Method for assembling large crane bearing and ship hull

Abstract

The invention discloses a method for assembling a large crane bearing and a ship hull. The method comprises the following steps of machining a mounting hole of the ship hull; mounting the crane bearing in the mounting hole of the ship hull; forming a gap between an outer race of the crane bearing and the ship hull; mounting a baffle on a lower side surface of the crane bearing; shielding the gap by using the baffle; filling liquid rubber to the gap from the upper side surface of the crane bearing; and solidifying the liquid rubber so as to form a tolerance correction and energy absorbing layer. The hole diameter of the mounting hole is greater than the diameter of the outer race of the crane bearing. According to the method for assembling the large crane bearing and the ship hull, a rubber layer is filled between the outer race of the crane bearing and the mounting hole of the ship hull, a rigidness and flexibility alternate matching mode is adopted, the tolerance of the structure is eliminated, inferences on the crane bearing due to structural deformation of the ship hull can be avoided when the crane bearing is used, and the possibility that the structure of the ship hull deforms due to acting force of the crane bearing is reduced.

Description

technical field [0001] The invention relates to a method for assembling a large bearing, in particular to a method for assembling a large bearing used in a large crane and a ship body. Background technique [0002] Large-scale offshore cranes (thousand-ton class) are mostly supported by two upper and lower crane bearings, and the crane main shaft rotates in the hull structure through the crane bearings. The outer diameter of the bearings used in this crane is mostly about 10 meters, and the distance between the upper and lower bearings is about 30 meters. Therefore, the control of the tolerance of the contact position between the bearing and the hull structure is very strict, and generally needs to be within 8-20 mm. [0003] For the hull structure, there are the following requirements. First, the processing tolerance of the matching hull structure must be controlled within the tolerance range of 8-20 mm to ensure that the crane can be installed normally. Bearings with suc...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high processing accuracy, high processing difficulty and high cost at the position where the existing crane bearings are in contact with the hull structure, and provide a method for assembling large crane bearings, which is simple in form and convenient in construction , easy to promote

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