| 摘要 |
PROBLEM TO BE SOLVED: To use a steel material as a material of a bearing ring of a roller bearing and measure the attitude of a roller at the time when the roller bearing is rotating.SOLUTION: A roller attitude measurement device comprises: first transmission means 31, 35 which transmits the first ultrasonic waves propagating in a bearing ring 11 on one end in the axial direction of a roller 29; second transmission means 32, 36 which transmits the second ultrasonic waves propagating in the bearing ring 11 on the other end in the axial direction of the roller 29; first reception means 33, 37 which receives the first echoes obtained with reflection of the first ultrasonic waves; second reception means 34, 38 which receives the second echoes obtained with reflection of the second ultrasonic waves; and measurement means which measures the attitude of the roller on the basis of the signals of the first echoes received by the first reception means and the signals of the second echoes received by the second reception means.SELECTED DRAWING: Figure 3 |
