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通过对张小楼井安装的副井提升机的性能测试，得出了制动盘受油污染情况下及油污处理过后提升机安全制动减速度值及测算的实际摩擦系数，通过对比，提出了应充分重视制动盘油污对制动力矩影响的重要性。
By testing the performance of the auxiliary shaft hoist installed in Zhang Xiao Lou, the value of brake deceleration and the actual friction coefficient of hoist under oil pollution condition and oil pollution treatment are obtained. By comparison, Should pay full attention to the importance of brake disc oil on the impact of braking torque.