Device for on-site thermal straightening after normalizing of trough rail

The invention belongs to the technical field of railway engineering mechanical equipment manufacturing, and particularly relates to a device for on-site hot straightening of a grooved rail after normalizing, which comprises a grooved rail straightening rack, a rack supporting rod mechanism, a grooved rail connecting rod mechanism, a manual hydraulic jack and a ruler, the rack supporting rod mechanism is connected with the grooved rail straightening rack, and the rack supporting rod mechanism is connected with the grooved rail connecting rod mechanism. Groove-shaped rail connecting rod mechanisms are arranged at the two ends of the groove-shaped rail straightening machine frame, the manual hydraulic jack is placed below the groove-shaped rail straightening machine frame, and the ruler is placed beside a groove-shaped rail. The device is simple in structure and light in weight, the straightening machine frame is about 40 KG, and the carrying strength is not high for site construction. The ...

Runway switch laying method for ballast track passenger special line

The invention relates to an in-situ laying method for the turnouts of ballast track dedicated passenger lines, which is characterized in that: a plurality of temporary track panels are laid at the original positions of the turnouts for transitive purposes, and a piece of large mechanical road maintenance equipment is adopted to tamp the track panels to stabilize the ballast bed; then the temporary track panels are removed, a turnout assembling platform is arranged at the original position of the turnout, and the overall assembly and fine adjustment of the turnout are carried out on the turnout assembling platform. Then a piece of synergic hydraulic equipment is used to jack up the assembled turnout as a whole, the operations of charging ballast and tamping are performed after removing theturnout assembling platform, and the turnout should be repaired and maintained regularly while in service. The invention has the advantages of tremendously improving the adjusting precision of the turnout ...

Runway switch laying method for ballast track passenger special line