Is a train just a train that runs on railroad tracks?

No, like the maglev train, it is not a train that runs on the tracks. Maglev train is a kind of land contactless rail transportation without wheels, the speed can reach 500 kilometers per hour, its binding energy, is the use of constant or superconducting electromagnets and induced magnetic field between the mutual attraction or repulsion force, so that the train "suspended" behind or below the track, for frictionless operation, so as to overcome the traditional train rail adhesion limitations, mechanical noise and wear and other problems, and has the advantages of starting, stopping fast and climbing ability. But in addition to the maglev train, the other trains are trains that run on the tracks.

The train consists of a locomotive (locomotive) and a carriage (passenger car, freight car). They are called passenger trains and freight trains. There are also rail cars dedicated to engineering and maintenance. They run on rails.

The bullet train generally cannot run on ordinary rails, mainly because of the difference between ballasted tracks and ballastless tracks, but now there are exceptions, and the upcoming Beijing-Zhangjiakou intercity railway will become the world's first high-speed railway with a design speed of 350 kilometers per hour.

Ordinary railways use ballasted tracks, while bullet trains and high-speed railways use ballastless tracks.

砟 (zhǎ), fragments of rocks, coal, etc. On railroads, it refers to small stones used as roadbeds.

Ballasted track: refers to the use of gravel as the track bed on the roadbed and the use of cement sleepers, gravel is the stone, its requirements are uniform structure, hard, weathering, good impact toughness, elasticity. The traditional ballasted track has the characteristics of simple laying and low comprehensive cost, but it is easy to deform, frequent maintenance, and the later maintenance cost is large.

Ballastless track refers to the track structure that replaces the loose gravel track bed with the overall foundation of concrete and asphalt mixture, also known as ballastless track, which is the most advanced track technology in the world today.

Compared with the ballasted track, the ballastless track avoids the splash ballast, has good smoothness, good stability, long service life, good durability, less maintenance work, and the train can run at a speed of more than 350km per hour.

1. The rails of ordinary railways.

There is an interface dozens of meters away, and the train is always inseparable from the sound of "clang". When the wheels roll over the rail connection, the wheels vibrate, the carriage vibrates, and the ground also vibrates, and the train is not stable at all, just like a ship on the sea surface with strong winds and waves.

2., rails for high-speed rail.

Let's look at the high-speed rail, when building the road, according to the season, in the thermal expansion and contraction of the rail, when the longest extension, the rails are welded together, so that the rails will not stretch longer, and when it comes to the cold contraction in winter, it will remain undeformed by virtue of the tensile strength of the steel itself.

In this way, the countless interfaces on the steel rails are eliminated, the wheels roll smoothly, the train runs farewell to the vibration of "clang, clang, clang", and the train moves smoothly, just like on a calm sea, and the ship can move forward at full speed.

Summary. Thank you for your patience and have helped you find the result: the reason why the train runs on the tracks is because the train usually pulls some passengers and heavy goods, etc., and the body and wheels of the train are made of steel, resulting in each carriage being very heavy.

If the train runs directly on the road, then it will inevitably lead to the situation where the road will be crushed. This problem can be avoided by using some tracks, which can reduce the pressure on the ground a lot. Another reason is that laying rails can reduce the friction between the train and the ground, because the fast movement of the train can form a relatively weak friction on the smooth track, which is conducive to increasing the speed of the train.

Thank you for your patience, I have helped you to check the results: the reason why the train runs on the tracks is because the train usually pulls some passengers and heavy goods, etc., and the body and wheels of the train are made of steel, resulting in each carriage is very heavy. If the train runs directly on the road, then it will inevitably cause the road to be crushed and noisy.

This problem can be avoided by using some tracks, so that the pressure on the ground can be reduced and carried a lot. Another reason is that laying rails can reduce the friction between the train and the ground, because the fast movement of the train can form a relatively weak friction on the smooth track, which is conducive to increasing the speed of the train.

In addition, the inclination of the track and the slope of the wheel flange are so smooth that only the installation of the train track can make the train turn smoothly. In addition, the track also has a very important role in reducing the area occupied and saving money. And the wheels of the train are solid iron, if you want to travel quickly, you must find a material with high hardness and high toughness to withstand the pressure, therefore, the construction of the track is also very particular, the section of the railway is generally trapezoidal, there are rails on it, and below is the sleeper, the sleeper is the gravel below, if you carefully observe the wheel type oak, you will find that in fact, the gravel is a hard ground under the gravel, this road surface is generally black soil or concrete, It can effectively avoid the situation that the train is stuck in the ground due to stress factors and cannot drive alongside, or even derails and rolls over.

