Integral hot-press molding method of salient magnetic pole iron core and coil

Abstract

The invention relates to a production method of the parts of a hydroelectric generating set, and particularly relates to an integral hot-press molding method of a salient magnetic pole iron core and a coil. The invention aims to solve the technical problems that the assembling of the magnetic oil difficultly meets the requirement of zero clearance, the integrity is bad, and the poor insulating property can affect the heat dissipation effect and the like in the prior art. In the method provided by the invention, the magnetic pole iron core with good pole body insulation can be used as a hot-press mold core of a coil winding for hot press, and is coated with bushed paster, and then upper and lower insulating back plates are sleeved; a cold-press molded bare coil can be placed on a bracket of the magnetic pole iron core; according to the insulation requirement, an insulating layer is placed on the bare coil, and then the bare coil is put down, the bare coil and the interturn insulating layer are alternatively arranged until the interturn insulation of the whole coil is realized, the upper insulating back plate is placed on the upper end of the bare coil; the whole salient magnetic pole can be hung on a hot-press working stable and then is heated and pressurized in a press machine, finally an equal-height block can be used to determine the height and dimension, thus the finished product can be obtained.

Description

technical field [0001] The invention relates to a method for producing components of a hydroelectric generator set, in particular to a method for integral hot-press forming of a salient pole magnetic pole core and a coil. Background technique [0002] Domestic hydro-generator sets widely adopt vertical structures, and vertical hydro-generator sets are usually driven by Francis or axial flow turbines, and vertical structures can be divided into suspension type and umbrella type. The magnetic pole coil is the core part of the assembly of the rotating part of the generator. It was originally assembled from two separate parts, one electrical part (coil winding) and one mechanical part (magnetic pole core). The traditional assembly method is as follows: firstly, insert the lower insulating backing plate on the magnetic pole core, then insert the hot-pressed coil winding, and then put the upper insulating backing plate. In this process, for the thermoformed coil winding, the req...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a salient pole magnetic pole iron core and coil integral hot pressing forming method, which mainly solves the problem that the assembly of magnetic pole coils in the prior art is difficult to meet the requirement of no gap, the integrity is not good, and the poor insulation performance affects heat dissipation Technical issues such as effects

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