谷物联合收割机清选装置研究现状及发展趋势

Research Status and Development Trend of Cleaning Unit of Cereal Combine Harvesters

谷物联合收割机的清选性能是影响整机作业性能的重要因素之一,对清选装置的研究有助于提高清选效率,降低清选损失率和含杂率。为此,通过从清选装置的结构、气流场、脱出物运动状态和清选试验等方面综述国内外谷物联合收割机清选装置的研究现状,提出了谷物联合收割机清选装置的发展趋势。

Cleaning performance is one of the most important factors that affect the overall performance in cereal combine harvesters.The study on cleaning technology helps to improve cleaning efficiency and reduce cleaning loss and trash con-tent.To this end,summing up the present research status of cleaning unit of cereal combine harvesters at home and abroad from aspects of the structure of cleaning device, the airflow field, the State motion of threshed materials and physical exercises, and proposing the development trend of cleaning unit of cereal combine harvesters.