一起電梯對重尼龍反繩輪脫落轎廂蹲底事故的技術分析

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摘要：通過一起電梯對重尼龍反繩輪脫落、轎廂蹲底的事故，從現(xiàn)場檢驗勘查、性能測試、功能驗證，結(jié)合視頻監(jiān)控分析、相關人員走訪座談等還原電梯事故發(fā)生過程，分析事故發(fā)生的各環(huán)節(jié)、各因素，對電梯事故原因進行深入研究、驗證，提出電梯尼龍反繩輪、限速器—安全鉗安全使用的相關建議。

關鍵詞：尼龍反繩輪；限速器—安全鉗；失效；建議

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 事故電梯概況

2022年3月18日，廈門市某小區(qū)發(fā)生一起對重尼龍反繩輪脫落、轎廂蹲底，造成轎廂內(nèi)唯一的一名乘客受傷的一般事故。（剩余6712字）