Upper locking type damping rail fastener

Abstract

The invention relates to an upper locking type damping rail fastener. The upper locking type damping rail fastener comprises an insulated buffer plate, an iron tie plate combined structure, a rail pad, gauge blocks, anchor bolts, elastic strips, spring washers, flat cushion blocks and embedded sleeves, wherein a resilient tie plate is located between an upper iron tie plate and a lower iron tie plate, positioning embedding sleeves are nested on tube structures, the tube structures penetrate the resilient tie plate and the upper iron tie plate sequentially and are embedded in first steps through second steps, positioning locking sleeves are wedged into gaps, the embedded sleeves are embedded in a sleeper, the gauge blocks are pressed on the rail, the elastic strips are pressed on the gauge blocks, and the anchor bolts are arranged beside the elastic strips, penetrate the elastic washers, the flat cushion blocks and bolt holes of the iron tie plate combined structure sequentially and are connected with the embedded sleeves. The upper locking type damping rail fastener is good in safe reliability and excellent in damping effect, the upper iron tie plate and the lower iron tie plate are connected through a self-locking structure and pre-tightened force is adjusted through the anchor bolts, vibration of the iron tie plate combined structure can be reduced effectively, and upper locking can be realized.

Description

technical field [0001] The invention relates to the field of rail fasteners, in particular to a locking type shock-absorbing rail fastener. Background technique [0002] Rail transit projects have been widely used in national railway passenger and freight transportation, urban passenger transportation and other fields, and have developed rapidly in recent years, especially urban rail transit projects, including subways, light rails, trams, etc. An effective solution to the problem of traffic congestion. However, while the railway transportation system brings convenience to people's life and production activities, it is also becoming a new source of noise and vibration. Especially in dense residential areas, commercial centers and industrial areas, the railway traffic system has caused vibration and noise pollution that cannot be ignored. [0003] Especially in dense residential areas, commercial centers and industrial areas, the railway traffic system has caused vibration ...

AI Technical Summary

Problems solved by technology

Their disadvantages are: the dynamic displacement of the former rail is relatively large; the latter has a complex structure, a large number of parts and high cost

For example, after the track is used for a long time, problems such as vibration, looseness, and poor stability of the existing iron backing plate combination structure will occur. In case of failure, it will bring serious damage to the train and many passengers on the train safe question

Images