Aircraft engine rotor air floating assembling method and device based on optical-electricity encoder angle measuring

A photoelectric encoder and aero-engine technology, applied in the direction of machines/engines, engine components, safety devices, etc., can solve problems such as low coaxiality, reduce noise pollution, save installation time and costs, and save fuel consumption Effect

Inactive Publication Date: 2014-05-14
HARBIN INST OF TECH
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Problems solved by technology

[0010] Aiming at the deficiencies in the above-mentioned existing technologies, a method and device for air-floating assembly of aero-engine rotors based on photoelectric encoder angle measurement are proposed to so

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  • Aircraft engine rotor air floating assembling method and device based on optical-electricity encoder angle measuring
  • Aircraft engine rotor air floating assembling method and device based on optical-electricity encoder angle measuring

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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings:

[0021] An aeroengine rotor air float assembly method and device based on photoelectric encoder angle measurement. The method and device are as follows: a four-jaw pneumatic chuck 4 is arranged on a center position of a centering and tilting table 3. The door-shaped left column 5a and the door-shaped right column 5b are symmetrically distributed on both sides of the air bearing shaft system 2 and fixed on the base 1. The two ends of the door-shaped beam 5c are connected with the upper end of the door-shaped left column 5a and the door-shaped right column 5b. The upper end is firmly connected. On the door-shaped left column 5a, the left upper column connecting piece 7c and the left lower column connecting piece 7a are movably and adjusted sequentially from top to bottom. The left upper horizontal measuring rod 6c is horizontally nested on the left upper column con...

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Abstract

The invention relates to an aircraft engine rotor air floating assembling method and device based on optical-electricity encoder angle measuring, and belongs to the machine assembling technology. According to the aircraft engine rotor assembling method and device, a rotation standard is determined based on an air floating rotation shaft system; angle location of a rotary table is determined according to an optical-electricity encoder; based on a measuring-head measuring device, radial errors of a rotor radial assembly face and slant errors of an axial assembly face are extracted, and the influence weights of rotors on the rotor coaxiality after the rotors are assembled are obtained; all the rotors required to be assembled are respectively measured, and the influence weights of the rotors on the rotor coaxiality after the rotors are assembled are obtained; vector optimizing is carried out on the weights of the rotors, and the assembling angles of the rotors are obtained. According to the aircraft engine rotor air floating assembling method and device, the problem that the coaxiality is low after the aircraft engine rotors are assembled is solved, and after the rotors are assembled, the aircraft engine rotor air floating assembling method and device have the advantages of being high in coaxiality, reducing vibration, being easy to install and high in flexibility, and improving the engine performance.

Description

technical field [0001] The invention belongs to mechanical assembly technology, and mainly relates to an air-floating assembly method and device for an aeroengine rotor based on angle measurement by a photoelectric encoder. Background technique [0002] Aeroengine assembly is the last link in the manufacturing process of aeroengine, and it is also one of the most important manufacturing links. Under the conditions of the existing aero-engine design scheme and processing technology level, the quality of assembly and work efficiency have an important impact on the quality, performance and production efficiency of the engine. Therefore, in the assembly process, the coaxiality of the installed rotor should be improved as much as possible, so as to reduce the vibration of the aero-engine and improve the performance of the aero-engine. However, in actual production, the assembly of aero-engines is completely manual assembly. The level of assembly accuracy and stability depends en...

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Application Information

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IPC IPC(8): F01D21/00F01D25/28
Inventor 谭久彬王雷金国良杨文国
Owner HARBIN INST OF TECH
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