A magnetic thrust combined bearing for an underwater generator

Abstract

A magnetic thrust combined bearing for an underwater generator comprises a magnetic bearing seat A, a magnetic bearing seat B, and a group of balls mounted on a cage. Magnetic rings are installed on the magnetic bearing seats A and B respectively. The first annular end surface on the rear end surface of the magnetic bearing seat B has a first annular raceway and a retainer groove. There is a second annular raceway on the front end surface of the magnetic bearing seat B. The cage is arranged in the groove of the cage, and a plurality of balls are sandwiched between the first ring-shaped raceway and the second ring-shaped raceway on the magnetic force bearing seat A and the magnetic force bearing seat B. The invention has maintenance-free, self-lubricating, stain-resistant and corrosion-resistant properties, and can reduce the problem of power loss caused by extra friction caused by the increase of axial force in traditional bearings. In extreme cases, there is no gap between two magnetic bearing seats. Direct contact prolongs bearing life.

Description

technical field [0001] The invention relates to a bearing, in particular to a magnetic thrust combined bearing. Background technique [0002] The international energy crisis and continuous environmental degradation are common problems faced by the whole world. It is an inevitable choice for all mankind to develop new energy sources, research new energy-saving technologies, and take the road of sustainable development. Ocean energy is the largest reserve energy on the earth. It originates from the gravitational force of the sun and the moon, the radiation of the sun and the rotation of the earth. Natural energy that can be developed and utilized. Due to its huge reserves, ocean energy has broad application prospects and commercial prospects. [0003] The bearing group is an important part of ocean energy generating devices such as ocean tidal current energy and wave energy. The traditional bearing group is composed of support frames, balls, rollers, etc. made of metal mate...

AI Technical Summary

Problems solved by technology

The traditional bearing group is composed of support frames, balls, rollers, etc. made of metal materials. Even if the dynamic seal is relatively good, it is difficult to work reliably for a long time under harsh working conditions such as electrochemical corrosion in seawater and fine sand suspended in seawater. , and requires lubricating oil lubrication and maintenance, and non-metallic bearing groups such as ceramic bearings are difficult to withstand large load impacts, etc. Therefore, a new type of bearing that can fully adapt to seawater immersion environments, can withstand instantaneous large load impacts, and can be used for a long time Reliable working bearing set

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