Introduction of Type V Elastic Fasteners

Spring fasteners can be divided into different models to meet the operating conditions of passenger routes. Type V spring fastener is a bolt fastener system designed mainly for the line conditions of laying ballasted track with prestressed concrete and shoulder rest. The V-type clip fastener is improved on the basis of the original clip I and II clips, and the clip I height-adjustment clip, while keeping the size and position of the existing sleeper rail bearing groove unchanged.

Type V spring clip fasteners are composed of spring clips, spiral spikes, flat washers, gauge baffles, under-rail backing plates and pre-embedded sleeves positioned in prestressed concrete with shoulder rests.

When the height of the rail is adjusted, the height-adjusting backing plate is used. The V-type elastic fastener is an elastic non-separable fastener with a concrete shoulder on the sleeper. The spiral spike and the sleeve are used to fasten the elastic strip, which improves the insulation of the fastener system. Performance, can be installed with a variety of elastic bars, both large buckle pressure elastic bars and small buckle pressure elastic bars can be installed, with different friction coefficients of under-rail pads (rubber pads or composite pads), to meet the needs of different line resistances Require.

The gauge baffle made of engineering plastics is used to adjust the gauge and play an insulating role, reduce the number of fastener parts, and avoid affecting the stress state of the screw spike when adjusting the gauge; through the gap between the under-rail plate and the concrete sleeper rail surface Pad into the height adjustment backing plate to realize the height adjustment of the rail.

From the perspective of the overall structure, the V-shaped clip fastener is based on the original fastener structure, and is optimized and improved in several aspects, for example, to improve the insulation performance of the fastener system; to improve the fatigue performance of the clip; at the same time, it can be installed The small buckle pressure elastic strip and the composite backing plate with a small friction coefficient have the function of a small resistance fastener.