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近年来,随着东北地区小四轮拖拉机迅速地增长,农村迫切需要性能好、结构简单、通用性强、操作方便、使用可靠的小型播种机。为此,吉林省农科院机械化所研制成功了2BF-2型丰产播种机(图1),并于1985年通过了省级鉴定,1986年投产50台,分布在省内各点进行生产考核。该项技术已转让给吉林、黑龙江两省三个厂家批量生产。一、性能及结构特点
In recent years, with the rapid growth of small four-wheel tractors in northeast China, there is an urgent need in rural areas for small planters with good performance, simple structure, high universality, convenient operation and reliable use. To this end, Jilin Academy of Agricultural Mechanization successfully developed 2BF-2 type of high yield seeder (Figure 1), and in 1985 passed the provincial appraisal, put into operation in 1986 50, distributed in the province at all points for production assessment . The technology has been transferred to Jilin, Heilongjiang provinces three manufacturers mass production. First, the performance and structural characteristics