A kind of vehicle, bogie and frame thereof

Abstract

The invention discloses a bogie and a frame thereof, and further discloses a vehicle including the bogie. The frame comprises a cross beam, two connecting seats, two side beam assemblies and two torsion bars. The side beam assemblies each comprise tie rods and two side beams arranged side by side in an up-down mode. Every two side beams are arranged in an anti-symmetric mode and the middle portions are rotatably connected with the connecting seats. The two end portions, located on the same side, of every two side beams are hinged to each other through the tie rods. The two side beams on the upper side are fixedly connected by one of the torsion bar, and the two side beams on the lower side are fixedly connected by the other torsion bar. During use, when wheels on one side produce the displacement upwards and the wheel load is increased by F, the side beams corresponding to the wheels move upwards and drive the torsion bars to rotate, the side beams on the other side generates downwardforce F and transmits the downward force F to the corresponding wheels, so that the wheel load is correspondingly increased by F, and thus self-balancing of the wheel load can be achieved, and the risk of derailment is reduced and safety performance is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle steering, in particular to a bogie and its frame. Furthermore, the invention also relates to a vehicle comprising the bogie described above. Background technique [0002] The bogie is one of the most important components in the rail vehicle structure. The use of the bogie on the vehicle can increase the carrying weight of the vehicle and increase the running speed of the train. Under normal operating conditions, the car body is reliably located on the bogie It can buffer vibration and improve train comfort. [0003] 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. The composite material frame has the characteristics of light weight, high strength, vibration absorption and noise reduction, and large longitudinal rigidity. , favored by R&D personnel, has become ...

AI Technical Summary

Problems solved by technology

However, the torsional rigidity of the traditional composite material frame is small. When the vehicle is cornering or the road is not smooth, it is difficult to achieve the balance of the wheel weight, which is not conducive to reducing the wheel weight load reduction rate, which makes the risk of vehicle derailment higher and the safety performance is lower.

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