Steam turbine bearing

Abstract

The invention belongs to the technical field of machinery, in particular, relates to a steam turbine bearing, and solves such technical problems as unreasonable design in the prior art. The steam turbine bearing comprises two bearing pads capable of splicing as a cylindrical body; annular thrust surfaces are respectively arranged at two ends of the cylindrical body; an inner lubricating structure is arranged on the inner side of the cylindrical body, and is connected with an oil supply structure arranged on the cylindrical body and capable of supplying oil to the inner lubricating structure; a thrust surface lubricating structure is arranged on the annular thrust surface; and the inner lubricating structure and the thrust surface lubricating structure are connected through an oil separation structure arranged on the cylindrical body. The steam turbine bearing has the following advantages: (1) the design is more reasonable; an oil film is formed between the bearing and a shaft body; the thrust surfaces always can be stably lubricated to effectively prevent wear thereof; and the use performance is improved; and (2) lubricating oil is used for circular lubrication, and a lubricating agent can be cooled, so that the heat dissipation can be further accelerated, meanwhile, the resource is saved, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of machinery, and in particular relates to a steam turbine bearing. Background technique [0002] The steam turbine is one of the important power equipment in industrial production. The bearing of the steam turbine is an important component of the steam turbine unit. The bearing of the steam turbine is mainly used to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. However, due to the large load and long running time of the steam turbine, the common bearing structure commonly used at present cannot meet the working needs of the steam turbine bearing, and the contact surface between the bearing and the shaft often cannot maintain enough lubricating oil for lubrication, resulting in serious wear of the bearing surface. It will cause damage to its own structure and equipment. In addition, after high-load operation, a large amount of hea...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned solution has improved some problems of the prior art to a certain extent, but the solution still has at least the following defects: unreasonable design, insufficient lubrication between the contact surface of the shaft and the sliding bearing, poor heat dissipation, contact High surface temperature, poor performance of sliding bearings, and serious technical problems of wear

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