Train wheel and rail turnout device capable of reducing wheel-rail impact influence

Abstract

The invention discloses a train wheel and rail turnout device capable of reducing wheel-rail impact influence and relates to integral-cast frog and a guardrail. The frog comprises wing rails, a point rail and frog bottom plates formed between the wing rails and between the wing rails and the point rail. The guardrail is provided with a guardrail bottom plate and is integrally connected with an outer steel rail. The frog bottom plates and the guardrail bottom plate are thinnest at the corresponding positions of a frog toe end and a frog heel end, the thickness of the frog bottom plates and the guardrail bottom plate gradually increases towards the middle, the even thickness h of the frog bottom plates and the guardrail bottom plate is kept in a range not smaller than a harmful space, and h is the difference between the height of the frog or the steel rail and the height of a wheel flange plus 1-2mm. The train wheel and rail turnout device has the advantages that fierce impact of wheels on the frog due to the existence of the harmful space is avoided effectively, steel wheel and frog damage is reduced, steel wheel and frog maintenance is reduced, and the service life of the steel wheels and the frog are prolonged; the fierce impact of the steel wheels on the frog is eliminated, wheel vibration and noise are reduced, riding comfortableness is increased, and train operation energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of train tracks, and in particular relates to a train wheel and track turnout device which reduces the impact of wheel and rail impact. Background technique [0002] A turnout is a device that connects or crosses two or more tracks on a plane. However, in the frog part, when a fixed frog is used, there is a certain length of harmful space between the narrowest point between the two wing rails (called the throat) and the actual tip wheel. When the wheel set passes, the steel wheel is here severe impact on the rail. However, when a movable frog frog is used, although the harmful space of the frog can be eliminated, the movable frog requires a rail control system, and its construction cost, operation cost and maintenance cost are extremely high. The application of rail frogs is limited, and now it is mainly used in high-speed railways in China. For fixed frogs, there are mainly two forms, one is rail combine...

AI Technical Summary

Problems solved by technology

However, both forms of fixed frogs present a detrimental space5 where the rim cannot come into contact with the spacer iron or monolithic floor at its base

Therefore, when the wheel pair passes through the harmful space 5, the wheel 10 will have a severe impact on the rail, thereby causing damage to the wheel 10 and the frog. Frog service life

At the same time, the severe impact of the steel wheel on the frog will cause vibration and noise on the wheel and rail, which will affect the comfort of passengers and increase the energy consumption of the train.

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