High-voltage motor stator coil end part splicing and shaping method

Abstract

The invention relates to a high-voltage motor stator coil end part splicing and shaping method, and belongs to the technical field of hydraulic generators. The high-voltage motor stator coil end part splicing and shaping method is characterized in that: the stator coil end splicing and shaping is carried out by a shaping and gelling mold; the shaping and gelling mold comprises an end mold, a linear weight, a check block, a linear frame, a flange lug, a flange, an end plate, a side plate, an end part weight, and a support plate; and the process of manufacturing the shaping and gelling mold comprises the following steps of: 1) splicing the linear frame according to an angular template; 2) making a cylindrical fixture according to the size of an R position at the corner of the end part of the stator coil, and heating and bending the side plate on the cylindrical fixture to meet the requirement of the size of the R angle on the end part; 3) welding the end plate and the side plate together to form the end part weight; and 4) in the process of assembling the end mold of the shaping and gelling mold, arranging the end part support plate. The method has the advantages that: the process is reliable, the parts are convenient to assemble, the assembly is time-saving and labor-saving, the insulation is not damaged, the motor is small, the assembly quality is high, the energy is saved, the consumption is reduced, the service life of the motor is prolonged, 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 splicing and shaping the end of a stator coil of a high-voltage motor. Background technique [0002] At present, high-voltage high-speed rotating motors are small in size, light in weight, long in iron core, small in slot spacing, high in space utilization, small in number of stator coils, large in end span, and complex in shape with radians at the end, requiring high quality , It brings great difficulty to the processing and production of end tires. When the operator assembles the end tire of the shaping die, because he does not consider the amount of rebound of the copper wire in the actual operation of splicing the hypotenuse arc, it is easy to appear the coil after the inter-strand pressing process, the geometry of the end arc, and the angle of rise The size and shape are different, and the error is large, resulting in inconsistent s...

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Problems solved by technology

[0002] At present, high-voltage high-speed rotating motors are small in size, light in weight, long in iron core, small in slot spacing, high in space utilization, small in number of stator coils, large in end span, and complex in shape with radians at the end, requiring high quality , which brings great difficulty to the processing and production of end tires

When the operator assembles the end tire of the shaping die, because he does not consider the amount of rebound of the copper wire in the actual operation of splicing the hypotenuse arc, it is easy to appear the coil after the inter-strand pressing process, the geometry of the end arc, and the angle of rise The size and shape are different, and the error is large, resulting in inconsistent spacing between the ends of the coil and different arc depths

After the coil is installed, it is easy to damage the insulation at the end. After the insulation is damaged, the coil needs to be disassembled, which directly affects the electrical performance of the coil and the assembly quality of the whole machine. The stator coil has a large amount of repair, resulting in waste of raw materials, and even the stator coil is scrapped.

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