Bogie for railway wagon and railway wagon

By improving the structural design of the bogie and adopting cross connecting rods and elastic ball joint sleeves, the stability problem of traditional bogies in straight and curved motion has been solved, thus improving the running stability and safety of railway freight cars.

CN224447776UActive Publication Date: 2026-07-03BAOTOU NORTH VENTURE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOTOU NORTH VENTURE
Filing Date
2025-07-18
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional cast steel bogies are prone to serpentine motion during straight-line movement. When passing through curves, the wheelsets cannot effectively steer, leading to increased lateral impact between the wheels and rails. After long-term use, the friction damping device loses its friction coefficient and lacks rigid restraint, affecting operational stability and safety.

Method used

The wheelset adopts a combined structure of a first side frame, a second side frame, a bolster, and a subframe, which are connected by cross connecting rods and elastic ball joint sleeves to provide flexible and rigid constraints, improve the wheelset's positioning ability and shock absorption effect, and increase the wheelset's adaptive adjustment capability.

Benefits of technology

It improves the operational stability and safety of railway freight cars, reduces wheel set swaying and lateral movement, reduces wheel flange wear, and enhances the vehicle's smoothness at curve speeds.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224447776U_ABST
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Abstract

The utility model discloses a railway truck bogie and railway truck. The railway truck bogie includes first wheel pair, second wheel pair, first side frame, second side frame, swing bolster and vice frame, the first side frame is connected with the first side of first wheel pair, the first side of second wheel pair respectively, the second side frame is connected with the second side of first wheel pair, the second side of second wheel pair respectively, the swing bolster is located between first wheel pair and second wheel pair, and both ends of swing bolster are fixed with first side frame and second side frame respectively, the vice frame includes first frame, second frame and cross connecting rod, first frame and second frame are located at both sides of swing bolster, and cross connecting rod is located directly below swing bolster. The railway truck bogie can improve the stability of vehicle operation.
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