Modular rail of large displacement telescopic device for medium and low speed maglev bridges

Abstract

The invention discloses a modular rail row of a large displacement expansion device of a medium-low speed maglev bridge, wherein, an end rail row structure and a support of the expansion device are respectively arranged on the beam tops of two beam ends of adjacent rail beams; Between that support of the telescopic device, a simple supporting small longitudinal beam is arrange, one end of which isrotatable and the other end of which is rotatable and slidable; The upper end of the simple supporting small longitudinal beam is slidably provided with a modular telescopic rail row through a longitudinal beam sliding device; The modular telescopic rail consists of several rail subunits, and the end rail structure of rail beam adopts a large number of common structures. The rail beam of the railrow sub-unit and the rail row structure of the terminal end are provided with a lateral moving device; A link device is arrange between two adjacent rail row sub-units and between that rail row structure and the end end of the rail row, and the two end of the link device are connected with a lateral moving device. The invention solves the problem that the I-type, II-type and III-type F rail expansion joints cannot adapt to the large displacement expansion and contraction of the track beam, and is suitable for the large displacement expansion and contraction of the long-span track beam or thelong-link continuous track beam.

Description

technical field [0001] The invention belongs to the field of medium- and low-speed maglev rail transit, and in particular relates to a modular rail row of a large-displacement telescopic device for a medium-low-speed maglev bridge. Background technique [0002] The medium and low-speed maglev rail transit adopts the suspension and guidance technology of the constant electromagnet suction type, and realizes the suspension and guidance of the vehicle through the electromagnetic attraction between the U-shaped electromagnet on the vehicle suspension frame and the F-shaped rail. At present, the middle and low speed maglev track beam structure and track structure are divided into two parts. The track structure is laid on the top of the concrete track beam. , The expansion and contraction of the track structure. [0003] At present, there are conventional slotted track joints for medium and low-speed maglev transportation (including type I, type II, and type III expansion joints)...

AI Technical Summary

Problems solved by technology

[0011] Aiming at at least one of the above defects or improvement needs in the prior art, the present invention provides a modular rail row of large displacement telescopic devices for medium and low speed maglev bridges. The joint cannot adapt to the problem of large-displacement expansion and contraction of track beams, and is suitable for large-displacement expansion and contraction of large-span track beams or long-connected continuous track beams

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