Protection device used for assembling rotor blade with convex shoulders

Abstract

The invention discloses a protection device used for assembling a rotor blade with convex shoulders, and belongs to the technical field of assembling processes of rotor blades with convex shoulders of aero-engines. The protection device used for assembling the rotor blade with the convex shoulders comprises a protection part, a clamping opening is formed in one end of the protection part, and a tightening part is arranged at the other end of the protection part. The clamping opening is used for being fixed to the convex shoulder root on the rotor blade with the convex shoulders, and the tightening part is used for being detachably connected with the air inlet edge of the rotor blade with the convex shoulders. The protection part, the clamping opening and the tightening part are integrally connected. The protection part is of a protection plate structure, the tightening part is of an inclined plane structure, and the protection part and the tightening part form a closing clamp-shaped body. According to the protection device used for assembling the rotor blade with the convex shoulders, the protection device can be completely attached to the molded surface of the blade, direct contact between a blade basin convex shoulder and a blade back convex shoulder is avoided, and finally zero-damage assembling of the rotor blade with the convex shoulders is achieved.

Description

technical field [0001] The invention belongs to the technical field of assembly technology of rotor blades with shoulders of aeroengines, and relates to a protection device for assembling rotor blades with shoulders. Background technique [0002] Dry friction damping structure is widely used in aero-engines to reduce blade vibration. There are various forms of dry friction damping structure, among which the shoulder damping structure has both the functions of improving rigidity and increasing damping. At present, the shoulder structure is a typical structure on the rotor blades of aero-engines, and is widely used in the vibration control of fan / compressor rotor blades. [0003] According to the assembly, disassembly and maintenance of rotor blades with shoulders for many years, it is found that the traditional assembly process for rotor blades with shoulders is easy to damage the root of the blade basin shoulders, and manual assembly cannot guarantee the integrity and reliab...

AI Technical Summary

Problems solved by technology

[0004] Due to the large production batch and short assembly cycle, the traditional assembly method is time-consuming and laborious, has poor reliability and has no effective protection method. Therefore, it is necessary to find an effective, simple and practical improvement method to solve the problem of easy and difficult assembly of rotor blades with shoulders. The quality problem of bruising on the root of the protruding shoulder of the leaf pot occurs, and the disadvantages of poor reliability and low efficiency are solved at the same time

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