Axleless drum potato harvester

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The shaftless drum potato harvester eliminates the central drive shaft and directly drives the drum to rotate. Combined with soil-cutting blades and separating blades, it solves the problems of limited cutting angle and foreign object adhesion in traditional drum harvesters, thus improving operating efficiency and separation effect.

CN120283527BActive Publication Date: 2026-07-24GUANGDONG MECHANICAL & ELECTRICAL COLLEGE

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: GUANGDONG MECHANICAL & ELECTRICAL COLLEGE
Filing Date: 2025-04-02
Publication Date: 2026-07-24

AI Technical Summary

Technical Problem

Existing drum-type potato harvesters suffer from limited cutting angles, susceptibility to foreign object adhesion and clogging due to their central drive shaft structure, resulting in low operating efficiency and poor separation performance in sticky soils.

Method used

It adopts a shaftless design, directly driving the drum rotation, eliminating the central drive shaft, and using a combination of soil-cutting blades and separating blades to separate soil from potatoes. The roller assembly and drive assembly ensure stable drum rotation.

Benefits of technology

The increased cutting angle prevents foreign objects from adhering and clogging, improves work efficiency, reduces mechanical damage to potatoes, and adapts to different soil conditions.

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Figure CN120283527B_ABST

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Abstract

The application discloses an axle-free drum type potato harvester and relates to the technical field of agricultural machinery.The axle-free drum type potato harvester comprises a fixing support, a separation drum, a soil cutting blade, separation blades and a driving assembly.The fixing support moves forward under the external driving action.The drum body of the separation drum is of a filter screen structure.The separation drum is rotatably connected to the fixing support around a first axis.The first axis gradually rises from front to back.The front end opening of the separation drum is lower than the rear end opening of the separation drum.The soil cutting blade is arranged around the front end opening of the separation drum.The separation blades are arranged in a spiral shape on the inner cylinder wall of the separation drum.The driving assembly is connected to the separation drum and is used for driving the separation drum to rotate around the first axis.The present scheme changes the separation form of directly driving the drum to rotate from the separation form of rotating the central transmission shaft in the drum, can obtain a larger cutting angle, avoids the winding and clogging problems and improves the operation efficiency.

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