Arc-shaped pick-up tooth rod self-rotating change direction type straw gathering unit

By installing components such as a ring plate and cylindrical gears on the arc-shaped picking rack, the self-rotating directional collection of straw is realized, which solves the problem of straw entanglement, improves picking efficiency and laying quality, and reduces malfunctions.

CN114175929BActive Publication Date: 2026-05-26NORTHEAST AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEAST AGRICULTURAL UNIVERSITY
Filing Date
2022-01-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing curved picking teeth are prone to getting tangled in the straw during the straw picking and gathering process, making it difficult for the straw to fall off the picking teeth, affecting the work efficiency and laying quality, and are also prone to failure.

Method used

A self-reversing straw collection unit with an arc-shaped picking toothed rod is designed. By installing components such as a ring plate, cylindrical gear and square seat plate on the picking toothed rod, the self-reversing direction of the picking toothed rod is realized by using a rotary drive bushing and tension spring, ensuring that the straw can be smoothly detached during the picking and laying process.

Benefits of technology

It improved straw collection efficiency and detachment effect, reduced malfunctions, and enhanced operational efficiency and laying quality.

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Abstract

This arc-shaped picking-up toothed rod self-rotating straw gathering unit belongs to agricultural machinery. It features a right and left ring frame symmetrically fixed to a Π-shaped frame. First and second pushing bosses and first and second racks are fixed to the inner wall of the right ring frame. Right and left annular limiting track grooves are respectively opened on the outer circumference of the right and left ring frames. A rotary drive bushing is positioned at the center of the right and left ring frames. A rod seat is fixed to the rotary drive bushing, and the rod seat is connected to the arc-shaped picking-up toothed rod via a connecting shaft and a shaft seat. The two ends of a tension spring are connected to the rod seat and the connecting shaft, respectively. An annular plate, a cylindrical gear, and a square seat plate are sequentially installed on the arc-shaped picking-up toothed rod. Four anti-rotation limiting posts are symmetrically positioned at the four corners of the inner side of the square seat plate. This unit achieves self-rotation adjustment of the arc-shaped picking-up toothed rod's orientation during straw picking and unloading. It has a unique and reasonable structure, high operating efficiency, good laying quality, few malfunctions, and reliable use.
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