Narrow gauge bogie

Abstract

The invention belongs to the field of railroad bogies and particularly relates to a narrow gauge bogie. To meet running requirements of narrow gauge railway lines, the narrow gauge bogie includes a front wheel set, a back wheel set, side frames, bolsters, brake devices, bottom center plates and side bearings. Wearing plates are arranged on the splayed surfaces of the bolsters and on vertical columns of the side frames, and the wearing plates located on the vertical columns of the side frames are fastened with the vertical columns of the side frames through folding head bolts. Clamping-in type sliding chute wearing plates are installed in sliding chutes of the side frames. The bolsters and the bottom center plates are of an integrated casting structure, and heat disk wearing plates are installed in the bottom center plates. Spring vibration dampers are composed of wedges, the wearing plates on the vertical columns of the side frames, bevel wearing plates and double damper springs. The wedges adopt combined wedges formed by wedge bodies and main friction plates. The side bearings adopt double-acting constant-contact elastic side bearings, and the brake devices adopt lower pull rods or middle pull rods structures. The narrow gauge bogie is simple in structure, easy to produce and convenient to overhaul, and can be applied to various wagons with various narrow gauges, the axle load smaller than or equal to 25t and the design speed as 100km/h.

Description

technical field [0001] The invention belongs to the field of railway bogies, in particular to a narrow gauge bogie. Background technique [0002] The straight-line gauge of railways in various countries in the world is called standard gauge; the gauge greater than 1435 mm is called wide gauge, such as 1676 mm, 1524 mm, 1520mm, etc.; the gauge less than 1435 mm is called narrow gauge, such as 1067 mm, 1000mm, 762mm, 600mm, etc. Because there are narrow-gauge railway lines in my country, Japan, Australia and other countries, the existing wide-gauge bogies cannot be applied to narrow-gauge technology in terms of steering load-bearing structure and vibration reduction design due to their wide gauge. Due to the large carrying capacity and fast running speed of railway vehicles, it has always been a problem to be solved in the industry to design a bogie with integrated technology that is more suitable for narrow gauge operation requirements. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

Because there are narrow-gauge railway lines in my country, Japan, Australia and other countries, the existing wide-gauge bogies cannot be applied to narrow-gauge technology in terms of steering load-bearing structure and vibration reduction design due to their wide gauge. Due to the technical characteristics of railway vehicles such as large carrying capacity and fast running speed, it has always been a problem to be solved in the industry to design a bogie with comprehensive technology that is more suitable for narrow gauge operation requirements.

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