Corn ear picking roller structure for strengthening stem grabbing

Patent metadata

Field	Value
Publication number	US-12588596-B2
Application number	US-202318243123-A
Country	US
Kind code	B2
Filing date	Sep 7, 2023
Priority date	Jul 5, 2022
Publication date	Mar 31, 2026
Grant date	Mar 31, 2026

Abstract

A corn ear picking roller structure for strengthening stem grabbing includes a header, a seedling divider, a seedling pulling chain, a clamping chain, a seedling pressing plate, and an ear picking device. The seedling divider is connected to a front end of the header, the seedling pulling chain is connected to the header and located on a lower side of the seedling divider, the clamping chain is connected to the header and located on a lower portion of the seedling pulling chain, the ear picking device is connected to the header and located on one side of the seedling divider, and the seedling pressing plate is connected to a top end of the ear picking device. The ear picking device includes a left ear picking roller and a right ear picking roller, and each of the left and right ear picking rollers is provided with an inequilateral multi-edge structure.

First claim

What is claimed is:

1 . A corn ear picking roller structure for strengthening stem grabbing, comprising: a header, a seedling divider, a seedling pulling chain, a clamping chain, a seedling pressing plate, and an ear picking device, wherein the seedling divider is connected to a front end of the header, the seedling pulling chain is connected to the header and located on a lower side of the seedling divider, the clamping chain is connected to the header and located on a lower portion of the seedling pulling chain, the ear picking device is connected to the header and located on one side of the seedling divider, and the seedling pressing plate is connected to a top end of the ear picking device; the ear picking device comprises a left ear picking roller and a right ear picking roller, wherein each of the left ear picking roller and the right ear picking roller is provided with an inequilateral multi-edge structure, an edge surface of the inequilateral multi-edge structure is provided with a groove edge structure, and the groove edge structure is provided with a strengthened stem grabbing type structure;
the inequilateral multi-edge structure of the left ear picking roller and the inequilateral multi-edge structure of the right ear picking roller are matched with each other, an included angle between a groove edge of the inequilateral multi-edge structure of the left ear picking roller and an axis of the left ear picking roller is Φ, an included angle between a groove edge of the inequilateral multi-edge structure of the right ear picking roller and an axis of the right ear picking roller is Φ, a height h2 of a groove edge of the edge surface that is of the inequilateral multi-edge structure and that has a large internal angle is 1 mm to 2 mm, and a height h1 of a groove edge of the edge surface that has a small internal angle is 2 mm to 3 mm; a width of the groove edge of the inequilateral multi-edge structure is 3 mm to 5 mm; and the strengthened stem grabbing type structure comprises patterns distributed on edges of the left ear picking roller and the right ear picking roller, wherein the patterns are in the groove edge structure, and an included angle between the patterns and each of the axis of the left ear picking roller and the axis of the right ear picking roller is Φ, and the patterns are used to improve a grabbing effect of edges on corn stems.

2 . The corn ear picking roller structure for strengthening stem grabbing according to claim 1 , wherein the pattern has a first pattern structure, a second pattern structure, or a third pattern structure.

3 . The corn ear picking roller structure for strengthening stem grabbing according to claim 2 , wherein the first pattern structure is symmetrical oblique groove edges uniformly arranged on edge surfaces of the left ear picking roller and the right ear picking roller, an included angle φ between the oblique groove edge of the left ear picking roller and the axis of the left ear picking roller is equal to θ, and an included angle φ between the oblique groove edge of the right ear picking roller and the axis of the right ear picking roller is equal to θ, wherein θ is an included angle between a stem and a cross section of the left ear picking roller or the right ear picking roller when the stem is grabbed by the left ear picking roller or the right ear picking roller and a top of the stem is pressed down by the seedling pressing plate in an ear picking process.

4 . The corn ear picking roller structure for strengthening stem grabbing according to claim 2 , wherein the second pattern structure is groove edges, wherein the groove edges are uniformly arranged on edge surfaces of the left ear picking roller and the right ear picking roller and are staggered with each other, an included angle between the groove edges staggered with each other is 90°, and included angles φ between the groove edges staggered with each other and the axis of the left ear picking roller, staggered oblique lines, and the axis of the right ear picking roller each are equal to 45°.

5 . The corn ear picking roller structure for strengthening stem grabbing according to claim 2 , wherein the third pattern structure is a group of parallel arc-shaped groove edge structures, an included angle between a middle tangent line of an arc-shaped groove edge structure on an edge surface of the left ear picking roller and the axis of the left ear picking roller is Φ, and a radius of the arc-shaped groove edge structure on the edge surface of the left ear picking roller is a distance between a stem grabbing point and a seedling pressing point when the stem is grabbed by the ear picking device and a top of the stem is pressed down by the seedling pressing plate; an included angle between a middle tangent line of the arc-shaped groove edge structure on an edge surface of the right ear picking roller and the axis of the right ear picking roller is Φ, and a radius of the arc-shaped groove edge structure on the edge surface of the right ear picking roller is the distance between the stem grabbing point and the seedling pressing point when the stem is grabbed by the ear picking device and the top of the stem is pressed down by the seedling pressing plate.

Assignees

• Univ Shandong Technology

Inventors

• Geng Duanyang
• Li Xiang
• Wu Jida
• Jin Chengqian
• Yao Yanchun
• Yin Xiang
• Wang Bolong

Classifications

• A01D45/023

  Gathering chains of belts · CPC title

• A01D45/025 Primary

  Snapping rolls · CPC title