ICF BOGIE PDF
Bogie Bolster Suspension: The bolster rests on the bolster coil .. 2 nos. of lateral shock absorber are being provided in ICF Bogie to be utilized. Roll and it’s Prevention. ❑ Effect of roll on human body. ❖ Type of roll: UCR and LCR. ❑ Prevention not available in ICF bogie. ❑ Anti-Roll bar mechanism in LHB . ICF Bogie – Free download as Powerpoint Presentation .ppt), PDF File .pdf), Text File .txt) or view presentation slides online.
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ICF coaches use two types of brake beams.
Rail Maniac: ICF BOGIE ( DETAILED )
It couples to the bogie frame at each end using the secondary suspension system typically coil springs and spring plank. The wheel set assembly consists of two pairs of wheels and axle.
As the top portion of the lower spring seat is not sealed and only covered with the help of iccf protective tube also called the dashpot cover, the rising oil has a tendency to shoot above the top rim of the lower spring seat and spill out.
Both the ends of the anchor link act as a hinge and allow movement of the bogie bolster when the coach is moving on a curved track.
After pressing the collar, a rear cover for the axle box is fitted. The cylindrical housings have silent blocks placed in them. Moreover, a small brake cylinder is adequate for braking purpose. The collar ensures that the bearing does not move towards the center of the axle.
Based on load carrying capacity per axle, the conventional bogie frames are grouped into two types. Even the old type bogies are being converted into BMBC coaches.
The axle box guide displaces the oil in the lower spring seat and pushes it upwards. The axle box guide, which is welded to the bogie frame has a polymer washer homopolymer acetal guide bush fixed at the head. Its design provides that when a vertical vibration occurs during the movement of the railway coach, the axle box guide moves down.
It is attached to the bogie frame on the outside with the help of a steel hanger. The bogie bolster is not bolted or welded anywhere to the bogie frame. But now the practices has been discontinued and an induction furnace is used to heat them before fitting on the axle. The primary spring sits on the NFTC ring.
The bolster spring sits on the rubber washer. The retaining ring ensures that the rear cover assembly is secured tightly between the axle collar and the retaining ring and stays at one place. Traditionally, rubber washers have been used at the seating arrangement of the primary springs of the axle box housing in the ICF design passenger jcf on the Indian Railways. The cylinder piston arrangement of the dashpot, i.
The equalizing stay rod is also hinged on both the ends with the lower spring beam as well as the bogie bolster with the help of brackets welded to the bogie bolster.
It provides the cushioning effect. Another bbogie was the load deflection characteristics of the washers. The dashpot arrangement consists of a cylinder lower iff seat and the piston axle box guide. It is attached to the bogie frame through the anchor link. A bogie bolster is the central section of the bogie that carries the entire weight of a coach’s under frame.
ICF coaches – Wikipedia
The problem of spilling of oil from the dashpot is as old as the design itself. The material of the brake block is non-asbestos and non-metallic in nature.
The guide cap is fixed with the help of a steel circlip. Various bogid of levers are used on the ICF coaches. Axle box springs are placed on the lower spring seat placed on the axle box wing of the axle box housing assembly. The protective tube has a circular ring over it called the dust shield which prevents the ingress of the dust in the cylinder piston arrangement of the dashpot.
The front cover is bolted by using torque wrench.
This arrangement is same for all the four top corners of the hangers. A woolen felt ring is placed in another groove. It involves 40 meters app. These levers are used to connect the brake beam with the piston of the brake cylinder.
The sub assemblies are fabricated from flanges, webs, channels jcf Ribs by welding process. November Learn how and when to remove this template message.
It is a double Y-shaped member fabricated using steel tubes and sheets. A polymer packing ring and a guide ring is attached with the Acetal guide bush. A ic acetyle washer is placed on bogid lower end of the axle box guide. Please help improve this article by adding citations to reliable sources. The rubber washer is used directly on the axle box seating area. Earlier, the collar and the bearings were heated in an oil bath.
The maximum variation in the wheels on the same axle is permitted up to 0. Before fitting the icd bearing, an axle collar is press fitted. A hanger block is placed below the BSS pin.