METHOD AND DEVICE FOR ALIGNMENT OF A SHAFT

摘要

The present invention relates to a method and a device for aligning shaft sections at a shaft (7) consisting of several parts with the shaft sections joined by means of couplings (A-D) and the shaft journalled in bearings (1-6) on each side of the couplings. Strain gauges (11, 12) are fixed to each side of each coupling. Measured values indicating the strain at each shaft coupling are transmitted to a unit (EVAL) which evaluates the bending moment in the centre of the respective coupling. The bending moment values for each coupling section are then utilized in a moment minimization unit (MINMOM) and/or a third unit (LAZY) which utilizes indications of allowed angular deviations for each coupling to minimize the bearing movements which have to be made to get the angular deviations of all the couplings (A-D) within given tolerances.