Bridge crane

Abstract

The invention provides a bridge crane which is not easily limited by the plant height. The bridge crane comprises two main beams and a trolley and is characterized in that the two main beams are symmetric to each other, and the opposite inner sides of the two main beams are set as steps; and a track of the trolley is arranged on the upper end surfaces of the steps. In the invention, the trolley track is arranged on the inner sides of the main beams, the descending height of the trolley can be selected, and a trolley frame can be arranged completely according to traditional design; and the distance between the two main beams is adjusted in a plant, and the wheels of the trolley frame are placed on the track on the inner sides of the main beams so as to adjust the height of the trolley frame. With reduced overall height, the bridge crane provided by the invention can adapt to multiple plant environments, and the limit of the plant height is reduced.

Description

technical field [0001] The invention relates to a crane, in particular to a double-girder bridge crane. Background technique [0002] Universal bridge cranes are widely used in various types of workshops, workshops and warehouses due to their large carrying capacity and good stability. The hoisting mechanism is generally installed above the running trolley. Due to the neglect of the height limit of the top space in some factories, when installing the crane, they encountered the problem of interference between the crane trolley frame and the steel structure of the factory building, which could not meet the installation needs; if lowered The track height of the double-girder crane is installed, and the lifting height of the double-girder crane used is greatly lost, which brings great inconvenience to the user enterprise. [0003] It is very difficult to modify the structure of the factory building, and the workload is heavy. Therefore, this problem is solved by reducing the h...

AI Technical Summary

Problems solved by technology

The hoisting mechanism is generally installed above the running trolley. Due to the neglect of the height limit of the top space in some factories, when installing the crane, they encountered the problem of interference between the crane trolley frame and the steel structure of the factory building, which could not meet the installation needs; if lowered The installation of the track height of the double-girder crane will cause a large loss in the lifting height of the double-girder crane used, which will bring great inconvenience to the user enterprise

[0003] It is difficult to modify the structure of the factory building, and the workload is heavy. Therefore, through the structural transformation of the traditional general-purpose bridge crane, the height of the whole machine is reduced to solve this problem.

Images