The invention discloses a duct differential pressure type powder spraying device for unmanned aerial vehicle sowing. A duct main body comprises an inner-layer shell and an outer-layer shell; the lowerend of the inner-layer shell is positioned above the outer-layer shell; a middle cavity layer for powder to pass through is formed between the outer-layer shell and the inner-layer shell; a feeding hole for feeding materials is formed in the upper part of the middle cavity layer; a material spraying opening is formed below the middle cavity layer, an inner cavity is formed in the inner-layer shell, a fan used for generating air pressure difference is arranged in the inner cavity, a ventilation window communicating with the inner cavity and the outer portion of the outer layer shell is furtherarranged,the window body of the ventilation window and the middle cavity layer are kept isolated in a closed mode, the ventilation window is arranged above the fan, and an air outlet is formed belowthe inner cavity. Powder is sprayed through air pressure difference, so that the powder is isolated from the fan blades used for stirring air, the risk that the fan blades are broken and damaged due to the powder is avoided, corresponding maintenance and cost are further avoided, and related unknown risks are also avoided.

    本发明公开了一种用于无人机播撒的涵道压差式粉末喷洒装置,涵道主体包括内层壳体和外层壳体,内壳体的下端位于外层壳体的上方,外层壳体和内层壳体之间形成用于粉末通过的中间腔层,中间腔层的上方设置有进物料的进料口,中间腔层的下方为物料喷出口,内层壳体内为内腔,且内腔内设置有用于产生气压差的风扇,另设置有接通内腔和外层壳体外部的通风窗,通风窗的窗口与中间腔层保持封闭隔离,通风窗设置在风扇的上方,内腔的下方为出风口。本发明利用空气压差进行喷粉,使得粉末和用于搅动空气的扇叶隔离,避免了因为粉末造成扇叶折断和损害的风险,进而免去了相应的维护及成本,也避免了相关的未知风险。


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    Title :

    Duct differential pressure type powder spraying device for unmanned aerial vehicle sowing


    Additional title:

    一种用于无人机播撒的涵道压差式粉末喷洒装置


    Contributors:
    YANG JIAN (author)

    Publication date :

    2020-04-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64C AEROPLANES , Flugzeuge



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