CN103203556B - Technology for assembling and welding upper center pans and lower cover plates of center frame of railway van truck - Google Patents
Technology for assembling and welding upper center pans and lower cover plates of center frame of railway van truck Download PDFInfo
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- CN103203556B CN103203556B CN201310113987.3A CN201310113987A CN103203556B CN 103203556 B CN103203556 B CN 103203556B CN 201310113987 A CN201310113987 A CN 201310113987A CN 103203556 B CN103203556 B CN 103203556B
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- lower cover
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- center frame
- central sill
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Abstract
Disclosed is a technology for assembling and welding upper center pans and lower cover plates of a center frame of a railway van truck. The technology manly solves problems that lower cover plates are upwardly tilted on a sleeper beam and deform due to technological inadaptability of an existing technology for assembling and welding upper center pans and the lower cover plates of a center frame. The technology is characterized by comprising steps of B, welding a web (1) of the center frame, the lower cover plates (2) and a partition plate (3) without welding the outer side of a K-shaped groove of the web (1) of the center frame and outer sides of K-shaped grooves of the lower cover plates (2) at the upper center pans (7); D, padding bottom surfaces of center pan seats (4) by thick washers (5) with thicknesses of 0.5 millimeter to enable the center pan seats (4) to be sunken relative to the lower cover plates (2) of the center frame by distances of 0.5 millimeter when the center pan seats (4) of the center frame and the lower cover plates (2) are assembled, and arranging crossbeam pressure heads (6) on a tool, in other words, arranging the crossbeam pressure heads (6) on the web (1) of the center frame and pressing the crossbeam pressure head (6) on the top surface of the web (1) of the center frame. The technology for assembling and welding the upper center pans and the lower cover plates of the center frame of the railway van truck has the advantage that the center frame machining quality can be guaranteed.
Description
Technical field
The present invention relates to a kind of truck body central sill processing technology, especially the box truck center sill body center plate of railway and lower cover erection welding technique.
Background technology
Central sill is the core component of railway freight-car boxcar body, important load-carrying and traction element.Central sill is generally formed by middle web, central sill lower cover, dividing plate, center filler, upper cover plate, striker, body center plate welding.Due to the raising of truckload and speed, car body processing request is improved, especially by 0.5 millimeter, 0.1 millimeter is brought up to body center plate and lower cover clearance requirement.And existing central sill body center plate and lower cover erection welding technique are due to technique inadaptability, lower cover is upturned at sleeper beam place, lower cover produces distortion, is difficult to ensure central sill crudy.
Summary of the invention
In order to solve existing central sill body center plate and lower cover erection welding technique due to technique inadaptability, lower cover is upturned at sleeper beam place, lower cover produces distortion, is difficult to the problem ensureing central sill crudy.The invention provides the box truck center sill body center plate of a kind of railway and lower cover erection welding technique.The box truck center sill body center plate of this railway and lower cover erection welding technique can ensure central sill crudy.
Technical scheme of the present invention is: the following A of technique of this railway box truck center sill body center plate and lower cover erection welding technique, middle web, lower cover, dividing plate group to point are welded; B, middle web, lower cover, dividing plate weld, and wherein, web does not weld at body center plate place with outside lower cover K type groove; Polish inside the K type groove of C, middle web and lower cover; When D, central sill center filler and lower cover group pair, at center filler bottom surface pad 0.5 millimeters thick pad, make center filler 0.5mm more recessed than central sill lower cover, frock installs crossbeam pressure head additional, be pressed on the upper end face of middle web; , at center filler bottom surface pad 0.5 millimeters thick pad, make center filler 0.5mm more recessed than central sill lower cover, frock install crossbeam pressure head additional, be pressed on the upper end face of middle web; The welding of E, center filler and polishing; F, lid central sill upper cover plate striker group to point are welded; G, central sill upper cover plate, striker weld; H, boring staking body center plate.
The present invention has following beneficial effect: this railway box truck center sill body center plate and lower cover erection welding technique are welded owing to adopting A, middle web, lower cover, dividing plate group to point; B, middle web, lower cover, dividing plate weld, and wherein, web does not weld at body center plate place with outside lower cover K type groove; Polish inside the K type groove of C, middle web and lower cover; When D, central sill center filler and lower cover group pair, at center filler bottom surface pad 0.5 millimeters thick pad, make center filler 0.5mm more recessed than central sill lower cover, frock installs crossbeam pressure head additional, be pressed on the upper end face of middle web; , at center filler bottom surface pad 0.5 millimeters thick pad, make center filler 0.5mm more recessed than central sill lower cover, frock install crossbeam pressure head additional, be pressed on the upper end face of middle web; The welding of E, center filler and polishing; F, lid central sill upper cover plate striker group to point are welded; G, central sill upper cover plate, striker weld; H, boring staking body center plate technique.Utilize 0.5 millimeters thick pad, make more recessed than central sill lower cover 2 0.5 millimeter of central sill center filler 4, avoid central sill center filler 4 to protrude central sill lower cover 2 like this; Recycling crossbeam pressure head 6 is pressed on the upper end face of middle web 1, because the facade rigidity of middle web 1 is large, effectively can avoid being pressed on lower cover 2 and produces elastic deformation, cause central sill center filler 4 to protrude central sill lower cover 2; In middle web 1, lower cover 2, dividing plate 3 weld, middle web 1 does not weld at body center plate 7 place with the outside of central sill lower cover 2 draw beam section K type groove, wait until in central sill upper cover plate 8, striker welding, central sill back of the body is used to weld, after cooling fully, pull down central sill back of the body, final guarantee central sill crudy.The box truck center sill body center plate of this railway and lower cover erection welding technique can ensure central sill crudy thus.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is Fig. 1 top views;
Accompanying drawing 3 is Fig. 1 left views;
Accompanying drawing 4 is Fig. 3 crossbeam pressure head left views.
