Locking pin having anti-pumping device

Abstract

The upper locking pin with hold down mechanism includes upper pin body with connecting hole, front bevel front end surface, upper clamping edge, and lower installation hole for the pin to be installed in; and upper pin rod with heart-shaped hole for connecting pin shaft. The present invention features that the upper pin body is provided with slideway and the slideway has opened front end and connected hold down iron block. The present invention has the advantages of simple structure and reliable hold down effect in preventing the automatic separation of coupler.

Description

technical field [0001] The invention belongs to coupler parts used for connecting railway vehicles, in particular to an upper lock pin provided with an anti-jump mechanism. Background technique [0002] At present, my country's railway vehicles are connected by couplers. With the implementation of railway speed-up, heavy-duty, and long-distance road operation measures, affected by operating speed, line status, locomotive traction conditions, coupler status, and vehicle loading status, coupler automatic separation failures occur from time to time during operation, especially It has been increasing in recent years. The main characteristics of coupler automatic separation faults are: most of the marshalling positions are in the middle and rear of the train, electric locomotives are mainly responsible for traction, and most of them occur at the time of speed regulation at ramps or slope change points, and there is a time limit before the speed increase. The automatic separatio...

AI Technical Summary

Problems solved by technology

Once there is an acceleration in the direction of the knuckle tongue, a reverse eccentric force will be generated, and when this force is sufficient to overcome the eccentric force of the upper lock pin, the top of the upper lock pin rod can be separated from the anti-jump platform of the hook cavity, resulting in anti-jump fail

Once the anti-jumping fails, the worn couplers in each part are under the heavy-duty traction state, the hook lock iron is strongly squeezed, and the upward component force is generated instantaneously during operation, which is enough to make the coupler lock iron and the upper lock pin jump up to the unlocking position , resulting in a split hook

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