Novel vibration-isolation noise-reduction flexible rail web covering part for modern tram

Abstract

The invention discloses a novel vibration-isolation noise-reduction flexible rail web covering part for a modern tram. The rail web covering part comprises an outer side flexible rail web covering part body and an inner side flexible rail web covering part body which are installed on a groove rail flangeway. The boundary dimensions of the outer side flexible rail web covering part body and the inner side flexible rail web covering part body are produced according to the dimension of a groove rail web and are set specific to the dimensions of an outer side rail web and an inner side rail web of a groove rail respectively, so that the attaching property is better, the attaching gap between the covering part and the groove rail web is reduced, and steel rail vibration can be transmitted to covering materials to the maximum degree. The outer side flexible rail web covering part body and the inner side flexible rail web covering part body are each provided with a separation type echo groove made of flexible damping materials, a supporting position paved with pavement caulking materials, a compression-resistant buffer strip made of flexible damping materials and a rail bottom covering material installation position made of flexible damping materials. The vibration-reduction and noise-reduction effects of the tram can be better improved, and the sitting comfort and stability of the tram can be effectively improved by combining the noise-reduction property of an echo area and the vibration-reduction property of the flexible damping materials.

Description

technical field [0001] The invention belongs to the technical field of rail vibration isolation and noise reduction, and specifically relates to a new type of vibration isolation and noise reduction flexible rail waist covering part for modern trams, which can effectively improve the vibration isolation and noise reduction effect. Background technique [0002] Modern tram is a means of transportation with less unit energy consumption, lower environmental pollution, and larger transportation capacity, which can effectively alleviate traffic problems. At present, many cities at home and abroad have opened tram lines, and more and more cities are actively incorporating modern trams into urban comprehensive transportation planning. The track structure of modern trams is composed of ballast bed, sleepers, rails, connecting parts, turnouts and other auxiliary equipment, which directly bear the load of trams and roads, and guide the operation of trams. Although trams are different...

AI Technical Summary

Problems solved by technology

Through experiments, it is found that it is more feasible to use vibration isolation and noise reduction track accessories. This method can be used not only in new lines, but also in existing lines to improve the effect of vibration isolation and noise reduction. Grinding rails and using heavy-duty rails The feasibility of improving the effect of vibration isolation and noise reduction for existing lines is very small

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