一种航空发动机中转子叶片装配结构及其缘板修磨方法

By designing the inclined and planar structures of the rotor blade edge plates and performing edge grinding, the problems of assembly difficulties and stress concentration were solved, thus achieving convenient assembly and stability of the rotor blades.

CN116464516BActive Publication Date: 2026-07-17AECC SHENYANG ENGINE RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AECC SHENYANG ENGINE RES INST
Filing Date
2023-06-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The design of the rotor blade rim in existing aero-engines leads to assembly difficulties and stress concentration. The rhomboid rim is prone to jamming during assembly, difficult to disassemble, and has stress concentration at sharp corners.

Method used

The rotor blade rim plates are designed with inclined surfaces on both sides that are inclined along the blade mounting angle and planes parallel to the rotor disk axis. The rim plate edges are ground to ensure assembly without axial force, and the relative positions of the edge turning points are adjusted during assembly to avoid stress concentration.

Benefits of technology

This enables convenient assembly and disassembly of rotor blades on the rotor disk, avoids stress concentration, and improves the stability and reliability of the assembly structure.

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Abstract

本申请属于航空发动机中转子叶片装配设计技术领域,具体涉及一种航空发动机中转子叶片装配结构及其缘板修磨方法,其中航空发动机中转子叶片装配结构,包括:转子轮盘,外缘具有环形榫槽,侧壁具有安装缺口;安装缺口与环形榫槽连通;多个转子叶片,包括:叶身;缘板,上侧壁面连接叶身根部,与叶身根部的连接部位倒圆;缘板两侧边缘的前端部位为沿叶身安装角方向向后倾斜的斜面,后端部位为平行于转子轮盘轴线的平面;榫头,连接在缘板下侧壁面;各个榫头依次通过安装缺口,卡入到环形榫槽中,各个缘板两侧边缘之间通过后端部位的平面在转子轮盘周向上相互抵紧。
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