数字农科院2.0

DEVELOPMENT AND TEST OF FREQUENCY SUBSECTION REGULATION SYSTEM FOR COMBINE HARVESTER HEADER CUTTER

文献类型： 外文期刊

作者： Li Ying;Guan Zhuohuai;Chen Yisong

作者机构：

关键词： Combine harvester;cutter frequency;header;missed cutting;segmented regulation

期刊名称： INMATEH - Agricultural Engineering

ISSN： 2068-4215

年卷期： 2021 年 65 卷 3 期

页码：

收录情况： EI（2021版）

摘要： Aiming at the problems that the cutter frequency of combine harvester is difficult to be adjusted adaptively with the forward speed, and that the missed cut or repeated cut may cause the harvesting loss to increase and the operation effect to fluctuate greatly, the system is designed to regulate the cutter frequency of combine harvester by sections. By constructing the cutter trajectory equation, the influence of the relationship between the forward speed of the harvester and the cutting frequency on the cutting area is analysed, and the optimum cutting frequency range at different operating speeds is determined. The results show that the error between the actual cutting frequency and the desired frequency of the cutter is less than 0.8Hz, and the maximum relative error is less than 8.6%; the average steady-state adjustment time of the system is 1.3s when the input cutting frequency of the device changes abruptly. The research class provides technical support for the improvement of the combine harvester handling system and the increase of the machine automation level.

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