Railway wagon bogie and rubber blanket thereof

Abstract

The invention provides a railway wagon bogie and a rubber blanket thereof, and operation demands of vehicles can preferably be met. The rubber blanket comprises an upper lining plate, a lower lining plate and a rubber layer, wherein the rubber layer is arranged between the upper lining plate and the lower lining plate. The upper lining plate and the lower ling plate are provided with planes and two inclined planes, wherein the two inclined planes are spliced with two lateral edges of the planes. The two inclined planes of the upper lining plate and the two inclined planes of the lower lining plate are provided with convex-concave end faces and are connected with the rubber layer through the convex-concave end faces. Concave parts and convex parts of the convex-concave end faces are distributed along the horizontal directions. The concave parts of the convex-concave end faces of the upper lining plate are opposite to the convex parts of the convex-concave end faces of the lower lining plate. When transverse force and longitudinal force are acted on the rubber blanket, shear force is acted on the rubber layer of plane portions, and the shear force and tension / compression force are acted on the rubber layer of the inclined planes at the same time. Due to the fact that rubber has the feature that tension rigidity is greater than shear rigidity, therefore longitudinal rigidity and transverse rigidity of the rubber blanket are all improved.

Description

technical field [0001] The invention relates to the technical field of railway freight cars, in particular to a rubber pad for a railway freight car bogie. The present invention also relates to a railway freight car bogie with the above rubber pad. Background technique [0002] The railway freight car bogie generally includes car body, bogie, brake device, coupler buffer device and other parts. The bogie refers to a trolley composed of two or several wheel sets with a special frame (such as a bolster and a side frame), which can achieve relative rotation with the track. The main function of the bogie is to support the car body, guide the car body along the track and bear various loads from the car body and the line. [0003] The most common bogie on a railway freight car is a cast steel three-piece bogie. The so-called "three big pieces" refers to a bolster and two cast side frames; the bolster is connected to the side frame and is used to control the side frame The movem...

AI Technical Summary

Problems solved by technology

[0009] According to calculation analysis and experiments, the transverse and longitudinal shear stiffness of the above-mentioned flat rubber pad 01 are the same; however, the longitudinal shear stiffness required by the vehicle during operation is relatively large, while the transverse shear stiffness is relatively small, and the vehicle is running The lateral rigidity and longitudinal rigidity required for high-speed operation are both large. When the shear rigidity required by the vehicle reaches a certain level, the existing rubber pad 01 is difficult to meet the use requirements.

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