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
CN112356870APending Publication Date: 2021-02-12SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2021-02-12

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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.
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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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