LOCOWORKSHOP,CHARBAGHLOCOWORKSHOP,CHARBAGH

NORTHERN RAILWAY DIVISIONNORTHERN RAILWAY DIVISION

LUCKNOWLUCKNOW

BY:

MAYANK SINGH

B.TECH(M.E)-IV YEAR

0621640026

RAILWAYS-A Brief HistoryRAILWAYS-A Brief History

By 1849, The Indian Peninsular Railway took the work.

By December 1851, the first Steam Loco was invented.

THE TIMELINE

16 APRIL 1853Borebandar-Thane

15 AUGUST 1854Howrah-Hoogly

1 JULY 1856Vayarsarpandi-Wajianrode

3 MARCH 1859Allahabad-Kanpur

14 FEBRUARY 1873Delhi-Rivari

1922NEW PHASE FOR RAILWAY EXTENTION IN INDIA

LOCO-Simple NomenclatureLOCO-Simple Nomenclature

W A G 7

GAUGE

FUEL/POWER CONSUMPTION

USAGE OF LOCOMOTIVE

MODEL NO

BOGIE-A brief descriptionBOGIE-A brief description

4 wheel set is known as Bo-Bo type.

6 wheel set is known as Co-Co-CO type.

Former type is used as

COACH

GOODS WAGON

• Later type is used as LOCOMOTIVE

Comprises of bogie frame and the loco weight

mounted on it.

EQUIPMENTS in a BogieEQUIPMENTS in a Bogie

It comprises the Bogie

frame.

The bogie frame has the

Axle and wheel

arrangements.

The SUSPENSION

system.

The BRAKING system.

AXLE and WHEEL AXLE and WHEEL arrangementsarrangements

LOCO is a Tri-mount Bogie

arrangement.

COACH is a Double-mount

Bogie arrangement.

Direct drive is given.

DC series motors are mounted

over axles to provide parallel

drive.

TRACTION MOTOR is used to

provide torque.

WHEEL-conventionally used..WHEEL-conventionally used..

1992 was marked with the

commencement of the last

STEAM driven LOCO.

Spoke wheels were replaced

by modern Disc wheels.

Tiered Disc wheel was a

failure.

Solid Disc wheel are popular.

TRACTION MOTORTRACTION MOTOR

To provide direct drive, each axle

is mounted with TM.

DC power is supplied.

Direct torque is provided to each

axle which drives the wheel.

Intermingling of Wheel Pinion and

Traction Spur gear occurs.

Arrangement of SAND BOX is

necessary.

SAND BOXSAND BOX

During rains, wheels of the train slip upon the tracks when at

very high speed.

Difference in flow of current between two particular TM

increases to 180 A.

Normal current variation permissible is 50 A.

Thus Sand box are automated at such situations.

Finely grained Sand pours upon the moving wheels.

Slippage is reduced.

GEAR CASE and AXLE BOXGEAR CASE and AXLE BOX

Gear cases are provided above the messed Spur gear and

Wheel Pinion.

10 to 12 liters of ZERO character oil is filled in the Gear Case.

This lubricating oil cools the gear arrangement.

Axle box contains bearings that help

rotate the wheels.

• During maintenance, axle box is checked

for heating up.

SUSPENSION SYSTEMSUSPENSION SYSTEM

Each Loco bogie has eight outer

and inner springs each.

The spigot at the bottom of the

Spring buckle engages in a bush

seat located at the crown of the Axle

Box.

Spring stops prevent breakdown.

Motor suspension unit i.e. rubber

sandwich holds the traction motors.

BRAKING SYSTEMBRAKING SYSTEM

Braking system is Pneumatically

controlled.

In each bogie, four brake cylinders

are fixed.

Brakes are double acting in

nature.

Servo motor controlls the

movement of cylinders.

Fiber brake blocks are used.

Braking-Other detailsBraking-Other details

Braking is done in Series manner.

No brakes are applied on the LOCO.

Cutoff lever fitted at the drivers end.

Maximum brake power applied is 2.5 kg/cm sq.

Brake timing-

For full braking is 9 secs to 12 secs.

For full release is 9 secs to 13 secs.

Whole unit is known as Brake Hanger Lever.

MAINTENANCE/INSPECTIONMAINTENANCE/INSPECTION

Various periodic inspections are made to

ensure proper functioning of the LOCO

• TRIP INSPECTION• MONTHLY INSPECTION• TWO MONTHLY NSPECTION• FOUR MONTHLY INSPECTION• YEARLY INSECTION• POH INSPECTION

POH inspectionPOH inspection

It is accomplished either after 9

years or 9 lacs km.,whichever is

earlier.

Dismantling of bogie is done.

Parts are cleaned in acidic

solution for about four hours.

Axle box is checked for heating

up.

Evidence of cracks and other

defects are replaced.

Brake RiggingBrake Rigging

Nuts on brake head pins should be tightened to prevent shoe

to drag at jerks.

Clearance between hangers and bogie frame is checked.

Brake shoe and brake blocks are checked whether they are

fixed properly.

Brake cylinder is dismantled, cleaned and lubricated.

Livers functionality is checked for suction of air.

All parts are finally remounted after inspection.

Bogie ManufacturingBogie Manufacturing

Initially done by Casting.

Generated cracks

Rate of success was 60 %.

replacement was difficult.

Fabrication is done now a days

Welding and Oxycutting is done.

Rate of success is 80 %.

replacement of parts is easy.

Bogie-Fuel TankBogie-Fuel Tank

Capacity of fuel tank- 5000 litres.

At full load, consumption is 325-365 litres/hour.

Average fuel consumption is 45 litres/hour at

standby mode.

Approximately, 5.5 litres/km.

Loco- Brief DataLoco- Brief Data

Weight of complete loco-123 tons.

Weight of Loco body is 73 tons.

Weight of complete bogie is 25 tons each.

Load exerted per axle is 20.5 tons.

Weight of Traction motor is 3.80 tons.

Wheel set with gears is approx. 2.15 tons.

Manufacturing unitsManufacturing units Coaches- Integral Coach Factory,Perambur,Chennai.

Rail coach factory, Kapurthala,Punjab.

Wagons-BEML(Bharat Earth Movers Limited).

Diesel components Workshop at Punjab.

Major workshops-

DLW(Diesel Loco Workshop) at Varanasi.

Chittaranjan Loco Workshop.

BHEL also manufacture on contract basis.

RDSO is the authentification Unit of railways.

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