FIAT BOGIE
SUB-SYSTEMS
BOGIE FRAME Y-FRA RAME ME Y-F
-STEEL -STE EL SHEE SHEETS TS(S (Stt-52 52)) TWO SIDE FRAMES CONNECTED BY TWO CROSS BEA BEAMS -SUPPORT ORT BRA BRAKE UNITS. BOGIE FRAME ON THE PRIMARY SPRINGS AND SUPPORTS VEHICLE BOD BODY THROUGH BOL BOLSTER. BOLSTER-BOGIE FRAME THROUGH SECONDARY SUSPENSION.
BOGIE FRAME
BOGIE FRAME
(Bogie f rame rame lifted)
Primary S pring assly
Primary Damper
MATERIAL PROPERTIES: S355J2G3; EN10025 UT S IN M pa 4 9 0- 6 30 YIELD 3 55
GS20Mn5V; DINl:17182 500± ± 650 360
SG400/18; IS:1865 40 0 25 0
SG400/15; IS:1865 400 250
22
24
18
15
27J AT -20
70 J
--
--
STRENGTH M pa ELONGAT I ON %AGE IM P AC T
0
C
CH EMICAL %AGE:
C
0.23, M n --- C 0.17 to 1.7, Si 0.6, S 0.23, Si 0.60, &P 0.045 M n 1.00 to 1.50, Se 0.020, Pe0.015, Cr e 0.30, Mo e 0.15, Ni e0.40
- --
Primary suspension Four nos each per bogie -nested coil springs, primary vertical dampers, control arm, elastic joints-connecting the bearing on wheelset to bogie ogie fr fram ame. e. Flexible guidance.
(Primary exploded)
Rubber Pad er Pad Outer S pring
S pring Guide
Inner S pring Lower S pring Guide
Bump Sto p
(Wheel set with Primary suspension) Contr ol Arm
Bearing Assly with
ear thing eq./speed sensor
(Wheel set with Primary springs removed)
Primary Damper
C
Contr ol Arm
Wheelset
Two brake disks (4), diameter 640 mm and width 110 mm. Two wheel discs of dia 915 (New), 845 (worn).
Wheel & Axle Assly
Brake Disc
DIMENSIONS
OF
WHEEL
SET:
Wheel
Disc:
Re-profiling and balancing: Wheel
DYNAMIC BALANCING 320RPM LESS THAT/EQUAL TO 50GM.M GLUE THE NEEDED WEIGHTS.
DETAIL
OF ADDED
WEIGHTS:
Axle bearings CARTRIDGE TAPER
ROLLER BEARING PRE-ASSEMBLED UNIT. MAINTENANCE FREE-
OVERHAUL 1.2 MILLION KM.
CTRB
BRAKE CALLIPER UNITS
AXLE
MOUNTED DISC BRAKE INBUILT SLACK ADJUSTER IN BRAKE CYLINDERS CALLIPER 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.
BRAKE CALLIPER U NIT
SECONDARY SUSPENSION
NEST OF FLEXI-COIL SPRINGS INNER AND OUTER, RUBBER SPRING AND SECONDARY PAD VERTICAL DAMPERS LATERAL DAMPERS YAW DAMPERS ANTI-ROLL BAR ANCHOR LINKS
SECONDAR Y SUSPENSION
(Wiith Bolster Lifted) (W Bogie Bolster Sec. Ver tical Damper
Cr oss Section
Nested Secondary S pring Assem bly
Yaw Damper
(With Secondary S pring System
Exploded) Bogie Bolster
Miner Pad iner Pad S pring Guide
Outer S pring
Inner S pring
Rubber S pring
SECONDARY SUSPENSION
(Bolster er rem removed) Lateral Damper
Lateral Bumpsto p
Longitudinal Bumpsto p
(X-section lifted) Traction Lever
Traction Center
Anti Roll Assly
Cur ve Roll
ANTI-ROLL BAR: A TORSION BAR WITH TWO FORKSBETWEEN BOGIE FRAME & BOLSTER,CON CONNECTED TED BY ROLL LINKS. RESISTS ROLLING MOTION OF COACH. C O-EFFICIENT AS PER UIC515-1 TILTING CO-EFFICIENT <0.4.
ANTI-ROLL BAR:
A
Anti-r oll
assly
ANTI ROLL BAR
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.
BOGIE BODY CONNECTION:
BODY BOGIE CONNECTION
Principles of force transmission
Vertical
forces: BODY-BOLSTER-MINER BODY-BOLSTER-MINER PADSEC.SUSPENSION-BOGIE SEC.SUSPENSION-BOGIE FRAME-PRIMARY SPRINGS/BALL JOINT CONTROL ARM-AXLES.
Lateral forces:
BODY-BOLSTER-MINER PAD/SEC.SPRINGS/LATERAL PAD/SEC.SPRINGS/LATERAL BUMP STOPBOGIE FRAME-BALL JOINT CONTROL ARM AXLES.
Traction and braking forc es:
BODY-TRACTION CENTRE-TRACTION LEVER/LONGITUDIN AL BUMP STOPBOGIE FRAMECONTROL ARM AXLES.
A
Traction Center
CURVE NEGOTIATION:
CONTROL ARM (SGCI TO IS:1865) CONNECTING AXLE BEARING AND SIDE FRAME THROUGH ELASTIC CONNECTI CTION. FLEXIBILE GUIDANCE TO WHEELSET SET.
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.
Main
Data:
Speed limit
Cleared upto 160KMPH. upto 200KMPH with magnetic brakes/sintered brake pads.
RIDE INDEX
CHAIR CAR: VERTICAL
2.75 LATERAL 2.5
SELF-GENERATING BOGIE WITH V-BELT:
CARDAN SHAFT ARRGT. FOR 25KW ALTERNATOR
CARDAN SHAFT ARRGT. FOR 25K W
THANK YOU
