Wheel set in the crane operating agencies in question

       Crane group level institutions wheel  hoist gantry crane  skew values ​​are important technical parameters, the skew values ​​of tolerance will cause gnawing rail, increasing the running resistance, vibration and noise, increased rail and wheel wear and greatly reduce the life of the  overhead bridge crane   so various types of cranes manufacturing conditions have provisions allowing the wheel horizontal deflection values. Application to control the level of operating agencies wheel deflection value is mainly based on a different product mix to take appropriate technical measures. More commonly, process measures are relatively simple design structure is: the wheel assembly to the bracket on the wheel group consisting, for example, the wheel bearing housing angle group and trolley 45 ° Split wheel set bearing housing, the main structure of the crane, installation after adjusting wheel horizontal deflection suitable fixed.

       The disadvantage of such structures are: lifting accessories wheels only play the role of a fixed wheel, the wheel after installation difficult re-adjustment. If the primary structure of the wheel group manufacturing errors horizontal installation position adjustment difficulties or immeasurable adjustable, you do a lot of repair work to complete body assembly, which is bound to increase the cost and manufacturing cycle. bridge gantry crane  put into use, if the wheel because the main structural deformation or stress release and other reasons the horizontal deflection values ​​of tolerance, will have to remove the lifting accessories readjust wheel set assembly, or flame straightening deformation of the structure, complex and precision repair work difficult to control, it will definitely increase costs and affect product quality and reputation.