Method for arranging non-weft band hoop on end portion of armature of brushless exciter

Abstract

The invention provides a method for arranging a non-weft band hoop on the end portion of an armature of a brushless exciter. The method for arranging the non-weft band hoop on the end portion of the armature of the brushless exciter is characterized by comprising the steps that a rotating shaft is hung on a hoop arranging machine tool firstly, and hoop arranging tools are arranged in place; then a non-weft band is heated through a heating device, a tensioning device is started, and a counting device records the number of arranged hoops; and at last, after curing of the non-weft band hoop, the outer diameter of the non-weft band hoop can be controlled by strengthening or releasing curing shrinkage to meet requirements. The method for arranging the non-weft band hoop on the end portion of the armature of the brushless exciter overcomes the defects existing in the prior art, and can effectively improve the quality of the arrangement of the non-weft band hoop on the end portion of the armature of the brushless exciter. Moreover, after the curing, the non-weft band hoop is attractive and tidy.

Description

technical field [0001] The invention relates to a method for punching a weft-free band hoop at the end of an armature of a large-scale brushless exciter, and belongs to the technical field of steam turbine generators. Background technique [0002] At the end of the armature of the brushless exciter, the coil at the end of the armature is fixed and tightened by beating a weft-free band. The weft-free belt clamping is a special process in the manufacture of the brushless exciter, and it is also the core of the rotor assembly of the brushless exciter. The quality of the clamping result directly affects the quality of the exciter product. [0003] The latitude-free belt hoop is made of polyester resin glass ribbon (abbreviated as latitude-free tape) and then baked and solidified in the drying room. The hooping process of non-weft tape is relatively complicated, and the tension and temperature during the hooping process must be strictly controlled. If the tension is too large, t...

AI Technical Summary

Problems solved by technology

The hooping process of non-weft tape is relatively complicated, and the tension and temperature during the hooping process must be strictly controlled. If the tension is too large, the temperature is too high, and the hooping part is heated unevenly, severe cracking may occur after the hooping is completed. phenomenon, and there is no simple and direct remedial measure, only to re-hoop, and if the outer diameter of the weft-free hoop after curing is not within the required range, it also needs to be dismantled and re-wound, resulting in a large waste of cost. The production cycle will also have a certain impact

[0004] In the previous brushless exciter for latitude-free belt hoops, the use of simple blower, oven and tension device cannot effectively control the surface temperature, tension and quality of latitude-free belt hoops after curing, resulting in a machine without weft The hooping of the brush exciter may require multiple hooping

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