Adjustable ear picking plate structure of corn header
By designing an adjustable ear-picking plate structure for the corn header, the problem of cumbersome adjustment of the ear-picking plate gap in existing technologies has been solved, enabling rapid adjustment and efficient harvesting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 聊城市厚德机电有限公司
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, adjusting the gap between the ear-picking plates is a cumbersome process that affects corn harvesting efficiency.
Design an adjustable ear-picking plate structure for a corn header. By combining chain guard plate welding, adjustable ear-picking plate, adjustment rod welding, and adjustment rod fixing seat, multiple sets of ear-picking plates can be adjusted simultaneously.
It enables rapid adjustment of the gap between the ear-picking plates, thus improving corn harvesting efficiency.
Smart Images

Figure CN224165217U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural technology, specifically to an adjustable ear-picking plate structure for a corn harvester. Background Technology
[0002] The corn harvesting header includes an important structure—the ear-picking plate. The function of the ear-picking plate is to allow corn stalks to pass through the spaces between the left and right ear-picking plates, and then be pulled down by the stalk-pulling rollers to complete the ear-picking process. However, corn stalks vary in thickness. When harvesting corn from different plots or of different varieties, the thickness of the stalks will differ, requiring adjustments to the gap between the ear-picking plates to achieve better harvesting results.
[0003] In existing technologies, adjusting the gap between the ear-picking plates involves disassembling some outer protective covers and adjusting other structures in groups before the gap can be adjusted. This process is cumbersome and greatly affects harvesting efficiency. Summary of the Invention
[0004] This invention provides an adjustable ear-picking plate structure for a corn header, so as to quickly adjust the gap between the ear-picking plates.
[0005] An adjustable ear-picking plate structure for a corn header includes a chain guard plate welded together, an adjustable ear-picking plate, an adjustment rod welded together, and an adjustment rod fixing seat;
[0006] The harvesting header includes a picking frame, in which a picking frame panel is fixed, a chain guard plate is fixed on the picking frame panel, and a pad is fixed under the chain guard plate welding connection seat.
[0007] The adjustable ear-picking plate is installed between the chain guard plate welded to the ear-picking frame panel. An adjustment part is provided on the adjustable ear-picking plate. The adjustment part has an installation opening and an adjustment pin is connected to the end. The pad is fixed to the ear-picking frame panel through the installation opening. The thickness of the pad is greater than the thickness of the adjustment part of the ear-picking plate.
[0008] On the underside of the ear-picking frame panel, there is an adjusting rod fixing seat; a connecting plate with an opening on the upper side is connected to the adjusting rod; the connecting plate passes upward through the ear-picking frame panel, and the opening is connected to the adjusting pin; an adjusting handle is also connected to the adjusting rod.
[0009] Furthermore, two connecting seats are connected to one side of the chain guard plate, and a rectangular pad is welded to the lower side of the connecting seats; the mounting opening is rectangular; the pad moves within the rectangular opening.
[0010] Furthermore, the adjusting rod fixing seat is provided with a connecting hole, through which the adjusting rod fixing seat is fixed to the underside of the ear-picking frame panel; a sleeve is also provided on the adjusting rod fixing seat; during the welding of the adjusting rod, the adjusting rod is round and both ends are installed inside the sleeve.
[0011] Furthermore, the adjusting handle is connected to a bolt, and multiple adjusting handles are connected by the same connecting line for unified adjustment.
[0012] The beneficial effects of this utility model are:
[0013] This invention adjusts the gap between the picking plates by setting them only on one side of the gap. In multiple picking frames, the position of the adjusting handle is adjusted simultaneously via a connecting line, thus enabling simultaneous adjustment of multiple sets of picking plates and ensuring uniform gaps between them. This achieves better harvesting results while also improving harvesting efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the installation structure of the harvesting frame panel of this utility model;
[0016] Figure 3 This is a schematic diagram of the chain guard plate welding structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the adjustable ear-picking board structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the welding structure of the adjusting rod of this utility model;
[0019] Figure 6 This is a schematic diagram of the adjusting rod fixing seat structure of this utility model;
[0020] Figure 7 This is a schematic diagram illustrating the installation and use of this utility model;
[0021] Figure 8 This is a schematic diagram of the installation and use of this utility model (the tassel-picking frame panel is not shown);
[0022] Figure 9 This is a schematic diagram of the installation and use of this utility model (the tassel-picking frame panel is not shown);
[0023] In the diagram: 1. Chain guard plate welded together; 1.1. Connecting seat; 1.2. Pad; 2. Adjustable picking plate; 2.1. Adjusting part; 2.2. Mounting opening; 2.3. Adjusting pin; 3. Adjusting rod welded together; 3.1. Connecting plate; 3.2. Adjusting handle; 4. Adjusting rod fixing seat; 4.1. Connecting hole; 4.2. Sleeve; 5. Picking frame panel; 6. Bolt. Detailed Implementation
[0024] The technical solution of the present invention will be further explained and illustrated below through specific embodiments.
