Turnout Vibration Damping Fastener

Turnout Vibration Damping Fastener

Double-layer removable turnout vibration damping fastener belongs to medium vibration damping fasteners. Compared with ordinary turnout fasteners, the vibration damping improved more than 8dB. The fastener body pre-assembled together in the factory, and all parts can be easily replaced and maintained. With large anti-drawing force of the system, it can effectively avoid the risk of train operation caused by insufficient anti-drawing force of sulfurized turnout damping fasteners.

Performance Indicators:

Content

Technical Indicators

Stiffness

Static stiffness is 20±3KN/mm.

Dynamic-static Ratio

Dynamic-static ratio no more than 1.35

Vibration Damping Effect

Compared with ordinary fasteners improve more than 8d B.

Fatigue Performance

Single set of fasteners vertical loading 8~40kN, lateral loading 4~20kN, after 3 million times of fatigue test, the rate of change of static stiffness is no more than 10%,

Gauge expansion is no more than 6mm, no damage to parts.

Insulation resistance

>108Q

Consistency of stiffness on single fastener

Stiffness deviation of different measurement points on a single fastener is controlled within 10%.

Fastener Transition

No need to set up stiffness transition section

Interface with Rail

It can be matched with 50kg rails, 60kg rails and many kinds of elastic bar forms.

Slope of rail bottom

According to the requirements of the design of rail bottom slope

Interface with sleeper

Suitable for many kinds of rail sleepers, and can be adjusted according to the requirements of design

Product Features
  • 01

    Medium Damping Fasteners: Applied to switch areas, compared with the general switch fasteners vibration reduction of more than 8dB.

  • 02

    Non-uniform stiffness and integrated molding of the middle pad: While ensuring the rigidity uniformity of fastener system, it solves the hidden taken-off danger of middle pad shear splicing structure, and the track safety is better.

  • 03

    Low Life Cost: removable structure, easy on-site replacement and maintenance, only need to replace the elastic pad.

  • 04

    Strong Applicability: Adopt patented self-locking mechanism, and the pre-loading force and stiffness can be adjusted on site to meet the needs of different working conditions.

  • 05

    Rich models: Designed with No. 7 single opening, No. 7 crossing, No. 9 single opening and No. 9 crossing supporting switch damping fastenings, and can be targeted according to customer requirements.

  • 06

    Simple and Quick Installation on Site: pre-assembly before leaving the factory, the installation method is same as that of ordinary turnout fasteners

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