Corn positioning ear-picking grain-breaking-free ear-picking stick
By designing a corn-positioning ear-picking stick that prevents kernel breakage, and combining the structure of the lower stem-pulling zone, ear-picking zone, and upper stem-pulling zone, and utilizing different radii and numbers of tension bars, the problem of low ear-picking efficiency and quality in existing technologies has been solved, achieving high-efficiency corn harvesting with a low kernel breakage rate.
Patent Information
- Application Number
- CN202423103108.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-03-12
- Filing Date
- 2024-12-16
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-16
AI Technical Summary
The existing corn picking rollers fail to effectively combine the advantages of spiral and straight ribs in their design, resulting in low picking efficiency and quality. Furthermore, they fail to be meticulously optimized to account for differences in corn plant height and ear position, leading to a high kernel breakage rate.
Design a corn ear-picking stick that prevents kernel breakage. The stick has a structure of three sections: a lower stem pull zone, an ear-picking zone, and an upper stem pull zone. The lower stem pull zone uses straight tension bars, while the ear-picking zone combines spiral tension bars and straight tension bars. The tension bars of different radii and numbers are set according to the corn plant height and ear position to ensure that the kernels are not damaged in the ear-picking zone.
It enables efficient ear picking in the central region, reduces the breakage rate, improves the quality and efficiency of ear picking, and adapts to differences in corn plant height and ear position.
Smart Images
Figure CN223613853U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of corn ear-picking sticks, and specifically relates to a corn ear-picking stick that can be used for positioning and picking ears without breaking kernels. Background Technology
[0002] The corn picking roller is one of the most important components of a corn harvester, playing a crucial role in the successful harvesting of corn. Currently, corn picking rollers have various structures. In terms of the bracing method, there are spiral bracing, straight bracing, and combinations of both. Spiral bracing has a lower kernel breakage rate but a poorer stem pulling effect; straight bracing has a better stem pulling effect but a higher kernel breakage rate. While some existing technologies combine both methods, they do not specifically consider the specific area for picking. Corn ears generally grow in the lower-middle part of the corn plant (1.8-2.8 meters tall), and the ear position is in the lower-middle part (0.8-1.2 meters). Therefore, the picking area of the picking roller should be the middle area, and the two ends should be the stem pulling areas. This ensures stem pulling effect while reducing kernel breakage. However, existing structures do not undergo detailed design optimization; they simply integrate the two bracing methods, which does not significantly improve picking efficiency or quality. Therefore, further detailed design optimization is needed.
[0003] In addition, the radius of the straight ribs in the front and rear stalk areas should also be different, because corn plants are thicker at the bottom and thinner at the top, and this area should also be carefully optimized. Utility Model Content
[0004] This utility model provides a corn ear-picking stick that prevents kernel breakage, which can solve the problems pointed out in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a picking stick body, which includes a picking stick shaft. The picking stick shaft has a downward stem-pulling area, a picking area, and an upward stem-pulling area sequentially arranged from one end in the feeding direction. The downward stem-pulling area is 6-10cm long and has a first straight pull rib arranged on its circumference. The picking area is 12-16cm long and has a spiral rib and a second straight pull rib arranged on its surface. The spiral rib has a radius of 10-12mm and a pitch of 3-4cm. The second straight pull rib has a radius of 4-6mm. The upward stem-pulling area is 4-6cm long and has a third straight pull rib arranged on its circumference.
[0006] Preferably, the number of the first straight tie rods is 4-8, and their radius is 6-8 mm.
[0007] Preferably, the number of spiral ribs is 4-6 turns, and the number of second straight tie ribs is 4-8.
[0008] Preferably, the number of the third tie rods is 4-8, and their radius is 10-12mm.
