多绳摩擦式提升装备通过钢丝绳和摩擦轮之间的摩擦力实现物料的提升和下放。

多绳摩擦擦式提升装备钢丝绳和摩擦轮之间的摩擦力实现的提升和下放。和摩擦轮轮存在一定的压强，并保证具有的摩擦力实现了波兰的提升和。尾绳在保证保证提升。装备正常与稳定运行同时会导致丝绳绳，丝绳位置绳轻松随升容器平衡或锤）的。变化而改变改变，这将成为流行的交战宽度。受到材料长度增加和磨损性限制，只能牺牲提升机的提升能力，系统安全运行，从而提升生产成本。问题一一提升了钢丝绳的安全性，使方案交变了抗性，导致了钢丝绳的疲劳强度，无法保证钢丝绳的疲劳寿命，断绳甚至断绳丝丝丝丝丝丝断绳。工程<br>可行性。

Multi rope friction lifting equipment realizes the lifting and lowering of materials through the friction between steel wire rope and friction wheel. The total load is mainly composed of materials, containers, steel wire rope (head rope) and balance rope (tail rope). These loads make a certain specific pressure between steel wire rope and friction wheel, and ensure sufficient friction to realize the lifting and lowering of load. While ensuring the normal and stable operation of the lifting equipment, the tail rope will cause the tension in the steel wire rope to change alternately with the position of the lifting container (or counterweight), which will cause alternating stress amplitude. With the increase of well depth and lifting load, especially for ultra deep wells, the length and self weight of the first victory and end of the lifting wire rope will greatly increase, resulting in the increase of the specific pressure between the first rope and the friction wheel pad. Limited by the strength and wear resistance of the material itself, the safe operation of the lifting system can only be ensured by sacrificing the lifting capacity of the hoist, which will reduce the lifting efficiency and increase the production cost. The increase of tail rope length greatly increases its quality, resulting in more serious problems - the increase of alternating stress amplitude of lifting steel wire rope, which aggravates the fatigue wear of steel wire rope, can not ensure the fatigue life of steel wire rope, and even cause major safety problems such as wire and rope breakage. Therefore, the multi rope friction hoist scheme for ultra deep wells does not have engineering feasibility<br>Feasibility.<br>