Auxiliary fixing mechanism for cantilever stand column of gantry crane

Abstract

The invention discloses an auxiliary fixing mechanism for a cantilever stand column of a gantry crane. The auxiliary fixing mechanism comprises a crane body and a cantilever, wherein one end, away from the crane body, of the cantilever is fixedly equipped with a hoisting mechanism; the bottom end of the crane body is fixedly equipped with four supporting frames; and the bottoms of the supporting frames are provided with travelling cars. According to the auxiliary fixing mechanism disclosed by the invention, a first mounting frame, a first connecting rod, a supporting rod, a hydraulic telescopic pole, a second mounting frame, a second connecting rod and a supporting table are arranged, so that while the supporting rod works to shrink inwards, the supporting rod is movably hinged with the first connecting rod and the second connecting rod through a rotary shaft, and the first connecting rod and the second connecting frame are driven to move downwards towards one end away from the supporting frame while the supporting rod shrinks inwards, and therefore, the supporting rod moves downwards to fit to ground, the contact area between the device and ground is increased, auxiliary supporting is achieved on the supporting frames, and the stand column of the device is supported.

Description

technical field [0001] The invention relates to the technical field of portal cranes, in particular to an auxiliary fixing mechanism for the support of a cantilever column of a portal crane. Background technique [0002] The bridge is a boom-type crane that is supported on the ground track or foundation by the outriggers on both sides. It runs along the ground track, and can pass railway vehicles or other ground vehicles below. A boom-type crane with a rotatable lifting device mounted on a portal frame. The 4 legs of the gantry form 4 "door openings" through which railcars and other vehicles can pass. Most of the portal cranes run along the crane track on the ground or on the building to carry out lifting and loading operations. In order to maintain their mobility, most of the existing portal cranes are equipped with a trolley at the bottom of the column to facilitate the overall movement of the device. This has resulted in an insufficiently stable connection between the ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cantilever column support auxiliary fixing mechanism of a portal type crane to solve the problem that the existing portal type cranes proposed in the background technology are mostly equipped with a trolley at the bottom of the column in order to maintain its mobility. The overall movement of the device leads to the problem that the connection between the whole device and the ground is not stable enough

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