Sectional type rotor structure manufacturing method

Abstract

A sectional type rotor structure manufacturing method comprises the following steps: preparing a plurality of first silicon steel plates and a plurality of second silicon steel plates; preparing a first end silicon steel plate and a second end silicon steel plate; respectively stacking and positioning the first and second silicon steel plates so as to form a first rotor body and a second rotor body; respectively placing the first end silicon steel plate and the second end silicon steel plate onto the first rotor body and the second rotor body; using a first extension structure and a first rivet point of the first end silicon steel plate to respectively fix a plurality of iron collars onto the first end silicon steel plate; finally stacking the second rotor body and the second end silicon steel plate on the iron collars, and enabling a second extension structure and a second rivet point of the second end silicon steel plate to fix the iron collars, thus forming the sectional type rotorstructure.

Description

technical field [0001] The invention relates to a manufacturing method of a segmented rotor structure, in particular to a manufacturing method of a segmented rotor structure which utilizes the extension structure and riveting points of the end silicon steel sheet to avoid deformation of the iron collar during die casting. Background technique [0002] Generally speaking, in the existing induction motors, a plurality of silicon steel sheets are usually stacked and riveted to form a rotor body, and then the die-casting process is used to pour aluminum paste into the pouring channel of the rotor body to form a cast aluminum rod. Then use the cast aluminum rod to achieve the effect of electromagnetic induction. [0003] In the production of common induction motors, cast aluminum rods can be easily formed by die-casting process, but when a relatively large induction motor is to be manufactured, the rotor body is usually divided into multi-section rotor groups, and two adjacent A...

AI Technical Summary

Problems solved by technology

[0004] Based on the above, since the existing inner spacers are usually made of aluminum alloy, when the aluminum paste is poured into the pouring channel of the rotor group, the inner spacers are often deformed due to strong pressure and high temperature, and The aluminum slurry is leaked and sprayed out, so that it is impossible to successfully manufacture a large rotor with cast aluminum rods

Especially when multiple rotor sets are stacked on top of each other, the weight of the inner spacer at the bottom will also increase relatively, which makes it easier to deform at high temperatures

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