Port fixed slewing support crane

Abstract

The invention relates to the technical field of harbor cranes, and especially relates to a fixed rotary support type crane for harbors. The fixed rotary support type crane for harbors comprises a portal frame assembly, a rotating platform, a winching drum, a grab bucket and a first steel wire rope; the lower part of the portal frame assembly is connected with a rotation bench and a jib assembly, the rotating platform is arranged below the rotation bench, one end, far away the portal frame assembly, of the jib assembly is a free end, and the end of the free end is provided with a pulley group; one end of the first steel wire rope draws the grab bucket via the pulley group; the part, close to the pulley group, of the jib assembly is provided with multiple fixed pulleys, and the arrangement direction of the fixed pulleys extends from the pulley group to the central section of the jib assembly; and the first steel wire rope successively penetrates the pulley group on the jib assembly and the fixed pulleys and is wound at the winching drum. According to the fixed rotary support type crane for harbors, original friction of the steel wire rope to other equipment of the crane is changed into rolling slide, so that the wearing speed of the steel wire rope is reduced, and the service life of the steel wire rope is prolonged by one time.

Description

technical field [0001] The invention relates to the technical field of port cranes, in particular to a port fixed slewing support crane. Background technique [0002] Various iron-containing raw materials and some iron-containing paving materials used in the sintering plant come into the site, and are mainly transported to the wharf by ships, and then unloaded by port cranes to the conveyor belt, and then transferred to various designated locations. [0003] However, there are many problems in the actual use of port cranes: [0004] (1) Due to the friction between the main hoisting wire rope and the grab bucket wire rope and other equipment and facilities of the crane during the design and manufacture of the port crane, the parts of the equipment are severely worn, and the wire rope cannot reach the expected service life; [0005] (2) During the hoisting operation, the steel wire rope is likely to break suddenly, causing the crane cantilever to fall rapidly and hit the carg...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: in order to overcome the severe wear and tear of equipment parts in the prior art, the steel wire rope cannot reach the expected service life; the steel wire rope is prone to sudden strand breakage during the hoisting operation, causing the cantilever of the crane to fall rapidly, hitting the cargo ship or On the surrounding auxiliary equipment, many equipment accidents and personal injury accidents occurred; when the port crane was in operation, the driver could not see whether people entered the ladder intersection when operating, and there were many accidents of ladders crushing people

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