Mine hoist

Abstract

The invention discloses a mine hoist. The mine hoist comprises a friction wheel, a main shaft device, a driving device, a braking mechanism and at least one lifting composite belt, wherein at least one limiting groove is formed in the surface of the friction wheel in a circumferential direction, an included angle of 110 to 140 degrees is formed between two side surfaces and the bottom surface of the limiting groove, and the connecting position of the side surfaces and the bottom surface is in smooth transition; the main shaft device passes through the friction wheel, and the main shaft deviceis fixed to the friction wheel; the driving device is connected with the friction wheel so as to drive the friction wheel to rotate; the braking mechanism is connected with the friction wheel so as todrive the friction wheel to slow down or stop rotating; and each lifting composite belt comprises a plurality of steel wire ropes or a plurality of high-performance fiber ropes and polymer composites, and the plurality of steel wire ropes or the plurality of high-performance fiber ropes are wrapped in the polymer composites. According to the mine hoist, the corrosion of the external environment to the steel wire ropes can be effectively solved, the diameter of the required single steel wire rope and the friction wheel and the size and weight of the friction wheel are obviously reduced, and the carrying capacity and the lifting efficiency are obviously increased.

Description

technical field [0001] The invention belongs to the field of mines, and in particular relates to a mine hoist. Background technique [0002] The friction mine hoisting system generally includes a hoisting container, a hoisting wire rope, a balancing wire rope, a friction wheel, a guide wheel (or sky wheel) and a motor, etc. Among them, the working principle of the multi-rope friction hoist is: the principle of flexible body friction transmission, The hoisting wire rope is wound around the friction wheel, and the power is transmitted by the friction between the wire rope and the friction lining. The hoisting wire rope is placed on the friction wheel. Generally, a hoisting container is hung at both ends of the hoisting wire rope, or a hoisting container is hung at one end, and a counterweight is hung at the other end. A balancing wire rope is also hung at the bottom of the container or the counterweight. The balancing wire rope is used for balancing Increase the weight of the...

AI Technical Summary

Problems solved by technology

However, due to the poor environment in the wellbore, there is humidity, water, or corrosive water mist such as acid, alkali, and salt, etc., the corrosion of the steel wire rope is relatively large, which often causes defects such as corrosion, deformation, and shrinkage of the steel wire rope. The life of the steel wire rope is shortened. At present, the surface of the steel wire rope is often galvanized for corrosion protection, but the rigidity of the steel wire rope increases after galvanizing, and the flexibility decreases, and the steel wire rope loses its anti-corrosion performance again after the galvanized layer is worn during use; and, with the increase of the lifting height And the increase of lifting load, especially for deep and ultra-deep mines, the diameter of the wire rope and friction wheel required by the mine hoist increases accordingly, and the weight of the hoisting wire rope and the volume and weight of the friction wheel also increase significantly, resulting in mine hoists. Significant, small bearing capacity, low lifting efficiency, short service life and frequent replacement of wire ropes, unfavorable for transportation and installation, and increased costs

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