| 摘要 |
PURPOSE:To grasp a roll profile perfectly, by moving three displacement detectors, which are arranged at an equal interval L from one end part of the roll to the other end, and operating the data measured by the three displacement detectors at every moving distance L. CONSTITUTION:Three displacement detectors A, B and C are arranged in the axial direction of a roll 1 at an equal interval L. The detectors are moved along a guide surface 3 in approximately parallel with the axial center of the roll 1. The measured values on the generator of the inner tube of the same roll are obtained at every moving distance by the detectors A, B and C. The positions of the displacement detectors shown by solid lines are made to be the measurement starting position. The measurements are continued up to the positions shown by broken lines in the direction of an arrow. The (K+2)-th error XK+2 in straightness is computed by the expression XK+2=2.XK+1-XK-2.DK-1.C+ DK-2.C+2.DK.B-DK.A+2Y0, where DK.A, DK.B and DK.C are measured values by the displacement detectors A, B and C at the K-th measuring positions; X0, X1,...XK are errors in straightness of the guide surface 3 in correspondence with the positions; and Y0, Y1,...YN are the roll profile errors. |
