Lifting mechanism for storage yard container crane

Abstract

The invention discloses a yard container crane heize device, which is characterized by the following: the double side of the heize device installs two cable drums connect to the decelerator; the central bearing of the two cable drums are fixed on both extremities of supporting rack; the armored rope on the surface of cable drum is the symmetrical double end arrangement; the lower part of the two cable drums (4,5) installs sling boarding or sling; two blocks are installed on the sling boarding or the two extremities of the sling; the double armored rope on the surface of cable drum cross the corresponding block directly; the whole device is placed in the middle of the small car frames, which uses the sling central lines as baseline; the armored rope crosses from the small car frame to sling top sheave; the motor activation decelerator takes the sling up and down by armored rope twisting on the double-drum. The invention improves the mechanical efficiency of the whole device, which reduces the cost.

Description

Technical field: [0001] The invention relates to a container crane, in particular to a lifting mechanism for a container crane in a storage yard. Background technique: [0002] In the traditional design of container crane trolley arrangement, single-drum lifting mechanism is often used, and its disadvantages are: [0003] 1. There are many pulleys passed by the steel wire rope, and the bending times are many during the working process, which reduces the life of the steel wire rope. Moreover, because the number of pulleys passed by each steel wire rope is different, the life of each steel wire rope is also different, which increases the maintenance workload and may cause waste. [0004] 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 manufacturing standards, resulting in excessive wear of the steel wire rope and shortening the life. The higher the lift height the more seri...

AI Technical Summary

Problems solved by technology

[0003] 1. There are many pulleys passed by the steel wire rope, and the bending times are many during the working process, which reduces the life of the steel wire rope. Moreover, because the number of pulleys passed by each steel wire rope is different, the life of each steel wire rope is also different, which increases the maintenance workload and may cause waste

[0004] 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 manufacturing standards, resulting in excessive wear of the steel wire rope and shortening the service life. Moreover, due to the excessive wear of the steel wire rope, the rope groove of the drum is easy to be sharpened

[0005] 3. The weight of the trolley is unbalanced, which will cause the problem of unbalanced loading of the trolley

[0006] 4. The arrangement on the trolley frame is cramped and crowded, which is not conducive to maintenance

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