mobile device for renewal and the renewal of ties and / or rails in einari rail

摘要

A mobile track renewal train comprises a bridge-like elongated carrier frame supported on an old and a new track section on respective on-track undercarriages and bridging an intermediate trackless ballast bed section. A chain guide including a transversely extending guide section is mounted on the carrier frame and encloses a space, the chain guide rising from the transverse guide section adjacent the ballast bed on an upper portion, and an endless excavating chain is supported for movement in the chain guide to excavate ballast from the bed. The carrier frame also supports a tie laying device for laying new ties in a position extending transversely to the carrier frame and a conveyor for transporting the new ties in succession to the tie laying device, the tie laying device being positioned in the enclosed space and the conveyor having a path extending through the space towards the tie laying device.