BOGIES AND SUSPENSION - South Central Railway

More documents

Recommendations

Info

CHAPTER 6 – BOGIES AND SUSPENSION The bogie consists of the following important parts :- WAGON MAINTENANCE MANUAL Page 18 of 121 a) Bogie frame including integral bolster, head-stock and trimmers b) Centre pivot arrangement c) Side Bearer arrangement d) Spring suspension arrangement e) Horn cheeks f) Roller bearing axle boxes g) Wheel sets h) Bogie Brake gear TRIMMER CROSS CHANNEL TRANSOM TIE BAR ATTACHMENT TO HEAD STOCK BRAKE BLOCK HANGER BRACKET DIAGONALS FIG. 6.2 : ISOMETRIC VIEW OF BOX TYPE WAGON BOGIE FRAME (B.G.) a) SIDE FRAME CENTRE PIVOT TRIMMER BOGIE SOLE PLATE SIDE BEARER BRIDLE BAR HORN GAP STIFFNER SPRING HANGER BRACKET BEARING SPRING HORN CHEEK BRIDLE BAR BOLTS BEARING SPRING HANGER BRACKET BOGIE HEAD STOCK This acts as a sole plate of the bogie frame. It runs parallel to the track, two side frames are joined together at the centres by bolster and by two head stocks at the ends. They maintain correct distance between the side frames as well is squareness and alignment of the bogie. On each side frame, two horn gaps are provided near the ends for fixing axle boxes. In the central position, control spring hanger bracket is fitted. Two inner and two outer cap pressings have been provided to strengthen the opening of the sole plate provided for the insertion of shackle pins. Spring stops have been welded on sole plate/top flange.
CHAPTER 6 – BOGIES AND SUSPENSION WAGON MAINTENANCE MANUAL Page 19 of 121 The sole plate is made of 8 mm thick plate. Other plates are also made of this material. The trolley frames were found to be having many welding defects. RDSO has issued detailed instruction vide No. R-7 for rectification of these welding defects on bogie frame. b) BOLSTER Bolster is welded at right angles to the two side frames. It alongwith head stock, keeps them at correct distance and maintain squareness and alignment of the bogie. It is a fabricated construction consisting of one top plate and one bottom plate and two vertical side plates. These are joined together to form a box section. In the centre where centre pivot is fitted, two stiffener plates have been provided at a distance of 360 mm. Perpendicular to the vertical side plates. In the ends, near the side bearers it is strengthened suitably. The top and bottom plates are 12 mm thick and side plates are 8 mm thick made out of plate. Other plates used in the assembly are mostly 8 mm and 10 mm thick. The top plate is bent in the centre and the side plate is at suitably forming a well in the centre. In the centre portion the bogie pivot is welded and on both ends the side bearers are welded. c) HEAD STOCK The head stocks are welded at right angles to the sole plates at both ends. Head stock and bolster together maintain the required distance between the two sole plates and also ensure squareness and alignment of the bogie frame. The head stock is a channel section of 200x75 x 7.5 mm. It is suitably joined with the sole plate at both the ends. Two diagonals (one each on RH and LH) are also attached with it. The safety loop brackets are also welded to it in the central portion. d) DIAGONALS To absorb draw and buffing force, the bogie has been strengthened by providing two diagonals between the head stock and the bolster on its either ends. Thus there are total of 4 diagonals, 2 left handed and 2 right handed. The diagonal is made of the channel section of 125x65x6 mm web. They are suitably notched at both ends to fit the head stock and transoms. The diagonal is inclined. Its height from the rail level is higher near the bolster and lower near the head stock.
Page 1 and 2: CHAPTER 6 - BOGIES AND SUSPENSION W
Page 3 and 4: CHAPTER 6 - BOGIES AND SUSPENSION T
Page 5 and 6: CHAPTER 6 - BOGIES AND SUSPENSION b
Page 7 and 8: CHAPTER 6 - BOGIES AND SUSPENSION f
Page 15 and 16: CHAPTER 6 - BOGIES AND SUSPENSION 5
Page 17: CHAPTER 6 - BOGIES AND SUSPENSION W
Page 25 and 26: CHAPTER 6 - BOGIES AND SUSPENSION o
Page 27 and 28: CHAPTER 6 - BOGIES AND SUSPENSION x
Page 39 and 40: CHAPTER 6 - BOGIES AND SUSPENSION h
Page 41 and 42: CHAPTER 6 - BOGIES AND SUSPENSION c
Page 43 and 44: CHAPTER 6 - BOGIES AND SUSPENSION f
Page 47 and 48: CHAPTER 6 - BOGIES AND SUSPENSION V
Page 53 and 54: CHAPTER 6 - BOGIES AND SUSPENSION d
Page 57 and 58: CHAPTER 6 - BOGIES AND SUSPENSION F
Page 59 and 60: CHAPTER 6 - BOGIES AND SUSPENSION d
Page 67 and 68: CHAPTER 6 - BOGIES AND SUSPENSION B
Page 69 and 70:
CHAPTER 6 - BOGIES AND SUSPENSION W
Page 71 and 72:
Page 73 and 74:
CHAPTER 6 - BOGIES AND SUSPENSION B
Page 75 and 76:
CHAPTER 6 - BOGIES AND SUSPENSION e
Page 77 and 78:
Page 79 and 80:
CHAPTER 6 - BOGIES AND SUSPENSION e
Page 81 and 82:
Page 83 and 84:
CHAPTER 6 - BOGIES AND SUSPENSION S
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
CHAPTER 6 - BOGIES AND SUSPENSION I
Page 93 and 94:
CHAPTER 6 - BOGIES AND SUSPENSION P
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
CHAPTER 6 - BOGIES AND SUSPENSION 1
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
45 0 45 0 45 0 6 6 6 20 mm. THICK F
Page 115 and 116:
CHAPTER 6 - BOGIES AND SUSPENSION G
Page 117 and 118:
Page 119 and 120:
Page 121:
CHAPTER 6 - BOGIES AND SUSPENSION S
show all

BOGIES AND SUSPENSION - South Central Railway

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?