Railway-vehicle headwall and processing method thereof
A technology for rail vehicles and processing methods, applied in the field of rail transit, can solve problems such as constraints and difficult to guarantee appearance effects, and achieve the effects of reducing self-weight, easy modular design and production, and high surface fit.
Active Publication Date: 2013-05-08
CRRC QINGDAO SIFANG CO LTD
View PDF8 Cites 14 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The existing stainless steel car body end wall is difficult to guarantee the appearance effect after processing, the main reason is the restriction of the existing welding technology
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0057] Example 1, such as Figure 1 to Figure 7 As shown, the rail vehicle end wall mainly includes:
[0058]The end wall outer panel 1, door column 2, end corner column 3, top curved beam 4, door upper beam 5 and threshold 6 connected into the end wall skeleton structure;
[0059] The outer panel 1 of the end wall is welded and fixed with the door column 2, the end corner column 3, the top curved beam 4, and the door beam 5 respectively by laser welding;
[0060] The outer panel 1 of the end wall is first overlapped by the left and right wall panels 1a and the upper wall panel 1b, and then fixed by laser welding.
[0061] Wherein, the edge of the upper wall panel 1b has a profiling step 8 processed by cold pressing, and the left and right wall panels 1a overlap the upper wall panel 1b through the profiling step 8 and are fixed by laser welding.
[0062] The left and right wall panels 1a and the upper wall panel 1b that make up the outer panel 1 of the end wall are all stain...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a railway-vehicle headwall and a processing method thereof. A connecting fixation manner of combining overlapping with laser welding is adopted for main frame members, so that requirement for appearance effect of stainless steel materials is met and strength and intensity of headwall integrate structure are remarkably improved. The railway-vehicle headwall comprises a headwall outer plate, door pillars, end corner pillars, a top camber beam, an upper cross beam of the door and a threshold forming a skeleton structure of the headwall. The headwall outer plate is welded and fixed with the door pillars, the end corner pillars, the top camber beam and the upper cross beam of the door by means of laser welding respectively. The headwall outer plate comprises a left wall plate, a right wall plate and an upper wall plate; the left wall plate, the right wall plate and the upper wall plate are lapped firstly and then are fixed by means of laser welding. Pressed steps processed by cold pressing are arranged at an upper edge of the upper wall plate, and the left wall plate and the right wall plate are lapped with the upper wall plate through the pressed steps and are fixed by means of laser welding.
Description
technical field [0001] The invention relates to an end wall made of stainless steel used in rail vehicles and a processing method thereof, belonging to the technical field of rail transportation. Background technique [0002] With the rapid popularization of domestic urban rail transit and the substantial increase in vehicle speed, higher design and use requirements are put forward for the end walls that constitute the main components of the vehicle body. [0003] Recently, stainless steel materials have been used in rail vehicles. The car body made of stainless steel has the characteristics of high strength, light weight and good corrosion resistance. In order to correspondingly improve the comfort, safety and economy requirements of vehicles, the research on the structure and welding process of stainless steel vehicles is becoming more and more urgent. [0004] The car body of a rail vehicle is roughly composed of frame components such as underframe, side walls, end walls...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): B61D17/06
Inventor 喻海洋丁叁叁钟元木田爱琴张寅河李春超
Owner CRRC QINGDAO SIFANG CO LTD