电液轨枕式内锁闭道岔转换设备的关键技术及应用

Key Technologies and Application of Electro-hydraulic Sleeper Internal Locking Turnout Switch Machine

[目的]目前常用的电液轨枕式外锁闭道岔转换设备存在机械结构复杂、对土建工况要求高、故障数量多及运维工作量大等问题。对此,提出一种适用、简易、稳定、可靠的电液轨枕式内锁闭道岔转换设备。[方法]由电液轨枕式内锁闭道岔转换设备的整体结构出发,从轨枕式安装、防尘防水技术、优化电缆路径布局、动作机构和表示机构、机械部件整体绝缘及螺栓紧固件防松技术等方面,详细阐述了电液轨枕式内锁闭道岔转换设备的关键技术。新设备在上海轨道交通8号线东方体育中心站1#道岔进行试装测试。[结果及结论]试装测试所得设备指标符合相关技术标准要求,转辙机的防尘防水等级达到IP68标准。根据测试结果,试装电液轨枕式内锁闭道岔转换设备后,液压监测动作压力曲线平滑,锁闭阶段阻力降低显著,转换时间缩短,各螺栓紧固件不松动,运行稳定可靠,运维成本大幅降低。

[Objective]Current commonly used EhsD(electro-hydraulic sleeper external locking turnout switch device)exhibits problems such as complex mechanical structure,high civil engineering requirements,numerous faults,and substantial maintenance workload.To address these issues,the design of a practical,simple,stable,and reliable EhsD is proposed.[Method]Starting from the EhsD overall structure,its key technologies including sleeper installation,dust and water-proof technology,optimized cable path layout,action and indication mechanisms,comprehensive insulation of mechanical components,and anti-loosening technology for bolts are expounded.Trial installation and testing are conducted on the new device at No.1 turnout of Oriental Sports Center Station on Shanghai Rail Transit Line 8.[Result&Conclusion]The trial installation and testing results indicate that the device meets relevant technical standards,with the turnout switch machine achieving a dust and water proof rating of IP68.According to the test results,after installing the trial electro-hydraulic sleeper internal locking turnout switching equipment,the hydraulic monitoring action pressure curve is smooth,with resistance during the locking phase significantly reduced,switching time shortened,and no loosening of bolts and fasteners is observed.The operation of new EhsD is stable and reliable,leading to a substantial reduction in operation-maintenance costs.