Horizontal ear picking roller gap self-adapting device

Abstract

This utility model discloses a horizontal ear-picking roller gap adaptive device, including a support frame, a floating roller, a fixed roller, a tension spring, an outer ear-picking roller plate, a central shaft, a protective cover, and spring sliders. Tension springs are installed below two spring sliders, which are also installed below the outer ear-picking roller plate. The spring sliders, tension springs, and outer ear-picking roller plate are mounted around the central shaft. The protective cover is installed at the front of the central shaft. A top opening is installed on both sides of the support frame, and the front of the central shaft is pressed against the top opening. The other end of the roller is connected to the support frame. The tension length of the tension spring is adjusted by the force exerted by the stalk on the outer ear-picking roller plate. When the force decreases, the spring contracts, and the outer ear-picking roller plate moves upward, thus compressing and resetting the outer ear-picking roller plate, changing the gap between the outer ear-picking roller plate and the fixed roller. This allows for adaptive adjustment of the ear-picking roller gap to accommodate different feed rates. This device can prevent stalk blockage or missed cutting caused by the gap in the ear-picking roller during operation.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, specifically to a device for adaptive gap of horizontal ear-picking rollers. Background Technology

[0002] Corn is widely cultivated, with significant differences in climate and soil conditions across different regions. Coupled with the diverse corn varieties, the diameter of corn stalks varies considerably between regions and varieties. Even within the same region, uneven soil fertility and varying sunlight duration result in different stalk diameters. When dealing with thinner stalks, an excessively large gap between the picking rollers can lead to insufficient clamping force, preventing the stalk from being effectively pulled and causing blockages in the feeding inlet or between the picking rollers. Conversely, when dealing with thicker stalks, an excessively small gap can cause the stalk to be squeezed and broken, impacting harvesting efficiency and wasting resources. To address these issues, a horizontal picking roller gap adaptive device was designed. Summary of the Invention

[0003] This invention provides a device for adaptive gap adjustment of horizontal picking rollers. The device includes a protective cover to prevent stalks and debris from entering the picking roller and affecting the spring extension and contraction, thus impacting the device's stability. The fixed roller on the support frame remains in a fixed position. A tension spring installed below the outer plate of the picking roller is at its original length when not in operation. When there are thick stalks or a large feed amount, the stalks compress the outer plate of the picking roller, causing the tension spring to lengthen and the outer plate to move downwards, thus reducing the diameter of the floating roller. A gap baffle is installed on each outer plate of the picking roller via a connecting hinge. When the feed amount decreases, the force on the outer plate of the spring decreases, causing the tension spring to contract and the outer plate of the picking roller to move upwards, thus increasing the diameter of the floating roller. The gap between the floating roller and the fixed roller decreases, and the gap of the picking rollers is adjusted by the contraction and restoration of the outer plate of the picking roller.

[0004] The beneficial effects of this utility model are as follows: The advantage of this utility model is that the picking roller assembly can automatically adjust the gap under different stalk diameters and feeding amounts, preventing the picking roller assembly from failing to make contact with the corn plant and avoiding header congestion. Simultaneously, it allows for the sliding removal of corn ears, reducing the impact between the large end of the corn ear and the picking roller assembly, thus avoiding kernel loss. Attached Figure Description

[0005] To more clearly illustrate the technical solutions in the embodiments of this patent or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this patent. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0006] Figure 1 This is a schematic diagram of the structure of this patent.

[0007] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0008] Figure 3 This is a side view of the floating roller of this patent.

[0009] Figure 4 This is a diagram of the interior of the floating roller.

[0010] In the diagram: 1. Support frame; 2. Fixed roller; 3. Top buckle; 4. Large spring slider; 5. Tension spring; 6. Outer plate of the picking roller; 7. Gap baffle; 8. Floating roller; 9. Connecting hinge; 10. Central shaft; 11. Protective cover; 12. Small spring slider. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0012] Examples, as per the appendix to the instruction manual Figure 1-4 It can be seen that this solution provides a device for adaptive gap of horizontal ear-picking roller, including a protective cover 10, a central shaft 11 and a top buckle 3. The top buckle 3 is installed at the front of the support frame 1. The thicker part of the central shaft 11 is fixed at the tail of the support frame 1, and the thinner part of the central shaft 11 is fixed together with the top buckle 3. The protective cover 10 is welded to the front of the central shaft 11 to prevent debris from entering the ear-picking roller through the gap at the front end of the ear-picking outer piece 6. The lower end of the large spring slide block 4 is mounted on the central shaft 11 by a hinge and can rotate freely. After the floating roller 2 and the fixed roller 8 rotate in opposite directions to feed the corn stalk, the ear-picking outer piece 6 is compressed, causing the tension spring 5 to extend. The upper end of the large spring slide block 4 moves downward, forcing the lower end of the small slider 12 to move to the right, thereby reducing the diameter of the floating roller 8. When the feeding amount decreases, the force on the ear-picking outer piece 6 decreases, the tension spring 5 contracts, causing the lower end of the small slider 12 to return to its original position, causing the ear-picking outer piece 6 to move upward, thus increasing the outer diameter of the ear-picking roller and reducing the gap between the floating roller 8 and the fixed roller 2.

Claims

1. A horizontal ear-picking roller gap adaptive device, comprising a support frame (1), a fixed roller (2), a top buckle (3), a large spring slider (4), a tension spring (5), an outer sheet of the ear-picking roller (6), a gap baffle (7), a floating roller (8), a connecting hinge (9), a central shaft (10), a protective cover (11), and a small spring slider (12); characterized in that The fixed roller (2) and the floating roller (8) are fixed on the support frame (1) by the top buckle (3); the large spring slider (4), the small spring slider (12), the tension spring (5), the outer plate of the picking roller (6), and the gap baffle (7) are installed on the central shaft (10).

2. The horizontal picking roller gap adaptive device according to claim 1, characterized in that: The protective cover is welded to the front section of the central shaft; the lower end of the large spring slider is mounted on the central shaft by a hinge and can rotate freely, while the upper end is connected to the small spring slider by a hinge. The lower end of the small spring slider enters the groove of the central shaft and can move left and right along the groove. There is a tension spring connecting them in the middle. The above devices are evenly installed below the outer ear picking sheet, and the gap baffle is mounted on the side of the outer ear picking sheet away from the gap of the ear picking roller by a hinge.

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