气吸振动滚筒式防堵塞精密播种装置设计与分析

针对目前精密播种装置在长时间的播种中容易出现吸嘴被堵塞、播种合格率降低等问题,设计了一种气吸振动滚筒式防堵塞精密播种装置。该装置由滚筒装置、落种装置、振动种盘及加种箱等组成,利用振动种盘振动使其内的种子群做"沸腾"运动;带有负压的吸嘴将种子吸附并携带种子进入排种区,利用重力和正压进行排种;并通过安装在滚筒装置中的导针以实现清理吸嘴中的杂物,可有效防止播种过程中吸嘴堵塞,有利于播种装置实现精量、低伤种率的播种需求。在播种前向加种箱中加入适量的种子,可实现自动精量均匀加种,播种装置加种过程对种子损伤率小,加种效率高,可实现长时间连续播种的需求,播种工作效率可达到225盘/h以上。

Design and Analysis of Vacuum-vibration Drum Type Precision Seeding Device

Aiming at the problems of sowing is easy to occur in suction mouth was blocked ,and resulting in low seeding qualified rate precision seeding device in the long time , design a vacuum-vibration drum type anti-blocking precision seeding device ,which is composed of a roller device ,drop device ,vibrating seed tray ,add a kind of box etc ,vibrating seed tray vibrate to make the seed group “boiling”,with negative pressure suction nozzle will absorb and carry the seeds into seed zone , using gravity and pressure rowing seeds ,and to achieve cleaning sundries in suction mouth through guide pin is installed on the roller device , which can effectively prevent the process of seeding in suction mouth blocking , achieve the demand of precision and low damage rate in the process of seeding; adding seeds to seeding boxes before seeding , can realize the automatic precision seeding with uniform ,seeding damage rate is small and adding efficiency is high in the process of seeding , the requirement of continuous seeding can be realized for a long time , and seeding efficiency can reach over 225 seedling tray/h.