Rail fastener device

A technology of rails and fasteners, which is applied in the direction of tracks, fixed rails, roads, etc., can solve the problems of high cost, difficult system maintenance, and low system security, so as to improve the bonding force, strengthen the contact area and frictional bonding force, to avoid the effect of mutual displacement

CN107254812APending Publication Date: 2017-10-17TAICANG ZHONGBO RAILWAY FASTENER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-10-17

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Abstract

The invention provides a rail fastener device. The rail fastener device can solve the problems existing in a current fastener device of low system security, high system maintenance difficulty and high cost. A base plate is arranged on a sleeper, and symmetrical bosses are arranged on the left and right sides of the base plate respectively and provided with spike holes running through the whole base plate; the bottom of a rail is placed on the base plate through a pad plate under the rail and located between the two bosses; the two sides of the rail are fastened on the base plate through two fastening assemblies respectively; each fastening assembly comprises a gauge block, an elastic strip, a spike and a casing, and the casings are embedded in the sleeper; a pressing plate part of each gauge block is arranged at the top end of the side, facing the rail, of an abutting part, the two end faces of the abutting part of each gauge block abut against the bosses and the rail respectively, and the pressing plate part of each gauge block presses the rail on the pad plate under the rail; the spikes extend into the casings embedded in the sleeper and are in tight threaded connection with the casings after penetrating through the elastic strips and the spike holes; arc grooves are formed in the bosses of the base plate and matched with the arc faces of the tails of the W-shaped elastic strips.
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Description

technical field

[0001] The invention relates to the field of railway fasteners, in particular to a rail fastener device. Background technique

[0002] Rail fasteners are an important part of the track structure. They are used to fix the position of the rail, prevent the longitudinal and lateral displacement of the rail, and prevent the rail from tipping over. At the same time, it can also provide the necessary rail elasticity and transmit the force on the rail to the foundation under the rail. . The existing rail fastening device includes a base plate, a backing plate under the rail, and fastening components arranged symmetrically on the left and right sides of the rail. It includes gauge blocks, elastic strips, spikes and bushings. The bushings are pre-embedded in the sleepers. The left and right sides of the base plate are symmetrically provided with bosses. The rail is pressed against the boss, and the other side presses the rail on the under-rail backing plate. The ela...

Examples

Embodiment Construction

[0022] See figure 1 with figure 2 , the rail fastener device of the present invention includes a base plate 10, a backing plate 20 under the rail and a fastening assembly 30, the base plate 10 is arranged on the sleeper and the left and right sides of the base plate 10 are respectively provided with symmetrical bosses 11, and on the bosses 11 There is a spike hole 12 that runs through the entire base plate 10. The bottom of the rail 40 is placed on the base plate 10 through the under-rail backing plate 20 and is located between the two bosses 11. Both sides of the rail 40 are respectively fastened by a set of fastening components 30. On the base plate 10; the fastening assembly 30 includes a gauge block 31, a W-shaped elastic strip 32, a flat washer 33, a spike 34 and a sleeve 35, the sleeve 35 is pre-embedded in the sleeper, and the gauge block 31 includes a top tight part 311 and pressure plate part 312, the pressure plate part 312 is arranged on the top of the clamping pa...