A water-lubricated rubber stern bearing and its design method

Abstract

The invention discloses a design method for a water lubricated rubber stern bearing. According to the method, axial hardness division is performed on a traditional slat-type water lubricated rubber stern bearing, a rubber bearing bush of the traditional slat-type water lubricated rubber stern bearing is divided into a plurality of regions from the stern end to the front end, the hardnesses of rubber from the stern end to the front end are sequentially increased, and the length of a region close to the front end is the longest, so as to enable the water lubricated rubber stern bearing to adapt to actual load and improve the contact pressure performance of the bearing. The invention further provides the water lubricated rubber stern bearing. According to the method, the whole long stern bearing is divided into the regions with different hardnesses based on a pressure distribution feature of the water lubricated rubber stern bearing, so that the pressure distribution of the water lubricated rubber stern bearing is remarkably improved, the contact regions are effectively extended in the circumferential direction, and the contact performance of the stern bearing is well improved as a whole.

Description

technical field [0001] The invention belongs to the design field of stern bearings in ship shafting, and more specifically relates to a water-lubricated rubber stern bearing and a design method thereof. Background technique [0002] The stern bearing is an important equipment of the ship's shafting system, which bears most of the weight of the propeller and is an important part of ensuring the normal operation of the ship's shafting system. Ship stern bearings have successively gone through stages such as iron plowed wooden stern bearings, alloy stern bearings, and rubber stern bearings. The water-lubricated rubber stern bearing has a simple structure and is easy to manufacture, install and maintain; it is lubricated by water and will not cause pollution caused by lubricating oil leakage; The application in ships is more and more extensive. [0003] However, the water-lubricated rubber stern bearing itself also has certain deficiencies. Since the stern bearing bears the c...

AI Technical Summary

Problems solved by technology

The traditional slatted rubber stern bearing adopts the same hardness of rubber material along the axial direction. Due to the cantilever action of the propeller, the pressure distribution of the bearing bush is uneven.

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