| 摘要 |
PROBLEM TO BE SOLVED: To accurately measure residual vibration of a belt. SOLUTION: This residual vibration measuring device comprises pulleys 3 and 4 for extending the belt 2 for measurement, a stepping motor 6 for rotating and driving a pulley shaft 5 of the driving side pulley 3, an arm 8 fixed to a pulley shaft 7 of the driven side pulley 4, an inertia load 9 fixed to the tip of the arm 8, a laser displacement gauge 11 that is disposed facing to the inertia load 9 at a rotation origin position O of this inertia load 9 and detects a vibration width of the inertia load 9 near the origin position O, and encoders 13 and 14 disposed on respective pulley shafts 5 and 7. The laser displacement gauge 11 measures a vibration damping of the belt when the driving side pulley 3 is reversely rotated by a predetermined angle by the stepping motor 6 to stop the inertia load 9 at the origin position O.
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