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BLC Wagon

 

BLC

 

BOGIE CONTAINER FLAT WAGON TYPE BLCA & BLCB  

 BASIC CHARACTERISTICS AND DIMENSIONS

The Bogie Container Flat Wagons have the following basic characteristics/leading dimensions.

S.No.

Description

‘A’ Car

‘B’ Car

1.

Track Gauge

1676 mm

1676 mm

2.

Estimated Tara Weight

19.10 t

18.00 t

3.

Payload

61.00 t

61.00 t

4.

Gross Weight

80.10 t

79.00 t

5.

Length over Headstock

13625 mm

12212 mm

6.

Width over sole bar at centre line of wagon

2100 mm

2100 mm

7.

Distance between Bogie Centres

9675 mm

8812 mm

8.

Floor height

1009 mm

1009 mm

9.

Height of Centre Buffer Coupler from Rail Level

1105 mm

-

10.

Height of drawbar system from Rail Level

845 mm

845 mm

11.

Wheel base

2000 mm

2000 mm

12.

Diameter f Wheel (New)/(Fully Wom)

840/780 mm

840/780 mm


Salient features at a glance.

Bogie: High speed three piece cast steel bogie.

Floor Height: 1009 mm which is 266 mm less than IRS wagon height.

Axle Load: 20.32 tonne.

Carrying Capacity: 61.0 tonne (two 20’-O” or one 40’O” ISO container on each wagon).

Maximum operating speed: 100 kmph.

Unit:.Each unit consists of 5 wagons, two “A” Cars at the ends and three “B’ Cars in the middle.

Rake: Rake consists of 45 wagons in the form of 9units. Length of each unit — 69 meters approximately.

Coupling: Outer ends of TMA Cars are fitted with standard Centre Buffer Couplers (CBC)                                  inner end of A Car and both ends of B• car are fitted with slack less drawbar.

Brake Beam: Bogie is fitted with sliding type brake beam and brakehead is the integral part of                                  brake beam. Compositionbrake blocks are fitted.

Wheel: Forged wheels and axles are used. Wheel dia New-840mm. Worn out-780 mm.

Air Brake System: It consists of

  • Single pipe graduated release

  • Distributor valve fitted with empty load function

  • Automatic slack adjuster

  • Automatic load sensing device

  • Brake cylinder pressure under tare 2.2 kg/cm2 and under loaded 3.8 kg/cm2

  • Control reservoir charged to 5 kg/cm2

  • Auxiliary reservoir charged to 5 kg/cm2

  • Initial charging of brake pipe at 5 kg/cm2.

Automatic Load Sensing Device (LSD): Two stage empty/ load braking is controlled by two nos. of change over valves type VTA fitted on each bogie bolster.

Automatic Twist Locks: Automatic twist locks are provided on the wagon for securing containers for quick loading and unloading.

Bolster Suspension: Each group of helical spring consists of 7 outer springs, 6 inner springs and 2 snubber springs.

Spring Loaded Side Bearer Arrangements: It consists of two helical springs on each side bearer which bear 90% tare load.

SL No.

Features

BLC

BFKN

BOXK/BOXKH

01

Wagon Unit

Consist of wagon 2 nos. A-Car = 3 nos. B-Car

Single wagon

Single wagon

02

Platform hight from R.L.

1009 mm

1269 mm

1275 mm

03

Wagon length over head stock

A-Car 13625 mm

B-Car 12212 mm

13716 mm

12800 mm

04

Tare

A-Car 19.10 t

B-Car 18.10 t

20.5 t

 

19.5 t

05

Payload

61 t

61 t

48/60 t

06

Wheel Dia

840 mm

1000 mm

1000 mm

07

Type of bearing

Tapered two row cartridge roller bearing

Tapered two row cartridge roller bearing

Cylindrical roller bearing

08

Speed

100 KMPH

75 KMPH

75 KMPH

09

Coupling

CBC & Slack less Drawbar

CBC

CBC

10

Twist lock

Automatic

Manual

Gide bracket & Gide block

11

Empty/Load divice

Two stage automatic pneumatically operated

Manually leverage

Manually leverage

12

Side bearer arrangement

Spring loaded side bearer arrangement

Pubber bondad

Guide steel liner

13

Suspension

Two stage suspension

Single stage suspension

Single stage suspension

14

Rake carrying capacity/Rake length

45 wagons 90 TEUs 618 Mtrs approx

40 wagons 80 TEUs 587 Mtrs

42 wagons 84 TEUs 576 Mtrs

15

Brake system

Air brake

Air brake

Vaccum brake

16

Brake cylinder pressure

3.8 kg/cm.sq loaded

2.2 kg/cm.sq empty

-

-

 

Comparison of CASNUB-22-NLB and Container Bogie Type LCCF2O(C) with

respect to similar and dissimilar features.

S.N.DescriptionCASNUB-22-NLBContainer Bogle Type LCCF-20(C) - 96
1Centre Pivot Height  from rail level     932 mm715mm
2Maximum height of  side frame fromrail   level                     

851 mm

786mm
3Bottom of side frame from rail level  165mm149mm
4Height of side bearer top from rail  level                     921 mm 772mm
5Wheel dia    1000-925 mm 401780 mm
6Side frame design   Cast steel design suitable for narrow  jaw adapterCast steel design suitable for wide jaw adapter
7Bolster Design  Cast steel design- separate type centre pivot straight bottom.  Cast steel design integral fiat type centre pivot
8Design of centre pivots Separate pivots. IRS spherical type, assembled by rivets Bottom pivot integral with bolster, flat type top pivot separate bolted to underframe.   
9Centre pivot liner   No liner is provided Manganese steel liners conforming to1RS-R-65-78 are provided at bottom and vertical
10Side bearer Rubber type in a cast steel housing.   Friction type with coil springs in a cast steel housing.
11Load bearing coil  12 outer and 8 springs inner Material                                            IS:3195 60 Si7 l4outer and 12 inner springs. Material IS:3195 Gr.60S17
12Snubber springs  4 Snubber springs Material lS:3195 Gr. 60 S17                                              4 Snubber spring Material 15:31 95 Gr50 CrMoV4
13Brake shoeConventional brake shoe Material cast Iron.Non-metallic brake shoe.
14AdaptersNarrow adapter. Jaw Wide jaw adapter.

 

SIMILARITY

  • Wheel base               :            2000 mm                        

  • Journal centres          :           2260 mm                                                

  • Spring plank                :           Pressed plate design from 12 mm plate

  • Centre pivot bolt        :          Similar design.

  • Wedge   design.:           Similar                                                                               

  • Cartridge bearing        :          Standard AAR Cartridge bearing tyoperoller bearing Class-E.                                                                        

  • Side frame key            :          Similar design.

  • Bogie brake gear         :          Similar design in case of bogies with CBC end but anextra equalizing lever has been provided in U-shape toconnect under frame bracket with 2 nos. Of end pull rods.

  • Elastomeric pads        :        Similar.

 

 




Source : Eastern Railway CMS Team Last Reviewed on: 30-09-2011  


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