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小麦精播要求最终实现田间种子精确三维定位 ,其中粒距均匀度最难控制。 2 BF- 8型小麦精密播种机采用了已获国家专利的一器两行“球勺形内窝孔小麦精密排种器”为核心部件 ,使排种定量、准确、可控、无带动层 ,优化配置新型张角可调型双圆盘开沟器 ,播种施肥联合作业 ,样机性能试验 ,其均匀性指标优于农业部《精量半精量机械化播种实施技术要点》。该文从整机角度系统分析影响播种机播种均匀性的诸因素 ,论述了提高均匀性的方法和途径。
Precision sowing of wheat requires the final realization of accurate three-dimensional positioning of seeds in the field, of which grain-size uniformity is the most difficult to control. 2 BF-8 wheat precision seeding machine has adopted the national patent of a two-line “spherical scoop hole-shaped wheat precision seed metering device” as the core components, so that the seed metering quantitative, accurate, controlled, no drive layer Optimized allocation of new adjustable angle double disc opener, sowing and fertilizing joint operation, prototype performance test, the uniformity index is better than the Ministry of Agriculture, “precision semi-precision mechanized sowing implementation of technical points.” This article systematically analyzes the factors influencing the sowing uniformity of sowing machines from the perspective of the whole machine and discusses the methods and ways to improve the uniformity.