A seesaw type fixed-pitch propeller adopts two blades, the included angle between the two blades is 180 degrees, the pitch of the blades is fixed, the two blades and a propeller hub are connected into a whole and share a horizontal hinge, a flat through hole is formed in the middle of the propeller hub from top to bottom, and the through hole is communicated with the horizontal hinge. A driving shaft of the seesaw type fixed pitch propeller can penetrate into the flat through hole; a horizontal reaming hole is formed in the middle of the propeller hub, a shaft horizontal round through hole is formed in a driving shaft of the seesaw type fixed pitch propeller, a horizontal connecting shaft penetrates through the horizontal reaming hole in the middle of the propeller hub and is inserted into the shaft horizontal round through hole of the driving shaft of the seesaw type fixed pitch propeller, and the propeller hub is horizontally hinged to the driving shaft of the seesaw type fixed pitch propeller. The blades can swing up and down around the horizontal connecting shaft, in the blade swinging process, the lift force difference between the left forward blade and the right backward blade is reduced, the alternating bending moment of the roots of the blades is eliminated, the propeller is applied to a helicopter with multiple fixed pitch propellers, the service life of the blades is prolonged, and the horizontal flight speed is increased.

    一种跷跷板式定距螺旋桨,跷跷板式定距螺旋桨采用两片桨叶,两片桨叶的夹角是180°,桨叶的桨距是固定的,两片桨叶与桨毂连成一体,共用一个水平铰,桨毂的中间由上向下设置一个扁形通孔,跷跷板式定距螺旋桨的驱动轴可以穿入该扁形通孔;桨毂的中间设置一个水平铰孔,在跷跷板式定距螺旋桨的驱动轴上设置一个轴水平圆通孔,水平较接轴穿过桨毂中间的水平铰孔,插入跷跷板式定距螺旋桨的驱动轴轴水平圆通孔,将桨毂水平铰接在跷跷板式定距螺旋桨的驱动轴上;桨叶可绕水平较接轴上下挥舞,在桨叶挥舞的过程中,减少了左边前行桨叶和右边后行桨叶的升力差,并消除了桨叶根部的交变弯矩,应用于多定距螺旋桨直升机,延长桨叶寿命,提高水平飞行速度。


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    Titel :

    Seesaw type fixed pitch propeller


    Weitere Titelangaben:

    跷跷板式定距螺旋桨


    Beteiligte:
    JIANG FUYU (Autor:in)

    Erscheinungsdatum :

    2022-03-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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