Shafting bearing vibration-reducing base for ship bulkhead

Abstract

The invention discloses a shafting bearing vibration-reducing base. The shafting bearing vibration-reducing base comprises a shaft and a bulkhead supporting the shaft; the shaft is sleeved by a pair of adapter sleeves; threads are arranged at the top ends of the adapter sleeves; the adapter sleeves are sleeved by bearings; inner rings of the bearings are compressed by locking nuts; the outer sides of the bearings are sleeved by a base body; transparent covers are arranged at two ends of the base body; and dustproof rings are arranged between the transparent covers and the shaft. The shafting bearing vibration-reducing base further comprises a pair of truncated cone-shaped vibration-reducing covers sleeving the outer sides of the base body; the vibration-reducing covers are fixed on the base body; the bottoms of the vibration-reducing covers are mounted on the bulkhead through annular flanges; and the vibration-reducing covers are multilayer connecting pieces formed by metal wire net block layers and elastic metal diaphragm layers at intervals. The shafting bearing vibration-reducing base can be applied to a ship propelling shafting, is convenient to install and small in occupied space, has dual functions of reducing transverse and radial vibrations of the shafting and performing water sealing among cabins, is suitable for severe environments with high temperature and oil stains in the ship cabins, and is long in service life and excellent in vibration-reducing effect compared with such traditional vibration-reducing devices as rubber.

Description

technical field [0001] The invention relates to a bearing vibration damping base, in particular to a shafting bearing vibration damping base used for ship bulkheads, and belongs to the technical field of vibration damping bearings. Background technique [0002] The vibration of ship shafting bearings is one of the main sources of ship noise excitation and a harmful factor affecting the vitality of ships. Ship shafting bearings play the role of fixing and supporting the shafting in the process of mechanical transmission, and are an important part of mechanical equipment. During the operation of the ship, the shafting is susceptible to axial vibration caused by factors such as propeller pulsating thrust, and radial vibration caused by factors such as centrifugal force caused by unbalanced rotating mass. However, traditional bearings and mounting bases The damping loss factor is small, and it is difficult to consume the vibration energy generated by the shafting, which causes ...

AI Technical Summary

Problems solved by technology

This structure can reduce the longitudinal stiffness of the shafting, reduce the longitudinal natural frequency of the shafting, stagger the resonance with the propeller, and reduce the transmission of the longitudinal vibration of the shafting, but its overall structure is complex and has little effect on the radial vibration

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