Intermediate hinged shaft device for medium-low speed maglev turnout junction girder

Abstract

The invention provides an intermediate hinged shaft device for a medium-low speed maglev turnout junction girder. The device comprises a lower pressure-bearing plate (7), a hinged shaft (9) and an upper pressure-bearing sleeve (10), wherein a hinged shaft support (4) is fixed above the lower pressure-bearing plate (7); the lower end of the hinged shaft (9) is inserted onto the hinged shaft support (4); the upper pressure-bearing sleeve (10) is sleeved at the upper end of the hinged shaft (9); and the upper end of the upper pressure-bearing sleeve (10) is fixedly connected with a turnout junction girder (11). The device has the advantages that: 1, the turnout junction girder is supported and centered; 2, longitudinal force when a maglev vehicle passes through the turnout junction girder can be borne; and 3, vertical force transmitted by the turnout junction girder can be borne, vertical and upward degree of freedom of the turnout junction girder is not limited, the turnout junction girder and an intermediate support are prevented from being broken due to over deformation of the turnout junction girder, and the structure of the turnout junction girder requiring integral rotation can be used.

Description

technical field [0001] The invention belongs to the technical field of turnout design for medium and low speed maglev transportation systems, and in particular relates to an intermediate hinge shaft device for medium and low speed maglev turnout beams. Background technique [0002] Because of the advantages of safety, comfort, strong climbing ability and low noise, medium and low-speed maglev transportation has broad development prospects as a new urban rail transit mode. The closest existing technology to the present invention is the tail shaft device used in the low-speed maglev turnout of the Tangshan test line. The turnout beam is connected with the tail shaft through a connecting rod. At the same time, when the maglev vehicle passes the turnout beam, its longitudinal force is transmitted to the tail shaft through the turnout beam and the connecting rod. Although this turnout tail shaft device can center the turnout beam and bear the effect of longitudinal force, it sti...

AI Technical Summary

Problems solved by technology

Although this turnout tail shaft device can center the turnout beam and bear the effect of longitudinal force, it still has some functional defects: one is that it cannot bear the vertical force; At the same time, it does not restrict the vertical upward freedom

Obviously this kind of device cannot be used as the support of the beam body. The design cannot meet the requirements when the beam body is very long and the rigidity of the beam body is not enough. It is necessary to increase the intermediate support and the beam body needs to rotate.

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