| 摘要 |
PROBLEM TO BE SOLVED: To provide a moving vane operation device capable of further simply carrying out work such as maintenance, with a simple structure.SOLUTION: A moving vane operation device is equipped with: a link mechanism which rotates a moving vane; an operation rod coupled to the link mechanism, rotated with a rotary shaft, and capable of moving in an axial direction; and an axial direction moving device which moves the operation rod in the axial direction. The operation rod projects out to an end portion on a vertical direction upper side than a main shaft. The axial direction moving device has: an operation liquid cylinder which is equipped with a piston disposed at an end portion on the opposite side to an end portion at which the link mechanism of the operation rod is installed, rotated with the operation rod, and coupled to the operation rod, and a cylinder on which the piston is disposed; a shaft joint which is connected to the operation liquid cylinder, has a rotary portion rotated with the operation liquid cylinder and a supporting portion rotatably supporting the rotary portion, and is formed with a conduit circulating an operation liquid between the rotary portion and the supporting portion; and an operation liquid supply device capable of supplying the operation liquid to both sides of the piston of the cylinder through the shaft joint.SELECTED DRAWING: Figure 1 |
