Stepless-adjustment ball-hinge type multi-support-leg forward transverse shifting track system of bridge girder erection machine

Abstract

The invention relates to a stepless-adjustment ball-hinge type multi-support-leg forward transverse shifting track system of a bridge girder erection machine. The track system comprises a forward transverse shifting track of the bridge girder erection machine. The track system is characterized in that a plurality of components are fixedly mounted at the lower end surface of the forward transverse shifting track of the bridge girder erection machine; the number of the components is determined through the length of the forward transverse shifting track of the bridge girder erection machine or the stress change of the forward transverse shifting track of the bridge girder erection machine; the components are arrayed at intervals each other; the components comprise bearing accessories, adjusting devices and an anti-incline base; the adjusting devices are used for stepless adjustment in the vertical direction, so that the forward transverse shifting track of the bridge girder erection machine is kept horizontal. According to the track system disclosed by the invention, a standardized structure can be formed. Compared with a conventional track formed by stacked railway sleepers, the track system disclosed by the invention needs a short disassembly time; when the forward transverse shifting track system of the bridge girder erection machine is assembled or disassembled, onerous operation is omitted; besides, the forward transverse shifting track system of the bridge girder erection machine is safe and firm, and the number of parts is significantly reduced, so that materials are saved, the cost is reduced, and the track system can be repeatedly used. The track system disclosed by the invention has remarkable superiority in safety, is environmental-friendly, saving and convenient.

Description

technical field [0001] The invention relates to a brand-new integrated bridge erecting machine front traverse that replaces the traditional sleeper type bridge erecting machine front traverse track and uses multi-point stepless adjustable screw legs, ball joints and rubber bearings as support pads. track system. Background technique [0002] In recent years, my country's highway infrastructure has developed rapidly. A large number of highways, especially high-grade highways, are under construction or planned to be constructed. A large number of bridges are used to cross valleys and rivers, and most of the bridges are prefabricated and then transported to the site for erection and installation to ensure the construction quality of the bridges. Most of these bridges are erected with double-guided girder erecting machines. [0003] The front traversing track of the double guide girder bridge erecting machine is placed on the front pier cover beam, and its lower support pad str...

AI Technical Summary

Problems solved by technology

Due to the poor integrity and stability of the sleeper pier, the large-height pier is even worse.

When erecting beams, the sleeper pier is easy to be damaged and collapsed due to insufficient supporting strength or poor stability, and scattered pier, which leads to the collapse of the bridge erecting machine. There are no cases nationwide

On the other hand, the sleeper buttress is used as the support structure for the traversing track in front of the bridge erecting machine. The structure is not standardized, and there are great human factors and hidden dangers in the stacking quality of the sleepers, and the stacking speed is slow.

When one span of the bridge is installed and then the next span is installed, it is necessary to disassemble each sleeper pier and transport it to the next cap beam for re-stacking and stacking, which takes a long time

To sum up, the traditional method of using sleeper buttresses to support the front traverse track of the bridge erecting machine has poor safety, low work efficiency and backward methods

[0004] In the existing technology, it is difficult to implement standardization of cross-rail buttresses, and there are defects such as irregular stacking, insufficient safety, low degree of mechanized operation, slow work progress, and high construction costs.

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