我厂生产的悬挂式2BQ—7型气吸式播种机,采用负压原理进行工作。其优点是:在排种过程中由气体压力充填种子,排种速度可大于机械式的,因而可提高机组的作业速度,排种时对种子无强制的摩擦作用,不致使种子破碎,可节省大量良种,为实现精量单粒点播打下基础,同时也适合播种催芽后的种子,如花生等,由于它的排种盘配置位置较低,不需要很长的输种 I plant the hanging 2BQ-7-type air suction planter, using negative pressure principle of work. The advantages are: seeds are filled with gas pressure in the process of seeding, the speed of seeding can be greater than that of the mechanical type, which can increase the operation speed of the unit, no forceful friction on the seeds during seeding, and can not cause the seeds to be broken and save A large number of seeds, in order to lay the foundation for the realization of precision single-pitted, but also suitable for sowing seeds after germination, such as peanuts, due to its low placement of seed arrangement tray, do not need a long transplanted