STATE MONITORING DEVICE FOR ROTARY MACHINE

摘要

PROBLEM TO BE SOLVED: To accurately detect occurrence of misalignment.;SOLUTION: A state monitoring device 80 comprises a light projecting part 83, a light receiving part 86, a mirror 85, a rotation detection plate 84 and a monitoring part 88. The light projecting part 83 and the light receiving part 86 are fixed at a non-rotation portion of a speed-increasing gear 40. The mirror 85 reflects light from the light projecting part 83 toward the light receiving part 86. The rotation detection plate 84 is attached to an input shaft 61. The rotation detection plate 84 rotates together with the input shaft 61 when the input shaft 61 rotates and repeats the state in which light from the light projecting part 83 is reflected toward the light receiving part 86 by the mirror 85 and the state in which light from the light projecting part 83 is not reflected toward the light receiving part 86 by the mirror 85.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2017,JPO&INPIT