Boring device, boring method and stern shaft mounting method

Abstract

The invention provides a boring device, a boring method and a stern shaft mounting method. The boring device is used for boring a stern shaft tube and comprises a light target bow base point, a light target stern base point, a boring rod, a positioning device, a first supporting frame, a supporting body and a second supporting frame. The stern shaft mounting method comprises the steps that a stern shaft tube main section is built, boring is conducted through the boring device, a bearing bush is pressed to a fifth through hole, the stern shaft penetrates into the bearing bush and the fifth through hole, and a propeller is installed at one end of the stern shaft. The problems that an existing boring rod is prone to bending deformation in the horizontal boring process, the boring quality is poor and precision is low due to the fact that the center axis of the boring rod cannot be aligned with the theoretical center of a shaft system, the shaft system cannot be installed in advance due to the fact that existing boring operations cannot be conducted on a stern shaft tube main section platform, and the construction period is affected are solved.

Description

technical field [0001] The invention relates to a ship shafting installation method, in particular to a boring device, a boring method and a stern shaft installation method. Background technique [0002] A ship is a high-tech integrated mainframe, pipe, electricity, and instrumentation product. Shortening the construction period of a ship in a dock is an extremely important means for shipbuilding companies to shorten the construction period of a ship. Due to the irreversibility of machining, the shaft center line formed after the ship’s stern tube is bored is the actual center line of the ship’s shaft system. Both are based on the actual centerline of the shafting system, so the boring accuracy of the stern tube is very important. The inventor found in the research: 1) When boring the stern tube of the ship during the dock stage, the boring row is generally placed horizontally for boring. Since the boring bar is generally long, the self-gravity of the boring bar will cause ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is that the existing boring bar is easily bent and deformed when boring horizontally, and the central axis of the boring bar cannot be aligned with the theoretical center of the shaft system, resulting in poor boring quality and low precision. The boring operation cannot be carried out on the platform of the stern tube general section, so the shafting cannot be installed in advance, which affects the construction period

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