To provide a fitting structure for a composite material hollow rotary vane, which can be suitably applied to the fitting structure for a rotary vane for an urban air mobility (UAM) flying object, can prevent rotation (turning) of the rotary vane itself in a cross-section peripheral direction more surely, and can prevent removal from a rotary-driving member side caused by a centrifugal force more surely.SOLUTION: This fitting structure for a composite material hollow rotary vane is for fitting, to a rotary-driving member side, a composite material hollow rotary vane made of a thermosetting resin and a reinforced fiber and having a vane root connected to the rotary-driving member side in a vane length direction and a vane tip forming a free end of a side opposite to the vane root, and having a hollow part therein. A fitted part of the vane root to the rotary-driving member side is roughly formed into an outer polygonal shape on a cross-section. A projection or a groove is formed in the outer surface of the fitted part so as to extend in an outer peripheral direction. A connected part of the rotary-driving member side to the vane root is formed into a split structure which can pinch the fitted part of the vane root. In the inner surface of the connected part, a groove or a projection is formed so as to extend in an inner peripheral direction and to be engaged with the projection or the groove in the outer surface of the fitted part of the vane root.SELECTED DRAWING: Figure 2
【課題】UAM用飛行体向けの回転翼の取付構造に好適に適用でき、回転翼自身の横断面周方向の回転(回動)をより確実に防止できるとともに、遠心力による回転駆動部材側からの抜けをより確実に防止できる複合材中空回転翼の取付構造を提供する。【解決手段】翼長方向に回転駆動部材側に連結される翼根元部とそれとは反対側の自由端を形成する翼先端部を有するとともに、内部に中空部を有し、熱硬化性樹脂と強化繊維からなる複合材中空回転翼を、回転駆動部材側に取り付ける構造であって、前記翼根元部の回転駆動部材側への取付部は、その横断面における外形が略多角形に形成されるとともに、該取付部の外面に、外周方向に沿って延びる突条又は溝が形成され、前記回転駆動部材の翼根元部への連結部は、前記翼根元部の取付部を挟みこみ可能な分割構造に構成され、該連結部の内面には、内周方向に沿って延び前記翼根元部の取付部の外面における前記突条又は溝と係合する溝又は突条が形成されていることを特徴とする複合材中空回転翼の取付構造。【選択図】図2
FITTING STRUCTURE FOR COMPOSITE MATERIAL HOLLOW ROTARY VANE
複合材中空回転翼の取付構造
2023-12-01
Patent
Electronic Resource
Japanese
IPC: | B64C AEROPLANES , Flugzeuge |