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Roof mounting process for rail vehicle body and explorator device

A rail vehicle and profiling device technology, applied to auxiliary devices, vehicle parts, manufacturing tools, etc., can solve problems such as large overall size, relative size deviation, and difficulty in ensuring installation accuracy

Pending Publication Date: 2021-09-10
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The roof joist generally adopts a four-sided frame structure formed by two sets of 8200mm and two sets of 1800mm strip structures. The overall size of the roof joist is relatively large, and the accuracy requirements for installation are also high. Positioning, the installation accuracy is difficult to guarantee
Moreover, the roof joist is connected to the main structure of the car body by welding, and the welding deformation leads to deviations in the relative dimensions of the overall flatness, diagonal, and mounting holes of the roof joist after welding, which further causes the mounting holes on the roof side beam to be damaged. It does not correspond to the mounting holes on the roof, so that the roof cannot be installed on the roof side beams, which greatly increases the difficulty and time of work, increases the cost of work, and also reduces the work efficiency

Method used

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  • Roof mounting process for rail vehicle body and explorator device
  • Roof mounting process for rail vehicle body and explorator device
  • Roof mounting process for rail vehicle body and explorator device

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

[0044] Such as Figure 1 to Figure 4 As shown, the present invention provides a camming device for fixing and constraining the roof joist 1 and installing the roof joist 1 to the main structure 2 of the vehicle body.

[0045] The profiling device includes a profiling main body 3 and a plurality of profiling brackets 4. The profiling main body 3 matches the structural size of the roof joist 2. According to the size of the profiling main body 3, in this embodiment, two profiling frames are set. Support 4, the former main body 3 is supported on two former support...

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Abstract

The invention relates to a roof mounting process of a rail vehicle body and an explorator device. The roof mounting process comprises the following steps of S1, four roof joists are fixedly connected to an erection reference plane of the profiling device through bolts to form a quadrilateral general frame; S2, the pre-assembled roof joists and an explorator fall into a vehicle body main structure together; S3, the roof joists and the vehicle body main structure are welded, connected and fixed; S4, after welding, the explorator is detached from the roof joists; and S5, the roof falls into the installed roof joists, and the roof and the roof joists are fixedly connected through bolts. The roof can be rapidly and accurately installed, the operation efficiency can be improved, and the operation cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle manufacturing, and in particular relates to a roof installation process and a profiling device for a rail vehicle body. Background technique [0002] The steel structure of the rail vehicle body includes the underframe, side walls, end walls and roof. The roof generally adopts the overall structure of aluminum profiles. Form the main structure of the car body together, and then install the roof as a whole on the top of the main structure of the car body. [0003] In order to fix the roof, a square frame-shaped roof joist is installed on the top of the main structure of the car body. The roof joist and the main structure of the car body are fixedly connected by welding. The roof of the rail vehicle body is fastened by bolts. It is fixedly installed on the roof joist in a fixed way to complete the fixed installation between the roof and the main structure of the car body. [0004] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/02B23K37/04B23K37/00
CPCB23K31/02B23K37/0426B23K37/003B23K2101/006
Inventor 李世海张风东万帅袁耀伟王正茂
Owner CRRC QINGDAO SIFANG CO LTD
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