The guard rail plate is a pad that is arranged between the frog guard rail and the switch sleeper to provide firm connection conditions for the guard rail and the running rail (basic rail) and to ensure the width of the guard rail rim groove and the safety of driving. plate. The guard rail pad is one of the important parts of the track. Its function is to ensure that the vehicle can smoothly pass through the special area such as the switch frog or bridge without derailment accident. UseEdit
The guard rail pad is one of the important parts of the track. Its function is to ensure that the vehicle can smoothly pass through the special area such as the switch frog or bridge without derailment accident.
Therefore, the guard rail pad bears quite complex wheelset dynamic loads, that is, the vertical and horizontal loads, the spring bar pressure, the spring bar bolt tension and the bolt pre-tightening force transmitted by the wheel through the rail and the guard rail to the pad. After the existing welded guard rail backing plate is used, cracks appear in the welding seam in advance under the action of complex dynamic load, resulting in premature breakage of the backing plate, unable to guarantee the size of the guard rail rim groove, and seriously endangering the driving safety.
Therefore, the structure of the guard rail pad must be optimized to ensure the safe and smooth passage of the train through the high-speed switch.