Rail sound attenuation and shock absorption device

Abstract

The invention discloses a rail sound attenuation and shock absorption device which comprises a rail sound attenuation and shock absorption body. The rail sound attenuation and shock absorption body comprises a first arc segment, a first linear segment, a second arc segment, a second linear segment, a first transition segment and a second transition segment which are connected in sequence; the inner profiles of the first arc segment, the first linear segment, the second arc segment, the second linear segment, the first transition segment and the second transition segment of the rail sound attenuation and shock absorption body are sequentially matched with outer profiles of an arc segment A, a linear segment A, an arc segment B, a linear segment B, a transition segment A and a transition segment B of a rail, and the rail sound attenuation and shock absorption body wraps two ends for connecting the rail at the same time from the outer side. By means of the rail sound attenuation and shock absorption device, collision between train carwheel hoops and the rail is eliminated, noise cannot be generated, the service lives of the train carwheel hoops and the rail are greatly prolonged, the maintenance cost of a train and the rail is saved, the ride comfort of passengers is improved, and the safety of operation of the train is greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of rails, and in particular relates to a sound-absorbing and shock-absorbing device for rails. Background technique [0002] At present, the railway is connected by rails. Due to the physical properties of thermal expansion and contraction, there must be a gap of a certain width at the junction of the two rails. Due to the existence of this gap, when the train passes through the gap , the tires of the train will collide with the rail gap, because the tires of the train will drop a little when the train runs to the gap, so that the tires cannot reach the surface of the next rail, so that when the train travels from the previous rail to the next rail At the same time, the lowest point of the train's tire will collide with the next rail, producing a click sound, and the train's carriage will generate a large vibration with the collision, which not only produces noise, but also causes the collision between the r...

AI Technical Summary

Problems solved by technology

[0002] At present, the railway is connected by rails. Due to the physical properties of thermal expansion and contraction, there must be a gap of a certain width at the junction of the two rails. Due to the existence of this gap, when the train passes through the gap , the tires of the train will collide with the rail gap, because the tires of the train will drop a little when the train runs to the gap, so that the tires cannot reach the surface of the next rail, so that when the train travels from the previous rail to the next rail At the same time, the lowest point of the train's tire will collide with the next rail, producing a click sound, and the train's carriage will generate a large vibration with the collision, which not only produces noise, but also causes the collision between the rail and the train tire Wear and tear, reducing the service life of rails and train tires, increasing the maintenance costs of trains and rails

In addition, when the train tires collide with the rails, there will be resistance, which will affect the running speed of the train, and there is no support for the train tires in the gaps, so the train is prone to derailment accidents

At the same time, with the collision of the train, a large vibration will be generated, which will bring a sense of bumps to the passengers in the car and affect the comfort of the passengers in the car.

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