Method for repairing or replacing intermediate bearings in connecting state of ship shafting flanges

Abstract

The invention discloses a method for repairing or replacing intermediate bearings in a connecting state of ship shafting flanges, and relates to the field of ships. The method comprises the following steps: a dial indicator is fixed near each intermediate bearing, and temporary supports are fixed near all the intermediate bearings to be repaired or replaced; the detached intermediate bearings are repaired, or new intermediate bearings are prepared; the intermediate bearings are remounted; each set of flanges is centered; the pre-jacking is performed for a left shafting and a right shafting; epoxy resin gaskets are cast between the intermediate bearings and corresponding bases; and the jacking test is performed for the left shafting and the right shafting. The method can reduce the workload of detaching and remounting the shafting flanges, can simplify the shafting centering construction technology process in the remounting of the intermediate bearings, and enables quick recovery of the shafting centering state after the remounting of the intermediate bearings, so that the risk of incapability of recovering the centering state of the shafting after the disconnection of the flanges is effectively prevented, and the risk of wastes of base panels of gear boxes with thrust bearings inside is further prevented.

Description

technical field [0001] The invention relates to the field of ships, in particular to a method for repairing or replacing an intermediate bearing when the shafting flange of the ship is in a connected state. Background technique [0002] see figure 1 As shown, the ship's main propulsion device includes shafting (left shafting and right shafting). Shafting centering construction takes the stern shaft as the reference, and checks and adjusts the stern shaft and the intermediate shaft, the distance between the intermediate shaft and the The meandering and offset value between the intermediate shaft and the gearbox should be within the range of the theoretical value in the shafting alignment calculation book, and the pre-lifting, jacking and shafting method of the shafting should be carried out before and after the positioning and installation of the intermediate bearing and the gearbox LAN connection, and then proceed with the location and installation of the host in turn. Onc...

AI Technical Summary

Problems solved by technology

Although this method can visually detect the alignment of the shafting system, it also needs to disconnect the shafting flange, and there is also a major technical risk that the shafting alignment state cannot be restored, which may directly lead to the scrapping of the gearbox base

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