Built-in axle box suspension railway wagon welding bogie

Abstract

The invention relates to a built-in axle box suspension railway wagon welding bogie, which consists of an axle shaft device, an axle box and a suspension device thereof, a framework assembly, a brake device, an elastic side bearing and a center plate connecting device, the axle device is composed of an axle, wheels, brake discs and bearings, the bearings are arranged on the inner sides of the two wheels, and the brake discs are located on the inner sides of the two bearings. A center plate connecting device is installed on the framework assembly, and a guide frame on the center plate connecting device makes contact with the axle box and a spring of the suspension device of the axle box. The axle box and the suspension device thereof are arranged on the inner side of a wheel and composed of axle boxes, locking blocks and the like, the axle boxes are arranged on the inner side of the wheel and matched with bearings on axles, the locking blocks are fixedly connected with the axle boxes, and spring caps of the axle boxes and the suspension device thereof are connected with a guide frame on the framework assembly through hanging rings. The brake device is hung on a brake hanging seat on the framework assembly through a fastener; the two elastic side bearings are arranged on the outer side of the center line of the sleeper beam composed of the framework. The bogie is compact in structure and light in weight, and the curve passing capacity is enhanced.

Description

Technical field: [0001] The invention relates to the technical field of railway transportation equipment, in particular to the technical field of railway freight car bogie manufacturing, in particular to a welded bogie for railway freight car with built-in axle box suspension. Background technique: [0002] Existing railway freight car bogies can be divided into outer axle box suspension type bogies and inner axle box suspension type bogies according to the difference of axle box suspension arrangement positions. At present, domestic freight car bogies all use the outer axle box suspension type bogie. This type of bogie hangs the axle box and installs it on the outside of the wheel set, so that the bogie frame forms a wheel external support mode. The bogie frame of this mode The quality of the wheel set is relatively large, and the ability to pass through small radius curves is weak. In particular, the mass of the wheel set is an unsprung mass, which causes a large force on...

AI Technical Summary

Problems solved by technology

At present, domestic freight car bogies all use the outer axle box suspension type bogie. This type of bogie hangs the axle box and installs it on the outside of the wheel set, so that the bogie frame forms a wheel external support mode. The bogie frame of this mode The mass of the wheel set is relatively large, and the ability to pass through small-radius curves is weak

In particular, the mass of the wheel set is an unsprung mass, which causes a large force on the wheel-rail movement and poor dynamic performance.

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