Rail Fasteners— Track Elastic Fixing Device

• Customization: Available
• After-sales Service: One Year
• Warranty: One Year
• Customized: Railway Tools
• Certification: ISO9001
• Type: Railway Tools
• Transport Package: Export Wooden Box
• Origin: Handan, Hebei Province, China
• Production Capacity: 10000

Product Description

Main uses
Fix the position of the steel rail
Prevent the rails from undergoing lateral or longitudinal displacement under the load of the train and ensure the stability of the gauge.
It is applicable to different track sections such as straight lines, curves and turnouts.
2. Provide elastic buffering
The impact and vibration of train wheel sets are absorbed by elastic elements to reduce the dynamic stress of the track structure.
Reduce wheel-rail noise and enhance ride comfort.
3. Insulation protection
Some fixing devices are made of insulating materials (such as nylon and composite materials) to prevent short circuits in the track circuit, and are suitable for electrified railways or automatic block sections.
4. Adapt to temperature changes
Allow the rails to freely extend and contract when the temperature changes (such as in seamless lines), reducing the deformation of the rails caused by temperature stress.
5. Enhance orbital stability
It is suitable for high-intensity operating environments such as high-speed railways and heavy-haul railways, reducing the changes in the geometric shape and position of the tracks.

 

Usage scenarios
1. High-speed railway
High smoothness and low vibration are required. Elastic fixing devices (such as WJ-8, Vossloh, etc.) can effectively absorb high-frequency vibration and improve the operational stability of the train.
2. Heavy-haul railway
To withstand the impact of large axle loads on trains, high-strength elastic fasteners (such as Type III elastic fasteners and Nabla fasteners) should be used to prevent rail crawling and fastener loosening.
3. Urban rail transit
Vibration damping elastic fixing devices (such as Cologne egg fasteners and vibration damping pads) are adopted to reduce noise and minimize the impact on surrounding buildings.
4. Turnout section
The turnout structure is complex and subjected to large forces. Special elastic fixing devices (such as elastic base plate fasteners) need to be adopted to enhance stability.
5. Small-radius curve
When the train passes through, the lateral force is large. The elastic fixing device can prevent the rail from flipping outward and keep the gauge stable.
6. Bridges and seamless lines
The tracks on the bridge are greatly affected by temperature. The elastic fixing device allows the rails to extend and contract, reducing additional stress.

 

The track elastic fixing device is a key component of the railway track system, directly affecting the safety and comfort of train operation. Different lines (high-speed, heavy-load, subway, etc.) require the selection of appropriate fastener types and regular maintenance to ensure the long-term stable operation of the tracks.

 

Key points for installation and maintenance
When installing, it is necessary to ensure that the pressure of the spring bar is moderate. If it is too tight, it may affect the elasticity; if it is too loose, it will not be able to effectively fix the rail.
2. Regularly check the condition of the fasteners to prevent the elastic bars from breaking, the rubber pads from aging or the bolts from loosening.
3. Use insulating fasteners in electrified sections to prevent the failure of track circuits.
4. High-speed railway fasteners need to be adjusted with high precision to ensure the smoothness of the track.