Welding unit and method for welding rails of a track
AssigneePlasser & Theurer Export von Bahnbaumaschinen Gesellschaft m.b.H.
InventorHEINZ MUEHLLEITNER
Life of this patent
Estimating the term…
Abstract
A welding unit for welding rails of a track has a unit lower edge forming a lower boundary of the welding unit, with regard to a vertical, and a shearing device provided for removing a weld bead. A rail base section of the shearing device is designed to be lowered, relative to the welding unit, by way of a drive from a rest position situated above the unit lower edge into a shearing position situated below the unit lower edge. Thus, the welding operation can be carried out without lifting the rails from the sleepers.
Claims5
1-4. (canceled)
A welding unit for welding rails of a track, the welding unit comprising:
- a unit lower edge forming a lower boundary of the welding unit with reference to a vertical;
- a shearing device for removing a weld bead, said shearing device having a head part to be placed on a rail head, two side parts movably mounted towards one another, and a rail base section to be applied to a rail base in a shearing position thereof;
- and
- a drive configured to lower said rail base section of said shearing device relative to said welding unit from a rest position above said unit lower edge into a shearing position below said unit lower edge.
A welding method, comprising:
- providing a welding unit with a shearing device;
- welding a rail of a track with the welding unit and forming a welded rail with a weld bead, while maintaining the shearing device in a raised position during the welding;
- subsequently raising the welding unit together with the welded rail, lowering the shearing device into a shearing position, applying the shearing device to the rail, and shearing off the weld bead with shearing device.
Dependencies are inferred from the claim text.