一起电梯对重尼龙反绳轮脱落轿厢蹲底事故的技术分析

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摘要：通过一起电梯对重尼龙反绳轮脱落、轿厢蹲底的事故，从现场检验勘查、性能测试、功能验证，结合视频监控分析、相关人员走访座谈等还原电梯事故发生过程，分析事故发生的各环节、各因素，对电梯事故原因进行深入研究、验证，提出电梯尼龙反绳轮、限速器—安全钳安全使用的相关建议。

关键词：尼龙反绳轮；限速器—安全钳；失效；建议

Technical Analysis of a Car Squatting Accident Caused by the Detachment of a Nylon Anti Rope Wheel in an Elevator Counterweight

LAI Yueyang1， ZHANG Hongming1， DAI Qingyou2， LIANG Guangzhi2

（ 1 Xiamen Special Equipment Inspection and Testing Institute， Xiamen 361012， Fujian， China ）

（ 2 Guangdong Special Equipment Testing and Research Institute， Foshan 528251， Guangdong， China ）

Abstract：  This paper presents a comprehensive analysis of an elevator accident in which the nylon anti-rope wheel （diversion sheave） in the counterweight detached， resulting in the elevator car squatting at the bottom. Through site investigation， functional verification， performance testing， video surveillance analysis， and interviews with relevant personnel， the accident process is reconstructed. The various links and factors contributing to the accident are analyzed， and the causes of the elevator accident are thoroughly investigated and verified. Based on the analysis， relevant suggestions for the safe use of nylon anti-rope wheels and governor-safety gear are proposed.

Key Words：  Nylon anti-rope wheel; Governor-safety gear; Failure; Suggestions

1 事故电梯概况

2022年3月18日，厦门市某小区发生一起对重尼龙反绳轮脱落、轿厢蹲底，造成轿厢内唯一的一名乘客受伤的一般事故。（剩余6712字）