Bogie under frame

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Presentation on fabrication of Bogie under frame used in worldwide Locomotive...:)

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Bogie under frame

  1. 1. DESIGN FEATURES:
  2. 2. FIAT BOGIE SUB-SYSTEMS
  3. 3. 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.
  4. 4. BOGIE FRAME
  5. 5. BOGIE FRAME
  6. 6. (Bogie frame lifted) Primary Spring assly Primary Damper
  7. 7. MATERIAL PROPERTIES: UTS IN Mpa YIELD STRENGTH Mpa ELONGATI ON %AGE IMPACT CHEMICAL %AGE: S355J2G3; EN10025 490-630 355 GS20Mn5V; DINl:17182 500 – 650 360 SG400/18; IS:1865 400 250 SG400/15; IS:1865 400 250 22 24 18 15 27J AT -20 0 C C 0.23, Mn 1.7, Si 0.6, S &P 0.045 70 J -- -- C 0.17 to ---0.23, Si 0.60, Mn 1.00 to 1.50, S≤ 0.020, P≤ 0.015, Cr ≤ 0.30, Mo ≤ 0.15, Ni 0.40 ≤ ---
  8. 8. Primary suspension  Four nos each per bogie -nested coil springs, primary vertical dampers, control arm, elastic joints-connecting the bearing on wheelset to bogie frame.  Flexible guidance. 
  9. 9. (Primary exploded) Rubber Pad Outer Spring Spring Guide Inner Spring Lower Spring Guide Bump Stop
  10. 10. (Wheel set with Primary suspension) Control Arm Bearing Assly with earthing eq./speed sensor
  11. 11. (Wheel set with Primary springs removed) Primary Damper C Control Arm
  12. 12. WHEELSET Two brake disks (4), diameter 640 mm and width 110 mm.  Two wheel discs of dia 915 (New), 845 (worn). 
  13. 13. Wheel & Axle Assly Brake Disc
  14. 14. DIMENSIONS OF WHEEL SET:
  15. 15. Wheel Disc:
  16. 16. WHEEL RE-PROFILING AND BALANCING: DYNAMIC BALANCING 320RPM  LESS THAT/EQUAL TO 50GM.M  GLUE THE NEEDED WEIGHTS. 
  17. 17. DETAIL OF ADDED WEIGHTS:
  18. 18. AXLE BEARINGS  CARTRIDGE TAPER ROLLER BEARING  PRE-ASSEMBLED UNIT.  MAINTENANCE FREEOVERHAUL 1.2 MILLION KM.
  19. 19. CTRB
  20. 20. 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.
  21. 21. BRAKE CALLIPER UNIT
  22. 22. 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 
  23. 23. SECONDARY SUSPENSION
  24. 24. (With Bolster Lifted) Sec. Vertical Damper Bogie Bolster Cross Section Nested Secondary Spring Assembly Yaw Damper
  25. 25. (With Secondary Spring System Exploded) Bogie Bolster Miner Pad Spring Guide Outer Spring Inner Spring Rubber Spring
  26. 26. SECONDARY SUSPENSION
  27. 27. (Bolster removed) Lateral Damper Lateral Bumpstop Longitudinal Bumpstop
  28. 28. (X-section lifted) Traction Lever Traction Center Anti Roll Assly Curve Roll
  29. 29. 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. 
  30. 30. ANTI-ROLL BAR:
  31. 31. A Anti-roll assly
  32. 32. ANTI ROLL BAR
  33. 33. 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. 
  34. 34. BOGIE BODY CONNECTION:
  35. 35. BODY BOGIE CONNECTION
  36. 36. PRINCIPLES OF FORCE TRANSMISSION Vertical forces:  BODY-BOLSTER-MINER PAD-SEC.SUSPENSIONBOGIE FRAME-PRIMARY SPRINGS/BALL JOINT CONTROL ARM-AXLES. 
  37. 37. LATERAL FORCES:  BODY-BOLSTER-MINER PAD/SEC.SPRINGS/LATERAL BUMP STOP-BOGIE FRAME-BALL JOINT CONTROL ARM-AXLES.
  38. 38. TRACTION AND BRAKING FORCES:  BODY-TRACTION CENTRE-TRACTION LEVER/LONGITUDINAL BUMP STOP-BOGIE FRAME-CONTROL ARMAXLES.
  39. 39. A Traction Center
  40. 40. CURVE NEGOTIATION: CONTROL ARM (SGCI TO IS:1865) CONNECTING AXLE BEARING AND SIDE FRAME THROUGH ELASTIC CONNECTION.  FLEXIBILE GUIDANCE TO WHEELSET. 
  41. 41. 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  WLRRM SIDE 2. SIDE 1.  SLR UNDERSLUNG.
  42. 42. MAIN DATA:
  43. 43. SPEED LIMIT Cleared upto 160KMPH.  upto 200KMPH with magnetic brakes/sintered brake pads. 
  44. 44. RIDE INDEX  CHAIR CAR:  VERTICAL 2.75  LATERAL 2.5
  45. 45. SELF-GENERATING BOGIE WITH VBELT:
  46. 46. CARDAN SHAFT ARRGT. FOR 25KW ALTERNATOR
  47. 47. THANK YOU

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