Vibration and noise reduction device for track

• Main Authors: ZHANG LIANG, GUO WENJIE, HONG XIAN, HU RUIQI, LUO WENJUN
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• Subjects: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS; PERMANENT WAY; PERMANENT-WAY TOOLS

The utility model discloses a rail vibration and noise reduction device which comprises a steel rail vibration reduction unit installed between two adjacent fasteners on a rail plate and a rail plate vibration isolation unit installed on a base, and the steel rail vibration reduction unit is composed of a curved bar and a movable mass block. The two ends of the curved bar are rotationally connected to the rail web of the steel rail and the movable mass block respectively, and the inner side of the curved bar faces the steel rail. The steel rail vibration absorber has the advantages that the actual displacement of a controlled point is amplified by the steel rail vibration reduction unit through an amplitude amplification mechanism, so that the equivalent mass, rigidity and damping of the steel rail vibration absorber are synchronously enhanced, and the vibration absorption capacity is improved; and the track plate vibration isolation unit adopts a lever type displacement amplification mechanism to enhance the