About the structure and use of crane wheel block

Wheels are devices used to support cranes and loads, and to make the crane reciprocate on the track. The main forms of wheel damage are wear, hardened lamination, and pitting. The material of the wheel is generally ZG430-640 cast steel. In order to improve the wear resistance and life of the wheel surface, the tread surface should be heat-treated. The surface hardness is HB300-350 and the quenching depth is not less than 20mm.
Wheel set use
Crane wheel set: The horizontal deflection value of the wheel of the crane running mechanism is an important technical parameter of the crane. Excessive deviation of the deflection value will cause rails, increase running resistance, generate vibration and noise, increase track and wheel wear, and greatly reduce crane use Life, so all kinds of crane manufacturing technical conditions must stipulate the allowable value for wheel horizontal deflection.
Wheel group structure
In the application, the control of the horizontal deflection value of the wheels of the operating mechanism is mainly based on the adoption of corresponding technical measures based on different product structures. The more common design process is relatively simple: the wheels are assembled on the bracket to form a wheel set, such as an angular bearing box wheel set and a trolley-type 45 ° split bearing box wheel set. On the main structure of the crane, install After adjusting the wheel's horizontal deflection, fix it.