Hub type independent wheel bogie

Abstract

The invention provides a hub type independent wheel bogie, and relates to the bogie used for high speed trains or urban rail transit vehicles. A framework of the hub type independent wheel bogie includes two symmetrically arranged side frames, a central cross beam and two side cross beams; the side frames are of an H-shaped welding structure, the upper portions of the side frames are provided withinstallation bases with air springs, and the end portions of the side frames are provided with installation bases used for installing braking callipers and installation bases with transverse oil-pressure shock absorbers; the central cross beams and the two side cross beams all adopt seamless steel tube structures; the two end portions of each side cross beam stretch out of the corresponding sideframe and used for installing a shaft box body; independent wheel sets are hung on the side frames of the framework through the shaft box body; the braking callipers are installed on the installationbases of the braking callipers on the end portions of the side frames of the framework; a sensor is installed on the lower portion of a vehicle body and located above the independent wheel sets. Air springs are installed on the installation bases of the air springs of the upper portions of the side frames of the framework; the transverse oil-pressure shock absorbers are installed on the installation bases of the transverse oil-pressure shock absorbers on the end portions of the side frames of the framework. The wheel bogie has the advantages that the structure is novel, processing is simple, the wheeltrack friction is small, the curve passing performance is good, and operation is smooth, steady, efficient and safe.

Description

technical field [0001] The hub-type independent wheel bogie of the present invention relates to a high-speed train or urban rail transit vehicle bogie. Background technique [0002] The existing bogies of high-speed trains and urban rail transit vehicles in my country are mainly composed of frame, wheel sets, axle box suspension devices, central springs, and foundation brake devices. The wheel set adopts the rigid wheel set with interference fit of the wheel and axle, the axle box spring adopts the inner support method, and the central spring is mainly composed of air spring and height control valve. [0003] The existing structure has the following problems: [0004] 1. The existing bogie adopts a rigid wheel set, which has serious serpentine motion, and the critical speed of the serpentine motion seriously inhibits the running speed of the vehicle; [0005] 2. When the existing bogie is in operation, the wear between the wheel and the rail is serious, and the curve passin...

AI Technical Summary

Problems solved by technology

It is used to solve the existing problems in the prior art: 1. The existing bogie adopts a rigid wheel set, which has serious serpentine motion, and the critical speed of the serpentine motion seriously inhibits the running speed of the vehicle; 2. When the existing bogie runs , the wear between the wheel and the rail is serious, and the curve passing performance is poor, etc.

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