how to install double girder overhead crane

Main parts: Steel columns, Bearing Beams, Rails, Busbar, and Crane (Main girder, end beams, hoist trolley)

Set up the columns straight according to the layout drawings.

Weld the bearing beam on the columns. Connect the bearing beams with connection bolts.

The error standard of the bearing beams is the same as the rail.

Rail installation

The track must be laid according to the span of the crane. The track laying standard is: height error within ±10mm, span error within ±5mm. The gap between the two tracks must be misaligned by about 3m.
There is a 0.3mm gap between the two rails. The rails are connected by splints and tightened. The rail is welded on the bearing beam by the pressure plate, and the pressure plates are welded symmetrically with an interval of 700mm. The ends of the rail connection must be welded with double pressure plates.

Busbar installation

Seamless type busbar installation: The busbar is the power feeder system of the crane. The busbar components are composed of tensioners, brackets, buckles and sliding lines.
Install the hanger on the bracket, and then weld the bracket to the bearing beam, the distance between the two brackets is 1.5m.
Install the busbar on the buckle, and tighten the two ends with a tensioner (the tensioner bracket is drilled with a 50×50 angle iron and welded to the end of the bearing beam, the customer must prepare materials on site)

Straighten the busbar, make the busbar parallel to the rail, tighten the buckle nut, the level of the sliding line is ±5mm.

Assemble the end beam and the main girder to complete the assembly and installation of the crane bridge.
Lift the assembled crane bridge on the track.
Lift the trolleys onto the main girder.
Wiring must be operated by professional electrical engineers.
Installation of the current collector, the collector is installed under the busbar, and the bracket is welded to the bearing beam.

The above installation must be operated by professionals.

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