EMU is a railway vehicle equipped with wheel-driven mechanical equipment, not an EMU. Not only high-speed trains have bullet trains, but all types of vehicles, including constant-speed EMUs, ordinary-speed trains, subway trains, light rail trains, monorails and maglev trains, have bullet trains.
The differences between bullet trains and high-speed trains are as follows:
1, different speeds: the speed of bullet trains can reach 200-250km/h, while the speed of high-speed trains can reach 300-350 km/h. The National Development and Reform Commission of China defines China's high-speed railways as new or existing railways with a speed of 200 km/h or more, and has issued the corresponding document "Medium and Long-term Railway Network Planning".
2. Different models: different models of trains, the bullet train starts with "D", such as D 3100; ; High-speed rail starts with "G", such as G 1635.
3. The working principle is different: the high-speed rail does not use locomotives to pull trains, but uses EMUs. Almost all wheels run together, which has great unity and cooperation and flexible speed change, thus improving the speed.
Locomotive structure
The structure of motor cars has the characteristics of passenger cars, diesel locomotives or electric locomotives. The car body, underframe and running gear are basically the same as those of passenger cars. The main difference is that there are driving control equipment and observation windows at both ends of the motor car body, and the engine room is behind the cab at one end, which is equipped with diesel engine and transmission device. The underframe is lighter than ordinary buses.
Generally, there is only one driving bogie in the running part of the motor car with less power, and the other is the same as that of the ordinary passenger car. The traction motor and the shaft transmission gearbox are installed on the driving bogie of the electric motor car. The driving bogie of mechanical transmission motor car is equipped with axle drive gearbox and universal shaft.
There are two ways to drive bogies by hydraulic transmission: one is the same as the mechanical transmission motor car; The second is to install the diesel engine and hydraulic transmission device on the bogie to make the structure compact. The diesel engine is installed in a hole in the floor of the car body and extends into the lower part of the car body. This extension is separated from the front driver's console and the back seat by sound insulation wallboard, forming a machine room, and all auxiliary equipment of diesel engine are installed in the machine room.
This arrangement takes up less car body area. In order to have more seats, some motor cars use horizontal diesel engines with power below 360 kW, and auxiliary equipment such as diesel engines, transmission devices and coolers are installed under the underframe of the motor car.
Low power adopts mechanical transmission device, and high power adopts hydraulic transmission device to drive bogie wheels; The more powerful one uses two sets of horizontal diesel engines and transmission devices to drive the wheels of the front and rear bogies respectively. An electric car is basically the same as an electric locomotive except that the car body has seats, but the power is small.
What's the difference between high-speed rail and bullet train? Finally understand the difference between high-speed rail and bullet train.
1, different speeds: the speed of bullet trains can reach 200-250km/h, while the speed of high-speed trains can reach 300-350 km/h. The National Development and Reform Commission of China defines China's high-speed railways as new or existing railways with a speed of 200 km/h or more, and has issued the corresponding document "Medium and Long-term Railway Network Planning".
2. Different trains: the trains of motor trains start with "D", such as D 3100; ; High-speed rail starts with "G", such as G 1635.
3. The working principle is different: the high-speed rail does not use locomotives to pull trains, but uses EMUs. Almost all wheels run together, which has great unity and cooperation and flexible speed change, thus improving the speed.
4. The rails used are different: bullet trains can use rails special for high-speed trains or ordinary trains, while high-speed trains can only use rails special for high-speed trains.
5, the number of platforms is different: the high-speed rail is a dedicated line, so there are few platforms in the whole process; Train owners are mainly intercity lines, and there are relatively many platforms.
The above contents refer to Baidu Encyclopedia-High Speed Rail.
The difference between bullet trains and high-speed trains lies in different trains, different speeds, different tracks and different driving requirements.
First, the number of trains is different
The number of trains is different, that is, the number of trains with G prefix and D prefix. The D-prefix and G-prefix trains we often talk about are EMU trains. However, in life, we are used to calling the D-prefix train a bullet train and the G-prefix high-speed EMU train a high-speed train.
Second, the speed is different.
The speed of high-speed rail is 300~350 kilometers per hour, and the speed of motor train is more than 200 kilometers per hour. According to the different speed, the price of the purchased air ticket is also different.
Third, the tracks are different.
The rails for high-speed rail are special rails, such as Beijing-Shanghai high-speed rail. The rails used for bullet trains can be either special rails for high-speed trains or modified common rails with good compatibility.
Third, different driving requirements.
Because the high-speed rail can be called a dedicated line, there will be few platforms on the whole line. The bullet train mainly runs on the intercity line, so there will be more platforms on the whole line. At present, the trains running on high-speed railways in China are all EMU, with 8 cars in each group. Among them, there can be six trailers, that is, six cars have power and the other two cars don't. It can also be four trailers, and there will be eight cars with power.
High-speed rail transfer mode:
1, outward transfer
The most primitive way to transfer is to take the bus out of the station and then check in.
2. Convenient transfer in the station
Generally speaking, the channel will be indicated by an arrow. Generally, you can reach the waiting room by swiping your ID card. You don't need to check your luggage again. You can make a convenient transfer by asking the platform staff or looking for indicators.
The difference between high-speed rail and bullet train; The difference between high-speed trains and high-speed trains
1. Speed difference: the bullet train speed can reach 200-250km/h, and the high-speed train speed can reach 300-350 km/h. The National Development and Reform Commission of China defines China's high-speed railway as a new or existing railway with a speed of 200 km/h or above, and has issued the corresponding document "Medium and Long-term Railway Network Planning".
2. Different trains: trains start with "D", such as D 3100; High-speed trains begin with "G", such as G 1635.
3. The working principle is different: the high-speed rail does not use locomotives to pull trains, but uses EMUs. Almost all the wheels run together, which is not only strong in unity and cooperation, but also flexible in speed change and improves the speed.
4. Different tracks used: EMU can use high-speed rail or ordinary train track, and high-speed rail can only use high-speed rail.
5. Difference in the number of stations: the high-speed rail is a dedicated line, and there are few stations in the whole journey; Moreover, train owners are mainly intercity lines, and there are relatively many platforms.