The invention relates to the field of agricultural aviation, in particular to a pulse jet type seeding method, a seeding unmanned aerial vehicle and a seeding method.The seeding method comprises the following steps that S1, viscous slurry containing suspended seeds is pressurized, and a continuous material bundle is formed; s2, distributing the material beams to form at least two paths of slurry beams with different injection directions; s3, before ejection, through intermittent zooming, the change of the flow section of the slurry beam is formed, the pressure of the slurry beam before ejection is increased again, the slurry beam is cut off in the zooming process, and a jet flow liquid column is separated out; and S4, ejecting the seeds along the ejection direction under the coercing of the jet flow liquid column. Seeding is achieved in an intermittent accelerated ejection mode through a jet flow liquid column formed by wrapping seeds with viscous slurry, and the requirement that the seeds are sown with stable line spacing and hole spacing is met in a multi-path distribution and independent pressurization mode through process flow division. The seed damage rate is reduced, the seedling emergence speed is increased, and the seeding efficiency is high.

    本发明涉及农业航空领域,具体是一种脉冲射流式的播种方法及播种无人机,播种方法,包括以下步骤:S1.对含有悬浮种子的粘性浆料进行加压,形成连续的物料束;S2.将物料束进行分配,形成至少两路射向不同的浆束;S3.在射出前,通过间歇式地缩放,形成浆束流通截面上的变化,再次提升浆束射出前的压力,并在缩放的过程中形成对浆束的截断,分离出射流液柱;S4.种子在射流液柱的裹挟下沿射出方向射出。通过粘性浆料裹挟种子形成的射流液柱,以间歇式加速射出的形式实现播种,并利用过程分流形成多路分配且独立加压的方式,实现种子以稳定的行距和穴距进行播种的要求。降低了种子损伤率、提升了出苗速度、并且播种效率高。


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    Title :

    Pulse jet type seeding method and seeding unmanned aerial vehicle


    Additional title:

    一种脉冲射流式的播种方法及播种无人机


    Contributors:
    ZHOU ZHIYAN (author) / YANG DESHUAI (author) / LIN JIANQIN (author) / JIANG RUI (author) / LIAO WENHAO (author) / LIAO YILONG (author) / YANG YU (author) / HAN WEIKANG (author)

    Publication date :

    2024-05-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    A01C Pflanzen , PLANTING / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64U



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