The invention discloses a reduction gearbox counterweight energy-saving
system for a
quay crane. The reduction gearbox counterweight energy-saving
system comprises a hoisting mechanism, a balance reduction gearbox, a balance drum, a counterweight steel
wire rope, a movable
pulley and a counterweight, and the hoisting mechanism comprises a motor, a hoisting drum and a hoisting reduction gearbox; the motor, the hoisting reduction gearbox and the hoisting drum are connected in sequence; the hoisting drum, the balance reduction gearbox and the balance drum are sequentially connected, one end of the counterweight steel
wire rope is wound on the balance drum, the other end of the counterweight steel
wire rope bypasses the movable
pulley and is fixedly connected with a
quay crane structure, the movable
pulley is fixedly arranged on the counterweight, and the torque of the counterweight acting on the balance drum is opposite to the torque of a
quay crane trolley lifting appliance acting on thehoisting drum. According to the
system,
electric equipment or operation parameters of the quay crane are not required to be reduced, the operation
energy consumption of the quay crane is reduced, thewinding structure of the counterweight steel wire
rope is simplified, meanwhile, the length of the hoisting drum is not required to be prolonged, and the service life of the hoisting drum is prevented from being influenced.