Reverse ear picking device of fresh corn harvester
By designing a reverse ear-picking device with left and right supports and an inclined ear-picking plate, the action of manually picking corn is simulated, which solves the problem of broken kernels in fresh corn and achieves higher ear integrity and quality.
Patent Information
- Application Number
- CN202520120442.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-19
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-19
AI Technical Summary
The existing ear-picking plate is prone to causing damage to fresh corn kernels when used on corn harvesters. The existing technology is inconvenient and needs to be improved to protect the integrity of the corn ears.
Design a reverse ear-picking device that includes a left support, a right support, an ear-picking plate, a belt drive mechanism, and a hydraulic motor. The ear-picking plate, which is arranged at an angle, simulates the action of picking corn by hand. By adjusting the included angle and the tilt angle, damage to the corn can be reduced.
It effectively reduces damage to fresh corn ears, improves the quality of harvested ears, and avoids damage caused by traditional clamping methods.
Smart Images

Figure CN223912969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a corn harvesting device, specifically to a reverse ear-picking device for a fresh corn harvester. Background Technology
[0002] Fresh corn is highly nutritious, with protein and sugar content far exceeding that of regular corn. It also contains various vitamins and minerals, and has a sweet taste and excellent quality. Fresh corn may have a certain preventive effect against cancer and diabetes, and can lower blood pressure and blood lipids, thus providing health benefits.
[0003] Currently, ear-picking plates are widely used in corn harvesters. Due to the fresh, crisp, and tender nature of sweet corn, the ear-picking plate easily squeezes water out of the kernels at the base of the corn kernels during ear picking, resulting in a high kernel breakage rate. The existing technology clearly has inconveniences and shortcomings in practical use, so it is necessary to improve it. Summary of the Invention
[0004] The purpose of this invention is to provide a reverse ear-picking device for a fresh corn harvester, which can reduce damage to corn ears and ensure the integrity of fresh corn ears.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a reverse ear-picking device for a fresh corn harvester, comprising an ear-picking plate, a support, a connecting frame, a left support, a drive wheel, a hydraulic motor, a tension wheel, a U-shaped connecting frame, a guide wheel, a right support, a belt, and a fixed support wheel; characterized in that: the left support and the right support are interconnected by two U-shaped connecting frames arranged front and rear, fixed on the fresh corn harvester, with the front ends of the left and right supports respectively extending outward to form a feeding angle, and belt drive mechanisms are respectively provided on the left and right supports, with the guide wheel located on the left... The tensioning wheel is located at the front end of the right support, the left end of the left support, and the right end of the right support. The fixed support wheel is located at the end of the left support and the left end of the right support. The drive wheel is located at the rear end of the left and right supports and is connected to the hydraulic motor. The picking plate is arranged at an angle with the front higher than the rear under the left and right supports. The two picking plates are non-parallel and symmetrical with one higher and one lower. The picking plates are inclined towards the middle to form an angle. A support and a connector are connected to the front and rear of the picking plate, respectively. The angle between the picking plates and the tilt angle between the picking plates and the left and right supports can be adjusted through the support and the connector.
[0006] The beneficial effects of this utility model are as follows: 1. By forming a picking channel through the parallel arrangement of the left and right supports, and by having two sets of belt drive mechanisms respectively installed on the left and right supports cooperate to clamp and feed the fresh corn stalks, the fresh corn can be elastically clamped and fed in; this avoids the damage to the corn ears caused by the clamping and feeding chain of traditional harvesters, thus improving the quality of the corn ears. 2. Because a pair of picking plates with a front-high and rear-low inclined arrangement are provided below the left and right supports, the picking plates are not parallel and symmetrical, and the two picking plates are inclined towards the middle to form an angle. A support and a connecting frame are connected to the front and rear of the picking plates respectively. By adjusting the support and the connecting frame, the angle between the picking plates and the tilt angle between the picking plates and the left and right supports can be adjusted, which can simulate the action of picking corn by hand to complete the picking; this further reduces the damage to the fresh corn during picking and improves the quality of the fresh corn ears after harvesting. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the reverse ear-picking device used in a fresh corn harvester;
[0008] Figure 2 yes Figure 1 Top view;
[0009] Figure 3 This is a schematic diagram illustrating the working principle of this utility model;
