Ultra-low double girder crane with large used space

Abstract

The invention relates to an ultra-low double girder crane with a large used space. The ultra-low double girder crane with the large used space comprises an end beam. Lifting platforms are arranged on positions, close to two ends, on the lower surface of the end beam; wheel carriers are connected to the lower surfaces of the lifting platforms through turn tables; walking wheels are arranged in the wheel carriers; a drive device A is connected onto each walking wheel; the walking wheels are arranged on an upper step surface of an I-shaped cart guide rail; supporting wheels are arranged under the walking wheels on the wheel carriers, and are arranged on the lower surface of the upper step surface of the cart guide rail; two mutually parallel girders are connected onto the inner surface of the end beam, and adopt a 'U'-shaped structure; trolley walking rails are arranged on the upper surfaces of the girders; trolley walking mechanisms are arranged on the trolley walking rails; each trolley walking mechanism is formed by an upper walking wheel and a lower walking wheel; a drive device B is connected onto each trolley walking mechanism; the trolley walking mechanisms are arranged on hanging plates; and the hanging plates are fixed to two sides of a trolley frame. The ultra-low double girder crane with the large used space provided by the invention is adjustable in girder height, convenient to maintain and use, and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of cranes, in particular to a double-girder crane, in particular to an ultra-low double-girder crane with large usable space. Background technique [0002] The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated sides on both sides, which can make full use of the space under the bridge frame to lift materials without being hindered by ground equipment. The universal bridge crane has the advantages of large bearing capacity and good stability. It is widely used in various types of workshops, workshops and warehouses. For double-girder bridge cranes, the main girder is generally installed on the upper surface of the end girder, and then a walking trolley is installed on the main girder, and the lifting The mechanism is installed on the upper surface of the trolley, which leads to a larger overall height of the crane, which affects the lifting height of the crane and brings...

AI Technical Summary

Problems solved by technology

[0002] The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated sides on both sides, which can make full use of the space under the bridge frame to lift materials without being hindered by ground equipment. The universal bridge crane has the advantages of large bearing capacity and good stability. It is widely used in various types of workshops, workshops and warehouses. For double-girder bridge cranes, the main girder is generally installed on the upper surface of the end girder, and then a walking trolley is installed on the main girder, and the lifting The mechanism is installed on the upper surface of the trolley, which leads to a larger overall height of the crane, which affects the lifting height of the crane and brings inconvenience to the ground operations in the factory building. Moreover, the lifting height of the existing bridge cranes is generally fixed. It is impossible to adjust according to the actual situation of different workshops, and it is inconvenient to maintain and use; therefore, it is very necessary to provide an ultra-low double-girder crane with low overall height, adjustable lifting height, and convenient use.

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