The invention relates to the technical field of aviation, and particularly discloses a tension-torsion strip and a main rotor system. The pulling and twisting strip comprises a pulling and twisting strip shell, a mounting cavity which is arranged in the pulling and twisting strip shell and is of an annular structure, two groups of steel sleeves which are mounted on the pulling and twisting strip shell, and a pulling and twisting piece which sleeves the mounting cavity; the mounting cavity is of a waist-shaped annular structure; comprising two arc sections which are the same in structure and symmetrically arranged and a straight section used for connecting the two arc sections. The two sets of steel sleeves are arranged in the length direction of the straight section, and the axis connecting line and the circle center of the arc section are located on the same straight line. The invention further discloses a main rotor system based on the tension-torsion strip. The tension-torsion strip has good tensile bearing capacity, reliability is improved, torsional rigidity is improved, self-adaptive resetting can be achieved, and then good restoring capacity is achieved; and the propeller hub and the propeller hub support arm are integrally formed, so that the mounting precision is effectively improved, and the fatigue life of the rotor wing is prevented from being shortened due to mounting errors.

    本发明涉及航空技术领域,具体公开了一种拉扭条及主旋翼系统;拉扭条包括拉扭条壳体、设置在拉扭条壳体内部且呈环形结构的安装腔、安装在拉扭条壳体上的两组钢套、以及套装在安装腔上的拉扭件;所述安装腔呈腰型环状结构;包括两组结构相同且对称设置的圆弧段、用于连接两组圆弧段的直段;两组所述钢套沿直段的长方向设置且轴心连线与圆弧段的圆心在同一直线上。以及公开了基于该拉扭条的主旋翼系统;本发明中的拉扭条具有良好的抗拉承载能力,提高可靠性,并提高扭转刚度,能够具有自适应复位,就有良好的回复能力;通过桨毂与桨毂支臂一体成型,有效的提高了安装精度,防止由于安装误差导致的旋翼疲劳寿命降低。


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    Title :

    Tension and torsion strip and main rotor system


    Additional title:

    一种拉扭条及主旋翼系统


    Contributors:
    JIN XI (author) / ZENG DONG (author) / LIU SHUAI (author) / PENG JUN (author) / WANG LINTAO (author) / WANG ZHAO (author) / HU YIFAN (author)

    Publication date :

    2023-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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