交流 25 kV市域快线A型车辆检修修程研究

李强

Repair Schedule of A\|type Vehicles on City Rail Express Line Using AC 25 kV

LI Qiang
摘要:
目的:车辆检修修程是确定车辆基地设计规模的重要依据,市域快线车辆检修修程目前尚无统一的国家标准,为准确计算市域快线车辆基地设计规模,需要对市域快线车辆检修修程进行研究。方法:结合成都轨道交通18号线的设计实践,对AC(交流电)25 kV市域快线车辆特点进行分析,统计对比了已运营的市域快线(北京地铁首都机场线及温州轨道交通S1线)的车辆检修修程,分析市域快线车辆检修里程、检修周期及停修时间的特点。在分析影响市域快线车辆检修修程的主要因素(车辆技术参数、车辆最高运行速度及线路条件)的基础上,提出AC 25 kV市域快线A型车大架修、定修、周月检的检修里程及检修周期。结果及结论:双日检的检修周期为2 d,检修时间为2 h;双周检的检修里程约为11 250 车km,停修时间为0.5 d;三月检的检修里程约为67 500 车km,停修时间为2.0 d;定修的检修里程为15~20万车km,停修时间为7.0 d;架修的检修里程为75万车km,检修周期为5年;车辆大修的检修里程为150万车km,检修周期为10年。
Abstracts:
Objective: The repair schedule of vehicles is an important basis for determining the design scale of vehicle bases. There is no uniform national standard yet for the repair schedule of city rail express (abbreviated as CRE) vehicles. In order to accurately calculate the design scale of CRE vehicle bases, it is necessary to conduct research on the repair schedule of CRE vehicles. Method: Based on the design practice of Chengdu Metro Line 18, the characteristics of AC (alternating current) 25 kV CRE vehicles are analyzed. Statistical comparison of vehicle maintenance and repair process of CRE lines that are already in operation (such as Beijing Capital Airport Line and Wenzhou Urban S1 Line).is conducted, characteristics of the mileage, repair cycle, and downtime of CRE vehicles are analyzed. Based on the analysis of the main factors affecting the repair process CRE vehicles (vehicle technical parameters, the maximum operating speed, and line conditions), the repair mileage and repair cycle for major repair, regular repair, and weekly/monthly inspections of AC 25 kV CRE A\|type vehicles are proposed. Result &Conclusion: The proposed maintenance cycle, maintenance time for double day inspection are 2 days and 2 hours; the maintenance mileage and downtime for biweekly inspection are 11 250 vehicle kilometers and 0.5 days; the following sequences are 67 500 vehicle kilometers and 2.0 days for maintenance mileage and downtime in three months; 150 000~20 000 vehicle kilometers and 7.0 days for regular inspection; 750 000 vehicle kilometers and 5\|year maintenance cycle for unwheeling repair; 1.5 million vehicle kilometers and 10\|year maintenance cycle for major repair.
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