Subsection type railroad switch

A segmental turnout technology, applied in the field of rail transit systems, can solve problems such as gap width changes, impacts, and impacts on train passing stability

Active Publication Date: 2007-10-31
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although the above-mentioned joint plate can improve the passing and suspension performance of the train, and improve the impact of the misalignment movement between the beams on the hydraulic brakes and sliding wheels, because in the above-mentioned patent, the rectangular joint plate and the F rail braking surface of the adjacent beam The gap and the gap on the sliding surface of the sliding wheel are straight seams, so the brake pads on both sides of the same pair of hydraulic brakes and the rim of the sliding wheel pass through the gap at the same time, causing a large impact and affecting the smoothness of the train passing
In addition, in the case of using a rectangular joint plate, when the beam rotates, the gap width between the rectangular joint plate and the beam will change greatly, and even cause lateral displacement

Method used

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  • Subsection type railroad switch
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Embodiment Construction

[0029] Fig. 1 shows a circular arc joint plate 3 according to a preferred embodiment of the present invention. The circular arc-shaped joint plate 3 is arranged between the adjacent beams 1 and 2, and serves as a transitional intermediate rail between the two beam sections. Different from the prior art (such as US 5,199,674), the joint plate 3 of the present invention is arc-shaped.

[0030] As shown in Fig. 1, the arc-shaped joint plate 3 includes two F rails 4, 4', and a connecting piece 5 connecting the two F rails. Both ends of two F rails 4, 4' are arc-shaped, and the ends of the F rails adjacent to the arc joint plate 3 of beam 1 and beam 2 are also arc-shaped. When the switch is in a straight line position, the four arcs of the arc-shaped joint plate 3 and the four arcs of the beam 1 and the beam 2 form two concentric arc segments respectively. In this embodiment, three strip connectors 5 are provided, but one, two or more than three connectors may also be provided, a...

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PUM

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Abstract

The invention provides a segmented railroad switch, comprising an active beam and at least one inactive beam, while each beam is mounted with F track, and each beam is connected with each other via connectors, the nearby beams are arranged with a joint plate as transition and connected with nearby beams via connectors. The invention is characterized in that the joint plate is arc shaped comprising two joint plate F tracks, and the connectors connecting the F tracks, the end of the F track is arc shaped, while the end of the F track of each nearby beam is arc shaped. In straight state, the arc end of the F track of the joint plate and the arc end of the F track of the beam form two concentric arcs. The invention can effectively reduce the impact generated by hydraulic brake and bias moved beam, to stably move wheels.

Description

technical field [0001] The present invention generally relates to a rail transit system, and in particular to a segmental switch for a maglev transit system and / or a monorail transit system. Background technique [0002] In the low-speed maglev system of the normal-conducting linear induction motor, the two sides of the track beam are π-shaped steel ferromagnetic tracks that cantilever downward. The track and the track beam are connected by sleepers or pillars. The cross-section of the track is F-shaped, so it is also called F. rail. The F rail corresponds to the suspension guide magnet on the train, and its magnetic poles and electromagnets attract each other to make the train suspension rise to a certain height. The upper surface of the F rail is covered with an aluminum plate, which forms an induction armature corresponding to the stator core of the drive motor at the lower part of the train, conducts the induced current, generates an electromotive force in the forward d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B25/00E01B25/34
Inventor 宋德楠朱志伟袁亦竑曾国锋
Owner TONGJI UNIV
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