Fast clip fastening: A trend of rail fastening system

 

The fast clip rail fastening system is a new type of rail fastening system, which represents the latest level and development direction of railway fastener technology, and it has been widely used in the railway of Europe (CEN), Germany (DB-AG), France (SNCF), Japan ( RTRI), Australia (AS) and North America (AREA) and other countries. The fast clip railway fastening system is also introduced and applied to the railway line in China. The two sections of Hefei Passenger Dedicated Line, Shitai Passenger Line will adopt such rack fastener system.

FC rail fastener system is always used for the ballasted track. It has been widely used in some high-level railway lines in Europe and America, such as the French TGV high-speed railway line, with a design speed of 350KM/h. It has also been widely used in the Japanese Shinkansen in Asia and the high-speed railway in South Korea, and the effect is good.

About FC rail fastening system

Fc fastener system composition and main technical requirements:

1. Flexible separation;
2. no shoulder;
3. With railroad tie plate;
4. No track bolt buckle;
5. No adjustment of the height;
6. The elasticity is not separated;
7. The gauge adjustment is -8 ~ +4mm;
8. Buckle pressure is 10kn;
9. The range of 12mm;
10. Static stiffness: 80 ~ 100kn / mm.

The FC fastener system is shoulder-free and bolt-free fasteners, it has less spare parts, compact structure and strong track-keeping capability. The base is pre-embedded when the concrete sleeper is made, and the elastic clip is pressed against the rail by inserting the embedded base. An insulating rail gauge block is arranged between the embedded base and the steel rail, and the left and right positions of the rail are adjusted by replacing the insulating gauge block. This rail fastener cannot be adjusted for rail height.

Fastener composition

• The Fc fastener system consists of a fast clip, an insulating cap, a pre- embedded base, an insulated gauge block and a rail rubber pad.
• Fast elastic clips are divided into Fcl504 type, Fcl502 type and Fcl306 type. Fcl504 type rail clip (15mm in diameter with 8494 insulating cap) is installed in the general section. FCl502 type elastic bar (15mm in diameter and no insulating cap) is installed at the splint. FCl306 type elastic bar is installed in the small resistance area (diameter is 13mm with 12133 type insulating cap).
• Insulation gauge blocks have a total of 10 specifications, respectively, 6 to 15 mm thickness.

Main technical requirements

• The sum of the gap between the rail and the insulation gauge block, or the gap between the insulation gauge block and the embedded iron seat should not exceed 1 mm.
• The pressure should not be less than 9kN (small resistance clips should not be less than 3kN).
• Distance adjustment: -8 to +8mm, the rail gauge and rail adjustment are made by replacing the insulation gauge blocks of different numbers.
• Low adjustment: the fasteners cannot be adjusted in height, and the rail pad should not be raised.

The main technical parameters

AGICO Rail is a rail fastening system supplier with more than 20 years’ experience, we can provide E-clip rail fastening system, Nabla fastening system, KPO fastening system, SKL fastening system, which one do you want?