MULTI-ROPE COOPERATIVE CONTROL SYSTEM AND METHOD FOR ULTRA-DEEP MINE HOISTER

摘要

A multi-rope cooperative control system and method for an ultra-deep mine hoister, belonging to multi-rope control systems and methods for hoisters. An output shaft of a variable frequency motor is connected with a hoister winding drum, a variable frequency motor controller is connected with the variable frequency motors; steel wire ropes are connected between the hoister winding drums and a container, there is a servo hydraulic cylinder on the path of each steel wire rope between the hoister winding drum and the container, a servo hydraulic cylinder control system is connected with the servo hydraulic cylinders, the top portion of the servo hydraulic cylinder is connected with a hoisting sheave through a hinge support, the steel wire rope is connected with a tension and compression force sensor, and the container is connected with a position/posture angle sensor; the servo hydraulic cylinder is connected with a proportional servo valve, and an input port of the proportional servo valve is connected with an energy accumulator, an overflow valve, a check valve and a stop valve simultaneously; the servo hydraulic cylinder control system is provided with a wireless receiver, and the position/posture angle sensor and the tension and compression force sensor are provided with wireless transmitters. The position/posture angle sensor feeds back the position and posture conditions of the container and the extension and retraction of the hydraulic cylinders are adjusted, thereby avoiding the situation where the container inclines due to asynchronous movement among the steel wire ropes.