Rail fixing seat for rail transit

Abstract

The invention discloses a rail fixing seat for rail transit. The rail fixing seat comprises a rail base, rail fastener bases and a positioning plate; the rail fastener bases are mounted on the two sides of the rail base; the positioning plate is mounted between the two rail fastener bases; a rail fastener is included, the rail fastener base is provided with the rail fastener, the rail fastener isprovided with the extending pressing part, the pressing part is pressed on the protruding part at the lower end of the rail, the positioning plate is used for fixedly clamping the rail, and then the lower end of the rail is fixed through the rail fastener, so that the rail is fixed more stably, and the problem that a sleeper is prone to displacement is solved. Meanwhile, the rail fastener is in full contact with the upper end face of the bottom of the rail, so that the stabilizing effect is better, and the defect that the rail fastener is not in full contact with the rail is overcome. the railfixing device is further arranged and used for fastening the middle of the rail, the stabilizing effect on the rail is further enhanced, and the rail can bear larger loads.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to a rail fixing seat for rail transportation. Background technique [0002] With the development of the economy and the deepening of the urbanization process, the traffic pressure on ordinary roads in many large and medium-sized cities is increasing. Therefore, rail transit with high traffic efficiency (such as subways and urban railways) is deployed more and more widely. Effectively alleviate the traffic pressure on ordinary roads. As the channel for the train to run, whether the rail can be fixed on the rail base is related to the safe operation of the train. The rail fastener is an important structure in direct contact with the rail. If the contact between the two is not close enough, it will not only cause The strength of the contact force is not enough, and it is easy to make the rail fastener break away from the rail, causing unnecessary losses. [0003] The track subgrad...

AI Technical Summary

Problems solved by technology

As the channel for the train to run, whether the rail can be fixed on the rail base is related to the safe operation of the train. The rail fastener is an important structure in direct contact with the rail. If the contact between the two is not close enough, it will not only cause The strength of the contact force is not enough, and it is easy to make the rail fasteners detach from the rail, causing unnecessary losses

[0003] The track subgrade structure of the existing rail transit is basically to directly place the sleeper on the subgrade, and directly fix the sleeper through the fixing component set on the subgrade, or directly pour the sleeper into the concrete and fix it, but The structure of the fixed component is single, and the contact with the rail is less, resulting in insufficient support strength of the entire track, poor stability and stability, easy displacement of sleepers, poor shock absorption effect, and great potential safety hazards

[0004] At the same time, the swaying of the rails caused by the running of the train drives the swaying of the fixed components. The existing fixed components cannot play a shock-absorbing role, resulting in easy loosening of the connection parts. At the same time, the friction between the existing fixed components and the rails is small. When the load is large, the fixed component cannot fix the rail very well, resulting in the fixed component being easy to loosen or separate, and the fixing effect is poor, which has a certain impact on use. Therefore, we propose a rail fixing for rail transit seat

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