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本文论述竖井箕斗装载时承受矿石冲击的疲劳强度计算,承载系统简化为串联双弹簧系统。由钢丝绳和箕斗组成的串联弹簧系统承受矿块冲击,矿块初始位能由钢丝绳和箕斗承受,量的分配只与钢丝绳和箕斗底板的弹性系数有关。箕斗底板承受冲击属多次冲击疲劳问题,按脉冲循环考虑;为保证箕斗正常工作,钢丝绳吸收冲击能量时还必须满足安全条件的要求。
This article discusses the calculation of the fatigue strength of shaft skips subjected to ore impact during loading, and simplifies the bearing system to a series double spring system. A series spring system consisting of a wire rope and a skip suffers the impact of the nugget. The initial position of the nugget can be taken up by the wire rope and the skip, and the amount distribution is only related to the elastic modulus of the wire rope and the skip base. Bucket bottom plate to withstand the impact of a number of impact fatigue problems, according to the pulse cycle considerations; in order to ensure the normal operation of the skip, steel wire rope to absorb the impact energy must also meet the safety requirements.