Stress balance adjusting device for thrust bearing of hydro-generator

Abstract

The invention relates to a stress balance adjusting device for a thrust bearing of a hydro-generator, aiming at solving the problems that when the thrust bearing of a hydro-generator unit is subjected to stress adjustment, both the time and energy are wasted, the nonuniform strength causes a thrust stress adjustment difficulty, and the nonuniform stress on thrust pads results in that a part of thrust pads are higher in temperature to influence the safe and stable operation of the unit. The stress balance adjusting device comprises a cylinder body, a moving frame for supporting the cylinder body, and a power air cylinder located on the tail end of the cylinder body, and is characterized in that the cylinder body is internally provided with an impact hammer; an energy storage spring is arranged between the impact hammer and the power air cylinder; the front end of the impact hammer is provided with a part cooperating with a percussion manipulation device installed on the cylinder body; one end, towards the direction of the energy storage spring, of the impact hammer is provided with an impact hammer resetting pull rod. The stress balance adjusting device is high in efficiency, safe, short in operation duration, convenient to move and uniform in force application, and guarantees the precise and balanced stress adjustment on the thrust bearing; therefore the stress adjustment on the unit is good, the maintenance technology is promoted, the temperature of the thrust pads is lowered, and the service life of the thrust pads is prolonged.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to a force balance adjustment device for thrust bearings of hydroelectric generators. Background technique [0002] The thrust bearing is an important part of the hydro-generator set, which carries the weight and water thrust of the entire rotating part of the unit. The safety and stability of the thrust bearing is a necessary condition to ensure the safe and stable operation of the hydro-generator set. At present, most hydroelectric units use rigid screw pillar bearings, which are mainly composed of mirror plates, bearing bushes, trays, anti-heavy screws, oil coolers and oil tanks, etc. The bearing bushes are placed on the trays, and the trays are supported on spherical anti-weight screw heads. , It can automatically adjust the inclination of the bearing pad at different speeds and loads to establish an appropriate wedge-shaped oil film. The bearing is generally compo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the time-consuming and labor-intensive adjustment of the thrust bearing of the hydroelectric generator set, the uneven force, resulting in difficulty in adjusting the thrust force, uneven force on the thrust pads, and high temperature of some pads, which affects the safe and stable operation of the unit. and other problems, provide a hydraulic generator thrust bearing force balance adjustment device with reasonable structural design, which can accurately ensure that the force of the unit is well adjusted

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