Turnover turnout for rail transit

Abstract

The invention relates to a turnover turnout for rail transit. The turnover turnout comprises a plurality of turnout sections, and each turnout section comprises a rail beam group, a supporting cross beam, a turnover mechanism and a locking supporting mechanism. The rail beam group comprises rail beams respectively fixed on a plurality of side surfaces of the supporting cross beam, the supporting cross beam is fixed at the end part of the rail beam group, the turnover mechanism and the locking supporting mechanism are fixed on the ground, the turnover mechanism comprises a rotating shaft and is connected with the supporting cross beam through the rotating shaft, and the locking support mechanism comprises a locking shaft. The locking shaft is clamped with a lock pin hole in the supporting cross beam so as to lock the supporting cross beam and the turnover mechanism, the supporting cross beam is rotated, the rail beam groups of the turnout sections are connected to form a straight line or a curve line, and line changing of a train is achieved. Compared with the prior art, the turnover turnout has the advantages that the main beam is prevented from bearing elastic lateral bending stress, a sound rail curve shape is guaranteed, and the train can comfortably pass through the turnout.

Description

technical field [0001] The invention belongs to the field of rail transportation, and relates to a turnout for changing lines of rail transportation vehicles, in particular to a turnout suitable for traffic systems such as high-speed maglev transportation, low-speed maglev transportation, light maglev transportation and single-track orbiting operation. Background technique [0002] One of the main characteristics of high-speed maglev transportation, medium-low speed maglev transportation and monorail transportation is that the vehicles run around the track. For the above-mentioned traffic system, the turnout structure that provides support and guidance for vehicles includes not only the track, but also the main girder supporting the track. In order to connect different train lines, the turnout track structure mainly realizes the function of connecting different line positions through two types of integral elastic side bending and segmental straight quasi-curving. [0003] T...

AI Technical Summary

Problems solved by technology

Its disadvantages are: when the main beam of the turnout is switched between different line positions, it bears a large bending stress, and there is a risk of fatigue; moreover, because the main beam of the turnout needs elastic side bending, its lateral stiffness is small, and it is prone to torsional vibration

Its disadvantages are: the alignment of the curve position is achieved by straight-like curves. When there are only a limited number of beam sections, the bending angle between the beams is large, and the alignment of the track is not smooth enough, so the stability of the train passing and the ride comfort are not good.

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