Underwater sealed bearing structure with rotating mechanical shaft

Abstract

An underwater sealed bearing structure with a rotating mechanical shaft comprises a sliding bearing bush, a bearing seat and the rotating mechanical shaft, the sliding bearing bush is composed of two or more bushings and a bush base, the annular bushings are formed by machining composite materials with good abrasion resistance and self-lubricating performance, and the annular bush base is formed by machining steel. The underwater sealed bearing structure for the rotating mechanical shaft has the advantages that the underwater sealed bearing for the rotating mechanical shaft not only can play a role in supporting dynamic and static parts, but also has a water sealing function. By utilizing the adsorption effect of a friction pair interface and the viscous effect of lubricating grease when the rotating mechanical shaft rotates, the sliding friction surface is lubricated for a long time, and meanwhile, water can be effectively prevented from entering the bearing. A plurality of axial inclined grooves are machined in the circumferential surface of a shaft neck, corresponding to the inner diameter of the outer side, of the shaft neck of the rotating mechanical shaft, dynamic pressure is formed while the rotating mechanical shaft rotates, and water can be further prevented from entering. Compared with an existing underwater bearing and sealing structure, the underwater sealed bearing has the advantages of simple structure, low cost, convenience and rapidness in processing and manufacturing and the like.

Description

technical field [0001] The patent of the present invention relates to a sealed bearing structure for supporting and sealing dynamic and static components of an underwater rotating mechanical shaft, which belongs to the field of bearing manufacturing, and is especially suitable for a sealed bearing structure with the functions of supporting and sealing dynamic and static components underwater. Background technique [0002] At present, the underwater main shaft support of domestic and foreign ships adopts rolling bearings or metal tile sliding bearings to undertake the supporting role of moving and static parts, and another sealing part realizes the function of underwater sealing, and the structure is relatively complicated. Once the sealing parts leak, water will enter the inside of the bearing and cause damage to the bearing, and may even lead to serious accidents. Contents of the invention [0003] The purpose of the present invention is to solve the problems existing in ...

AI Technical Summary

Problems solved by technology

[0002] At present, the underwater main shaft supports of ships at home and abroad all use rolling bearings or metal tile sliding bearings to undertake the supporting role of moving and static parts, and another sealing part realizes the function of underwater sealing, and the structure is relatively complicated.

Once the sealing parts leak, water will enter the inside of the bearing and cause damage to the bearing, and may even cause serious accidents

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