Tyre girder carrier suitable for single and double track girders and limited space channels

Abstract

The invention discloses a tyre girder carrier suitable for single and double track girders and limited space channels, and belongs to the field of bridge machinery. The girder carrier has a four-girder structure consisting of two outer girders and two inner girders symmetrically; bottom surfaces of the outer girders and the inner girders are provided with a pair of L-shaped steel transversing slide rails; and a flange slide block having double functions of a slide block and a connecting piece is matched in the slide rails, can be independently connected with a wheel component to drive the wheel component to slide in the slide rail between the outer girders and the inner girders, and also can fixedly connect the wheel component to the lower sides of the selected outer girders or inner girders to shift. The relative height of the two inner girders is lower than that of the two outer girders, and a girder transporting trolley is settled on the rails of the inner girders at a low level, namely the self height of the girder carrier is reduced, so that the girder carrier can efficiently and freely meet the transportation requirements of adapting to the single and double track girders and passing through the limited space channels.

Description

technical field [0001] The invention relates to a tire-type beam-carrying vehicle adapted to single- and double-line beams and limited-space passages, belonging to the field of bridge machinery. Background technique [0002] With the rapid development of my country's high-speed railway and intercity transportation construction, the construction method of using tire-type beam trucks to transport prestressed simply supported box girders is becoming more and more extensive, and the functional requirements for tire-type beam trucks are also getting higher and higher. . [0003] The current tire-type beam transport vehicles all adopt the central single main girder structure. The beam trolley is arranged on the main beam track, and the prestressed simply supported box girder transported by the beam transport vehicle is placed on the beam trolley. The wheelbase of this beam transporter is the same as the web center distance of the single-line beam or double-line beam to be transpor...

AI Technical Summary

Problems solved by technology

[0003] The current tire-type beam transport vehicles all adopt the central single main girder structure. The beam trolley is arranged on the main beam track, and the prestressed simply supported box girder transported by the beam transport vehicle is placed on the beam trolley. The wheelbase of this beam transporter is the same as the web center distance of the single-line beam or double-line beam to be transported, that is, the wheelbase is relatively fixed. Therefore, there are two disadvantages in the existing tire-type beam transporter: first, because the beam transporter The wheelbase is either the same as the center distance of the web of the single-line beam or the center distance of the web of the double-line beam. Transformation, the scope of adaptation is narrow; second, the existing tire-type beam transport vehicle has a central single main beam structure type, and the beam trolley is configured on the main beam track, resulting in the inherent defect of a higher body of the beam transport vehicle. The body of the beam truck is relatively high. After loading the load, the body of the beam truck must be higher, which not only reduces the lateral stability of the beam truck, but also makes it difficult to pass through a restricted space such as a tunnel due to its height limit.

Undoubtedly, this greatly affects the adaptability of the beam transport vehicle to the types of beam transport and limited space passages, which cannot meet the needs of the rapid development of bridge construction

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