To provide a thrust generator capable of reducing impact of an external environment to a bolt, when the bolt is used on the thrust generator.SOLUTION: A thrust generator comprises: a rotary wing which can rotate around a prescribed axis; a hub which is provided on the prescribed axis, and supports the rotary wing; a first motor which is fixed to the hub by a fixing member, and rotates the hub around the prescribed axis; a second motor which is provided in the vicinity of the first motor and generates rotation motion for changing a pitch angle of the rotary wing; a first conversion part for converting the rotation motion of the second motor into linear motion; and a second conversion part for converting the linear motion obtained by conversion by the first conversion part into the rotation motion for changing the pitch angle. At least a part of the first conversion part is stored in the first motor, at least a part of the second conversion part is stored in the hub, the hub has a hollow part at an inside thereof, and a fixing member extends from the hollow part toward the first motor.SELECTED DRAWING: Figure 13
【課題】推力発生装置においてボルトが使用される場合、ボルトに対する外的環境の影響を低減すること。【解決手段】推力発生装置は、所定の軸を中心に回転可能な回転翼と、前記所定の軸上に設けられ、前記回転翼を支持するハブと、固定部材により前記ハブに固定されて、前記ハブを前記所定の軸回りに回転させる第1モータと、前記第1モータの近傍に設けられ、前記回転翼のピッチ角を変化させる回転運動を発生させる第2モータと、前記第2モータの回転運動を直線運動に変換する第1変換部と、前記第1変換部で変換された直線運動を、前記ピッチ角を変化させる回転運動に変換する第2変換部とを備え、前記第1変換部の少なくとも一部は前記第1モータ内に収容され、前記第2変換部の少なくとも一部は前記ハブ内に収容され、前記ハブは内部に中空部を有し、前記固定部材は前記中空部から前記第1モータに延びる。【選択図】 図13
THRUST GENERATOR
推力発生装置
2021-09-27
Patent
Electronic Resource
Japanese