Wound motor rotor conductive ring protection mode and fixing device

Abstract

The invention discloses a wound motor rotor conductive ring protection mode and a fixing device. Rotor conductive rings are fixed in the cavity at the end of a rotor winding by adopting a compaction structure. The compaction structure mainly comprises an end bracket, compaction blocks and conductive rings, wherein the pre-packed insulated conductive rings are pushed into the end bracket one by one, and then the conductive rings are compacted on the bracket by using the compaction blocks to form a gapless whole so as to avoid the damage of the centrifugal force; the end bracket can be welded by adopting different nonmagnetic steel plates and also can be cast by cast steel; and the compaction blocks are processed by nonmagnetic steel plates, and each compaction block is provided with two through holes for assembling bolts. In addition, screw holes can be processed at different positions of the compaction surface of the end bracket as required. Each compaction block is fastened with the end bracket through two standard bolts, and the size and the grade of the bolts are determined according to the stress condition so as to ensure that the conductive rings can be safely fixed by the compaction blocks.

Description

technical field [0001] The invention relates to a component protection method and device for a wound-type motor rotor, in particular to a protection method and a fixing device for a motor rotor conductive ring. The wire-wound motor rotor conductive ring protection method and the fixing device can effectively protect The conductive rings of the rotor are more reliable in fixing and more convenient in replacement, economical and practical, especially suitable for various large and medium-sized winding motor rotors. Background technique [0002] For the wound motor rotor, it is divided into "△" and "Y" connection. The neutral wire of the rotor of the two types of connections and the lead wires of each parallel branch need to be connected at the end of the rotor, and this connection part is usually called a conductive ring. Generally, the conductive ring is made of copper, and its mechanical and physical properties are relatively weak. When the motor rotates at high speed, the ...

AI Technical Summary

Problems solved by technology

[0003]At present, the conductive rings of large and medium-sized wound motors are generally fixed by built-in binding or surface binding. There are different degrees of deficiencies, and it takes up a lot of space, and it is inconvenient to replace. Especially when the built-in binding type is used, replacing a conductive ring often destroys the binding at the end of the entire rotor, wasting a lot of manpower and material resources.

With the changes in the application environment of wound motors, the power and performance of wound motors are constantly improving, and the safe fixing of the rotor conductive ring is becoming more and more important. The traditional fixing methods are not enough to meet the requirements of higher performance. more obvious

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