LOAD DISTRIBUTION MEASURING METHOD AS TO INNER RING FOR DISTORTION SENSOR BUILT-IN TYPE ROLLING BEARING, AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a load distribution measuring method for a distortion sensor built-in type rolling bearing as to an inner ring capable of finding precisely a load distribution of the rolling bearing, by a measuring device of simple constitution, and an apparatus therefor.;SOLUTION: This load distribution measuring method for the distortion sensor built-in type rolling bearing as to the inner ring is provided with a thin hole 2A along an axial direction in the vicinity of a raceway track face of the inner ring 2 fixed to a rotary shaft 1 of the rolling bearing, is arranged with the optical fiber distortion sensor 3 in the thin hole 2A, draws out an output signal from the optical fiber distortion sensor 3 by an optical fiber 9, connects the optical fiber 9 to a distortion measuring instrument 12 via a single rotary joint 11 arranged along an axial direction of the rotary shaft 1 and supported by a support body 10 fixed to the rotary shaft 1, and detects a distortion when a rolling element 4 passes a position of the optical fiber distortion sensor 3.;COPYRIGHT: (C)2009,JPO&INPIT