With the continuous development of rail transit industry, the comfort level of drivers and the flexibility requirements of customers for the different vehicle of console are continuously improved. At present, the lifting pedal has been widely used in the industry, which are hydraulic and electric type. Pure mechanical lifting pedal has not been applied in the rail transit vehicles. Considering the service life and reliability of the products, many customers, especially foreign customers, require the pure mechanical structure to meet the requirements of different vehicle models and meet the requirements of different drivers for the console. This paper proposes a kind of pure mechanical lifting pedal applied to rail transit vehicles, which can meet the adaptability of the console to different vehicle bodies and drivers, and greatly improve the universality and reliability of the application.

Carbon fiber composites have great application prospects in the field of rail transit. In order to study the application of carbon fiber composite materials in rail car end boxes. Firstly, the carbon fiber paving structure was designed, and then the product performance of carbon fiber car end box was studied by finite element analysis calculation and sample test verification method. The research results show that the weight of the car end box of carbon fiber composite is about 45% of the weight of carbon steel and stainless steel box, about 72% of the weight of aluminum alloy box, and the weight reduction effect is remarkable. The static strength and fatigue life of the box are the test results of insulation withstand voltage and protection grade all meet the standard requirements and have passed the test verification. The carbon fiber composite car end box can be used and promoted on rail transit.

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In this paper, the function of isolating carbon powder and water in the labyrinth structure on Grounding Device of Railway Passenger Vehicles is studied. The possibility of carbon powder and water entering the bearing through the labyrinth structure under the condition of seal failure of the grounding device is analyzed.

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