Cushioned connection joints for f-rails

Abstract

The invention discloses a buffer type connector for an F-shaped steel rail.The connector comprises a lower connecting plate and a limiting boss.The lower connecting plate is used for being arranged on the lower surfaces of wing plates.The limiting boss is arranged on one side face of the lower connecting plate in a protruding mode.The surface of the protruding end of the limiting boss is a plane.The wing plates of the F-shaped steel rail are each correspondingly provided with a vertical-through groove matched with one end of the limiting boss.A long-strip-shaped gap formed by the through grooves of the two opposite wing plates and the gap between the two through grooves is used for allowing the limiting boss on the lower connecting plate to be inserted therein.Connecting pieces penetrate through connecting holes to fixedly connect the lower connecting piece with the wing plates, so that the limiting boss penetrates through the long-strip-shaped gap, the surface of the protruding end of the limiting boss is flush with the upper surfaces of the wing plates, the side face of the limiting boss makes complete contact with the inner walls of the through grooves in the wing plates, and then F-shaped steel rail connection is achieved.According to the connector, it can be ensured that a wheel is not disengaged from the wing plates all the time, impact of the rail gap on the walking wheel can be completely avoided, and meanwhile additional high-difficulty machining and strength or performance weakening do not need to be carried out on the structure of the F-shaped steel wing plates.

Description

technical field [0001] The invention belongs to the technical field of medium and low-speed magnetic levitation track structures, and in particular relates to a connection joint for F-shaped steel rails, which is suitable for the connection between rail rows of medium and low-speed magnetic levitation tracks. 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 structure of the medium and low speed maglev track mainly adopts the steel sleeper type. The track mainly includes induction plates, F-shaped steel rails (also called F rails), expansion joints, connectors and fasteners, steel sleepers, fastener systems, and bearings from top to bottom. It is composed of rail p...

AI Technical Summary

Problems solved by technology

However, the above-mentioned connecting structure still has a limited limit on the lateral limit of the rail row. In particular, the wings are set in a "step" shape so that some of the wheels will still be located in the gaps, resulting in insufficient stability of the wheels, and the above-mentioned "step" type The structure requires machining of complex shapes on the end face of the rail, and it is necessary to ensure that the contact surface dimensions of the guide rails at both ends are precisely matched. It is difficult to process, high in cost, and low in installation efficiency. Difficult to process, but also cause huge waste of materials

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