Assembling and welding method of side thrust device

Abstract

The invention relates to the technical field of ship construction, in particular to an assembling and welding method of a side thrust device. The assembling and welding method of the side thrust device comprises the steps that lofting is conducted so as to machine extension pipes, and four generatrices of each extension pipe are drawn; by making the four generatrices of each extension pipe as benchmarks, bearing blocks, annular reinforcing rib plates, longitudinal reinforcing rib plates and motor fixing bases are assembled and welded to constitute two side thrust seal cover modules; the side thrust seal cover modules are integrally annealed so as to eliminate welding stress, and the inner surfaces of the bearing blocks and the upper surfaces of the motor fixing bases are machined; the two side thrust seal cover modules are welded to two sides of a side thrust cylinder body respectively, and after welding is finished, the side thrust seal cover modules and the side thrust cylinder body are integrally assembled and welded in a segmented mode; after a slipway is folded, the integral segment comprising the side thrust seal cover modules and the side thrust cylinder body is provided with blades, a shaft, a bearing assembly, a seal part, a transmission mechanism and a driving mechanism. The assembling and welding method of the side thrust device can avoid welding deformation of the side thrust device, guarantee concentricity of bearings and shorten the period of ship construction.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a method for assembling and welding a lateral thruster. Background technique [0002] The marine science comprehensive survey ship is a modern marine science comprehensive survey ship that meets the requirements of unlimited navigation areas and has global navigation capabilities. Provide offshore mobile laboratories and test platforms for basic marine science research and high-tech research and development in the deep sea and oceanic areas of the country. To meet the above functions, many acoustic devices are installed on the bottom of the ship. The acoustic devices have extremely high requirements on the water flow environment at the bottom of the ship. In order to improve the maneuverability of the ship, a bow thruster is installed at the bow of the ship. In the horizontal cylinder at the bottom, the cylinder greatly increases the air bubbles in the turbulent layer at th...

AI Technical Summary

Problems solved by technology

To meet the above functions, many acoustic devices are installed on the bottom of the ship. The acoustic devices have extremely high requirements on the water flow environment at the bottom of the ship. In order to improve the maneuverability of the ship, a bow thruster is installed at the bow of the ship. In the horizontal cylindrical body at the bottom, the cylindrical body greatly increases the air bubbles in the turbulent layer at the bottom of the ship, which seriously interferes with the normal operation of the acoustic equipment at the bottom of the ship and affects its measurement accuracy.

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