| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a shaft voltage occurring in a shafting of a rotary machine while suppressing an increase in the size of rotary machine.SOLUTION: A rotary machine 1 comprising a rotation axis 40 rotatably provided at a casing 30, comprises: an end board 35 provided at an axial direction one end side of the casing 30; a recessed part 35a which is formed onto the end board 35 and recessed to an internal side of the casing; an insertion hole 35b which is formed to the recessed part 35a and inserts one end part 41 of the rotation axis 40; and an axial grounding device 70 which is provided at the recessed part 35a and eliminates a shaft voltage occurring at the rotation axis 40 while contacting with the one end part 41 of rotation axis 40 inserted into the insertion hole 35b.SELECTED DRAWING: Figure 1 |
