An ultra-deep shaft double-drum driving large-load friction lifting system and method

Abstract

The invention discloses an ultra-deep vertical shaft double-roller drive large-load friction elevating system and method, and belongs to the technical field of mine shaft elevating. The ultra-deep vertical shaft double-roller drive large-load friction elevating system comprises a friction roller, an auxiliary roller, a guiding wheel, elevating steel wire ropes and a drive motor. The ultra-deep vertical shaft double-roller drive large-load friction elevating system is characterized in that each steel wire rope correspondingly bypasses a plurality of rope grooves of the friction roller and the auxiliary roller so that the surrounding angle of the elevating system can be increased. By adoption of the simple structure, the tail rope diameter needed for guaranteeing normal running of the elevating system is reduced, and the steel wire rope manufacturing cost and machining difficulty are lowered. On the basis of an existing shaft tower type multi-rope friction elevating system, the corresponding number of the rope grooves of the friction roller and the auxiliary roller and the guiding wheel are increased for each elevating steel wire rope, so that the surrounding angle formed by each steel wire rope is increased to the product of 180 degrees and the number of the friction rope grooves where each steel wire rope bypasses, the stress fluctuation in the elevating system is reduced, theservice life of the steel wire ropes is prolonged, and the safety of the elevating system is improved.

Description

technical field [0001] The invention belongs to the technical field of mine hoisting, in particular relates to the technical field of ultra-deep vertical shaft hoisting, in particular to an ultra-deep vertical shaft double-roller driven large-load frictional lifting system and method. Background technique [0002] The multi-rope friction hoisting system is an important link in the mine production process. It is widely used in the modern mining industry. The existing shaft tower or floor-type friction hoisting systems are basically connected to two hoisting wire ropes after winding the friction wheel once. The enclosing angle formed by the hoisting container is generally 180°. When the shaft tower friction hoisting system is applied to the hoisting of an ultra-deep shaft, the breaking force under the condition of a small number of wire ropes cannot meet the existing safety factor requirements and meet the safety requirements. When the coefficient is required, the diameter of ...

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Problems solved by technology

[0002] The multi-rope friction hoisting system is an important link in the mine production process. It is widely used in the modern mining industry. The existing shaft tower or floor-type friction hoisting systems are basically connected to two hoisting wire ropes after winding the friction wheel once. The enclosing angle formed by the hoisting container is generally 180°. When the shaft tower friction hoisting system is applied to the hoisting of an ultra-deep shaft, the breaking force under the condition of a small number of wire ropes cannot meet the existing safety factor requirements and meet the safety requirements. When the coefficient is required, the diameter of the tail rope required is relatively large, and the large-diameter steel wire rope is not easy to manufacture and process, and at the same time, the traction force required to ensure the normal operation of the system is relatively large. Larger stress fluctuations affect the service life of the wire rope and are not conducive to the safe operation of the lifting system

However, although the current winding hoisting system can be used for deep well hoisting, the number of hoisting wire ropes is small, and it is impossible to achieve large load hoisting.

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