Bogie frame and side beam thereof

Abstract

The invention discloses a side beam of a bogie frame. The side beam of the bogie frame comprises a side beam body and a buffering piece. The buffering piece comprises a first-level buffering piece and a second-level buffering piece. A cross beam installation base is arranged in the middle of one face, used for being matched with a cross beam, of the side beam body. A first-level installation base used for installation of the first-level buffering piece is arranged on one face, opposite to a supporting piece, of the side beam body. A second-level installation base used for installation of the second-level buffering piece is arranged on one face, opposite to a vehicle body, of the side beam body. The side beam body is made of a carbon fiber composite. The density of the carbon fiber composite is obviously smaller than that of a steel material, but the strength of the carbon fiber composite is 7-9 times as large as that of the steel material, so that the bogie frame made of the carbon fiber composite can not only meet the bearing requirement of the side beam but also greatly reduce the overall weight of a bogie, and the bogie frame can meet the requirement of high-speed railway vehicles. The invention further discloses the bogie frame with the side beam.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of bogies for urban rail vehicles and EMUs, in particular to a bogie frame and side beams thereof. Background technique [0002] The bogie is one of the most important components in the rail vehicle structure. The bogie on the vehicle can increase the carrying weight of the vehicle, increase the running speed of the train, and ensure that the car body is reliably located on the bogie under normal operating conditions. , buffer vibration, improve train comfort, etc. [0003] At present, with the speeding up of my country's railways, more and more rail vehicles have adopted welded bogie frames to replace the original three-piece bogie frames. A typical welded bogie frame mainly includes beams, and fixedly connected bogie side beams, and mounting seats for various components arranged on the cross beams and bogie side beams, wherein the two bogie side beams connected to the two ends of ...

AI Technical Summary

Problems solved by technology

[0005] With the continuous advancement of technology, high-speed rail vehicles require bogies to meet multiple performance indicators such as high speed, heavy load, light weight, and low noise. However, the beams and side beams of the welded bogie frame are all steel structural components, which is As a result, the overall weight of the bogie is relatively large, which is not conducive to the development of the bogie in the direction of light weight. At present, the primary buffer spring and the secondary buffer spring in the bogie are metal coil springs. It will make a lot of noise, which is not conducive to the development of bogies in the direction of low noise

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