Train hub steering self-correcting assembly

Abstract

The invention relates to the technical field of rail traffic, and discloses a train hub steering self-correcting assembly. The train hub steering self-correcting assembly comprises a sleeper which ispreinstalled on the ground surface, and a basic rail, an inner guide bent rail, an outer guide bent rail and a straight sharp rail which are conventionally arranged on the upper surface of the sleeper. An energy-dissipating gasket located on the surface of the sleeper is fixedly arranged at the joint of the inner guide bent rail and the straight sharp rail. By installing the energy-dissipating gasket at the joint of the straight sharp rail and the inner guide bent rail, an outer side rim of a train hub can be erected on the energy-dissipating gasket in advance during steering rail changing, the longitudinal pressure (energy-dissipating process) of the hub is counteracted through the elastic deformation of the energy-dissipating gasket, the longitudinal load of the hub is small when an inner side rim of the hub abuts against a forged section of the straight sharp rail, the abrasion to the forged section of the straight sharp rail is reduced, the service life of the forged section of thestraight sharp rail is prolonged on one hand, it can be ensured that the train hub can be prevented all the time from suspending and jolting on the other hand, the train taking experience of passengers is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train hub steering self-correcting assembly. Background technique [0002] For the structure of the train track at the turnout, please refer to figure 1 , the principle of train lane change: wherein the end of the inner curved rail 3 is connected with the switch, and the wheel hub of the train is changed through the hidden tip-type switch rail on the switch to make it drive on the inner curved rail 3 , and then through the guidance of the inner curved rail 3 and the outer curved rail 4, the train hub is redirected to the process on the basic rail. [0003] The structure of the straight point rail 5 is that the ends of two straight rails are welded together and forged. On the switch rail 5, in order to ensure that both sides of the train turn to normal, a certain gap needs to be left in design between the end of the straight switch rail 5 and the inner guide curved rails ...

AI Technical Summary

Problems solved by technology

[0004] When the inner rim of the train wheel hub transitions from the inner curved rail 3 to the straight point rail 5, there will be a short suspension time, and it will overlap the forged end of the straight point rail 5 from top to bottom. This phenomenon will bring bumps to the train and affect the experience of riding. At the same time, the end of the straight point rail 5 itself is formed by forging. The depth becomes deeper, which will further aggravate the bumps of the train

[0005] Simultaneously because there is a certain centrifugal force when the train turns, the outer rim of the wheel hub of the train will form an extrusion force on the side of the forged end of the straight point rail 5, and the extrusion marks on the side of the forged end of the straight point rail 5 will become larger. It will cause indentation, which will make the side of the forged end form a stepped surface, and the outer rim of the hub will easily climb to the top of the straight point rail 5 through the indentation. Serpentine movement will aggravate the bumps of the train, and in severe cases, it will cause the train to derail and seriously affect the normal steering of the train.

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