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　　The horizontal skew value of the wheel set of the crane operating mechanism is an important technical parameter of the crane. Excessive deviation of the deflection value will cause rail chewing, increase operating resistance, generate vibration and noise, aggravate track and wheel wear, and greatly reduce the service life of the crane. Therefore, all types of crane manufacturing technical conditions must specify the allowable values for wheel horizontal skew. In the application, the horizontal deflection value of the wheels controlled by the operating mechanism is mainly used to take corresponding technical measures according to different product structures. A relatively common and relatively simple design structure is: assemble the wheels on the bracket to form a wheel group, such as the angular bearing box wheel group and the trolley-type 45° split bearing box wheel group, and on the main structure of the crane, the installation and adjustment wheel horizontal deflection is appropriately fixed.

　　The disadvantage of this type of structure is that the wheel set of lifting accessories only plays the role of fixing the wheels, and it is difficult to adjust the wheels after installation. If the main structure manufacturing error is made horizontally in the installation part of the wheel setIf adjustment is difficult or unlimited, a lot of repair work is required to complete the assembly of the mechanism, which will inevitably increase the cost and manufacturing cycle. After the crane is put into use, if the horizontal deflection value exceeds the difference due to deformation of the main structure or stress release, the wheel set of the lifting accessories must be removed and readjusted, or the deformation of the flame correction structure will be complicated and the accuracy is difficult to control, which will inevitably increase costs and affect product quality and reputation.

　　The horizontal skew value of the wheel set of the crane operating mechanism is an important technical parameter of the crane. Excessive deviation of the deflection value will cause rail chewing, increase operating resistance, generate vibration and noise, aggravate track and wheel wear, and greatly reduce the service life of the crane. Therefore, all types of crane manufacturing technical conditions must specify the allowable values for wheel horizontal skew. In the application, the horizontal deflection value of the wheels controlled by the operating mechanism is mainly used to take corresponding technical measures according to different product structures. A relatively common and relatively simple design structure is: assemble the wheels on the bracket to form a wheel group, such as the angular bearing box wheel group and the trolley-type 45° split bearing box wheel group, and on the main structure of the crane, the installation and adjustment wheel horizontal deflection is appropriately fixed.

　　The disadvantage of this type of structure is that the wheel set of lifting accessories only plays the role of fixing the wheels, and it is difficult to adjust the wheels after installation. If the main structure manufacturing error is made horizontally in the installation part of the wheel setIf adjustment is difficult or unlimited, a lot of repair work is required to complete the assembly of the mechanism, which will inevitably increase the cost and manufacturing cycle. After the crane is put into use, if the horizontal deflection value exceeds the difference due to deformation of the main structure or stress release, the wheel set of the lifting accessories must be removed and readjusted, or the deformation of the flame correction structure will be complicated and the accuracy is difficult to control, which will inevitably increase costs and affect product quality and reputation.