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根据摩擦式提升机的工作机理,在计算摩擦轮两侧钢丝绳受力特性的基础上,探讨影响提升能力的几个关键因素,分析不同提升参数下提升机的极限提升能力。结果表明:钢丝绳滑动和应力波动对极限提升能力影响最大;最大提升高度随着尾绳质量的增加而减小,随着摩擦轮直径和钢丝绳直径的比值(D/d)以及钢丝绳抗拉强度的增加而增大;最大提升载荷随着尾绳质量、摩擦因数、D/d比值和钢丝绳抗拉强度及数量的增加而增大;在1 500 m左右的提升高度下,提高提升能力的有效途径是增大钢丝绳的数量和抗拉强度;在1 000 m左右的提升高度时,可以通过增加钢丝绳数量,适当增加尾绳质量以及钢丝绳抗拉强度的方法提高提升能力。
Based on the working mechanism of friction hoist, several key factors that affect the hoisting capacity are discussed on the basis of calculating the force characteristics of the steel wire rope on both sides of the friction wheel, and the limit hoisting capacity of the hoist under different hoisting parameters is analyzed. The results show that the slip and stress fluctuation of wire rope have the greatest effect on the ultimate lifting capacity. The maximum lifting height decreases with the increase of tail rope mass. With the ratio of friction pulley diameter to wire rope diameter (D / d) and the tensile strength of wire rope Increases and increases; the maximum hoisting load increases along with the quality of tail rope, friction coefficient, D / d ratio and the tensile strength and the number of wire ropes; an effective way to improve the hoisting capacity at a hoisting height of about 1 500 m Is to increase the number of wire rope and tensile strength; at about 1 000 m hoisting height, you can increase the number of wire rope, rope quality and the appropriate increase in the tensile strength of wire rope method to enhance the ability to enhance.