Fiat Bogie Presentation
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Transcript of Fiat Bogie Presentation
![Page 1: Fiat Bogie Presentation](https://reader033.fdocuments.in/reader033/viewer/2022061204/547ee2a1b47959c5508b4c4e/html5/thumbnails/1.jpg)
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DESIGN FEATURES:
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FIAT BOGIE
SUB-SYSTEMS
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BOGIE FRAME Y-FRAME -STEEL SHEETS(St-52) TWO SIDE FRAMES CONNECTED BY TWO
CROSS BEAMS -SUPPORT BRAKE UNITS. BOGIE FRAME ON THE PRIMARY SPRINGS
AND SUPPORTS VEHICLE BODY THROUGH BOLSTER.
BOLSTER-BOGIE FRAME THROUGH SECONDARY SUSPENSION.
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BOGIE FRAME
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BOGIE FRAME
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Primary Damper
Primary Spring assly
(Bogie frame lifted)
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MATERIAL PROPERTIES:S355J2G3;EN10025
GS20Mn5V;DINl:17182
SG400/18;IS:1865
SG400/15;IS:1865
UTS IN Mpa 490-630 500 – 650 400 400YIELDSTRENGTHMpa
355 360 250 250
ELONGATION %AGE
22 24 18 15
IMPACT 27J AT -200C
70 J -- --
CHEMICAL%AGE:
C 0.23, Mn1.7, Si 0.6, S&P 0.045
C 0.17 to0.23, Si 0.60,Mn 1.00 to1.50, S0.020,P0.015, Cr 0.30, Mo 0.15, Ni0.40
---- ---
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Primary suspensionFour nos each per bogie -nested coil
springs, primary vertical dampers, control arm, elastic joints-connecting the bearing on wheelset to bogie frame.
Flexible guidance.
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Rubber Pad
Spring Guide Outer Spring
Inner Spring
Bump StopLower Spring Guide
(Primary exploded)
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(Wheel set with Primary suspension)
Control Arm
Bearing Assly with earthing
eq./speed sensor
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C
Primary Damper
(Wheel set with Primary springs removed)
Control Arm
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Two brake disks (4), diameter 640 mm and width 110 mm.
Two wheel discs of dia 915 (New), 845 (worn).
Wheelset
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Wheel & Axle Assly
Brake Disc
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DIMENSIONS OF WHEEL SET:
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Wheel Disc:
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DYNAMIC BALANCING 320RPMLESS THAT/EQUAL TO 50GM.MGLUE THE NEEDED WEIGHTS.
Wheel Re-profiling and balancing:
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DETAIL OF ADDED WEIGHTS:
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CARTRIDGE TAPER ROLLER BEARING
PRE-ASSEMBLED UNIT. MAINTENANCE FREE-
OVERHAUL 1.2 MILLION KM.
Axle bearings
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CTRB
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BRAKE CALLIPER UNITS
AXLE MOUNTED DISC BRAKEINBUILT SLACK ADJUSTER IN BRAKE
CYLINDERSCALLIPER RATIO 1:2.17 FOR ALL
COACHES EXCEPT ACCN/SG & POWER CAR WHICH IS 1:2.48
35mm BRAKE PADS JURID 877/BECORIT984 KB &
SABWABCO.
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BRAKE CALLIPER UNIT
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SECONDARY SUSPENSION
NEST OF FLEXI-COIL SPRINGS INNER AND OUTER, RUBBER SPRING AND SECONDARY PAD
VERTICAL DAMPERSLATERAL DAMPERSYAW DAMPERSANTI-ROLL BARANCHOR LINKS
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SECONDARY SUSPENSION
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(With Bolster Lifted)Bogie Bolster
Nested Secondary
Spring Assembly
Yaw Damper
Sec. Vertical Damper
Cross Section
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(With Secondary Spring System Exploded)Bogie Bolster
Miner Pad
Spring Guide
Outer Spring
Inner Spring
Rubber Spring
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SECONDARY SUSPENSION
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Lateral Damper
Lateral Bumpstop
Longitudinal Bumpstop
(Bolster removed)
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Anti Roll Assly
Traction Lever Traction Center
Curve Roll
(X-section lifted)
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ANTI-ROLL BAR:
A TORSION BAR WITH TWO FORKS- BETWEEN BOGIE FRAME & BOLSTER,CONNECTED BY ROLL LINKS.
RESISTS ROLLING MOTION OF COACH.AS PER UIC515-1 TILTING CO-EFFICIENT
<0.4.
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ANTI-ROLL BAR:
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A
Anti-roll assly
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ANTI ROLL BAR
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BUFFER HEIGHT ADJUSTMENT
Shims at body/bogie connection.Shims NOT added/removed in Primary
and Secondary Suspension for wheel wear compensation or buffer height adjustment.
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BOGIE BODY CONNECTION:
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BODY BOGIE CONNECTION
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Principles of force transmission
Vertical forces: BODY-BOLSTER-MINER PAD-
SEC.SUSPENSION-BOGIE FRAME-PRIMARY SPRINGS/BALL JOINT CONTROL ARM-AXLES.
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Lateral forces:
BODY-BOLSTER-MINER PAD/SEC.SPRINGS/LATERAL BUMP STOP-BOGIE FRAME-BALL JOINT CONTROL ARM-AXLES.
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Traction and braking forces:
BODY-TRACTION CENTRE-TRACTION LEVER/LONGITUDINAL BUMP STOP-BOGIE FRAME-CONTROL ARM-AXLES.
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A
Traction Center
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CURVE NEGOTIATION:
CONTROL ARM (SGCI TO IS:1865) CONNECTING AXLE BEARING AND SIDE FRAME THROUGH ELASTIC CONNECTION.
FLEXIBILE GUIDANCE TO WHEELSET.
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SUSPENSIONS OF VARIANTS
THE COMMON SUSPENSION GROUPS ARE: GS,SCN,SLR CC,EC,CB,FAC/EOG,ACCW/EOG. ACCN/EOG,FAC/SG,ACCW/SG ACCN/SG,WLRRM SIDE 2. WLRRM SIDE 1. SLR UNDERSLUNG.
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Main Data:
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Speed limit
Cleared upto 160KMPH.upto 200KMPH with magnetic
brakes/sintered brake pads.
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RIDE INDEX
CHAIR CAR: VERTICAL 2.75 LATERAL 2.5
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SELF-GENERATING BOGIE WITH V-BELT:
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CARDAN SHAFT ARRGT. FOR 25KW ALTERNATOR
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CARDAN SHAFT ARRGT. FOR 25KW
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THANKYOU