Up-and-down symmetrical thrust bearing base for small waterplane catamaran

Abstract

The invention relates to an up-and-down symmetrical thrust bearing base for a small waterplane catamaran, which comprises an upper base and a lower base which are oppositely arranged at an interval, wherein a thrust bearing is arranged in the interval between the upper base and the lower base; the two sides of the outer wall of the thrust bearing extend outwards to form footings; the footings areconnected with the upper base or the lower base through vibration isolators; an upper platform is installed at the top of the upper base; shells are installed on the two sides of the interval betweenthe upper base and the lower base; the upper ends and the lower ends of the shells are fixedly connected with the upper base and the lower base respectively; each shell is of an arc-shaped outwards-protruding structure; and a plurality of reinforcing ribs are fixedly installed on the inner wall face of each shell. The up-and-down symmetrical thrust bearing base is used for static thrust transmission and dynamic excitation force control of the propulsion shafting of the small waterplane catamaran, and provides powerful technical support for radiation noise control of the small waterplane catamaran.

Description

technical field [0001] The invention relates to the technical field of bearing bases, in particular to a vertically symmetrical thrust bearing base for small waterplane area catamarans. Background technique [0002] A small waterplane area catamaran, also known as a semi-submersible catamaran. A small waterplane area catamaran refers to a ship with a small waterline area that is connected by two submersible bodies and an above-water box with two streamlined pillars in the middle. The biggest feature of this ship type is good seakeeping, especially at high speed and high waves, this feature is more obvious. [0003] The small waterplane area catamaran with double submersible structure and good seakeeping performance has been widely used in scientific investigation, noise measurement and other fields. A larger "moon pool" can be designed in the middle of the small waterplane area catamaran, which is conducive to the deployment and recovery of large-scale measuring equipment....

AI Technical Summary

Problems solved by technology

In the prior art, the thrust bearing base is generally installed on one side, which is very easy to generate additional bending moment excitation, and the impedance of the base is small, which easily causes large vibration noise

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