This train animation is really cool just a little movement of the train tracks can change the track, this clever real difference design can be done with a simple trick on wheels and rails, let's take a closer look at how it works, first let's focus on one rail then imagine there is one rail branch diversion will the wheel rotate through the left or right lane, the course of the wheel is unpredictable the wheel used on the rail has a lens on one side of the lens is a wheel safety feature that ensures the wheel will not leave the rail, throughout the video always remember this simple rule because the presence of a wheel lens is not possible to move through the left lane.
If you want to make the wheel spin through the left lane make the right lane into separate sections and turn as shown before the wheel reaches that point, this is the basic concept behind rail shifting, now let's see how it works when both rail pairs appear, vicenza is always on on the inside of the wheel, the portion of the rail that can be turned is called the rail tongue, a pretty name isn't it.
When the tongue of the rail is turned as shown in the picture the train will move on the yellow rail, remember because of influenza the left wheel can't rotate on the light blue rail, because in the same turn the dark blue tongue doesn't touch the rail at all, you can see the big flaw, so the right wheel too can follow the yellow track on that side without difficulty, let's turn the tongue rail in the opposite way.
This time it has been made in the tongue area of the person, in time the train will easily follow the blue rail and move straight, it's a simple and effective mechanism, the length of the moving part of the rail tongue does not need to be too long you can reduce the length of the tongue by turning it like this, we I will explain the advantages of this short tongue length towards the end of the video, using this mechanism the shifting action occurs perfectly but if you run the train on this track it will inevitably slip.
The problem is in the intersection where the real tongues cross at one point, if the design of the track is like this the train will follow the orange tongue, and slip, let's see how to solve this problem, to solve this problem just give the material gaps at the intersection of the track, in the design of the track. In this new train either the train passes left or right lanes the wheels cross the intersection without hitting any lane.
So in this new design the train can change rails and also cross the intersection without any difficulty, here's a little design challenge for you, let's watch the rail wheels move in slow motion in the intersection area you can see that the wheels are dropping in this gap, can you please give the solution to this problem, we can solve this problem by simply increasing the length of the rail tongue as shown.
They will provide good support for the wheels during movement over rail gaps, have you noticed the two additional sections of rail near the intersection, they are called forced rails and they have an important job during crossing most tracks using a larger turning radius this is done so that trains can change crossings yes at high speed smoothly this is the problem.
To share a high radius or low angle deviation track like this, there is a high possibility that the wheels will move on the rail flank, and the train will slip, the rails being forced to be installed with the same gap on the main rail on both sides, even if the wheels try to run on a forced rail wheel flange will prevent this.
This will direct the wheels of the crossing well and the wheels will easily pass the intended track, now let us understand the importance of a shorter rail tongue this is in fact considered a design optimization, can you predict the maximum stress point at this rail crossing, it is at the end of the turn and nose of the rail junction.
This component is replaced very often due to wear and tear compared to the main rail, this is why the real tongue is divided into two parts, when the switch is at the end of its life just replace the rail switch, thus you can reduce the amount of iron that needs to be replaced after wear, the tongue rails are operated together using lo switching.
Far behind this switching road is controlled manually by an operator called man, at this time the electric motor does its job after receiving instructions from the operator, I hope you enjoy the lesson on how railroad crossings work, see you next time, thank you.
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