An aeroengine casing oil-gas separator end face runout detection device and a detection method thereof

By designing a positioning clamping and rotation detection mechanism, the problems of low efficiency and unstable accuracy in detecting runout of the end face of the aircraft casing oil-gas separator were solved, achieving efficient and accurate detection and ensuring the assembly accuracy and operational reliability of the aircraft engine.

CN122192124APending Publication Date: 2026-06-12HARBIN DONGAN IND DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN DONGAN IND DEV
Filing Date
2026-04-07
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In existing technologies, the end face runout detection of aircraft casing oil-gas separators is inefficient and has unstable accuracy, which cannot meet the needs of mass production. Furthermore, manual handheld measurement has reference deviations and errors, making it difficult to adapt to irregular structures.

⚗Method used

The system employs a positioning clamping mechanism and a rotating detection mechanism, including an elastic expansion sleeve, a tensioning rod, and a dial indicator, to achieve rigid positioning and continuous full-circumference measurement of the oil-gas separator under test. Through the cooperation of the tapered fitting section and the elastic expansion sleeve, the system eliminates reference deviations, adapts to irregular structures, and ensures micron-level detection accuracy.

🎯Benefits of technology

It enables efficient and accurate detection of runout on the end face of the oil-gas separator in aircraft casings, improving the consistency and accuracy of the detection results and ensuring the assembly precision and operational reliability of aircraft engines.

✦ Generated by Eureka AI based on patent content.

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Abstract

An aeroengine casing oil-gas separator end face runout detection device and a detection method thereof belong to the technical field of aeroengine part detection. The positioning and clamping mechanism is used for fixing the casing shell of the oil-gas separator to be detected, the tensioning pull rod is arranged in the center shaft hole, the upper end is screwed with the locking nut, the outside is sleeved with the elastic expansion sleeve, and the lower end is a tapered matching section; the tapered matching section is in abutment with the lower end of the elastic expansion sleeve and the inner wall of the center shaft hole; the locking nut is rotatably connected with the elastic expansion sleeve through the bearing; the elastic expansion sleeve is connected with the rotary measuring arm, the rotary measuring arm is provided with a dial gauge, and the dial gauge is in abutment with the end face of the casing shell to be detected. The present application realizes the gapless coaxial fixing of the detection mechanism and the center shaft, eliminates the reference deviation, guarantees the micron-level detection precision, adapts to the special-shaped casing structure, rigidly positions and avoids the part movement. The whole circumference continuous measurement can be completed by one-time clamping, and the detection efficiency and result consistency are greatly improved.
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