An exciter and its rotor structure

Abstract

The invention discloses a rotor structure of an exciter. The rotor structure comprises a rotor core and a rectifying disc, wherein the rectifying disc comprises a first mounting disc and a second mounting disc which are parallel; the rotor core is arranged between the first mounting disc and the second mounting disc, and the two end surfaces of the rotor core simultaneously and respectively cling to the surfaces of the first mounting disc and the second mounting disc; the first mounting disc, the second mounting disc and the rotor core are fixed through a fastening device. The rotor structure mainly comprises the rotor core and the rectifying disc, and the rectifying disc adopts a split type structure and comprises the first mounting disc and the second mounting disc, so that the rotor core can be arranged between the first mounting disc and the second mounting disc, and the rotor core, the the first mounting disc and the second mounting disc are tightly pressed, and are fixed into a whole under the action of the fastening device. Thus, the rotor structure can be assembled before being sleeved on a shaft and is mounted on a rotating shaft at the same time, and the axial space of a rotor is also saved.

Description

technical field [0001] The invention relates to the technical field of electromechanical engineering, in particular to a rotor structure of an exciter. The present invention also relates to an exciter comprising the above rotor structure. Background technique [0002] With the development of China's machinery industry and power electronics technology, as a combination of the two, electromechanical engineering technology has been widely used. As the connection hub of the two technical fields of machinery and electricity, electric motors, generators, exciters and other equipment are representative. [0003] Taking the brushless excitation synchronous generator as an example, the exciter and the rectifier disc are its important components. An exciter is also a special type of generator designed for the generator to create a magnetic field. The brushless excitation system is also called three-machine excitation, that is, the auxiliary exciter, the main exciter, and the genera...

AI Technical Summary

Problems solved by technology

[0004] However, the current line connection between the exciter and the rectifier disc can only be carried out after the respective sleeve shafts are installed, the process is relatively complicated, and a large amount of axial space outside the rotor shaft is occupied

In addition, when the exciter in the prior art fails and needs to be repaired, the entire generator rotor needs to be disassembled before repairing, which is time-consuming and laborious. In some occasions where the generator is difficult to disassemble, the repair cost is high

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