A sudden unbalance application device for simulating blade fly-off

Abstract

The invention relates to a sudden unbalance applying device for simulating the fly-off of the blade. The fly-off blade and the counterweight blade are installed on an integral fixing system through a blade clamping system, and ensure that the counterweight blade and the fly-off blade can follow the integral fixing system. Rotation; the control drive system is installed on the integral fixing system, and can control the blade clamping system to fly off the tongue and groove state of the blade, so as to control the fly off of the blade. The invention uses the fir-tree-shaped tongue and groove to fix the fir-tree-shaped leaf root, simulates the fixing method of the aircraft engine blade, and has strong stability; the pre-compression spring is used as the driving device, and after the fork-shaped slider moves for a certain distance, The pre-compression drive spring quickly releases the elastic force in the direction of the guide rail, so that the blade tongue and groove can be quickly opened, and the rapid control of the blade flying off is realized; during the opening of the blade tongue and groove, there is neither strong collision nor plastic deformation between parts, so that the protrusion can be carried out. Repeat the experiment without damage with the unbalanced device.

Description

technical field [0001] The invention belongs to the field of aero-engines, and relates to a turbofan engine fan blade and an aero-engine rotor blade sudden unbalance experiment device, in particular to a sudden unbalance applying device for simulating blade flying off. Background technique [0002] In recent years, with the continuous advancement of modern technology, the aviation industry has developed rapidly. For aviation aircraft, safety is an important indicator to measure its value, and as an important structure of modern aviation aircraft, aero-engines play the role of power driving source in the process of aviation flight, and it is inevitable to pay attention to its safety issues . [0003] During the use of a high-bypass ratio engine in civil aviation, if the engine is hit by foreign objects (bird strikes, rocks, ice, etc.) against the blades, the engine fan blades or engine rotor blades will break, and the engine fan blades will break and fly off ( Fan Blade Off...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of poor controllability, poor repeatability, and low precision in the prior art. The present invention proposes a loading device for sudden unbalanced aero-engine experiments.

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