[0010] In the diagram: 1. Harvesting plate; 2. Support frame; 3. Connector; 4. Left support frame; 5. Drive wheel; 6. Hydraulic motor; 7. Tensioning wheel; 8. U-shaped connecting frame; 9. Guide wheel; 10. Right support frame; 11. Belt; 12. Fixed support wheel Detailed Implementation
[0011] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, further explanation is provided below with reference to the accompanying drawings: Figure 1 As shown, this utility model relates to a reverse ear-picking device for a fresh corn harvester, including a left support 4 and a right support 10 arranged in parallel. The front ends of the left support 4 and the right support 10 extend outward to form a feeding angle of 10 to 35 degrees. A belt transmission mechanism driven by a hydraulic motor 6 is installed at the rear end of the left support 4 and the right support 10, which is used to cooperate with each other to clamp and feed the fresh corn. Two tensioning wheels 7 are evenly distributed on the left support 4 and the right support 10 to increase the clamping force of the two belt transmission mechanisms. The ear-picking plate 1 is arranged at an angle with the front higher than the rear below the left support 4 and the right support 10. The two ear-picking plates 1 are non-parallel and symmetrical with one higher and one lower. The ear-picking plates 1 are inclined towards the middle to form an included angle. A support 2 and a connecting piece 3 are connected to the front and rear of the ear-picking plate 1, respectively. The included angle between the ear-picking plates 1 and the tilt angle between the ear-picking plates 1 and the left support 4 and the right support 10 can be adjusted through the support 2 and the connecting piece 3.
[0012] Working principle: such as Figures 1-3 As shown, the hydraulic motor 6 connected to the fresh corn harvester starts simultaneously, driving the two belt transmission mechanisms 11 to rotate in opposite directions. After the belt transmission mechanisms 11 rotate, they work together with the machine to move forward, feeding the cut fresh corn stalks into the space between the left support 4 and the right support 10 under the clamping force of the two belt transmission mechanisms 11. As the fresh corn stalks enter, the corn ears enter between a pair of ear-picking plates 1. In commonly used reverse ear-picking devices for fresh corn, the ear-picking rollers are arranged in parallel and symmetrical arrangement. When the fresh corn ears are parallel to the two ear-picking rollers and the top of the corn is in the middle of the gap between the two ear-picking rollers, the corn may get stuck between the two ear-picking rollers, causing damage to the corn ears. The ear-picking plates 1 of this invention, which are high and low and tilted towards the middle, can effectively avoid this situation. Figure 3 As shown, when the ears of fresh corn are parallel to the two picking plates 1 and the top of the ears is exactly in the middle of the gap between the two picking plates 1, since the gap between the two picking plates 1 is adjusted according to the diameter of the fresh corn stalk, and the diameter of the middle part of the fresh corn ear is larger than the diameter of the corn stalk, the gap between the two picking plates can be adjusted to a suitable size by the bracket 2 and the connector 3 so that the fresh corn stalk moves upward close to the picking plate 1. When the part of the fresh corn ear that is larger than the fresh corn stalk comes into contact with the lower picking plate 1, the fresh corn ear will tilt along the inside of the lower picking plate to the higher picking plate 1 to complete the picking. When the fresh corn ear is in other positions, the picking can be completed normally.
[0013] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.
Claims
1. A reverse earing device of fresh corn harvester, comprising an earing plate, a support, a connecting piece, a left support, a driving wheel, a hydraulic motor, a tension wheel, a U-shaped connecting frame, a guide reel, a right support, a belt, a fixed support wheel; characterized in that: The left support and the right support are connected by two U-shaped connecting supports arranged in front and back, and are fixed on the fresh corn harvester, and a feeding angle is formed at the front end of the left support and the right support, respectively, and a belt drive mechanism is arranged on the left support and the right support, respectively, a guide reel is arranged at the front end of the left support and the right support, a tensioning wheel is arranged at the left end of the left support and the right end of the right support, a fixed supporting wheel is arranged at the right end of the left support and the left end of the right support, and a driving wheel is arranged at the rear end of the left support and the right support and is connected with a hydraulic motor.
2. A reverse earling device for a fresh market maize harvester according to claim 1, characterized in that: The ear picking plates are arranged in a high front and low back inclination below the left support and the right support, and the two ear picking plates are non-parallel and symmetric with one high and one low, the ear picking plates are inclined to the middle to form an included angle, an ear picking plate is connected with a support and a connecting piece in front and back, respectively, and the included angle between the ear picking plates and the inclination angle between the ear picking plates and the left support and the right support can be adjusted through the support and the connecting support.