Crane span structure assembly device

Abstract

The invention discloses a crane span structure assembly device. The crane span structure assembly device comprises a first supporting frame which is fixedly arranged and a slide mechanism which is positioned at one side of the first supporting frame; at least two first positioning frames are mounted on the first supporting frame in a sliding manner; a second supporting frame which move towards the first supporting frame is arranged on the slide mechanism; the second supporting frame is arranged on the slide mechanism, and is parallel to the first supporting frame; and at least two second positioning frames are mounted on the second supporting frames in a sliding manner. According to the crane span structure assembly device disclosed by the invention, two end beams can be quickly positioned by virtue of the first positioning frames and the second positioning frames, so that time is saved, and pre-mounting working efficiency is improved; and moreover, the positioning precision, on the two end beams, of the first positioning frames and the second positioning frames is high, so that combination precision of two beams and a main beam is effectively guaranteed, and therefore, quality of a crane span structure is guaranteed; and meanwhile, the device can realize pre-mounting of flowline production, and also promotes improving production efficiency of a bridge crane. Besides, the device can be used for pre-mounting crane span structures of various specifications of the cranes.

Description

technical field [0001] The invention relates to a bridge assembly device. Background technique [0002] As we all know, the bridge cranes used in the workshop all include a bridge frame 8, which is provided with a hoisting mechanism. Roller 83 is installed, the specific structure can be found in figure 1 . [0003] In order to ensure the installation accuracy, installation effect and various technical indicators during on-site installation, at this stage, manufacturers who produce bridge cranes need to pre-install (mainly for the installation of the end beam 81 and the main beam 82). At present, the pre-installation process Yes: hoist one of the end beams 81 to the specified position with the help of hoisting equipment, then measure the horizontality and verticality of the end beam 81, and then position the end beam 81 by means of spot welding with the help of angle steel and other components, and place the end beam 81 after positioning The other end beam 81 is hoisted, a...

AI Technical Summary

Problems solved by technology

[0005] 1. It will take a lot of time to measure, resulting in low efficiency of pre-installation work;

[0006] 2. This method is suitable for manufacturers of bridge cranes produced in small batches. For manufacturers of bridge cranes produced in large quantities, pre-installation should be a streamlined operation, so this method cannot meet the requirements of pre-installation;

[0007] 3. The pre-installation process of the bridge frame is completely controlled manually (especially the measurement process part), and the combination accuracy of the beams 81 at both ends and the main beam 82 is difficult to guarantee, which in turn affects the quality of the bridge frame 8

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