Method for processing insulated iron weight of motor stator coil

Abstract

The invention relates to a method for processing an insulated iron weight of a motor stator coil, and belongs to the technical field of hydraulic generators. The method comprises the following steps of: processing of a straight iron weight, a standard clamp, an end part clamping plate and a support handle, wherein the processing of the straight iron weight comprises that: the straight iron weightis processed by blanking according to the length of the iron core of the stator coil and the size of discharging groove openings on both sides, and the upper iron weight of the straight iron weight can be pressed at the R corner at both ends of the straight line of the coil; angle pins with the size of 0.5 to 2mm are processed at both ends of the straight iron weight; the processing of the ring comprises that: according to the elevating quantity of the straight lines of the coils at both ends of the small face of the iron weight, a ring is designed on the small face of the iron weight at bothends according to the width of the anti-corona structure of the end part of the coil, and the ring is cut into the size of 15 to 20mm and welded on the small face of the iron weight, so that the smooth transition from the coil straight line to the end part insulated corner-the R corner is realized. The method has the advantages of simple process, convenient profiling, improvement of end part compactness and sectional dimension of the coil, high appearance quality and insulated property, high energy efficiency, long service life of the motor and the like.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric generators, and in particular relates to a method for processing a motor stator coil insulating pressed iron. Background technique [0002] At present, the design method and insulation structure adopted by the frame coil unit of the high-speed generating set have very strict technical requirements for the manufacturing process. In order to adapt to the heat dissipation of the spacing dimension of the end insulation and the violation requirements of the nose insulation when it is off the line, the size control of the coil and the end insulation is very strict, so as to reduce the mechanical damage of the insulation when the stator coil is off the line. However, in the traditional molding process, the insulated weight iron only presses the straight part of the coil. After the coil molding is completed, the insulation at the corner R of the pressed coil end is likely to be bloated, the integri...

AI Technical Summary

Problems solved by technology

In the traditional molding process, the insulated weight iron only presses the straight part of the coil.

After the coil molding is completed, the insulation at the corner R of the pressed coil end is likely to be bloated, the integrity and electrical performance of the end insulation are reduced, and the size is out of tolerance, which affects the spacing dimension of the end insulation when the stator coil is off-line, and the heat dissipation effect is poor.

Directly affect the electrical performance of the coil and the assembly quality of the whole machine, and the repair volume of the stator coil is large, resulting in waste of raw materials and other technical problems

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