F-type steel double-slit joint of low- and medium-speed maglev system

Abstract

The invention discloses an F-type steel double-slit joint of a low- and medium-speed maglev system. The F-type steel double-slit joint comprises two main F-type steel sections, an auxiliary F-type steel section and two press plates and more, wherein each main F-type steel section is provided with a first inner leg and a first outer leg, and the auxiliary F-type steel section is provided with a second inner leg and a second outer leg. The F-type steel double-slit joint of the low- and medium-speed maglev system is simple in structure, convenient to mount and easy to maintain.

Description

technical field [0001] The invention relates to the technical field of medium and low-speed maglev rail transit, in particular to an F-shaped steel double-slit connection joint of a medium-low speed maglev system. Background technique [0002] The track structure of the medium and low speed maglev system is mainly composed of a block rail row, a fastener system and a rail support platform. The rail row can be assembled on site or in the factory, and connected with the rail bearing platform poured on site through the fastener system. At the same time, in order to adapt to the deformation caused by the temperature change of the lower foundation and the rail row, expansion joints and expansion joints should be set between the rail rows The size should be non-zero at the highest temperature in history to ensure that there is no tension between the rail rows, and not exceed the structural rail gap at the lowest temperature in history to ensure the smooth operation of the train. ...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned connection joints can meet the connection requirements of the rail row, there are still some deficiencies in the process of use: ① Due to the boss setting at the position of the main F-shaped steel web, the length of the auxiliary F-shaped steel web is too short, causing the maglev train to pass through When connecting joints with double seams, the suspension detection device is prone to errors. In extreme cases, the collision between the induction coil and the induction plate will occur, which will affect the safety of driving; When the low-temperature limit buckle is tightened, the auxiliary F-shaped steel will be subjected to a large torque, which will affect the lateral smoothness of the track; ③When the maglev train is running with emergency support wheels, due to the It is a "one"-shaped seam, and the emergency support wheel is subjected to a great impact when passing through the seam, which affects the smoothness of the track and the life of the emergency support wheel

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