Static balance detection device and method for large blade adjustable water pump hub assembly of nuclear power plant

Abstract

The invention relates to a static balance detection device and a method for a large blade adjustable water pump hub assembly of a nuclear power plant, and belongs to the technical field of detection.The static balance detection device for the large blade adjustable water pump hub assembly of the nuclear power plant comprises a lifting mechanism, a support base and an operating station; the support base comprises an adjusting table, a support table, a stress bar assembly, a first transition flange, a second transition flange and a synchronous jacking mechanism; the support table and the synchronous jacking mechanism are arranged on the adjusting table; a lower end of the stress bar assembly is connected with the second transition flange, and the upper end of the stress bar assembly is connected with the first transition flange; the second transition flange is arranged on the support table; and the first transition flange supports an inverted water pump hub assembly, and an upper end ofthe first transition flange is connected with a shaft hole of a water pump hub. The static balance detection method for the large blade adjustable water pump hub assembly of the nuclear power plant is realized by the above device. The invention can verify whether the detected position adding weight and quality are accurate and marked timely, and the detection is stable with minor errors.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a static balance detection device and method for a large water pump hub assembly in a nuclear power plant. Background technique [0002] Due to the errors in the casting and processing of the hub blades, when the blades of the hub assembly of a large-scale blade-adjustable circulating water pump in a nuclear power plant are replaced, mass eccentricity will occur. The existence of mass eccentricity produces an eccentricity between the center of gravity of the hub and the axis of the hub. When the circulating water pump is running, the mass eccentricity will generate an additional centrifugal force on the rotating part of the pump. If the centrifugal force is large, the swing of the rotating part of the unit will increase, resulting in increased pump vibration and bearing wear, affecting the stable operation of the circulating water pump. . [0003] Therefore, a sta...

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Problems solved by technology

[0005] The present invention overcomes the problems in the prior art that the position and mass that need to be increased in weight cannot be detected and confirmed in time during the detection process of the static balance detection, and the problem that errors are easy to occur, and proposes a method that can verify the detection in time Whether the position and quality of the weight gain are accurate and marked, and detect stable and small error static balance detection device and method for large blade adjustable water pump hub assembly of nuclear power plant

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