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八五七农场十二队1987～1988年从西岗齿轮厂购进2台2BJGL—6型精密联合耕播机。由于使用中存在一些问题,1987年只播大豆400亩;1988年经改装后,保证了播种质量,单机完成2000亩的播种任务。一、存在的问题1.毛刷轮往上返种子原因是:①连接梳齿板(挡种板)的铁片太薄太软,不能有效地强制固定梳齿,结果毛刷轮带起的种子往上挤压时,梳齿板上浮而使种子通过梳齿板向上溢出;②梳齿板过长,梳齿板与毛刷轮的相切角度过小,使梳齿板不能有效地梳净毛刷轮带起的种子而
Eight hundred fifty-seven farm 12 team 1987 ~ 1988 from Xigang Gear Factory purchased two 2BJGL-6-type precision combined tillage machine. Due to some problems in use, only 400 mu of soybean was sown in 1987; after the modification in 1988, the sowing quality was guaranteed, and the sowing task of 2000 mu was completed. First, the existing problems 1. The reason why the brush wheel turns back to the seeds is: ① the iron plate connected to the comb plate (retaining plate) is too thin and too soft to be able to forcefully fix the comb teeth. As a result, the brush wheel When the seeds are squeezed upward, the comb plate floats and the seeds overflow upward through the comb plate; ② The comb plate is too long and the tangent angle between the comb plate and the brush wheel is too small, so that the comb plate can not be effectively combed Net brush wheel from the seeds and