module, the harvesting efficiency is enhanced while providing stable transportation of raw materials for threshing, thereby improving the harvesting and threshing effect.
[0016] (3) By setting up the linkage between sprocket one, sprocket two and sprocket three and transmission chain one, transmission chain two and transmission chain three, the stability of transmission and kinetic energy transportation is ensured. By setting up the linkage between several auxiliary sprockets and adjustment structures, the stability of transmission pressure of transmission chain two is ensured, and the stability of power transmission is ensured. Attached Figure Description
[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;
[0019] Figure 2 This is an exploded view of the overall structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;
[0021] Figure 4 This is a half-sectional schematic diagram of the overall structure of this utility model;
[0022] Figure 5 This is a partial cross-sectional view of the structure of this utility model. Figure 1 ;
[0023] Figure 6 This is a partial cross-sectional view of the structure of this utility model. Figure 2 ;
[0024] Figure 7 This is a partial cross-sectional view of the structure of this utility model. Figure 3 .
[0025] In the attached diagram: 1. Bridge side plate, 2. Power roller, 3. Bridge roller, 4. Sprocket 1, 5. Transmission chain 1, 6. Drive wheel, 7. Driven roller, 8. Sprocket 2, 9. Transmission chain 2, 10. Auxiliary sprocket, 11. Transmission belt, 12. Slider, 13. Adjusting rod, 14. Sprocket 3, 15. Sprocket 4, 16. Transmission chain 3. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] like Figure 1 As shown, a sunflower harvester and threshing machine includes bridge side plates 1 arranged opposite each other, and a threshing assembly disposed between the bridge side plates 1. The threshing assembly is used to harvest and thresh sunflowers, and a transport module is provided at the lower part between the bridge side plates 1.
[0029] like Figure 2-3 As shown in -4-5-6-7, the threshing assembly includes a power roller 2 and a bridge roller 3. Several power rollers 2 are spaced apart and arranged between the bridge side plates 1. A sprocket 4 is provided at the extended end on one side of the power roller 2. A transmission chain 5 is alternately wound between the sprockets 4. The bridge roller 3 is sleeved on the power roller 2. A drive wheel 6 is fixedly connected to the extended end on one side of the power roller 2. The drive wheel 6 is poweredly connected to the drive shaft of the rotary motor through a chain. The rotary motor is located on the outside of the bridge side plate 1.
[0030] The bridge side plate 1 is trapezoidal, and there are four sets of bridge rollers 3, with the diameter of each set of rollers increasing sequentially. A rotary motor drives the drive wheel 6 and sprocket 4 to rotate via a chain. The sprocket 4 drives several sets of power rollers 2 to rotate via a transmission chain 5. The power rollers 2 drive the bridge rollers 3 with their progressively increasing diameters, thus achieving rapid sunflower harvesting. The linkage between the trapezoidal bridge side plate 1 and the bridge rollers 3 with their progressively increasing diameters allows for orderly changes in the distance between them, thereby achieving layered separation and threshing of sunflowers, improving work efficiency, and ensuring quality stability.
[0031] like Figure 2-3 As shown in -4-5-6-7, the transport module includes a driven roller 7, which is disposed at both ends between the bridge side plates 1. A sprocket 8 is provided on one side of the driven roller 7. A transmission chain 9 is wound between the sprocket 8 and the sprocket 4. Several auxiliary sprockets 10 are provided between the sprocket 8 and the sprocket 4. The transmission chain 9 passes around the auxiliary sprockets 10 in sequence. An adjustment structure is provided between one side of the sprocket 8 and the outer side of the bridge side plate 1. A transmission belt 11 is wound on the driven roller 7. Through the setting of the driven roller and the transmission belt 11 in the transport module, the harvesting efficiency is enhanced while providing stable transportation of raw materials for threshing, thereby improving the harvesting and threshing effect.
[0032] The adjustment structure includes a slider 12 and an adjusting rod 13. A groove is provided on the outer side of one side of the bridge plate 1, and the slider 12 is slidably disposed inside the groove. The adjusting rod 13 is threaded to one side of the groove. The slider 12 is sleeved on the end of the driven roller 7. A sprocket 3 14 is provided on the extended end of the other side of the power roller 2, and a sprocket 4 15 is provided on the extended end of the other side of the driven roller 7. A transmission chain 3 16 is wound between the sprocket 3 14 and the sprocket 4 15. The sprocket 1 4, sprocket 2 8 and sprocket 3 14 are double-layered sprockets. By adjusting the adjusting rod 13, the slider 12 is moved, thereby changing the distance between the sprocket 2 8 and the sprocket 1 4 at the end of the driven roller 7 on one side, ensuring the stable transmission and kinetic energy transport. Through several auxiliary sprockets 10, the pressure of the transmission chain 2 9 is ensured to achieve stable power transmission.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. In conclusion, if those skilled in the art, inspired by this description, design similar structural methods and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A sunflower harvester and threshing machine, characterized in that: It includes bridge side plates (1) arranged opposite each other, and a threshing assembly disposed between the bridge side plates (1). The threshing assembly is used to harvest and thresh sunflowers. A transport module is provided at the lower part between the bridge side plates (1). The threshing assembly includes a power roller (2) and a bridge roller (3). Several power rollers (2) are spaced apart and pass through the bridge side plates (1). A sprocket (4) is provided on the extended end of one side of the power roller (2). A transmission chain (5) is interleaved between the sprockets (4). The bridge roller (3) is sleeved on the power roller (2). A drive wheel (6) is fixedly connected to the extended end of one side of the power roller (2). The drive wheel (6) is poweredly connected to the drive shaft of the rotary motor through a chain. The rotary motor is located on the outside of the bridge side plate (1).
2. The sunflower harvester and threshing machine according to claim 1, characterized in that: The bridge side plate (1) is arranged in a trapezoidal shape, and there are four sets of bridge rollers (3), with the diameter of several bridge rollers (3) increasing sequentially.
3. A sunflower harvester and threshing machine according to claim 2, characterized in that: The transport module includes a driven roller (7), which is disposed between the two ends of the bridge side plate (1). A sprocket (8) is provided on one side of the driven roller (7). A transmission chain (9) is wound between the sprocket (8) and the sprocket (4). Several auxiliary sprockets (10) are provided between the sprocket (8) and the sprocket (4). The transmission chain (9) passes around the auxiliary sprockets (10) in sequence. An adjustment structure is provided between the sprocket (8) on one side and the outer side of the bridge side plate (1). A transmission belt (11) is wound on the driven roller (7).
4. A sunflower harvester and threshing machine according to claim 3, characterized in that: The adjustment structure includes a slider (12) and an adjustment rod (13). A groove is provided on the outer side of the bridge side plate (1). The slider (12) is slidably disposed inside the groove. The adjustment rod (13) is threadedly connected to one side of the groove. The slider (12) is sleeved on the end of the driven roller (7).
5. A sunflower harvester and threshing machine according to claim 4, characterized in that: The power roller (2) has a sprocket three (14) on the other side of its extended end, and the driven roller (7) has a sprocket four (15) on the other side of its extended end. A transmission chain three (16) is wound between the sprocket three (14) and the sprocket four (15).