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Bogie for high-speed train and frame of bogie

A high-speed track and bogie technology, applied in the field of rail vehicles, can solve the problems of bogie air spring performance degradation, complex load conditions, and unfavorable light weight

Active Publication Date: 2015-05-27
CRRC QINGDAO SIFANG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the increase of train speed, the frame load conditions of high-speed rail trains (up to 500 kilometers per hour) become more complex, and the performance of the air spring in the bogie decreases, which cannot well achieve the vibration reduction effect at higher speeds.
[0010] Second, the connection between the existing anti-roll torsion bar seat and the frame is relatively complicated, and it is not conducive to the realization of light weight

Method used

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  • Bogie for high-speed train and frame of bogie
  • Bogie for high-speed train and frame of bogie
  • Bogie for high-speed train and frame of bogie

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Embodiment Construction

[0041] In order to solve the above technical problems, the core of the present invention is to provide a bogie frame with better vibration damping effect at high speed, which can better realize the vibration damping function of the air spring at high speed. Another core of the present invention is to provide a train bogie comprising the frame.

[0042] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] It should be noted that the orientation words "longitudinal" and "inner" appearing in this article are defined according to the structure of each part of the frame and the orientation of each part connected to each other, and "longitudinal" refers to the direction perpendicular to the beam 2 of the frame. Direction, that is, the direction parallel to the side beam 1 of the ...

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Abstract

The invention discloses a bogie frame which comprises side beams and a cross beam positioned between the side beams, wherein an air spring seat for mounting an air spring is arranged on each side beam; a main air chamber of the mounted air spring is positioned in an inner cavity of each side beam; the cross beam is of a hollow seamless steel tube structure; the frame also comprises a channel; the channel is used for communicating the main air chamber of each air spring with the cavity of the cross beam. According to the frame provided by the invention, the cavity of the cross beam is used as an additional air chamber of the air spring; the cross beam is of the hollow seamless steel tube structure and is good in air tightness, so the damping requirement of the high-speed train can be met.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a bogie and a frame of a high-speed rail train. Background technique [0002] At present, high-speed railways and urban rail vehicles are developing rapidly in my country, and the requirements for comfort and safety of vehicles are getting higher and higher. Because the stiffness of the air spring is adjustable and has a relatively constant low natural vibration frequency, it can improve the ride comfort of the car, so it has been widely used in the suspension device. [0003] The use of air springs with low vertical stiffness in rail train bogies improves the vertical dynamic performance of the vehicle, but at the same time reduces the anti-roll stiffness of the vehicle. When the vehicle passes through a curve, too low anti-roll stiffness will lead to an increase in the roll angle of the vehicle body. In severe cases, the outline of the vehicle body will exceed the limit,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/52B61F5/24
CPCB61F5/245B61F5/52
Inventor 张振先李晓燕周平宇宋晓文王晓明
Owner CRRC QINGDAO SIFANG CO LTD
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