A low-loss threshing and cleaning device for a rapeseed combine harvester

By designing an electric telescopic rod and rotating rod system in the rapeseed combine harvester to assist in screen cylinder replacement, combined with gear-driven threshing components, the problem of inconvenient operation within the confined space of the screen cylinder is solved, improving the ease of replacement and threshing efficiency, and achieving a high-efficiency, low-loss threshing effect.

CN224521809UActive Publication Date: 2026-07-21JIANGXI RED SOIL & GERMPLASM RESOURCES RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI RED SOIL & GERMPLASM RESOURCES RES INST
Filing Date
2025-09-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The screen cylinder of the existing rapeseed combine harvester is installed in a narrow space, which requires manual disassembly and support during replacement. This is inconvenient, time-consuming, and labor-intensive, affecting the efficiency of operation.

Method used

A low-loss threshing and cleaning device was designed, comprising a cutting component, a scraper elevator, a screening box, and a threshing component. The device utilizes an electric telescopic rod and a rotating rod system to assist in the replacement of the screen cylinder, providing support and easy disassembly. Combined with a gear-driven threshing component, the threshing efficiency is improved.

Benefits of technology

It significantly reduces the burden on operators, improves the convenience and safety of screen cylinder replacement, enhances threshing efficiency and operational safety, reduces grain breakage and incomplete threshing, and achieves efficient threshing and low-loss harvesting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of harvester, concretely to a low loss threshing and cleaning device for oilseed rape combine, including cutting part, the one side of cutting part is installed with scraper elevator, the one side of scraper elevator is connected with screening box, the both sides of screening box are equipped with screening subassembly, screening subassembly contains installation box and push frame, the left side slidingly connected of screening box has the placing plate. The utility model discloses the screening subassembly of setting, can provide effective support to screen mesh cylinder in the process of replacing screen mesh cylinder, significantly reduces the burden of manual lifting of operating personnel in the narrow space, assists its stable, safely to take out or install screen mesh cylinder, improves the convenience and operation safety of replacement. Meanwhile, in the threshing process, two threshing parts rotate reversely under the drive of gear, realize periodic meshing and collision, not only strengthen the rubbing and beating effect of rape and other crops, improve the threshing efficiency.
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