防坠器性能的好坏将直接影响到立井提升系统的安全。首先建立防坠器制动动力学模型,通过分析防坠器缓冲绳抽出及未抽出两种情况,得到了缓冲绳抽出的条件及罐笼重量、速度对制动减速度峰值的影响关系,并通过对试验曲线与理论曲线的分析比较,验证了力学模型建立的正确性,为防坠器的设计提供理论依据。 Fall arrester performance will directly affect the vertical shaft to enhance the safety of the system. First of all, the dynamic model of anti-dropping brake is established. By analyzing the withdrawal of the anti-dropping device and the non-extraction, the relationship between the withdrawal of the rope and the peak value of braking deceleration is obtained. The test curve and theoretical curve analysis and comparison, verify the correctness of the mechanical model established for the design of anti-dropping device to provide a theoretical basis.