Shrinkage fitting tool device for stator core of shielded motor

Abstract

A shrinkage fitting tool device for a stator core of a shielded motor is composed of a pressing device, a force applying device, a lifting device and a tensioning device. The pressing device is a slender cylinder which sleeves the force applying device and is pressed on the tensioning device. The force applying device is composed of a double-end stud, a pressing plate and a nut, which are connected into a whole through threaded fit. The tensioning device includes an outer expansion ring and a cone cylinder, and the inner circle of the expansion ring and the outer circle of the cone cylinder are in conical fit. The cone cylinder tightens the expansion ring through an upward pulling force applied by the force applying device, so as to realize tensioning. The tool device of the invention reduces the workload and working time, improves the working efficiency, ensures the accuracy and convenience of the shrinkage fitting between a stator core and a frame, and is simple and convenient to operate.

Description

Technical field: [0001] The invention relates to a heat-fitting tooling device for a large shielded motor stator core. Background technique: [0002] With the development of nuclear power technology, the requirements for the machining process and precision of each component of the motor are getting higher and higher. The quality of each component of the motor can directly reflect the overall performance of the motor. The thermal charging process continues to improve, the precision required for thermal charging is increasing, the design and processing of the stator core continue to be refined and the structure is simplified, and there are insufficient lifting points on the core, so new tooling devices are needed to realize the lifting and thermal charging work. As the design of the iron core is becoming more and more refined, the design of the iron core can only provide lifting points, which makes the lifting work difficult. Traditional hoisting increases the process holes, w...

AI Technical Summary

Problems solved by technology

[0002] With the development of nuclear power technology, the requirements for the machining process and precision of each component of the motor are getting higher and higher. The quality of each component of the motor can directly reflect the overall performance of the motor. The thermal charging process continues to improve, the precision required for thermal charging is increasing, the design and processing of the stator core continue to be refined and the structure is simplified, and there are insufficient lifting points on the core, so new tooling devices are needed to realize the lifting and thermal charging work. As the design of the iron core is becoming more and more refined, the design on the iron core can provide lifting points, which makes the lifting work a difficult problem. Traditional hoisting increases the process holes, which will damage the accuracy and strength of the iron core to varying degrees.

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