The invention discloses a helicopter blade protection method which comprises the following steps: performing sectional film pasting protection on the outer surface of one side, close to a windward side, of a wing-shaped section of a blade by adopting a plurality of polyurethane protection films; in the wingtip part of the blade, due to the special radian of the surface of the wingtip and the highest linear speed of the wingtip in the whole blade, manufacturing a protective sleeve through blister forming according to the shape of the wingtip, installing the protective sleeve on the wingtip forprotection, and fully protecting the windward side and the wingtip part, prone to corrosion, of the whole blade. According to the invention, sectional film protection is adopted for the airfoil section, so that the durability of the blade in a severe environment is improved, the damage of the blade is easy to discover and the blade can be repaired by using a small protective film, the maintenanceand replacement time period of the blade is shortened, the operation is simple, and the use efficiency of an airplane is improved.

    本发明公开了一种直升机桨叶的防护方法,包括如下步骤,在桨叶的翼型段靠近迎风面的一侧的外表面采用若干块聚氨酯防护膜进行分段式贴膜保护;在桨叶的翼尖部分,由于翼尖表面的特殊弧度和其在整个桨叶中线速度最高,根据翼尖的形状采用吸塑成型制得保护套,并将保护套安装于翼尖上进行保护,充分保护整个桨叶易受腐蚀的迎风面和翼尖部分;本发明通过在翼型段采用分段式的贴膜保护,提高桨叶在恶劣环境下的耐用性,且当桨叶出现破损时易于发现,并可用小块保护膜进行修补,降低桨叶维修更换时间周期,操作简单,提高飞机的使用效率。


    Access

    Download


    Export, share and cite



    Title :

    Helicopter blade protection method


    Additional title:

    一种直升机桨叶的防护方法


    Contributors:
    LI YABING (author)

    Publication date :

    2020-04-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



    Wireless power transfer with helicopter rotor blade ice protection

    Brunetti, M. / Chatterton, S. / Toscani, N. et al. | IEEE | 2020


    HELICOPTER ROTOR BLADE

    NEKRASOV VLADIMIR IVANOVICH | European Patent Office | 2016

    Free access

    Helicopter blade flapping

    Tapscott, R.J. / Gustafson, F.B. | Engineering Index Backfile | 1955


    Helicopter blade tips

    Lyothier, R. | NTRS | 1983


    Helicopter Blade Flutter

    N. D. Ham | NTIS | 1973