Radial Thrust Bearings for Hydrogenerator Sets

Abstract

The invention relates to a water-turbine generator set radial thrust bearing. A large thrust disc is fixedly arranged on the right side of a spindle of the water-turbine generator set radial thrust bearing, and a small thrust disc is fixedly arranged on the left side of the spindle of the water-turbine generator set radial thrust bearing. An oil inlet hood is arranged on the right side of a bearing support, the large thrust disc is arranged inside the oil inlet hood, and a thrust pad is arranged on the position, at the left side of the large thrust disc, of the bearing support. A radial bearing pad is arranged on the left side of the bearing support, and the front section of the radial bearing pad is L-shaped. A cooling lubricating oil tank is arranged on the bottom of the base, an oil inlet pipe is arranged on the bottom of the oil inlet hood, the oil inlet pipe is communicated with the cooling lubricating oil tank, an oil-scraping board is arranged on the upper portion of the oil inlet hood, and the oil-scraping board faces directly towards the surface of the large thrust disc. The oil inlet hood forms an oil-storage distributing cavity at the lower portion of the left side of the oil-scraping board, oil outlet holes are formed in the oil-storage distributing cavity, a distributing oil path connected with the oil outlet holes is arranged on the bearing support, and the distributing oil path transports the cooling lubricating oil to the position between the large thrust disc and the thrust pad. According to the water-turbine generator set radial thrust bearing, pad temperature is lowered, the accident rate is reduced, and normal operation of the set is ensured.

Description

technical field [0001] The invention relates to a water turbine generator set, in particular to a radial thrust bearing of a water turbine generator set. Background technique [0002] According to the installation method of the main shaft, the hydro-generator set is divided into vertical hydro-generator set and horizontal hydro-generator set. Among them, the vertical hydro-generator set means that the main shaft is installed vertically, and the horizontal hydro-generator set is It means that the spindle is installed horizontally. For horizontal hydro-generator units, since the radial bearings bear the weight of the main shaft of the entire unit, the temperature control of the radial bearings has always been a difficult problem. In addition, the thrust pads of the unit will gradually increase in temperature as the load of the unit increases. , if the tile temperature exceeds the allowable value, it will cause a tile burning accident and affect the normal operation of the uni...

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Problems solved by technology

For horizontal hydro-generator units, since the radial bearings bear the weight of the main shaft of the entire unit, the temperature control of the radial bearings has always been a difficult problem. In addition, the thrust pads of the unit will gradually increase in temperature as the load of the unit increases. , if the tile temperature exceeds the allowable value, it will cause a tile burning accident and affect the normal operation of the unit

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