And every wheel of the train has a rim, which is a protruding part of the inside of the wheel. The main function is to prevent the train from derailing and ensure the safe operation of the train.

Kinjing inquiry; Because the rails can provide the stability and directionality that trains need to travel. The rails ensure that the train remains stable during the journey, and will not sway from side to side or deviate from the track. At the same time, the rails can also guide the direction of the train and prevent the train from deviating from the track.

If the train travels on the tracks, it can reduce the friction and resistance to the ground, and improve the efficiency and speed of the train. In addition, the rails can also withstand the heavy field capacity and power of the train, ensuring the safety and reliability of the train. Therefore, the rails are the best choice for train travel.

Overhead trains generally refer to aerial rail trains. The Sky Rail Train (or Air Rail for short) is a suspended monorail system. The track is above the train training car, supported by steel or cement pillars and beams in the air, which is suitable for transportation in small and medium-sized cities.

No, not as far as I know, anyway. The kind you're talking about is supposed to be like a roller coaster, and I've never seen anything like it on a real train.

Insiders call it a rolling car, which is a small means of transportation used by railway maintenance personnel, and the principle is the same as that of a pedal bicycle.

The wheels of the train are iron, and if you want to run smoothly at high speed, you can't use the concrete floor, because the concrete floor is still very rough and easy to break, and the asphalt surface is not hard enough. Unable to carry the entire train. Therefore, it is necessary to rely on materials that can bear the weight and have enough hardness and toughness to make the road surface.

And these are the properties of steel. So the train has to run on steel rails. But rails alone are not enough.

There is a kind of maglev train, which is how it runs, and you can go and see it

The wheels of the train are iron, and if you want to run smoothly at high speed, you can't use the concrete floor, because the cement floor is still very rough and easy to break, and the asphalt floor is not hard enough. Unable to carry the entire train. Therefore, it is necessary to rely on materials that can bear loads and have sufficient hardness and toughness to make road surfaces.

And these are the properties of steel. So the train has to run on steel rails. But rails alone are not enough.

The ground is soft, and even if the rails can bear the weight of the train, the ground can't because the ground has to bear the combined weight of the train and the rails. So that's why the rails have to be laid on a trapezoidal roadbed. If you pay attention, the cross-section of the railway subgrade is trapezoidal (also on bridges), with steel rails on top, then sleepers (now all cement sleepers), and gravel underneath the sleepers to disperse the forces.

Under the gravel is a hard ground that has been pressed many times with a rolling machine, and you can use soil or the kind of black soil used in the highway subgrade. If they weren't built in this way, the rails would have sunk into the dirt because they couldn't bear the weight of the train.

Railway tracks, referred to as rails, rails, tracks, etc. It is used on railways and works with switches to allow trains to travel without steering. The track usually consists of two parallel steel rails.

The rails are fixed on the sleepers, and the ballast is under the sleepers. Rails made of steel can bear more weight than other materials.

Sleepers, also known as sleepers, or sleepers, are used to distribute the weight of the rails separately, and to keep the rails fixed and maintain the gauge of the rails. In general, the bottom of the track is a gravel-paved ballast. Ballast, also known as ballast, gravel or track bed, provides elasticity and drainage to the track.

Rails can also be laid on concrete pedestals (as is common on bridges) or even embedded in concrete.

Because the weight of the train is more than 10,000 tons, ordinary concrete cannot hold this weight, and then, if he walks on it, there is a possibility that the freshly paved road will be forged and crushed nothing.

The "wheels" of the train are special, and the rails are designed for the train.

Wheels like trains can only run on railroad tracks.

Because the wheels of the train are made of iron, it can't run on the road.

Because the train is heavy, it is easy to get stuck in it on ordinary roads.

In order to ensure the smooth and fast operation of the train, of course, it is necessary to run on a specific track.

Because. Trains are made of iron, and it is not possible to walk on the road.

Because the train is too heavy, the ordinary road surface cannot bear it.

Only in this way can it run better.

The rails are specifically designed for trains.

The body and wheels of the train are made of steel, and there are many goods and passengers pulled, so each carriage is heavy. If it runs on an ordinary asphalt road, it will sink into the ground and will not be able to walk a single step.