Large-scale motor rotor shaft turning-over hoisting tool

Abstract

The invention discloses a large-scale motor rotor shaft turning-over and hoisting tool which comprises a clamping ring mounted on the neck portion of a rotor shaft and a turning-over boot mounted on the grounding side of the bottom end of the rotor shaft, wherein the neck portion of the rotor shaft is provided with a first flange, the bottom end of the rotor shaft is provided with a second flange,lifting lugs are symmetrically arranged on the outer circumferential surface of the clamping ring, and the top surface of the clamping ring is connected to the first flange; the turning-over boot comprises a plane part connected to the bottom surface of the bottom surface of the second flange, a bent part wrapping the outer arc face of the second flange is arranged at the bottom end of the planepart, a right-angle transition area attached to the corner of the second flange is arranged at the inner bent position between the bent part and the plane part, and a fillet transition area protrudingoutwards is arranged at the outer bent position between the bent part and the plane part. The large-scale motor rotor shaft turning-over and hoisting tool has the characteristics of being easy to turn over, high in hoisting efficiency and not prone to damage the rotor shaft.

Description

technical field [0001] The invention relates to a turning and lifting tool for a rotor shaft, in particular to a turning and lifting tool for a rotor shaft of a large motor. Background technique [0002] The rotor is one of the important parts of the large-scale generator motor of the pumped storage power station, and the rotor shaft is an important part of the rotor, and its function is to fix the yoke and generate the moment of inertia. During the manufacturing process of the motor, each component needs to be welded and assembled. When dealing with the rotor shaft, it is necessary to turn the rotor shaft in a horizontal state to a vertical state. The existing technology flips the rotor shaft in a horizontal state and a vertical state. When using a crane to lift one end of the rotor shaft, it is difficult to turn over, and the rotor shaft is easily damaged when directly hoisted, and the hoisting efficiency is low, and the economic benefit is poor; in addition, the flange at...

AI Technical Summary

Problems solved by technology

During the manufacturing process of the motor, each component needs to be welded and assembled. When dealing with the rotor shaft, it is necessary to turn the rotor shaft in a horizontal state to a vertical state. The existing technology flips the rotor shaft in a horizontal state and a vertical state. When using a crane to lift one end of the rotor shaft, it is difficult to turn over, and it is easy to damage the rotor shaft when directly hoisting, and the hoisting efficiency is low, and the economic benefit is poor; in addition, the flange at the other end of the rotor shaft falls directly, without any protection Protective measures, and the end flange of the rotor shaft is a very precise part, it is easy to damage the flange surface of the rotor shaft end during the flipping process, affecting the assembly of the motor and causing the motor to fail to work normally

Therefore, the existing lifting tool for turning over the rotor shaft has the problems of difficulty in turning over, low hoisting efficiency, and easy damage to the rotor shaft

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