Bolt-free fastener system for tramcar

A technology for trams without bolts, applied in the direction of tracks, track superstructures, roads, etc., to achieve the effects of preventing over-installation, improving stability, and increasing distance adjustment

Inactive Publication Date: 2014-08-06
GUANGZHOU METRO DESIGN & RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention overcomes the shortcomings of the prior art and provides a boltless fastener system for trams, which adopts a boltless design, effectively solves the problems of interface, regular retightening, etc., increases the amount of distance adjustment, and improves the bite Stability, prevents over-installation, improves resistance to lateral forces

Method used

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  • Bolt-free fastener system for tramcar
  • Bolt-free fastener system for tramcar
  • Bolt-free fastener system for tramcar

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 , 2 As shown, a boltless fastener system for a tram according to the present invention includes two e-shaped spring bars 1, two spiral spikes 2, an iron backing plate 3 for preventing the spring bars from being installed, and rails 13 on both sides An e-shaped spring bar 1 and a spiral spike 2 are arranged respectively, a height-adjusting backing plate 4 is laid under the iron backing plate 3, an elastic backing plate 5 is laid between the height-adjusting backing plate 4 and the sleeper 6, and rails on both sides of the rail 13 The e-shaped elastic bar 1 and the spiral spike 2 are arranged in a staggered manner. The spiral spike 2 passes through the iron backing plate 3 and is fixed to the sleeper 6. The sleeper 6 is equipped with a pre-embedded casing 7 corresponding to the spiral spike 2. Refer to image 3 , A double disc spring washer 8 is provided between the spiral spike 2 and the iron backing plate 3, which provides elasticity to the spiral spik...

Embodiment 2

[0057] This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated, and the difference is that:

[0058] refer to Figure 13 , Figure 14 , the fastener system of the present embodiment is not provided with a rail brace 17, which is used for general site use, and the position where the rail brace 17 contacts the iron backing plate 3 is not provided with serrated teeth 19 either.

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Abstract

The invention relates to a bolt-free fastener system for a tramcar. The bolt-free fastener system for the tramcar comprises e-type elastic strips, screw spikes and iron chairs. The iron chairs are laid on a sleeper. The screw spikes penetrate through the iron chairs and are fixedly connected to the sleeper. An iron base is arranged on each iron chair and provided with an installation hole used for installing the corresponding e-type elastic strip. One end of each e-type elastic strip penetrates through the corresponding installation hole and the other end of each e-type elastic strip is used for fixing a steel rail. The bolt-free fastener system for the tramcar is simple in structure; compared with a metro fastener, cost of a tramcar fastener is not increased, connectors can be omitted, regular and repeated screwing can be avoided, the distance-adjusting degree is effectively increased, stability is effectively improved, over-installation is effectively avoided, transverse-force-resistance is effectively improved, and prevention and protection are effectively achieved; the effect that the work is halved with double results can be achieved and three million times of fastener assembly fatigue tests show that results are good.

Description

technical field [0001] The invention belongs to the field of railway track fasteners, and relates to a railway fastener, in particular to a boltless fastener system applicable to trams. Background technique [0002] In recent years, urban rail transit systems such as domestic subways and light rails have developed rapidly, effectively alleviating the tension in urban traffic. Fastener systems are indispensable in urban rail construction. The fasteners are used to connect the rails and the sleepers, and fix the rails on the sleepers. The fasteners include iron backing plates, elastic strips, rubber backing plates, nylon parts, bolts, etc. The elastic strips are installed in the spring strip holes of the iron backing plate. Elastic deformation produces a downward pressure on the rail to fix the rail to prevent the rail from shaking when the train passes by. [0003] In addition to subways and light rails, many cities have begun to develop tram lines. The rails of trams are di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B21/04
Inventor 罗信伟史海欧贺利工吴嘉姬霖王仲林刘文武李平王晓谦和增礼张立刚和金祥李军广
Owner GUANGZHOU METRO DESIGN & RES INST
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