Trailer framework and trailer bogie with same

Abstract

The invention discloses a trailer framework. The trailer framework comprises a crossbeam and side beams fixedly arranged at the two ends of the crossbeam; the side beams are each of a U-shaped structure; a first braking beam which is located between the side beams is arranged at the front upper part of the crossbeam, and a second braking beam which is located between the side beams is arranged at the rear upper part of the crossbeam; the first braking beam and the second braking beam are parallel; the two ends of both the first braking beam and the second braking beam are fixedly connected with the inner sides of the side beams correspondingly; braking seats which are used for braking devices being installed are correspondingly arranged on the first braking beam and the second braking beam; the multiple braking seats of the first braking beam are located on the front side and are transversely arrayed on the first braking beam at intervals; and the multiple braking seats of the second braking beam are located on the rear side and are transversely arrayed on the second braking beam at intervals. According to the trailer framework, designing and machining of the crossbeam can be easier, and stress concentration on the crossbeam can be reduced. The invention further discloses a trailer bogie including the trailer framework.

Description

technical field [0001] The invention relates to the technical field of bogies, in particular to a trailer frame. Furthermore, the present invention also relates to a trailer bogie provided with the aforementioned trailer frame. Background technique [0002] In rail vehicles, the bogie is an important part. The trailer bogie is installed on the lower side of the trailer body, which usually includes frame, primary suspension, secondary suspension, axle box, wheel set, brake device and other components. [0003] In a typical trailer bogie, the brake device includes a brake caliper, and the brake seat is directly connected to the beam in the frame. The brake seat forms a cantilever structure relative to the beam, and the brake caliper is connected to the corresponding brake caliper. seat. [0004] However, the brake seat is directly connected to the beam, and the cantilever is relatively long in the running direction of the vehicle. In addition, the connection area between the...

AI Technical Summary

Problems solved by technology

[0004] However, the brake seat is directly connected to the beam, and the cantilever is relatively long in the running direction of the vehicle. In addition, the connection area between the brake seat and the beam is usually connected with a variable cross-section. The problem of stress concentration is more serious, and usually requires more complex structure and welding design, which increases the difficulty of designing and processing the beam

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