BLADE FIXING STRUCTURE OF VERTICAL AXIS WIND TURBINE

• Main Authors: HARA YUTAKA, HIGAMI HIROYUKI, ISHIKAWA HIROMITSU, BOKU GYOKUTAN, SAITO EITOKU, ONO TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 29.09.2023
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

To provide a blade fixing structure of a vertical axis wind turbine that easily and securely assembles a rotary shaft and blades so as to correspond to the enlargement of a wind turbine itself and an increase in an installation number.SOLUTION: A vertical axis wind turbine is equipped with a rotary shaft 2 that rotates around a vertical axis with respect to a direction receiving wind, a generating portion 6 that is coupled to the rotary shaft 2 through a bearing portion 3, and a plurality of blades 10 that is coupled to the rotary shaft 2 and rotates around the vertical axis. On an outer peripheral surface of the rotary shaft 2, a bracket 20 made of aluminum extruded material is fixed in a longitudinal direction of the rotary shaft 2, and on an outer peripheral surface of the bracket 20, structural member end portions of blades 10 are fixed in an abutting state.SELECTED DRAWING: Figure 2 【課題】風車自体の大型化及び設置数の増加に対応すべく回転軸と翼の組付けを容易かつ強固にした垂直軸風車の翼固定構造を提供すること。【解決手段】風を受ける方向に対して垂直な軸周りに回転する回転軸２と、回転軸２に軸受部３を介して連結される発電部６と、回転軸２に連結されて垂直軸周りに回転する複数の翼１０とを具備する垂直軸風車において、回転軸２の外周面に、アルミニウム製押出形材からなるブラケット２０を回転軸２の長手方向に沿って固定し、ブラケット２０の外周面に、翼１０の構成部材端部を当接した状態で固定する。【選択図】 図２