The utility model discloses an automatic conversion type pantograph lifting system for urban rail vehicles. The pantograph lifting system comprises a pedal pantograph lifting pipeline and an electric control pantograph lifting pipeline, wherein the pedal pantograph lifting pipeline comprises a manual valve communicated with a pedal pump; the electric control pantograph lifting pipeline comprises an electric control valve communicated with a main pipe wind source; the manual control valve is communicated with a pantograph via a pneumatic control reversing valve and one end of a shuttle valve; the electric control valve is communicated with the pantograph via a one-way sequence valve and the other end of the shuttle valve; the output end of the one-way sequence valve is communicated with a control pressure cavity of the pneumatic control reversing valve; and the opening pressure of the one-way sequence valve is higher than the pantograph lifting working pressure of the pantograph. The manual valve, the pneumatic control reversing valve and the shuttle valve enables the air pressure generated by the pedal pump to be used for pantograph lifting, and a button on the manual valve is only used for artificial pantograph lowering; and the electric control valve, the one-way sequence valve, the shuttle valve and the pneumatic control reversing valve enables the air pressure of the main pipe wind source under electric control to be used for pantograph lifting. The automatic conversion type pantograph lifting system realizes automatic conversion from pedal pantograph lifting to electric control pantograph lifting, and is convenient to operate, has safety and reliabllity, and is easy to implement and popularize.

介绍了Nabtesco公司HRA制动系统的构成,并对该系统的有关功能做了相应描述,最后提出了制动系统未来的发展方向。

Based on a research of the conversion of brake command,the confirmation of braking increase rate,the braking capacity,the braking point of the straight brake in metro vehicles and the automatic brake of main line trains,this paper attempts to solve the matching problem between brake command classification and brake performance of two brake systems,that means metro vehicles can receive and execute the command sent by main line trains,and keep the braking retardation of metro vehicles consistent with the retardation of goods trains.So the metro vehicles can interact basically with the main line trains.

简要介绍了深圳地铁1号线续建工程车辆制动系统。阐述了城市轨道交通车辆制动管理的原则及主要内容。结合车辆制动特性分析说明了深圳地铁1号线续建工程的车辆混合制动模式及制动力分配方案,并分析说明了深圳地铁1号线续建工程车辆停车制动管理的特点。介绍了深圳地铁1号线续建工程车辆制动控制原理及网络结构,结合制动控制原理对深圳地铁1号线续建工程车辆制动管理实现方式进行了分析说明。

The principle analysis and parameters calculation for the air supply system of straight electro-pneumatic brake system on metro vehicle are given,which provides reference for the design of metro vehicle's brake system.

Based on the comparison of type DK-1 braker command area and CIS brake system action area,this paper researches the possibility of type DK-1 braker applying in CIS brake system,and analyses the respects to adjust for type DK-1 braker to be fully compatible with CIS brake system.

结合我国机车制动机的发展史,提出了现阶段我国机车制动机的发展要求与目标,并对新型机车制动机的基本型式、基本功能、操作控制模式、空电联合制动模式的选择等提出了一些观点.

Basing on the brake system in type SS 6B electric locomotive,this paper systematically introduces and analyses new tech nology as brake logic control applied on type DK-1electro-pneumatic brake.