A bogie for an urban rail transit vehicle

Abstract

The invention relates to the technical field of rail transit, and discloses an urban rail transit vehicle bogie, in which the axis passing through the rotating frame, the axis of the rotating slot and the axis of the rotating hole are located on the same center line. The rotation device can be rotated with the axis of the rotation hole as the center line, and at the same time, the two ends of the rotation frame are fixedly installed on the positions on both sides. When the wheel shaft rotates, the brake disc is deflected and comes into contact with the guide wheel and pushes the guide wheel to make the rotating device rotate, so that the trapezoidal groove can always face the surface of the brake disc, so that the internal brake device and the brake disc The contact surface can always keep parallel to the surface of the brake disc when the brake disc deflects, so that the braking effect will not be reduced after the train enters the curve, and the deflection of the wheel shaft after the train enters the curve is avoided. However, the brake disc and the brake block are no longer in a parallel posture, which leads to the problem of decreased braking performance.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an urban rail transit vehicle bogie. Background technique [0002] With the development of society, human beings’ demand for the speed of rail transit is also increasing. The train has also experienced six major speed increases. The most profound impact on the speed of the train is the structure of the bogie. Every time the speed of the train is inseparable from the bogie The most advanced bogie today is a three-axle radial bogie, which is generally composed of a primary suspension, a secondary suspension, wheel axles, guiding devices, and braking devices. When the bogie passes through a curve, each wheel axle will change automatically. The radius of the curve can be adjusted at a certain angle so that it can better fit the curved track, and the center axis can be offset by a certain stroke so that it can still maintain the posture of fitting the track, which improves the st...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the use of the existing equipment proposed in the background technology, the present invention provides a bogie for urban rail transit vehicles, which has the feature that the brake blocks will not be incompletely fitted with the rotation of the wheel shaft and affect the braking performance. Advantages, it solves the problem that the braking performance drops after the train enters a curve

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