[0009] Beneficial effects: This utility model provides a corn ear-picking stick that prevents kernel breakage and allows for targeted ear picking. It features an ear-picking area in the middle, with a lower stem pull area and an upper stem pull area at both ends. Spiral ribs and a second straight pull rib are installed in the ear-picking area to pick the ears, ensuring smooth feeding while avoiding damage to the kernels. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Explanation of reference numerals in the attached figures:
[0012] The diagram is labeled as follows: 1. Picking stick axis; 2. Lower stem area; 21. First straight pull rib; 31. Spiral rib; 32. Second straight pull rib; 4. Upper stem area; 41. Third straight pull rib. Detailed Implementation
[0013] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.
[0014] Example 1: As Figure 1 As shown, a corn positioning ear-picking and kernel-breaking-free ear-picking stick includes an ear-picking stick body, which includes an ear-picking stick shaft 1. The ear-picking stick shaft 1 is provided with a downward stem pull area 2, an ear-picking area 3, and an upward stem pull area 4 sequentially from one end in the feeding direction. The length of the downward stem pull area 2 is 6-10cm, and a first straight pull rib 21 is arranged on its circumference. The length of the ear-picking area 3 is 12-16cm, and a spiral rib 31 and a second straight pull rib 32 are provided on its surface. The radius of the spiral rib 31 is 10-12mm, and the pitch is 3-4cm. The radius of the second straight pull rib 32 is 4-6mm. The length of the upward stem pull area 4 is 4-6cm, and a third straight pull rib 41 is arranged on its circumference.
[0015] In the 6-10cm lower stem-pulling zone 2, install 4-8 first straight pull bars 21 with a radius of 6-8mm for stem pulling (the thicker stem at the bottom of the corn plant). This area is rarely used for ear picking, so there's no need to worry about ear damage; therefore, the straight pull bars ensure smooth feeding and prevent slippage. In the 12-16cm ear-picking zone 3, install 4-8 second straight pull bars 32 with a radius of 4-6mm and 4-6 spiral bars 31 with a radius of 10-12mm and a pitch of 3-4cm. The straight pull rib 32 continues to pull the stem for feeding. Since the radius of the spiral rib 31 is larger than that of the second straight pull rib 32, the corn ear cannot contact the second straight pull rib 32, thus avoiding the phenomenon of kernel breakage. In the upper stem pulling area 4 of 4-6cm, 4-8 third straight pull ribs 41 with a radius of 10-12mm are set. Since the ear picking is completed in this area, only straight pull ribs need to be set. Since the stem pulling in this area is the upper thin stem of the corn plant, the radius of the straight pull rib here should be smaller than the radius of the straight pull rib in the lower stem pulling area 2.
[0016] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A corn ear-picking stick for positioning and kernel-breaking removal, comprising an ear-picking stick body, wherein the ear-picking stick body includes an ear-picking stick shaft (1), characterized in that: The picking roller shaft (1) is provided with a downward stem area (2), a picking area (3) and an upward stem area (4) in sequence from one end of the feeding direction; the length of the downward stem area (2) is 6-10cm, and a first straight pull rib (21) is arranged on its circumference; the length of the picking area (3) is 12-16cm, and a spiral rib (31) and a second straight pull rib (32) are provided on its surface; the radius of the spiral rib (31) is 10-12mm and the pitch is 3-4cm; the radius of the second straight pull rib (32) is 4-6mm; the length of the upward stem area (4) is 4-6cm, and a third straight pull rib (41) is arranged on its circumference.
2. The corn ear-picking and kernel-breaking-free ear-picking stick according to claim 1, characterized in that: The number of the first straight tie rod (21) is 4-8, and its radius is 6-8mm.
3. The corn ear-picking and kernel-breaking-free ear-picking stick according to claim 1, characterized in that: The number of spiral ribs (31) is 4-6 turns, and the number of second straight ribs (32) is 4-8.
4. The corn ear-picking and kernel-breaking-free ear-picking stick according to claim 1, characterized in that: The number of the third straight tie rod (41) is 4-8, and its radius is 10-12mm.