Nuclear power plant shaft seal main pump motor rotor iron core pressurization and thermal sleeve process and its process equipment

Abstract

The present invention relates to a nuclear power plant shaft seal main pump motor rotor iron core loading and shrinking process method and its process equipment, which installs and adjusts the core tire (1) and detects the diameter and verticality of the core tire (1): using an outer diameter micrometer Measure the upper and middle of the core tire (1); the main body of the process equipment is composed of two parts, the inner tube and the outer tire. Pre-pressing plate (17), lower pressing plate (19). The invention guarantees the quality of the rotor iron core (3) for pressing and heat sleeve, as well as the magnetic center of the motor stator and rotor. Deviation, deviation of total length of iron core, deviation of geometric center, deviation of groove size, degree of closeness between rotor platen and rotor punching plate after thermal sleeve.

Description

Technical field: [0001] The invention relates to a process method of pressing and shrinking the iron core of the rotor core of the shaft seal main pump motor of a nuclear power plant and its process equipment. Background technique: [0002] The rotor core of the main pump motor of a nuclear power plant is an important component of the rotor. Its performance is to realize the conversion of electromagnetic energy, and to generate rotating mechanical energy through electromagnetic induction. The manufacturing quality of the rotor core is the basis for the safe operation of the motor. The rotor The quality assessment indicators of the iron core include the tightness of the rotor punching, the waviness of the iron core, the length deviation of each segment of the iron core, the total length deviation of the iron core, the geometric center deviation, the groove size deviation, and the degree of tightness between the rotor pressing plate and the rotor punching after heat sleeve etc...

AI Technical Summary

Problems solved by technology

[0002] The rotor core of the main pump motor of a nuclear power plant is an important component of the rotor. Its performance is to realize the conversion of electromagnetic energy, and to generate rotating mechanical energy through electromagnetic induction. The manufacturing quality of the rotor core is the basis for the safe operation of the motor. The rotor The quality assessment indicators of the iron core include the tightness of the rotor punching, the waviness of the iron core, the length deviation of each segment of the iron core, the total length deviation of the iron core, the geometric center deviation, the groove size deviation, and the degree of tightness between the rotor pressing plate and the rotor punching after heat sleeve etc. In the past, these quality indicators were often controlled very unsatisfactorily, and there were often quality problems such as iron core looseness, rotor pressure plate separation, iron core tilt, and large center deviation. Therefore, in order to overcome these stubborn problems, it is necessary to formulate reliable and correct Process method, design corresponding process equipment, strictly control the operation process of rotor core pressure and heat sleeve, and improve the manufacturing quality level

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