Abstract: Through long-term observation and analysis of the main shaft lifting system of an iron mine in Hebei,this paper finds that the unloading hydraulic station acts as a single cylinder acting on the straight rail of the bucket,and the bucket is pulled into the position to pull the ore.Due to the mixing of water materials,the density of the ore in the bucket causes the center of gravity of the bucket to shift.At the same time,the viscosity of the charcoal also increases the resistance to open the gate.In the process of lifting the bucket,it often hits the straight rail and can not open the door.phenomenon.In order to solve this problem,the technical improvement measures of the two-cylinder dual-motor are proposed,and the technical transformation is carried out to realize the synchronization of the two cylinders,which makes the opening and closing gates more rapid and stable,completely solves the problem of lifting and unloading,and improves the safe and continuous operation of the system.effectiveness.

Key words: Bucket unloading, hydraulic system, twin-cylinder synchronous deviation, technical transformation