Adaptive connecting device used for main pump motor top shaft

Abstract

The invention discloses an adaptive connecting device used for a main pump motor top shaft and relates to the main pump overhauling technology field. The device comprises a top shaft connecting deviceand a lower cambered surface pad plate. The top shaft connecting device comprises a steel ball, a steel ball gland, an upper cambered surface pad plate, a connecting pedestal and a customized bolt. The lower cambered surface pad plate is installed on the top end of a jack telescopic rod. The jack telescopic rod carries out telescopic motion and can drive the lower cambered surface pad plate to carry out up-and-down motion. The steel ball is clamped between the lower cambered surface pad plate and the upper cambered surface pad plate and the steel ball can roll. The steel ball is installed onthe upper cambered surface pad plate through the steel ball gland and does not fall off. The upper cambered surface pad plate is fixed to the connecting pedestal. The connecting pedestal and the bottom end of a main pump motor shaft form fixed connection through the customized bolt. In the invention, through the spherical surface contact of the steel ball and the lower cambered surface pad plate,an adaptive adjusting function is realized; and force-bearing inclination caused by the slight inclination of bottom support can be overcome, and during top shaft operation, the force-bearing direction of the motor shaft is ensured to be consistent with the direction of an axis.

Description

Technical field [0001] The invention relates to the technical field of main pump maintenance, in particular to an adaptive connection device for a main pump motor jack shaft. Background technique [0002] In the preventive disassembly inspection of the main pump motor and the treatment of on-site main pump motor shaft insulation defects, the lower bearing of the main pump motor needs to be disassembled and checked. Under the existing conditions, it can only be achieved by relying on more manpower and material resources in the AC plant after the overall replacement of the motor, and the on-site implementation does not have the working conditions, which causes considerable limitations on dismantling work and equipment defect handling; in addition, traditional The method of disassembly is that the jack directly jacks up the motor shaft of the main pump, which cannot adapt to ensure that the force is consistent with the axis of the main pump motor, which is easy to damage the main pu...

AI Technical Summary

Problems solved by technology

Under the existing conditions, it can only be realized by relying on more manpower and material resources in the AC plant after the overall replacement of the motor, but the on-site implementation does not meet the working conditions, which causes considerable limitations to the dismantling work and equipment defect handling; in addition, the traditional The disassembly method is to jack up the main pump motor shaft directly, which cannot be self-adaptive to ensure that the force is consistent with the axis of the main pump motor, and it is easy to damage the main pump motor

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