铁路道岔转辙机安装装置故障分析

doi:10.3969/j.issn.1673-4440.2022.02.021

铁路通信信号工程技术 ›› 2022, Vol. 19 ›› Issue (2): 94-99.DOI: 10.3969/j.issn.1673-4440.2022.02.021

铁路道岔转辙机安装装置故障分析

陈磊

西安铁路信号有限责任公司，西安 710100

收稿日期:2020-11-09 修回日期:2021-11-22 出版日期:2022-02-25 发布日期:2022-02-25
作者简介:陈磊(1985—)，男,工程师,硕士,主要研究方向：道岔转换设备可靠性研究，邮箱：chenlei5@crsc.cn

Fault Analysis on Installation Device of Switch Machine

Chen Lei

Xi’an Railway Signal Co., Ltd., Xi’an 710100, China

Received:2020-11-09 Revised:2021-11-22 Online:2022-02-25 Published:2022-02-25

摘要/Abstract

摘要： 针对道岔转辙机安装装置与尖轨连接处的尖端铁出现断裂故障的问题，采用现场测试结合有限元仿真的方法对故障原因进行分析研究。通过对道岔及转辙机安装装置进行三维建模和有限元模态分析，结果表明，道岔及转辙机安装装置系统一阶模态与实测得到的斥离侧基本轨响应频率接近，判断道岔斥离轨的振动响应引起转辙机安装装置共振是造成转辙机安装装置尖端铁断裂的主要原因。根据故障原因给出维护建议：针对有砟道床应定期对道岔牵引点处进行维护，保障道岔基本轨在牵引点处的支撑刚度，避免道岔系统局部共振。

关键词: 道岔, 尖端铁, 断裂故障, 有限元模态分析, 振动测试, 共振

Abstract: In view of the connecting iron fracture at the connection between the installation device of switch machine and switch rail, the fault cause is analyzed and studied by the method of ﬁeld test combined with finite element simulation. Through three-dimensional modeling and finite element modal analysis of turnout and switch machine installation device, the results show that the ﬁrst order modal of turnout and switch machine installation device system is close to the measured response frequency of stock rail on repulsion side. Combined with the modal analysis results and the actual test results, it is concluded that the resonance of switch machine installation device caused by the vibration response of turnout repulsion rail is the main reason for connecting iron fracture. Maintenance suggestions are given according to the fault cause: for ballasted track bed, the turnout traction point shall be maintained regularly to ensure the support stiffness of the track at the traction point and avoid local resonance of turnout system.

Key words: turnout, connecting iron, fracture fault, ?nite element modal analysis, vibration test, resonance

中图分类号:

U213.6

陈磊. 铁路道岔转辙机安装装置故障分析[J]. 铁路通信信号工程技术, 2022, 19(2): 94-99.

Chen Lei. Fault Analysis on Installation Device of Switch Machine[J]. Railway Signalling & Communication Engineering, 2022, 19(2): 94-99.

图/表 8

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铁路道岔转辙机安装装置故障分析

Fault Analysis on Installation Device of Switch Machine

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