[0025] This utility model provides an adjustable ear-picking plate structure for a corn header, including a chain guard plate welded together 1, an adjustable ear-picking plate 2, an adjustment rod welded together 3, and an adjustment rod fixing seat 4;
[0026] The harvesting platform includes a picking frame, in which a picking frame panel 5 is fixed, and a chain guard plate welded 1 is fixed on the picking frame panel 5. Two connecting seats 1.1 are connected to one side of the chain guard plate welded 1, and a rectangular pad 1.2 is welded to the lower side of the connecting seats 1.1.
[0027] The adjustable ear-picking plate 2 is installed between the chain guard plate welded 1 and the ear-picking frame panel 5. An adjustment part 2.1 is provided on the adjustable ear-picking plate 2. The adjustment part 2.1 has an installation opening 2.2 and an adjustment pin 2.3 connected to its end. The pad 1.2 is fixed to the ear-picking frame panel 5 through the installation opening 2.2. The thickness of the pad 1.2 is greater than the thickness of the ear-picking plate adjustment part. The installation opening 2.2 is rectangular. The pad 2.2 moves within the rectangular opening.
[0028] On the lower side of the ear-picking frame panel 5, there is an adjusting rod fixing seat 4; a connecting plate 3.1 with an opening on the upper side is connected to the adjusting rod; the connecting plate 3.1 passes upward through the ear-picking frame panel, and the opening is connected to the adjusting pin; an adjusting handle 3.2 is also connected to the adjusting rod.
[0029] The adjusting rod fixing seat 4 is provided with a connecting hole 4.1, through which the adjusting rod fixing seat 4 is fixed to the underside of the ear-picking frame panel 5; a sleeve 4.2 is also provided on the adjusting rod fixing seat 4; in the adjusting rod welding 3, the adjusting rod is round and both ends are installed in the sleeve 4.2.
[0030] The adjusting handle 3.2 is connected to a bolt 6, and multiple adjusting handles 3.2 are connected by the same connecting line for unified adjustment.
[0031] How to use this utility model:
[0032] In use, this invention is installed on one side of the ear-picking frame. When it is necessary to adjust the gap between the ear-picking plates, because the adjusting handles 3.2 of multiple ear-picking frames are connected to the same connecting line, a uniform adjustment effect can be achieved. The connecting line drives the adjusting handles 3.2, which in turn drives the adjusting rod to rotate. The connecting plate 3.1 applies force to the adjusting pin 2.3, thereby moving the adjustable ear-picking plates 2 to adjust the gap between the ear-picking plates.
Claims
1. An adjustable ear-picking plate structure for a corn header, characterized in that, This includes chain guard plate welding, adjustable picking plate, adjusting rod welding, and adjusting rod fixing seat; The harvesting header includes a picking frame, in which a picking frame panel is fixed, a chain guard plate is fixed on the picking frame panel, and a pad is fixed under the chain guard plate welding connection seat. The adjustable ear-picking plate is installed between the chain guard plate welded to the ear-picking frame panel. An adjustment part is provided on the adjustable ear-picking plate. The adjustment part has an installation opening and an adjustment pin is connected to the end. The pad is fixed to the ear-picking frame panel through the installation opening. The thickness of the pad is greater than the thickness of the adjustment part of the ear-picking plate. On the underside of the ear-picking frame panel, there is an adjusting rod fixing seat; a connecting plate with an opening on the upper side is connected to the adjusting rod; the connecting plate passes upward through the ear-picking frame panel, and the opening is connected to the adjusting pin; an adjusting handle is also connected to the adjusting rod.
2. The adjustable ear-picking plate structure of the corn header according to claim 1, characterized in that, The chain guard plate has two connecting seats on one side of the welded side, and a rectangular pad is welded to the lower side of the connecting seats; the mounting opening is rectangular; the pad moves within the rectangular opening.
3. The adjustable ear-picking plate structure of the corn header according to claim 1, characterized in that, The adjusting rod fixing seat has a connecting hole, through which the adjusting rod fixing seat is fixed to the bottom of the ear-picking frame panel; a sleeve is also provided on the adjusting rod fixing seat; during the welding of the adjusting rod, the adjusting rod is round and both ends are installed in the sleeve.
4. The adjustable ear-picking plate structure of the corn header according to claim 3, characterized in that, The adjusting handle is connected to a bolt, and multiple adjusting handles are connected by the same connecting line for unified adjustment.