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Welding method for side frame of five-axle bogie welding frame for bridge erecting machine

A welding method and bridge erecting machine technology, applied in welding equipment, manufacturing tools, transportation and packaging, etc., can solve problems such as no way to guarantee quality, complicated welding process, low precision, etc., so as to avoid excessive deformation of side frames, Ensure weld penetration and reduce rework

Active Publication Date: 2019-02-12
CRRC QIQIHAR ROLLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The five-axis bogie is a frame-type welded structure. The structure of the side frame is complex and related to many related dimensions. The quality and precision of welding are high. To the problems of complicated welding process, low precision and no way to guarantee the quality

Method used

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  • Welding method for side frame of five-axle bogie welding frame for bridge erecting machine
  • Welding method for side frame of five-axle bogie welding frame for bridge erecting machine
  • Welding method for side frame of five-axle bogie welding frame for bridge erecting machine

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] Such as figure 1 with figure 2 As shown, it is a schematic diagram of the welded side frame structure, which includes an upper cover plate 1, a reinforcing plate 2, a web plate 3, a lower cover plate 4, a partition plate 5, a blocking plate 6 and a pin seat 7.

[0042] Such as image 3 As shown, the welding method of a five-axle bogie welding frame side frame for a bridge erecting machine provided by the invention comprises the following steps:

[0043] 1) Weld the upper cover plate left weldment 11 and the upper cover plate right weldment 12 into the upper cover plate weldment 13;

[0044] 2) Weld the left weldment 21 of the reinforcing plate and the right weldment 22 of the reinforcing plate to form the reinforcing plate 2;

[0045] 3) Weld the reinforcing plate 2 welded in the above steps and the weldment 13 of the middle and upper cove...

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Abstract

The invention relates to a welding method for a five-axis bogie welding framework side frame of a bridge girder erection machine. The method comprises the following steps that firstly, an upper cover plate left weldment and an upper cover plate right weldment are welded into an upper middle cover plate weldment; secondly, a strengthening plate left weldment and a strengthening plate right weldment are welded into a strengthening plate; thirdly, the strengthening plate welded in the above step and the upper middle cover plate weldment welded in the above step are installed and welded together; fourthly, an upper left cover plate weldment and the upper middle cover plate weldment are welded, an upper right cover plate weldment and the upper middle cover plate weldment are welded, and finally an upper cover plate is formed; fifthly, a web and a lower cover plate are positioned; sixthly, a partition plate, the web and the lower cover plate are assembled and subjected to assembling positioning; seventhly, the web and the lower cover plate are bundled, and inner side welding lines of the web and the lower cover plate are welded while overturning is conducted; eighthly, outer side welding lines of the web and the lower cover plate are welded while overturning is conducted; ninthly, the partition plate and the lower cover plate are welded; and tenthly, the partition plate and the web are bundled, welding lines are welded while overturning is conducted, and block boards are welded to the two ends of the upper cover plate and the two ends of the lower cover plate.

Description

technical field [0001] The invention relates to a welding method for a side frame of a five-axis bogie welding frame used for a bridge erecting machine, and belongs to the field of railway wagons. Background technique [0002] In order to meet the needs of my country's railway speed-up construction and adapt to the erection requirements of the new 2201T bridge girders and various railway concrete bridges on the speed-up line, our company has successfully developed the NJ3 flat car for the main engine of the TJ165 bridge erecting unit and the NJ4 flat car for the auxiliary machine. car. The vehicle has a load-bearing structure without center beams and side beams, with a maximum load of 165 tons and a body length of 30 meters. The equipped bogies are four-axle bogies and five-axle bogies. The five-axis bogie is a frame-type welded structure. The structure of the side frame is complex and related to many related dimensions. The quality and accuracy of welding are high. To the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02
CPCB23K31/02B23K2101/006
Inventor 王秀琴黄志强侯亚捷张瑞增章超荣李霞辛小龙杨海林刘国强
Owner CRRC QIQIHAR ROLLING CO LTD
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