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Straddling type monorail frame and assembly welding process method thereof

A process method and straddle-type technology, applied in the frame field of rail vehicle bogies, can solve the problems of structural asymmetry, unfavorable control of the overall size of the frame, large difference in welding volume and deformation size, etc., so as to improve work efficiency and product quality. The effect of huge control and improved frame size precision control

Inactive Publication Date: 2018-05-11
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology

Due to the serious asymmetry of the structure of the small frame body, the welding amount and the deformation size after welding are quite different, resulting in the situation that the whole frame body is trapezoidal or parallelogram after welding, which is extremely unfavorable to the control of the overall size of the frame

Method used

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  • Straddling type monorail frame and assembly welding process method thereof
  • Straddling type monorail frame and assembly welding process method thereof
  • Straddling type monorail frame and assembly welding process method thereof

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Embodiment Construction

[0014] refer to figure 2 and image 3 , the straddle type monorail framework of the present invention is divided into 5 module parts altogether, is respectively wide side beam 3, narrow side beam 4, end beam 5, crossbeam 6, stable wheel 7, assembly welding process is as follows:

[0015] 1. The wide side beams, narrow side beams, end beams and cross beams are first assembled and welded into a large frame body: firstly fix the cross beams and end beams, then push the wide side beams and narrow side beams from the outside to the inside of the frame, and combine with the beams and The end beam is fixedly connected by plugging, and then the welding work of the above four parts is completed;

[0016] 2. Adjust and correct the large frame body that has been welded, and determine the process benchmarks of the X, Y, and Z axes of the workpiece;

[0017] 3. Assembling and welding the large frame body and the stabilizing wheels: first fix the large frame body, then assemble the two s...

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Abstract

A straddling type monorail frame is characterized in that the straddling type monorail frame comprises five module parts of a wide side beam, a narrow side beam, an end beam, a cross beam and stabilizing wheels; the two ends of the wide side beam and the narrow side beam are connected with the cross beam and the end beam in inserted and assembly-welding modes to constitute a large frame body; andthe large frame body and the two stabilizing wheels are subjected to assembly welding to form the straddling type monorail frame. The straddling type monorail frame is split into separate parts reasonably specific to the structural characteristics and functions of the parts, and in this way, process scheme implementation and quality control of each part are better facilitated. Firstly, the situation that the wide side beam and the narrow side beam are different in welding shrinkage, one of the wide side beam and the narrow side beam is long, the other one is short, and the whole frame body isin a parallelogram shape consequently can be avoided effectively; secondly, through process improvement and optimization, the working efficiency can be improved by 40%, and economic benefits of hundreds of thousands of yuan can be obtained according to the assumption that 20 monorail vehicles are produced by a company annually; and finally, significant improvement is achieved in the aspect of control cover frame size precision, and improvement in the aspect of product quality control can also bring the great indirect economic benefits.

Description

technical field [0001] The invention relates to a frame of a rail vehicle bogie, in particular to a frame of a straddle-type monorail vehicle bogie and a welding process method. Background technique [0002] The original straddle-type monorail frame is mainly composed of two modules: a small frame body and a stable wheel (such as figure 1 As shown), the process is that the small frame body 1 and the stabilizing wheel 2 are individually assembled and welded, adjusted and repaired, and then combined to form a frame. Due to the serious structural asymmetry of the small frame body, the welding amount and the deformation size after welding are quite different, resulting in the trapezoidal or parallelogram shape of the entire frame body after assembly and welding, which is extremely unfavorable for the overall size control of the frame. Contents of the invention [0003] The purpose of the present invention is to provide a new frame and assembly welding process for a straddle-t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/52B23K31/02
Inventor 文娟石海明王靖于闯
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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