Elastic pillar support thrust bearing bush for hydraulic generator convenient for pumping bush to maintain

Abstract

The invention discloses a thrust bearing shoe with an elastic-pillar bracing structure which can extract a thin segment conveniently and comprises a thin segment, a thick segment, an internal cushion block, an external cushion block, a positioning dowel, and a retaining key, etc. The positioning dowel is mounted at the external side of the thin segment while a retaining slot is opened at the internal side of the thin segment; the excircle of the thin segment is provided with a retaining key slot and the retaining key is mounted on the excircle of the thin segment; a threaded hole used for extracting the segments is opened at the position close to the center of the external side of the thin segment; the external cushion block is provided with the retaining slot with the internal cushion block is provided with a positioning hole; the external side of the thick segment is provided with a retaining hole while the internal side is provided with a positioning dowel hole; when extracting the segment, the thin segment is extracted out together with the external side positioning dowel; the structure can ensure that when the power station needs to maintain the thrust bearing shoe, only the thin segment is required to be extracted out but the thick segment, thus the segment extraction is simplified. As the thin segment is light in weight, various tools such as hydraulic jack, air cushion jack, and needle roller trolley, etc. as well as heavy track frame can be saved, when extracting the segment, and workers can operate standing outside an oil sump, so that the safety is promoted greatly.

Description

Technical field: [0001] The invention relates to a thrust bearing tile supported by an elastic column for a hydroelectric generator which is convenient for tile extraction and maintenance. Background technique: [0002] Thrust bearing pad is one of the most important parts of hydro-generator set. It bears the weight of the rotor of the generator set and the axial water thrust. Its working performance is not only directly related to the safe operation of the unit, but also affects the output and efficiency of the unit. . As the capacity of the hydroelectric generating set increases, the load on the bearing is also increasing, and the heat generated by the friction on the surface of the thrust bearing pad during the operation of the unit is also increasing. The thermal deformation and mechanical deformation of the thrust bearing pad are more and more significant. At present, large-scale generators in the world use thrust bearing pads supported by elastic columns. The thin ti...

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Problems solved by technology

This requires a lot of tools, the operation is complicated, and there is a certain risk of operation.

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