Preposed throwing roll shaft type underground tuber crop harvesting device

The digging and conveying soil-breaking mechanism of the front-mounted throwing roller harvesting device solves the problems of low adaptability and efficiency of existing equipment in hilly areas, and achieves efficient separation and harvesting of tubers and soil clods with good adaptability.

CN121621110APending Publication Date: 2026-03-10HUNAN AGRI UNIV
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Patent Information

Application Number
CN202511986815.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing harvesting equipment for underground tuber crops is poorly adapted to hilly areas, inefficient, and prone to high tuber damage and poor separation due to soil adhesion.

Method used

The device employs a front-mounted throwing roller harvesting unit, which includes a digging mechanism and a soil-breaking conveying mechanism. It separates the roots and soil clods through multiple sets of roller units and a transmission system. Combined with a hydraulic connection device, it can adjust the angle and height to adapt to hilly terrain.

Benefits of technology

It improves the harvesting efficiency of underground tuber crops, reduces tuber damage, enhances the adaptability and separation effect of the equipment, and is suitable for the complex terrain of hilly areas in the south.

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Abstract

The invention relates to the technical field of tuber crop harvesting, and discloses a front throwing roll shaft type underground tuber crop harvesting device which comprises a rack mounted on a rear self-propelled sorting platform through a connecting mechanism, and the connecting mechanism is used for adjusting the mounting angle of the rack. An excavating mechanism and a conveying and crushing mechanism are sequentially arranged from the front end to the rear end of the rack. The digging mechanism and the conveying and soil crushing mechanism are arranged on the rack, digging and rhizome and soil separation can be completed at a time, conveying is conducted for follow-up sorting, the rhizome harvesting efficiency is improved, and the manual labor amount is reduced; the lifting and the angle of the front harvesting device can be adjusted by connecting the connecting mechanism with the rear self-propelled sorting platform, so that the digging depth of the front harvesting device is adjusted. The first-stage shifting roller unit adopts the design of alternating large and small shifting teeth, so that the crushed soil collision capability is improved; and by adopting the contractive conveying channel, the change of the working width can be realized under the condition of not changing a subsequent machine body, so that the improvement of the adaptability is realized.
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