Novel bogie

Abstract

The invention discloses a novel bogie which comprises an axle system, a driving device, a framework, a primary suspension system, a secondary suspension system, a foundation braking device and a central traction device. The driving device is driven by a permanent magnet direct drive motor and is connected with the axle system, the axle system is connected with the framework through a primary suspension system, the primary suspension system is positioned at the inner end of the axle system, the secondary suspension system is installed on the framework, the foundation braking device is installedon the framework, the braking end of the foundation braking device faces the axle system, and the central traction device is installed in an air spring of the secondary suspension system. According to the bogie, the permanent magnet direct drive motor is adopted for driving the system, and the design that an axle box body is internally arranged is adopted, so that a framework cross beam is shortened, the rigidity of the framework is increased, the dead weight is reduced, the central single air spring secondary suspension system is adopted, the dynamic performance is improved, the noise produced by a vehicle in operation is reduced, and curve wheel-rail abrasion can be relieved to a certain extent.

Description

technical field [0001] The invention relates to the field of bogies, in particular to a novel railway vehicle bogie. Background technique [0002] In the railway industry, the bogie is also called the running part. The "running part" refers to the part of the train that is responsible for guiding and carrying the car body along the line. It is one of the most important key components of rail transit vehicles. Legs have irreplaceable significance for the operation of rail transit vehicles. The safety and reliability of the bogie ensures the driving safety of the vehicle. Various parameters of the bogie directly determine the stability of the vehicle and the ride comfort of the vehicle. In order to better understand the concept of the "running part" of the vehicle based on the wheel-rail system, It is necessary to understand the functions of the running department: [0003] First of all, the carrying task is the most basic task of the travel department. As a means of transpo...

AI Technical Summary

Problems solved by technology

[0007] Most of the existing bogies are of the axle box external type. The bogies of this type have a large mass of wheel sets and frames, are difficult to pass through small-radius curves, and have poor adaptability to line twists, resulting in relatively poor ability to pass through small-radius curves. The wear of the wheel and rail leads to high operating costs; there is a phenomenon that the large unsprung mass causes large force and poor running performance of the wheel and rail; the mass between the springs is large, and the lateral impact on the bearing is also large

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