Presentation on Coach Care Complex

This is a complete presentation on Internship at Coach Care Complex, Jaipur, North Western Railway.

1. GLOBAL INSTITUTE OF Technology Department Of Mechanical Engineering Seminar On Industrial training in “COACH CARE COMPLEX” North Western Railway, Jaipur Presented By:- Ritik Baghmar 16EGJME102 7 th Sem (B) Presented To:- Mr. Shabbir Aalam

2. CONTENT: INTRODUCTION HISTORY RAILWAY COACHES DIFFERENCE TYPES OF RAILWAY COACHES MAIN PARTS OF A RAILWAY COACH BOGGIE WHEEL SUSPENSION SYSTEM BRAKING SYSTEM IN RAILWAY BOGIE C.D.T.S MAINTENANCE

3. INTRODUCTION Indian railways is 4th largest railway network having route length of 64,460 kms. Over 12,000 trains carries over 30 million passengers and 2.8 millions tones of freight daily. Word’s largest public sector enterprise with 1.5 million employees

4. HISTORY: The first railway proposals for India were made in Madras in 1832 By 1946 all 42 rails system taken over by govt. to make a single nationalized network India's first passenger train, hauled by three steam locomotives (Sahib, Sindh and Sultan), ran for 34 kilometres (21 mi) with 400 people in 14 carriages on 1,676 mm (5 ft 6 in) broad gauge track between BoriBunder (Mumbai) and Thane on 16 April 1853

5. COACHES: A passenger car ( known as coach or carriage in the UK, and also known as a bogie in India) is a piece of railway rolling stock that is designed to carry passengers. The term passenger car can also be associated with a sleeping car, baggage, dining, railway post office and prisoner transport cars.

6. Types Of Coaches: ICF Coaches LHB Coaches

7. DIFFERENCE: S.No . Respect Of ICF Coaches LHB Coaches 1 Full Form Indian Coach Factory Link Hoffman Bush 2 Maintenance Need After 3500 km 4500 km 3 Life 25 year 35 year 4 Permissible Speed 110 Km/Hr. 160 Km/Hr. 5 Coupling Screw Coupling CB Coupling 6 Type Old New (After 2001) 7 Brake Type Shoe B rake Disk Brake 8 Generator Car No need Needed

8. PARTS OF RAILWAY COACH:

9. SKECHAMATIC VIEW OF BOGGIE

10. PARTS OF BOGIE:

11. WHEEL:

12. There are mainly 2 types of suspension for the trains. Primary Suspension: The primary suspension mainly consists of normal spring damper system which is used for structural suspension of the train. They are present in every bogie between the axle box and the bogie. Secondary Suspension: This the airbag that is present between the car and bogie frame as shown in the figure above. This is a primarily to aid comfort the passengers travelling. Secondary suspension is generally a pneumatic suspension SUSPENSION SYSTEM:

13. AIR BREAKING SYSTEM Brakes applied with the help of air are called Air Brakes and the system actuated to apply this phenomenon is known as Air Brake System. On the basis of type of release, air brake system is classified as: DIRECT RELEASE SYSTEM:- Air released immediately in single pass, as soon as releasing of brakes is initiated. E.g.: freight trains GRADUATE RELEASE SYSTEM:- Brake cylinder pressure can be reduced gradually in steps in proportion to the increase in brake pipe pressure. E.g.: passenger trains

14. MAIN COMPONENTS OF AIR BRAKE 1) Compressor:- Compresses the air it draws from atmosphere for the use in AB and other pneumatic devices on train. 2) Main reservoir:- Store compressed air for braking and other pneumatic applications. 3) Breaking pipe(BP) and Feed pipe(FP):- They run throughout the length of the coach. They are coupled to one another by hose coupling to form a continuous air supply from locomotive to the rear end of train. 4) Auxiliary Reservoir:- It is continuously charged through feed pipe. This ensures full break force during emergency in case of leakage in break cylinder. 5) Distributor:- A distributor is simply a sophisticated triple valve. It is connected to Brake Pipe, Auxiliary Reservoir and Brake Cylinde r

15. Working Of Air Brake System: When no brakes are applied, the Brake cylinder is connected to atmosphere through a hole in distributor valve. To apply brakes, the driver move the handle. With this movement, the BP pressure is reduced. This decrease in Pressure is sensed by the distributor valve against the Control Reservoir pressure. Air from the auxiliary reservoir enters the break cylinder and the breaks are applied. The diagram below shows the position of Break Cylinder, Auxiliary Cylinder ,distributor (triple valve) in Brake application.

16. Breaking System:

17. BUFFER: Buffers are the horizontal shock absorbing part with coupling the adjacent coaches of the train so need regular changing of shock absorbing rubber pads.

18. ALTERNATOR: Alternator produces power while train was running . Normally the power consumption of non AC Coach is 110V and for AC is 415V. In AC coach it use two face alternator.

19. CONTROLLED DISCHARGE TOILET SYSTEM (CDTS):   LHB coaches are fitted with controlled discharge toilet units to avoid soiling of track in station. The toilet system is designed to operate with a pressurized water bowl wash the covers 100% of the toilet bowl area. The waste is removed from the toilet bowl and transferred to a retention tank with a minimal amount of water. Water consumption is only 2.5 liters per flush cycle for the indian style toilet bowl and 1.5 liters for the european style toilet bowl. This system works on electrical and pneumatic pressure arrangement. This system starts working on a single push of flush swith . As th flush switch is pressed, water flows into the toilet bowl and the upper side valve opens which is connected between the toilet bowl and retention tank. All the toilet waste is transferred into the retention tank. The lower side valve of retention tank opens and the toilet waste accumulated in the tank is discharged out of the tank to the rail side, away from station and city.

20. TRAIN MAINTENANCE: Washing line :- After every 2500 km Sick line :- “A” maintenance- 1 month Schedule “B” maintenance- 3 months Intermideate Overhauling(IOH)- 9 months or 2,00,000 km Periodic Overhaul(POH)- 18 months or 4,00,000 km Platform Train Duty:- On starting & ending stations

21. RAIL TRAVELLING CRANE: Have two crane hooks Main hook(35 ton capacity) Auxiliary hook(5 ton capacity SICK LINE: Sick line is the workshop for the major and periodical maintenance of the coaches it consists of modern facilities like pit for working under frame And crane for separation of coach & bogie for repair of all type of defects like:- Repairing of damaged coaches. Maintenance of coaches. Heavy cranes used for lifting.

22. BREAK MAINTENANCE   Changing of brake blocks. Adjustment of stroke length. Changing of brake cylinder. Leakages in breaking system.

23. BREAK TESTING: Here S.C.T.R used for testing the brake and it’s cylinder that acts as the main reservoir. There are two pressure potentials i.e. 5kg/cm2 in brake pipe and 6kg/cm2 in feed pipe

24. PRIMARY MAINTENANCE: Wheel profile. Oil in hydraulic dash pot. Axle box. Brakes blocks & piston stroke. Pest control treatment.

25. SECONDARY MAINTENANCE: Washing And Painting of coach body. Linen cleaning. Washing. Maintenance of A.C. equipment's. Clearing Blockage.

26. Thank You