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Rail fixtures & fastening Rail fixtures & fastening

Rail fixtures & fastening - PowerPoint Presentation

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Uploaded On 2017-07-23

Rail fixtures & fastening - PPT Presentation

All the fitting which is used for linking of rail end to end amp also for fixing rails to the sleeper in track are known as fixture amp fastening Rail fixtures amp fastening Types of fixtures amp fastening ID: 572366

plate rail spike bearing rail plate bearing spike amp sleeper track fish fastening key bolt connect maintain flat keys prevent wooden types

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Presentation Transcript

Slide1

Rail fixtures & fastening

All the fitting which is used for linking of rail end to end & also for fixing rails to the sleeper in track are known as fixture & fasteningSlide2

Rail fixtures & fasteningSlide3

Types of fixtures & fastening

Fish plate

Bearing plate

Chairs

Spikes

Bolts

Keys & cotters

Anchors &

anticreepers

Slide4

Fish plate

Used to maintain the continuity of rail in a track

Made of mild steel 20mm thick 456cm long provided with 4no. Of 32mm dia.

Hole at

114mm c/cSlide5

Function of fish plate

To maintain continuity of rail in track

To allow expansion & contraction of rail due to temp.

To maintain correct alignment at each rail jointSlide6

Bearing plate

The placed between flat footed rails & wooden sleeper

Type

Flat bearing plates

Canted bearing plateSlide7

Flat bearing plates

Canted bearing plateSlide8

Function of bearing plate

To prevent sinking of rail in wooden sleeper

To distribute the load uniformly

To enable the spike to be held tight

To prevent shifting of rail

To eliminate adding of wooden sleeper

To maintain gauge when bearing plate are used

To achieve economySlide9

Spike

It is require to fix the rail, bearing plates or chairs to

woooden

sleeperSlide10

Requirement of good spike

They should be strong enough to hold the rail, bearing plate and chair in proper position

They should be easy in fixing and removing

They should not come out due to vibrations

They should be cheapSlide11

types

Screw spike

Round spike

Standard spike

Dog spike

Screw spike

Round spike

Standard spikeSlide12

Elastic spikeSlide13

Bolt

To connect various joint in trackSlide14

Function

To connect fish plate to rail

To connect chair or bearing plate to timber sleeper

To connect sleeper to bridge

girdeerSlide15

Types

Fang bolt

Hook bolt

FISH BOLTSlide16

keys

It is require to keep the rail in proper positionSlide17

Type

Timber keys

Metal

key

Stewart key

Spring coiled key

Morgan keySlide18

Anchor or Anti creeper

It is used to prevent the creep in rail

They are available in different shape

The no of anti creeper depend upon amount of creep occurring in the track