A multi-rope cooperative control system and method for an ultra-deep mine hoist

Abstract

The invention provides an ultra-deep mine hoist multi-rope cooperative control system and method, and belongs to a hoist multi-rope control system and method. An output shaft of each variable frequency motor is connected with a hoist winding drum, a variable frequency motor controller is connected with the variable frequency motors, each steel wire rope is connected between the corresponding hoist winding drum and a container, a servo hydraulic cylinder is arranged on the path, between the corresponding hoist winding drum and the container, of each steel wire rope, a servo hydraulic cylinder control system is connected with the servo hydraulic cylinders, the top of each servo hydraulic cylinder is connected with a hoisting sheave through a hinge support, each steel wire rope is connected with a tension and pressure sensor, and the container is connected with a position-posture-angle sensor; the servo hydraulic cylinders are connected with proportional servo valves, and the input port of each proportional servo valve is connected with an energy accumulator, an overflow valve, a one-way valve and a stop valve at the same time; the servo hydraulic cylinder control system is provided with a wireless receiver, the position-posture-angle sensor and the tension and pressure sensor are provided with wireless emitters, the position-posture-angle sensor feeds back position and posture conditions of the container and adjusts stretching out and drawing back of the hydraulic cylinders, and the situation that the container is inclined due to the fact the steel wire ropes move in a non-synchronous mode is avoided.

Description

Technical field: [0001] The invention relates to a hoist multi-rope control system and method, in particular to an ultra-deep mine hoist multi-rope cooperative control system and method. Background technique: [0002] At present, as my country regards the development of deep resources as an important development strategy, large-scale hoisting equipment for ultra-deep mines has become the key equipment to realize the development of deep resources. Traditional single-rope winding hoists and multi-rope friction hoists Increased effective load rate, lifting efficiency, safety, etc. decline rapidly and cannot be used for ultra-deep well lifting. The multi-rope winding hoist has the characteristics of the first two hoists and has been applied in the field of ultra-deep well hoisting. During the operation of the equipment, there will inevitably be a tilting phenomenon of the container caused by the asynchronous movement between the steel wire ropes; in addition, due to the vibratio...

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Problems solved by technology

[0002] At present, as my country regards the development of deep resources as an important development strategy, large-scale hoisting equipment for ultra-deep mines has become the key equipment to realize the development of deep resources. Traditional single-rope winding hoists and multi-rope friction hoists Increased effective load rate, lifting efficiency, safety, etc. will decline rapidly and cannot be used for ultra-deep well lifting

The multi-rope winding hoist has the characteristics of the first two hoists and has been applied in the field of ultra-deep well hoisting. During the operation of the equipment, there will inevitably be a tilting phenomenon of the container caused by the asynchronous movement between the steel wire ropes; in addition, due to the vibration and impact during the operation, the tension difference between the steel wire ropes will increase sharply, resulting in the lifting system not working normally, and even causing broken ropes, etc. Major accident

If the container is tilted and stopped for correction, the work efficiency will be greatly reduced

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