Elastic locking device for turbofan engine rotor disassembling

Abstract

The invention discloses an elastic locking device for turbofan engine rotor disassembling, and belongs to the field of large turbofan engine compressor assembling. The device comprises a rotary handle, a supporting rod, a plurality of elastic locking components and a plurality of extrusion components, wherein the rotary handle is provided with a threaded hole, the first end of the supporting rod is provided with an external thread matched with the threaded hole, the supporting rod is sleeved with a spacing bush, and the first end of the spacing bush is close to the rotary handle; and the supporting rod is sleeved with the elastic locking components, the elastic locking components are sequentially arranged at intervals in the direction from the second end of the supporting rod to the firstend of the supporting rod to form elastic locking units, the tail ends of the elastic locking units abut against the tail end of the spacing bush, and the extrusion components are further arranged between the elastic locking units and the supporting rod in a sleeved mode and are sequentially and tightly connected. According to the device, the disassembling and assembling efficiency of an engine rotor can be effectively improved, the risk that parts, especially blades, are scratched due to collision is reduced, and the device is easy to operate, safe and effective.

Description

technical field [0001] The invention relates to the field of assembling a large turbofan engine compressor, in particular to an elastic locking device for disassembling a turbofan engine rotor. Background technique [0002] The rotor of an aircraft engine, taking a high-pressure compressor as an example, is mainly composed of a 7-stage impeller, a stator and a spacer. When the rotor is disassembled, due to the tightness of the fit, the impeller and the spacer are not easy to disassemble, which can easily cause damage to the blades and other parts, and the work efficiency is greatly reduced. When some impellers and spacers are tight, there is no better The method is decomposed, which seriously affects the production. [0003] The engine impeller and the spacer are positioned and installed by matching the spigot, and the impeller is locked by the tie rod. Because the joint of the impeller and the spacer is an interference fit, it is necessary to fix the impellers of other st...

AI Technical Summary

Problems solved by technology

The original decomposition process is to use a rubber rope to hold some blades up, and at the same time use a rubber hammer to hit the joint between the disc and the spacer, and use the impact force to separate the disc from the spacer, but the effect is very poor.

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