THRUST GENERATOR

• Main Authors: KUMAGAI HIROYASU, GUNJI DAISUKE
• Format: Patent
• Language: English; Japanese
• Published: 27.09.2021
• Subjects: AEROPLANES; AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; COSMONAUTICS; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; HELICOPTERS; PARACHUTES; PERFORMING OPERATIONS; TRANSPORTING

To change propeller parts according to the required thrust, while minimizing the increase in manufacturing costs.SOLUTION: A thrust generator comprises: a thrust generating motor that rotates a plurality of rotors; pitch angle changing motors that change pitch angles of the rotors; a first motion conversion part that converts rotation of the pitch angle changing motor into a linear motion of a linear motion shaft; and a second motion conversion part that changes the pitch angle of the rotor. The second motion conversion part comprises: a plurality of grips that respectively supports the rotors; a second motion conversion mechanism that converts the linear motion of the linear motion shaft into rotational motion of the plurality of grips; and a plurality of radial bearings that rotatably supports inner ends of the grips, respectively. A hub has a case for accommodating the inner ends of respective grips, a second motion conversion mechanism, and the respective radial bearings. Each grip can be changed with the second motion conversion mechanism and each radial bearing left in the hub.SELECTED DRAWING: Figure 16 【課題】製造コストの増加を最小限にしつつ、要求される推力に応じて、プロペラの部品を変更する。【解決手段】推力発生装置は、複数の回転翼を回転させる推力発生モータと、回転翼のピッチ角を変更するピッチ角変更モータと、ピッチ角変更モータの回転を直動軸の直線運動に変換する第１の運動変換部と、回転翼のピッチ角を変更する第２の運動変換部を備える。第２の運動変換部は、回転翼をそれぞれ支持する複数のグリップと、直動軸の直線運動を複数のグリップの回転運動に変換する第２の運動変換機構と、グリップの内側端部をそれぞれ回転可能に支持する複数のラジアル軸受とを備える。ハブは、各グリップの内側端部と、第２の運動変換機構と、各ラジアル軸受を収容するケースを有する。第２の運動変換機構と各ラジアル軸受をハブに残した状態で、各グリップが変更可能である。【選択図】図１６