地铁车门辅助锁噪声控制方法研究  

Research on Noise Control Strategies for Auxiliary Locking Mechanisms in Subway Doors

作　　者：万宇 金铭 严欢 Wan Yu;Jin Ming;Yan Huan(Wuhan Metro Operation Co.,Ltd.,Wuhan 430000)

机构地区：[1]武汉地铁运营有限公司,武汉430000

出　　处：《设备监理》2025年第2期43-46,50,共5页Plant Engineering Consultants

摘　　要：针对准高速地铁列车气动压力波动显著及噪声超标的问题,本文基于压力波保护装置与车门辅助锁的协同工作机制展开研究。通过结构分析与试验验证,揭示辅助锁噪声主要源自锁舌与锁扣、内摆臂与止动轴的双金属撞击效应。本文提出6种噪声控制策略,经多维度试验对比,最终确定采用铝型材锁体、加装缓冲头和节流阀的组合方案,使噪声衰减量达21 dB(A),为既有线路改造和新车制造提供经济可行的技术路径。To address the issues of significant aerodynamic pressure fluctuations and excessive noise levels in semi-high-speed subway trains,this study investigates the integrated working mechanism of pressure wave protection devices and door auxiliary locks.Through structural analysis and experimental validation,it is revealed that the auxiliary lock noise primarily originates from the bimetal impact mechanism between the lock tongue-lock buckle and the inner swing arm-stop shaft.Six noise control strategies are proposed,and a combination scheme incorporating an aluminum alloy profile lock body,buffer head installation,and throttle valve optimization is identified via multifaceted experimental comparisons.The results demonstrate a noise attenuation of 21 dB(A),providing an economically feasible technical pathway for retrofitting existing lines and manufacturing new trains.

关 键 词：地铁 辅助锁 噪声控制 结构优化 

分 类 号：TB497[一般工业技术]