Treasures take the subway every day.
Have you ever thought about it.
What are the parts of a subway train?
It's okay if you don't know.
Let's immerse ourselves in "building" the subway.
Generally speaking. The subway car consists of the following seven parts.
BodyThe body is the body that houses the passenger and driver driving (for vehicles with a driver's cab) and is the basis for the device and other equipment and components. Generally, there are underframes, end walls, side walls and roofs.
Power bogies and trailer bogiesThe power bogie and trailer bogie equipment are located between the car body and the track, which is used to tow and guide the vehicle to run along the track, accept and transmit various loads from the car body and the line and buffer its power effect, which is the key part to ensure the working quality of the vehicle. Generally, it is composed of frame, spring suspension equipment, wheelset axle box equipment and braking equipment.
Traction buffer coupling deviceIt is necessary to use the connection equipment for the car marshalling work, and in order to improve the longitudinal stability of the train, the buffer device is generally installed at the rear of the coupler, so that the train runs more smoothly.
Braking equipmentBraking equipment is an indispensable equipment to ensure the safe work of trains. In addition to conventional air braking equipment, urban rail vehicle braking equipment also includes regenerative braking, resistance braking and magnetic rail braking.
The device that receives the streamThe equipment that introduces the current into the EMU from the contact wire (catenary) or conductive rail (third rail) is called a current receiving device or current collector. According to its current receiving method, the current receiving equipment can be divided into the following five methods: rod current collector; bow current collector; Surrounding surface current collector; orbital current collector; Pantograph current collector.
Interior equipment of the vehicleThe internal equipment of the vehicle includes the fixed subordinate equipment in the car body serving the passengers and the equipment serving the work of the vehicle, and the former is attributed to the vehicle electricity, ventilation, heating, air conditioning, seats, handles, etc. Most of the equipment serving the vehicle work is hung on the underframe, such as battery box, relay box, main control box, electric air compressor unit, main air cylinder, power transformer, various electrical switches and contactor boxes.
Vehicle electrical systemVehicle electrical includes various electrical equipment on the vehicle and its control circuits. According to its function and function, it can be divided into main circuit system, auxiliary circuit system and control circuit system.
After reading it, the treasures are on the train they usually take.
What about a closer look?
*: Shenzhen Metro.