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1. (WO2015120745) AIRCRAFT ENGINE ROTOR AIR FLOTATION ASSEMBLY METHOD AND DEVICE BASED ON GANTRY STRUCTURE

Pub. No.:    WO/2015/120745    International Application No.:    PCT/CN2014/095057
Publication Date: Fri Aug 21 01:59:59 CEST 2015 International Filing Date: Sat Dec 27 00:59:59 CET 2014
IPC: G01B 7/312
G01B 7/305
Applicants: HARBIN INSTITUTE OF TECHNOLOGY
哈尔滨工业大学
Inventors: TAN, Jiubin
谭久彬
SUN, Chuanzhi
孙传智
WANG, Lei
王雷
ZHAO, Bo
赵勃
Title: AIRCRAFT ENGINE ROTOR AIR FLOTATION ASSEMBLY METHOD AND DEVICE BASED ON GANTRY STRUCTURE
Abstract:
An aircraft engine rotor air flotation assembly method and device based on a gantry structure, belonging to the field of mechanical assembly technology. The present invention effectively solves the problem that aircraft engine rotors have low coaxiality after being assembled, and has the advantages that rotors have high coaxiality after being assembled, vibration is reduced, installation is easy, flexibility is high, and engine performance is improved. A measurement method and device are based on an air flotation rotary shaft system determining a rotary reference. According to a grating ruler (2f), angular positioning of a turntable is determined. Based on a measurement device having four measuring heads, a radial error of a rotor radial assembly surface and a tilt error of an axial mounting surface are extracted, and an influence weight value of the rotor on the coaxiality of assembled rotors is obtained. All the rotors required for assembly are measured respectively, and an influence weight value of each rotor on the coaxiality of the assembled rotors is obtained. Vector optimisation is performed on the weight value of each rotor and an assembly angle of each rotor is obtained.