Isolator for double regidity rail
A dual-stiffness and vibration isolator technology, applied in the direction of tracks, roads, fixed rails, etc., can solve the problems of single vibration-damping stiffness, poor impact resistance, and poor vibration-damping effect, and achieves overcoming vibration-damping stiffness and impact resistance. Poor performance, good anti-fatigue performance, and the effect of taking into account the anti-fatigue performance
Active Publication Date: 2008-11-05
BEIJING URBAN CONSTR DESIGN & DEV GRP CO
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Problems solved by technology
[0003] The purpose of the present invention is to provide a dual-stiffness track vibration isolator to solve the technical problems of reducing cost, reducing the dynamic-static ratio, enhancing fatigue resistance, and anti-aging; At the same time, through the selection of the anti-fatigue aging system of the rubber ring material, the problem that the stiffness of the track damper undergoes a large change under the action of long-term alternating stress and cause failure is solved; at the same time, the problem that the traditional track damper only has Technical problems of single damping stiffness and poor impact resistance
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[0030] For the first embodiment of the present invention see figure 1 , 2 , 3, 6, the track damper is composed of three parts, the rail plate 2, the rubber ring 3 and the base 4, and the rubber ring 3, the rail plate 2, and the base 4 are formed into a whole through high-temperature and high-pressure vulcanization of the adhesive.
[0031] The rail bearing plate 2 is made of cast iron material, and its lower half is an inverted cone body with an elliptical cross-section. The inclination angle between the generatrix of the inverted cone body and the horizontal plane is 60-70 degrees; It is a bearing platform 6 carrying a track 7. There is a lug 5 at both ends of the long axis direction of the bearing platform, and a transparent pin hole 1 is processed on each lug, which is used to install the torsion spring spring strip for fixing the rail. 8. The track 7 and the rail support plate 2 are fixed by the torsion spring strip 8.
[0032] The elastic body is a rubber ring 3 with an...
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Abstract
The invention relates to a double-rigidity railway vibration isolator. The lower part of the bearing rail board is back taper cycle body. And the middle of its upper part is set bearing platform. Each of major axis direction two ends of the bearing platform is set snug. The snug is set pinhole. Gum ring and the bearing rail board are formed a whole. Base and the bearing rail board are also the same. The invention overcomes the defect of the traditional railway vibration isolator that it has only single vibration reduction rigidity and bad shock resistance. It can be extensively applied to city rail traffic system such as subway, light rail, and so on, to restrain vibration and noise pollution around line.
Description
(1) Technical field [0001] The invention relates to elastic vibration isolation equipment and materials for rails. (2) Background technology [0002] During the running of the existing rail transit system, shock waves and noises are generated due to the collision between the wheels and the rails. The shock wave will propagate in the tracks, tunnels, soil layers and ground buildings, and generate corresponding vibrations, which will have a very adverse impact on the surrounding buildings and residents' lives. In order to solve this problem, one of the methods commonly used at home and abroad is to use rubber floating slabs or steel spring floating slabs, that is, to float the concrete track bed slab with a certain mass and rigidity on the steel spring vibration isolator to form a mass - Spring vibration isolation system. The advantage of this method is that the vibration reduction effect is better, but the cost is expensive, the construction and maintenance costs are high, ...
Claims
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IPC IPC(8): E01B9/38E01B9/68C08L7/00
Inventor 任静吴建忠郑瑞武蔡斌孙社营
Owner BEIJING URBAN CONSTR DESIGN & DEV GRP CO