Technical requirements for overhead crane installation

Technical requirements for overhead crane installation：In the measurement span (the span refers to the distance between the center of the rigid leg support surface and the center of the flexible leg support surface), the diagonal deviation of the overhead, the horizontal side of the main beam, the deviation of the carriage gauge, Car track height difference, the car rail joints at the level of difference and lateral dislocation and other indicators have reached the required technical requirements, then the joints of all the bolts tightened. Hinged hole bolts connected parts, should be specified in accordance with the provisions of the tolerance reaming, and then hinge hole with bolts, can not be arbitrarily changed.

 When the indicators are in line with technical requirements and only the car rail joints at or beyond the height difference, the higher the rail joints can be made of slope. 

Box structure of the main beam, the cavity can not paint anti-corrosion, in order to prevent water vapor intrusion corrosion main beam cavity, must ensure that the main beam cavity sealing. Therefore, the box-shaped joints, in addition to the bolt with a good connection, but also according to the provisions of the drawings in the joints on both sides of the big ribs on the welding of a square plate, square plate around to be full, not breathable. The girders at both ends of the main girders are finally welded in the same way.

Gantry cranes and overhead crane structure is basically the same, the structure is different from the legs and cantilever, so there are many safety requirements of the same place.