Coupling device of novel foundation braking device of railway wagon

Abstract

The invention relates to a railway wagon braking device, in particular to a coupling device of a novel foundation braking device of a railway wagon. The coupling device comprises a side frame, a brake shoe support and a foundation braking device, wherein the brake shoe support is fixedly connected with the horizontally placed foundation braking device, two symmetrically arranged brake beam hanging seat assemblies are fixedly welded on the side surface of the side frame, the lower end of the brake beam hanging seat assembly is hinged to the brake shoe support, the brake shoe support is connected with the side frame through the brake shoe support in a hanging mode, the brake shoe support is fixed to the foundation brake device, when a vehicle passes through a small-radius curve line, the rotation angle of the side frame along with the vehicle is less than that of a swing bolster along with the vehicle, the foundation braking device rotates along with swinging of the side frame, the rotation angle of the brake beam during swinging is reduced, and a certain gap is formed between a brake shoe mounted on the brake shoe support and the rim of a wheel, so that the problem that the brake shoe scratches the wheel is solved, the phenomenon that braking force is easily formed in the moving process of a vehicle is eliminated, the vehicle can smoothly pass through a small-radius curve line, and the braking release performance is excellent.

Description

technical field [0001] The invention relates to a braking device for railway freight cars, in particular to a coupling device for a new type of foundation braking device for railway freight cars. Background technique [0002] The function of the bogie foundation braking device is to transmit and amplify the braking force generated by the brake cylinder, so that the friction generated between the brake shoe and the wheel set or between the brake pad and the brake disc is converted into the friction between the wheel and the rail. The running vehicle is subjected to forward resistance and decelerates until it stops moving. [0003] At present, domestic railway freight car bogies generally use chute-type foundation braking devices, and a small number of bogies use suspension-type foundation braking devices. The sliding block at the end of the brake beam of the chute-type foundation braking device slides in the side frame chute. Since the sliding block will generate frictional ...

AI Technical Summary

Problems solved by technology

The sliding block at the end of the brake beam of the chute-type foundation braking device slides in the side frame chute. Since the sliding block will generate frictional resistance when sliding in the side frame, it will have adverse effects on the braking and release of the vehicle. Influence: The two ends of the brake beam of the suspended foundation brake device are hung on the bolster. Although the problem of frictional resistance generated when the slider slides in the side frame is solved, when the vehicle passes through a small-radius curve line, the brake beam With the large rotation angle of the bolster, one side of the brake shoe is easy to stick to the wheel rim, causing the brake shoe to scrape the wheel, forming a braking force during operation, and hindering the normal operation of the vehicle

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