中国农业大学学报2012，Vol.17Issue(2)：134-138,5.
气吸辊式水稻精量直播排种器的设计与试验研究
Design and experimental research of air-suction roller rice precision direct seed-metering device
摘要
Abstract
An air-suction roller rice precision direct seed-metering device was designed to solve the existing problem in seed-metering,such as poor adaptability,high rate of seed injury and low seed-metering rate.The conditions of seeds sucking were analyzed and the influencing parameters of performance were obtained.The experimental studies showed that the designed seed-metering device could meet the requirements of rice precision seeding and low rate of bud injury,and a positive correlation relationship was observed between the diameter of the sucking pinhole and suction performance.The diameter of the sucking pinhole should be greater than 0.60 mm.The main factors that affect suction performance were the diameter of the sucking pinhole,the degree of vacuum and roller speed respectively.The rate of qualified sowing is 98% when the diameter of the sucking needle was 1.55 mm,the degree of vacuum was 0.035 MPa and the roller speed was 50 r/min respectively.关键词
水稻/气吸辊/精量直播排种器/结构设计/吸附条件Key words
rice/air-suction roller/precision direct seed-metering device/mechanical design/sucking condition分类
农业科技引用本文复制引用
刘彩玲,宋建农,王清旭,王继承..气吸辊式水稻精量直播排种器的设计与试验研究[J].中国农业大学学报,2012,17(2):134-138,5.基金项目
国家自然基金资助项目 （）
中国农业大学青年教师科研项目 （）
