Thermal sleeve positioning device for motor stator core and enclosure

Abstract

The invention discloses a thermal sleeve positioning device for a motor stator core and an enclosure. The enclosure comprises a shell, a first opening, an end cover and a shaft hole, wherein the firstopening is formed in one end of the shell, the end cover is arranged at the other end of the shell, the shaft hole is formed in the end cover, and the stator core can be embedded into the enclosure from the first opening. The positioning device comprises a base, a first installation table, a first positioning assembly and a second positioning assembly, wherein the first installation table is arranged on the base, the first positioning assembly sleeves the first installation table and is coaxially arranged with the first installation table, the second positioning assembly is embedded into thefirst positioning assembly and is coaxially arranged with the first positioning assembly, the first positioning assembly can be embedded into the stator core in a matching way, one end of the second positioning assembly is connected to an axis of the first installation table, and the other end of the second positioning assembly can be arranged in the shaft hole in a matching and penetrating way. With the thermal sleeve positioning device for the motor stator core and the enclosure, the enclosure and the stator core can be effectively positioned, the coaxiality between the stator core and the enclosure is ensured, and the thermal sleeve assembly efficiency is improved.

Description

technical field [0001] The invention relates to a shrink-fit positioning device for a motor stator iron core and a casing. Background technique [0002] In the motor manufacturing industry, the heat-shrinking process is a common way to assemble the stator core and the casing. The so-called heat-shrinking process means that the casing is heated first, so that the casing deforms after being heated and the inner diameter becomes larger, forming a clearance fit with the stator. As the temperature of the casing drops, the clearance fit becomes an interference fit, so that the casing is firmly set on the outer wall of the stator core. [0003] However, in the prior art, the casing is usually directly shrunk onto the stator core, but in this way it is difficult to ensure the coaxiality of the stator core and the casing, and the axis between the stator core and the casing Both the axial and radial distances are difficult to meet the requirements, which will cause a series of proble...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the casing is usually directly shrunk onto the stator core, but in this way it is difficult to ensure the coaxiality of the stator core and the casing, and the axis between the stator core and the casing Both the axial and radial distances are difficult to meet the requirements, which will cause a series of problems such as improper assembly of the casing and inconsistent tightness of the casing on the stator core, and reprocessing and reheating of the casing will greatly increase cost

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