Web in 1-in figure, 2-lower cover, 3-dividing plate, 4-central sill center filler, 5-pad, 6-crossbeam pressure head, 7-body center plate, 8-central sill upper cover plate.
detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in accompanying drawing, this railway box truck center sill body center plate and its technique of lower cover erection welding technique as follows: A, middle web 1, lower cover 2, dividing plate 3 group to point are welded; B, middle web 1, lower cover 2, dividing plate 3 weld, and wherein, web 1 does not weld at body center plate 7 place with outside lower cover 2K type groove; Polish inside C, middle web 1 and the K type groove of lower cover 2; When D, central sill center filler 4 and lower cover 2 groups pairs, at center filler 4 bottom surface pad 0.5 millimeters thick pad 5, make center filler 4 0.5mm more recessed than central sill lower cover 2, frock installs crossbeam pressure head 6 additional, be pressed on the upper end face of middle web 1; E, center filler 4 weld and polish; F, lid central sill upper cover plate 8 striker group to point are welded; G, central sill upper cover plate 8, striker weld; H, boring staking body center plate 7.
This railway box truck center sill body center plate and lower cover erection welding technique increase on existing Process ba-sis, and in step D, central sill group is to center filler 4 bottom surface pad 0.5 millimeter of pad, ensure the recessed lower cover 2 of center filler 4; Step D spider seat 4 groups of centerings, frock installs crossbeam pressure head 6 additional, be pressed on the upper end face of middle web 1, prevent lower cover 2 elastic deformation; In process B, use central sill to carry on the back the outside of son welding draw beam section K type groove at body center plate 7 place, after weld seam cooling fully, pull down central sill back of the body.And then thus ensure that body center plate and central sill lower cover clearance criteria are not more than 0.1 millimeter of technical requirement.Eliminate lower cover 2 to be upturned at sleeper beam place, lower cover 2 produces the problem of distortion, improves central sill crudy.
Claims (1)
1. the box truck center sill body center plate of railway and a lower cover erection welding technique, is characterized in that:
A, middle web (1), lower cover (2), dividing plate (3) group to point are welded;
B, middle web (1), lower cover (2), dividing plate (3) weld, and wherein, web (1) does not weld at body center plate (7) place with outside lower cover (2) K type groove;
Polish inside C, middle web (1) and the K type groove of lower cover (2);
During D, central sill center filler (4) and lower cover (2) group pair, at center filler (4) bottom surface pad 0.5 millimeters thick pad (5), make center filler (4) 0.5mm more recessed than central sill lower cover (2), frock installs additional crossbeam pressure head (6), is pressed on the upper end face of middle web (1);
The welding of E, center filler (4) and polishing;
F, lid central sill upper cover plate (8) striker group to point are welded;
G, central sill upper cover plate (8), striker weld;
H, boring staking body center plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113987.3A CN103203556B (en) | 2013-04-03 | 2013-04-03 | Technology for assembling and welding upper center pans and lower cover plates of center frame of railway van truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310113987.3A CN103203556B (en) | 2013-04-03 | 2013-04-03 | Technology for assembling and welding upper center pans and lower cover plates of center frame of railway van truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103203556A CN103203556A (en) | 2013-07-17 |
| CN103203556B true CN103203556B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310113987.3A Expired - Fee Related CN103203556B (en) | 2013-04-03 | 2013-04-03 | Technology for assembling and welding upper center pans and lower cover plates of center frame of railway van truck |
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| Country | Link |
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| CN (1) | CN103203556B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475998B (en) * | 2014-11-28 | 2016-08-17 | 哈尔滨电机厂有限责任公司 | Load bearing arm welding method |
| CN104439744B (en) * | 2014-12-01 | 2016-08-24 | 哈尔滨电机厂有限责任公司 | 1000MW generator unit stator transport end cap welding method |
| CN112605548B (en) * | 2020-12-30 | 2022-04-05 | 大连中车大齐车辆有限公司 | Assembly welding method for box-type center sill of railway wagon |
| CN114985869B (en) * | 2021-03-02 | 2023-08-08 | 中车株洲车辆有限公司 | Railway wagon center plate seat and automatic welding method thereof |
| CN114131140B (en) * | 2021-12-02 | 2023-08-22 | 中车株洲车辆有限公司 | Welding method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456420B (en) * | 2008-12-29 | 2010-08-18 | 南车长江车辆有限公司 | Box shaped central sill assembling method for railway vehicle splicing |
| CN102485566A (en) * | 2010-12-01 | 2012-06-06 | 西安轨道交通装备有限责任公司 | Traction sleeper for tank car |
| CN102485415A (en) * | 2010-12-01 | 2012-06-06 | 西安轨道交通装备有限责任公司 | Tank car traction and bolster assembly process and traction and bolster assembled through using same |
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- 2013-04-03 CN CN201310113987.3A patent/CN103203556B/en not_active Expired - Fee Related
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| CN103203556A (en) | 2013-07-17 |
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Granted publication date: 20150415 |