УПП 2 курс / Иностранный язык / английский 3 семестр защитное слово

1 Good morning, everyone. I am very pleased to be here with you today. First, I would like to introduce myself. My name is Tatiana. I am a second-year student of the Railway Transport Management Faculty.

2 The purpose of the project is presented on the slide.

3 This article presents the structure, the history of the invention and development of the railway turnout, its types.

4 Railway turnout is a mechanical device that used to guide the trains from one rail track to another. As an important part in rail construction, turnout helps to enable the trafficability of the rail.

Through leverage principle, the railroad switch rod switches the two movable rails to ensure the trains drive into the appointed route.

5 The slide shows the first version of the railway turnout. it has undergone many changes since then.

6 Single turnout is consisting of three parts: railroad switch, connection part, frog and guard rail.

7 By using the switch machine to change the position of switch rail, a train can change the running routes from A to B. Put point rail I close to stock rail I and separate point rail II from stock rail II, then the route B will be opened and route A will be closed.

8 One set of railroad switch includes 2 stock rails, 2 switch rails and a switch machine. It is used to change the position of switch rails by switch machine to ensure the turnout open direction.

Connection parts consist of 2 straight rails and 2 curve guide rails, which are help to connect the switch rail with frog and guard rail as a complete railway turnout.

Frog and Guard Rail is made up of guard rail, wing rail and railway frog to ensure the safety trains passing through the junction of two routes.

9-13 According to different structures and usages, there are different kinds of railway turnout, such as single turnout, equilateral turnout, three-way turnout, multiple slip switch, diamond crossing and double crossover, etc.

14 This slide shows a table with all the values of the marks of the turnout, their weight and the gauge width on which they are used.

15 In conclusion, I want to say that railway turnout is widely applied on railway stations and marshalling stations, it helps increase the carrying capacity of railway lines to avoid railway lines being used by single train for single direction. 

16 Thank you so much for your attention, and finally, I would be happy to answer your questions.