Mine hoist wire rope in the quality of wire rope and wire rope usage are more strict. In choosing a mining steel rope must be combined with the following principles to choose suitable mining steel rope.

1, the principle of mine hoist wire rope safety factor should be considered

Due to the complexity of mine hoisting cable force and many factors influence, mining the service life of wire rope can not be exactly calculated so far. In our country, the selection of hoist rope, checking all the safety factor method is adopted. According to hoisting rope under static tension and consider certain safety factor to choose or calculating the wire rope. Generally when selecting a replacement of wire rope reference to replace the safety factor of the rope. When selecting a new wire rope must be equipped with adequate safety factor.

2, the principle of mine hoist wire rope consider lay

Mine hoist wire rope according to the lay of wire rope in stock can be divided into direct twist (concurrent twist) and reverse twist twisting (interactive) in two forms. Inverse twisted rope twisted rope is soft, smooth surface, large contact area. The bending stress is small, long service life, broken wire broken wires in the head after the pry up easy to find. So mine is often used hand twist wire rope. But, it twist rotation yi song. In ascension often deviated well string hook, mostly using reverse twist wire rope.

According to the spiral direction of the wire rope can be divided into right-handed and left-handed, generally based on the principle of lay is consistent with the wire rope on the drum winding direction when, in order to avoid loose twist. At present domestic elevator wire rope were right spiral wound in the roller. Multi rope friction hoist, in order to eliminate the risk of the wire rope to improve container, left twist and right should be adopted to half the twisted rope.

3, the principle of considering the section of steel wire rope

According to the steel wire rope cross section shape of the tibia too can be divided into the circle and triangle strands wire rope wire two kinds. At the time of selection for mine hoist rope to refer to ascend machine usage to specific analysis

4, mine hoisting cable structure

At smuggling under the same cable, wire, the steel wire of smuggling is fine, although some soft wire rope at this moment, but I don't wear, so in vertical shaft ascension, should be used more than 6 strands of 19 wire or wire strands of 37. Due to the inclined wire roller friction increased wear and tear, so should choose some coarse wire diameter.