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分析了桥式起重机反接制动过程中，车轮打滑和产生自激振动的原因，通过实验测得了动态扭矩的波形，确定了打滑的条件，推导了动载荷的计算公式，计算结果与实测值基本相符．对减缓机构动载荷提出了具体措施，对改善桥式起重机，特别是大型桥式起重机的工作性能有重要意义．
The reasons of wheel slippage and self-excited vibration during the reverse braking of overhead traveling crane are analyzed. The dynamic torque waveform is measured by experiments and the condition of slipping is determined. The calculation formula of dynamic load is deduced. The calculation results and the measured values Basic match. Concrete measures are put forward to slow down the dynamic load of the mechanism, which is of great significance to improving the working performance of the overhead traveling crane, especially the large overhead traveling crane.