Anti-sway device for crane, control method of anti-sway device, and crane

Abstract

The invention discloses an anti-sway device for a crane, a control method of the anti-sway device, and the crane. The anti-sway device comprises a trolley frame, a lifting appliance and an anti-sway device body; the anti-sway device body comprises a drum, a motor, a first translation device, a second translation device, a first movable pulley, a second movable pulley, a fixed pulley, a first anti-sway steel wire rope and a second anti-sway steel wire rope, wherein the first translation device and the second translation device are arranged on the two sides of the drum and can relatively move, the first movable pulley and the second movable pulley are fixed to the two translation devices correspondingly, and the fixed pulley is mounted on the lifting appliance; the two anti-sway steel wire ropes are wound around the drum, extend out from the two opposite sides of the drum to sequentially bypass the movable pulleys and the fixed pulley and then are fixed to the trolley frame; and an anti-sway controller controls the first translation device and the second translation device to move face to face or back to back so as to adjust the distance between the first translation device and the second translation device. If torsion occurs in the operation process of the lifting appliance, by adjusting the translation devices in the anti-sway device in the torsion direction, the horizontal component of the anti-sway steel wire ropes in the torsion direction is changed, and the active anti-sway effect of the lifting appliance is achieved based on the horizontal component.

Description

technical field [0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a crane anti-sway device, a control method thereof and a crane. Background technique [0002] In recent years, with the rapid development of container logistics, large ships have become the main ship types of the world's ocean trunk lines. The large-scale ship puts forward higher requirements on the loading and unloading efficiency of the port. [0003] At present, there is still a big gap between the loading and unloading efficiency of ports in various countries and the efficiency requirements of ships, and the main bottleneck restricting the operation efficiency is the loading and unloading of the main spreader of the bridge crane with the most complicated working conditions. The current design capacity of the bridge crane is about 45-50 natural containers per hour, while the actual average operating efficiency of the port is 28-30 natural containers. Th...

AI Technical Summary

Problems solved by technology

[0005] The present application provides a crane anti-sway device and its control method and the crane, which solve the technical problem of low efficiency of the existing bridge crane operation

Images