Fixtures and methods for loading and unloading the inner ring of the bearing in the pivot assembly of an aero-engine.

Abstract

This invention relates to a fixture and method for assembling and disassembling the inner ring of a bearing in aero-engine fan shaft assembly, belonging to the field of aero-engine fan shaft assembly technology. A support plate is located at the bottom of the fixture, and a positioning claw is positioned above the support plate, with the upper part of the positioning claw fixedly connected to a support sleeve. The support sleeve is coaxially positioned above the support plate. The middle part of the upper end of the support sleeve is coaxially welded and fixed to a threaded sleeve. The middle part of the threaded sleeve is coaxially fixed to the fixing part of a vertically arranged hydraulic device. The movable part at the lower end of the hydraulic device is coaxially fixed to the upper end of a vertically arranged pressure pin, and the lower end of the pressure pin is coaxially fixed to the middle part of the pressure sleeve. This invention avoids deformation and damage to the thin-walled bearing inner ring caused by uneven stress, ensures the integrity and reusability of the bearing inner ring after assembly and disassembly, effectively reduces costs, improves product utilization, solves the problem of unstable assembly accuracy during manual operation, and achieves non-destructive, efficient, and high-precision assembly and disassembly of the inner ring of aero-engine bearings.

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