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Bogie frame and manufacturing method thereof

A manufacturing method and bogie technology, which are applied in the field of vehicle bogies, can solve the problems of unreasonable structural design, easy occurrence of cracks, low structural strength and fatigue resistance, etc., so as to avoid unstable pressing quality and avoid large stress. area, improve the structural strength and the effect of fatigue resistance

Active Publication Date: 2013-06-05
CRRC TANGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a bogie frame and a manufacturing method thereof, which are used to solve the problems of unreasonable structural design, low structural strength and fatigue resistance, and easy occurrence of cracks in the existing profiled frame

Method used

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  • Bogie frame and manufacturing method thereof
  • Bogie frame and manufacturing method thereof
  • Bogie frame and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, Embodiment 1 of the present invention provides a method for manufacturing a bogie frame, including:

[0022] Step 101, using steel plates to splice and weld the beams and side beams of the box structure respectively;

[0023] Step 102, butt jointing and welding the beam and the side beam together to form the basic frame of the bogie frame, and weld the joint of the beam and the side beam in the form of a butt weld;

[0024] Step 103 , welding an additional device on the basic frame to obtain the bogie frame, and the welding place between the additional device and the basic frame is welded in the form of a butt weld.

[0025] In this embodiment, both the beam and the side beam are box-shaped structures made of tailor-welded steel plates. Therefore, when the beam and the side beam are butted and welded together, the steel plates constituting the beam and the steel plates constituting the side beam can Set up the structure for butt joint, and t...

Embodiment 2

[0029] Embodiment 2 of the present invention also provides a method for manufacturing a bogie frame, such as figure 2 shown, including:

[0030] Step 201, use steel plates to splice and weld the beams and side beams of the box structure respectively, and use the steel plates as the upper cover plates of the beams and side beams, and the steel plates as the lower cover plates of the beams and side beams After welding to form a box-shaped structure, the edges of the preset size are reserved;

[0031] In this step, if image 3 with Figure 4 As shown, the beam 1 and the side beam 2 are welded by steel plates, specifically, the beam 1 is welded by the upper cover plate 11, the lower cover plate 12 and two vertical plates, and the side beam 2 is formed by the upper cover plate 21, the lower cover plate The plate 22, the vertical plate and the transverse buffer seat 4 are tailor-welded. When the beam 1 and the side beam 2 of the box-shaped structure are formed by tailor-welding ...

Embodiment 3

[0040] This embodiment provides a bogie frame, which can be manufactured using the bogie frame manufacturing method provided in the above-mentioned embodiment 1 or embodiment 2. For details, refer to the method embodiment provided in the above-mentioned embodiment 1 or embodiment 2 description of.

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Abstract

The invention provides a bogie frame and a manufacturing method thereof. The manufacturing method includes the steps: respectively splicing and welding steel plates to form beams and side beams of a box structure; butting and welding the beams and the side beams together to form a base frame of the bogie frame, and welding butt joints of the beams and the side beams by a butt-jointed seam type; and welding additional devices on the base frame to obtain the bogie frame, and welding welds of the additional devices and the base frame by the butt-jointed seam type. The bogie frame and the manufacturing method thereof can overcome the shortcomings that profiling quality of the beams and the side beams manufactured by pressing with dies is unstable, and the surfaces of the steel plates are easily scratched. The welds of the beams and the side beams and the welds of the base frame and the additional devices are welded by the butt-jointed seam type, a large stress area can be avoided, and the structural strength and the fatigue resistance of the bogie frame are improved.

Description

technical field [0001] The invention relates to vehicle bogie technology, in particular to a bogie frame and a manufacturing method thereof. Background technique [0002] The bogie frame is the main structural part of the vehicle bogie. The frame mainly includes beams and side beams. Various hangers for the primary and secondary suspension and braking of the bogie are welded on the beams and side beams. The overall structure of the frame and Strength plays a key role in the speed increase of railway passenger cars. [0003] At present, the bogie frame on the train is a profiled frame, that is, the beams and side beams of the frame are manufactured by pressing the heated steel plate out of the required shape with a mold, but the profiled frame is in the process of profiling. It is easy to scratch the surface of the steel plate, and if the profiling equipment is aging, it will easily lead to unstable profiling quality, thereby affecting the structural strength and fatigue res...

Claims

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Application Information

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IPC IPC(8): B23K31/02B61F5/52
Inventor 陈凤艳杨永勤徐应明刘洋赵家明
Owner CRRC TANGSHAN CO LTD
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