Side beam and bogie frame with same

By integrating the primary spring seat and the "H"-shaped welded structure of the bogie frame design, the problems of large welding volume and deformation control were solved, improving production efficiency and reducing the defect rate.

CN223750853UActive Publication Date: 2026-01-02北方国际合作股份有限公司
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Patent Information

Application Number
CN202520392845.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-02
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

The existing bogie frame involves a large amount of welding during production, and the amount of welding deformation is difficult to control, resulting in low production efficiency and defects.

Method used

An integrated primary spring seat is adopted, which integrates the inner and outer primary spring seats into a single forging. The bogie frame composed of the side beams and cross beams is connected by an "H"-shaped welding structure, reducing the amount of welding.

Benefits of technology

This reduced the amount of welding required for the framework, improved production efficiency, and lowered the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the integrated primary spring seat, the primary spring seat on the inner side and the primary spring seat on the outer side are integrated into a forge piece, and the problems that the welding amount of the primary spring seat on the inner side and the primary spring seat on the outer side is relatively large when the primary spring seat is welded to a vertical plate of a side beam, the production process is troublesome and laborious, and the welding deformation is difficult to control are solved. The side beam is formed by welding an inner vertical plate (4), an outer vertical plate (5), an upper cover plate (6), a lower cover plate (8), two end plates (7) and two integrated primary spring seats (3), the primary spring seats (3) are welded to the inner vertical plate (4) and the outer vertical plate (5) of the side beam respectively, and each primary spring seat (3) is formed by integrally forging an outer primary spring seat (3-1) and an inner primary spring seat (3-2). A bogie frame is of an H-shaped welding structure and is formed by welding a side beam assembly (1) and a cross beam assembly (2), and in the cross beam assembly, a motor hanging seat (2-1), a longitudinal beam (2-2) and a traction pull rod seat (2-3) are welded on a cross beam steel pipe (2-4).
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of side beam applied to bogie frame of railway vehicle and the bogie frame of side beam structure. BACKGROUND

[0002] Frame is the basic skeleton of bogie, generally mainly includes side beam component and crossbeam component, need to set size accurate interface with wheelset axle box device, primary suspension, secondary suspension and many structures.

[0003] The interface position of frame and primary suspension is mainly to set inside and outside primary spring seat in the lower part of side beam side, and inside and outside primary spring seat are welded with the vertical plate of side beam respectively, because there are inside and outside two primary spring seats in each end, so welding amount is relatively larger, and it is difficult and laborious in production process, and welding deformation is not easy to control. UTILITY MODEL CONTENT

[0004] The present application provides a kind of integrated primary spring seat, and inside and outside primary spring seat are integrated into a forge piece, reducing the number of parts.

[0005] The utility model is realized by the following technical solutions:

[0006] A side beam is welded by an inner vertical plate 4, an outer vertical plate 5, an upper cover plate 6, a lower cover plate 8, two end plates 7 and two integrated primary spring seats 3, wherein the primary spring seat 3 is welded with the inner vertical plate 4 and the outer vertical plate 5 of the side beam, and the primary spring seat 3 is integrally forged and formed by the outside primary spring seat 3-1 and the inside primary spring seat 3-2.

[0007] A bogie frame is welded by a side beam component 1 and a crossbeam component 2 in "H" type welding structure, and in the crossbeam component, motor hanger 2-1, longitudinal beam 2-2 and traction rod seat 2-3 are welded on crossbeam steel pipe 2-4.

[0008] The utility model reduces the welding amount of frame and side beam, thereby reducing defects and improving production efficiency. DRAWING DESCRIPTION

[0009] Figure 1 It is the frame axial drawing;

[0010] Figure 2 It is the side beam component axial drawing. DETAILED DESCRIPTION

[0011] Figure 1The framework is a welded "H" structure, comprising two side beam assemblies 1 and a cross beam assembly 2. Two cross beam steel pipes, longitudinal beams, traction rod seats and motor hangers are welded on the cross beam steel pipes. The side beam assembly 1 is a welded box structure; the longitudinal beam assembly is integrally designed and spans the two cross beam steel pipes; the traction rod seats are welded together with the cross beam steel pipes by two forgings.

[0012] The framework of the structure Figure 1 ) is a welded "H" structure, which is lightweight and designed, and the main structure of the framework is welded by the side beam assembly 1 and the cross beam assembly 2. The motor hanger 2-1, the longitudinal beam 2-2 and the traction rod seat 2-3 are welded on the cross beam steel pipe 2-4.

[0013] Figure 2 The side beam assembly 1 is a welded box structure, comprising an inner vertical plate 4, an outer vertical plate 5, an upper cover plate 6, a lower cover plate 8, two end plates 7 and two integrated primary spring seats 3 (3-1 shows an outer primary spring seat and 3-2 shows an inner primary spring seat).

[0014] The utility model has better structure and better workability.

Claims

1. A side beam characterized by: It comprises an inner vertical plate (4), an outer vertical plate (5), an upper cover plate (6), a lower cover plate (8), two end plates (7) and two integrated primary spring seats (3), wherein the primary spring seat (3) is welded with the inner vertical plate (4) and the outer vertical plate (5) of the side beam respectively, and the primary spring seat (3) is integrally forged and formed by an outer primary spring seat (3-1) and an inner primary spring seat (3-2).

2. A bogie frame, characterized by The side beam is formed by the side beam group (1) and the cross beam group (2) welded by the side beam of claim 1, and in the cross beam group, the motor hanger (2-1), the longitudinal beam (2-2) and the traction rod seat (2-3) are welded on the cross beam steel tube (2-4).