Water guide bearing

Abstract

The invention belongs to the technical field of hydraulic turbine parts and particularly relates to a turbine guide bearing. The turbine guide bearing comprises a bearing block and a spindle, wherein the outside of the spindle is sleeved with a water guide block; the water guide block is rotatably connected with the spindle; a water guide block adjusting device is arranged between the water guide block and the bearing block; an oil retaining mechanism is arranged between the water guide block and the spindle. The turbine guide bearing is characterized in that the oil retaining mechanism comprises a cylindrical body which is arranged at the spindle provided with a guide bearing collar and is positioned in an annular space formed between the spindle and the guide bearing collar; the guide bearing collar is externally sleeved with the water guide block; the water guide block is rotatably connected with the spindle; a pressure forming structure which can form positive pressure when the spindle rotates to prevent lubricating oil from being lost is arranged on the body. The turbine guide bearing has the advantages that a clearance between a shaft bush and a shaft is favorably adjusted, and a good oil retaining effect is realized.

Description

technical field [0001] The invention belongs to the technical field of hydraulic turbine components, in particular to a water guide bearing. Background technique [0002] The water guide tile can withstand the radial force of the main shaft of the water turbine, and is a bearing that can keep the main shaft in the center position. Widely used in hydroelectric generator sets, large water pumps, cement mills, ball mill bearings, ship machinery and other fields. When installing the water guide tile, it is necessary to determine the center position of the main shaft of the water turbine and the rotor of the generator, and then adjust the clearance of the bearing according to the actual position of the shaft. However, in the prior art, there is no device that can directly assist in adjusting the gap between the bearing pad and the shaft to achieve the optimal design value during installation. In addition, when the bearing is worn out, it is necessary to remove the bearing and ad...

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Problems solved by technology

[0004] Although the above solution solves the deficiencies of the prior art to a certain extent, the clearance adjustment structure of the combined bearing is relatively complicated, the use is not convenient enough, the oil retaining effect is not good enough, and the oil is still easy to leak out. In addition, the lubricating oil is not distributed enough on the bearing surface Uniform, not conducive to lubrication, the overall design is not reasonable enough

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