桥式起重机是起重设备的主要机种,应用非常广泛,其运行状况的好坏对安全生产有直接影响。桥式起重机在使用一定时间后,由于工况条件或运行频繁,都会出现不同程度的大车运行啃轨现象,轻则降低设备的工作效率,加重维护工作量和运行成本费用,重则导致安全隐患,酿成人身和设备事故。根据对起重机多年的检测和实践工作,针对桥 Overhead crane is the main type of lifting equipment, a very wide range of applications, the quality of their operations have a direct impact on safety. After the bridge crane is used for a certain period of time, due to the working conditions or frequent operation, there will be varying degrees of bus running gnawing phenomenon, ranging from reducing the work efficiency of the equipment, increasing the maintenance workload and operating costs, which in turn leads to safety Hidden risks lead to personal and equipment accidents. According to the crane for many years of testing and practice work for the bridge