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Railway turnout and guard rail function overview

Guard Rail for Railway Turnout

There are many types of railway turnouts developed in rail industry. Although some of them are small, they do play an important role. It has made great contributions to the safety of our railway lines. One of them is railway turnouts. There are many products in the turnout fittings, and different products performs different functions.

Ordinary Single Open Railway Turnout

Railway Turnout for UIC 60 Steel Rail

It is common to see a single open railway turnout/railway switch on railway track. It consists of three units: switch, connecting part, fork and guard rail. The railway switch includes a basic rail, a tip rail, and a switch mechanism. When the train is to be transferred from the A-share lane to the B-share lane, the turning mechanism is operated to move the tip rail. The tip rail 1 is closely attached to the basic rail 1, and the pointed rail 2 is separated from the basic rail 2, thus opening the B-track.

The A-share lane is closed and the train enters the connecting section and transitions along the guide rail to the frog and guard rail unit. This unit consists of a fixed frog center, a wing rail and a guard rail to protect the wheel from the intersection of the two trajectories. In addition to the single turnout, there are double turnouts; the cross include a straight cross and a diamond cross; the combination of the connection and the cross has a crossover.

Role of Guard Rail

So why the use of guard rail is necessary? It is known that there is harmful space in the turnout, the harmful space is the gap between the narrowest part of the two wing rails and the tip of the split heart when the wheel passes through the fork. Harmful spaces can cause the wheels to derail, so guardrails are necessary because they control and guide the wheels on the right path. The composition of the railway switch is indispensable, and the switch has become a very important part of the railway.

Turnout accessories are also a large classification, playing an irreplaceable role in our railway industry. Understanding the various functions and uses of railway parts is the first step of making them play its normal functions in positions.

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