A kind of aero-engine compressor rotor blind cavity nut automatic tightening device and method

A compressor rotor, aero-engine technology, applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve the problems of low tightening efficiency, invisible tightening process of narrow blind cavity nut, etc., achieve high tightening accuracy and reduce skill requirements and labor intensity, the effect of ensuring consistency

Active Publication Date: 2022-05-13
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Aiming at the problems in the existing tightening technology that the nut tightening process of the narrow blind cavity is invisible and the tightening efficiency is low due to the lack of an automatic nut supply mechanism, the present invention provides an automatic The tightening device, through the automation of the tightening process and nut supply and the visualization of the tightening status, has realized the improvement of tightening efficiency and tightening accuracy, and promoted the realization of the basic consistency of the engine bolt connection quality

Method used

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  • A kind of aero-engine compressor rotor blind cavity nut automatic tightening device and method
  • A kind of aero-engine compressor rotor blind cavity nut automatic tightening device and method
  • A kind of aero-engine compressor rotor blind cavity nut automatic tightening device and method

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Embodiment Construction

[0061] The present invention will be further described below in conjunction with the accompanying drawings and examples. It should be understood that the following examples are intended to facilitate the understanding of the present invention, and have no limiting effect on it. In this embodiment, the rotor disk to be connected is taken as an example of the third-stage rotor disk to be connected of the compressor, and the automatic nut tightening device provided in this embodiment is installed on the rear flange of the ninth-stage rotor disk.

[0062] Such as figure 1 and 2 As shown, the aeroengine compressor rotor blind cavity nut automatic tightening device provided in this embodiment includes an L-shaped tightening mechanism 100, a lifting mechanism 200, an expansion / contraction mechanism 300, a circumferential rotation mechanism 400, a support mechanism 500 and a nut supply mechanism 600.

[0063] refer to Figure 1-3 , the L-shaped tightening mechanism 100 is L-shaped ...

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Abstract

The invention belongs to the field of aero-engine manufacturing, and in particular relates to an automatic tightening device and method for nuts in the blind cavity of an aero-engine compressor rotor. The device includes an L-shaped tightening mechanism for tightening nuts; Mechanism; Expanding / contracting mechanism for deflecting the tightening arm of the L-shaped tightening mechanism; Circumferential rotation mechanism for rotating the L-shaped tightening mechanism, lifting mechanism and expanding / contracting mechanism; Used to support the L-shaped tightening mechanism, lifting mechanism, A support mechanism for the expansion / contraction mechanism and the circumferential rotation mechanism; and a nut supply mechanism for supplying nuts to the L-shaped tightening mechanism. The invention is mainly used for the assembly of aviation turbofan engines with small bypass ratio aviation turbofan engines with deep disc cavity, unreachable field of vision, small disc center diameter and disc spacing, and can realize the automation and tightening of the tightening process and nut supply. Status visualization to improve tightening efficiency and tightening accuracy.

Description

technical field [0001] The invention belongs to the field of aero-engine manufacturing, and in particular relates to an automatic tightening device and method for blind cavity nuts of an aero-engine compressor rotor. Smaller bypass than aero turbofan engine assembly. Background technique [0002] The disk and disk shaft of the high-pressure compressor rotor unit of the aero-engine with small bypass ratio are widely used in the way of dense inner flange bolt connection. As an important part of an aero-engine, the quality of the bolted connection directly affects the assembly performance of the engine. However, the axial structure of the rotor is complex and compact, and the assembly opening of some connecting parts is poor, and it is easy to form a semi-closed blind cavity structure with a narrow space and inaccessible visually, which makes the assembly and connection of the nut more difficult. [0003] At present, the assembly and connection of the nuts between the discs o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/00B23P19/06
CPCB23P19/001B23P19/06B23P19/00
Inventor 李小强韩玉杰张永生
Owner BEIHANG UNIV
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