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High-speed rail vehicle bogie

A high-speed track and bogie technology, applied in the field of bogies, can solve problems such as inferior suspension devices, poor line adaptability, and poor curve passing ability, so as to achieve accurate and reliable suspension parameters, reduce wheel and rail wear, and reduce springs. lower quality effect

Pending Publication Date: 2021-02-12
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of high-speed bogies in the prior art, such as large unsprung mass, poor line adaptability, poor curve passing ability, and inferior primary suspension devices, to provide a high-speed rail vehicle bogie

Method used

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  • High-speed rail vehicle bogie
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  • High-speed rail vehicle bogie

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Embodiment 1

[0042] Such as Figure 1-8 As shown, the present invention provides a railway vehicle bogie, comprising:

[0043] A railway vehicle bogie comprising:

[0044] Wheel set, including wheel 1;

[0045] The hinged frame is located on the inner side of the wheel set and includes two T-shaped side beams 21, the central axes of the two T-shaped side beams 21 coincide, and the cylindrical beam 212 of one T-shaped side beam 21 extends into the other Inside the cylindrical beam 212 of the T-shaped side beam 21, two bearings 36 with a certain transverse span are arranged between the two T-shaped side beams 21, and the two bearings 36 can realize the horizontal axis between the two T-shaped side beams 21. Free rotation, so that the torsional rigidity between the two T-shaped side beams 21 is zero;

[0046] A series of suspension devices, including a series of spring parts 41 and a series of positioning parts 42, the series of positioning parts 42 include two longitudinal tie rods and a ...

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Abstract

The invention discloses a high-speed rail vehicle bogie which is arranged in an inner axle box mode, a hinged framework is supported on the inner side of a wheel set, the curve passing performance ofthe bogie can be effectively improved, the hinged framework is of a double-T-shaped structure, the central axes of cylindrical beams of two T-shaped side beams coincide, one cylindrical beam stretchesinto the other cylindrical beam. Two bearings with a certain transverse span are arranged between the two T-shaped side beams, the two T-shaped side beams can rotate freely, the torsional rigidity ofthe bogie is zero, the uniform load capacity, the line adaptability, the curve trafficability and the high-speed operation stability of the bogie are enhanced. The contradiction between the operationstability and the curve trafficability of a traditional bogie is fundamentally solved, the two primary suspension devices are adopted, the positioning rigidity of the primary suspension devices in all directions can be determined by independent components, the positioning rigidity of the primary suspension devices in all directions can be optimal at the same time, and parameters are more accurateand reliable.

Description

technical field [0001] The invention relates to the technical field of bogies, in particular to a high-speed rail vehicle bogie. Background technique [0002] The existing high-speed bogies all adopt integral frame bogies. The integral frame bogies have no diamond-shaped deformation and high diamond-resistant rigidity, which can enhance the running stability of the bogies, that is, enhance the snaking stability of the bogies during high-speed operation, but the The integral frame bogie has high torsional rigidity, poor line adaptability, and poor curve passing ability. The traditional integral frame bogie cannot solve the contradiction between running stability and curve passing. [0003] The positioning stiffness in one direction of the existing bogie primary suspension device is often provided by two or more components. This positioning method requires a trade-off of stiffness distribution for one component, and it is necessary to optimize and choose the stiffness in diffe...

Claims

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Application Information

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IPC IPC(8): B61F5/52B61F5/30B61F5/10B61F5/24
CPCB61F5/10B61F5/24B61F5/304B61F5/52
Inventor 周张义刘昊劳良铖
Owner SOUTHWEST JIAOTONG UNIV
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