Steering rack for train carriage

Abstract

The invention relates to a steering bracket, in particular to a steering rack for a train carriage. The steering rack is characterized by comprising a girder, a framework which is in a shape like the Chinese character mu, a differential wheel pair and a dynamic steady rack, wherein, the dynamic steady rack is fixed on the girder by an end socket of the dynamic steady rack, the differential wheel pair is installed on the framework which is in a shape like the Chinese character mu, a steering shaft for the differential wheel pair is arranged on the end of the framework which is in a shape like the Chinese character mu, and the differential wheel pair comprises a half axle, wheels, an axial section brake disc and half axle bearings; and a shockproof spring is arranged on the framework which is in a shape like the Chinese character mu, the other end of the shockproof spring is connected with the girder, the steering shaft of the differential wheel pair is connected with a steering connecting rod by a steering shaft sleeve of the differential wheel pair, the steering connecting rod is connected with a transmission plate by a transmission plate shaft, and the transmission plate is fixedon the lateral face of the carriage. The invention has the advantages that the differential wheel pair is adopted, and an attack angle no longer exists between the rim of each wheel and a steel rail;during steering, the carriage no longer rubs a rail, adjacent carriages are connected by the steering racks of the invention, thereby reducing the overall weight of the train; and when passing through curves or turnouts, the carriages no longer shock.

Description

Train carriage bogie technical field The invention relates to a steering bracket, in particular to a railway carriage bogie. Background technique The development of rail transit has a history of 100 years. Since its birth, the left and right wheels of the vehicle have rotated synchronously, and the steering is guided by the force of the wheels and rails. The same is true for high-speed trains until now. Although it has a radial steering device or other devices, it cannot avoid a fundamental problem, which is also the biggest problem: when the train passes through a curve or a switch, there is an angle of attack between the wheel rim and the rail, and the left and right wheels The differential speed is also formed, so the friction of the wheels to the rails is very large, and the faster the train, the greater the friction. At the same time, the noise sent by the bogie when turning also pollutes the environment. There are many technical problems in the existing bogies, such...

AI Technical Summary

Problems solved by technology

Although it has a radial steering device or other devices, it cannot avoid a fundamental problem, which is also the biggest problem: when the train passes through a curve or a switch, there is an angle of attack between the wheel rim and the rail, and the left and right wheels The differential speed is also formed, so the friction of the wheels on the rails is very large, and the faster the speed of the train, the greater the friction. At the same time, the noise sent by the bogie when turning also pollutes the environment.

There are many technical problems in the existing bogies, such as: the bogie is more or less unstable due to serpentine motion, someone adds damping to the bogie, so that the bogie cabin is more stable, but the wheels and The friction of the wheel rim against the rail and the switch is increased

From the above summary, the existing bogies consume energy and greatly increase the maintenance costs of roads and vehicles, which cannot achieve the purpose of energy saving and emission reduction.

This series of problems has also directly affected the speed of the train and hindered the further development of rail traffic. The reason for this is that if the wheel seat of the wheel set is directly equipped with bearings, the bogie will be damaged when it encounters obstacles or the bearing mechanism In the event of faults such as dynamics, it is easy for the wheel to derail; moreover, the bearing at the wheel seat is easily damaged, because the wheel is subject to the normal pressure of the vehicle itself and the lateral force, so the axle seat cannot be installed. Bearings, wheel sets can only be existing synchronous wheels

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