An automatic adjustment device for steel wire rope tension balance for hoisting

Abstract

The invention discloses a tension balancing and auto-adjusting device for winding ropes. The device comprises two winding ropes and is characterized by further comprising a horizontally arranged cylinder device, wherein the two ends of the cylinder device are fixedly arranged on an elevating container through bearings and bearing blocks, the outer surface of the cylindrical device is provided with a plurality of rope grooves arranged circumferentially and uniformly along an axial direction, a balancing rope is correspondingly arranged in each rope groove, the middle of the balancing rope rolls downwards the rope grooves and two ends of the upper portion are connected with lower surfaces of bearing beams respectively, the surfaces of the two bearing beams are connected with the winding ropes respectively corresponding to each bearing beam. The automatic adjusting device of tensions balance for winding ropes allows effective adjustment of the tension differences between two winding ropes and has the advantages such as quick responding of adjusting, no time delay error, small effective diameter, high adjusting accuracy, smooth and steady adjusting process, having position limiting function, anti-falling function, high anti-shock capacity and high security.

Description

technical field [0001] The invention relates to a double-rope multi-layer winding steel wire rope hoisting system; in particular, it relates to an automatic adjustment device for tension balance of steel wire ropes for hoisting. Background technique [0002] The exploration and development of deep minerals has become an important strategic choice for the development of many countries including my country. It is an effective type of ultra-deep well hoisting equipment to adopt double-rope multi-layer winding wire rope hoisting system (namely Brel hoisting system). [0003] Due to the characteristics of heavy load, high speed, and large inertia of hoisting equipment in ultra-deep mines, the periodic disturbance and winding error of the hoisting wire rope during the high-speed winding process will cause deformation and detuning of the wire rope hoisting system, resulting in abnormal tension of the hoisting wire rope. cause the system not to work properly. At present, in the do...

AI Technical Summary

Problems solved by technology

[0005] However, with this single pulley adjustment scheme, according to the provisions of the "Coal Safety Regulations", that is, the ratio of the diameter of the drum to the diameter of the thin steel wire rope is greater than or equal to a certain value (generally greater than or equal to 90), so as to control the bending stress of the steel wire rope in a safe manner. However, in order to increase the effective lifting load in ultra-deep well hoisting, it is necessary to increase the diameter of the main hoisting wire rope

To meet the above requirements, the diameter of the movable pulley will be doubled, resulting in an excessively large diameter of the movable pulley, which will increase the weight of the adjustment device and reduce the effective lifting load

If the effective diameter of the pulley is artificially reduced, the bending stress of the wire rope will increase, the phenomenon of bending fatigue will increase, and the life of the wire rope will be shortened

In addition, due to the large swing during the adjustment of the single-action pulley adjustment scheme, it is easy to generate a chute, and at the same time, the vibration during the adjustment process is strong, the impact resistance is weak, and there is no safety protection device, so the safety is poor

Images