Four-winding-drum hoisting mechanism and container crane

Abstract

The invention discloses a four-winding-drum hoisting mechanism and a container crane. A first winding drum, a second winding drum, a third winding drum and a fourth winding drum are arranged on a trolley. A first fixed pulley, a second fixed pulley, a third fixed pulley and a fourth fixed pulley are arranged on the trolley. A first movable pulley block, a second movable pulley block, a third movable pulley block and a fourth movable pulley block are arranged on a hoisting appliance. A first steel wire rope is drawn out from the first winding drum and wound on the first movable pulley block and the first fixed pulley. A second steel wire rope is drawn out from the second winding drum and wound on the second movable pulley block and the second fixed pulley. A third steel wire rope is drawn out from the third winding drum and wound on the third movable pulley block and the third fixed pulley. A fourth steel wire rope is drawn out from the fourth winding drum and wound on the fourth movable pulley block and the fourth fixed pulley. According to the four-winding-drum hoisting mechanism and the container crane, the hoisting appliance can incline forwards, backwards, leftwards and rightwards, rotate and stably hoist by means of the differential control over the four winding drums, and driving anti-swing and driven swing reduction can be achieved. In addition, the stress of the hoisting mechanism is optimized, the total weight of the trolley is decreased, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of cranes, in particular to a four-drum lifting mechanism and a container crane. Background technique [0002] The lifting mechanism of the crane is the mechanism that realizes the lifting movement of the container and the spreader, and is the most important working mechanism in the container crane. The driving device of the lifting mechanism is generally set on the trolley, and a single-drum lifting mechanism is often used. The disadvantages are: 1. There are many pulleys that the wire rope bypasses, and the number of bending times during the work process reduces the life of the wire rope. And because the number of each steel wire rope is different, so the life-span of each steel wire rope is also different, has increased maintenance workload, and may cause waste. 2. The deflection angle of the steel wire rope entering and leaving the drum is too large, almost reaching the limit range specified by the design and man...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention proposes a hoisting mechanism of a crane and a container crane to solve the problems that the existing hoisting mechanism cannot realize rotation, tilting and anti-rolling

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