Securing method and securing apparatus for bearing housing

摘要

Turbine casings LP1, PL2 and HP are secured to storing spaces S1 to S3 formed in a concrete frame 12. Cubic blocks 16, 40 and 80 are secured to depressions C2, C3 and C1 respectively. The cubic block 16 has transverse anchors 20a and 20b projecting upward from an upper wall 18. A bearing housing 35 for supporting a rotor shaft 34 rotatably is positioned and secured by transverse anchors 22a and 22b in a direction perpendicular to a rotor shaft (a direction of an arrow a).

主权项

1. A method of securing a bearing housing in which the bearing housing for a rotation shaft of a rotary machine is positioned and secured on a concrete frame by an anchor member projecting from a supporting surface of the concrete frame, the method comprising the steps of:
preparing a cubic block which has rigidity and has one pair of opposing surfaces that are open, an inner space for receiving concrete and the anchor member projecting upward at the end of the upper wall; housing the cubic block in a depression which is formed on the supporting surface of the concrete frame facing a storing space of the rotary machine, in such a state that the anchor member projects on a side of the storing space from the supporting surface of the concrete frame; placing concrete in the inner space of the cubic block so that the cubic block is positioned and secured to the concrete frame; and locking the bearing housing by the anchor member so that the bearing housing is positioned and secured to the concrete frame in a direction perpendicular to the rotation shaft.